A tungsten-cobalt alloy surface coating process

Abstract

The present invention relates to the field of alloy processing, and in particular to a tungsten-cobalt alloy surface plating process, including an electroplating tank, a waste liquid tank, an electroplating conveyor and a water washing conveyor. The present invention uses the arc ends of the opposite support blocks on two conveying crawlers to form a circular ring with an opening on the side, and the grinding balls are placed in the circular ring. The support blocks limit the grinding balls, and the rollers are used to conveniently limit the side ends of the grinding balls to avoid the grinding balls from moving or colliding due to movement; in the present invention, after the rotating block carrying the grinding balls contacts the U-shaped rod, the U-shaped rod applies a driving force to the rotating block to make the rotating block rotate to the right, and the grinding balls roll along the surface of the rotating block. Under the cooperation of the U-shaped rod, the rotating block and the torsion spring, the grinding balls are rolled and flipped multiple times, so that the surface of the grinding balls is fully cleaned, avoiding the existence of missed parts, and improving the cleaning effect of the grinding balls.

Description

Technical Field

[0001] The invention relates to the field of alloy processing, and in particular to a tungsten-cobalt alloy surface plating process. Background Art

[0002] Tungsten-cobalt alloy can be used as a tool to process cast iron, non-ferrous metals, non-metals, heat-resistant alloys, titanium alloys and stainless steel, etc. It can also be used as an extension mold, wear-resistant parts, stamping molds and drill bits, etc. For example, the grinding balls of the spherical grinding device are made of tungsten-cobalt alloy. The main process flow of the coating of the grinding balls includes: polishing, polishing, hanging, degreasing and oil removal, water washing, (electrolytic polishing or chemical polishing), pickling and activation, (pre-plating), electroplating, water washing, (post-processing), water washing, drying, hanging, inspection and packaging. In the existing process of electroplating and washing of grinding balls, there are the following problems:

[0003] When the grinding balls are electroplated by a conveying device, they are easily deviated due to being in an unobstructed state, resulting in incomplete electroplating. Grinding balls have different sizes and require conveying devices of different sizes for transportation.

[0004] The grinding balls are washed with water in a stationary state, and the sprayed cleaning liquid can only clean part of the surface of the grinding balls, so the cleaning range is limited and the cleaning effect is poor. Summary of the invention

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: a tungsten-cobalt alloy surface coating process, a tungsten-cobalt alloy surface coating process, and the specific surface coating processing steps of the tungsten-cobalt alloy grinding ball are as follows:

[0006] S1. Pickling and activation: Each grinding ball is polished and then hung, then the grinding ball is degreased and deoiled, and then washed with water for the first time.

[0007] S2. Placement: After pickling and activation, the grinding balls are placed one by one on the upper end of the electroplating conveyor away from the waste liquid tank.

[0008] S3. Electroplating: Place a grinding ball between every two partitions, and pass the grinding balls through the electroplating solution in sequence through the electroplating conveyor.

[0009] S4, cleaning: the grinding balls removed from the electroplating solution are moved and tilted along the water washing conveyor. With the cooperation of the U-shaped rod and the rotating block, the grinding balls are pushed to flip over and continue to be cleaned. The waste liquid after cleaning falls into the waste liquid tank at the lower end, and the washed grinding balls are dried.

[0010] The surface coating processing steps of the above-mentioned tungsten-cobalt alloy grinding balls need to be completed by the cooperation of an electroplating tank, a waste liquid tank, an electroplating conveyor and a water washing conveyor. Two supports are arranged on both sides of the electroplating tank, and the upper ends of the opposite surfaces of the two supports arranged on the left and right are hinged with inclined plates, and the lower ends of the two inclined plates opposite to each other on the left and right are hinged with a horizontal plate, which is located in the electroplating tank, and the end of the inclined plate away from the horizontal plate is inclined upward, an electroplating conveyor is arranged between the horizontal plates, a water washing conveyor is arranged on the right side of the electroplating conveyor, and an inclined guide plate is arranged between the electroplating conveyor and the water washing conveyor.

[0011] The electroplating conveying device includes an electroplating rotating shaft, a conveying crawler, and a conveying fixed belt. The two ends of the inclined plate and the opposite sides of the front and rear distributed supports are provided with electroplating rotating shafts. The conveying fixed belt is commonly connected between the electroplating rotating shafts located in the left and right directions. A plurality of round rods are evenly fixed on the opposite sides of the conveying fixed belt. The conveying crawler is commonly connected between the round rods on the same conveying fixed belt. A plurality of through holes are evenly opened on the conveying crawler. The number and position of the through holes and the round rods are consistent, and the round rods are equidistantly distributed along the circumference of the conveying fixed belt. The through holes are slidably connected to the round rods. A plurality of evenly distributed support blocks are provided on the opposite surfaces of the two conveying crawlers. The ends of the two opposite support blocks away from the conveying crawlers are arc-shaped, and the arc-shaped ends of the opposite support blocks on the two conveying crawlers form a circular ring with an opening on the side.

[0012] Preferably, an inclined guide plate is arranged between the electroplating conveying device and the water washing conveying device, and a support rod is hingedly connected to the upper end of the support close to the inclined plate, and the other end of the support rod is slidably connected to a moving rod with a telescopic structure, and the moving rod is clamped in a circular groove opened on the side of the inclined plate close to the support, and the circular grooves are distributed equidistantly from left to right along the inclined plate, and a circular protrusion is arranged on the upper end of the side of the inclined plate away from the moving rod, and a screw rod is connected to the middle thread on the opposite sides of the circular protrusions arranged front and back, and an L-shaped rod is rotatably connected to the screw rod, and the other end of the L-shaped rod is slidably connected to a slide groove opened on the side of the horizontal plate away from the electroplating tank.

[0013] Preferably, the lower end of the inclined plate close to the horizontal plate is rotatably connected to the first rotating wheel via an intermediate rod, and the first rotating wheel abuts against the lower end surface of the conveying fixed belt. The side of the circular protrusion away from the screw is rotatably connected to the second rotating wheel via the middle rod, and the second rotating wheel abuts against the upper end surface of the conveying fixed belt.

[0014] Preferably, a plurality of sliders are equidistantly arranged on the outer side of the conveyor belt. The sliders are in a convex shape with the protruding end facing the inside of the conveyor belt. A partition is arranged on the slider. Both sides of the partition are arc-shaped. A sliding hole is opened at the lower end of the partition. The sliding hole is slidably connected between two opposite sliders on the two conveyor belts. Clamping blocks are arranged at the side ends of the partition. Sieve holes are opened on the partition. An elastic net is sleeved on the partition. The side end of the elastic net is clamped on the clamping block. A roller is arranged between two adjacent partitions on the same conveyor belt. The roller is rotatably connected to the outer side of the conveyor belt. The number of through holes of the slider and the roller is the same, and the support block and the roller correspond one by one.

[0015] Preferably, on both sides of the horizontal sections of the two conveyor belts, on the side close to the support, a U-shaped moving plate is slidably connected. A moving hole block is opened on the opposite surfaces of the horizontal sections of the moving plate. An annular protrusion corresponding to the position of the moving hole block and slidably connected to the moving hole block is arranged on the outer surface of the conveyor belt. The vertical section of the moving plate is located between the conveyor fixed belt and the support. A threaded hole is opened in the middle of the vertical section of the moving plate. The two front and back opposite moving plates are respectively threadedly connected to both sides of a threaded rotating rod provided with two threads in opposite directions. The threaded rotating rod is rotatably connected between the supports.

[0016] Preferably, the water washing conveyor device includes a conveyor grid belt connected between two water washing rotating shafts. The water washing rotating shaft close to the electroplating conveyor device is rotatably connected to the support close to the waste liquid tank. The water washing rotating shaft far from the electroplating conveyor device is rotatably connected to the fixed seats symmetrically arranged before and after the right end of the waste liquid tank. The electroplating rotating shaft and the water washing rotating shaft are connected by a belt transmission mechanism. A spraying device is arranged in the middle of the upper end of the conveyor grid belt. The spraying device includes a plurality of spray heads. The plurality of spray heads are evenly arranged from left to right. The upper ends of the spray heads are commonly connected to a fixing plate. The upper end of the fixing plate is connected to the upper end of the support on the left rear side of the waste liquid tank through a connecting rod. The spray heads are connected to an existing external spraying machine.

[0017] Preferably, two front and back opposite arc-shaped protrusions are arranged on the outer side of the conveyor grid belt. A plurality of rotating holes are opened on the conveyor grid belt. The plurality of rotating holes are equidistantly distributed along the circumference of the conveyor grid belt. A rotating block is rotatably connected to each rotating hole through a long rod and a torsion spring. The rotating block is triangular. The horizontal cross-section of the two water washing rotating shafts is in a工字 shape. U-shaped rods are arranged inside the conveyor grid belt on the side close to the electroplating conveyor device, and are evenly arranged at equal intervals from left to right. The U-shaped rods are fixed on two opposite supports close to the waste liquid tank.

[0018] The beneficial effects of the present invention are as follows: 1. For a tungsten-cobalt alloy surface plating process designed by the present invention, the arc-shaped ends of the opposite support blocks on the two conveyor belts form a ring with an opening on the side. The grinding balls are placed inside the ring. The support blocks limit the grinding balls. The rollers facilitate the lateral limitation of the grinding balls, avoiding the movement of the grinding balls or collisions caused by movement.

[0019] In the present invention, the rotation of the threaded rotating rod drives the two relative moving plates to move toward each other, which is convenient for changing the spacing between the two conveying crawlers, so that the spacing between the two relative support blocks is changed, thereby achieving the support limit of grinding balls of different sizes and specifications using the support blocks.

[0020] In the present invention, after the rotating block carrying the grinding balls contacts the U-shaped rod, the U-shaped rod applies a driving force to the rotating block to make the rotating block rotate to the right, and the grinding balls roll along the surface of the rotating block. With the cooperation of the U-shaped rod, the rotating block and the torsion spring, the grinding balls roll and flip multiple times, thereby making the surface of the grinding balls fully cleaned, avoiding missing parts and improving the cleaning effect of the grinding balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a process flow chart of the present invention.

[0023] Figure 2 It is a three-dimensional diagram of the present invention.

[0024] Figure 3 It is a top plan view of the present invention.

[0025] Figure 4 yes Figure 3 AA section plan view.

[0026] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0027] Figure 6 yes Figure 3 AA section three-dimensional diagram.

[0028] Figure 7 It is a three-dimensional diagram of the electroplating conveying device and the water washing conveying device in the present invention.

[0029] Figure 8 It is a three-dimensional diagram of the support, inclined plate and cross plate in the present invention.

[0030] Fig. 9 It is a three-dimensional diagram of the water washing conveying device in the present invention.

[0031] Fig.10 It is an exploded three-dimensional diagram of a partial structure of the electroplating conveying device in the present invention.

[0032] Fig.11 It is a three-dimensional diagram of the moving plate and the threaded rotating rod in the present invention.

[0033] Fig.12It is an exploded three-dimensional diagram of the partition and the elastic net in the present invention.

[0034] Fig.13 yes Figure 6 Enlarged view of point C in the middle.

[0035] Fig.14 yes Fig.10 Enlarged view of point D in the middle.

[0036] In the figure: 1, electroplating tank; 11, support; 12, inclined plate; 13, horizontal plate; 14, fixed seat; 15, circular protrusion; 2, waste liquid tank; 3, electroplating conveyor; 31, electroplating shaft; 32, conveyor fixed belt; 33, conveyor crawler; 34, round rod; 35, through hole; 36, roller; 37, slider; 38, support block; 4, water washing conveyor; 41, conveyor grid belt; 42, arc protrusion; 43, rotating hole; 44, rotating block; 45, long rod; 46, U-shaped rod; 47, water washing shaft; 5, partition; 51, block; 52, elastic net; 53, sliding hole; 6, moving plate; 61, moving hole block; 62, threaded rotating rod; 7, spraying device; 71, spraying head; 72, connecting rod; 8, supporting rod; 81, screw rod; 82, L-shaped rod; 83, slide groove; 84, No. 1 rotating wheel; 85, No. 2 rotating wheel; 861, center rod; 86, middle rod; 87, guide plate. Implementation

[0037] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0038] See also Figure 1 and Figure 2 , a tungsten-cobalt alloy surface coating process, the specific surface coating processing steps of tungsten-cobalt alloy grinding balls are as follows:

[0039] S1. Pickling and activation: Each grinding ball is polished and then hung, then the grinding ball is degreased and deoiled, and then washed with water for the first time.

[0040] S2. Placement: After pickling and activation, the grinding balls are placed one by one on the upper end of the electroplating conveyor 3 away from the waste liquid tank.

[0041] S3, electroplating: a grinding ball is placed between every two partitions 5, and the grinding balls are passed through the electroplating solution in sequence through the electroplating conveyor 3.

[0042] S4, cleaning: The grinding balls removed from the electroplating solution are moved and tilted along the water washing conveyor 4. With the cooperation of the U-shaped rod 46 and the rotating block 44, the grinding balls are pushed to flip over and continue to be cleaned. The waste liquid after cleaning falls into the waste liquid tank 2 at the lower end, and the washed grinding balls are dried.

[0043] The surface coating processing steps of the tungsten-cobalt alloy grinding balls need to be completed by the cooperation of the electroplating tank 1, the waste liquid tank 2, the electroplating conveying device 3 and the water washing conveying device 4.

[0044] See also Figure 2 , Figure 3 and Figure 4 Two supports 11 are provided on the left and right sides of the electroplating tank 1. The upper ends of the opposite surfaces of the two supports 11 arranged on the left and right are hinged with inclined plates 12, and the lower ends of the two inclined plates 12 opposite to each other on the left and right are hinged with a horizontal plate 13. The horizontal plate 13 is located in the electroplating tank 1, and the end of the inclined plate 12 away from the horizontal plate 13 is inclined upward, and an electroplating conveying device 3 is provided between the horizontal plates 13.

[0045] See also Figure 7 and Figure 8 The upper end of the support 11 close to the inclined plate 12 is hinged with a support rod 8, and the other end of the support rod 8 is slidably connected to a moving rod of a telescopic structure. The moving rod is clamped in a circular groove opened on the side of the inclined plate 12 close to the support 11, and the circular grooves are distributed equidistantly from left to right along the inclined plate 12. When the moving rod is clamped in the circular groove, it is convenient to fix the support 11 and the inclined plate 12, pull the moving rod out in the direction away from the circular groove, and then turn the inclined plate 12 to the corresponding inclination angle, then rotate the support rod 8, and move the moving rod to the corresponding position, and insert the moving rod into the corresponding inclined plate 12 in the circular groove again for fixing. A plurality of circular grooves are provided to adapt to the multi-angle changes of the inclined plate 12, so that the inclined plate 12 can always be fixed.

[0046] A circular protrusion 15 is provided at the upper end of the inclined plate 12 on the side away from the moving rod, and a screw 81 is connected to the middle thread on the opposite side of the circular protrusions 15 arranged front to back, and an L-shaped rod 82 is rotatably connected to the screw 81. The other end of the L-shaped rod 82 is slidably connected to a slide groove 83 opened on the side of the cross plate 13. The inclined plate 12 and the cross plate 13 are hinged, and the inclined plate 12 and the cross plate 13 are conveniently fixed through the cooperation of the screw 81 and the L-shaped rod 82.

[0047] When the screw rod 81 rotates in the direction away from the circular protrusion 15, the distance between the screw rod 81 and the circular protrusion 15 increases, which makes it easier for the loose L-shaped rod 82 to rotate around the screw rod 81, move out the moving rod, and then rotate the inclined plate 12, which drives the circular protrusion 15 to rotate synchronously, and the L-shaped rod 82 slides along the slide groove 83. When the inclined plate 12 rotates downward, the cross plate 13 moves vertically downward synchronously, and the support 11 moves relatively horizontally, and the distance between the supports 11 decreases. Conversely, the cross plate 13 moves vertically upward synchronously, and the distance between the supports 11 increases. When the distance of the L-shaped rods 82 on both sides moving along the slide groove 83 is adjusted, When the screw 81 is tightened, the screw 81 is turned again to facilitate tightening the screw 81, thereby facilitating fixing the L-shaped rod 82 between the screw 81 and the circular protrusion 15, facilitating fixing the cross plate 13 and the inclined plate 12, and ensuring that the cross plate 13 is horizontal. At this time, the movable rod is pushed in the direction close to the circular groove to fix the support rod 8 between the support 11 and the inclined plate 12. Through the cooperation of the support rod 8 and the L-shaped rod 82, the cross plate 13 and the two inclined plates 12 between the two supports 11 on the same side can be fixed, so that the spacing between the two supports 11 and the vertical distance from the cross plate 13 to the bottom surface of the support 11 can be adjusted according to needs.

[0048] See also Figure 6 , Figure 7 and Figure 8 The electroplating conveying device 3 includes an electroplating shaft 31, a conveying crawler belt 33, and a conveying fixed belt 32. The electroplating shafts 31 are arranged at both ends of the inclined plate 12 and on the opposite sides of the front and rear distributed supports 11. The electroplating shafts 31 located in the left and right directions are commonly connected with a conveying fixed belt 32, which is convenient for the grinding balls to be put in and transported in sequence from the previous working step, and at the same time, it is convenient for the grinding balls to be transported to the next process, namely the water washing working step.

[0049] The lower end of the inclined plate 12 close to the cross plate 13 is rotatably connected to the first rotating wheel 84 through the intermediate rod 86, and the first rotating wheel 84 abuts against the lower end surface of the conveying fixed belt 32. The side of the circular protrusion 15 away from the screw 81 is rotatably connected to the second rotating wheel 85 through the middle rod 861, and the second rotating wheel 85 abuts against the upper end surface of the conveying fixed belt 32.

[0050] The first rotating wheel 84 and the second rotating wheel 85 do not affect the rotation of the conveyor fixed belt 32. The first rotating wheel 84 and the second rotating wheel 85 are in close contact with the surface of the conveyor fixed belt 32, thereby ensuring that the conveyor fixed belt 32 is in close contact with each electroplating shaft 31, which facilitates the stable transportation of the grinding balls into the electroplating solution and then removed.

[0051] See also Figure 7 and Fig.10A plurality of round rods 34 are evenly fixed on opposite sides of the conveyor fixed belt 32, and a conveyor crawler 33 is commonly connected between the round rods 34 on the same conveyor fixed belt 32. A plurality of through holes 35 are evenly opened on the conveyor crawler 33, and the number and position of the through holes 35 and the round rods 34 are consistent, and the round rods 34 are evenly distributed along the circumference of the conveyor fixed belt 32. The through holes 35 are slidably connected to the round rods 34, so that the conveyor crawler 33 can move back and forth along the length direction of the round rods 34. The rotating conveyor fixed belt 32 drives the conveyor crawler 33 to rotate through the round rods 34, so as to facilitate the transportation of the grinding balls.

[0052] See also Figure 5 , Fig.10 and Fig.14 The opposing surfaces of the two conveyor belts 33 are provided with a plurality of evenly distributed support blocks 38. The ends of the two opposing support blocks 38 away from the conveyor belts 33 are arc-shaped, and the arc-shaped ends of the opposing support blocks 38 on the two conveyor belts 33 form a circular ring with an opening on the side. The grinding balls are placed in the circular ring, and the support blocks 38 limit the grinding balls to prevent the grinding balls from moving or colliding due to movement.

[0053] See also Figure 5 , Fig.10 , Fig.12 , Fig.13 and Fig.14 A plurality of sliders 37 are arranged at equal distances on the outer side of the conveying crawler 33. The sliders 37 are convex-shaped structures with the convex ends facing the inside of the conveying crawler 33. A partition 5 is arranged on the slider 37. The two sides of the partition 5 are arc-shaped. A sliding hole 53 is opened at the lower end of the partition 5. The sliding hole 53 is slidably connected between two opposite sliders 37 on the two conveying crawlers 33. The partition 5 can only move along the length direction of the slider 37. Blocks 51 are arranged on the side ends of the partition 5. Screen holes are opened on the partition 5 to prevent the plating solution from accumulating on the partition 5. At the junction with the conveyor belt 33, an elastic net 52 is sleeved on the partition 5 to reduce the collision between the grinding balls and the partition 5 on the inclined conveyor belt 33, thereby avoiding damage to the coating. The side end of the elastic net 52 is clamped on the clamping block 51 to facilitate the fixation of the elastic net 52. Rollers 36 are provided between two adjacent partitions 5 on the same conveyor belt 33. The rollers 36 are rotatably connected to the outer side of the conveyor belt 33. The number of sliders 37 and rollers 36 and through holes 35 is the same, and the support blocks 38 and rollers 36 correspond one to one.

[0054] When the two conveyor belts 33 move towards each other simultaneously, two opposite sliders 37 on the two conveyor belts 33 slide within the sliding holes 53 of the partition plate 5. The clamping blocks 51 are fixed at the openings on both sides of the sliding holes 53, thereby ensuring that when the distance between the two conveyor belts 33 changes, the partition plate 5 will not fall off the conveyor belts 33. The rollers 36 between the two partition plates 5 facilitate the lateral limitation of the grinding balls. At the same time, when the grinding balls are located on the inclined conveyor belts 33, the friction on the surface of the grinding balls can be reduced by the rolling rollers 36.

[0055] Refer to Figure 7 、 Fig.10 and Fig.11 As shown in, on one side of the horizontal sections on both sides of the two conveyor belts 33 close to the support 11, there are sliding connections with U-shaped moving plates 6. Opposite surfaces of the horizontal sections of the moving plates 6 are provided with moving hole blocks 61. On the outer surface of the conveyor belt 33, there are annular protrusions corresponding to the positions of the moving hole blocks 61 and slidingly connected to the moving hole blocks 61, which facilitates the movement of the moving plate 6 to drive the conveyor belt 33 to move. The setting of the moving hole blocks 61 enables the movement of the moving plate 6 not to interfere with the rotation of the conveyor belt 33. The vertical sections of the moving plates 6 are located between the conveyor fixed belt 32 and the support 11, so that when the round rod 34 drives the conveyor belt 33 to rotate, the round rod 34 and the moving plate 6 do not interfere with each other.

[0056] In the middle of the vertical section of the moving plate 6, there is a threaded hole, and the two moving plates 6 that are directly opposite to each other in the front and back are respectively threadedly connected to both sides of a threaded rotating rod 62 provided with two threads in opposite directions. The threaded rotating rod 62 is rotatably connected between the supports 11. When the threaded rotating rod 62 is driven to rotate by an external drive, the two opposite moving plates 6 are driven to move towards each other by the threaded rotating rod 62, thereby driving the two conveyor belts 33 to move towards each other through the moving plates 6, facilitating the change of the distance between the two conveyor belts 33, enabling the distance between two opposite support blocks 38 to be changed, and facilitating the transportation of grinding balls of different specifications. When the distance between the two conveyor belts 33 becomes larger (smaller), the opening ring formed between the two opposite support blocks 38 becomes larger (smaller), facilitating the support of the lower ends of the large-sized (small-sized) grinding balls. At the same time, the two opposite sliders 37 move along the sliding holes 53 towards the direction close to (away from) the support 11, and the partition plate 5 does not affect the movement of the conveyor belt 33.

[0057] Refer to Figure 2 、 Figure 6 and Figure 7A water washing conveyor 4 is arranged on the right side of the electroplating conveyor 3, and an inclined guide plate 87 is arranged between the electroplating conveyor 3 and the water washing conveyor 4. The height of the water washing conveyor 4 is lower than the height of the horizontal sections on both sides of the electroplating conveyor 3, so that the grinding balls can be smoothly moved from the side end of the electroplating conveyor 3 close to the water washing conveyor 4 to the upper end of the water washing conveyor 4 through the guide plate 87. A waste liquid tank 2 is arranged at the lower end of the water washing conveyor 4 to collect the waste liquid after washing.

[0058] See also Figure 6 , Figure 7 , Figure 8 and Fig. 9 The water washing conveying device 4 includes a conveying grid belt 41, and a spraying device 7 is arranged in the middle of the upper end of the conveying grid belt 41. The spraying device 7 includes a plurality of spraying heads 71, and the plurality of spraying heads 71 ​​are evenly arranged from left to right. The upper ends of the spraying heads 71 ​​are commonly connected with a fixing plate, and the upper end of the fixing plate is connected to the upper end of the support 11 on the left rear side of the waste liquid tank 2 through a connecting rod 72. The spraying head 71 is connected to an existing external spraying machine, and the grinding balls are cleaned by using the spraying machine and the spraying head 71. The cleaned waste liquid falls into the waste liquid tank 2 along the grid groove on the conveying grid belt 41.

[0059] See also Figure 6 and Fig.13 The outer side surface of the conveying grid belt 41 is provided with two front and rear opposite arc-shaped protrusions 42, which are convenient for limiting the grinding balls and preventing the grinding balls from moving sideways. A plurality of rotating holes 43 are opened on the conveying grid belt 41, and the plurality of rotating holes 43 are evenly distributed along the circumference of the conveying grid belt 41. The rotating holes 43 are rotatably connected with rotating blocks 44 through long rods 45 and torsion springs. The rotating blocks 44 are triangular in shape. The upper end surface of the rotating block 44 at the upper end of the conveying grid belt 41 remains horizontal. The conveying grid belt 41 is connected between two water washing shafts 47. The horizontal cross-sections of the two water washing shafts 47 are I-shaped, so that when the rotating block 44 moves close to the water washing shaft 47, the rotating block 44 can move from the middle of the water washing shaft 47.

[0060] The water washing shaft 47 close to the electroplating conveying device 3 is rotatably connected to the support 11 close to the waste liquid tank 2, and the water washing shaft 47 far from the electroplating conveying device 3 is rotatably connected to the fixed seat 14 symmetrically arranged front and back at the right end of the waste liquid tank 2. The electroplating shaft 31 and the water washing shaft 47 are connected by a belt transmission mechanism, and one end of one of the electroplating shafts 31 is connected to an external drive motor. The external drive motor and the belt transmission mechanism can drive the five electroplating shafts 31 and the two water washing shafts 47 to rotate synchronously in the same direction, thereby realizing the electroplating conveying and cleaning conveying of the grinding balls.

[0061] The inside of the conveying grid belt 41 on one side close to the electroplating conveying device 3 is provided with U-shaped rods 46 evenly arranged from left to right at equal distances, and the U-shaped rods 46 are fixed on two opposite supports 11 close to the waste liquid tank 2.

[0062] The grinding balls move from the guide plate 87 to the upper end of the conveying grid belt 41 until they fall on the upper end of the rotating block 44. At this time, the rotating block 44 carrying the grinding balls does not rotate. When the conveying grid belt 41 is started, the conveying grid belt 41 moves away from the electroplating tank 1 with the grinding balls. At this time, the rotating block 44 moves away from the electroplating tank 1 along the conveying grid belt 41. After the rotating block 44 carrying the grinding balls contacts the U-shaped rod 46, the U-shaped rod 46 exerts a force on the rotating block 44 toward the electroplating conveyor 3. The rotating block 44 rotates to the right side of the electroplating tank 1 under the driving force of the rotating block 44. During this process, the grinding balls roll along the surface of the rotating block 44. After the rotating block 44 and the U-shaped rod 46 are separated, the rotating block 44 rotates under the action of the torsion spring. During the process of the grinding balls continuing to be transported from the left side to the right side of the conveying grid belt 41, the grinding balls roll and flip multiple times under the cooperation of the rotating block 44, the U-shaped rod 46 and the torsion spring, thereby making the surface of the grinding balls fully cleaned, avoiding missing parts and improving the cleaning effect of the grinding balls.

[0063] Working principle: S1. Pickling and activation: Each grinding ball is polished and then hung, then the grinding ball is degreased and deoiled, and then washed with water for the first time.

[0064] S2. Placement: Pull out the moving rod in the direction away from the circular groove, turn the screw rod 81 in the direction away from the circular protrusion 15, and then turn the inclined plate 12. The inclined plate 12 drives the circular protrusion 15 to synchronously rotate the L-shaped rod 82 to slide along the slide groove 83. When the L-shaped rods 82 on both sides move the same distance along the slide groove 83, turn the screw rod 81 again to tighten the screw rod 81, so as to fix the L-shaped rod 82 between the screw rod 81 and the circular protrusion 15, and fix the horizontal plate 13 and the inclined plate 12. After the horizontal plate 13 is horizontal, the support rod 8 is rotated to move the moving rod to the corresponding position, and the moving rod is inserted into the circular groove again to fix the inclined plate 12. The horizontal plate 13 and the two inclined plates 12 between the two supports 11 on the same side are conveniently fixed through the cooperation of the support rod 8 and the L-shaped rod 82, so that the spacing between the two supports 11 and the vertical distance from the horizontal plate 13 to the bottom surface of the support 11 can be adjusted according to the needs, so as to ensure that the electroplating conveyor 3 can work when the grinding balls are completely immersed in the electroplating solution;

[0065] The threaded rotating rod 62 is driven to rotate by an external drive, and the two relative moving plates 6 are driven to move toward each other, so that the two conveying crawlers 33 are driven to move toward each other along the length direction of the round rod 34 by the moving plates 6, so as to change the spacing between the two conveying crawlers 33, so that the spacing between the two relative support blocks 38 is changed, so as to facilitate the transportation of grinding balls of different specifications. When the spacing between the two conveying crawlers 33 becomes larger (smaller), the open circular ring between the two relative support blocks 38 becomes larger (smaller), so as to facilitate the support at the lower end of the large (small) grinding ball. At the same time, the two relative sliders 37 move along the sliding hole 53 toward (away from) the support 11, and the partition plate 5 does not affect the relative movement of the two conveying crawlers 33.

[0066] After pickling and activation, the grinding balls are placed one by one on the upper end of the electroplating conveying device 3 away from the waste liquid tank 2. The electroplating shaft 31 and the water washing shaft 47 are connected by a belt transmission mechanism. One end of one of the electroplating shafts 31 is connected to an external drive motor. The external drive motor and the belt transmission mechanism can drive the five electroplating shafts 31 and the two water washing shafts 47 to rotate synchronously in the same direction, so that the grinding balls move from the electroplating tank 1 toward the waste liquid tank 2, thereby realizing the electroplating conveyance and cleaning conveyance of the grinding balls.

[0067] S3. Electroplating: In the started state, a grinding ball is placed at a fixed position at the upper end of the horizontal section of the electroplating conveyor 3 away from one side of the waste liquid tank 2 at the same interval, so that each grinding ball is located between the two partitions 5 at the upper end of the electroplating conveyor 3. The rotating conveyor fixed belt 32 drives the conveyor track 33 to rotate through the round rod 34. The grinding ball is placed between the two conveyor track 33. The arc ends of the supporting blocks 38 opposite to each other on the two conveyor track 33 form a circular ring with an opening on the side. The grinding ball is placed in the circular ring. The supporting blocks 38 limit the grinding ball to prevent the grinding ball from moving and colliding. The roller 36 is convenient for limiting the side end of the grinding ball. At the same time, when the grinding ball is located on the inclined conveyor track 33, the friction on the surface of the grinding ball can be reduced by rolling the roller 36. The elastic net 52 on the outer side of the partition 5 reduces the collision of the grinding ball, thereby preventing the plating layer of the grinding ball from being damaged. The grinding balls are sequentially passed through the electroplating liquid of the electroplating tank 1 and then removed through the rotation of the electroplating conveyor 3.

[0068] S4, cleaning: the grinding balls removed from the electroplating solution are smoothly moved from the side end of the electroplating conveyor 3 close to the water washing conveyor 4 to the upper end of the water washing conveyor 4 through the guide plate 87, until they fall on the upper end of the rotating block 44. After the rotating block 44 carrying the grinding balls contacts the U-shaped rod 46, the U-shaped rod 46 applies a driving force to the rotating block 44 toward the electroplating conveyor 3. Under the action of this force, the rotating block 44 rotates to the right side of the electroplating tank 1. During this process, the grinding balls roll along the surface of the rotating block 44. After the rotating block 44 and the U-shaped rod 46 are separated, the rotating block 44 rotates under the action of the torsion spring. During the process of the grinding balls continuing to be transported from the left side to the right side of the conveying grid belt 41, the rotating block 44, the U-shaped rod 46 and the torsion spring cooperate to roll and flip multiple times, so that the surface of the grinding balls is fully cleaned. The cleaned waste liquid falls into the waste liquid tank 2 at the lower end along the grid and the rotating hole 43, and the washed grinding balls are dried.

[0069] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A surface coating process for tungsten-cobalt alloy, specifically, the surface coating processing steps for tungsten-cobalt alloy grinding balls are as follows: S1. Pickling and activation: After each grinding ball is polished, it is hung on a hook, then degreased and defatted, and then subjected to primary water washing; S2. Placement: After pickling and activation, the grinding balls are sequentially placed on the upper end of the electroplating conveyor device on the side away from the waste liquid tank; S3. Electroplating: One grinding ball is placed between every two partitions, and the grinding balls are sequentially passed through the electroplating solution by the electroplating conveyor device; S4. Cleaning: The grinding balls removed from the electroplating solution move and tilt along the water washing conveyor device. Under the cooperation of the U-shaped rod and the rotating block, the grinding balls are pushed to flip and continue to be cleaned. The waste liquid after cleaning falls into the waste liquid tank at the lower end, and the grinding balls after water washing are dried; The surface coating processing steps of the above-mentioned tungsten-cobalt alloy grinding balls need to be completed by the coordination of an electroplating tank, a waste liquid tank, an electroplating conveyor and a water washing conveyor, which are characterized by: Two supports are provided on both the left and right sides of the electroplating tank. The upper ends of the opposite surfaces of the two supports arranged left and right are each hinged with an inclined plate. The lower ends of the two inclined plates facing each other directly are jointly hinged with a cross plate. The cross plate is located inside the electroplating tank. One end of the inclined plate away from the cross plate is inclined upward. An electroplating conveyor device is arranged between the cross plates. A water washing conveyor device is arranged on the right side of the electroplating conveyor device. An inclined guide plate is arranged between the electroplating conveyor device and the water washing conveyor device; The electroplating conveyor device includes an electroplating rotating shaft, a conveyor track, and a conveyor fixing belt. Electroplating rotating shafts are provided at both ends of the inclined plate and on the opposite sides of the supports distributed front and back. A conveyor fixing belt is jointly connected between the electroplating rotating shafts in the left-right direction. A plurality of round rods are uniformly fixed on the opposite sides of the conveyor fixing belt. A conveyor track is jointly connected between the round rods on the same conveyor fixing belt. A plurality of sliders are equidistantly arranged on the outer surface of the conveyor track. Partition plates are arranged on the sliders. The two sides of the partition plate are arc-shaped. A roller is arranged between every two adjacent partition plates on the same conveyor track. The roller is rotatably connected to the outer surface of the conveyor track. A plurality of through holes are uniformly formed in the conveyor track. The number and positions of the through holes and the round rods are the same, and the round rods are equidistantly distributed along the circumference of the conveyor fixing belt. The through holes are slidably connected to the round rods. A plurality of uniformly distributed support blocks are arranged on the opposite surfaces of the two conveyor tracks. The ends of the two opposite support blocks away from the conveyor track are arc-shaped, and the arc-shaped ends of the opposite support blocks on the two conveyor tracks form a ring with an opening on the side; C-shaped moving plates are slidably connected to both sides of the two conveyor tracks. Moving hole blocks are formed on the opposite surfaces of the horizontal sections of the moving plates. Annular protrusions slidably connected to the moving hole blocks are arranged on the outer surface of the conveyor track. A threaded hole is formed in the middle of the vertical section of the moving plate. The two moving plates are respectively threadedly connected to both sides of a threaded rotating rod with threads in two opposite directions. The threaded rotating rod is rotatably connected between the supports.

2. A tungsten-cobalt alloy surface coating process according to claim 1, characterized in that: An inclined guide plate is arranged between the electroplating conveying device and the water washing conveying device, a support rod is hingedly connected to the upper end of the support close to the inclined plate, and the other end of the support rod is slidably connected to a moving rod with a telescopic structure, the moving rod is clamped in a circular groove opened on the side of the inclined plate close to the support, the circular grooves are distributed equidistantly from left to right along the inclined plate, a circular protrusion is arranged on the upper end of the side of the inclined plate away from the moving rod, a screw rod is connected to the middle thread on the opposite sides of the circular protrusions arranged front and back, an L-shaped rod is rotatably connected to the screw rod, and the other end of the L-shaped rod is slidably connected to the slide groove opened on the side of the horizontal plate away from the electroplating tank.

3. A tungsten-cobalt alloy surface coating process according to claim 2, characterized in that: The lower end of the inclined plate close to the horizontal plate is rotatably connected to the first rotating wheel through an intermediate rod, and the first rotating wheel abuts against the lower end surface of the conveying fixed belt. The side of the circular protrusion away from the screw is rotatably connected to the second rotating wheel through the middle rod, and the second rotating wheel abuts against the upper end surface of the conveying fixed belt.

4. The tungsten-cobalt alloy surface coating process according to claim 1, characterized in that: The slider is a convex structure with the convex end facing the inside of the conveyor belt. A sliding hole is provided at the lower end of the partition, and the sliding hole is slidably connected between two opposite sliders on the two conveyor belts. Blocks are provided at the side ends of the partition, sieve holes are provided on the partition, and an elastic net is covered on the partition. The side ends of the elastic net are clamped on the block, the slider and the roller have the same number of through holes, and the support blocks and the rollers correspond one to one.

5. A tungsten-cobalt alloy surface coating process according to claim 4, characterized in that: The annular protrusion corresponds to the position of the movable hole block, and the vertical section of the movable plate is located between the conveying fixed belt and the support.

6. The tungsten-cobalt alloy surface coating process according to claim 1, characterized in that: The water washing and conveying device includes a conveying grid belt, which is connected between two water washing shafts. The water washing shaft close to the electroplating conveying device is rotatably connected to a support close to the waste liquid tank, and the water washing shaft away from the electroplating conveying device is rotatably connected to a fixed seat symmetrically arranged front and back at the right end of the waste liquid tank. The electroplating shaft and the water washing shaft are connected by a belt transmission mechanism. A spraying device is arranged in the middle of the upper end of the conveying grid belt. The spraying device includes multiple spray heads, which are evenly arranged from left to right. The upper ends of the spray heads are commonly connected to a fixed plate, and the upper ends of the fixed plate are connected to the upper end of the support on the left rear side of the waste liquid tank through a connecting rod, and the spray head is connected to an existing external sprayer.

7. A tungsten-cobalt alloy surface coating process according to claim 6, characterized in that: The outer side surface of the conveying grid belt is provided with two front and rear opposite arc-shaped protrusions, and a plurality of rotating holes are opened on the conveying grid belt, and the plurality of rotating holes are evenly distributed along the circumference of the conveying grid belt. The rotating holes are rotatably connected with rotating blocks through long rods and torsion springs, and the rotating blocks are triangular in shape. The horizontal cross-sections of the two water washing shafts are I-shaped, and the inside of the conveying grid belt close to the electroplating conveying device is provided with U-shaped rods evenly arranged from left to right at equal distances, and the U-shaped rods are fixed on two opposite supports close to the waste liquid tank.

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