Process layout structure and operation method of tank container powder spraying production line

Abstract

The application provides a process layout structure of a tank container powder spraying production line, which comprises a tank container entering and leaving a tank area, a tank container loading and unloading area, a tank container longitudinal and transverse translation first area, a tank container pretreatment area, a tank container longitudinal and transverse translation second area, a tank container buffer first area, a tank container powder electrostatic spraying area, a tank container longitudinal and transverse translation third area, a tank container powder curing treatment area, a tank container shielding area and a tank container transfer area.The process layout structure and operation method of the tank container powder spraying production line can better utilize the transverse and longitudinal space in a factory by arranging the transverse and longitudinal positions of the stations, can shorten the moving route of the tank container between different steps and improve the production efficiency by reasonably arranging the stations, and can realize the curing of the surface powder and the bottom powder by arranging only one tank container powder curing treatment area, thereby saving a curing line and reducing the cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of box powder spraying production, in particular to a process layout structure and operation method of a tank container powder spraying production line. BACKGROUND

[0002] At present, the surface coating of tank containers mainly adopts a solvent type paint spraying process, and the main process includes sanding and cleaning of the surface of the tank, primer spraying, primer leveling and drying, intermediate paint spraying, intermediate paint leveling and drying, topcoat spraying, and topcoat leveling and drying. The solvent type paint contains a large amount of diluent and other volatile organic compounds, which can quickly become gas at room temperature, and has a serious impact on air quality, human health and the ecological environment.

[0003] However, the solvent type paint spraying process has problems such as high VOCs emission, adverse effects of volatile organic compounds on air quality, human health and the ecological environment, etc.

[0004] Currently, powder spraying technology can solve the above problems, but the process layout of the existing powder spraying process occupies a large area, the equipment is not reasonably distributed, the tank container has a long moving route between different steps, and therefore it is difficult to ensure the efficiency of the production efficiency, and the cost is high.

[0005] Therefore, it is necessary to improve the process layout structure of the existing tank container powder spraying production line to solve the above problems. SUMMARY

[0006] The present application relates to the field of box powder spraying production, in particular to a process layout structure and operation method of a tank container powder spraying production line.

[0007] To achieve the above-mentioned purpose, a process layout structure of a tank container powder spraying production line comprises:

[0008] A tank box in-out area, which extends in the transverse direction;

[0009] A tank box up-down piece area, which is arranged adjacent to the tank box in-out area in the longitudinal direction;

[0010] A tank box longitudinal and transverse translation area I, which extends in the transverse direction and is arranged adjacent to the tank box up-down piece area in the longitudinal direction;

[0011] A tank box pre-treatment area, which is arranged adjacent to the tank box shielding area in the longitudinal direction;

[0012] A tank box longitudinal and transverse translation area II, which extends in the transverse direction and is arranged adjacent to the tank box pre-treatment area in the longitudinal direction;

[0013] A tank box buffer area I is arranged longitudinally adjacent to the tank box longitudinal-lateral translation II area;

[0014] A tank box powder electrostatic spraying area is arranged laterally adjacent to the tank box buffer area I and longitudinally adjacent to the tank box longitudinal-lateral translation II area;

[0015] A tank box longitudinal-lateral translation III area is arranged laterally extending and longitudinally adjacent to the tank box buffer area I and the tank box powder electrostatic spraying area;

[0016] A tank box powder curing treatment area is arranged longitudinally between the tank box longitudinal-lateral translation II area and the tank box longitudinal-lateral translation I area and laterally adjacent to the tank box pre-treatment area;

[0017] A tank box shielding area is arranged longitudinally adjacent to the tank box in-out area and the tank box longitudinal-lateral translation I area and laterally adjacent to the tank box up-down area;

[0018] A tank box transfer area is arranged longitudinally adjacent to the tank box longitudinal-lateral translation I area and the tank box longitudinal-lateral translation II area and laterally adjacent to the tank box powder curing heating area and the tank box powder curing cooling area.

[0019] As a further improvement of the present application, the tank box pre-treatment area comprises a tank box chemical pre-treatment area and a tank box moisture drying cooling area arranged longitudinally adjacent to each other, the tank box chemical pre-treatment area is arranged adjacent to the tank box longitudinal-lateral translation I area, and the tank box moisture drying cooling area is arranged adjacent to the tank box longitudinal-lateral translation II area.

[0020] As a further improvement of the present application, the tank box chemical pre-treatment area comprises a treatment buffer area, a pre-degreasing / degreasing chamber, a water washing / pure water washing chamber, a silane chamber, and a water washing / pure water washing chamber arranged sequentially from the tank box longitudinal-lateral translation I area towards the tank box moisture drying cooling area.

[0021] As a further improvement of the present application, the tank box moisture drying cooling area comprises an artificial water blowing chamber, a moisture drying chamber, a strong cooling chamber, and an inspection chamber arranged sequentially from the tank box chemical pre-treatment area towards the tank box longitudinal-lateral translation II area.

[0022] As a further improvement of the present application, the tank box powder electrostatic spraying area comprises a tank box powder electrostatic spraying I area, a tank box powder electrostatic spraying II area, and a tank box powder electrostatic spraying III area, the tank box buffer area I is arranged laterally between the tank box powder electrostatic spraying I area and the tank box powder electrostatic spraying II area, and the tank box powder electrostatic spraying I area is arranged laterally close to the tank box pre-treatment area.

[0023] As a further improvement of the present application, the tank box powder electrostatic spraying area one comprises a bottom powder buffer area, a bottom powder robot spraying chamber and a bottom powder manual spraying chamber arranged in sequence from the tank box longitudinal and lateral translation three area to the tank box longitudinal and lateral translation two area, and the tank box powder electrostatic spraying area two and the tank box powder electrostatic spraying area three each comprises a flour buffer area, a flour robot spraying chamber and a flour manual spraying chamber arranged in sequence from the tank box longitudinal and lateral translation three area to the tank box longitudinal and lateral translation two area.

[0024] As a further improvement of the present application, the tank box powder curing treatment area comprises a tank box powder curing heating area and a tank box powder curing cooling area arranged in sequence along the longitudinal direction, the tank box powder curing heating area is arranged in sequence along the longitudinal direction from the tank box longitudinal and lateral translation two area, and the tank box powder curing cooling area is arranged in sequence along the longitudinal direction from the tank box longitudinal and lateral translation one area.

[0025] As a further improvement of the present application, the tank box powder curing heating area comprises an infrared curing chamber, an infrared / gas curing chamber, a gas curing chamber and a curing buffer chamber arranged in sequence along the longitudinal direction from the tank box longitudinal and lateral translation two area to the tank box powder curing cooling area.

[0026] As a further improvement of the present application, the tank box powder curing cooling area comprises a forced / natural cooling area, a buffer area one, a manual inspection area and a buffer area two arranged in sequence along the longitudinal direction from the tank box powder curing heating area to the tank box longitudinal and lateral translation one area.

[0027] As a further improvement of the present application, the tank box transfer area comprises a tank box buffer area two, a tank box longitudinal and lateral translation four area and a tank box buffer area three arranged in sequence along the longitudinal direction, wherein the tank box buffer area two is arranged in sequence along the longitudinal direction from the tank box longitudinal and lateral translation one area, and the tank box buffer area three is arranged in sequence along the longitudinal direction from the tank box longitudinal and lateral translation two area.

[0028] As a further improvement of the present application, the tank box buffer area two comprises a first hanger passage, three storage and transportation areas and a first rapid unloading area arranged in sequence along the lateral direction, wherein the first hanger passage is arranged in sequence along the lateral direction from the tank box powder curing treatment area.

[0029] As a further improvement of the present application, the tank box buffer area three comprises a second hanger passage, three color changing buffer areas and a second rapid unloading area arranged in sequence along the lateral direction, wherein the second hanger passage is arranged in sequence along the lateral direction from the tank box powder curing treatment area.

[0030] The present application also provides a tank container powder spraying production line operation method, which comprises the following steps:

[0031] S1: sending a tank box needing to be sprayed to a tank box in-out area, and then sending the tank box to a tank box up-down area and a tank box longitudinal and lateral translation one area in sequence;

[0032] S2: the tank container is sent to the tank container pre-treatment area to perform pre-treatment operation before powder spraying;

[0033] S3: the treated tank container is sent to the tank container longitudinal and transverse translation two area, the tank container buffer area one and the tank container longitudinal and transverse translation three area in sequence;

[0034] S4: the tank container is sent to the tank container powder electrostatic spraying area to perform powder spraying treatment;

[0035] S5: the tank container after powder spraying treatment is sent to the tank container longitudinal and transverse translation two area, then to the tank container powder curing treatment area to perform curing treatment, and then to the tank container longitudinal and transverse translation one area, and then the tank container is sent to the tank container shielding area to perform wrapping shielding;

[0036] S6: the wrapped tank container is sent to the tank container transfer area, and then sent to the tank container longitudinal and transverse translation two area, the tank container buffer area one and the tank container longitudinal and transverse translation three area in sequence;

[0037] S7: the tank container is sent to the tank container powder electrostatic spraying area to perform powder spraying treatment;

[0038] S8: the tank container after powder spraying treatment is sent to the tank container longitudinal and transverse translation two area, then to the tank container powder curing treatment area to perform curing treatment, and then to the tank container longitudinal and transverse translation one area, and then the tank container is sent to the tank container shielding area to perform unshielding;

[0039] S9: after unshielding is completed, the tank container is sent to the tank container longitudinal and transverse translation one area, the tank container upper and lower piece area and the tank container in and out area in sequence, and then the tank container is sent out of the tank container in and out area.

[0040] As a further improvement of the present application, the pre-treatment operation before powder spraying in step S2 comprises pre-degreasing, degreasing, water washing, pure water washing, silane, water washing, pure water washing, artificial water blowing, hot air drying, strong wind refrigeration and artificial inspection.

[0041] As a further improvement of the present application, the powder spraying treatment in step S4 and step S7 comprises automatic powder spraying step and artificial powder spraying step.

[0042] As a further improvement of the present application, the curing treatment in step S5 and S8 comprises infrared heating, hot air heating, strong wind refrigeration, natural wind refrigeration and artificial inspection.

[0043] The beneficial effects of the present application are: the process layout structure and operation method of the tank container powder spraying production line of the present application, through the arrangement of the horizontal and vertical of each station, so that the horizontal and vertical space in the factory building can be better utilized; through the reasonable arrangement of each station, the moving route of the tank container between different steps can be shortened, and the production efficiency can be improved; only one tank container powder curing treatment area is arranged to realize the curing of flour and bottom powder, one curing line is saved to reduce the cost. BRIEF DESCRIPTION OF DRAWINGS

[0044] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0045] Fig. 1 is a process layout structure diagram of the tank container powder spraying production line of the present application;

[0046] Fig. 2 is a detailed process layout structure diagram of the tank container powder spraying production line of the present application;

[0047] Fig. 3 is a flow chart of the operation method of the tank container powder spraying production line of the present application. DETAILED DESCRIPTION

[0048] The technical solutions of the present application will be described in detail below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0049] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present application, it is necessary to point out that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0051] As Figs. 1-2 shown, the present application provides a process layout structure of a tank container powder spraying production line, comprising:

[0052] A tank box in-out box area 1 extends in the transverse direction;

[0053] A tank box up-down piece area 2 is arranged along the longitudinal direction adjacent to the tank box in-out box area 1;

[0054] A tank box longitudinal and transverse translation area 3 extends in the transverse direction, and is arranged along the longitudinal direction adjacent to the tank box up-down piece area 2;

[0055] A tank box pre-treatment area is arranged along the longitudinal direction adjacent to the tank box shielding area 14;

[0056] A tank box longitudinal and transverse translation area 6 extends in the transverse direction, and is arranged along the longitudinal direction adjacent to the tank box pre-treatment area;

[0057] A tank box buffer area 7 is arranged along the longitudinal direction adjacent to the tank box longitudinal and transverse translation area 6;

[0058] A tank box powder electrostatic spraying area is arranged along the transverse direction adjacent to the tank box buffer area 7, and is arranged along the longitudinal direction adjacent to the tank box longitudinal and transverse translation area 6;

[0059] A tank box longitudinal and transverse translation area 8 extends in the transverse direction, and is arranged along the longitudinal direction adjacent to the tank box buffer area 7 and the tank box powder electrostatic spraying area;

[0060] A tank box powder curing treatment area is arranged along the longitudinal direction between the tank box longitudinal and transverse translation area 6 and the tank box longitudinal and transverse translation area 3, and is arranged along the transverse direction adjacent to the tank box pre-treatment area;

[0061] A tank shelter area 14 is arranged longitudinally adjacent to the tank access area 1 and the tank longitudinal and transverse translation area 3, and transversely adjacent to the tank upper and lower piece area 2;

[0062] A tank transfer area is arranged longitudinally adjacent to the tank longitudinal and transverse translation area 3 and the tank longitudinal and transverse translation area 6, and transversely adjacent to the tank powder curing heating area 12 and the tank powder curing cooling area 13.

[0063] The moving path of the tank is: tank access area 1, tank upper and lower piece area 2, tank longitudinal and transverse translation area 3, tank pre-treatment area, tank longitudinal and transverse translation area 6, tank buffer area 7, tank longitudinal and transverse translation area 8, tank powder electrostatic spraying area, tank powder curing treatment area, tank longitudinal and transverse translation area 3, tank shelter area 14, tank longitudinal and transverse translation area 3, tank transfer area, tank longitudinal and transverse translation area 6, tank buffer area 7, tank longitudinal and transverse translation area 8, tank powder electrostatic spraying area, tank powder curing treatment area, tank longitudinal and transverse translation area 3, tank upper and lower piece area 2, tank access area 1. The overall moving path of the tank is not only along the longitudinal direction, but also reciprocates between the transverse and longitudinal directions, so that the powder spraying process of the tank can better utilize the transverse space.

[0064] The same tank powder curing treatment area is used for flour curing and bottom powder curing. By reasonable production scheduling, products with similar structure, powder matching and curing temperature are uniformly entered into the tank powder curing treatment area for curing, ensuring consistent curing conditions within a certain time. Moreover, according to different curing temperatures, the products can be arranged in order from high to low, ensuring quality without affecting the cycle time, thereby saving a curing line and reducing costs.

[0065] The work area used in similar steps is adjacent, thereby shortening the moving path of the tank between different steps and improving production efficiency.

[0066] In this embodiment, the transverse and longitudinal spaces are fully utilized through reasonable layout, and the path is saved, thereby improving production efficiency.

[0067] The main equipment of the tank access area 1 includes a tank special crane and a hydraulic lifting trolley. When the tank is accessed, the tank is transported to this area by an external vehicle, the tank is lifted on the hydraulic lifting trolley by the tank special crane, and then the tank is transported to the tank upper and lower piece area 2 by the hydraulic lifting trolley. When the tank is accessed, the tank is transported from the tank upper and lower piece area 2 to the tank access area 1 by the hydraulic lifting trolley, and the tank is lifted on the external vehicle by the tank special crane for transfer.

[0068] The main equipment of the tank box loading and unloading area 2 includes a lifting work platform, a tank car group equalizing beam and a friction drive device. When loading, the tank box is lifted to a high position by a hydraulic lifting trolley in the tank box in-out area 1, the work personnel are lifted to the high altitude by the lifting work platform, the tank box is hoisted under the car group equalizing beam by the work personnel using the rigging, and then the hydraulic lifting trolley is lowered to a low position. When unloading, the tank box is held by lifting the hydraulic lifting trolley to a high position, the work personnel are lifted to the high altitude by the lifting work platform, the rigging connected between the tank box and the car group equalizing beam is removed by the work personnel, and then the hydraulic lifting trolley is lowered to a low position.

[0069] Among them: the tank box loading and unloading area 2 is provided with two stations, and a non-fixed station operation mode is adopted, that is, each station considers the loading and unloading functions, and the idle station is preferentially selected to avoid waiting time and improve efficiency.

[0070] The main equipment of the tank box longitudinal and transverse translation area 3 includes a tank box moving machine and a friction drive device. This area is mainly used for transferring the car group equalizing beam loaded with the tank box in the adjacent area. When the car group equalizing beam loaded with the tank box needs to be transferred, the moving machine is moved to the corresponding position in the adjacent area, the car group equalizing beam is connected or sent out by the friction drive device, so as to realize the transfer of the tank box.

[0071] The tank box pre-treatment area includes a tank box chemical pre-treatment area 4 and a tank box moisture drying and cooling area 5 arranged longitudinally adjacent to each other, the tank box chemical pre-treatment area 4 is arranged adjacent to the tank box longitudinal and transverse translation area 3, and the tank box moisture drying and cooling area 5 is arranged adjacent to the tank box longitudinal and transverse translation area 6.

[0072] The tank box can pass through the tank box chemical pre-treatment area 4 and the tank box moisture drying and cooling area 5 in sequence in the longitudinal direction, wherein the tank box chemical pre-treatment area 4 is used for pretreating the tank box, the tank box moisture drying and cooling area 5 is used for drying the treated tank box to avoid the influence of water vapor on the subsequent powder spraying effect, and the tank box after drying is cooled to avoid the influence of high temperature on the subsequent powder spraying effect.

[0073] The tank chemical pretreatment area 4 includes a processing buffer area, a pre-degreasing / degreasing chamber, a water washing / pure water washing chamber, a silane chamber, and a water washing / pure water washing chamber arranged in sequence from the tank longitudinal and transverse translation area 3 to the tank moisture drying and cooling area 5. The processing buffer area is used to temporarily store the tank. In addition to the processing buffer area, there are four process spraying sections in the tank chemical pretreatment area 4, and the tanks are arranged longitudinally. The tanks are intermittently operated in each process spraying section, that is, one or two different spraying operations can be performed in the same process section, and there is enough water draining time in between. Then the tank is operated to the next process section to perform different operations. The tank can meet the requirements of different process spraying time in each section. Each process section realizes different process cleaning through the switching of spraying pipelines and spraying pumps. The tank chemical pretreatment area 4 adopts a four-station seven-process design. Except for the silane chamber, the remaining processes share one station, that is, two processes are completed in one station, saving space.

[0074] In the pre-degreasing / degreasing chamber, pre-degreasing is required first, and then degreasing operation is performed.

[0075] The tank moisture drying and cooling area 5 includes an artificial water blowing chamber, a moisture drying chamber, a forced cooling chamber, and an inspection chamber arranged in sequence from the tank chemical pretreatment area 4 to the tank longitudinal and transverse translation area 6. The tanks are arranged longitudinally in the tank moisture drying and cooling area 5. In the artificial water blowing chamber, the water stored in the dead angle position of the tank transported from the tank chemical pretreatment area 4 is cleaned. Then the moisture on the surface of the tank is dried through the moisture drying chamber. Then the tank is rapidly cooled by using forced cold air through the forced cooling chamber. Finally, the surface of the tank is checked by artificial inspection in the inspection chamber to check whether there is moisture.

[0076] The tank longitudinal and transverse translation area 6 mainly includes a tank moving machine and a friction driving device. The tank longitudinal and transverse translation area 6 is mainly used to transfer the car group equalizing beam carrying the tank between adjacent areas. When the car group equalizing beam carrying the tank needs to be transferred, the moving machine is moved to the corresponding position of the adjacent area, and the car group equalizing beam is connected or sent out through the friction driving device, so as to realize the transfer of the tank.

[0077] The tank buffer area 7 mainly includes a friction driving device. The tanks are arranged longitudinally in the tank buffer area 7. When the tank needs to be sprayed, the tank is transferred to this area through the tank longitudinal and transverse translation area 6, and then the tank is transferred to the tank longitudinal and transverse translation area 8 after being buffered.

[0078] The tank longitudinal and transverse translation area 8 mainly includes a tank moving machine and a friction driving device. The tank longitudinal and transverse translation area 8 is mainly used to transfer the car group equalizing beam carrying the tank between adjacent areas. When the car group equalizing beam carrying the tank needs to be transferred, the moving machine is moved to the corresponding position of the adjacent area, and the car group equalizing beam is connected or sent out through the friction driving device, so as to realize the transfer of the tank.

[0079] In the embodiment, the tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area 1, a tank box powder electrostatic spraying area 2 and a tank box powder electrostatic spraying area 3, the tank box buffer area 7 is arranged between the tank box powder electrostatic spraying area 1 and the tank box powder electrostatic spraying area 2 in the transverse direction, the tank box powder electrostatic spraying area 1 is arranged on the side close to the tank box pre-treatment area in the transverse direction, and the tank box buffer area 7 is arranged close to the tank box powder curing treatment area in the transverse direction.

[0080] In the embodiment, the tank box buffer area 7 is arranged between the tank box powder electrostatic spraying area 1 and the tank box powder electrostatic spraying area 2, and the tank box powder electrostatic spraying area 1 and the tank box powder electrostatic spraying area 2 are both required to pass through the tank box powder curing treatment area after the flour spraying and the base powder spraying. Therefore, the moving path of the flour spraying and the base powder spraying towards the tank box powder curing treatment area is reduced as much as possible, and the efficiency is improved.

[0081] The tank box powder electrostatic spraying area 1 includes a base powder buffer area, a base powder robot spraying chamber and a base powder manual spraying chamber arranged in sequence from the tank box longitudinal and transverse translation area 3 to the tank box longitudinal and transverse translation area 2, and the tank box powder electrostatic spraying area 2 and the tank box powder electrostatic spraying area 3 each include a flour buffer area, a flour robot spraying chamber and a flour manual spraying chamber arranged in sequence from the tank box longitudinal and transverse translation area 3 to the tank box longitudinal and transverse translation area 2.

[0082] The tank box powder electrostatic spraying area 1 is arranged in the longitudinal direction of the tank box, and includes a set of base powder robot spraying chamber and a set of base powder manual spraying chamber. The base powder robot spraying chamber is used for large surface spraying of the tank box, and a robot is used for spraying operation. A reasonable motion track is programmed and taught in advance to automatically spray the required spraying position of the workpiece, the empty spraying rate is low, and the powder utilization rate is high. The base powder manual spraying chamber is used for non-large surface spraying of the tank box. According to the base surface spraying effect, supplementary spraying or over-sprayed powder cleaning operation can be performed.

[0083] The tank box powder electrostatic spraying area 2 and the tank box powder electrostatic spraying area 3 each mainly include a set of flour robot spraying chamber and a set of flour manual spraying chamber, and are arranged in the longitudinal direction of the tank box. The flour robot spraying chamber is used for large surface spraying of the tank box, and a robot is used for spraying operation. A reasonable motion track is programmed and taught in advance to automatically spray the required spraying position of the workpiece, the empty spraying rate is low, and the powder utilization rate is high. The two sets of flour manual spraying chambers are used for non-large surface spraying of the tank box. According to the base surface spraying effect, supplementary spraying or over-sprayed powder cleaning operation can be performed.

[0084] When only one color of spraying is needed in this embodiment, one of the tank box powder electrostatic spraying area 10 and the tank box powder electrostatic spraying area 11 is used as a backup, and the tank box powder electrostatic spraying area 11 farther from the tank box powder curing treatment area is preferably used as a backup. When the product changes color, the backup area is switched to, and the working area is cleaned. After cleaning, the backup spraying area is switched to, so as to avoid waiting time.

[0085] When the tank box product has special color requirements, such as double colors, the tank box powder electrostatic spraying area 10 and the tank box powder electrostatic spraying area 11 can be used at the same time. For example, the tank box powder electrostatic spraying area 10 sprays the cylinder body in one blue color; and the tank box powder electrostatic spraying area 11 sprays the cylinder body in another color, so as to reduce waiting and re-feeding time and improve efficiency.

[0086] In addition, when one of the tank box powder electrostatic spraying area 10 and the tank box powder electrostatic spraying area 11 fails or is replaced, operation can be performed in the other area, so as to avoid line stop and waiting.

[0087] The tank box powder curing treatment area includes a tank box powder curing heating area 12 and a tank box powder curing cooling area 13 arranged longitudinally adjacent to each other. The tank box powder curing heating area 12 is arranged longitudinally adjacent to the tank box longitudinal and transverse translation area 2. The tank box powder curing cooling area 13 is arranged longitudinally adjacent to the tank box longitudinal and transverse translation area 1.

[0088] The tank box powder curing heating area 12 includes an infrared curing chamber, an infrared / gas curing chamber, a gas curing chamber, and a curing buffer chamber arranged in sequence from the tank box longitudinal and transverse translation area 2 to the tank box powder curing cooling area 13. The tank box powder curing heating area 12 mainly includes a chamber body, a gas direct heating system, a hot air circulation system, an exhaust system, an exhaust pipe, a heat preservation door, and the like. The powder curing furnace is also a floor type straight-through furnace. The tank boxes are longitudinally arranged in the chamber body, and there are a total of six heating and curing stations. The number of gas curing chambers is four. The infrared curing area has fast heating, and is used for special products such as carbon steel boxes. Ordinary tank boxes do not need infrared. The six curing stations are provided to ensure sufficient beat (reserved) time for subsequent capacity upgrading.

[0089] The tank box powder solidification cooling area 13 comprises a forced / natural cooling area, a buffer area 1, a manual inspection area and a buffer area 2 arranged in sequence along the longitudinal direction from the tank box powder solidification heating area 12 to the tank box longitudinal transverse translation area 3. The main equipment of the tank box powder solidification cooling area 13 is composed of a chamber body, a air supply and exhaust system, an air supply and exhaust machine box and the like. The tank box in a heated state is forcedly cooled, the tank boxes are arranged longitudinally, and there are four cooling stations, of which the forced / natural cooling area is three, the buffer area 1 can also achieve the effect of natural cooling, and is the fourth cooling station, and can also play the role of buffering the tank boxes.

[0090] The main equipment of the tank box shielding area 14 includes a lifting operation platform, a tank box vehicle group equalizing beam and a friction drive device. There are four stations arranged side by side, and four tank boxes can be simultaneously shielded and unshielded.

[0091] The tank box transfer area comprises a tank box buffer area 2 15, a tank box longitudinal transverse translation area 4 16 and a tank box buffer area 3 17 arranged in sequence along the longitudinal direction, wherein the tank box buffer area 2 15 is arranged along the longitudinal direction adjacent to the tank box longitudinal transverse translation area 1 3, and the tank box buffer area 3 17 is arranged along the longitudinal direction adjacent to the tank box longitudinal transverse translation area 2 6.

[0092] The tank box buffer area 2 15 comprises a first hanger passage, three storage and transportation areas and a first rapid unloading area arranged in sequence along the transverse direction, wherein the first hanger passage is arranged adjacent to the tank box powder solidification treatment area. The main equipment of the tank box buffer area 2 15 adopts a heavy accumulation chain system for conveying, including front and rear vehicle groups, equalizing beams, traction chains, traction chain drive devices, friction drive devices and the like. The tank box buffer area 2 15 has a total of four buffer lines, including three storage and transportation areas and a first rapid unloading area, for buffering tank boxes.

[0093] In the present embodiment, the tank box buffer area 2 15 has a total of five passages, the first hanger passage closest to the tank box powder solidification treatment area is used for transferring and conveying hangers, the first rapid unloading area farthest from the tank box powder solidification treatment area is used for quickly moving to the online area when the product needs to be unloaded for processing due to quality problems, and the middle three storage and transportation areas are conventional buffer passages, mainly for color and work order product spraying identification: when color switching or different work order product switching occurs, the same color / work order products can be uniformly put into the same passage, which is convenient for central control management.

[0094] The main equipment of the tank box longitudinal transverse translation area 4 16 includes a tank box moving machine and a friction drive device. This area is mainly used for transferring the equalizing beam of the vehicle group carrying the tank boxes in the adjacent area. When the equalizing beam of the vehicle group carrying the tank boxes needs to be transferred, the moving machine is moved to the corresponding position in the adjacent area, and the equalizing beam of the vehicle group is connected or sent out through the friction drive device, so as to realize the transfer of the tank boxes.

[0095] The tank box buffer three area 17 includes a second hanger channel, three color changing buffer areas and a second rapid unloading area arranged in sequence along the transverse direction, wherein the second hanger channel is arranged adjacent to the tank box powder curing treatment area. The main equipment of the tank box buffer three area 17 is a conveying heavy-duty accumulation chain system, including front and rear vehicle groups, equalizing beams, traction chains, traction chain driving devices, friction driving devices and the like; a total of four buffer lines, including three color changing buffer areas and a second rapid unloading area, are used for tank box buffering.

[0096] In the embodiment, the tank box buffer three area 17 has the same layout as the tank box buffer two area 15; there are also five channels, the second hanger channel closest to the tank box powder curing treatment area and the second rapid unloading area farthest from the tank box powder curing treatment area; among them, the three color changing buffer areas in the middle are slightly different, one is a transition channel (no product is stored), the other two are special product (daily production quantity less than 4 units) and special color (double or triple color) buffer areas, because the quantity is small, therefore, a certain quantity needs to be accumulated before unified spraying. For the single color of the topcoat, one of the three middle conventional channels is selected as a rapid channel to improve efficiency; when the color of the topcoat is double (the color of the barrel body and the frame are different), the product selects one channel before frame spraying, and selects another channel after frame spraying, to meet the process route identification and management of different products.

[0097] As shown in Fig. 3 The operation method of the tank container powder spraying production line of the present application can be based on the process layout structure of the above-mentioned tank container powder spraying production line, or can be independently implemented. The operation method of the tank container powder spraying production line includes the following steps:

[0098] S1: sending the tank box to be sprayed to the tank box in-out area 1, and then sequentially to the tank box unloading area 2, the tank box longitudinal and transverse translation area 1 3;

[0099] S2: sending the tank box to the tank box pre-treatment area for pre-treatment operation before powder spraying;

[0100] S3: sequentially sending the treated tank box to the tank box longitudinal and transverse translation area 2 6, the tank box buffer area 1 7 and the tank box longitudinal and transverse translation area 3 8;

[0101] S4: sending the tank box to the tank box powder electrostatic spraying area for powder spraying treatment;

[0102] S5: sending the tank box after powder spraying treatment to the tank box longitudinal and transverse translation area 2 6, then to the tank box powder curing treatment area for curing treatment, and then to the tank box longitudinal and transverse translation area 1 3, and then sending the tank box to the tank box shielding area 14 for wrapping and shielding;

[0103] S6: the wrapped tank container is sent to a tank container transfer area, and then is sent to a tank container longitudinal and transverse translation second area 6, a tank container buffer area 7 and a tank container longitudinal and transverse translation third area 8 in sequence;

[0104] S7: the tank container is sent to a tank container powder electrostatic spraying area to perform powder spraying treatment;

[0105] S8: the tank container after the powder spraying treatment is sent to the tank container longitudinal and transverse translation second area 6, and then is sent to a tank container powder curing treatment area to perform curing treatment, and then is sent to the tank container longitudinal and transverse translation first area 3, and then the tank container is sent to a tank container shielding area 14 to perform unshielding;

[0106] S9: after the unshielding is completed, the tank container is sent to the tank container longitudinal and transverse translation first area 3, a tank container upper and lower piece area 2 and a tank container in and out area 1 in sequence, and then the tank container is sent out of the tank container in and out area 1.

[0107] The operation method of the tank container powder spraying production line can ensure the stability of the production quality.

[0108] The step S1 specifically comprises the following steps: firstly, an external vehicle is used to send a tank container needing to be sprayed to the tank container in and out area 1, a crane is used to hoist the tank container on a hydraulic lifting trolley, and then the hydraulic lifting trolley is used to send the tank container to the tank container upper and lower piece area 2; the tank container is lifted to a high position by the hydraulic lifting trolley in the tank container upper and lower piece area 2, and then the tank container is hung under a car group equalizing beam by a rigging, so that the tank container is put on line; a friction drive device is used to convey the car group equalizing beam with the tank container from the tank container upper and lower piece area 2 to a transfer machine of the tank container longitudinal and transverse translation first area 3, and then the step S2 is entered.

[0109] The step S2 specifically comprises the following steps: the tank container is conveyed to a tank container pre-treatment area by the transfer machine, so that the tank container enters the powder pre-treatment operation. In the embodiment, the powder pre-treatment operation in the step S2 comprises the following steps: the tank container is pre-degreased, degreased, washed, pure water washed, silane washed, pure water washed, manually blown, hot air dried, strong wind cooled and manually inspected in a tank container moisture drying and cooling area 5 by the friction drive.

[0110] The step S3 specifically comprises the following steps: the tank container is conveyed to a transfer machine of the tank container longitudinal and transverse translation second area 6 by the friction drive, and then is transferred to the tank container buffer area 7 by the transfer machine, and then is conveyed to a transfer machine of the tank container longitudinal and transverse translation third area 8 by the friction drive.

[0111] The step S4 specifically comprises the following steps: the tank container is conveyed to a tank container powder electrostatic spraying first area 9 by the transfer machine of the tank container longitudinal and transverse translation third area 8, and then is automatically sprayed and manually sprayed in sequence.

[0112] Step S5 specifically includes: through the friction drive to the tank box transverse two area 6 of longitudinal movement of the transfer machine. Through the tank box transverse two area 6 of longitudinal movement of the transfer machine to the tank box powder curing processing area of the tank box powder curing heating area 12, first in turn through infrared heating, hot air heating, so as to realize the gradual solidification of powder melting, tank box after heating and curing, through the friction drive to the tank box powder curing cooling area 13, in turn through the strong wind cooling, natural wind cooling, artificial inspection, through the friction drive to the tank box transverse one area 3 of longitudinal movement of the transfer machine. Tank box through the tank box transverse one area 3 of longitudinal movement of the transfer machine to the tank box shielding area 14, here completes the cylinder, end frame and other package shielding work.

[0113] Step S6 specifically includes: after shielding, through the friction drive device from the tank box shielding area 14 to the tank box transverse one area 3 of longitudinal movement of the transfer machine, and then through the transfer machine to the tank box buffer two area 15 for buffering, and then through the tank box transverse four area 16 of longitudinal movement of the transfer machine to the tank box buffer three area 17, and then through the tank box transverse two area 6 of longitudinal movement of the transfer machine, and then through the transfer machine to the tank box buffer one area 7, and then through the friction drive to the tank box transverse three area 8 of longitudinal movement of the transfer machine.

[0114] Step S7 specifically includes: through the tank box transverse three area 8 of longitudinal movement of the transfer machine to the tank box powder electrostatic spraying two area 10 and / or tank box powder electrostatic spraying three area 11, in turn through the powder automatic spraying, artificial powder spraying.

[0115] Step S8 specifically includes: through the friction drive to the tank box transverse two area 6 of longitudinal movement of the transfer machine. Through the tank box transverse two area 6 of longitudinal movement of the transfer machine to the tank box powder curing processing area of the tank box powder curing heating area 12, first in turn through infrared heating, hot air heating, so as to realize the gradual solidification of powder melting, tank box after heating and curing, through the friction drive to the tank box powder curing cooling area 13, in turn through the strong wind cooling, natural wind cooling, artificial inspection, through the friction drive to the tank box transverse one area 3 of longitudinal movement of the transfer machine. Tank box through the tank box transverse one area 3 of longitudinal movement of the transfer machine to the tank box shielding area 14, here completes the cylinder, end frame and other package shielding work.

[0116] Step S9 specifically includes: after shielding, through the friction drive device from the tank box shielding area 14 to the tank box transverse one area 3 of longitudinal movement of the transfer machine, and then through the transfer machine to the tank box up and down area 2. Through the hydraulic lifting trolley to the high position, through the unloading rigging from the car group beam under the tank box is separated, and then the hydraulic lifting trolley to the low position, so as to realize the tank box line. Finally through the hydraulic lifting trolley into the tank box in and out of the tank area 1, through the crane from the hydraulic lifting trolley on the outside of the vehicle and transfer.

[0117] The process layout structure and operation method of the tank container powder spraying production line of the application can better utilize the horizontal and vertical space in the workshop by arranging the horizontal and vertical of each station, and can shorten the moving route of the tank container between different steps and improve the production efficiency by reasonably arranging each station.

[0118] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the description.

[0119] The above-described embodiments only express several implementation manners of the application, the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are all within the protection scope of the application. Therefore, the protection scope of the patent of the application should be subject to the appended claims.

Claims

1. A process layout for a powder spray coating production line for tank containers, characterized in that: The application relates to a powder spraying system for a tank box, which comprises the following parts: a tank box in-out box area extending in the transverse direction; a tank box upper-lower piece area arranged in the longitudinal direction adjacent to the tank box in-out box area; a tank box longitudinal-transverse direction translation area extending in the transverse direction and arranged in the longitudinal direction adjacent to the tank box upper-lower piece area; a tank box pre-treatment area arranged in the longitudinal direction adjacent to a tank box shielding area; a tank box longitudinal-transverse direction translation area II extending in the transverse direction and arranged in the longitudinal direction adjacent to the tank box pre-treatment area; a tank box buffer area arranged in the longitudinal direction adjacent to the tank box longitudinal-transverse direction translation area II; a tank box powder electrostatic spraying area arranged in the transverse direction adjacent to the tank box buffer area and arranged in the longitudinal direction adjacent to the tank box longitudinal-transverse direction translation area II; a tank box longitudinal-transverse direction translation area III extending in the transverse direction and arranged in the longitudinal direction adjacent to the tank box buffer area and the tank box powder electrostatic spraying area; a tank box powder curing treatment area arranged in the longitudinal direction between the tank box longitudinal-transverse direction translation area II and the tank box longitudinal-transverse direction translation area I and arranged in the transverse direction adjacent to the tank box pre-treatment area; a tank box shielding area arranged in the longitudinal direction adjacent to the tank box in-out box area and the tank box longitudinal-transverse direction translation area I and arranged in the transverse direction adjacent to the tank box upper-lower piece area; a tank box transfer area arranged in the longitudinal direction adjacent to the tank box longitudinal-transverse direction translation area I and the tank box longitudinal-transverse direction translation area II and arranged in the transverse direction adjacent to the tank box powder curing heating area and the tank box powder curing cooling area; a moving path of the tank box is as follows: the tank box in-out box area, the tank box upper-lower piece area, the tank box longitudinal-transverse direction translation area I, the tank box pre-treatment area, the tank box longitudinal-transverse direction translation area II, the tank box buffer area, the tank box longitudinal-transverse direction translation area III, the tank box powder electrostatic spraying area, the tank box powder curing treatment area, the tank box longitudinal-transverse direction translation area I, the tank box shielding area, the tank box longitudinal-transverse direction translation area I, the tank box transfer area, the tank box longitudinal-transverse direction translation area II, the tank box buffer area, the tank box longitudinal-transverse direction translation area III, the tank box powder electrostatic spraying area, the tank box powder curing treatment area, the tank box longitudinal-transverse direction translation area I, the tank box upper-lower piece area, the tank box in-out box area, and the overall moving path of the tank box is not only in the longitudinal direction but also reciprocates between the transverse direction and the longitudinal direction, so that the powder spraying process of the tank box can better utilize the transverse space.

2. The process layout of a tank container powder spray coating line according to claim 1, characterized in that: The tank box pre-treatment area comprises a tank box chemical pre-treatment area and a tank box moisture drying and cooling area arranged in the longitudinal direction, the tank box chemical pre-treatment area is arranged adjacent to the tank box longitudinal-transverse direction translation area I, and the tank box moisture drying and cooling area is arranged adjacent to the tank box longitudinal-transverse direction translation area II.

3. The process layout of a tank container powder spray coating line according to claim 2, characterized in that: The tank box chemical pre-treatment area comprises a treatment buffer area, a degreasing chamber, a water washing chamber, a silane chamber and a water washing chamber arranged in sequence from the tank box longitudinal-transverse direction translation area I to the tank box moisture drying and cooling area.

4. The process layout of a tank container powder spray coating line according to claim 2, characterized in that: The tank box moisture drying and cooling area comprises an artificial water blowing chamber, a moisture drying chamber, a strong cooling chamber and an inspection chamber arranged in sequence from the tank box chemical pre-treatment area to the tank box longitudinal-transverse direction translation area II.

5. The process layout of a tank container powder spray coating line according to claim 1, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

6. The process layout of a tank container powder spray coating line according to claim 5, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

7. The process layout of a tank container powder spray coating line according to claim 1, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

8. The process layout of a tank container powder spray coating line according to claim 7, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

9. The process layout of a tank container powder spray coating line according to claim 1, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

10. The process layout of a tank container powder spray coating line according to claim 9, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

11. The process layout of a tank container powder spray coating line according to claim 9, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction.

12. A method of operation of a powder spray production line for tank containers, using the process layout structure of a powder spray production line for tank containers according to any one of claims 1-11, characterized in that: The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction. The tank box powder electrostatic spraying area includes a tank box powder electrostatic spraying area, a tank box powder electrostatic spraying area and a tank box powder electrostatic spraying area, and the tank box buffer area is arranged between the tank box powder electrostatic spraying area and the tank box powder electrostatic spraying area in the transverse direction. The operation method of the tank container powder spraying production line includes the following steps: S1: send the tank box to be sprayed to the tank box in-out area, and then to the tank box up-down area, the tank box longitudinal and transverse translation area one; S2: send the tank box to the tank box pre-treatment area for pre-treatment operation before spraying powder; S3: send the treated tank box to the tank box longitudinal and transverse translation area two, the tank box buffer area one and the tank box longitudinal and transverse translation area three in sequence; S4: send the tank box to the tank box powder electrostatic spraying area for powder spraying treatment; S5: send the tank box after powder spraying treatment to the tank box longitudinal and transverse translation area two, then to the tank box powder curing treatment area for curing treatment, and then to the tank box longitudinal and transverse translation area one, and then send the tank box to the tank box shielding area for wrapping shielding; S6: send the wrapped tank box to the tank box transfer area, and then to the tank box longitudinal and transverse translation area two, the tank box buffer area one and the tank box longitudinal and transverse translation area three in sequence; S7: send the tank box to the tank box powder electrostatic spraying area for powder spraying treatment; S8: the powder sprayed tank is sent into the tank longitudinal and transverse translation two area, then into the tank powder curing treatment area for curing treatment, and then into the tank longitudinal and transverse translation one area, and then the tank is sent into the tank shielding area for unshielding; S9: after the unshielding is completed, the tank is sent into the tank longitudinal and transverse translation one area, the tank upper and lower part area and the tank in and out area in sequence, and then the tank is sent out of the tank in and out area.

13. The method of operating a tank container powder spray production line according to claim 12, characterized in that: The powder spraying pretreatment operation in step S2 includes pre-degreasing, degreasing, water washing, pure water washing, silane, water washing, pure water washing, artificial blowing water, hot air drying, strong wind refrigeration and artificial inspection.

14. The method of operating a tank container powder spray production line according to claim 12, characterized in that: The powder spraying treatment in steps S4 and S7 includes automatic powder spraying step and artificial powder spraying step.

15. The method of operating a tank container powder spray production line according to claim 12, characterized in that: The curing treatment in steps S5 and S8 includes infrared heating, hot air heating, strong wind refrigeration, natural wind refrigeration and artificial inspection.

Images