Continuous diode pickling apparatus

Abstract

The application provides a continuous diode pickling device, and relates to the technical field of diode production, which comprises a pickling tank, a top frame fixedly connected to the top of the pickling tank, two lifting frames installed in the pickling tank and connected to the top frame, four hydraulic cylinders connected to the outside of the pickling tank, two hydraulic cylinders connected to the lifting frames, the hydraulic cylinders connected to a three-position four-way valve through pipelines, a corrosion-resistant net bag placed in the lifting frame, a reflux pipe connected to the bottom of the pickling tank, and a circulating pump installed on the pipeline of the reflux pipe. The two lifting frames are used for alternating lifting movement, the two corrosion-resistant net bags are used for driving the diodes in the two corrosion-resistant net bags to alternately realize pickling treatment operation, and the diode pickling efficiency is effectively improved. The diode pickling device adopts a single lifting platform design, the diodes are placed in the lifting platform for pickling operation, the feeding and discharging operation is manually performed, the feeding and discharging time is relatively long, and the diode pickling efficiency is difficult to effectively improve.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of diode production, and particularly relates to a continuous diode pickling device. BACKGROUND

[0002] A diode is an electronic device made of semiconductor material, which has a unidirectional conduction property, that is, when a positive voltage is applied to the anode of the diode, the diode is turned on, and when a reverse voltage is applied to the anode and the cathode, the diode is turned off. Therefore, the turn-on and turn-off of the diode are equivalent to the turn-on and turn-off of a switch. During the production and processing of diodes, the diodes need to be pickled to remove surface contaminants and oxide layers.

[0003] Currently, the existing diode pickling device mostly adopts a single lifting platform design, and the diodes are placed in the lifting platform for pickling operation. Manual feeding and discharging operation takes a long time, which makes it difficult to effectively improve the diode pickling efficiency. Moreover, after a period of pickling operation, the pickling liquid contains a large amount of solid impurities, and workers need to replace the pickling liquid, which is not only cumbersome, but also affects the progress of diode pickling. SUMMARY

[0004] The present application relates to a continuous diode pickling device. When one of the corrosion-resistant net bags is lifted to the top end, the other group of hydraulic cylinders drives the lifting frame to move downward, so that the other corrosion-resistant net bag is immersed in the acid pickling liquid in the acid pickling tank to perform the next batch of diode pickling operation, thereby ensuring the continuity of the diode pickling operation, effectively improving the diode pickling efficiency, and intercepting the solid impurities contained in the pickling liquid by the impurity remover to ensure the cleanliness of the pickling liquid.

[0005] In a first aspect, the present application provides a continuous diode pickling device, which specifically comprises: an acid pickling tank, a top frame, a lifting frame, a hydraulic cylinder, a corrosion-resistant net bag, a reflux pipe, a circulating pump, an impurity remover, and a liquid inlet pipe; the top of the acid pickling tank is fixedly connected with the top frame, and two lifting frames are installed inside the acid pickling tank and connected with the top frame; four hydraulic cylinders are connected outside the acid pickling tank, the lifting frame is connected with two hydraulic cylinders, and the hydraulic cylinder is connected with a three-position four-way valve through a pipeline; the corrosion-resistant net bag is placed inside the lifting frame; the bottom of the acid pickling tank is connected with the reflux pipe, the circulating pump is installed on the pipeline of the reflux pipe, and the impurity remover is connected with the top end of the reflux pipe; the liquid inlet pipe is connected outside the acid pickling tank and connected with the impurity remover, and the height of the impurity remover is higher than the liquid level inside the acid pickling tank.

[0006] Further, two acid pickling tanks are symmetrically arranged inside the acid pickling tank, the lifting frame is slidingly connected in the acid pickling tank, two ear plates are symmetrically arranged on the top of the lifting frame, two movable holes are symmetrically arranged on the top of the top frame, and the ear plates are slidingly connected in the movable holes.

[0007] Further, the cylinder body of the hydraulic cylinder is fixedly connected with the pickling tank, and the piston rod of the hydraulic cylinder is fixedly connected with the ear plate, when one lifting frame is lifted to the top end, the other lifting frame falls to the bottom end.

[0008] Further, the pickling tank is provided with a liquid inlet at the top, the liquid inlet surrounds the top of the pickling tank, the liquid inlet is communicated with the liquid outlet end of the impurity remover through a liquid inlet pipe, and the pickling tank is provided with a liquid outlet at the bottom, the liquid outlet is located at the center of the bottom of the pickling tank, and the liquid outlet is communicated with the liquid inlet end of the impurity remover through a reflux pipe.

[0009] Further, the impurity remover is composed of a main body, a filter cartridge, a sealing cover, a rubber ring, a small spring, a movable ring, a T-shaped pin and a large spring, the filter cartridge is located in the main body, the outside of the filter cartridge is communicated with the liquid inlet end of the impurity remover, and the inside of the filter cartridge is communicated with the liquid outlet end of the impurity remover.

[0010] Further, the sealing cover is connected to the top of the main body, the inside of the main body is provided with an annular groove, the bottom of the sealing cover is inserted into the annular groove, the rubber ring is located in the annular groove, the bottom of the sealing cover is in contact with the rubber ring, the top of the small spring is in contact with the inside of the sealing cover, and the bottom of the small spring is in contact with the top of the filter cartridge.

[0011] Further, the top of the main body is symmetrically provided with a groove, the outside of the sealing cover is symmetrically provided with a protrusion, the protrusion is inserted into the groove, the top of the main body is symmetrically provided with a guide hole, the outside of the sealing cover is symmetrically provided with a limiting groove, the guide hole is communicated with the limiting groove, the T-shaped pin is slidably connected into the guide hole, and the end of the T-shaped pin is inserted into the limiting groove.

[0012] Further, the movable ring is slidably connected with the main body, the outside of the main body is symmetrically provided with a positioning block, the inside of the movable ring is symmetrically provided with a sliding hole, the positioning block is slidably connected into the sliding hole, the large spring is sleeved outside the main body, the bottom of the large spring is in contact with the main body, and the top of the large spring is in contact with the bottom of the movable ring.

[0013] Further, the top of the movable ring is symmetrically provided with an inclined hole, the opposite ends of the T-shaped pin are slidably connected into the inclined hole, when the movable ring moves to the bottom end, the T-shaped pin moves to the outer end, and when the movable ring moves to the top end, the T-shaped pin moves to the inner end.

[0014] The continuous diode pickling device has the following beneficial effects:

[0015] The diode is placed in the corrosion-resistant mesh bag, the lifting frame is driven to move downward by the hydraulic cylinder, the corrosion-resistant mesh bag is gradually immersed in the pickling solution in the pickling tank, the pollutants and the oxide layer on the surface of the diode are removed, after the pickling of the diode is completed, the lifting frame is driven to move upward by the hydraulic cylinder, the corrosion-resistant mesh bag is moved to the top end, and then the corrosion-resistant mesh bag is taken out from the lifting frame by the staff, when the corrosion-resistant mesh bag is lifted to the top end, the lifting frame is driven to move downward by another set of hydraulic cylinders, so that another corrosion-resistant mesh bag is immersed in the pickling solution in the pickling tank, and the next batch of diode pickling operation is carried out, the continuity of the diode pickling operation is ensured, and the diode pickling efficiency is effectively improved.

[0016] In addition, the pickling solution in the pickling tank enters the impurity remover through the reflux pipe, the solid impurities contained in the pickling solution are intercepted through the impurity remover, the cleanliness of the pickling solution is ensured, the pickling solution flows into the pickling tank again through the liquid inlet pipe, the circulation of the pickling solution in the pickling tank is improved, the pickling effect of the pickling solution is ensured, when the sealing cover is connected to the top of the main body, the small spring is compressed under the action of force, the filter cartridge is in close contact with the main body under the action of the thrust of the small spring, the stability of the connection between the filter cartridge and the main body is ensured, and the pickling solution entering the inside of the filter cartridge is filtered, so that the solid impurities are intercepted outside the filter cartridge.

[0017] In addition, the convex block and the groove are inserted and matched, the guide hole and the limiting groove can be accurately communicated, the positioning block and the sliding hole are slidingly matched, the movable ring is moved and guided, and the large spring has the elastic reset effect on the movable ring; when the guide hole and the limiting groove are in the communication state, the movable ring moves upward under the action of the thrust of the large spring, the movable ring drives the T-shaped pin to move inward, the end of the T-shaped pin is inserted into the limiting groove, the sealing cover is fixed, and the firmness of the connection between the sealing cover and the main body is ensured.

[0018] When more solid impurities accumulate outside the filter cartridge, the movable ring is moved downward, the large spring is contracted under the action of force, the movable ring drives the T-shaped pin to move outward, the end of the T-shaped pin is separated from the limiting groove, the sealing cover is in contact and locked, and then the filter cartridge can be taken out from the inside of the main body for cleaning, so that the maintenance is more convenient.

[0019] Other advantages, objects, and features of the present application will be apparent from the following description, and will be appreciated by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0021] The drawings in the following description only relate to some embodiments of the present application, and are not limited to the present application.

[0022] In the drawings:

[0023] Figure 1 The overall top shaft side structure schematic diagram of the present application is shown;

[0024] Figure 2 The overall bottom shaft side structure schematic diagram of the present application is shown;

[0025] Figure 3 The pickling tank shaft side structure schematic diagram of the present application is shown;

[0026] Figure 4 The lifting frame and corrosion-resistant mesh bag split structure schematic diagram of the present application is shown;

[0027] Figure 5 The reflux pipe, circulating pump, impurity remover and liquid inlet pipe connection structure schematic diagram of the present application is shown;

[0028] Figure 6 The impurity remover internal section structure schematic diagram of the present application is shown;

[0029] Figure 7 The main body section structure schematic diagram of the present application is shown;

[0030] Figure 8 The sealing cover shaft side structure schematic diagram of the present application is shown;

[0031] Figure 9 The movable ring and T-shaped pin split structure schematic diagram of the present application is shown.

[0032] List of reference signs

[0033] 1, pickling tank; 101, pickling groove; 102, liquid inlet; 103, liquid outlet; 2, top frame; 201, movable hole; 3, lifting frame; 301, ear plate; 4, hydraulic cylinder; 5, corrosion-resistant mesh bag; 6, reflux pipe; 7, circulating pump; 8, impurity remover; 81, main body; 8101, ring groove; 8102, recess; 8103, guide hole; 8104, positioning block; 82, filter cartridge; 83, sealing cover; 8301, protrusion; 8302, limiting groove; 84, rubber ring; 85, small spring; 86, movable ring; 8601, sliding hole; 8602, inclined hole; 87, T-shaped pin; 88, large spring; 9, liquid inlet pipe. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] Embodiment one: please refer to Figures 1 to 9 :

[0036] The application provides a continuous diode pickling device, which comprises a pickling tank 1, a top frame 2, lifting frames 3, hydraulic cylinders 4, corrosion-resistant net bags 5, reflux pipes 6, circulating pumps 7, impurity removers 8 and liquid inlet pipes 9. The top frame 2 is fixedly connected to the top of the pickling tank 1, two lifting frames 3 are arranged in the pickling tank 1, and the lifting frames 3 are connected with the top frame 2. Four hydraulic cylinders 4 are connected to the outside of the pickling tank 1, the lifting frames 3 are connected with two hydraulic cylinders 4, the hydraulic cylinders 4 are connected with a three-position four-way valve through pipelines, the corrosion-resistant net bags 5 are arranged in the lifting frames 3, the reflux pipes 6 are connected to the bottom of the pickling tank 1, the circulating pumps 7 are arranged on the pipelines of the reflux pipes 6, the impurity removers 8 are connected to the top ends of the reflux pipes 6, the liquid inlet pipes 9 are connected to the outside of the pickling tank 1, the liquid inlet pipes 9 are connected with the impurity removers 8, and the height of the impurity remover 8 is higher than the liquid level in the pickling tank 1. Two pickling grooves 101 are arranged in the pickling tank 1 in a symmetrical mode, the lifting frames 3 are slidably connected in the pickling grooves 101, two ear plates 301 are arranged on the top of the lifting frames 3 in a symmetrical mode, two movable holes 201 are arranged on the top of the top frame 2 in a symmetrical mode, and the ear plates 301 are slidably connected in the movable holes 201. The cylinder bodies of the hydraulic cylinders 4 are fixedly connected with the pickling tank 1, the piston rods of the hydraulic cylinders 4 are fixedly connected with the ear plates 301, one of the lifting frames 3 is lifted to the top end, and the other lifting frame 3 falls to the bottom end. When the diodes are arranged in the corrosion-resistant net bags 5, the lifting frames 3 are driven by the hydraulic cylinders 4 to move downwards, the corrosion-resistant net bags 5 are gradually immersed in the pickling solution in the pickling tank 1, the pollutants and the oxide layers on the surfaces of the diodes are removed, the lifting frames 3 are driven by the hydraulic cylinders 4 to move upwards after the diodes are pickled, the corrosion-resistant net bags 5 are moved to the top end, and the corrosion-resistant net bags 5 are taken out from the lifting frames 3 by the staff. When the corrosion-resistant net bags 5 are lifted to the top end, the lifting frames 3 are driven by the other hydraulic cylinders 4 to move downwards, the other corrosion-resistant net bags 5 are immersed in the pickling solution in the pickling tank 1, the next batch of diodes is pickled, the continuity of the diode pickling operation is ensured, and the diode pickling efficiency is effectively improved.

[0037] In the embodiment of the application, the pickling tank 1 is provided with a liquid inlet 102, the liquid inlet 102 surrounds the top of the pickling groove 101, the liquid inlet 102 is in communication with the liquid outlet end of the impurity remover 8 through the liquid inlet pipe 9, the pickling tank 1 is provided with a liquid outlet 103, the liquid outlet 103 is located at the center of the bottom of the pickling groove 101, and the liquid outlet 103 is in communication with the liquid inlet end of the impurity remover 8 through the reflux pipe 6.

[0038] According to the technical scheme, the pickling solution in the pickling tank 1 enters the impurity remover 8 through the reflux pipe 6, the solid impurities contained in the pickling solution are intercepted by the impurity remover 8, the cleanliness of the pickling solution is ensured, the pickling solution flows into the pickling tank 1 again through the liquid inlet pipe 9, the circulation of the pickling solution in the pickling tank 1 is improved, the flowability of the pickling solution is improved, and the pickling effect of the pickling solution is ensured.

[0039] In the embodiment two, on the basis of the embodiment one, the impurity remover 8 is composed of a main body 81, a filter cartridge 82, a sealing cover 83, a rubber ring 84, a small spring 85, a movable ring 86, a T-shaped pin 87 and a large spring 88, the filter cartridge 82 is located in the main body 81, the outside of the filter cartridge 82 is communicated with the liquid inlet end of the impurity remover 8, the inside of the filter cartridge 82 is communicated with the liquid outlet end of the impurity remover 8, the sealing cover 83 is connected to the top of the main body 81, the inside of the main body 81 is provided with a ring groove 8101, the bottom of the sealing cover 83 is inserted into the ring groove 8101, the rubber ring 84 is located in the ring groove 8101, the bottom of the sealing cover 83 is in contact with the rubber ring 84, the top of the small spring 85 is in contact with the inner side of the sealing cover 83, and the bottom of the small spring 85 is in contact with the top of the filter cartridge 82.

[0040] By adopting the technical scheme, when the sealing cover 83 is connected to the top of the main body 81, the small spring 85 is compressed under force, the filter cartridge 82 is in close contact with the main body 81 under the influence of the thrust of the small spring 85, the stability of the connection between the filter cartridge 82 and the main body 81 is ensured, and the filter cartridge 82 filters the pickling liquid entering the inside, so that the solid impurities are intercepted outside the filter cartridge 82.

[0041] In the embodiment, the top of the main body 81 is symmetrically provided with a groove 8102, the outside of the sealing cover 83 is symmetrically provided with a protrusion 8301, the protrusion 8301 is inserted into the groove 8102, the top of the main body 81 is symmetrically provided with a guide hole 8103, the outside of the sealing cover 83 is symmetrically provided with a limiting groove 8302, the guide hole 8103 is communicated with the limiting groove 8302, the T-shaped pin 87 is slidingly connected into the guide hole 8103, the end of the T-shaped pin 87 is inserted into the limiting groove 8302, the movable ring 86 is slidingly connected with the main body 81, the outside of the main body 81 is symmetrically provided with a positioning block 8104, the inside of the movable ring 86 is symmetrically provided with a sliding hole 8601, the positioning block 8104 is slidingly connected into the sliding hole 8601, the large spring 88 is sleeved outside the main body 81, the bottom of the large spring 88 is in contact with the main body 81, the top of the large spring 88 is in contact with the bottom of the movable ring 86, the top of the movable ring 86 is symmetrically provided with an inclined hole 8602, the opposite ends of the T-shaped pin 87 are slidingly connected into the inclined hole 8602, when the movable ring 86 moves to the bottom end, the T-shaped pin 87 moves to the outer end, and when the movable ring 86 moves to the top end, the T-shaped pin 87 moves to the inner end.

[0042] The convex block 8301 is inserted into the groove 8102, so that the guide hole 8103 and the limiting groove 8302 are accurately communicated, the positioning block 8104 is slidingly matched with the sliding hole 8601, the movable ring 86 is guided to move, and the large spring 88 is used for the elastic reset effect of the movable ring 86; when the guide hole 8103 and the limiting groove 8302 are in the communication state, the movable ring 86 is affected by the thrust of the large spring 88 and moves upward, the movable ring 86 drives the T-shaped pin 87 to move inward, the end of the T-shaped pin 87 is inserted into the limiting groove 8302, the sealing cover 83 is fixed, and the firmness of the connection between the sealing cover 83 and the main body 81 is guaranteed; when more solid impurities are accumulated outside the filter cartridge 82, the movable ring 86 is moved downward, the large spring 88 is contracted under stress, the movable ring 86 drives the T-shaped pin 87 to move outward, the end of the T-shaped pin 87 is separated from the limiting groove 8302, the sealing cover 83 is contacted and locked, and the filter cartridge 82 can be taken out from the inside of the main body 81 for cleaning, so that the maintenance is more convenient.

[0043] The working principle of the embodiment is as follows: first, when the diode is placed in the corrosion-resistant mesh pocket 5, the hydraulic cylinder 4 drives the lifting frame 3 to move downward, so that the corrosion-resistant mesh pocket 5 gradually immerses in the pickling solution in the pickling tank 1 to remove the contaminants and oxide layer on the surface of the diode; after the diode is pickled, the hydraulic cylinder 4 drives the lifting frame 3 to move upward, so that the corrosion-resistant mesh pocket 5 moves to the top end, facilitating the worker to take out the corrosion-resistant mesh pocket 5 from the lifting frame 3; when the corrosion-resistant mesh pocket 5 is lifted to the top end, the other group of hydraulic cylinders 4 drives the lifting frame 3 to move downward, so that the other corrosion-resistant mesh pocket 5 immerses in the pickling solution in the pickling tank 1 to perform the next batch of diode pickling operation, ensuring the continuity of the diode pickling operation; the circulating pump 7 operates, the pickling solution in the pickling tank 1 enters the impurity remover 8 through the return pipe 6, the solid impurities contained in the pickling solution are intercepted through the impurity remover 8, the cleanliness of the pickling solution is ensured, the pickling solution flows into the pickling tank 1 again through the liquid inlet pipe 9, the pickling solution in the pickling tank 1 circulates and flows, and the flowability of the pickling solution is improved; the sealing cover 83 is connected to the top of the main body 81, the convex block 8301 is inserted and matched with the recess 8102, the guide hole 8103 and the limiting groove 8302 can be accurately communicated, the movable ring 86 moves upward under the influence of the pushing force of the large spring 88, the movable ring 86 drives the T-shaped pin 87 to move inward, the end of the T-shaped pin 87 is inserted into the limiting groove 8302, the sealing cover 83 is fixed, and the firmness of the connection between the sealing cover 83 and the main body 81 is ensured; at this time, the small spring 85 is compressed under stress, the filter cartridge 82 is in close contact with the main body 81 under the influence of the pushing force of the small spring 85, and the stability of the connection between the filter cartridge 82 and the main body 81 is ensured, the pickling solution entering the inside is filtered through the filter cartridge 82, and the solid impurities are intercepted outside the filter cartridge 82; when more solid impurities accumulate outside the filter cartridge 82, the movable ring 86 is moved downward, the large spring 88 is contracted under stress, the movable ring 86 drives the T-shaped pin 87 to move outward, the end of the T-shaped pin 87 is separated from the limiting groove 8302, the sealing cover 83 is in contact and locked, and the filter cartridge 82 can be taken out from the inside of the main body 81 for cleaning.

[0044] In this document, the following points need to be noted:

[0045] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0046] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0047] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present disclosure, which should be covered in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A continuous diode pickling apparatus comprising: The acid pickling tank (1), the top frame (2), the lifting frame (3), the hydraulic cylinder (4), the corrosion-resistant net bag (5), the reflux pipe (6), the circulating pump (7), the impurity remover (8) and the liquid inlet pipe (9); characterized in that the acid pickling tank (1) is fixedly connected with the top frame (2) at the top, two lifting frames (3) are installed in the acid pickling tank (1), and the lifting frames (3) are connected with the top frame (2); four hydraulic cylinders (4) are connected with the acid pickling tank (1), the lifting frames (3) are connected with two hydraulic cylinders (4), and the hydraulic cylinders (4) are connected with a three-position four-way valve through pipelines; the corrosion-resistant net bag (5) is placed in the lifting frame (3); the acid pickling tank (1) is connected with the reflux pipe (6) at the bottom, the circulating pump (7) is installed on the pipeline of the reflux pipe (6), and the reflux pipe (6) is connected with the impurity remover (8) at the top; the acid pickling tank (1) is connected with the liquid inlet pipe (9) outside, the liquid inlet pipe (9) is connected with the impurity remover (8), and the height of the impurity remover (8) is higher than the liquid level in the acid pickling tank (1); two acid pickling tanks (101) are symmetrically arranged in the acid pickling tank (1), the lifting frames (3) are slidingly connected in the acid pickling tanks (101), two ear plates (301) are symmetrically arranged on the top of the lifting frames (3), two movable holes (201) are symmetrically arranged on the top of the top frame (2), and the ear plates (301) are slidingly connected in the movable holes (201); the cylinder body of the hydraulic cylinder (4) is fixedly connected with the acid pickling tank (1), the piston rod of the hydraulic cylinder (4) is fixedly connected with the ear plate (301), when one of the lifting frames (3) is lifted to the topmost position, the other lifting frame (3) falls to the bottommost position; the acid pickling tank (1) is provided with a liquid inlet (102) at the top, the liquid inlet (102) surrounds the top of the acid pickling tank (101), the liquid inlet (102) is in communication with the liquid outlet end of the impurity remover (8) through the liquid inlet pipe (9), and the acid pickling tank (1) is provided with a liquid outlet (103) at the bottom, the liquid outlet (103) is located at the center of the bottom of the acid pickling tank (101), and the liquid outlet (103) is in communication with the liquid inlet end of the impurity remover (8) through the reflux pipe (6).

2. The continuous diode pickling device according to claim 1, wherein the impurity remover (8) is composed of a main body (81), a filter cartridge (82), a sealing cover (83), a rubber ring (84), a small spring (85), a movable ring (86), a T-shaped pin (87) and a large spring (88), the filter cartridge (82) is located in the main body (81), the filter cartridge (82) is in communication with the liquid inlet end of the impurity remover (8) outside, and the filter cartridge (82) is in communication with the liquid outlet end of the impurity remover (8) inside.

3. The continuous diode pickling device according to claim 2, wherein ​ The sealing cover (83) is connected to the top of the main body (81), the inside of the main body (81) is provided with an annular groove (8101), the bottom of the sealing cover (83) is inserted into the annular groove (8101), the rubber ring (84) is located in the annular groove (8101), the bottom of the sealing cover (83) is in contact with the rubber ring (84), and the top of the small spring (85) is in contact with the inner side of the sealing cover (83).

4. The continuous diode pickling device according to claim 2, characterized in that, The top of the main body (81) is symmetrically provided with a groove (8102), the outside of the sealing cover (83) is symmetrically provided with a protrusion (8301), the protrusion (8301) is inserted into the groove (8102), the top of the main body (81) is symmetrically provided with a guide hole (8103), the outside of the sealing cover (83) is symmetrically provided with a limiting groove (8302), the guide hole (8103) and the limiting groove (8302) are in communication, the T-shaped pin (87) is slidingly connected into the guide hole (8103), and the end of the T-shaped pin (87) is inserted into the limiting groove (8302).

5. The continuous diode pickling device according to claim 2, characterized in that, The movable ring (86) is slidingly connected with the main body (81), the outside of the main body (81) is symmetrically provided with a positioning block (8104), the inside of the movable ring (86) is symmetrically provided with a sliding hole (8601), the positioning block (8104) is slidingly connected into the sliding hole (8601), the large spring (88) is sleeved on the outside of the main body (81), the bottom of the large spring (88) is in contact with the main body (81), and the top of the large spring (88) is in contact with the bottom of the movable ring (86).

6. The continuous diode pickling device according to claim 2, characterized in that, The top of the movable ring (86) is symmetrically provided with an inclined hole (8602), and the opposite ends of the T-shaped pin (87) are slidingly connected into the inclined hole (8602), when the movable ring (86) moves downward to the bottom end, the T-shaped pin (87) moves to the outermost end, and when the movable ring (86) moves upward to the top end, the T-shaped pin (87) moves to the innermost end.

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