Copper-plated steel strip surface passivation device

Abstract

The utility model belongs to the technical field of steel strip surface passivation, and particularly relates to a copper-plated steel strip surface passivation device which comprises a passivation bin filled with passivation liquid, a first bubble removing assembly is rotationally mounted at the bottom of the inner wall of the passivation bin, a second bubble removing assembly is rotationally mounted in the passivation bin and located over the first bubble removing assembly, and the movable end of the first bubble removing assembly and the movable end of the second bubble removing assembly make contact with the outer wall face of the steel belt. According to the copper-plated steel strip surface passivation device, the first bubble removing assembly and the second bubble removing assembly are synchronously driven by a driving motor to rotate, the manufacturing and using cost is reduced, the outer wall face of a steel strip can be evenly and comprehensively scraped when a scraping strip rotates, bubbles and impurities on the outer wall face of the steel strip can be removed, and the surface passivation effect of the copper-plated steel strip is improved. The passivation solution is used for uniformly and comprehensively performing contact passivation with the outer wall surface of the steel strip, the compactness and stability of passivation film forming are ensured, meanwhile, passivation can be synchronously performed from the upper surface and the lower surface of the steel strip, the passivation is relatively comprehensive, and the passivation effect is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel band surface passivation technical field especially relates to a copper plating steel band surface passivation device. BACKGROUND

[0002] In the metal processing industry, copper-plated steel strip as an important material is widely used in electrical, electronic, building and automobile manufacturing and other fields. Its surface performance directly affects the service life and overall quality of the product. In order to improve the corrosion resistance and aesthetic degree of copper-plated steel strip, it is usually necessary to passivate its surface. Passivation is to form a dense passivation film on the metal surface by chemical or electrochemical method. This film can effectively isolate the metal from the corrosive medium in the environment, so as to achieve the purpose of rust and corrosion prevention.

[0003] Metal surface is easy to attach various oil stains, dust and other impurities during processing, transportation and storage. If these pollutants are not completely removed before passivation, it will have an adverse effect on the subsequent passivation process. Residual oil stains will react with passivation liquid in the passivation process, which may produce gas and form bubbles on the surface of the steel strip, or impurities will form a space on the surface of the steel strip, which will not only interfere with the uniform distribution of passivation liquid, but also affect the formation process of passivation film, resulting in uneven distribution of passivation film on the surface of the steel strip, and even possible local uncovered condition, reducing the density and stability of passivation film, thus weakening its protective effect, and greatly reducing the corrosion resistance of copper-plated steel strip. SUMMARY

[0004] In order to overcome the defects of the prior art pointed out above, the present inventors have made in-depth research and, after a lot of creative labor, completed the present utility model.

[0005] Specifically, the technical problem to be solved by the present utility model is to provide a copper-plated steel strip surface passivation device to solve the technical problem that residual oil stains will react with passivation liquid in the passivation process, affecting the passivation effect.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions:

[0007] A copper-plated steel strip surface passivation device, comprising a passivation bin internally provided with passivation liquid and a steel strip, a plurality of supporting rollers are rotatably installed at the upper position of both sides of the passivation bin, and a plurality of pressure rollers are rotatably installed between the two supporting rollers on both sides of the passivation bin.

[0008] The bottom of the inner wall of the passivation bin is rotationally provided with a bubble removing assembly one, the inside of the passivation bin is rotationally provided with a bubble removing assembly two above the bubble removing assembly one, the bubble removing assembly one and the bubble removing assembly two are arranged in a same structure and in an opposite state, the movable ends of the bubble removing assembly one and the bubble removing assembly two are respectively in contact with the outer wall surface of the steel belt, and the inside of the passivation bin is provided with a rotation driving source for driving the bubble removing assembly one and the bubble removing assembly two to rotate synchronously.

[0009] As an improved technical scheme, the rotation driving source comprises an installation shaft one rotationally provided at the bottom of the inner wall of the passivation bin, and the top of the installation shaft one is connected with the end surface of the bubble removing assembly one away from the bubble removing assembly two, the rotation driving source further comprises a Y-shaped frame welded on the bubble removing assembly two in the inside of the passivation bin, the middle part of the Y-shaped frame is rotationally provided with an installation shaft two through a bearing, and the bottom end of the installation shaft two is connected with the end surface of the bubble removing assembly two away from the bubble removing assembly one.

[0010] As an improved technical scheme, the rotation driving source further comprises a rack welded at the top of the passivation bin, the top of the rack is provided with a driving motor, the driving end of the driving motor is fixedly connected with a long shaft, and the long shaft and the installation shaft one and the long shaft and the installation shaft two are all provided with a belt synchronous assembly.

[0011] As an improved technical scheme, the bubble removing assembly two comprises a rotating rotating plate, and the bottom end of the rotating plate is detachably provided with a scraping strip.

[0012] As an improved technical scheme, the top of the rotating plate is provided with sliding holes on both sides, T-shaped rods are slidably arranged in the sliding holes, the bottom ends of the two T-shaped rods are fixedly provided with a lifting strip, the scraping strip is detachably arranged at the bottom of the lifting strip, and springs are sleeved on the vertical rod ends of the T-shaped rods and located between the opposite surfaces of the rotating plate and the lifting strip.

[0013] As an improved technical scheme, the end surface of the scraping strip close to the lifting strip is fixedly provided with a U-shaped seat, the recess of the U-shaped seat is matched with the lifting strip, and the lifting strip and the U-shaped seat are fixedly connected through bolts.

[0014] As an improved technical scheme, the end of the spring away from the U-shaped seat is pointed.

[0015] After the above technical scheme is adopted, the beneficial effects of the passivation bin are as follows.

[0016] 1. The U-shaped seat and the lifting strip are connected through bolts, the scraping strip is detachably arranged at the bottom of the lifting strip, the scraping strip can be replaced according to the abrasion degree, the contact effect between the scraping strip and the steel belt is ensured, the lifting strip is positioned in the inner cavity of the U-shaped seat when the scraping strip is arranged, and the scraping strip can be quickly assembled and disassembled.

[0017] 2、The utility model discloses, the scraping strip on the bubble removing assembly one and bubble removing assembly two can be contacted with the upper surface and the lower surface of the steel band respectively, under the different thickness of the steel band, because the thickness of the steel band applies the pressure to the spring through the scraping strip, the spring is compressed through the lifting strip, on the one hand, the scraping strip is tightly attached to the outer wall of the steel band, guarantee the effect that the scraping strip is contacted with the outer wall of the steel band, on the other hand, different thickness steel band can also be adapted, improve the flexibility and adaptability of use, and when the steel band of different thicknesses passes between the opposite surfaces of bubble removing assembly one and bubble removing assembly two, the close contact between the scraping strip and the steel band can also be maintained.

[0018] 3、The utility model discloses, the bubble removing assembly one and bubble removing assembly two are rotated by one drive motor synchronous drive, reduce the manufacturing and use cost, and, when the scraping strip rotates, the outer wall of the steel band is scraped evenly and comprehensively, benefit the removal of the bubble and impurity of the outer wall of the steel band, and the passivation liquid is evenly and comprehensively contacted with the outer wall of the steel band and passivated, guarantee the compactness and stability of passivation film formation, simultaneously, can be from the upper surface and the lower surface of the steel band synchronous, more comprehensive, and the passivation effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without the creative labor. Among them:

[0020] Figure 1 It is the whole structure schematic diagram of the utility model discloses a copper-plated steel band surface passivation device.

[0021] Figure 2 It is the internal structure schematic diagram of the passivation bin of the utility model discloses a copper-plated steel band surface passivation device.

[0022] Figure 3 It is the structure schematic diagram of the bubble removing assembly one, bubble removing assembly two and rotary drive source of the utility model discloses a copper-plated steel band surface passivation device.

[0023] Figure 4 It is the structure schematic diagram of the bubble removing assembly two of the utility model discloses a copper-plated steel band surface passivation device.

[0024] Mark explanation:

[0025] 1, passivation bin; 11, carrier roller; 12, compression roller; 2, steel strip; 3, defoaming assembly one; 4, defoaming assembly two; 41, rotating plate; 42, T-shaped rod; 43, U-shaped seat; 44, scraping strip; 45, spring; 46, lifting strip; 5, rotating driving source; 51, rack; 52, driving motor; 53, long shaft; 54, belt type synchronous assembly; 55, mounting shaft one; 56, mounting shaft two; 57, Y-shaped frame. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in 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.

[0027] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] Meanwhile, "and / or" or "and / or" appearing throughout the text means that it includes three schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B schemes that meet at the same time.

[0029] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0030] As Figures 1 to 4 The embodiment provides a copper-plated steel strip surface passivation device, which comprises a passivation bin 1 internally provided with passivation liquid and a steel strip 2, rotatingly installed with carrier rollers 11 at upper positions on both sides in the passivation bin 1, rotatingly installed with compression rollers 12 on both sides in the passivation bin 1 and located between the two carrier rollers 11, and the compression rollers 12 are located below the carrier rollers 11, and meanwhile, the steel strip 2 passes between the two carrier rollers 11 and the two compression rollers 12.

[0031] A bubble-removing assembly one 3 is rotatably installed at the bottom of the inner wall of the passivation bin 1, and a bubble-removing assembly two 4 is rotatably installed at the inner part of the passivation bin 1 and above the bubble-removing assembly one 3. The bubble-removing assembly one 3 and the bubble-removing assembly two 4 are identical in structure and arranged in opposite states, and the movable ends of the bubble-removing assembly one 3 and the bubble-removing assembly two 4 are respectively in contact with the outer wall surface of the steel belt 2. A rotating driving source 5 is installed at the inner part of the passivation bin 1 for driving the bubble-removing assembly one 3 and the bubble-removing assembly two 4 to rotate synchronously.

[0032] As shown in the drawings, Figures 1 to 3 As shown in the drawings, in the embodiment, the rotating driving source 5 comprises an installation shaft one 55 rotatably installed at the bottom of the inner wall of the passivation bin 1, and the top of the installation shaft one 55 is connected with the end surface of the bubble-removing assembly one 3 away from the bubble-removing assembly two 4. The rotating driving source 5 further comprises a Y-shaped frame 57 welded at the inner part of the passivation bin 1 and above the bubble-removing assembly two 4. The middle part of the Y-shaped frame 57 is rotatably installed with an installation shaft two 56 through a bearing, and the bottom end of the installation shaft two 56 is connected with the end surface of the bubble-removing assembly two 4 away from the bubble-removing assembly one 3.

[0033] As shown in the drawings, Figures 1 to 3 As shown in the drawings, in the embodiment, the rotating driving source 5 further comprises a rack 51 welded at the top of the passivation bin 1. The top of the rack 51 is installed with a driving motor 52, and the driving end of the driving motor 52 is located at the inner part of the passivation bin 1. The driving end of the driving motor 52 is fixedly connected with a long shaft 53. The long shaft 53 is installed with a belt synchronous assembly 54 between the installation shaft one 55 and the long shaft 53, and between the installation shaft two 56 and the long shaft 53. The belt synchronous assembly 54 is composed of two synchronous wheels and a synchronous belt installed between the two synchronous wheels. The driving motor 52 drives the long shaft 53 to rotate. Under the transmission of the two belt synchronous assemblies 54, the installation shaft one 55 and the installation shaft two 56 rotate synchronously with the long shaft 53, thereby driving the bubble-removing assembly one 3 and the bubble-removing assembly two 4 to rotate synchronously. The bubble-removing assembly one 3 and the bubble-removing assembly two 4 are driven to rotate synchronously by one driving motor 52, thereby reducing the manufacturing and using costs.

[0034] As shown in the drawings, Figures 3 to 4 As shown in the drawings, in the embodiment, the bubble-removing assembly two 4 comprises a rotating plate 41. The bottom end of the rotating plate 41 is detachably installed with a scraping strip 44. The scraping strip 44 rotates to uniformly and comprehensively scrape the outer wall surface of the steel belt 2, thereby facilitating the removal of the bubbles and impurities on the outer wall surface of the steel belt 2. The passivation liquid uniformly and comprehensively contacts the outer wall surface of the steel belt 2 for passivation, thereby ensuring the compactness and stability of the passivation film formation. Meanwhile, the passivation can be simultaneously performed from the upper and lower surfaces of the steel belt 2, which is more comprehensive and has good passivation effect.

[0035] As shown in the drawings, Figure 4As shown, in the embodiment, the rotating plate 41 is provided with sliding holes on both sides of the top, and T-shaped rods 42 are slidably installed through the sliding holes. The bottom ends of the two T-shaped rods 42 are fixed with a lifting strip 46, and the scraping strip 44 is detachably installed at the bottom of the lifting strip 46. The vertical rod end of the T-shaped rod 42 is sleeved with a spring 45 between the opposite surfaces of the rotating plate 41 and the lifting strip 46. Under different thicknesses of the steel belt 2, the thickness of the steel belt 2 applies pressure to the spring 45 through the scraping strip 44, and the spring 45 is compressed through the lifting strip 46. On the one hand, the scraping strip 44 is tightly attached to the outer wall surface of the steel belt 2, ensuring the contact effect between the scraping strip 44 and the outer wall surface of the steel belt 2. On the other hand, it can also adapt to steel belts 2 of different thicknesses, improving the flexibility and adaptability of use. Moreover, when the steel belt 2 of different thicknesses passes between the opposite surfaces of the bubble removing assembly one 3 and the bubble removing assembly two 4, the scraping strip 44 can also maintain close contact with the steel belt 2.

[0036] As shown, Figure 4 In the embodiment, the scraping strip 44 is fixed with a U-shaped seat 43 at one end surface close to the lifting strip 46. The recess cavity on the U-shaped seat 43 is adapted to the lifting strip 46. When the scraping strip 44 is installed, the lifting strip 46 is positioned in the inner cavity of the U-shaped seat 43, which helps to facilitate quick installation and removal of the scraping strip 44. The lifting strip 46 and the U-shaped seat 43 are fixedly connected through bolts. The two sides of the lifting strip 46 and the two sides of the U-shaped seat 43 are provided with threaded holes for threaded connection with the bolts. The U-shaped seat 43 and the lifting strip 46 are connected through the bolts, realizing detachable installation of the scraping strip 44 at the bottom of the lifting strip 46. According to the degree of wear, the scraping strip 44 can be replaced, ensuring the contact effect between the scraping strip 44 and the steel belt 2.

[0037] As shown, Figure 4 In the embodiment, the spring 45 is provided in a sharp shape away from the U-shaped seat 43.

[0038] In use, the U-shaped seat 43 and the lifting strip 46 are connected through the bolts, realizing detachable installation of the scraping strip 44 at the bottom of the lifting strip 46.

[0039] The steel belt passes between the two side rollers 11 and the compression roller 12, and is pressed down to the inside of the passivation bin 1, so that the steel belt is completely immersed in the passivation liquid when passing through the inside of the passivation bin 1, and the passivation liquid is in full contact with the outer wall surface of the steel belt 2. When the steel belt 2 passes between the opposite surfaces of the bubble removing assembly one 3 and the bubble removing assembly two 4, the U-shaped seats 43 on the bubble removing assembly one 3 and the bubble removing assembly two 4 will respectively contact the upper surface and the lower surface of the steel belt 2. Under different thicknesses of the steel belt 2, the thickness of the steel belt 2 applies pressure to the spring 45 through the scraping strip 44, and the spring 45 is compressed through the lifting strip 46. On the one hand, the scraping strip 44 is tightly attached to the outer wall surface of the steel belt 2. On the other hand, it can also adapt to steel belts 2 of different thicknesses.

[0040] The drive motor 52 drives the long shaft 53 to rotate. Under the transmission action of the two belt synchronous components 54, the mounting shaft 1 55 and the mounting shaft 2 56 rotate synchronously with the long shaft 53, driving the defoaming component 1 3 and the defoaming component 2 4 to rotate synchronously.

[0041] As the scraper 44 rotates, it will scrape the outer wall of the steel strip 2 evenly and comprehensively, which is conducive to removing air bubbles and impurities from the outer wall of the steel strip 2, and passivating liquid will be used to make even and comprehensive contact with the outer wall of the steel strip 2 for passivation.

[0042] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A passivation device for copper-plated steel strip, characterized in that: It includes a passivation chamber (1) with passivation liquid inside, and a steel belt (2). The passivation chamber (1) has rollers (11) rotatably installed on the upper positions of both sides inside, and pressure rollers (12) rotatably installed on both sides inside the passivation chamber (1) and between the two rollers (11). A defoaming component 1 (3) is rotatably installed at the bottom of the inner wall of the passivation chamber (1). A defoaming component 2 (4) is rotatably installed inside the passivation chamber (1) and directly above the defoaming component 1 (3). The defoaming component 1 (3) and the defoaming component 2 (4) have the same structure and are arranged in a relative state. The movable ends of the defoaming component 1 (3) and the defoaming component 2 (4) are respectively in contact with the outer wall surface of the steel strip (2). A rotary drive source (5) for driving the defoaming component 1 (3) and the defoaming component 2 (4) to rotate synchronously is installed inside the passivation chamber (1).

2. The copper-plated steel strip surface passivation device according to claim 1, characterized in that: The rotary drive source (5) includes a mounting shaft (55) rotatably mounted on the bottom of the inner wall of the passivation chamber (1), and the top of the mounting shaft (55) is connected to the end face of the defoaming component (3) away from the defoaming component (4). The rotary drive source (5) also includes a Y-shaped frame (57) welded inside the passivation chamber (1) and located on the defoaming component (4). The middle part of the Y-shaped frame (57) is rotatably mounted with a mounting shaft (56) through a bearing, and the bottom end of the mounting shaft (56) is connected to the end face of the defoaming component (4) away from the defoaming component (3).

3. The copper-plated steel strip surface passivation device according to claim 2, characterized in that: The rotary drive source (5) also includes a frame (51) welded to the top of the passivation chamber (1). A drive motor (52) is installed on the top of the frame (51). A long shaft (53) is fixedly connected to the drive end of the drive motor (52). A belt-type synchronization assembly (54) is installed between the long shaft (53) and the first mounting shaft (55) and between the long shaft (53) and the second mounting shaft (56).

4. The copper-plated steel strip surface passivation device according to claim 3, characterized in that: The defoaming component 2 (4) includes a rotating plate (41), and a scraper (44) is detachably installed at the bottom end of the rotating plate (41).

5. The copper-plated steel strip surface passivation device according to claim 4, characterized in that: The rotating plate (41) has sliding holes on both sides of its top, and T-shaped rods (42) are slidably installed through the sliding holes. A lifting bar (46) is fixed between the bottom ends of the two T-shaped rods (42), and a scraper (44) is detachably installed at the bottom of the lifting bar (46). A spring (45) is sleeved on the vertical end of the T-shaped rod (42) between the opposite surfaces of the rotating plate (41) and the lifting bar (46).

6. The copper-plated steel strip surface passivation device according to claim 5, characterized in that: The scraper (44) is fixed with a U-shaped seat (43) on one end face near the lifting bar (46), and the cavity on the U-shaped seat (43) is adapted to the lifting bar (46). The lifting bar (46) and the U-shaped seat (43) are fixedly connected by bolts.

7. The copper-plated steel strip surface passivation device according to claim 6, characterized in that: The spring (45) is pointed at the end away from the U-shaped seat (43).

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