A surface oxide treatment device for producing expansion valves

Abstract

This invention discloses a surface oxide treatment device for producing expansion valves, applied in the field of expansion valve manufacturing technology. The invention utilizes a support component and a concave bracket to confine the copper metal sheet of the expansion valve within the pickling tank. Simultaneously, a vibrating component generates vibration at a certain frequency within the concave bracket. Through the coordinated use of a cleaning component, the concave bracket oscillates to a certain amplitude, accelerating the dissolution of the surface oxide layer on the copper metal sheet of the expansion valve under acidic solution immersion. This removes the dissolved oxides, allowing deeper oxides to react with the acidic solution, achieving complete removal. Furthermore, by incorporating the cleaning component and the oscillating component, the concave bracket, along with the copper metal sheet of the expansion valve, oscillates back and forth, shortening the pickling time and improving cleaning efficiency.

Description

Technical Field

[0001] This invention belongs to the field of expansion valve manufacturing technology, and specifically relates to a surface oxide treatment device for producing expansion valves. Background Technology

[0002] Due to limitations in the manufacturing process of expansion valves, they will face various usage scenarios during processing, not just the one mentioned below. More specifically, since expansion valves are mainly made of copper metal, and an oxide layer will form on the surface of copper metal during storage, the oxide on the surface of the raw material needs to be removed during the production of expansion valves. Chemical pickling is the conventional method for removing oxides.

[0003] Conventional pickling methods involve immersing copper metal directly in an acidic solution and allowing it to stand and react with the oxides. However, for oxide layers of a certain thickness, although the oxides on the surface of the copper metal can be dissolved by immersion, the residue remains on the surface, protecting the deeper oxides and preventing the acidic solution from dissolving them, thus reducing the cleaning effect.

[0004] Based on the above-mentioned issues, it can be found that existing surface oxide treatment equipment for production expansion valves on the market is difficult to avoid the problems mentioned above, thus failing to achieve the desired effect. Therefore, we propose a surface oxide treatment equipment for production expansion valves that can accelerate the dissolution rate of the surface oxide layer, remove the dissolved oxides, and allow deeper oxides to react with the acidic solution to achieve complete removal. Summary of the Invention

[0005] The purpose of this invention is to address an existing surface oxide treatment device for producing expansion valves. Its advantages include a support assembly that uses a concave bracket to confine the copper metal plate of the expansion valve within the pickling tank. A vibrating component generates vibration at a specific frequency within the concave bracket, and a cleaning component works in conjunction with this to cause the concave bracket to oscillate at a certain amplitude. This accelerates the dissolution of the surface oxide layer on the copper metal plate of the expansion valve under acidic solution immersion, removing the dissolved oxides and allowing deeper oxides to react with the acidic solution for complete removal. Furthermore, the cleaning component, through the oscillating action of the oscillating component, allows the concave bracket and the copper metal plate of the expansion valve to oscillate back and forth, shortening the pickling time and improving cleaning efficiency. Additionally, a pressing component, as the moving platform descends, presses against the lifting component, raising the copper metal plate of the expansion valve to a certain height. This facilitates the scraping component's removal of the already removed oxides from the surface of the copper metal plate, exposing deeper oxides to the acidic solution and enhancing the cleaning effect.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a surface oxide treatment device for producing expansion valves, comprising an acid pickling tank, a support platform provided at the top of the acid pickling tank, guide posts bolted to the four corners of the bottom of the support platform, the bottom of the guide posts being bolted to the acid pickling tank, a movable platform provided at the bottom of the support platform, the movable platform being slidably connected to the surface of the guide posts, a support component provided inside the acid pickling tank, a cleaning component bolted to the bottom of the movable platform, one end of the cleaning component being rotatably connected to the support component, and the cleaning component and the support component being used in conjunction;

[0007] The supporting component includes a concave bracket, with two connecting rods rotatably connected to both sides of the concave bracket. The side of the connecting rod closest to the inner wall of the pickling tank is rotatably connected to the pickling tank. Lifting components are bolted to the inner wall of the concave bracket, and the lifting components are used in conjunction with the cleaning component. Vibration components are bolted to both sides of the bottom of the concave bracket.

[0008] The cleaning assembly includes a protective box, with a swinging component bolted to the right side inside the protective box. The side of the swinging component near the concave bracket is rotatably connected to the concave bracket. A scraping component is provided inside the protective box, with the scraping component located at the top and bottom of the concave bracket. Pressing components are bolted to both sides of the bottom of the moving platform, and the pressing components are used in conjunction with the lifting component.

[0009] By adopting the above technical solution, a support component is set up, and the concave bracket can confine the copper metal plate of the expansion valve inside the pickling tank. At the same time, the vibrating component can make the concave bracket vibrate at a certain frequency. With the cooperation of the cleaning component, the concave bracket swings to a certain amplitude, which can accelerate the dissolution rate of the surface oxide layer of the copper metal plate of the expansion valve under the immersion in acidic solution and remove the dissolved oxides. This allows deeper oxides to react with the acidic solution and achieve a complete removal effect. By setting up the cleaning component, the concave bracket and the copper metal plate of the expansion valve swing back and forth under the action of the swinging component, which can shorten the pickling time and improve the cleaning efficiency. The pressing component presses against the lifting component when the moving platform descends, causing the lifting component to lift the copper metal plate of the expansion valve to a certain height. This makes it easier for the scraping component to scrape off the oxides already removed from the surface of the copper metal plate of the expansion valve, exposing the deeper oxides to the acidic solution and enhancing the cleaning effect.

[0010] The present invention is further configured such that: the lifting component includes an elastic bladder, the elastic bladder is respectively bolted to both sides of the top of the pickling tank, a fixing cylinder is bolted to each of the four corners of the inner wall of the concave bracket, a connecting pipe is connected between two adjacent fixing cylinders, and an elastic conveying pipe is connected to each of the opposite sides of the two connecting pipes on both sides, the side of the elastic conveying pipe near the elastic bladder is connected to the elastic bladder, a lifting column is slidably connected inside the fixing cylinder, a push plate is bolted to the bottom of the lifting column, a return spring is bolted to the bottom of the push plate, and the bottom of the return spring is bolted to the inner wall of the fixing cylinder, and a limit corner block is bolted to the top of the lifting column.

[0011] Using the above technical solution, by setting up a lifting component, when the moving platform drives the pressing component to descend, the pressing component will press against the elastic bladder, causing it to deform. Therefore, the gas pre-stored inside will be transported to the connecting pipe through the elastic conveying pipe, and then to each fixed cylinder through the connecting pipe. Thus, under the action of compressed gas, the push plate will be lifted, thereby causing the lifting column to lift the copper metal plate of the expansion valve to a certain height, thereby pushing the copper metal plate of the expansion valve out of the interior of the concave bracket, which facilitates the removal of oxides already removed from its surface by the scraping component.

[0012] The present invention is further configured such that: the vibrating element includes a mounting block, a drive box is bolted inside the mounting block, a protective shell is bolted to both the front and rear sides of the drive box, the output end of the drive box extends into the interior of the protective shell, and an eccentric block is sleeved on the surface of the conveying end of the drive box.

[0013] By adopting the above technical solution, a vibrating component is set up, and the eccentric block is driven to rotate inside the protective shell by the drive box. The eccentric block is excited by the centrifugal force of high-speed rotation, which causes the copper metal plate of the expansion valve to vibrate. This can accelerate the dissolution rate of the surface oxide layer and remove the dissolved oxide, thereby improving the oxide processing efficiency.

[0014] The present invention is further configured such that: a connecting frame is rotatably connected to the top and bottom of the surface of the connecting rod, and the side of the connecting frame near the concave bracket and the inner wall of the pickling tank is bolted to the concave bracket and the pickling tank respectively.

[0015] By adopting the above technical solution and setting a connecting frame, the connecting rod can be rotatably connected to the concave bracket and the pickling tank respectively, thereby facilitating the concave bracket to swing to a certain extent.

[0016] The invention is further configured such that: the swinging component includes a support plate, the support plate is bolted to the inside of the protective box, a turntable is rotatably connected to the top of the support plate, a push column is welded to the bottom of the turntable near the inner wall of the protective box, an upper rocker arm is sleeved on the surface of the push column, an movable hole for cooperating with the push column is opened at the top inside the upper rocker arm, a rotating column is bolted to the bottom inside the upper rocker arm, the rotating column is rotatably connected to the support plate near the support plate, a lower rocker arm is slidably connected inside the upper rocker arm, the bottom of the lower rocker arm extends to the bottom of the protective box, and is rotatably connected to the concave bracket near the concave bracket.

[0017] By adopting the above technical solution, by setting up a swinging component, the turntable rotates on the top of the support plate, causing the push column to rotate synchronously. When the push column moves in the movable hole, it will push the upper rocker arm to rotate around the rotating column as the axis. Therefore, the swinging of the upper rocker arm will drive the lower rocker arm to swing, thus achieving the goal of driving the concave bracket to swing at a certain amplitude, thereby accelerating the dissolution rate of the surface oxide layer and removing the dissolved oxides.

[0018] The invention is further configured such that: a rotating shaft is bolted to one side of each of the two turntables facing each other, and a dual-axis motor is bolted to the right side inside the protective box, with the side of the dual-axis motor near the rotating shaft being bolted to the rotating shaft.

[0019] By adopting the above technical solution, a rotating shaft and a dual-axis motor are set up. Under the drive of the dual-axis motor, the rotating shaft drives the corresponding turntable to rotate, so that the front and rear turntables can rotate synchronously, thereby allowing the concave bracket to swing stably.

[0020] The invention is further configured such that: the scraping component includes two reciprocating moving parts, which are disposed on the front and rear sides inside the protective box; a connecting plate is bolted between the opposite sides of the two reciprocating moving parts; a synchronizing rod is bolted inside the connecting plate; the bottom of the synchronizing rod extends to the bottom of the protective box and is bolted to an upper scraper; a first follower plate is bolted to both the front and rear sides of the upper scraper; a second follower plate is disposed inside the first follower plate; a lower scraper is bolted between the opposite sides of the two second follower plates; and the second follower plate is slidably connected to the concave bracket; the upper scraper and the lower scraper are respectively located at the top and bottom of the concave bracket.

[0021] By adopting the above technical solution, a scraping component is set up, and the reciprocating moving part is driven by an external drive device. This causes the connecting plate to move the upper scraper through the synchronizing rod and synchronizing plate, and to move the lower scraper synchronously through the first follower plate and the second follower plate. This allows both to remove the oxides that have been removed from the surface of the copper metal plate of the expansion valve. It also exposes the deep oxides to the acidic solution, allowing the deep oxides to come into contact with the acidic solution, thereby completely removing the oxides and enhancing the cleaning effect.

[0022] The present invention is further configured such that: the reciprocating moving part includes a main shaft, the main shaft is rotatably connected inside the protective box, the surface of the main shaft is provided with a bidirectional moving groove in an annular shape, a moving block is sleeved on the surface of the main shaft, and the side of the moving block near the connecting plate is bolted to the connecting plate, a fixed rod is rotatably connected to the top of the inner wall of the moving block, a sliding block is bolted to the bottom of the fixed rod, and the sliding block is slidably connected inside the bidirectional moving groove.

[0023] By adopting the above technical solution, a reciprocating moving part is set up, and the main shaft is driven to rotate by an external drive device. The main shaft rotates, and at the same time, under the action of the bidirectional moving groove, the sliding block moves inside the bidirectional moving groove and drives the moving block to move. When the sliding block moves to the other end of the main shaft, under the action of the bidirectional moving groove, the sliding block will move in the opposite direction, thereby achieving the effect of driving the upper scraper and the lower scraper to reciprocate to remove oxides from the copper metal plate of the expansion valve.

[0024] The present invention is further configured such that: the pressing member includes a pressing plate, and a sliding column is provided on the front and rear sides inside the pressing plate. The top of the sliding column extends to the top of the pressing plate and is bolted to the moving platform. A pressing spring is sleeved on the surface of the sliding column. The pressing spring is bolted to the pressing plate and the moving platform respectively on the side close to the pressing plate and the moving platform. The pressing plate is used in conjunction with the elastic bladder.

[0025] By adopting the above technical solution, by setting up a pressure-blocking component, the sliding column and pressure plate will move synchronously when the moving platform descends, so that the pressure plate squeezes the elastic bladder. Under the elastic force of the pressure spring, the pressure of the pressure plate on the elastic bladder can be increased, so that the internal volume of the elastic bladder changes due to deformation, thereby allowing the gas inside to be discharged.

[0026] The invention is further configured such that hydraulic cylinders are bolted to both sides of the top of the support platform, and the bottom of the hydraulic cylinders extends to the bottom of the support platform and is bolted to the moving platform.

[0027] By adopting the above technical solution and setting up a hydraulic cylinder, the mobile platform can be easily moved, thereby realizing or relieving the work of removing oxides from the surface of the copper metal plate of the expansion valve by the scraper.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. By setting up a support component, the concave bracket can confine the copper metal plate of the expansion valve inside the pickling tank. At the same time, the vibrating component can make the concave bracket vibrate at a certain frequency. With the cooperation of the cleaning component, the concave bracket can swing to a certain extent, thereby accelerating the dissolution rate of the surface oxide layer of the copper metal plate of the expansion valve under the immersion in acidic solution, and removing the dissolved oxides, so that the deeper oxides react with the acidic solution to achieve a complete removal effect.

[0030] 2. By setting up cleaning components, the concave bracket and the copper metal plate of the expansion valve swing back and forth under the action of the swinging component, which can shorten the pickling time and improve cleaning efficiency. The pressing component presses against the lifting component as the moving platform descends, causing the lifting component to lift the copper metal plate of the expansion valve to a certain height. This makes it easier for the scraping component to scrape off the oxides that have been removed from the surface of the copper metal plate of the expansion valve, exposing the deep oxides to the acidic solution and enhancing the cleaning effect. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 This is a schematic diagram of the support component structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the lifting component structure of the present invention;

[0034] Figure 4 This is a schematic diagram of the vibrating element structure of the present invention;

[0035] Figure 5 This is a schematic diagram showing the connection between the cleaning component and the mobile platform of the present invention;

[0036] Figure 6 This is a schematic diagram showing the connection between the cleaning component and the supporting component of the present invention;

[0037] Figure 7 This is a cross-sectional schematic diagram of the reciprocating moving part of the present invention;

[0038] Figure 8 This is a schematic diagram of the pressing component structure of the present invention.

[0039] Reference numerals: 1. Pickling tank; 2. Support platform; 3. Guide column; 4. Moving platform; 5. Support assembly; 51. Concave bracket; 52. Connecting rod; 53. Lifting component; 531. Elastic bladder; 532. Fixed cylinder; 533. Connecting pipe; 534. Elastic conveying pipe; 535. Lifting column; 536. Push plate; 537. Return spring; 538. Limiting corner block; 54. Vibrating component; 541. Mounting block; 542. Drive box; 543. Protective shell; 544. Eccentric block; 6. Cleaning assembly; 61. Protective box; 62. Swinging component; 621. Support plate; 622. Turntable; 623. 624. Push column; 625. Upper rocker arm; 626. Movable hole; 627. Lower rocker arm; 628. Rotating column; 63. Scraper; 631. Reciprocating moving part; 6311. Main shaft; 6312. Bidirectional moving groove; 6313. Moving block; 6314. Fixed rod; 6315. Sliding block; 632. Connecting plate; 633. Synchronizing rod; 634. Upper scraper; 635. First follower plate; 636. Second follower plate; 637. Lower scraper; 64. Pressing part; 641. Pressing plate; 642. Sliding column; 643. Pressing spring; 7. Connecting frame; 8. Rotating shaft; 9. Dual-axis motor; 10. Hydraulic cylinder. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] refer to Figure 1-8 A surface oxide treatment device for producing expansion valves includes an acid pickling tank 1, a support platform 2 at the top of the acid pickling tank 1, guide posts 3 at the four corners of the bottom of the support platform 2, the bottom of the guide posts 3 being bolted to the acid pickling tank 1, a movable platform 4 at the bottom of the support platform 2, the movable platform 4 being slidably connected to the surface of the guide posts 3, a support component 5 inside the acid pickling tank 1, a cleaning component 6 at the bottom of the movable platform 4, one end of the cleaning component 6 being rotatably connected to the support component 5, and the cleaning component 6 and the support component 5 being used in conjunction.

[0042] The supporting component 5 includes a concave bracket 51. Two connecting rods 52 are rotatably connected to both sides of the concave bracket 51. The side of the connecting rod 52 closest to the inner wall of the pickling tank 1 is rotatably connected to the pickling tank 1. Lifting components 53 are bolted to the inner wall of the concave bracket 51. The lifting components 53 are used in conjunction with the cleaning component 6. Vibration components 54 are bolted to both sides of the bottom of the concave bracket 51.

[0043] The cleaning component 6 includes a protective box 61. A swinging component 62 is bolted to the right side inside the protective box 61, and the side of the swinging component 62 closest to the concave bracket 51 is rotatably connected to the concave bracket 51. A scraping component 63 is installed inside the protective box 61, located at the top and bottom of the concave bracket 51. Pressing components 64 are bolted to both sides of the bottom of the moving platform 4. The pressing components 64 cooperate with the lifting component 53. By setting up the support component 5, the concave bracket 51 can confine the copper metal plate of the expansion valve inside the pickling tank 1. Simultaneously, the vibrating component 54 can cause the concave bracket 51 to vibrate at a certain frequency, and through the cooperation of the cleaning component 6 and the vibrating component 54, the concave bracket 51 can swing to a certain amplitude, thereby... To accelerate the dissolution of the surface oxide layer of the copper metal plate of the expansion valve under immersion in acidic solution, and to remove the dissolved oxides, allowing deeper oxides to react with the acidic solution for complete removal, the cleaning component 6, with the swing component 62, enables the concave bracket 51 and the copper metal plate of the expansion valve to swing back and forth, which can shorten the pickling time and improve cleaning efficiency. The pressing component 64, while the moving platform 4 is descending, presses against the lifting component 53, causing the lifting component 53 to lift the copper metal plate of the expansion valve to a certain height, thereby facilitating the scraping component 63 to scrape off the oxides already removed from the surface of the copper metal plate of the expansion valve, exposing the deeper oxides to the acidic solution and enhancing the cleaning effect.

[0044] like Figure 3 As shown, the lifting component 53 includes an elastic bladder 531, which is respectively bolted to both sides of the top of the pickling tank 1. Fixed cylinders 532 are bolted to the four corners of the inner wall of the concave bracket 51. Connecting pipes 533 connect adjacent fixed cylinders 532. Elastic conveying pipes 534 are connected to opposite sides of the two connecting pipes 533. The side of the elastic conveying pipe 534 closest to the elastic bladder 531 is connected to the elastic bladder 531. A lifting column 535 is slidably connected inside the fixed cylinder 532. A push plate 536 is bolted to the bottom of the lifting column 535. A return spring 537 is bolted to the bottom of the push plate 536, and the bottom of the return spring 537 is connected to the fixed cylinder 532. The inner wall is bolted, and the top of the lifting column 535 is bolted with a limiting corner block 538. By setting the lifting component 53, when the moving platform 4 drives the pressing component 64 to descend, the pressing component 64 will press against the elastic bladder 531, causing it to deform. Therefore, the gas pre-stored inside will be transported to the connecting pipe 533 through the elastic conveying pipe 534, and then to each fixed cylinder 532 through the connecting pipe 533. Therefore, under the action of compressed gas, the push plate 536 will be lifted, so that the lifting column 535 will lift the copper metal plate of the expansion valve to a certain height, thereby pushing the copper metal plate of the expansion valve out of the interior of the concave bracket 51, which facilitates the scraping component 63 to remove the oxides already removed from its surface.

[0045] like Figure 4As shown, the vibrating element 54 includes a mounting block 541, a drive box 542 is bolted inside the mounting block 541, and protective shells 543 are bolted to the front and rear sides of the drive box 542. The output end of the drive box 542 extends into the interior of the protective shell 543, and an eccentric block 544 is sleeved on the surface of the conveying end of the drive box 542. By setting the vibrating element 54, the drive box 542 drives the eccentric block 544 to rotate inside the protective shell 543, causing the eccentric block 544 to vibrate due to the centrifugal force of high-speed rotation. This causes the copper metal plate of the expansion valve to vibrate, thereby accelerating the dissolution rate of the surface oxide layer and removing the dissolved oxide, thus improving the oxide processing efficiency.

[0046] like Figure 2 As shown, the top and bottom of the connecting rod 52 are rotatably connected to the connecting frame 7. The side of the connecting frame 7 closest to the inner wall of the concave bracket 51 and the pickling tank 1 is bolted to the concave bracket 51 and the pickling tank 1 respectively. By setting the connecting frame 7, the connecting rod 52 can be rotatably connected to the concave bracket 51 and the pickling tank 1 respectively, thereby facilitating the concave bracket 51 to swing to a certain extent.

[0047] like Figure 6 As shown, the swinging component 62 includes a support plate 621, which is bolted to the inside of the protective box 61. A turntable 622 is rotatably connected to the top of the support plate 621. A push column 623 is welded to the bottom of the turntable 622 near the inner wall of the protective box 61. An upper rocker arm 624 is sleeved on the surface of the push column 623. The top of the upper rocker arm 624 has an active hole 625 that cooperates with the push column 623. A rotating column 627 is bolted to the bottom of the upper rocker arm 624. The rotating column 627 is rotatably connected to the support plate 621 near the support plate 621. A lower rocker arm 626 is slidably connected inside the upper rocker arm 624. The bottom of the lower rocker arm 626 extends to the bottom of the protective box 61 and is rotatably connected to the concave bracket 51 on the side near the concave bracket 51. By setting the swing member 62, the turntable 622 rotates on the top of the support plate 621, causing the push column 623 to rotate synchronously. When the push column 623 moves in the movable hole 625, it will push the upper rocker arm 624 to rotate around the rotating column 627 as the axis. Therefore, the swing of the upper rocker arm 624 drives the lower rocker arm 626 to swing, thus driving the concave bracket 51 to swing at a certain amplitude, thereby accelerating the dissolution rate of the surface oxide layer and removing the dissolved oxide.

[0048] like Figure 6As shown, a rotating shaft 8 is bolted to one side of each of the two turntables 622. A dual-axis motor 9 is bolted to the right side inside the protective box 61. The side of the dual-axis motor 9 closest to the rotating shaft 8 is bolted to the rotating shaft 8. By setting the rotating shaft 8 and the dual-axis motor 9, the rotating shaft 8 drives the corresponding turntable 622 to rotate under the drive of the dual-axis motor 9, so that the front and rear turntables 622 can rotate synchronously, thereby allowing the concave bracket 51 to swing stably.

[0049] like Figure 6 As shown, the scraper 63 includes two reciprocating moving parts 631, which are disposed on the front and rear sides inside the protective box 61. A connecting plate 632 is bolted between the opposite sides of the two reciprocating moving parts 631. A synchronizing rod 633 is bolted inside the connecting plate 632. The bottom of the synchronizing rod 633 extends to the bottom of the protective box 61 and is bolted to an upper scraper 634. A first follower plate 635 is bolted to both the front and rear sides of the upper scraper 634. A second follower plate 636 is disposed inside the first follower plate 635. A lower scraper 637 is bolted between the opposite sides of the two second follower plates 636, and the second follower plates 636 are connected to the concave bracket. The sliding connection 51 has the upper scraper 634 and lower scraper 637 located at the top and bottom of the concave bracket 51, respectively. By setting the scraping component 63, the reciprocating moving part 631 is driven by the external driving device, so that the connecting plate 632 drives the upper scraper 634 to move through the synchronizing plate 633, and drives the lower scraper 637 to move synchronously through the first follower plate 635 and the second follower plate 636. This allows both to remove the oxides that have been removed from the surface of the copper metal plate of the expansion valve. It can expose the deep oxides to the acidic solution, allowing the deep oxides to come into contact with the acidic solution, thereby completely removing the oxides and enhancing the cleaning effect.

[0050] like Figure 7As shown, the reciprocating moving part 631 includes a main shaft 6311, which is rotatably connected to the inside of the protective box 61. A bidirectional moving groove 6312 is annularly formed on the surface of the main shaft 6311. A moving block 6313 is sleeved on the surface of the main shaft 6311, and the side of the moving block 6313 closest to the connecting plate 632 is bolted to the connecting plate 632. A fixed rod 6314 is rotatably connected to the top of the inner wall of the moving block 6313, and a sliding block 6315 is bolted to the bottom of the fixed rod 6314. The sliding block 6315 is slidably connected inside the bidirectional moving groove 6312. The reciprocating moving part 631 drives the main shaft 6311 to rotate via an external drive device. Simultaneously, under the action of the bidirectional moving groove 6312, the sliding block 6315 moves inside the bidirectional moving groove 6312, driving the moving block 6313 to move. When the sliding block 6315 moves to the other end of the main shaft 6311, under the action of the bidirectional moving groove 6312, the sliding block 6315 will move in the opposite direction, thereby achieving the effect of driving the upper scraper 634 and the lower scraper 637 to reciprocate and remove oxides from the copper metal plate of the expansion valve.

[0051] like Figure 8 As shown, the pressing component 64 includes a pressing plate 641. Sliding columns 642 are provided on both the front and rear sides of the pressing plate 641. The top of the sliding column 642 extends to the top of the pressing plate 641 and is bolted to the moving platform 4. A pressing spring 643 is sleeved on the surface of the sliding column 642. The pressing spring 643 is bolted to the pressing plate 641 and the moving platform 4 on the side closest to them. The pressing plate 641 works in conjunction with the elastic bladder 531. By providing the pressing component 64, the sliding column 642 and the pressing plate 641 move synchronously as the moving platform 4 descends, causing the pressing plate 641 to compress the elastic bladder 531. Under the elastic force of the pressing spring 643, the pressure exerted by the pressing plate 641 on the elastic bladder 531 is increased, causing the elastic bladder 531 to deform and change its internal volume, thus expelling the internal gas.

[0052] like Figure 1 As shown, hydraulic cylinders 10 are bolted to both sides of the top of the support platform 2, and the bottom of the hydraulic cylinders 10 extends to the bottom of the support platform 2 and is bolted to the moving platform 4. By setting the hydraulic cylinders 10, the moving platform 4 can be easily moved, thereby realizing or relieving the work of removing oxides from the surface of the copper metal plate of the expansion valve by the scraper 63.

[0053] Brief description of the usage process: The copper metal plate material of the expansion valve is placed inside the concave bracket 51 and contacts the lifting column 535, so that the limiting corner block 538 contacts it. Then, an acidic solution is injected, and the rotating shaft 8 is driven to rotate by the dual-axis motor 9. The rotating shaft 8 drives the corresponding turntable 622 to rotate, so that the front and rear turntables 622 can rotate synchronously on the top of the support plate 621, which drives the push column 623 to rotate synchronously. When the push column 623 moves in the movable hole 625, it will push the upper rocker arm 624 to rotate around the rotating column 627. Therefore, the swing of the upper rocker arm 624 drives the lower rocker arm 626 to swing, so as to drive the concave bracket 51 to swing to a certain extent, thereby enabling the copper expansion valve to move. The copper sheet moves in the acidic solution, accelerating the dissolution rate. During this oscillation, the lower scraper 637 contacts the copper sheet, scraping away the dissolved oxides at its bottom. The drive box 542 drives the eccentric block 544 to rotate inside the protective shell 543, causing the eccentric block 544 to vibrate due to the centrifugal force of high-speed rotation. This vibrates the copper sheet of the expansion valve, further accelerating the dissolution of the surface oxide layer and removing the dissolved oxides, thus improving oxide processing efficiency. After a certain dissolution time, the hydraulic cylinder 10 drives the moving platform 4 to move downwards on the guide post 3, simultaneously causing the pressure plate 641 to contact and compress the elastic bladder 531, which is then compressed by the pressure spring 643. Under the elastic force, the pressure of the pressure plate 641 on the elastic bladder 531 can be increased, causing the elastic bladder 531 to change its internal volume due to deformation. Therefore, the gas stored inside will be transported to the connecting pipe 533 through the elastic conveying pipe 534, and then to each fixed cylinder 532 through the connecting pipe 533. Therefore, under the action of compressed gas, the push plate 536 will be lifted, thereby causing the lifting column 535 to lift the copper metal plate of the expansion valve to a certain height. At the same time as the moving platform 4 descends, the upper rocker arm 624 moves on the surface of the lower rocker arm 626, and the first follower plate 635 moves on the surface of the second follower plate 636, so that the upper scraper 634 can descend to contact the copper metal plate, and then the spindle is driven by the external drive device. Rotation of 6311 causes the main shaft 6311 to rotate. Simultaneously, under the action of the bidirectional moving groove 6312, the sliding block 6315 moves inside the bidirectional moving groove 6312, driving the moving block 6313 to move as well. Then, through the connecting plate 632 and the synchronizing rod 633, the upper scraper 634 removes the dissolved oxides from the copper metal plate. When the sliding block 6315 moves to the other end of the main shaft 6311, under the action of the bidirectional moving groove 6312, the sliding block 6315 moves in the opposite direction, causing the upper scraper 634 to scrape it back and forth. Finally, after the copper metal plate has undergone pickling, it is taken out for cleaning, drying, and other steps, thus completing the oxide treatment process of the copper metal plate in the expansion valve production.

[0054] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A surface oxide treatment device for producing expansion valves, comprising an acid pickling tank (1), characterized in that: The pickling tank (1) is provided with a support platform (2) at the top. The four corners of the bottom of the support platform (2) are bolted with guide posts (3). The bottom of the guide posts (3) is bolted to the pickling tank (1). The bottom of the support platform (2) is provided with a moving platform (4). The moving platform (4) is slidably connected to the surface of the guide posts (3). The pickling tank (1) is provided with a support component (5). The bottom of the moving platform (4) is bolted with a cleaning component (6). One end of the cleaning component (6) is rotatably connected to the support component (5). The cleaning component (6) and the support component (5) are used together. The supporting component (5) includes a concave bracket (51), and two connecting rods (52) are rotatably connected to both sides of the concave bracket (51). The connecting rods (52) are rotatably connected to the pickling tank (1) on the side near the inner wall of the pickling tank (1). Lifting members (53) are bolted to the inner wall of the concave bracket (51). The lifting members (53) are used in conjunction with the cleaning component (6). Vibration members (54) are bolted to both sides of the bottom of the concave bracket (51). The cleaning assembly (6) includes a protective box (61). A swinging component (62) is bolted to the right side inside the protective box (61), and the swinging component (62) is rotatably connected to the concave bracket (51) on the side near the concave bracket (51). A scraping component (63) is provided inside the protective box (61). The scraping component (63) is located at the top and bottom of the concave bracket (51). Pressing components (64) are bolted to both sides of the bottom of the moving platform (4). The pressing components (64) are used in conjunction with the lifting component (53). The lifting component (53) includes an elastic bladder (531), which is bolted to both sides of the top of the pickling tank (1). A fixing cylinder (532) is bolted to each of the four corners of the inner wall of the concave bracket (51). A connecting pipe (533) connects two adjacent fixing cylinders (532). An elastic conveying pipe (534) connects to the opposite side of each of the two connecting pipes (533). The elastic conveying pipe (534) is close to the elastic bladder. One side of the body (531) is connected to the elastic bladder (531). A lifting column (535) is slidably connected inside the fixed cylinder (532). A push plate (536) is bolted to the bottom of the lifting column (535). A return spring (537) is bolted to the bottom of the push plate (536). The bottom of the return spring (537) is bolted to the inner wall of the fixed cylinder (532). A limit block (538) is bolted to the top of the lifting column (535). The vibrating element (54) includes a mounting block (541), a drive box (542) is bolted inside the mounting block (541), a protective shell (543) is bolted to the front and rear sides of the drive box (542), the output end of the drive box (542) extends into the interior of the protective shell (543), and an eccentric block (544) is sleeved on the surface of the conveying end of the drive box (542). The swinging component (62) includes a support plate (621), which is bolted to the inside of the protective box (61). A turntable (622) is rotatably connected to the top of the support plate (621). A push column (623) is welded to the bottom of the turntable (622) near the inner wall of the protective box (61). An upper rocker arm (624) is sleeved on the surface of the push column (623). The top of the upper rocker arm (624) has an opening that connects to the push column (623). The upper rocker arm (624) is fitted with a movable hole (625). A rotating column (627) is bolted to the bottom inside the upper rocker arm (624). The rotating column (627) is rotatably connected to the support plate (621) on the side near the support plate (621). A lower rocker arm (626) is slidably connected inside the upper rocker arm (624). The bottom of the lower rocker arm (626) extends to the bottom of the protective box (61) and is rotatably connected to the concave bracket (51) on the side near the concave bracket (51).

2. The surface oxide treatment equipment for producing expansion valves according to claim 1, characterized in that: The top and bottom of the surface of the connecting rod (52) are rotatably connected to the connecting frame (7), and the connecting frame (7) is bolted to the concave bracket (51) and the pickling tank (1) respectively on the side near the inner wall of the concave bracket (51) and the pickling tank (1).

3. The surface oxide treatment equipment for producing expansion valves according to claim 1, characterized in that: Two turntables (622) are each bolted to a rotating shaft (8) on one side opposite to each other. A dual-axis motor (9) is bolted to the right side inside the protective box (61). The side of the dual-axis motor (9) closest to the rotating shaft (8) is bolted to the rotating shaft (8).

4. The surface oxide treatment equipment for producing expansion valves according to claim 1, characterized in that: The scraping component (63) includes two reciprocating moving parts (631), which are disposed on the front and rear sides inside the protective box (61). A connecting plate (632) is bolted between the opposite sides of the two reciprocating moving parts (631). A synchronizing rod (633) is bolted inside the connecting plate (632). The bottom of the synchronizing rod (633) extends to the bottom of the protective box (61) and is bolted with an upper scraper (634). A first follower plate (635) is bolted to both the front and rear sides of the upper scraper (634). A second follower plate (636) is disposed inside the first follower plate (635). A lower scraper (637) is bolted between the opposite sides of the two second follower plates (636). The second follower plate (636) is slidably connected to the concave bracket (51). The upper scraper (634) and the lower scraper (637) are respectively located at the top and bottom of the concave bracket (51).

5. The surface oxide treatment equipment for producing expansion valves according to claim 4, characterized in that: The reciprocating moving part (631) includes a main shaft (6311), which is rotatably connected to the inside of the protective box (61). The surface of the main shaft (6311) is provided with a bidirectional moving groove (6312) in an annular shape. A moving block (6313) is sleeved on the surface of the main shaft (6311), and the side of the moving block (6313) near the connecting plate (632) is bolted to the connecting plate (632). A fixed rod (6314) is rotatably connected to the top of the inner wall of the moving block (6313), and a sliding block (6315) is bolted to the bottom of the fixed rod (6314). The sliding block (6315) is slidably connected inside the bidirectional moving groove (6312).

6. The surface oxide treatment equipment for producing expansion valves according to claim 1, characterized in that: The pressing member (64) includes a pressing plate (641). The front and rear sides of the pressing plate (641) are provided with sliding columns (642). The top of the sliding column (642) extends to the top of the pressing plate (641) and is bolted to the moving platform (4). A pressing spring (643) is sleeved on the surface of the sliding column (642). The pressing spring (643) is bolted to the pressing plate (641) and the moving platform (4) respectively on the side close to the pressing plate (641) and the moving platform (4). The pressing plate (641) is used in conjunction with the elastic bladder (531).

7. The surface oxide treatment equipment for producing expansion valves according to claim 1, characterized in that: Hydraulic cylinders (10) are bolted to both sides of the top of the support platform (2), and the bottom of the hydraulic cylinders (10) extends to the bottom of the support platform (2) and is bolted to the moving platform (4).

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