Continuous electroplating equipment

Abstract

The continuous electroplating equipment comprises a hanging frame, a hook is arranged at the top of the hanging frame, supporting arms are fixedly installed on the bottom face of the middle of the hanging frame in a front-back symmetry mode, round blocks are rotatably installed on the inner sides of the bottoms of the supporting arms, rotating grooves are symmetrically formed in the outer rings of the round blocks, and sliding blocks are installed in the rotating grooves in a limiting and sliding mode; main rods are fixedly installed on the outer ring of the round block and located on the side edge of the rotating groove and on the outer side of the sliding block, the outer ends of the main rods are slidably sleeved with supporting rods, end blocks are fixedly installed at the outer ends of the supporting rods, first conductive heads are arranged on the inner sides of the ends of the supporting rods, and second conductive heads are arranged in the center of the inner side of the round block. An arc-shaped block is arranged between the side, away from the rotating groove, of the main rod on the sliding block and the side wall, adjacently installed on the outer ring of the round block, of the main rod, through the design of the clamping device, workpieces of different shapes can be stably clamped, and it is guaranteed that the uniformity of plating layers on the surfaces of the workpieces is high during electroplating.

Description

Technical Field

[0001] The present application relates to the technical field of electroplating equipment, and in particular to a continuous electroplating equipment. Background Art

[0002] Electroplating is the process of plating a thin layer of other metals or alloys on certain metal surfaces using the principle of electrolysis. It is a process that uses electrolysis to attach a layer of metal film to the surface of metal or other material parts to prevent metal oxidation. The existing metal electroplating is mainly zinc, nickel, copper, etc. Among them, zinc plating has great advantages in preventing steel corrosion. Therefore, there are many galvanizing equipment at present. Among them, continuous electroplating is widely used for galvanizing and has good galvanizing effect, but it still has certain shortcomings:

[0003] First, during galvanizing, most plate-shaped metal workpieces are rectangular in shape, and are clamped directly by the clips on the hanger during galvanizing, and the clips are arranged in a row. However, it is difficult to clamp some round or oval workpieces during galvanizing, which makes the hanger unstable when moving, and may fall off, thus affecting the continuous galvanizing process.

[0004] Secondly, when galvanizing, a larger clamp is generally used to clamp the workpiece, but galvanizing is generally for the entire surface of the metal workpiece. Since the clamping requires a certain contact area to improve the clamping stability, when immersed in the plating solution, the area clamped by the clamp cannot fully contact with the zinc plating solution to be fully and evenly galvanized, which leads to poor galvanizing effect;

[0005] At the same time, during galvanizing, the cathode is formed by connecting the workpiece to electricity in the plating solution, and the existing conductive contacts are all on the clamps, which conduct electricity to the workpiece when clamping it, so that they are all connected to electricity at the top of the workpiece, which will cause uneven conductivity of the workpiece as a whole, and the zinc layer formed at the top will affect the conductivity effect when it is thick, which will lead to uneven galvanizing. At the same time, when the workpiece is placed in the plating solution, because the electroplating time is short, the step of placing the workpiece into the plating solution moves vertically up and down, which will also cause the galvanizing time at the top of the workpiece to be significantly shorter than that at the bottom, which will also cause uneven galvanizing. Summary of the invention

[0006] The present application proposes a continuous electroplating device, which has the advantages of stable clamping and uniform galvanizing, and is used to solve the problems raised by the background technology.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a continuous electroplating equipment, including a hanging rack, a hook is arranged on the top of the hanging rack, a support arm is symmetrically fixedly installed on the front and rear of the bottom front of the middle part of the hanging rack, a round block is rotatably installed on the inner side of the bottom of the support arm, a rotation groove is symmetrically opened on the outer ring of the round block, a slider is slidably installed on the inner limit position of the rotation groove, a main rod is fixedly installed on the outer ring of the round block at the side of the rotation groove and on the outer side of the slider, a support rod is slidably sleeved on the outer end of the main rod, an end block is fixedly installed on the outer end of the support rod, a first conductive head is arranged on the inner side of the end of the support rod, a second conductive head is arranged at the inner center of the round block, and an arc block is arranged between the side of the main rod on the slider away from the rotation groove and the side wall of the main rod adjacent to the outer ring of the round block.

[0008] Through the above design, stable and uniform clamping can be achieved for workpieces of different shapes, and the surface of the workpiece is basically not touched by the clamp, ensuring the uniformity of its galvanizing.

[0009] Furthermore, a telescopic groove is provided inside the main rod, and the support rod is slidably sleeved inside the telescopic groove, and a limiting block is fixedly installed on one end of the support rod located inside the telescopic groove, and the limiting block slides within the telescopic groove within a limited position, and a spring is connected between the bottom surface of the limiting block and the bottom wall of the telescopic groove, and a limiting groove is provided on the inner side of the end of the support rod, and a first screw rod is rotatably sleeved on the middle part of the end block, and the first screw rod extends into the limiting groove and the end is rotatably installed on the inner wall of the limiting groove, and an adjusting block is slidably sleeved inside the limiting groove, and the adjusting block is threadedly sleeved on the outer ring of the first screw rod, and the first conductive head is installed on the outer side of the adjusting block.

[0010] Through the above structural setting, the main rod and the support rod cooperate with the spring to adjust and provide clamping force, so as to achieve clamping of the workpiece at the matching end block, and the conductive effect is uniform, so that the surface of the workpiece is uniformly galvanized.

[0011] Furthermore, a slide groove is provided inside the arc block, and the open end faces the main rod installed on the slider, a slide bar is slidably sleeved inside the slide groove, and one end of the slide bar is fixedly connected to the side wall of the main rod on the slider, and a valve core is provided at one end of the arc block close to the end installed on the outer ring of the round block, and the interior of the valve core is connected to the slide groove.

[0012] Through the above structural design, the main rod can be adjusted according to different workpiece shapes, so that it can achieve the best stable clamping effect.

[0013] Furthermore, a guide rod is fixedly installed on the inner side of the end block, a guide hole is opened on the inner side of the end block at one side of the guide rod, and the guide rod and the guide hole are symmetrically positioned, and the guide rod and the guide hole between the opposite end blocks on the two support arms are staggered.

[0014] Through the above structural design, the line contact through the guide hole not only ensures stable clamping of the workpiece, but also reduces the contact area, which is more conducive to uniform galvanizing.

[0015] Furthermore, an adjustment groove is provided on the inner side of the bottom of the support arm, a rotating block is fixedly installed on one side of the round block, and the rotating block is movably sleeved in the adjustment groove, a driven wheel is rotatably installed inside the bottom end of the support arm, a driving wheel is symmetrically installed inside the middle part of the bracket for front and rear rotation, a belt is connected between the driven wheel and the outer ring of the driving wheel, a dual-axis motor is fixedly installed in the middle part of the bracket, and the output shaft of the dual-axis motor is fixedly connected to the driving wheel.

[0016] Furthermore, a rectangular groove is opened in the middle of the driven wheel, a rectangular block is fixedly connected to the outer side of the rotating block, and the rectangular block is limitedly slidably sleeved in the rectangular groove, a second screw rod is threadedly sleeved in the middle of one side of the rectangular block, and one end of the second screw rod extends to the outside of the support arm and is limitedly rotatably sleeved with the support arm.

[0017] Through the above structural design, the transmission structure is used to realize the rotation of the round block, thereby driving the workpiece to ensure uniform electroplating time in the top and bottom areas during galvanizing, and the round block can be adjusted to adapt to stable clamping of workpieces of different thicknesses.

[0018] The present application provides a continuous electroplating device, in which two sets of clamping devices are respectively connected at the bottom of the rack through supporting arms. Compared with the prior art, a fixed and adjustable main rod is arranged on a round block, and a supporting rod and a spring are arranged on the main rod, and an end block is used at the end of the supporting rod to clamp the workpiece, so that the clamping device can be adjusted according to the shape of the workpiece to stably clamp it;

[0019] By arranging a support rod on the main rod, and using a spring and a guide hole to achieve a clamping effect, and cooperating with the clamping devices on both sides together, compared with the prior art, multiple sets of guide holes are used to clamp the workpiece and the workpiece is in line contact, which will not occupy too much surface area of ​​the workpiece. At the same time, the round blocks on both sides are moved closer to the middle to merge the clamping device, so that the first conductive head and the second conductive head are against the surface of the second conductive head, further improving the clamping stability effect. At the same time, the overall area contacted by the hanger is extremely small, which can ensure uniform galvanizing on the surface of the workpiece.

[0020] By arranging a first conductive head on each support rod and a second conductive head at the center of the round block, compared with the prior art, the first conductive head and the second conductive head can cooperate to perform uniform conductive galvanizing on the workpiece, thereby improving the uniformity of galvanizing. At the same time, a dual-axis motor is used to rotate the round block, so that the entire workpiece is in the plating tank for a uniform time during the galvanizing process, further ensuring the uniformity of galvanizing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0022] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention as a whole clamping a workpiece;

[0025] Figure 3 It is the overall right view of the structure of the present invention;

[0026] Figure 4 It is a half-section view of the overall structure of the present invention;

[0027] Figure 5 It is a half side schematic diagram of the structure of the present invention;

[0028] Figure 6 A schematic diagram of a clamping device structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the adjusting rod group of the present invention;

[0030] Figure 8 It is a schematic diagram of the transmission structure of the present invention;

[0031] Fig. 9 for Figure 7 Enlarged view of point A in the middle;

[0032] Fig.10 for Figure 8 Enlarged view of point B in the middle.

[0033] Among them: 1. hanger; 2. hook; 3. support arm; 301, adjustment slot; 4. round block; 401, rotating slot; 402, rotating block; 403, rectangular block; 5. main rod; 501, telescopic slot; 6. support rod; 601, limit block; 602, limit slot; 7. arc block; 701, slide slot; 702, slide bar; 703, valve core; 8. end block; 801, guide rod; 802, guide hole; 9. first conductive head; 10. second conductive head; 11. spring; 12. first screw rod; 13. adjustment block; 14. dual-axis motor; 15. driven wheel; 1501, rectangular slot; 16. driving wheel; 17. belt; 18. second screw rod; 19. workpiece. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] See also Figure 1-Figure 10 A continuous electroplating device comprises a rack 1, a hook 2 is arranged on the top of the rack 1, a support arm 3 is fixedly installed symmetrically on the front and rear of the bottom of the middle part of the rack 1, a round block 4 is rotatably installed on the inner side of the bottom of the support arm 3, a rotating groove 401 is symmetrically opened on the outer ring of the round block 4, a slider is slidably installed inside the rotating groove 401, a main rod 5 is fixedly installed on the outer ring of the round block 4 at the side of the rotating groove 401 and on the outer side of the slider, a support rod 6 is slidably sleeved on the outer end of the main rod 5, an end block 8 is fixedly installed on the outer end of the support rod 6, a first conductive head 9 is arranged on the inner side of the end of the support rod 6, and a first conductive head 9 is arranged on the inner center of the inner side of the round block 4 A second conductive head 10 is provided, and an arc block 7 is provided between the side of the main rod 5 on the slider away from the rotating groove 401 and the side wall of the main rod 5 adjacently installed on the outer ring of the round block 4. The arc block 7 can be used to adjust the angle between adjacent main rods 5, so as to adapt to the clamping of different workpieces 19, and the angle at which the main rod 5 can slide with the slider is less than ninety degrees. At the same time, the arc of the arc block 7 is ninety degrees, that is, the four main rods 5 can form a uniform cross distribution. At this time, the clamping stability is the best, and the angle between the main rods 5 can also be adjusted according to the elliptical workpiece 19 to achieve better clamping.

[0036] Among them, a slide groove 701 is opened inside the arc block 7, and the open end faces the main rod 5 installed on the slider, and a slide bar 702 is slidably sleeved inside the slide groove 701, and a sliding seal is formed between the slide bar 702 and the inner wall of the slide groove 701, which ensures that it can remain stable after adjustment, and one end of the slide bar 702 is fixedly connected to the side wall of the main rod 5 on the slider, and a valve core 703 is provided at one end of the arc block 7 close to the end installed on the outer ring of the round block 4, and the interior of the valve core 703 is connected to the slide groove 701. When in use, it is only necessary to press the valve core 703 to make the inside of the slide groove 701 conductive to the outside world, and then rotate the main rod 5 to drive the slide bar 702 to rotate inside the slide groove 701, and release the valve core 703 after adjusting to the appropriate position. At this time, the inner wall of the slide groove 701 returns to being sealed to maintain stable support between adjacent main rods 5.

[0037] See also Figure 1-Figure 7A telescopic groove 501 is provided inside the main rod 5, and the support rod 6 is slidably sleeved inside the telescopic groove 501. A limit block 601 is fixedly installed at one end of the support rod 6 located inside the telescopic groove 501, and the limit block 601 slides within the telescopic groove 501. A spring 11 is connected between the bottom surface of the limit block 601 and the inner bottom wall of the telescopic groove 501. The limit block 601 plays a limiting role and can also play a certain sealing effect to prevent the plating solution from entering the telescopic groove 501 and contacting the spring 11. Moreover, the spring 11 is a compression spring. As long as the support rod 6 is stretched outward, it will receive a rebound tension. In this way, the larger the workpiece 19, the greater the rebound force it will receive, and the clamping will be more stable.

[0038] See also Figure 2-Figure 7 , Fig. 9 A limiting groove 602 is provided on the inner side of the end of the support rod 6, a first screw rod 12 is rotatably sleeved on the middle part of the end block 8, and the first screw rod 12 extends into the limiting groove 602 and the end is rotatably mounted on the inner wall of the limiting groove 602, an adjusting block 13 is slidably sleeved inside the limiting groove 602, and the adjusting block 13 is threadedly sleeved on the outer ring of the first screw rod 12, and the first conductive head 9 is mounted on the outer side of the adjusting block 13, and the position of the adjusting block 13 can be adjusted by rotating the first screw rod 12, thereby adjusting the position of the first conductive head 9 to contact the required position on the workpiece 19, and the shape of the first conductive head 9 can be replaced according to the situation. The conventional use of a pointed shape can achieve an effect of approximate point contact, thereby avoiding occupying too large an area of ​​the workpiece 19 and affecting the uniformity of galvanizing.

[0039] The inside of the hanger 1 is connected with a wire, and the wire is rotated and conductive by setting a conductive slip ring between the support arm 3 and the round block 4, and then connected to the first conductive head 9 and the second conductive head 10 through the round block 4. In this way, during electroplating, a roughly uniform distribution effect can be formed between the first conductive heads 9 on the four support rods 6 and the second conductive head 10 in the middle. In this way, the workpiece 19 can be evenly galvanized during conduction to ensure the quality of galvanizing.

[0040] Among them, a guide rod 801 is fixedly installed on the inner side of the end block 8, and a guide hole 802 is opened on the inner side of the end block 8 at one side of the guide rod 801, and the positions of the guide rod 801 and the guide hole 802 are symmetrical, and the guide rod 801 and the guide hole 802 between the opposite end blocks 8 on the two support arms 3 are staggered. When the clamping structure between the two support arms 3 is combined, the guide rod 801 at the corresponding position will be inserted into the opposite guide hole 802. In this way, the guide rod 801 can be used to provide stable protection for the workpiece 19, and with the cooperation of multiple groups of guide rods 801, the entire workpiece 19 can be clamped in the middle, and the contact area between the guide rod 801 and the workpiece 19 is line contact, which basically will not affect the galvanizing of its surface.

[0041] See also Figure 4-Figure 10 An adjusting groove 301 is provided on the inner side of the bottom of the support arm 3, a rotating block 402 is fixedly installed on one side of the round block 4, and the rotating block 402 is movably sleeved in the adjusting groove 301, and the rotating block 402 can be slid in the adjusting groove 301 to adjust the relative position of the round block 4 and the support arm 3, so that the workpiece 19 can be clamped between the two round blocks 4, a driven wheel 15 is rotatably installed inside the bottom end of the support arm 3, and a driving wheel 16 is symmetrically rotated inside the middle part of the hanging frame 1, and a belt 17 is connected between the outer rings of the driven wheel 15 and the driving wheel 16, and a dual-axis motor 14 is fixedly installed in the middle part of the hanging frame 1, and the output of the dual-axis motor 14 The output shaft is fixedly connected to the driving wheel 16, and the driving force is provided by the dual-axis motor 14, and the belt 17 is used to realize the transmission effect between the hanger 1 and the support arm 3. At the same time, it is not limited to the transmission structure in the present application, and structures such as helical gear transmission can also be used to finally realize the rotation of the driven wheel 15. The rotation speed of the dual-axis motor 14 is slow to avoid driving the round block 4 to rotate quickly during operation, thereby causing the plating solution to be thrown out. The number of circles of the double-axis motor 14 for the round block 4 to rotate each time is N+1 / 2 circles (N is an integer), which can ensure that the part of the workpiece 19 immersed in the plating solution tank later can be discharged from the tank later, ensuring that the galvanizing time is sufficient.

[0042] Among them, a rectangular groove 1501 is opened in the middle of the driven wheel 15, and a rectangular block 403 is fixedly connected to the outer side of the rotating block 402, and the rectangular block 403 is limited and slidably sleeved in the rectangular groove 1501, and the rectangular groove 1501 and the rectangular block 403 can slide relative to each other, but when the driven wheel 15 rotates, the rectangular block 403 can be driven to rotate synchronously through the limit of the rectangular groove 1501, and then the round block 4 is driven to rotate synchronously, and a second screw rod 18 is threadedly sleeved in the middle part of one side of the rectangular block 403, and one end of the second screw rod 18 extends to the outside of the support arm 3 and is limited and rotatably sleeved between the support arm 3. The rotation of the second screw rod 18 can adjust the position of the rectangular block 403 inside the rectangular groove 1501, and also adjust the relative position between the round block 4 and the support arm 3, so that the workpiece 19 can be clamped in one clamping device to adjust the other round block 4, so that the two clamping devices can stably clamp the workpiece 19.

[0043] Working principle: When in use, first adjust the arc block 7 according to the workpiece 19 to be electroplated, press the valve core 703 to make the inside of the slide 701 connected with the outside, then rotate the main rod 5 installed on the slider to adjust the appropriate angle, and release the valve core 703 after the adjustment is completed. At this time, the inside of the slide 701 is sealed so that all the main rods 5 remain in position;

[0044] Then, the end block 8 or the support rod 6 is pulled outward to place the workpiece 19 between the guide rods 801 on one side, and then the guide rods 801 clamp the workpiece 19 by the elastic force of the spring 11, and then the first screw rod 12 is rotated to adjust the position of the adjustment block 13, thereby driving the first conductive head 9 to adjust its position so that it can correspond to the position on the workpiece 19 that needs to be connected to electricity;

[0045] Then adjust the second screw rod 18 on the other side support arm 3 so that the round block 4 can be telescopically adjusted along the adjustment slot 301, and the corresponding guide rod 801 and guide hole 802 are both sleeved together. When the adjustment is appropriate, the first conductive head 9 and the second conductive head 10 on both sides of the workpiece 19 provide stable support, and the spring 11 and the guide hole 802 make the workpiece 19 stable on the hanger, and then hang it on the conveyor and keep the line connected;

[0046] When the hanger is moved to the electroplating tank, it is slowly immersed in the zinc plating solution. When it is completely immersed, the workpiece 19 is started and the driven wheel 15 is driven by the driving wheel 16 and the belt 17 to rotate slowly and uniformly, thereby driving the round block 4 to rotate. In this way, the entire workpiece 19 is driven to rotate while being electroplated in the zinc plating solution. After the electroplating time is up, the round block 4 as a whole maintains a deviation of 180 degrees from before immersion, and the hanger can be lifted up to carry out the subsequent electroplating process.

Claims

1. A continuous electroplating equipment, characterized in that: The invention comprises a hanging frame (1), wherein a hook (2) is arranged on the top of the hanging frame (1), a support arm (3) is fixedly installed symmetrically on the front and rear sides of the bottom surface of the middle part of the hanging frame (1), a round block (4) is rotatably installed on the inner side of the bottom of the support arm (3), a rotating groove (401) is symmetrically opened on the outer ring of the round block (4), a slider is slidably installed inside the rotating groove (401), and a sliding block is fixedly installed on the outer ring of the round block (4) located at the side of the rotating groove (401) and on the outer side of the sliding block A main rod (5), the outer end of the main rod (5) is slidably sleeved with a support rod (6), the outer end of the support rod (6) is fixedly mounted with an end block (8), a first conductive head (9) is arranged at the inner side of the end of the support rod (6), a second conductive head (10) is arranged at the inner center of the round block (4), and an arc block (7) is arranged between the side of the main rod (5) on the slider away from the rotating groove (401) and the side wall of the main rod (5) adjacently mounted on the outer ring of the round block (4).

2. A continuous electroplating equipment according to claim 1, characterized in that: A telescopic groove (501) is provided inside the main rod (5), and the support rod (6) is slidably sleeved inside the telescopic groove (501). A limit block (601) is fixedly installed at one end of the support rod (6) located inside the telescopic groove (501), and the limit block (601) slides within the telescopic groove (501). A spring (11) is connected between the bottom surface of the limit block (601) and the inner bottom wall of the telescopic groove (501).

3. A continuous electroplating equipment according to claim 1, characterized in that: The arc block (7) is provided with a slide groove (701) inside, and the open end faces the main rod (5) installed on the slider. The slide groove (701) is slidably sleeved with a slide bar (702), and one end of the slide bar (702) is fixedly connected to the side wall of the main rod (5) on the slider. The arc block (7) is provided with a valve core (703) at one end thereof which is close to being installed on the outer ring of the round block (4), and the interior of the valve core (703) is connected to the slide groove (701).

4. A continuous electroplating equipment according to claim 2, characterized in that: A limiting groove (602) is provided on the inner side of the end of the support rod (6); a first screw rod (12) is rotatably sleeved in the middle of the end block (8); the first screw rod (12) extends into the limiting groove (602) and the end is rotatably mounted on the inner wall of the limiting groove (602); an adjusting block (13) is slidably sleeved inside the limiting groove (602), and the adjusting block (13) is threadedly sleeved on the outer ring of the first screw rod (12); and the first conductive head (9) is mounted on the outer side of the adjusting block (13).

5. A continuous electroplating equipment according to claim 1, characterized in that: A guide rod (801) is fixedly mounted on the inner side of the end block (8); a guide hole (802) is provided on the inner side of the end block (8) at a position on one side of the guide rod (801); the guide rod (801) and the guide hole (802) are symmetrically positioned; and the guide rod (801) and the guide hole (802) between the end blocks (8) opposite to each other on the two support arms (3) are staggered in position.

6. A continuous electroplating equipment according to claim 1, characterized in that: An adjusting groove (301) is provided on the inner side of the bottom of the support arm (3); a rotating block (402) is fixedly mounted on one side of the round block (4), and the rotating block (402) is movably sleeved in the adjusting groove (301); a driven wheel (15) is rotatably mounted inside the bottom end of the support arm (3); a driving wheel (16) is rotatably mounted inside the middle of the bracket (1) in a front-to-back symmetrical manner; a belt (17) is sleeved between the outer rings of the driven wheel (15) and the driving wheel (16); a dual-axis motor (14) is fixedly mounted in the middle of the bracket (1), and the output shaft of the dual-axis motor (14) is fixedly connected to the driving wheel (16).

7. A continuous electroplating equipment according to claim 6, characterized in that: A rectangular groove (1501) is provided in the middle of the driven wheel (15); a rectangular block (403) is fixedly connected to the outer side of the rotating block (402); and the rectangular block (403) is limitedly slidably sleeved in the rectangular groove (1501); a second screw rod (18) is threadedly sleeved in the middle of one side of the rectangular block (403); and one end of the second screw rod (18) extends to the outer side of the support arm (3) and is limitedly rotatably sleeved with the support arm (3).

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