A hot-dip galvanizing production line for suspension insulator caps

Abstract

The invention relates to a hot-dip galvanizing production line for an iron cap of a suspension insulator, comprising a feeding area, a galvanizing section and a post-processing area. The feeding area, the galvanizing section and the post-processing area are sequentially connected in series and arranged in a U shape, with a compact layout and reasonable space utilization. The feeding area is used for the preparation work before galvanizing a workpiece, and realizes the functions of hanging, drying and feeding the workpiece; the galvanizing section is used for hot-dip galvanizing of the workpiece, and realizes the functions of hot-dip galvanizing, centrifugation and transfer of the workpiece; the post-processing area is used for post-processing of the workpiece, and realizes the functions of blunting, water cooling, passivation and unloading of the workpiece. The iron cap can be stably galvanized at an extremely high automation level, and the problem of insufficient yield rate caused by thick and uneven zinc layer and large zinc consumption can be effectively eliminated, and the working efficiency of galvanizing the iron cap can be effectively improved.

Description

Technical Field

[0001] The invention relates to a hot-dip galvanizing production line, in particular to a hot-dip galvanizing production line for suspension insulator caps. Background Art

[0002] Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metal, alloy or other materials for aesthetics and rust prevention. The main method currently used is hot-dip galvanizing.

[0003] At present, hot-dip galvanizing of iron caps is mostly done by pure manual operation, which is labor-intensive and has a poor working environment. In the actual production process, the long-term labor of the staff causes deformation of the movements, which causes the iron caps to bump and fall, resulting in the inability to guarantee product quality and insufficient yield rate. At the same time, the iron cap is in the shape of a bowl, which is prone to ash accumulation and leakage in the bowl mouth, and has high requirements for galvanizing, making it difficult to achieve automation. Although some users have tried to use mechanized hot-dip galvanizing, there are still problems during galvanizing, resulting in unsatisfactory galvanizing effects on the iron caps, leakage, and inconvenient workpiece removal and loading. In addition, traditional hot-dip galvanizing of iron caps, to remove excess zinc liquid on the surface of the workpiece, mostly adopts the method of vibrating to remove excess zinc or knocking zinc, but both methods have the problems of incomplete removal of excess zinc, thick and uneven zinc layer, and high zinc consumption, which seriously affect the cost reduction and efficiency improvement of enterprises.

[0004] In order to solve these problems, although the annular galvanizing production line with Chinese patent announcement number CN203923358U can process a variety of workpieces, it is not dedicated to iron cap galvanizing. Its design purpose is only to improve the stability and safety of the production line. However, it has not solved the problem of how to achieve a high level of automation during iron cap galvanizing and to be able to stably and thoroughly remove excess zinc to prevent the zinc layer from being thick, uneven, and having high zinc consumption. Summary of the invention

[0005] In view of the problems existing in the above-mentioned prior art, the present invention provides a hot-dip galvanizing production line for the iron caps of suspension insulators, which can stably galvanize the iron caps with an extremely high level of automation and can effectively eliminate the problems of insufficient yield caused by thick and uneven zinc layer and high zinc consumption, and can effectively improve the work efficiency of galvanizing the iron caps.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a hot-dip galvanizing production line for suspension insulator iron caps, comprising a loading area, a galvanizing section and a post-processing area, wherein the loading area, the galvanizing section and the post-processing area are connected in series in sequence, wherein the loading area comprises a manual hanging platform, a transition conveyor, a dryer, a turning conveyor, a pick-up conveyor and a loading truss manipulator, wherein the manual hanging platform is connected to one end of the dryer through a transition conveyor, and the other end of the dryer is connected to the front end of the turning conveyor, and the rear end of the turning conveyor is connected to the pick-up conveyor, and a loading truss manipulator is provided on the outside of the pick-up conveyor near the galvanizing section, and after the pre-processing of the workpiece is completed, it is placed in a storage hopper, and the worker stands on the manipulator to pick up the workpiece. On both sides of the workpiece hanging platform, first use the inner tooling to take the hanging parts to the platform, then take the workpieces in the hopper and hang them on the inner tooling. After one tooling is full, the tooling and the workpieces are manually pushed into the transition conveyor. The transition conveyor is running to transport the tooling to the dryer. After the pre-treatment, there will be liquid on the surface of the workpiece, which needs to be dried before galvanizing; after the workpiece passes through the dryer, it enters the turning conveyor to change the conveying direction and speed up the conveying speed; after the workpiece passes through the turning conveyor, it enters the pick-up conveyor and is transported to a fixed position to stop, waiting for the loading truss manipulator to grab it; when the workpiece reaches the grabbing position, the loading truss manipulator descends, grabs the inner tooling and workpiece, lifts, walks to the loading position, and waits for loading;

[0007] The galvanizing section includes a centrifuge, a guide rail, a material unloading positioning frame, a galvanizing robot, an external tooling, a position for placing the external tooling, a material loading positioning frame, a zinc pot, a steel structure platform, a smoking hood and a rotary galvanizing device. The zinc pot is installed on the ground, and guide rails are installed on both sides of the zinc pot respectively. The guide rails are arranged in parallel with the loading area and the post-processing area, and extend outward to the rear of the zinc pot. The steel structure platform and the smoking hood span the zinc pot and can move along the guide rails. A galvanizing robot is arranged on the ground in front of the zinc pot, and a material unloading positioning frame and a material loading positioning frame are installed on the ground on both sides of the galvanizing robot respectively. An external tooling position is provided at the loading positioning frame, and two to three external tools are provided on the upper surface of the external tooling position. The centrifuge is fixedly installed in the middle of the steel structure platform and the smoking hood by a bracket, a rotary galvanizing device is provided directly below the centrifuge, and the external tooling position is located at the working position of the loading truss manipulator Within the range, the galvanizing robot grabs the outer tooling and walks to the loading position. The loading truss manipulator descends and puts the inner tooling and the workpiece into the outer tooling. Then the loading truss manipulator rises to a certain height. The galvanizing robot grabs the inner and outer tooling and puts them into the rotary galvanizing device for hot-dip galvanizing. The rotary galvanizing device can be raised and lowered and rotated. During the hot-dip galvanizing process, it is necessary to raise and lower while rotating back and forth to completely shake out the zinc ash inside the workpiece and ensure that the workpiece fully reacts with the zinc liquid. When the galvanizing set time is reached, the rotary galvanizing device rotates the tooling to the bottom of the centrifuge. At this time, the centrifuge descends, and the outer tooling together with the inner tooling and the workpiece are grabbed by the clamp, lifted to a certain height, and high-speed rotation and centrifugation are started. After the centrifugation is completed, the galvanizing robot grabs the tooling and workpiece completed by centrifugation and runs to the loading end of the post-processing area.

[0008] The post-processing area includes a post-processing truss manipulator 1, a trough body, a lifting bracket, a material unloading platform, a material unloading conveyor and a post-processing truss manipulator 2. A post-processing area loading end is provided below the post-processing truss manipulator of the post-processing area. The post-processing truss manipulator moves back and forth between the post-processing area loading end and the front half of the trough body through a slide rail. The rear half of the trough body is equipped with a post-processing truss manipulator 2 through a bracket. The material unloading platform is installed within the working range of the post-processing truss manipulator 2, and the material unloading platform is connected to the material unloading conveyor. There are two truss manipulators for post-processing.

[0009] As a further improvement of the present invention, the tank body is equipped with a deblunting tank, a water cooling tank and a passivation tank.

[0010] As a further improvement of the present invention, the water cooling tank and the passivation tank of the tank body are equipped with a lifting bracket. When the post-processing truss manipulator descends, the tooling, the inner tooling of the workpiece and the workpiece transferred by the robot are grabbed and lifted, and they walk to the deblunting station, and then they quickly descend, rise and rotate, and the inner tooling and the workpiece are quickly passed through the ammonium chloride solution, and then the inner tooling is placed on the water cooling pool lifting bracket. When the post-processing truss manipulator returns to wait for the next grabbing, the water cooling pool lifting bracket drives the tooling and the workpiece to cool down. Lifting in the tank to realize the water cooling process. After the water cooling is completed, the second post-processing truss robot descends and grabs the tooling and workpiece and walks to the passivation position, and places the workpiece and tooling on the lifting bracket of the passivation tank. The lifting bracket of the passivation tank drives the tooling and workpiece to rise and fall to realize the passivation process. After the passivation is completed, the second post-processing truss robot grabs the tooling and workpiece and walks to the unloading area, places the workpiece and tooling on the unloading platform, and then returns to perform the next grabbing task. Finally, the unloading conveyor transports the tooling with the iron cap off the line.

[0011] As a further improvement of the present invention, the galvanizing robot is a six-axis robot.

[0012] As a further improvement of the present invention, the steel structure platform and the smoke hood are integrated with a zinc smoke collection device.

[0013] Through the above scheme, the present invention has at least the following advantages: compared with the conventional manual or production line galvanizing of the iron cap, through the combination of conveyor, truss manipulator and robot, the drying, feeding, rotary galvanizing device, centrifuge, deblunting tank, water cooling tank and passivation tank are connected in series into a compact layout and small space-consuming whole, which can stably galvanize the iron cap with an extremely high level of automation, and can effectively eliminate the problem of insufficient yield caused by thick and uneven zinc layer and high zinc consumption, which can effectively improve the work efficiency of iron cap galvanizing and reduce the labor intensity of workers, effectively ensure the quality of iron cap galvanizing while reducing unnecessary waste, and has significant environmental and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of a hot-dip galvanizing production line for suspension insulator caps;

[0015] Figure 2 It is a top view of a hot-dip galvanizing production line for suspension insulator caps;

[0016] Figure 3 It is a three-dimensional diagram of the galvanizing section of a hot-dip galvanizing production line for suspension insulator caps;

[0017] In the figure: 1. Loading area, 1-1. Manual hanging platform, 1-2. Transition conveyor, 1-3. Dryer, 1-4. Turning conveyor, 1-5. Pick-up conveyor, 1-6. Loading truss manipulator, 2. Galvanizing section, 2-1. Centrifuge, 2-2. Guide rail, 2-3. Unloading positioning frame, 2-4. Galvanizing robot, 2-5. External tooling, 2-6. External tooling placement position, 2-7. Loading positioning frame, 2-8. Zinc pot, 2-9. Steel structure platform and smoke hood, 2-10. Rotary galvanizing device, 3. Post-processing area, 3-1. Post-processing truss manipulator 1, 3-2. Trough, 3-3. Lifting bracket, 3-4. Unloading platform, 3-5. Unloading conveyor, 3-6. Post-processing truss manipulator 2. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] like Figures 1 to 3As shown, a hot-dip galvanizing production line for suspension insulator iron caps comprises a loading area 1, a galvanizing section 2 and a post-processing area 3, wherein the loading area 1, the galvanizing section 2 and the post-processing area 3 are connected in series in sequence, a manual hanging platform 1-1 is connected to one end of a drying machine 1-3 through a transition conveyor 1-2, the other end of the drying machine 1-3 is connected to the front end of a turning conveyor 1-4, the rear end of the turning conveyor 1-4 is connected to a pick-up conveyor 1-5, and a loading truss manipulator 1-6 is provided on the outside of the pick-up conveyor 1-5 near the galvanizing section 2. After the pre-processing of the workpiece is completed, it is placed in a storage hopper, and workers stand on both sides of the manual hanging platform 1-1, first take the hanger to the platform with an inner tooling, and then put the inner tooling of the hopper into the platform. The workpieces are picked up and hung on the inner tooling. After a tooling is full, the tooling and the workpieces are manually pushed into the transition conveyor 1-2. The transition conveyor 1-2 is running to transport the tooling to the dryer 1-3. After the pre-treatment, there will be liquid on the surface of the workpiece, which needs to be dried before galvanizing; after the workpiece passes through the dryer 1-3, it enters the 90-degree turning conveyor 1-4 to change the conveying direction and speed up the conveying speed; after the workpiece passes through the turning conveyor 1-4, it enters the pick-up conveyor 1-5 and is transported to a fixed position to stop, waiting for the loading truss manipulator 1-6 to grab it; when the workpiece reaches the grabbing position, the loading truss manipulator 1-6 descends, grabs the inner tooling and workpiece, lifts, walks to the loading position, and waits for loading;

[0021] like Figure 2As shown, the zinc pot 2-8 is installed on the ground, and guide rails 2-2 are installed on both sides of the zinc pot 2-8. The guide rails 2-2 are arranged in parallel with the loading area 1 and the post-processing area 3, and extend to the rear of the zinc pot 2-8. The steel structure platform and the fume hood 2-9 span the zinc pot 2-8 and can move along the guide rails 2-2. A galvanizing robot 2-4 is installed on the ground in front of the zinc pot 2-8, and a feeding positioning frame 2-3 and a feeding positioning frame 2-7 are installed on the ground on both sides of the galvanizing robot 2-4. An external tooling placement position 2-6 is provided at the feeding positioning frame 2-7, and two to three external tools 2-5 are provided on the upper surface of the external tooling placement position 2-6. A centrifuge 2-1 is fixedly installed in the middle of the steel structure platform and the fume hood 2-9 through a bracket. A rotary galvanizing device 2-10 is provided directly below the centrifuge 2-1. The external tooling placement position 2-6 is within the working range of the feeding truss manipulator 1-6. The galvanizing robot 2-4 grabs Take the outer tooling and walk to the loading position, the loading truss manipulator 1-6 descends, puts the inner tooling and the workpiece into the outer tooling 2-5, and then the loading truss manipulator 1-6 rises to a certain height, and the galvanizing robot 2-4 grabs the inner and outer tooling and puts them together into the rotary galvanizing device 2-10 for hot-dip galvanizing. The rotary galvanizing device 2-10 can be raised and lowered and rotated. During the hot-dip galvanizing process, it is necessary to raise and lower while rotating back and forth to completely shake out the zinc ash inside the workpiece, and at the same time, ensure that the workpiece fully reacts with the zinc liquid; when the galvanizing set time is reached, the rotary galvanizing device 2-10 rotates the tooling to the bottom of the centrifuge 2-1. At this time, the centrifuge 2-1 descends, and uses the clamp to grab the outer tooling together with the inner tooling and the workpiece, lifts them to a certain height, and starts high-speed rotation centrifugation. After the centrifugation is completed, the galvanizing robot 2-4 grabs the tooling and workpiece completed by centrifugation and runs them to the loading end of the post-processing area 3;

[0022] like Figure 3 As shown, a post-processing area loading end is provided below the post-processing truss manipulator 3-1 of the post-processing area 3, and the post-processing truss manipulator 3-1 moves back and forth between the post-processing area loading end and the front half of the trough body 3-2 through a slide rail, and the rear half of the trough body 3-2 is equipped with a second post-processing truss manipulator 3-6 through a bracket, and a unloading platform 3-4 is installed within the working range of the second post-processing truss manipulator 3-6, and the unloading platform 3-4 is connected to the unloading conveyor 3-5; there are two truss manipulators for post-processing.

[0023] In order to integrate the production line and make the iron cap galvanizing more efficient, as a further improvement of the present invention, the tank body 3-2 is equipped with a blasting tank, a water cooling tank and a passivation tank.

[0024] In order to further improve the automation level of the production line, as a further improvement scheme of the present invention, Figure 3As shown, the water cooling tank and the passivation tank of the tank body 3-2 are equipped with a lifting bracket 3-3. The post-processing truss manipulator 3-1 descends to grab and lift the tooling, inner tooling and workpieces transferred by the robot, and walks to the deblunting station, and then quickly descends, ascends, and rotates to quickly pass the inner tooling and workpieces in the ammonium chloride solution, and then places the inner tooling on the water cooling pool lifting bracket 3-3. The post-processing truss manipulator 3-1 returns to wait for the next grabbing, and the water cooling pool lifting bracket 3-3 drives the tooling and workpieces to rise and fall in the cooling tank, realizing The water cooling process is now in progress. After the water cooling is completed, the post-processing truss manipulator 2 3-6 descends and grabs the tooling and workpiece and walks to the passivation station, and places the workpiece and tooling on the lifting bracket 3-3 of the passivation tank. The lifting bracket 3-3 of the passivation tank drives the tooling and workpiece to rise and fall to realize the passivation process; after the passivation is completed, the post-processing truss manipulator 2 3-6 grabs the tooling and workpiece and walks to the unloading area, places the workpiece and tooling on the unloading platform 3-4, and then returns to perform the next grabbing task, and finally the unloading conveyor 3-5 transports the tooling with the iron cap off the line.

[0025] In order to effectively adapt to the production structure of the production line and the production tasks of the galvanizing section 2, as a further improvement of the present invention, the galvanizing robots 2-4 are six-axis robots.

[0026] In order to further improve the working environment of the factory and reduce the waste of raw materials, as a further improvement scheme of the present invention, the steel structure platform and the smoke hood 2-9 are integrated with a zinc smoke collection device.

[0027] When in use, a hot-dip galvanizing production line for suspension insulator iron caps is installed, and the production line is loaded with corresponding materials and put into operation.

[0028] When the present invention is used, the specific operation is as follows:

[0029] After the pre-treatment of the workpiece is completed, it is placed in the storage hopper. The workers stand on both sides of the manual hanging platform 1-1, first use the inner tooling to take the hanger to the platform, and then take the workpiece in the hopper and hang it on the inner tooling. After one tooling is full, the tooling and the workpiece are manually pushed into the transition conveyor 1-2. The transition conveyor 1-2 runs to transport the tooling to the dryer 1-3. After the pre-treatment, there will be liquid on the surface of the workpiece, which needs to be dried before galvanizing; after passing through the dryer 1-3, the workpiece enters the 90-degree turning conveyor 1-4 to change the conveying direction and speed up the conveying speed; after passing through the turning conveyor 1-4, the workpiece enters the pick-up conveyor 1-5 and is transported to a fixed position to stop, waiting for the loading truss robot 1-6 to grab it; when the workpiece reaches the grabbing position, the loading truss robot 1-6 descends, grabs the inner tooling and the workpiece, lifts, and walks to the loading position, waiting for loading.

[0030] The galvanizing robot 2-4 grabs the outer tooling and walks to the loading position, the loading truss manipulator 1-6 descends, and puts the inner tooling and the workpiece into the outer tooling 2-5, and then the loading truss manipulator 1-6 rises to a certain height, and the galvanizing robot 2-4 grabs the inner and outer tooling and puts them together on the rotary galvanizing device 2-10 for hot-dip galvanizing. The rotary galvanizing device 2-10 can be raised and lowered and rotated. During the hot-dip galvanizing process, it is necessary to raise and lower while rotating back and forth to completely shake out the zinc ash inside the workpiece, and at the same time, ensure that the workpiece fully reacts with the zinc liquid; when the galvanizing set time is reached, the rotary galvanizing device 2-10 rotates the tooling to the bottom of the centrifuge 2-1. At this time, the centrifuge 2-1 descends, and uses the clamp to grab the outer tooling together with the inner tooling and the workpiece, lifts them to a certain height, and starts high-speed rotation centrifugation. After the centrifugation is completed, the galvanizing robot 2-4 grabs the tooling and workpiece completed by centrifugation and runs them to the loading end of the post-processing area 3.

[0031] The post-processing truss manipulator 3-1 descends to grab and lift the tooling, inner tooling and workpieces transferred by the robot, and walks to the blunting station, then quickly descends, ascends, and rotates, and quickly passes the inner tooling and workpieces through the ammonium chloride solution, and then places the inner tooling on the water cooling pool lifting bracket 3-3. The post-processing truss manipulator 3-1 returns to wait for the next grabbing, and the water cooling pool lifting bracket 3-3 drives the tooling and workpieces to rise and fall in the cooling tank to realize the water cooling process. After the water cooling is completed, the post-processing The truss manipulator 2 3-6 descends and grabs the tooling and workpiece and moves to the passivation station, places the workpiece and tooling on the lifting bracket 3-3 of the passivation tank, and the lifting bracket 3-3 of the passivation tank drives the tooling and workpiece to move up and down to realize the passivation process; after the passivation is completed, the post-processing truss manipulator 2 3-6 grabs the tooling and workpiece and moves to the unloading area, places the workpiece and tooling on the unloading platform 3-4, and then returns to perform the next grabbing task, and finally the tooling with the iron cap is transported off the line by the unloading conveyor 3-5.

Claims

1. A hot-dip galvanizing production line for suspension insulator caps, characterized in that: The invention comprises a loading area (1), a galvanizing section (2) and a post-processing area (3), wherein the loading area (1), the galvanizing section (2) and the post-processing area (3) are connected in series in sequence, wherein the loading area (1) comprises a manual hanging platform (1-1), a transition conveyor (1-2), a dryer (1-3), a turning conveyor (1-4), a pick-up conveyor (1-5) and a loading truss manipulator (1-6), wherein the manual hanging platform (1-1) is connected to one end of the dryer (1-3) through the transition conveyor (1-2), the other end of the dryer (1-3) is connected to the front end of the turning conveyor (1-4), the rear end of the turning conveyor (1-4) is connected to the pick-up conveyor (1-5), and a loading truss manipulator (1-6) is provided on the outer side of the pick-up conveyor (1-5) close to the galvanizing section (2); The galvanizing section (2) comprises a centrifuge (2-1), a guide rail (2-2), a material unloading positioning frame (2-3), a galvanizing robot (2-4), an external tooling (2-5), an external tooling placement position (2-6), a material loading positioning frame (2-7), a zinc pot (2-8), a steel structure platform and a fume extractor (2-9) and a rotary galvanizing device (2-10). The zinc pot (2-8) is installed on the ground. The guide rails (2-2) are respectively installed on both sides of the zinc pot (2-8). The guide rails (2-2) are arranged in parallel with the material loading area (1) and the post-processing area (3) and extend outward to the rear of the zinc pot (2-8). The steel structure platform and the fume extractor (2-9) span the zinc pot (2-8) and can Moving along the guide rail (2-2), a galvanizing robot (2-4) is provided on the ground in front of the zinc pot (2-8), a material unloading positioning frame (2-3) and a material loading positioning frame (2-7) are respectively installed on the ground on both sides of the galvanizing robot (2-4), an external tooling placement position (2-6) is provided at the material loading positioning frame (2-7), two or three external tools (2-5) are provided on the upper surface of the external tooling placement position (2-6), a centrifuge (2-1) is fixedly installed in the middle of the steel structure platform and the smoke hood (2-9) through a bracket, a rotary galvanizing device (2-10) is provided directly below the centrifuge (2-1), and the external tooling placement position (2-6) is within the working range of the material loading truss manipulator (1-6); The post-processing area (3) comprises a post-processing truss manipulator (3-1), a trough body (3-2), a lifting bracket (3-3), a material unloading platform (3-4), a material unloading conveyor (3-5) and a second post-processing truss manipulator (3-6). A post-processing area loading end is provided below the post-processing truss manipulator (3-1) of the post-processing area (3). The post-processing truss manipulator (3-1) moves back and forth between the post-processing area loading end and the front half of the trough body (3-2) via a slide rail. The second post-processing truss manipulator (3-6) is installed on the rear half of the trough body (3-2) via a bracket. The material unloading platform (3-4) is installed within the working range of the second post-processing truss manipulator (3-6), and the material unloading platform (3-4) is connected to the material unloading conveyor (3-5).

2. The hot-dip galvanizing production line for suspension insulator caps according to claim 1, characterized in that: The tank body (3-2) is equipped with a deblunting tank, a water cooling tank and a passivation tank.

3. A hot dip galvanizing production line for suspension insulator caps according to claim 1 or 2, characterized in that: The water cooling tank and the passivation tank of the tank body (3-2) are both equipped with a lifting bracket (3-3).

4. The hot-dip galvanizing production line for suspension insulator caps according to claim 1, characterized in that: The galvanizing robot (2-4) is a six-axis robot.

5. The hot-dip galvanizing production line for suspension insulator caps according to claim 1, characterized in that: The steel structure platform and the smoke hood (2-9) are integrated with a zinc smoke collection device.

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