Device and method for adding oxalic acid for anodic oxidation

Abstract

A device for adding oxalic acid for anodic oxidation. The device comprises: an accommodating assembly (100), an activation assembly (200) and a lifting assembly (300). The accommodating assembly (100) comprises a process member (101) and a supplementary member (102), wherein the supplementary member (102) is arranged on the process member (101). The activation assembly (200) comprises a rotating member (201), a follower (202) and a releasing member (203), wherein the rotating member (201) is arranged on the process member (101), the follower (202) is arranged on the supplementary member (102), and the releasing member (203) is arranged on the supplementary member (102). The lifting assembly (300) comprises a pushing member (301), a jacking member (302) and a filling member (303), wherein the pushing member (301) is arranged on the rotating member (201), the jacking member (302) is arranged on the supplementary member (102), and the filling member (303) is arranged on the supplementary member (102).

Description

An apparatus and method for adding oxalic acid for anodic oxidation TECHNICAL FIELD

[0001] The present application relates to the technical field of anodic oxidation, and particularly to an apparatus for adding oxalic acid for anodic oxidation. BACKGROUND

[0002] Anodic oxidation is a technology for preparing an oxide film on a metal surface (anode) under the action of an external power supply. Aluminum is a relatively active metal, and an aluminum product is used as an anode to be placed in an electrolyte for anodic oxidation to obtain a target structure. The electrolyte plays an important role, and commonly used electrolytes include oxalic acid and phosphoric acid. The electrolyte concentration gradually decreases as the anodic oxidation proceeds, so the electrolyte needs to be replaced or solutes need to be added during the experiment.

[0003] However, in engineering practical applications, the addition of electrolyte solutes is mainly achieved by manually adding solutes, which is difficult to ensure the amount of solute added and the uniformity of dissolution. In addition, uneven electrolyte concentration will lead to uneven electric field, resulting in uneven oxide film. Moreover, manual addition of electrolyte solutes is time-consuming and laborious, and has safety problems. SUMMARY

[0004] In view of the above problems that it is difficult to ensure the amount of solute added and the uniformity of dissolution by manually adding solutes, and manual addition of electrolyte solutes is time-consuming and laborious and has safety problems, the present application is proposed.

[0005] Therefore, the present application aims to provide an apparatus and method for adding oxalic acid for anodic oxidation.

[0006] To solve the above technical problems, the present application provides the following technical scheme: an apparatus for adding oxalic acid for anodic oxidation, comprising,

[0007] The accommodation assembly comprises a process piece and a supplement piece, and the supplement piece is arranged on the process piece.

[0008] The starting assembly comprises a rotating piece, a follower, and a release piece, the rotating piece is arranged on the process piece, the follower is arranged on the supplement piece, and the release piece is arranged on the supplement piece.

[0009] The lifting assembly comprises a pushing piece, a jacking piece, and a replacement piece, the pushing piece is arranged on the rotating piece, the jacking piece is arranged on the supplement piece, and the replacement piece is arranged on the supplement piece.

[0010] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the process part comprises a reaction chamber, a stirrer, a PH detector, a liquid level detector and a water outlet pipe, and the stirrer, the PH detector, the liquid level detector and the water outlet pipe are arranged on the reaction chamber.

[0011] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the supplement part comprises an output pipe, a dissolving chamber, a stacking chamber, a water tank and a pure water pipe, the output pipe is arranged on the reaction chamber, the dissolving chamber is arranged on the output pipe, the stacking chamber and the water tank are arranged on the dissolving chamber, and the pure water pipe is arranged on the water tank.

[0012] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the rotating part comprises a motor, a rotating shaft, a first moving groove, a second moving groove, a rotating groove and a follower shaft, the motor is arranged on the reaction chamber, the rotating shaft is arranged on the motor, the first moving groove, the second moving groove and the rotating groove are arranged on the rotating shaft, and the follower shaft is arranged on the first moving groove.

[0013] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the follower part comprises a support plate, a moving groove, a connecting plate, a rotating cylinder and an auxiliary groove, the support plate is arranged on the output pipe, the moving groove is arranged on the support plate, the connecting plate is arranged on the moving groove, the rotating cylinder is arranged on the connecting plate, and the auxiliary groove is arranged on the rotating cylinder.

[0014] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the releasing part comprises an extension block, a gradient groove, a pushing column, a rotating column, a reset groove, a tension spring, a connecting block and a valve plate, the extension block is arranged on the output pipe, the gradient groove is arranged on the extension block, the pushing column is arranged on the gradient groove, the rotating column is arranged on the pushing column, the reset groove is arranged on the rotating column, the tension spring is arranged on the reset groove, the connecting block is arranged on the tension spring, and the valve plate is arranged on the rotating column.

[0015] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the pushing part comprises a pushing block, a lifting block, a lifting groove and a synchronization frame, the pushing block is arranged on the rotating shaft, the lifting block is arranged on the pushing block, the lifting groove is arranged on the lifting block, and the synchronization frame is arranged on the lifting block.

[0016] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the lifting component comprises a pushing plate, an extension plate, an inflow plate and an inflow groove, the pushing plate is arranged on the dissolving chamber, the extension plate is arranged on the pushing plate, the inflow plate is arranged on the pushing plate, and the inflow groove is arranged on the inflow plate.

[0017] As a preferred scheme of the device for adding oxalic acid for anodic oxidation, the compensating component comprises a shielding plate, a compensating plate, an extension plate and a spring, the shielding plate is arranged on the dissolving chamber, the compensating plate is arranged on the shielding plate, the extension plate is arranged on the compensating plate, and the spring is arranged on the extension plate.

[0018] The method for adding oxalic acid for anodic oxidation comprises the device for adding oxalic acid for anodic oxidation, and comprises the following steps:

[0019] The anodic oxidation reaction is carried out by placing the aluminum product in the reaction chamber.

[0020] The electrolyte consumption triggers an alarm, and the control device is started.

[0021] Finally, the reaction chamber is supplemented with electrolyte, so that the anodic oxidation reaction continues.

[0022] The device for adding oxalic acid for anodic oxidation has the following beneficial effects: the accommodating component can make the whole device build a place for anodic oxidation reaction, the starting component and the lifting component are added to design, so that the whole device can automatically dissolve and supplement the electrolyte, solve the problem that the addition of electrolyte solute mainly relies on manual addition of solute, ensure the addition amount and uniformity of the solute, prevent the problem of uneven oxidation film caused by uneven electric field due to uneven electrolyte concentration, the whole operation is time-saving and labor-saving and more safe. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0024] Fig. 1 is a schematic diagram of the overall structure of the device for adding oxalic acid for anodic oxidation.

[0025] Fig. 2 is a schematic diagram of the internal structure of the device for adding oxalic acid for anodic oxidation.

[0026] Fig. 3 is a schematic diagram of the rotating component structure of the device for adding oxalic acid for anodic oxidation.

[0027] Figure 4 is a schematic diagram of a follower structure of the device for anodic oxidation with oxalic acid according to the present application.

[0028] Figure 5 is a schematic diagram of a release structure of the device for anodic oxidation with oxalic acid according to the present application.

[0029] Figure 6 is a schematic diagram of a lifting assembly structure of the device for anodic oxidation with oxalic acid according to the present application.

[0030] Figure 7 is a schematic diagram of a jacking structure of the device for anodic oxidation with oxalic acid according to the present application.

[0031] Figure 8 is a schematic diagram of a compensating structure of the device for anodic oxidation with oxalic acid according to the present application. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0033] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details presented herein. In other instances, well-known methods have not been described in detail in order to avoid obscuring the present application. Therefore, the specific details set forth hereinafter are merely exemplary and should not be construed as limiting the scope of the present application.

[0034] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. The "in one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or selectively excluded from other embodiments.

[0035] Thirdly, the present application is described in detail in conjunction with the schematic diagrams. In the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.

[0036] Embodiment 1

[0037] Referring to Figures 1-2, a device for anodic oxidation with oxalic acid is provided in the first embodiment of the present application, which comprises a housing assembly 100, including a process piece 101 and a supplement piece 102, the supplement piece 102 is arranged on the process piece 101, and through the interaction between the process piece 101 and the supplement piece 102, the entire device is built into a place for anodic oxidation reaction.

[0038] Specifically, the process piece 101 includes a reaction chamber 101a, a stirrer 101b, a PH detector 101c, a liquid level detector 101d and a water outlet pipe 101e. The reaction chamber 101a is used for the anodic oxidation reaction of aluminum products. The reaction chamber 101a is provided with a cathode plate, an electrolyte and a wire for reaction, and other basic equipment that can perform anodic oxidation reaction. The electrolyte is oxalic acid liquid. The stirrer 101b, the PH detector 101c, the liquid level detector 101d and the water outlet pipe 101e are arranged on the reaction chamber 101a. The number of stirrers 101b is two. One of them is fixedly connected to the reaction chamber 101a and can stir the electrolyte in the reaction chamber 101a to prevent problems such as precipitation. The number of PH detectors 101c is two. One of them is fixedly connected to the reaction chamber 101a and is used to detect the pH value of the electrolyte in the reaction chamber 101a. The liquid level detector 101d is fixedly connected to the reaction chamber 101a and is used to detect the capacity of the electrolyte in the reaction chamber 101a. When the electrolyte is consumed and cannot meet the anodic oxidation reaction, an alarm is sent to remind adding electrolyte. The water outlet pipe 101e is fixedly connected to the reaction chamber 101a and is used when the electrolyte is replaced.

[0039] Further, the supplementary piece 102 includes an output pipe 102a, a dissolving chamber 102b, a stacking chamber 102c, a water tank 102d and a pure water pipe 102e. The output pipe 102a is arranged on the reaction chamber 101a. The water inlet pipe is fixedly connected to the reaction chamber 101a. The position of the water inlet pipe is symmetrical to the position of the water outlet pipe 101e. The water inlet pipe is used to supplement the electrolyte in the reaction chamber 101a. The dissolving chamber 102b is arranged on the output pipe 102a. The dissolving chamber 102b is fixedly connected to the output pipe 102a. The internal equipment of the dissolving chamber 102b can be protected. The stacking chamber 102c is arranged on the dissolving chamber 102b. The stacking chamber 102c is fixedly connected to the dissolving chamber 102b. The stacking chamber 102c is open to facilitate the placement of oxalic acid in the stacking chamber 102c for subsequent operation of dissolving into liquid. The water tank 102d is arranged on the dissolving chamber 102b. The water tank 102d is fixedly connected to the dissolving chamber 102b and is placed inside the dissolving chamber 102b. The water tank 102d is used to dissolve oxalic acid powder and water to form electrolyte. The pure water pipe 102e is arranged on the water tank 102d. The pure water pipe 102e is fixedly connected to the water tank 102d and the dissolving chamber 102b. The position of the pure water pipe 102e is symmetrical to the position of the output pipe 102a. The water output by the pure water pipe 102e is added to the oxalic acid to dissolve the oxalic acid into liquid, i.e. electrolyte. Another PH detector 101c and another stirrer 101b are fixedly connected in the water tank 102d. The two PH detectors 101c are used to detect whether the PH of the electrolyte in the water tank 102d is the same as or close to the PH of the electrolyte in the reaction chamber 101a, which can be directly used for anodic oxidation reaction.

[0040] In the operation process, oxalic acid is added into the accumulation chamber 102c, and then falls into the water tank 102d in the dissolving chamber 102b, and then is dissolved into liquid by water added into the pure water pipe 102e, and then the pH value is detected by the pH detector 101c to determine whether the pH value reaches the appropriate value, and then the oxalic acid can be sent into the reaction chamber 101a through the output pipe 102a, so that the anodic oxidation can be continuously reacted.

[0041] Embodiment 2

[0042] Referring to FIG. 1-5, the second embodiment of the present application is different from the first embodiment in that the device comprises a starting assembly 200, which comprises a rotating member 201, a follower 202 and a release member 203, the rotating member 201 is arranged on the process member 101, the follower 202 is arranged on the supplement member 102, and the release member 203 is arranged on the supplement member 102, and through the interaction among the rotating member 201, the follower 202 and the release member 203, the supplement of the electrolyte can be started when the reaction chamber 101a lacks the electrolyte, so that the problem that the addition of the electrolyte solute mainly relies on manual direct addition of the solute is solved.

[0043] Specifically, the rotating member 201 comprises a motor 201a, a rotating shaft 201b, a first moving groove 201c, a second moving groove 201d, a rotating groove 201e and a following shaft 201f. The motor 201a is arranged on the reaction chamber 101a and is fixedly connected to the reaction chamber 101a. An alarm can be sent through the liquid level detector 101d arranged in the reaction chamber 101a, so as to start the motor 201a. The rotating shaft 201b is arranged on the motor 201a and is fixedly connected to the motor 201a. The rotating shaft 201b rotates with the starting of the motor 201a. The first moving groove 201c, the second moving groove 201d and the rotating groove 201e are arranged on the rotating shaft 201b. The first moving groove 201c and the second moving groove 201d are both arranged on the rotating shaft 201b and are symmetrically arranged on the two side surfaces of the rotating shaft 201b. The lengths of the first moving groove 201c and the second moving groove 201d are such that the objects thereon can rotate one circle with the rotating shaft 201b. The rotating groove 201e is arranged on the rotating shaft 201b and has two numbers and is arranged on the two sides of the first moving groove 201c and the second moving groove 201d. The rotating groove 201e has a semicircular structure and is arranged on the upper and lower sides of the rotating shaft 201b. In this way, the objects on the rotating shaft 201b can move to the rotating groove 201e from the first moving groove 201c, then move to the second moving groove 201d and finally move to the rotating groove 201e from the second moving groove 201d, so as to realize the reciprocating movement on the rotating shaft 201b. The following shaft 201f is arranged on the first moving groove 201c and is movably connected to the first moving groove 201c, the second moving groove 201d and the rotating groove 201e. The following shaft 201f can move in the first moving groove 201c, the second moving groove 201d and the rotating groove 201e with the rotation of the rotating shaft 201b.

[0044] Further, the follower 202 comprises a support plate 202a, a moving groove 202b, a connecting plate 202c, a rotating cylinder 202d and an auxiliary groove 202e, the support plate 202a is arranged on the output pipe 102a, the support plate 202a is fixedly connected on the output pipe 102a, the number of the support plate 202a is two, each support plate 202a is attached on the output pipe 102a in a circular arc structure, the moving groove 202b is arranged on the support plate 202a, the moving groove 202b is opened on the support plate 202a, the connecting plate 202c is arranged on the moving groove 202b, the connecting plate 202c is movably connected on the moving groove 202b, the connecting plate 202c can be forcedly moved in the moving groove 202b on the support plate 202a, the rotating cylinder 202d is arranged on the connecting plate 202c, the rotating cylinder 202d is fixedly connected between the two connecting plates 202c, and the rotating cylinder 202d has a through hole with a certain diameter in the inside, which is convenient for the rotating shaft 201b to penetrate, and the follower shaft 201f is arranged in the inside of the rotating cylinder 202d, a certain groove is arranged at the middle position of the bottom side of the rotating cylinder 202d, which can make the object abut on it, the auxiliary groove 202e is arranged on the rotating cylinder 202d, the auxiliary groove 202e is opened on the rotating cylinder 202d, so that a circular ring shape is opened in the inside of the rotating cylinder 202d, which can make the follower shaft 201f be arranged on the other side, so that the rotating cylinder 202d can move along with the follower shaft 201f on the first moving groove 201c and the second moving groove 201d of the rotating shaft 201b, and move on the support plate 202a.

[0045] Further, the release member 203 includes an extension block 203a, a gradual change groove 203b, a push column 203c, a rotating column 203d, a reset groove 203e, a pull spring 203f, a connecting block 203g, and a valve plate 203h. The extension block 203a is arranged on the output pipe 102a and is fixed on the output pipe 102a. The extension block 203a is a cylindrical structure with a through hole. The gradual change groove 203b is arranged on the extension block 203a and is opened on the extension block 203a. The gradual change groove 203b has an arc of 90 degrees, with the same center as the center of the extension block 203a. The depth of the groove gradually increases to one side, so that the object on it gradually reduces in height during movement. The push column 203c is arranged on the gradual change groove 203b and is embeddedly connected in the gradual change groove 203b. The initial position of the push column 203c is in contact with the rotating cylinder 202d. With the movement of the rotating cylinder 202d, the push column 203c moves in the gradual change groove 203b under stress. When the push column 203c moves to the middle position of the bottom side of the rotating cylinder 202d under stress, it will remain in a certain state due to the groove on the rotating cylinder 202d. During movement, the length of the push column 203c is gradually deepened into the gradual change groove 203b, so that the exposed part will gradually decrease. The rotating column 203d is arranged on the push column 203c. The rotating column 203d is arranged on the push column 203c and is composed of a cylinder embedded into the extension block 203a and extending to the inner surface of the output pipe 102a and a disc wrapped around the push column 203c. In this way, the movement of the push column 203c can drive the movement of the rotating column 203d, and the height of the push column 203c will not affect the movement of the rotating column 203d.

[0046] The reset slot 203e is arranged on the rotating column 203d, is arranged on the rotating column 203d and the extension block 203a, and is arranged on the middle position of the rotating column 203d and the extension block 203a, is also a circular arc, and is arranged on the opposite side of the gradual change groove 203b. The tension spring 203f is arranged on the reset slot 203e, is arranged on the reset slot 203e, and is fixedly connected on one side of the extension block 203a. The connecting block 203g is arranged on the tension spring 203f, is fixedly connected on the other side of the tension spring 203f, and is fixedly connected on one side of the rotating column 203d. With the movement of the rotating column 203d, the tension spring 203f moves synchronously. When the rotating column 203d moves reversely, a certain reverse movement force can be provided to push. The valve plate 203h is arranged on the rotating column 203d, is fixedly connected on the rotating column 203d, is arranged in the output pipe 102a, is used for opening and closing control of supplement of electrolyte, and makes the electrolyte flow when the rotating column 203d moves to the other side of the gradual change groove 203b, and vice versa.

[0047] The rest of the structure is the same as that of example 1.

[0048] Operation process: through detection of the liquid level detector 101d, when the electrolyte is too little, the motor 201a can be started to drive the rotating shaft 201b to rotate. The rotation of the rotating shaft 201b makes the follower shaft 201f move with the rotating cylinder 202d, and the rotating cylinder 202d and the push column 203c contact and make the push column 203c move in the gradual change groove 203b. The rotation of the valve plate 203h in the first moving groove 201c realizes the rotation of the valve plate 203h, so that the electrolyte flows. When passing through the rotary groove 201e, the second moving groove 201d and the rotary groove 201e, the valve plate 203h is closed and the electrolyte cannot flow into the reaction chamber 101a, so that the supplement of the electrolyte in the reaction chamber 101a can be met.

[0049] Example 3

[0050] Referring to FIG. 1-8, the third embodiment of the present application is different from the second embodiment in that the device comprises a lifting assembly 300, which comprises a pushing member 301, a jacking member 302 and a supplement member 303. The pushing member 301 is arranged on the rotating member 201, the jacking member 302 is arranged on the supplement member 102, and the supplement member 303 is arranged on the supplement member 102. Through the interaction among the pushing member 301, the jacking member 302 and the supplement member 303, and in combination with the lifting assembly 300, the whole device can automatically dissolve oxalic acid and supplement electrolyte.

[0051] Specifically, the pushing piece 301 comprises a pushing block 301a, a lifting block 301b, a lifting groove 301c and a synchronous frame 301d. The pushing block 301a is arranged on the rotating shaft 201b and is fixedly connected to the rotating shaft 201b. The pushing block 301a rotates synchronously with the rotating shaft 201b. The pushing block 301a is an eccentric structure, and the overall center is not on the rotating shaft 201b. Thus, a certain height difference can be generated on the rotating shaft 201b to push other devices. The pushing block 301a is composed of two planes and two arc surfaces. Thus, the pushing block 301a can experience a complete movement process of not contacting objects at first, gradually lifting the objects, moving downward after the objects reach a certain height, and not contacting the objects again. The lifting block 301b is arranged on the pushing block 301a. The lifting block 301b is arranged on the pushing block 301a and is pushed by the moving assembly of the pushing block 301a to contact the lifting block 301b and then restore to the original state. The lifting block 301b is a “7” structure and can extend into the dissolution chamber 102b. The lifting groove 301c is arranged on the lifting block 301b. The lifting groove 301c is a space for the lifting block 301b to rise or fall. The lifting groove 301c is arranged on one side of the dissolution chamber 102b. The synchronous frame 301d is arranged on the lifting block 301b. The synchronous frame 301d is fixedly connected to the lifting block 301b. The synchronous frame 301d is a square frame. The lifting of the lifting block 301b can drive the synchronous frame 301d to rise.

[0052] Further, the jacking member 302 comprises a pushing plate 302a, an extension plate 302b, an inflow plate 302c and an inflow groove 302d, the pushing plate 302a is arranged in the dissolving chamber 102b, one side of the pushing plate 302a is fixedly connected to the dissolving chamber 102b and is located on the inner side of the dissolving chamber 102b, the pushing plate 302a is two inclined plates, a certain space is provided between the two pushing plates 302a, the space is convenient for the inflow of oxalic acid powder and the upward movement of the oxalic acid powder under force, the lower side of the pushing plate 302a is a synchronous frame 301d, the upward movement of the synchronous frame 301d can drive the pushing plate 302a to move, the extension plate 302b is arranged on the pushing plate 302a, the extension plate 302b is arranged on the pushing plate 302a and extends into the water tank 102d, so that when the pushing plate 302a moves upward, the oxalic acid powder can be prevented from directly flowing into the space between the pushing plate 302a and the water tank 102d, and the oxalic acid powder can flow into the set space, the inflow plate 302c is arranged on the pushing plate 302a, the inflow plate 302c is fixedly connected to the pushing plate 302a and is located on the opposite side of the synchronous frame 301d, the height of the inflow plate 302c is between the pushing plate 302a and the dissolving chamber 102b, and the inflow plate 302c moves with the movement of the pushing plate 302a, the inflow groove 302d is arranged on the inflow plate 302c, the inflow groove 302d is opened on the inflow plate 302c, there are a plurality of inflow grooves 302d in each row, and there are a plurality of rows of inflow plates 302c, so that the oxalic acid powder cannot flow down at one time, the pH value of electrolysis cannot be controlled, the inflow of the oxalic acid powder can be orderly carried out, and the dissolution of the oxalic acid powder is facilitated.

[0053] Further, the compensation member 303 includes a shielding plate 303a, a compensation plate 303b, an extension plate 303c and a spring 303d. The shielding plate 303a is arranged on the dissolving chamber 102b and is movably connected to the dissolving chamber 102b. The shielding plate 303a is fixedly connected to the inflow plate 302c. With the rising of the inflow plate 302c, the shielding plate 303a is driven to rise. In this way, the oxalic acid powder in the accumulation chamber 102c can flow into the water tank 102d in the dissolving chamber 102b through the inflow groove 302d of the inflow plate 302c. The shielding plate 303a is in a "T" shape, which can better control the excess oxalic acid powder entering the dissolving chamber 102b. The compensation plate 303b is arranged on the shielding plate 303a and is arranged on the lower side of the shielding plate 303a and movably connected in the dissolving chamber 102b. The compensation plate 303b is arranged on the two sides of the compensation plate 303b and movably connected in the groove of the dissolving chamber 102b. The spring 303d is arranged on the extension plate 303c and is fixedly connected to the extension plate 303c. With the rising of the shielding plate 303a, the spring 303d drives the compensation plate 303b to move to the position of the shielding plate 303a, thereby completing the compensation of the movement of the shielding plate 303a.

[0054] The remaining structure is the same as that of Example 2.

[0055] Operation steps: by supplementing the electrolyte in the reaction chamber 101a, after supplementing, the pushing block 301a on the rotating shaft 201b pushes the lifting block 301b to move upward with the synchronous frame 301d, which drives the pushing plate 302a on the synchronous frame 301d to push the inflow plate 302c and the shielding plate 303a to move upward, so that part of the oxalic acid powder in the accumulation chamber 102c enters the water tank 102d through the inflow groove 302d of the inflow plate 302c, and dissolves with the water entering the pure water pipe 102e. When the pH detector 101c in the water tank 102d shows that the pH value of the reaction chamber 101a meets the requirements, the device can be put into the reaction chamber 101a. The device solves the problem of adding electrolyte solute mainly by manual addition of solute, ensures the addition amount and uniformity of the solute, prevents the non-uniformity of the electrolyte concentration, and thus prevents the non-uniformity of the oxidation film caused by the non-uniformity of the electric field. The whole operation is time-saving, labor-saving and safer.

[0056] Example 4

[0057] For the fourth embodiment of the present application, a method for adding oxalic acid for anodic oxidation is provided, comprising the following steps:

[0058] S1, an anodic oxidation reaction is carried out by placing the aluminum product in the reaction chamber 101a;

[0059] S2, when the consumption of the electrolyte is reduced to a certain extent, the alarm control device is triggered to start;

[0060] S3, the anodic oxidation reaction is continued by adding the electrolyte with the same pH value to the reaction chamber 101a;

[0061] S4, the electrolyte dissolved in the water tank 102d is delivered to the reaction chamber 101a by starting the motor 201a;

[0062] S5, after the electrolyte is delivered, part of the oxalic acid accumulated in the accumulation chamber 102c is dissolved again, and the pH value is controlled, so as to wait for the next delivery.

[0063] The whole process reduces manual intervention and improves the accuracy of chemical reaction, and the present application helps to reduce production cost. The automatic system reduces the dependence on high-skilled operators, improves the utilization rate of raw materials, and reduces waste.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the scope of the claims of the present application.

Claims

1. An apparatus for adding oxalic acid for anodic oxidation, characterized by: The application relates to a process container, which comprises a process component (101) and a complementary component (102), a starting component (200) and a lifting component (300). The process component (101) comprises a reaction chamber (101a), a stirrer (101b), a PH detector (101c), a liquid level detector (101d) and a water outlet pipe (101e), wherein the stirrer (101b), the PH detector (101c), the liquid level detector (101d) and the water outlet pipe (101e) are arranged on the reaction chamber (101a). The complementary component (102) comprises an output pipe (102a), a dissolving chamber (102b), a stacking chamber (102c), a water tank (102d) and a pure water pipe (102e), wherein the output pipe (102a) is arranged on the reaction chamber (101a), the dissolving chamber (102b) is arranged on the output pipe (102a), the stacking chamber (102c) and the water tank (102d) are arranged on the dissolving chamber (102b), and the pure water pipe (102e) is arranged on the water tank (102d). The starting component (200) comprises a motor (201a), a rotating shaft (201b), a first moving groove (201c), a second moving groove (201d), a rotating groove (201e) and a following shaft (201f), wherein the motor (201a) is arranged on the reaction chamber (101a), the rotating shaft (201b) is arranged on the motor (201a), the first moving groove (201c), the second moving groove (201d) and the rotating groove (201e) are arranged on the rotating shaft (201b), and the following shaft (201f) is arranged on the first moving groove (201c).

2. The apparatus of claim 1, wherein the oxalic acid is added for anodization. The lifting component (300) comprises a pushing element (301), a jacking element (302) and a complementary element (303), wherein the pushing element (301) is arranged on the rotating element (201), the jacking element (302) is arranged on the complementary element (102), and the complementary element (303) is arranged on the complementary element (102).

3. The apparatus for anodization with addition of oxalic acid according to claim 2, characterized in that: ​ 4. The apparatus for anodization with addition of oxalic acid according to claim 3, characterized in that: ​ 5. The apparatus of claim 4, wherein the oxalic acid is added for anodization. The follower (202) comprises a support plate (202a), a moving groove (202b), a connecting plate (202c), a rotating cylinder (202d) and an auxiliary groove (202e), the support plate (202a) is arranged on the output pipe (102a), the moving groove (202b) is arranged on the support plate (202a), the connecting plate (202c) is arranged on the moving groove (202b), the rotating cylinder (202d) is arranged on the connecting plate (202c), and the auxiliary groove (202e) is arranged on the rotating cylinder (202d).

6. The apparatus for anodization with addition of oxalic acid according to claim 4 or 5, characterized in that: The release member (203) comprises an extension block (203a), a gradual change groove (203b), a pushing column (203c), a rotating column (203d), a reset groove (203e), a tension spring (203f), a connecting block (203g) and a valve plate (203h), the extension block (203a) is arranged on the output pipe (102a), the gradual change groove (203b) is arranged on the extension block (203a), the pushing column (203c) is arranged on the gradual change groove (203b), the rotating column (203d) is arranged on the pushing column (203c), the reset groove (203e) is arranged on the rotating column (203d), the tension spring (203f) is arranged on the reset groove (203e), the connecting block (203g) is arranged on the tension spring (203f), and the valve plate (203h) is arranged on the rotating column (203d).

7. The apparatus of claim 6, wherein the oxalic acid is added for anodization. The pushing member (301) comprises a pushing block (301a), a lifting block (301b), a lifting groove (301c) and a synchronous frame (301d), the pushing block (301a) is arranged on the rotating shaft (201b), the lifting block (301b) is arranged on the pushing block (301a), the lifting groove (301c) is arranged on the lifting block (301b), and the synchronous frame (301d) is arranged on the lifting block (301b).

8. The apparatus for anodization with addition of oxalic acid according to claim 7, characterized in that: The jacking member (302) comprises a pushing plate (302a), an extension plate (302b), an inflow plate (302c) and an inflow groove (302d), the pushing plate (302a) is arranged on the dissolving chamber (102b), the extension plate (302b) is arranged on the pushing plate (302a), the inflow plate (302c) is arranged on the pushing plate (302a), and the inflow groove (302d) is arranged on the inflow plate (302c).

9. The apparatus for anodization with addition of oxalic acid according to claim 8, characterized in that: The compensating member (303) comprises a shielding plate (303a), a compensating plate (303b), an expansion plate (303c) and a spring (303d), the shielding plate (303a) is arranged on the dissolving chamber (102b), the compensating plate (303b) is arranged on the shielding plate (303a), the expansion plate (303c) is arranged on the compensating plate (303b), and the spring (303d) is arranged on the expansion plate (303c).

10. A method for anodization with the addition of oxalic acid, comprising the device for anodization with the addition of oxalic acid according to any one of claims 1 to 9, comprising the steps of: - performing the anodization reaction by placing the aluminum article in the reaction chamber (101a); - electrolyte consumption triggers an alarm, the control device is activated; - finally, the reaction chamber (101a) is replenished with electrolyte, so that the anodization reaction continues.

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