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

Abstract

The invention provides a process layout of a tank container powder spraying production line. Comprising a tank box inlet and outlet area, a tank box feeding and discharging area, a first tank box longitudinal and transverse translation area, a tank box pretreatment area, a second tank box longitudinal and transverse translation area, a first tank box cache area, a tank box powder electrostatic spraying area, a third tank box longitudinal and transverse translation area, a tank box powder curing treatment area, a tank box shielding area and a tank box transfer area. According to the process layout and the operation method of the tank container powder spraying production line, through transverse and longitudinal arrangement of all stations, transverse and longitudinal spaces in a plant can be better utilized; through reasonable arrangement of the stations, the moving route of the tank container among different steps can be shortened, and the production efficiency is improved; and the flour and the base powder can be cured only by arranging one tank box powder curing treatment area, so that one curing line is saved, and the cost is reduced.

Description

Technical Field

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

[0002] Currently, tank container surface coating primarily utilizes solvent-based paint spraying, which involves sandblasting and cleaning the tank surface, spraying primer, leveling and drying the primer, spraying midcoat, leveling and drying the midcoat, spraying topcoat, and leveling and drying the topcoat. Solvent-based paints contain large amounts of volatile organic compounds (VOCs), such as diluents, which rapidly vaporize at room temperature, severely impacting air quality, human health, and the environment.

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

[0004] Currently, powder spraying technology can solve the above problems. However, the process layout of the existing powder spraying process occupies a large area, the equipment distribution is unreasonable, and the tank container has a long movement route between different steps. Therefore, it is difficult to ensure high production efficiency and the cost is high.

[0005] In view of this, it is necessary to improve the process layout of the existing tank container powder spraying production line to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a process layout for a tank container powder spraying production line to solve the problems of large space occupation and unreasonable equipment distribution in the existing process production line layout.

[0007] To achieve the above objectives, a process layout of a tank container powder spraying production line includes: a tank container entry and exit area, the tank container entry and exit area extending in a transverse direction; A tank container upper and lower parts area, the tank container upper and lower parts area being arranged longitudinally adjacent to the tank container entry and exit area; A zone for longitudinal and transverse translation of the tank container, wherein the zone for longitudinal and transverse translation of the tank container extends in the transverse direction and is arranged adjacent to the upper and lower parts zones of the tank container in the longitudinal direction; A tank container pre-treatment area, wherein the tank container pre-treatment area is arranged along the longitudinally adjacent tank container shielding area; Two zones for longitudinal and transverse translation of the tank container, the two zones for longitudinal and transverse translation of the tank container extending in the transverse direction and arranged adjacent to the tank container pre-treatment zone in the longitudinal direction; A first tank container buffering area, the first tank container buffering area being arranged longitudinally adjacent to the second tank container buffering area in a longitudinal and transverse direction; Tank container powder electrostatic spraying area, the tank container powder electrostatic spraying area is arranged along the first buffer area of ​​the horizontally adjacent tank containers, and along the second longitudinal and transverse translation areas of the vertically adjacent tank containers; The three zones for longitudinal and transverse translation of the tank container extend in the transverse direction and are arranged in the longitudinal direction adjacent to the first tank container buffer zone and the tank container powder electrostatic spraying zone; a tank container powder solidification treatment zone, the tank container powder solidification treatment zone being longitudinally located between the tank container longitudinal and transverse translation zone 2 and the tank container longitudinal and transverse translation zone 1, and being transversely adjacent to the tank container pre-treatment zone; a tank container shielding area, the tank container shielding area being arranged longitudinally adjacent to the tank container entry and exit area and an area shifted longitudinally and transversely from the tank container, and being arranged transversely adjacent to the tank container loading and unloading area; The tank transfer area is arranged along the first longitudinal and transverse translation area and the second longitudinal and transverse translation area of ​​the longitudinally adjacent tanks, and is arranged along the powder solidification heating area and the powder solidification cooling area of ​​the transversely adjacent tanks.

[0008] As a further improvement of the present invention, the tank container pre-treatment area includes a tank container chemical pre-treatment area and a tank container moisture drying and cooling area which are arranged adjacent to each other in the longitudinal direction. The tank container chemical pre-treatment area is arranged adjacent to the tank container by one area in the longitudinal and transverse directions, and the tank container moisture drying and cooling area is arranged adjacent to the tank container by two areas in the longitudinal and transverse directions.

[0009] As a further improvement of the present invention, the tank container chemical pre-treatment area 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, which are arranged in sequence from the tank container to the moisture drying and cooling area.

[0010] As a further improvement of the present invention, the tank container moisture drying and cooling zone includes a manual water blowing chamber, a moisture drying chamber, a strong cooling chamber, and an inspection chamber which are sequentially arranged from the tank container chemical pretreatment zone toward the tank container longitudinal and transverse translation zones.

[0011] As a further improvement of the present invention, the tank container powder electrostatic spraying area includes a tank container powder electrostatic spraying area 1, a tank container powder electrostatic spraying area 2 and a tank container powder electrostatic spraying area 3. The tank container cache area 1 is horizontally arranged between the tank container powder electrostatic spraying area 1 and the tank container powder electrostatic spraying area 2. The tank container powder electrostatic spraying area 1 is horizontally located on the side close to the tank container pre-treatment area.

[0012] As a further improvement of the present invention, the tank box powder electrostatic spraying zone 1 includes a base powder buffer area, a base powder robot spraying room, and a base powder manual spraying room which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 toward the tank box longitudinal and transverse translation zone 2. The tank box powder electrostatic spraying zone 2 and the tank box powder electrostatic spraying zone 3 both include a flour buffer area, a flour robot spraying room, and a flour manual spraying room which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 toward the tank box longitudinal and transverse translation zone 2.

[0013] As a further improvement of the present invention, the tank box powder solidification processing zone includes a tank box powder solidification heating zone and a tank box powder solidification cooling zone arranged adjacent to each other in the longitudinal direction. The tank box powder solidification heating zone is arranged in two zones along the longitudinal and transverse directions of the adjacent tank boxes, and the tank box powder solidification cooling zone is arranged in one zone along the longitudinal and transverse directions of the adjacent tank boxes.

[0014] As a further improvement of the present invention, the tank box powder curing heating zone includes an infrared curing chamber, an infrared / gas curing chamber, a gas curing chamber, and a curing buffer chamber, which are arranged in sequence from the longitudinal and transverse translation zones of the tank box toward the tank box powder curing cooling zone.

[0015] As a further improvement of the present invention, the tank box powder solidification cooling zone includes a forced / natural cooling zone, a cache zone 1, a manual inspection zone and a cache zone 2, which are arranged in sequence from the tank box powder solidification heating zone toward the tank box longitudinally and transversely shifted by one zone.

[0016] As a further improvement of the present invention, the tank container transfer area includes a second tank container buffer area, four tank container longitudinal and transverse translation areas, and a third tank container buffer area, which are arranged in sequence along the longitudinal direction. The second tank container buffer area is arranged adjacent to the first tank container longitudinal and transverse translation area along the longitudinal direction, and the third tank container buffer area is arranged adjacent to the second tank container longitudinal and transverse translation area along the longitudinal direction.

[0017] As a further improvement of the present invention, the second tank container cache area includes a first hanger channel, three storage and transportation areas, and a first rapid unloading area that are arranged adjacent to each other in the transverse direction, wherein the first hanger channel is arranged adjacent to the tank container powder curing treatment area.

[0018] As a further improvement of the present invention, the three tank container cache areas include a second hanger channel, three color change cache areas, and a second fast unloading area that are arranged adjacent to each other in the horizontal direction, wherein the second hanger channel is arranged adjacent to the tank container powder curing treatment area.

[0019] The present invention also provides an operating method of a tank container powder spraying production line, the operating method of the tank container powder spraying production line comprising the following steps: S1: The tanks to be sprayed are sent to the tank loading and unloading area, and then to the tank loading and unloading area and the tank longitudinal and transverse translation area in sequence; S2: Send the tank container to the tank container pre-treatment area for powder spraying pre-treatment operation; S3: The processed tank containers are sequentially sent to the second tank container longitudinal and transverse translation zone, the first tank container buffer zone, and the third tank container longitudinal and transverse translation zone; S4: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S5: The powder-sprayed tank container is sent to the tank container longitudinal and transverse translation zone 2, and then to the tank container powder curing treatment zone for curing treatment. The tank container is then sent to the tank container longitudinal and transverse translation zone 1, and then to the tank container shielding zone for wrapping and shielding. S6: The wrapped tank container is sent to the tank container transfer area, and then sequentially sent to the tank container longitudinal and transverse translation area 2, the tank container buffer area 1, and the tank container longitudinal and transverse translation area 3; S7: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S8: The tank container after powder spraying is sent to the tank container longitudinal and transverse translation zone 2, and then to the tank container powder curing treatment zone for curing treatment, and then sent to the tank container longitudinal and transverse translation zone 1, and then sent to the tank container shielding zone for deshielding; S9: After the masking is completed, the tank container is sequentially sent to the tank container longitudinal and transverse translation area 1, the tank container loading and unloading area, and the tank container loading and unloading area, and finally the tank container is sent out of the tank container loading and unloading area.

[0020] As a further improvement of the present invention, the pre-powder spraying treatment operation in step S2 includes: pre-degreasing, degreasing, water washing, pure water washing, silane, water washing, pure water washing, manual water blowing, hot air drying, strong air cooling, and manual inspection of the tank box.

[0021] As a further improvement of the present invention, the powder spraying process in step S4 and step S7 includes an automatic powder spraying step and a manual powder spraying step.

[0022] As a further improvement of the present invention, the curing treatment in steps S5 and S8 includes infrared heating, hot air heating, strong air cooling, natural air cooling, and manual inspection.

[0023] The beneficial effects of the present invention are as follows: the process layout and operation method of the tank container powder spraying production line of the present invention can better utilize the horizontal and vertical space in the factory through the horizontal and vertical arrangement of each workstation; through the reasonable arrangement of each workstation, the movement route of the tank container between different steps can be shortened, thereby improving production efficiency; only one tank container powder curing treatment area is provided to achieve the curing of the flour powder and the base powder, saving a curing line and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is a simplified diagram of the process layout of the tank container powder spraying production line of the present invention; Figure 2 This is a detailed diagram of the process layout of the tank container powder spraying production line of the present invention; Figure 3 The present invention is a flow chart of the operation method of the tank container powder spraying production line. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figures 1 to 2 As shown, the present invention provides a process layout of a tank container powder spraying production line, including: a tank container entry and exit area 1, wherein the tank container entry and exit area 1 extends in a transverse direction; a tank container upper and lower parts area 2, the tank container upper and lower parts area 2 being arranged longitudinally adjacent to the tank container entry and exit area 1; A tank container longitudinal and transverse translation zone 3, the tank container longitudinal and transverse translation zone 3 extends in the transverse direction and is arranged adjacent to the tank container upper and lower parts zone 2 in the longitudinal direction; A tank container pre-treatment area, the tank container pre-treatment area being arranged along the longitudinally adjacent tank container shielding area 14; a second tank container longitudinal and transverse translation zone 6, the second tank container longitudinal and transverse translation zone 6 extending in the transverse direction and arranged adjacent to the tank container pre-treatment zone in the longitudinal direction; a first tank container buffering area 7, the first tank container buffering area 7 being arranged longitudinally adjacent to the second tank container longitudinally and transversely shifted area 6; Tank container powder electrostatic spraying area, the tank container powder electrostatic spraying area is arranged along the horizontally adjacent tank container buffer zone 1 7, and along the vertically adjacent tank container longitudinal and transverse translation zone 2 6; Three zones 8 for longitudinal and transverse translation of the tank container, the three zones 8 for longitudinal and transverse translation of the tank container extending in the transverse direction and arranged in the longitudinal direction adjacent to the first tank container buffer zone 7 and the tank container powder electrostatic spraying zone; a tank container powder solidification treatment zone, the tank container powder solidification treatment zone being longitudinally located between the tank container longitudinal and transverse translation zone 2 6 and the tank container longitudinal and transverse translation zone 1 3 and being laterally adjacent to the tank container pre-treatment zone; a tank container shielding area 14, the tank container shielding area 14 being arranged longitudinally adjacent to the tank container entry and exit area 1 and the tank container longitudinal and transverse translation area 3, and being arranged transversely adjacent to the tank container loading and unloading area 2; The tank transfer area is arranged along the longitudinally adjacent tank boxes' longitudinal and transverse translation zone 1 3 and the tank box's longitudinal and transverse translation zone 2 6, and is arranged along the transversely adjacent tank boxes' powder solidification heating zone 12 and the tank box's powder solidification cooling zone 13.

[0029] The movement path of the tank container is as follows: tank container entry and exit area 1, tank container loading and unloading area 2, tank container longitudinal and transverse translation area 1 3, tank container pre-treatment area, tank container longitudinal and transverse translation area 2 6, tank container longitudinal and transverse translation area 1 7, tank container longitudinal and transverse translation area 3 8, tank container powder electrostatic spraying area, tank container powder curing treatment area, tank container longitudinal and transverse translation area 1 3, tank container shielding area 14, tank container longitudinal and transverse translation area 1 3, tank container transfer area, tank container longitudinal and transverse translation area 2 6, tank container cache area 1 7, tank container longitudinal and transverse translation area 3 8, tank container powder electrostatic spraying area, tank container powder curing treatment area, tank container longitudinal and transverse translation area 1 3, tank container loading and unloading area 2, tank container entry and exit area 1. The overall movement path of the tank container is not just along the longitudinal direction, but reciprocates between the transverse and longitudinal directions, so that the tank container powder spraying process can better utilize the transverse space.

[0030] The same tank container powder curing treatment area is used for flour powder curing and base powder curing. Through reasonable production scheduling, products with similar conditions such as structure, powder matching and curing temperature are uniformly sent to the tank container powder curing treatment area for curing, ensuring consistent curing conditions within a certain period of time. In addition, they can be arranged in descending order according to different curing temperatures, ensuring quality without affecting the cycle time, thereby saving a production line curing line and reducing costs.

[0031] The workstation areas used in similar steps are adjacent, which can shorten the movement route of the tank container between different steps and improve production efficiency.

[0032] In this embodiment, through reasonable layout, the horizontal space and the vertical space are fully utilized, and the path is saved, thereby improving production efficiency.

[0033] The main equipment in the tank container loading and unloading area 1 includes a dedicated tank container crane and a hydraulic lift trolley. When loading a tank container, it is transported to this area by an external vehicle, then hoisted onto the hydraulic lift trolley by the dedicated tank container crane. The hydraulic lift trolley then transports the tank container to the tank container loading and unloading area 2. When unloading a tank container, the hydraulic lift trolley transports the tank container from the tank container loading and unloading area 2 to the tank container loading and unloading area 1, where it is hoisted onto an external vehicle by the dedicated tank container crane for transfer.

[0034] The main equipment in tank loading and unloading area 2 includes a lifting platform, a tank train equalizing beam, and a friction drive. When loading, the tank is lifted to a high position by a hydraulic lift trolley in tank loading and unloading area 1. The operator is lowered to a high position by the lifting platform. The operator uses rigging to hang the tank under the train equalizing beam and then lowers the hydraulic lift trolley to a low position. When unloading, the hydraulic lift trolley is raised to a high position to support the tank. The operator is lowered to a high position by the lifting platform. The operator removes the rigging connecting the tank to the train equalizing beam and then lowers the hydraulic lift trolley to a low position.

[0035] Among them: the tank container loading and unloading area 2 has two workstations and adopts a non-fixed workstation operation mode, that is, each workstation has both loading and unloading functions, and priority is given to vacant workstations to avoid waiting time and improve efficiency.

[0036] The primary equipment in Zone 3 for the longitudinal and transverse movement of tank containers includes a tank container transfer machine and a friction drive. This area is primarily used to transfer tank container-laden equalizer beams to adjacent areas. When a tank container-laden equalizer beam needs to be transferred, the transfer machine is moved to the corresponding position in the adjacent area, and the friction drive is used to connect or remove the equalizer beam, thus enabling tank container transfer.

[0037] The tank container pre-treatment area includes a tank container chemical pre-treatment area 4 and a tank container moisture drying and cooling area 5 which are arranged adjacent to each other in the longitudinal direction. The tank container chemical pre-treatment area 4 is arranged adjacent to the tank container longitudinally and transversely shifted area 3 by one zone, and the tank container moisture drying and cooling area 5 is arranged adjacent to the tank container longitudinally and transversely shifted area 6 by two zones.

[0038] The tank container can pass through the tank container chemical pre-treatment zone 4 and the tank container moisture drying and cooling zone 5 in the longitudinal direction. The tank container chemical pre-treatment zone 4 is used to pre-treat the tank container, and the tank container moisture drying and cooling zone 5 is used to dry the treated tank container to prevent moisture from affecting the subsequent powder spraying effect. At the same time, the dried tank container is cooled to prevent high temperature from affecting the subsequent powder spraying effect.

[0039] The tank chemical pretreatment area 4 includes a treatment buffer, 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 longitudinally and transversely shifted zone 3 toward the tank moisture drying and cooling zone 5. The treatment buffer is used for temporary storage of the tanks. In addition to the treatment buffer, the tank chemical pretreatment area 4 features four process spray sections, with the tanks arranged longitudinally. Each process spray section operates intermittently, allowing one or two different spray operations to be performed within the same process section, with sufficient drainage time between them before the tanks move to the next process section and then perform the different operations. Each process section can meet the different process spray time requirements. Each process section achieves different cleaning processes by switching the spray piping and spray pumps. The tank chemical pretreatment area 4 utilizes a four-station, seven-process design. With the exception of the silane chamber, all other processes share a single station, allowing two processes to be completed within a single station, saving space.

[0040] In the pre-degreasing / degreasing room, pre-degreasing is required first and then degreasing operation.

[0041] The tank moisture drying and cooling zone 5 comprises a manual water blowing chamber, a moisture drying chamber, a forced cooling chamber, and an inspection chamber, arranged sequentially from the tank chemical pre-treatment zone 4 toward the tank longitudinally and transversely shifted zones 6. The tanks are arranged longitudinally in this zone. The manual water blowing chamber cleans away water trapped in dead corners of the tanks, transported from the chemical pre-treatment zone 4. The moisture drying chamber then dries the surface moisture of the tanks. The forced cooling chamber then rapidly cools the tanks using strong cold air. Finally, the inspection chamber manually inspects the tank surfaces for the presence of moisture.

[0042] The main equipment in the second area of ​​tank container longitudinal and transverse translation, Zone 6, includes a tank container transfer machine and a friction drive. This system is primarily used to transfer tank container-laden equalizer beams to adjacent areas. When a tank container-laden equalizer beam needs to be transferred, the transfer machine is moved to the corresponding position in the adjacent area, and the friction drive is used to connect or remove the equalizer beam, thus enabling tank container transfer.

[0043] Tank container buffer zone 1 (7) primarily features friction drive devices. Tanks are arranged longitudinally in zone 1 (7). When powder spraying is required, they are transferred to zone 1 (6) via zone 2 for longitudinal and transverse translation. After buffering, they are then transferred to zone 3 for longitudinal and transverse translation (8).

[0044] The main equipment for the three-zone, vertical and horizontal tank container translation system 8 includes a tank container transfer machine and a friction drive device. This system is primarily used to transfer tank container-laden equalizer beams between adjacent areas. When a tank container-laden equalizer beam needs to be transferred, the transfer machine is moved to the corresponding position in the adjacent area, and the friction drive device is used to connect or remove the equalizer beam, thus enabling tank container transfer.

[0045] In this embodiment, the tank container powder electrostatic spraying area includes the tank container powder electrostatic spraying area 1 9, the tank container powder electrostatic spraying area 2 10 and the tank container powder electrostatic spraying area 3 11. The tank container cache area 1 7 is laterally arranged between the tank container powder electrostatic spraying area 1 9 and the tank container powder electrostatic spraying area 2 10. The tank container powder electrostatic spraying area 1 9 is laterally located on the side close to the tank container pre-treatment area, and the tank container cache area 1 7 is laterally close to the tank container powder curing treatment area.

[0046] In this embodiment, the tank box cache area 7 is set between the tank box powder electrostatic spraying area 1 9 and the tank box powder electrostatic spraying area 2 10. Since both the flour spraying and the base powder spraying need to pass through the tank box powder curing treatment area, this setting minimizes the movement path of the flour spraying and the base powder spraying towards the tank box powder curing treatment area after the flour spraying and the base powder spraying, thereby improving efficiency.

[0047] The tank box powder electrostatic spraying zone 1 9 includes a base powder buffer area, a base powder robot spraying room, and a base powder manual spraying room, which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 8 toward the tank box longitudinal and transverse translation zone 2 6. The tank box powder electrostatic spraying zone 2 10 and the tank box powder electrostatic spraying zone 3 11 both include a flour buffer area, a flour robot spraying room, and a flour manual spraying room, which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 8 toward the tank box longitudinal and transverse translation zone 2 6.

[0048] Tank container electrostatic powder spraying zone 1 (9) features vertically arranged tanks and includes both a robotic and manual base powder spray booth. The robotic base powder spray booth is used for large-surface tank container spraying, employing robots for spraying. Pre-programmed motion trajectories teach the robot to automatically spray at the desired locations on the workpiece, resulting in a low empty spray rate and high powder utilization. The manual base powder spray booth is used for spraying smaller areas of the tank container. Depending on the base surface spraying results, touch-up spraying or overspray cleaning can be performed.

[0049] Tank container electrostatic powder spraying area 2 (10) and tank container electrostatic powder spraying area 3 (11) are primarily composed of one set of robotic powder spray booths and one set of manual powder spray booths, with the tank containers arranged longitudinally. The robotic powder spray booth is used for large-surface spraying of the tank containers. Using robots, pre-programmed motion trajectories are used to automatically spray the workpiece at the desired spraying location, resulting in a low dry spray rate and high powder utilization. The two manual powder spray booths are used for spraying smaller surfaces of the tank containers. Depending on the spraying results on the bottom surface, touch-up spraying or overspray cleaning can be performed.

[0050] In this embodiment, when only one color needs to be sprayed, one of the tank box powder electrostatic spraying area 2 10 and the tank box powder electrostatic spraying area 3 11 is used as a backup. Preferably, the tank box powder electrostatic spraying area 3 11, which is farther away from the tank box powder curing treatment area, is used as a backup. When the color of the product changes, switch to the backup area, clean the work area, and switch to the backup spraying area after cleaning to avoid waiting time.

[0051] When special color requirements are required for tank container products, such as two colors, the tank container powder electrostatic spraying zone 2 10 and the tank container powder electrostatic spraying zone 3 11 can be used simultaneously. For example, the tank container powder electrostatic spraying zone 2 10 sprays the cylinder in blue; the tank container powder electrostatic spraying zone 3 11 sprays the cylinder in another color, which reduces waiting and re-line time and improves efficiency.

[0052] In addition, when a failure or equipment replacement occurs in one of the tank container powder electrostatic spraying area 2 10 and the tank container powder electrostatic spraying area 3 11, operations can be carried out in the other area to avoid line stoppage and waiting.

[0053] The tank box powder solidification processing area includes a tank box powder solidification heating area 12 and a tank box powder solidification cooling area 13 which are arranged adjacent to each other in the longitudinal direction. The tank box powder solidification heating area 12 is arranged along the longitudinal direction and horizontal direction of the tank box by two zones 6, and the tank box powder solidification cooling area 13 is arranged along the longitudinal direction and horizontal direction of the tank box by one zone 3.

[0054] The tank container powder curing heating zone 12 includes an infrared curing chamber, an infrared / gas curing chamber, a gas curing chamber, and a curing buffer chamber, arranged longitudinally from the tank container's longitudinal and transverse translation zones 6 toward the tank container powder curing cooling zone 13. The tank container powder curing heating zone 12 primarily comprises a chamber, a direct gas heating system, a hot air circulation system, an exhaust system, a fume exhaust duct, and an insulated door. The powder curing furnace is also a floor-standing, straight-through furnace, with the tank containers arranged longitudinally within the chamber. There are a total of six heating and curing stations, four of which are gas curing chambers. The infrared curing zone heats up quickly and is used for specialized products such as carbon steel containers; standard tank containers do not require infrared. The six curing stations provide sufficient cycle time (reserved) for future capacity upgrades. The powder-coated tank containers pass through the curing heating zone within a specified timeframe, where the powder melts and solidifies.

[0055] The tank powder curing cooling zone 13 comprises a forced / natural cooling zone, a buffer zone 1, a manual inspection zone, and a buffer zone 2, arranged longitudinally from the tank powder curing heating zone 12 toward the tank's longitudinal and transverse translation zone 3. The tank powder curing cooling zone 13 primarily comprises a chamber, a ventilation system, and a ventilation enclosure. It is used to force cool heated tanks. The tanks are arranged longitudinally, with a total of four cooling stations, three of which are forced / natural cooling zones. Buffer zone 1, which also provides natural cooling, serves as the fourth cooling station and also serves as a tank buffer.

[0056] Tank container shielding area 14 features a lifting platform, a tank container vehicle balancing beam, and a friction drive. Four workstations are arranged in parallel, enabling simultaneous shielding and unshielding of four tank containers.

[0057] The tank container transfer area includes a second tank container buffer area 15, a fourth tank container longitudinal and transverse translation area 16, and a third tank container buffer area 17, which are arranged in sequence along the longitudinal direction. The second tank container buffer area 15 is arranged adjacent to the first tank container longitudinal and transverse translation area 3 along the longitudinal direction, and the third tank container buffer area 17 is arranged adjacent to the second tank container longitudinal and transverse translation area 6 along the longitudinal direction.

[0058] The second tank container buffer area 15 includes a first hanger channel, three storage and transportation areas, and a first rapid unloading area, all arranged in a horizontally adjacent manner. The first hanger channel is located adjacent to the tank container powder curing area. The main equipment in the second tank container buffer area 15 is a heavy-duty power-and-free chain system for conveying, including front and rear vehicle groups, an equalizing beam, a traction chain, a traction chain drive, and a friction drive. The second tank container buffer area 15 has four caching lines, including three storage and transportation areas and a first rapid unloading area, for caching tank containers.

[0059] In this embodiment, the second tank container buffer area 15 has a total of five channels. The first hanger channel is closest to the tank container powder solidification treatment area and is used for the transfer and transportation of hangers; the first rapid unloading area is farthest from the tank container powder solidification treatment area. When a product has quality problems and needs to be processed offline, it can be quickly moved to the online area along this first rapid unloading area; the three middle storage and transportation areas are conventional buffer channels, which are mainly used for color and work order product spray identification: when color change or switching of different work order products occurs, products of the same color / work order can be unified into the same channel to facilitate central control management.

[0060] The main equipment in the four zones 16 for the longitudinal and transverse movement of tank containers includes a tank container transfer machine and a friction drive. This area is primarily used to transfer tank container-laden equalizer beams to adjacent zones. When a tank container-laden equalizer beam needs to be transferred, the transfer machine is moved to the corresponding position in the adjacent zone, and the friction drive is used to connect or remove the equalizer beam, thus completing the tank container transfer.

[0061] The tank container buffer zone 3 (17) includes a second hanger channel, three color-changing buffer zones, and a second rapid unloading zone, all located adjacent to each other in the transverse direction. The second hanger channel is located adjacent to the tank container powder curing zone. The tank container buffer zone 3 (17) primarily utilizes a heavy-duty power-and-free chain system for transport, including front and rear vehicle groups, an equalizing beam, a traction chain, a traction chain drive, and a friction drive. Four buffer lines, including three color-changing buffer zones and a second rapid unloading zone, are used for tank container buffering.

[0062] In this embodiment, the layout of tank cache zone 3 17 is identical to that of tank cache zone 2 15 ; it also features five lanes, with the second hanger lane and the second fast unloading zone located closest to and furthest from the tank powder curing area, respectively. The three center color-change buffer zones differ slightly: one is a transitional channel (not stocked with products), while the other two are for special products (daily production of less than four units) and special colors (two- or three-color). Due to their smaller quantities, these products must accumulate a certain amount before being sprayed together. When the topcoat is a single color, one of the three center regular lanes is designated as a fast lane to improve efficiency. When the topcoat is two-color (different colors for the barrel and frame), the product selects one lane before the frame is sprayed, and then selects another lane afterward, enabling process identification and management of different products.

[0063] like Figure 3 As shown, the operating method of the tank container powder spraying production line of the present invention can be based on the process layout of the above-mentioned tank container powder spraying production line, or can be implemented independently. The operating method of the tank container powder spraying production line includes the following steps: S1: The tanks to be sprayed are sent to the tank loading and unloading area 1, and then sequentially sent to the tank loading and unloading area 2 and the tank longitudinal and transverse translation area 3; S2: Send the tank container to the tank container pre-treatment area for powder spraying pre-treatment operation; S3: The processed tank containers are sequentially sent to the second tank container longitudinal and transverse translation zone 6, the first tank container buffer zone 7, and the third tank container longitudinal and transverse translation zone 8; S4: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S5: The powder-sprayed tank container is sent to the second tank container longitudinal and transverse translation zone 6 and then to the tank container powder curing zone for curing. The tank container is then sent to the first tank container longitudinal and transverse translation zone 3 and then to the tank container shielding zone 14 for wrapping and shielding. S6: The wrapped tank container is sent to the tank container transfer area, and then sequentially sent to the tank container longitudinal and transverse translation zone 2 6, the tank container buffer zone 1 7, and the tank container longitudinal and transverse translation zone 3 8; S7: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S8: The powder-sprayed tank container is sent to the second tank container longitudinal and transverse translation zone 6 and then to the tank container powder curing zone for curing. The tank container is then sent to the first tank container longitudinal and transverse translation zone 3 and then to the tank container shielding zone 14 for deshielding. S9: After the masking is completed, the tank container is sequentially sent to the tank container longitudinal and transverse translation area 1 3, the tank container loading and unloading area 2 and the tank container inlet and outlet area 1, and then the tank container is sent out of the tank container inlet and outlet area 1.

[0064] The operating method of the tank container powder spraying production line of the present invention can ensure the stability of production quality.

[0065] Step S1 specifically includes: first, the tank container to be sprayed is delivered to the tank container loading and unloading area 1 by an external vehicle, the tank container is hoisted onto a hydraulic lifting trolley by a driving crane, and then delivered to the tank container loading and unloading area 2 by the hydraulic lifting trolley; the tank container is lifted to a high position by the hydraulic lifting trolley in the tank container loading and unloading area 2, and the tank container is hung under the vehicle group equalizing beam by rigging, so that the tank container is put on the line; the vehicle group equalizing beam with the tank container hung is transported from the tank container loading and unloading area 2 to the moving machine of the tank container longitudinal and transverse translation area 1 3 by a friction drive device, and then the process goes to step S2.

[0066] Step S2 specifically involves conveying the tank container to the tank container pre-treatment area via a transporter, thereby allowing the tank container to enter the pre-powdering process. In this embodiment, the pre-powdering process in step S2 includes: pre-degreasing, degreasing, water washing, pure water washing, silane washing, water washing, pure water washing, and manual water blowing. The tank container is then conveyed to the tank container moisture drying and cooling area 5 via friction drive for hot air drying, forced air cooling, and manual inspection.

[0067] Step S3 specifically includes: conveying the tank container to the moving machine of the second longitudinal and transverse translation zone 6 by friction drive, then transferring the tank container to the first buffer zone 7 by the moving machine, and conveying the tank container to the moving machine of the third longitudinal and transverse translation zone 8 by friction drive.

[0068] Step S4 specifically includes: transporting the tank to the first tank electrostatic powder spraying zone 9 by means of a moving machine in the third tank longitudinal and transverse translation zone 8, and sequentially undergoing automatic powder spraying and manual powder spraying.

[0069] Step S5 specifically includes: conveying the tank container to the conveyor in the second zone 6 for longitudinal and transverse translation via friction drive. The conveyor in this zone 6 then conveys the tank container to the powder curing heating zone 12, where the powder is first cured. The container undergoes infrared heating and then hot air heating, melting and gradually curing the powder. After heating and curing, the container is then conveyed to the powder curing cooling zone 13 via friction drive. After forced air cooling, natural air cooling, and manual inspection, the container is then conveyed to the conveyor in the first zone 3 for longitudinal and transverse translation. The conveyor in this zone 3 then conveys the tank container to the tank shielding zone 14, where the cylinder, end frame, and other components are wrapped and shielded.

[0070] Step S6 specifically includes: after shielding is completed, the tank container is transported from the tank container shielding area 14 to the transfer machine of the tank container longitudinal and transverse translation area 1 3 by the friction drive device, and then transported to the tank container buffer area 2 15 by the transfer machine for caching, and then transported to the tank container buffer area 3 17 by the transfer machine of the tank container longitudinal and transverse translation area 4 16, and then transported to the tank container buffer area 3 17 by the transfer machine of the tank container longitudinal and transverse translation area 2 6, and then transferred to the tank container buffer area 1 7 by the transfer machine, and then transported to the transfer machine of the tank container longitudinal and transverse translation area 3 8 by friction drive.

[0071] Step S7 specifically includes: transporting the tank to the second tank electrostatic powder spraying zone 10 and / or the third tank electrostatic powder spraying zone 11 by the moving machine of the tank longitudinal and transverse translation zone 3 8, and sequentially undergoing automatic powder spraying and manual powder spraying.

[0072] Step S8 specifically includes: conveying the tank container to the transporter in the second longitudinal and transverse translation zone 6 via friction drive. The transporter in this zone 6 then transports the tank container to the powder curing heating zone 12, where the powder is solidified. The container undergoes infrared heating and hot air heating, melting the powder and gradually solidifying it. After heating and solidification, the container is then conveyed to the powder curing cooling zone 13 via friction drive. After forced air cooling, natural air cooling, and manual inspection, the container is then conveyed to the transporter in the first longitudinal and transverse translation zone 3 via friction drive. The transporter in this zone 3 then transports the tank container to the tank shielding zone 14, where the shielding of the cylinder, end frame, and other packaging is removed.

[0073] Step S9 specifically includes: After the shielding is completed, the tank container is transported from the tank shielding area 14 to the tank container longitudinal and transverse translation area 1 3 by a friction drive device. The tank container is then transported by the transport device to the tank container loading and unloading area 2. The tank container is lifted to a high position by a hydraulic lift trolley. The rigging is removed to separate the tank container from the vehicle group's equalizing beam. The hydraulic lift trolley is then lowered to a low position to complete the tank container unloading. Finally, the hydraulic lift trolley transports the tank container to the tank container loading and unloading area 1. The crane then lifts the tank container from the hydraulic lift trolley and places it on an external vehicle for transportation.

[0074] The process layout and operation method of the tank container powder spraying production line of the present invention can better utilize the horizontal and vertical space in the factory through the horizontal and vertical arrangement of each workstation; through the reasonable arrangement of each workstation, the movement route of the tank container between different steps can be shortened, thereby improving production efficiency; only one tank container powder curing treatment area is provided to achieve the curing of the flour powder and the base powder, saving a curing line and reducing costs.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A process layout of a tank container powder spraying production line, characterized by: include: a tank container entry and exit area, the tank container entry and exit area extending in a transverse direction; A tank container upper and lower parts area, the tank container upper and lower parts area being arranged longitudinally adjacent to the tank container entry and exit area; A zone for longitudinal and transverse translation of the tank container, wherein the zone for longitudinal and transverse translation of the tank container extends in the transverse direction and is arranged adjacent to the upper and lower parts zones of the tank container in the longitudinal direction; A tank container pre-treatment area, wherein the tank container pre-treatment area is arranged along the longitudinally adjacent tank container shielding area; Two zones for longitudinal and transverse translation of the tank container, the two zones for longitudinal and transverse translation of the tank container extending in the transverse direction and arranged adjacent to the tank container pre-treatment zone in the longitudinal direction; A first tank container buffering area, the first tank container buffering area being arranged longitudinally adjacent to the second tank container buffering area in a longitudinal and transverse direction; Tank container powder electrostatic spraying area, the tank container powder electrostatic spraying area is arranged along the first buffer area of ​​the horizontally adjacent tank containers, and along the second longitudinal and transverse translation areas of the vertically adjacent tank containers; The three zones for longitudinal and transverse translation of the tank container extend in the transverse direction and are arranged in the longitudinal direction adjacent to the first tank container buffer zone and the tank container powder electrostatic spraying zone; a tank container powder solidification treatment zone, the tank container powder solidification treatment zone being longitudinally located between the tank container longitudinal and transverse translation zone 2 and the tank container longitudinal and transverse translation zone 1, and being laterally adjacent to the tank container pre-treatment zone; a tank container shielding area, the tank container shielding area being arranged longitudinally adjacent to the tank container entry and exit area and the tank container longitudinal and transverse translation area, and being arranged transversely adjacent to the tank container loading and unloading area; The tank transfer area is arranged along the first longitudinal and transverse translation area and the second longitudinal and transverse translation area of ​​the longitudinally adjacent tanks, and is arranged along the powder solidification heating area and the powder solidification cooling area of ​​the transversely adjacent tanks.

2. The process layout of the tank container powder spraying production line according to claim 1 is characterized by: The tank container pre-treatment area includes a tank container chemical pre-treatment area and a tank container moisture drying and cooling area which are arranged adjacent to each other in the longitudinal direction. The tank container chemical pre-treatment area is arranged adjacent to the tank container by one area in the longitudinal and transverse directions, and the tank container moisture drying and cooling area is arranged adjacent to the tank container by two areas in the longitudinal and transverse directions.

3. The process layout of the tank container powder spraying production line according to claim 2 is characterized by: The tank chemical pre-treatment area includes a processing buffer area, a pre-degreasing / degreasing room, a water washing / pure water washing room, a silane room, and a water washing / pure water washing room, which are arranged in sequence from the tank longitudinally and transversely to the tank moisture drying and cooling area.

4. The process layout of the tank container powder spraying production line according to claim 2 is characterized by: The tank container moisture drying and cooling area includes a manual water blowing room, a moisture drying room, a strong cooling room, and an inspection room which are sequentially arranged from the tank container chemical pre-treatment area toward the tank container longitudinal and transverse translation areas.

5. The process layout of the tank container powder spraying production line according to claim 1 is characterized by: The tank container powder electrostatic spraying area includes tank container powder electrostatic spraying area 1, tank container powder electrostatic spraying area 2 and tank container powder electrostatic spraying area 3. The tank container cache area 1 is horizontally arranged between the tank container powder electrostatic spraying area 1 and the tank container powder electrostatic spraying area 2. The tank container powder electrostatic spraying area 1 is horizontally located on the side close to the tank container pre-treatment area.

6. The process layout of the tank container powder spraying production line according to claim 5 is characterized by: The tank box powder electrostatic spraying zone 1 includes a base powder buffer area, a base powder robot spraying room, and a base powder manual spraying room, which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 toward the tank box longitudinal and transverse translation zone 2. The tank box powder electrostatic spraying zone 2 and the tank box powder electrostatic spraying zone 3 both include a flour buffer area, a flour robot spraying room, and a flour manual spraying room, which are arranged in sequence from the tank box longitudinal and transverse translation zone 3 toward the tank box longitudinal and transverse translation zone 2.

7. The process layout of the tank container powder spraying production line according to claim 1 is characterized by: The tank box powder solidification processing area includes a tank box powder solidification heating area and a tank box powder solidification cooling area which are arranged adjacent to each other in the longitudinal direction. The tank box powder solidification heating area is arranged adjacent to the tank box in the longitudinal direction and shifted by two areas in the longitudinal and transverse directions. The tank box powder solidification cooling area is arranged adjacent to the tank box in the longitudinal direction and shifted by one area in the longitudinal and transverse directions.

8. The process layout of the tank container powder spraying production line according to claim 7 is characterized by: The tank box powder curing heating zone includes an infrared curing chamber, an infrared / gas curing chamber, a gas curing chamber, and a curing buffer chamber which are arranged in sequence along the longitudinal direction from the tank box longitudinal and transverse translation zones toward the tank box powder curing cooling zone.

9. The process layout of the tank container powder spraying production line according to claim 7 is characterized by: The tank box powder solidification cooling zone includes a forced / natural cooling zone, a buffer zone 1, a manual inspection zone and a buffer zone 2 which are arranged in sequence from the tank box powder solidification heating zone toward the tank box longitudinally and transversely by one zone.

10. The process layout of the tank container powder spraying production line according to claim 1 is characterized by: The tank container transfer area includes a second tank container buffer area, a fourth tank container longitudinal and transverse translation area, and a third tank container buffer area, which are arranged in sequence along the longitudinal direction. The second tank container buffer area is arranged adjacent to the first tank container longitudinal and transverse translation area along the longitudinal direction, and the third tank container buffer area is arranged adjacent to the second tank container longitudinal and transverse translation area along the longitudinal direction.

11. The process layout of the tank container powder spraying production line according to claim 10 is characterized by: The second tank container cache area includes a first hanger channel, three storage and transportation areas, and a first rapid unloading area that are arranged adjacent to each other in the transverse direction, wherein the first hanger channel is arranged adjacent to the tank container powder curing treatment area.

12. The process layout of the tank container powder spraying production line according to claim 10, characterized in that: The three tank container buffer areas include a second hanger channel, three color change buffer areas, and a second fast unloading area that are arranged adjacent to each other in the transverse direction, wherein the second hanger channel is arranged adjacent to the tank container powder curing treatment area.

13. An operating method for a tank container powder spraying production line, characterized by: The operation method of the tank container powder spraying production line includes the following steps: S1: The tanks to be sprayed are sent to the tank loading and unloading area, and then to the tank loading and unloading area and the tank longitudinal and transverse translation area in sequence; S2: Send the tank container to the tank container pre-treatment area for powder spraying pre-treatment operation; S3: The processed tank containers are sequentially sent to the second tank container longitudinal and transverse translation zone, the first tank container buffer zone, and the third tank container longitudinal and transverse translation zone; S4: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S5: The powder-sprayed tank container is sent to the tank container longitudinal and transverse translation zone 2, and then to the tank container powder curing treatment zone for curing treatment. The tank container is then sent to the tank container longitudinal and transverse translation zone 1, and then to the tank container shielding zone for wrapping and shielding. S6: The wrapped tank container is sent to the tank container transfer area, and then sequentially sent to the tank container longitudinal and transverse translation area 2, the tank container buffer area 1, and the tank container longitudinal and transverse translation area 3; S7: Send the tank container to the tank container powder electrostatic spraying area for powder spraying; S8: The tank container after powder spraying is sent to the tank container longitudinal and transverse translation zone 2, and then to the tank container powder curing treatment zone for curing treatment, and then sent to the tank container longitudinal and transverse translation zone 1, and then sent to the tank container shielding zone for deshielding; S9: After the masking is completed, the tank container is sequentially sent to the tank container longitudinal and transverse translation area 1, the tank container loading and unloading area, and the tank container loading and unloading area, and finally the tank container is sent out of the tank container loading and unloading area.

14. The operating method of the tank container powder spraying production line according to claim 13, characterized in that: The pre-powder spraying treatment in step S2 includes: pre-degreasing, degreasing, water washing, pure water washing, silane, water washing, pure water washing, manual water blowing, hot air drying, strong air cooling, and manual inspection of the tank container.

15. The operating method of the tank container powder spraying production line according to claim 13, characterized in that: The powder spraying process in step S4 and step S7 includes an automatic powder spraying step and a manual powder spraying step.

16. The operating method of the tank container powder spraying production line according to claim 13, characterized in that: The curing process in steps S5 and S8 includes infrared heating, hot air heating, strong air cooling, natural air cooling, and manual inspection.

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