An automated coating system

Abstract

The present invention discloses an automatic coating system, including a workpiece barrel, a coating and drying device, a connecting and transporting device, and a heating device. The automatic coating system uses a loading and unloading mechanism to load the workpiece barrel onto the unloading end of a translational dumping branch, and the translational dumping branch drives the workpiece barrel to enter the coating and drying device for coating and drying. After the coating and drying are completed, the translational dumping branch drives the workpiece barrel to move to the unloading end for dumping. The workpiece in the workpiece barrel falls into the spreading mechanism and is spread flat on the loading end of the heating and transporting branch. The heating and transporting branch transports the workpiece and heats and cures the coating layer on the workpiece, thereby realizing the automation of coating, conveying, and heating and curing, reducing the degree of manual participation, and having a high degree of automation; a key panel is used to facilitate the control of the coating and drying device, the connecting and transporting device, and the heating device.

Description

Technical Field

[0001] The invention relates to a coating system, in particular to an automatic coating system. Background Art

[0002] Automatic coating production line is a kind of production equipment widely used in electronics, automobile, furniture and other industries, mainly used for coating the surface of products. Coating production line usually includes coating machine and heating equipment. In the process of anti-corrosion treatment of some workpieces, it is necessary to use coating machine to coat the anti-corrosion material on the surface of the workpiece, and then workers transfer the coated workpiece to the heating equipment, and manually use rakes and other tools to spread the workpiece dumped on the heating equipment. The degree of automation is not high and the processing efficiency is low. Summary of the invention

[0003] Purpose of the invention: To provide an automated coating system that can automatically perform coating, conveying, and heating and curing, thereby reducing manual involvement and having a high degree of automation.

[0004] Technical solution: The automatic coating system provided by the present invention includes a workpiece barrel, a coating and drying device, a connecting and transporting device and a heating device; the connecting and transporting device includes a translation dumping branch and a loading and unloading mechanism; the heating device includes a heating and transporting branch and a material spreading mechanism;

[0005] The coating and drying device is used to coat and dry the workpieces in the workpiece barrel; the loading end of the translational dumping branch is docked on the coating and drying device, used to drive the workpiece barrel in and out of the coating and drying device, and drive the workpiece barrel to move to the unloading end of the translational dumping branch for dumping; the spreading mechanism is docked on the unloading end of the translational dumping branch, used to receive the workpieces dumped by the translational dumping branch, and spread the workpieces on the loading end of the heating and transporting branch; the heating and transporting branch is used to transport the workpieces and heat and cure the coating layer on the workpiece; the loading and unloading mechanism is used to load the workpiece barrel to the unloading end of the translational dumping branch or remove the workpiece barrel from the unloading end of the translational dumping branch for unloading; a control box is installed on the coating and drying device; a controller is arranged in the control box; a key panel electrically connected to the controller is installed on the control box; the coating and drying device, the translational dumping branch, the loading and unloading mechanism, the heating and transporting branch and the spreading mechanism are all driven and controlled by the controller.

[0006] Furthermore, the coating and drying device includes a coating cabinet, a material barrel, a workpiece barrel, a coating and drying mechanism, a rotation limiting mechanism and a barrel lifting mechanism; a top mounting plate is horizontally fixed in the coating cabinet; the coating and drying mechanism and the rotation limiting mechanism are both mounted on the top mounting plate, the coating and drying mechanism is used to drive the workpiece barrel to rotate, and the rotation limiting mechanism is used to ensure the rotational coaxiality between the workpiece barrel and the coating and drying mechanism; the barrel lifting mechanism is installed in the coating cabinet, and is used to lift the material barrel so that the workpiece barrel enters the material barrel; an entry and exit window is provided on the coating cabinet; the loading end of the translational tilting branch extends into the entry and exit window, and is used to push the workpiece barrel to be installed on the coating and drying mechanism or to pull the workpiece barrel away from the coating and drying mechanism; the coating and drying mechanism, the rotation limiting mechanism and the barrel lifting mechanism are all driven and controlled by a controller.

[0007] Furthermore, the barrel lifting mechanism includes a lifting frame and a lifting drive unit; the lifting frame is vertically slidably installed in the coating cabinet to support the material barrel; the lifting drive unit is installed in the coating cabinet to drive the lifting frame to rise and fall, and is driven and controlled by the controller.

[0008] Furthermore, the coating spin-drying mechanism includes a spin-drying drive motor, a spin-drying drive pipe, a spin-drying cover and two parallel plates; the spin-drying drive pipe is rotatably installed on the top mounting plate, and the lower end is fixed on the spin-drying cover; the spin-drying drive motor drives the spin-drying drive pipe to rotate through a spin-drying chain transmission pair, and is electrically connected to the controller through a spin-drying drive circuit; the two parallel plates are installed in parallel on the lower side of the spin-drying cover, and are used to clamp the barrel mouth positioning ring of the workpiece barrel.

[0009] Furthermore, the rotary limit mechanism includes a limit drive motor, a limit drive tube, a limit lift tube, a limit actuator rod, a limit cover and a plurality of reset units; the limit drive tube is vertically fixed on the top mounting plate; the limit lift tube is vertically slidably sleeved on the limit drive tube; a limit drive screw rod for driving the limit lift tube to move vertically is rotatably installed on the limit drive tube; the limit drive motor drives the limit drive screw rod to rotate through a limit chain transmission pair, and is electrically connected to the controller through a limit drive circuit; a limit drive plate is fixed on the limit lift tube; An upper limit plate is fixed on the upper end of the limit actuator rod, and the limit actuator rod vertically slides through the limit drive plate and the spin drive tube; the lower end of the limit actuator rod is fixed on the upper side of the limit cover; a limit circular groove is coaxially arranged on the lower side of the spin cover, and the limit cover moves vertically in the limit circular groove, and the limit actuator rod, the spin drive tube, the limit circular groove and the limit cover are coaxial; coaxial limit blocks for simultaneously approaching the inner circumferential edge of the barrel mouth positioning ring are fixed at the four equal points of the circumferential edge of the lower side of the limit cover; the reset unit is used to drive the limit cover to move downward and reset.

[0010] Furthermore, the translational dumping branch includes a translational mechanism and a flipping and dumping mechanism; the loading end of the translational mechanism extends into the coating and drying device, and is used to receive the workpiece barrel on the coating and drying device, or to push the workpiece barrel onto the coating and drying device; the flipping and dumping mechanism is installed on the unloading end of the translational mechanism, and is used to flip the workpiece barrel for dumping; the translational mechanism and the flipping and dumping mechanism are both driven and controlled by a controller.

[0011] Furthermore, the flipping and dumping mechanism includes a flipping drive motor, a flipping drive shaft, a flipping U-shaped seat, an arc-shaped enclosure and two flipping buckle strips; the flipping U-shaped seat is rotatably mounted on the unloading end of the translation mechanism through two flipping mounting seats; the flipping drive shaft is mounted on the flipping U-shaped seat; the flipping drive motor drives the flipping drive shaft to rotate through a flipping chain transmission pair, and is electrically connected to the controller through a flipping drive circuit; two flipping buckle strips are fixed in parallel on the flipping U-shaped seat for inserting and buckling the barrel mouth positioning ring of the workpiece barrel; the arc-shaped enclosure is fixed on the flipping U-shaped seat for supporting on the circumferential side of the workpiece barrel during flipping, so that the barrel mouth of the workpiece barrel is lower than the barrel bottom.

[0012] Furthermore, the loading and unloading mechanism includes a loading and unloading base, a lifting unit, a rotating unit and a locking unit; the lifting unit is installed on the loading and unloading base; the rotating unit is installed on the lifting unit, and the lifting unit drives the rotating unit to lift and lower; the locking unit is installed on the rotating unit, and is used to release or grab the workpiece barrel, and the rotating unit drives the locking unit to rotate; the lifting unit, the rotating unit and the locking unit are all driven and controlled by the controller.

[0013] Furthermore, the heating and transporting branch includes a heating and transporting mechanism and a heating mechanism; the heating and transporting mechanism penetrates the heating mechanism to drive the workpiece through the heating mechanism; the heating mechanism is used to heat and cure the coating layer of the workpiece; the heating and transporting mechanism and the heating mechanism are both driven and controlled by a controller; the material laying mechanism is installed on the heating and transporting mechanism.

[0014] Furthermore, the material spreading mechanism includes a receiving hopper, a swing unit and a flexible swing sheet; the receiving hopper is installed on the feeding end of the heating and transporting branch; the flexible swing sheet is movably installed on the receiving hopper through a movable mounting unit, and the lower edge is used to partially block the discharge port of the receiving hopper; the swing unit is used to drive the flexible swing sheet to swing, so that the workpiece is spread flat on the feeding end of the heating and transporting branch; the swing unit is driven and controlled by a controller.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the loading and unloading mechanism is used to load the workpiece barrel onto the unloading end of the translational dumping branch, the translational dumping branch drives the workpiece barrel to enter the coating and drying device for coating and drying, after the coating and drying is completed, the translational dumping branch drives the workpiece barrel to move to the unloading end for dumping, the workpiece in the workpiece barrel falls into the spreading mechanism and is spread flat on the loading end of the heating and transporting branch, the heating and transporting branch transports the workpiece and heats and cures the coating layer on the workpiece, thereby realizing the automation of coating, conveying and heating and curing, reducing manual participation and achieving a high degree of automation; the key panel is used to facilitate the control of the coating and drying device, the connecting and transporting device and the heating device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the installation of the coating and drying device of the present invention;

[0018] Figure 3 It is a cross-sectional view of the material holding barrel of the present invention;

[0019] Figure 4 A top view of the lifting frame of the present invention;

[0020] Figure 5 It is a cross-sectional view of the coating and drying mechanism and the rotation limiting mechanism of the present invention;

[0021] Figure 6 A bottom view of the spin-drying cover of the present invention;

[0022] Figure 7 It is a structural schematic diagram of the connecting transport device of the present invention;

[0023] Figure 8 It is a structural schematic diagram of the loading and unloading mechanism of the present invention;

[0024] Fig. 9 It is a schematic diagram of the installation of the crimping unit of the present invention;

[0025] Fig.10 A top view of the flip U-shaped seat of the present invention;

[0026] Fig.11 is a top view of the locking unit of the present invention;

[0027] Fig.12 It is a structural schematic diagram of the heating device of the present invention;

[0028] Fig.13 It is a cross-sectional view of the receiving hopper of the present invention;

[0029] Fig.14 It is a schematic diagram of the installation of the movable plate of the present invention;

[0030] Fig.15 It is a structural schematic diagram of the heating and transporting mechanism of the present invention;

[0031] Fig.16 It is a schematic diagram of the circuit structure of the present invention;

[0032] In the figure: 101, coating cabinet; 102, top mounting plate; 103, lifting drive motor; 104, lifting synchronous shaft; 105, lifting upper sprocket; 106, lifting drive chain; 107, lifting lower sprocket; 108, lifting frame; 109, lifting reinforcement rod; 110, lifting guide seat; 111, lifting pulley; 112, barrel limit block; 113, lifting fixed seat; 114, material barrel; 115, push-pull handle; 116, manual valve; 117, bottom walking wheel; 118, stirring drive motor; 119, stirring shaft; 120, horizontal stirring rod; 121, stirring spoiler; 122, vertical stirring rod; 124, lifting Guide column; 125, lifting convex strip; 126, limit drive motor; 127, limit drive tube; 128, limit drive screw rod; 129, limit long hole; 130, limit lifting tube; 131, limit drive plate; 132, limit execution rod; 133, upper limit plate; 134, spin drive tube; 135, spin drive motor; 136, spin cover; 137, position detection block; 138, limit circular groove; 139, limit cover; 140, lower limit plate; 141, reset rod; 142, reset tension spring; 143, coaxial limit block; 144, parallel plate; 146, position sensor; 147, cabinet door; 148, door handle;

[0033] 201, translation support plate; 202, translation support foot; 203, flip drive shaft; 204, arc enclosure; 205, flip U-shaped seat; 206, flip buckle strip; 207, flip drive motor; 208, translation roller seat; 209, translation support roller; 210, translation slide rail; 211, translation U-shaped seat; 212, translation walking wheel; 213, translation synchronization shaft; 214, translation guide rail; 215, translation drive motor; 216, buckle drive motor; 217, buckle U-shaped seat; 218, buckle drive screw; 219, buckle internal threaded pipe; 221, translation execution plate; 222, buckle L-shaped plate; 223, buckle boss;

[0034] 301, loading and unloading base; 302, lifting drive tube; 303, lifting guide hole; 304, lifting drive screw; 305, lifting moving tube; 306, lifting drive motor; 307, rotating outer tube; 308, rotating drive motor; 309, cantilever; 310, locking connecting tube; 311, locking mounting plate; 312, locking drive motor; 313, double-headed locking screw; 314, locking moving seat; 315, locking mounting seat; 316, locking rod;

[0035] 401, receiving hopper; 402, receiving support pillar; 403, tilting plate; 404, matching baffle; 405, flexible swinging plate; 406, opening adjustment screw rod; 407, clamping positioning nut; 408, swing driving rod; 409, swing connecting rod; 410, rotating connecting rod; 411, driving disc; 412, swing driving motor; 413, movable plate; 414, movable seat; 415, movable clamping pulley; 416, movable guide rod; 417, pressing roller; 418, opening adjustment rod; 419, U-shaped limit frame;

[0036] 501, heating tunnel; 502, temperature sensor; 503, hot air blower; 504, main exhaust duct; 505, exhaust port; 506, branch exhaust duct; 507, exhaust fan; 508, transport drive motor; 509, transport strip; 510, tunnel support foot; 511, conveyor belt; 512, transport drive shaft; 513, conveyor support orifice plate;

[0037] 6. Workpiece barrel; 601. Barrel mouth positioning ring; 602. Pressing hole. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the present invention, it should be understood that the terms "left", "right", "front", "back", "up", "down", "top", "bottom", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] Embodiment 1:

[0042] like Figure 1-16 As shown, an automatic coating system provided by the present invention comprises: a workpiece barrel 6, a coating spin-drying device, a connecting and transporting device and a heating device; the connecting and transporting device comprises a translation dumping branch and a loading and unloading mechanism; the heating device comprises a heating and transporting branch and a spreading mechanism;

[0043] The coating and drying device is used to coat and dry the workpieces in the workpiece barrel 6; the loading end of the translational dumping branch is docked on the coating and drying device, used to drive the workpiece barrel 6 in and out of the coating and drying device, and drive the workpiece barrel 6 to move to the unloading end of the translational dumping branch for dumping; the spreading mechanism is docked on the unloading end of the translational dumping branch, used to receive the workpieces dumped by the translational dumping branch, and spread the workpieces on the loading end of the heating and transporting branch; the heating and transporting branch is used to transport the workpieces and heat and cure the coating layer on the workpiece; the loading and unloading mechanism is used to load the workpiece barrel 6 to the unloading end of the translational dumping branch or remove the workpiece barrel 6 from the unloading end of the translational dumping branch for unloading; a control box 7 is installed on the coating and drying device; a controller is arranged in the control box 7; a key panel 702 and a display screen 701 electrically connected to the controller are installed on the control box 7; the coating and drying device, the translational dumping branch, the loading and unloading mechanism, the heating and transporting branch and the spreading mechanism are all driven and controlled by the controller.

[0044] The loading and unloading mechanism is used to load the workpiece barrel 6 onto the unloading end of the translational dumping branch, and the translational dumping branch drives the workpiece barrel 6 into the coating and drying device for coating and drying. After the coating and drying are completed, the translational dumping branch drives the workpiece barrel 6 to move to the unloading end for dumping. The workpieces in the workpiece barrel 6 fall into the spreading mechanism and are spread flat on the loading end of the heating and transporting branch. The heating and transporting branch transports the workpieces and heats and cures the coating layer on the workpieces, thereby realizing the automation of coating, conveying and heating and curing, reducing manual participation and achieving a high degree of automation. The key panel 702 is used to facilitate the control of the coating and drying device, the connecting transport device and the heating device.

[0045] Furthermore, the coating and drying device includes a coating cabinet 101, a material holding barrel 114, a coating and drying mechanism, a rotation limiting mechanism and a barrel lifting mechanism; a maintenance window is arranged on a vertical side surface of one side of the coating cabinet 101; a cabinet door 147 for covering the maintenance window is hingedly installed on the coating cabinet 101; a door handle 148 is installed on the cabinet door; a top mounting plate 102 is horizontally fixed on the upper side of the coating cabinet 101; the coating and drying mechanism and the rotation limiting mechanism are both installed on the top mounting plate 102, the coating and drying mechanism is used to drive the workpiece barrel 6 to rotate, and the rotation limiting mechanism is used to ensure the rotational coaxiality between the workpiece barrel 6 and the coating and drying mechanism; an entry and exit window is arranged on the coating cabinet 101; the feeding end of the translational dumping branch extends into the entry and exit window, which is used to push the workpiece barrel 6 to be installed on the coating and drying mechanism or to pull the workpiece barrel 6 away from the coating and drying mechanism;

[0046] The barrel lifting mechanism is installed in the coating cabinet 101, and is used to lift the material barrel 114 so that the workpiece barrel 6 enters the material barrel 114; the material barrel 114 is used to fill the paint; a plurality of liquid outlet holes are provided on the vertical side wall and the bottom of the workpiece barrel 6;

[0047] A stirring mechanism is installed in the material barrel 114; the stirring mechanism includes a stirring drive motor 118 and a stirring shaft 119; the stirring shaft 119 is rotatably sealed and installed through the center of the bottom of the material barrel 114; the stirring drive motor 118 drives the stirring shaft 119 to rotate through the stirring belt transmission pair, and is electrically connected to the controller through the stirring drive circuit; a horizontal stirring rod 120 close to the inner wall of the lower side of the material barrel 114 is fixed on the extended end of the stirring shaft 119; vertical stirring rods 122 close to the vertical inner wall of 14 are vertically fixed on both ends of the horizontal stirring rod 120; stirring spoilers 121 are installed on the horizontal stirring rod 120 and the two vertical stirring rods 122; a liquid outlet is provided on the lower side of the material barrel 114; a manual valve 116 is connected in series to the liquid outlet; a plurality of bottom walking wheels 117 are installed on the bottom surface of the material barrel 114; and a plurality of push-pull handles 115 are provided on the upper side of the material barrel 114.

[0048] The rotation limiting mechanism is used to ensure the rotation coaxiality between the workpiece barrel 6 and the coating and drying mechanism, and the vibration of the workpiece barrel 6 on the coating cabinet 101 caused by the center of gravity offset during high-speed rotation is reduced, so that the coating and drying mechanism can drive the workpiece barrel 6 to rotate rapidly, and the barrel lifting mechanism drives the material barrel 114 to move up and down, so that the workpiece barrel 6 on the coating and drying mechanism enters and exits the material barrel 114, and the workpiece in the workpiece barrel 6 is immersed in the paint. After a period of time, the barrel moves down slightly, so that the bottom of the workpiece barrel 6 is higher than the liquid level of the paint in the material barrel 114, and the coating and drying mechanism rotates rapidly for a period of time, so that the excess paint on the workpiece is thrown back into the material barrel 114, thereby reducing the waste of paint;

[0049] The stirring drive motor 118 is used to drive the stirring shaft 119 to rotate, so that the horizontal stirring rod 120, the vertical stirring rod 122 and the stirring spoiler 121 stir the coating in the material tank 114 to prevent precipitation at the bottom from affecting the coating effect;

[0050] The bottom running wheels 117 and the push-pull handle 115 make the material holding bucket 114 easy to move, so as to add or replace the paint.

[0051] Furthermore, the barrel lifting mechanism includes a lifting frame 108 and a lifting drive unit; the lifting frame 108 is horizontally arranged, and a plurality of lifting reinforcement rods 109 are connected and fixed in the lifting frame 108; the bottom of the material barrel 114 is supported on the lifting frame 108 and each lifting reinforcement rod 109; a plurality of barrel limit blocks 112 are arranged on the upper side of the lifting frame 108 and each lifting reinforcement rod 109, and each barrel limit block 112 is close to the vertical side of the material barrel 114; on the two opposite vertical inner walls of the coating cabinet 101 A lifting guide column 124 is provided on each of the two opposite vertical side walls of the lifting guide column 124; a lifting convex strip 125 is provided on each of the two opposite vertical side walls of the lifting guide column 124; a lifting guide seat 110 is fixed on each of the two opposite edges of the lifting frame 108; two lifting pulleys 111 are rotatably mounted on the lifting guide seat 110; the lifting pulleys 111 on the lifting guide seats 110 on both sides are respectively buckled on the lifting convex strips 125 on the lifting guide columns 124 on both sides, and the lifting pulley 111 on the same lifting guide seat 110 clamps the corresponding lifting guide column 124;

[0052] The lifting drive unit includes a lifting drive motor 103 and a lifting synchronization shaft 104; the lifting synchronization shaft 104 is rotatably installed horizontally on the top mounting plate 102; the lifting drive motor 103 drives the lifting synchronization shaft 104 to rotate through the lifting worm gear transmission pair, and is electrically connected to the controller through the lifting drive circuit; lifting upper sprockets 105 are installed on both ends of the lifting synchronization shaft 104; two lifting lower sprockets 107 corresponding to the positions of the two lifting upper sprockets 105 are rotatably installed on the inner bottom surface of the coating cabinet 101; the lifting drive chain 106 is transmission-connected to the corresponding lifting upper sprocket 105 and the lifting lower sprocket 107; and lifting fixing seats 113 respectively fixed on the lifting drive chain 106 are installed on the two edges of the lifting guide seat 110 installed on the lifting frame 108.

[0053] The barrel limit block 112 is used to position the material barrel 114; the cooperation between the lifting guide column 124, the lifting convex strip 125 and the lifting pulley 111 can realize the vertical sliding installation of the lifting frame 108 with less friction, and at the same time ensure the horizontality of the lifting frame 108; the lifting drive motor 103 is used to drive the lifting synchronization shaft 104 to rotate, so that the two lifting upper sprockets 105 are driven; the two lifting drive chains 106 are driven to operate synchronously, so that the two lifting fixed seats 113 drive the two sides of the lifting frame 108 to rise and fall synchronously, thereby realizing the lifting and lowering adjustment of the material barrel 114.

[0054] Furthermore, the coating spin-drying mechanism includes a spin-drying drive motor 135, a spin-drying drive tube 134, a spin-drying cover 136 and two parallel plates 144; the spin-drying drive tube 134 is vertically through-type rotatably mounted on the top mounting plate 102, and the lower end is fixed at the center of the upper side of the spin-drying cover 136; the spin-drying drive motor 135 drives the spin-drying drive tube 134 to rotate through a spin-drying chain transmission pair, and is electrically connected to the controller through a spin-drying drive circuit; the two parallel plates 144 are parallelly mounted on the lower side of the spin-drying cover 136, and the lower edges of the two parallel plates 144 are relatively horizontally bent to form a driving eaves; the workpiece barrel 6 is coaxially fixed at the upper barrel opening There is a barrel mouth positioning ring 601; parallel edges parallel to each other are arranged on both sides of the outer circumferential edge of the barrel mouth positioning ring 601; the two parallel edges of the barrel mouth positioning ring 601 are respectively used for snap-fitting and supporting on two driving ridges; a position detection block 137 is arranged on the barrel mouth positioning ring 601; a position sensor 146 for detecting the position detection block 137 is installed on the inner wall of the coating cabinet 101, and the position sensor is electrically connected to the controller; when the two parallel edges of the barrel mouth positioning ring 601 are snap-fitting and supported on the two driving ridges, and the position sensor 146 detects the position detection block 137, the translational dumping branch can pull out the workpiece barrel.

[0055] The spin-drying drive motor 135 is used to drive the spin-drying drive tube 134 to rotate, so that the spin-drying cover 136 and the two parallel plates 144 drive the workpiece barrel 6 to rotate synchronously, thereby realizing workpiece spinning; by utilizing the cooperation between the driving eaves and the parallel edges, the spin-drying cover 136 can drive the workpiece barrel 6 to rotate synchronously.

[0056] Furthermore, the rotation limit mechanism includes a limit drive motor 126, a limit drive tube 127, a limit drive screw 128, a limit lift tube 130, a limit execution rod 132, a limit cover 139 and a plurality of reset units; the limit drive tube 127 is vertically fixed on the top mounting plate 102; the limit lift tube 130 is vertically slidably sleeved on the limit drive tube 127; a limit drive block with a limit long hole 129 penetrating the limit long hole 129 is provided on the limit drive tube 127, and the limit drive block is fixed on the inner wall of the limit lift tube 130; the limit drive screw 128 is rotationally installed vertically in the limit drive tube 127, and the threaded screw penetrates the limit drive block; the limit drive motor 126 drives the limit drive screw 128 to rotate through the limit chain transmission pair, and through the limit The position driving circuit is electrically connected to the controller; a limit driving plate 131 is fixed on the limit lifting tube 130; an upper limit plate 133 is fixed on the upper end of the limit execution rod 132, the limit execution rod 132 vertically slides through the limit driving plate 131 and the spin-drying drive tube 134, and the limit execution rod 132 is coaxial with the spin-drying drive tube 134; the lower end of the limit execution rod 132 is fixed at the center of the upper side surface of the limit cover 139; a limit circular groove 138 is coaxially arranged on the lower side surface of the spin-drying cover 136, and the limit cover 139 moves vertically in the limit circular groove 138; coaxial limit blocks 143 are fixed at the four equal points of the circumferential edge of the lower side surface of the limit cover 139, and when the limit cover 139 moves downward, the four coaxial limit blocks 143 are close to the inner circumferential edge of the barrel mouth positioning ring 601;

[0057] The reset unit includes a reset rod 141 and a reset spring 142; the lower end of the reset rod 141 is fixed on the upper side of the limit cover 139, and the upper end passes through the spin cover 136; a lower limit plate 140 is fixed on the upper through end of the spin cover 136; the reset spring 142 is sleeved on the reset rod 141, and is elastically connected between the upper side of the spin cover 136 and the lower limit plate 140.

[0058] The limit drive motor 126 is used to drive the limit drive screw 128 to rotate, and the limit drive block drives the limit lifting tube 130 to rise and fall. When the limit lifting tube 130 moves up, the limit drive plate 131 drives the limit execution rod 132 and the limit cover 139 to move up and enter the limit circular groove 138 through the upper limit plate 133, and the coaxial limit block 143 disengages from the workpiece barrel 6. When the limit lifting tube 130 moves down, the reset spring 142 drives the reset rod 141 to drive the limit cover 139 to move down and reset, so that the upper limit plate 133 is always pressed on the limit drive plate 131, so that the four coaxial limit blocks 143 can limit the workpiece barrel 6.

[0059] Furthermore, the translation and dumping branch includes a translation mechanism and a flip and dumping mechanism; the translation mechanism includes a translation execution plate 221, a translation drive unit, a buckling unit and two translation support plates 201; the translation drive unit includes a translation drive motor 215 and a translation synchronization shaft 213; a plurality of translation legs 202 are arranged on the lower side surfaces of the two translation support plates 201, and the two translation support plates 201 are parallel to each other; the loading ends of the two translation support plates 201 extend into the coating cabinet 101 through the access window for receiving the coating The workpiece barrel 6 on the coating and drying mechanism is turned over, or the workpiece barrel 6 is pushed onto the coating and drying mechanism; the flipping and dumping mechanism is installed on the unloading end of the two translation support plates 201; translation slide rails 210 are arranged along the length direction on the upper side surfaces of the two translation support plates 201; translation U-shaped seats 211 are arranged on both ends of the lower side surface of the translation execution plate 221; a plurality of translation running wheels 212 are rotatably installed in the translation U-shaped seat 211; the translation running wheels 212 of the two translation U-shaped seats 211 respectively travel on the two translation slide rails 210;

[0060] A translation guide rail 214 is installed along the length direction on the upper side of the two translation support plates 201; the translation synchronization shaft 213 is rotatably installed on the translation execution plate 221, and the two ends are respectively driven and moved on the two translation guide rails 214 through a translation gear rack pair; the translation drive motor 215 drives the translation synchronization shaft 213 to rotate through the translation gear transmission pair, and is electrically connected to the controller through the translation drive circuit;

[0061] A translation roller seat 208 is fixed on the opposite edges of the upper side of the two translation support plates 201; a plurality of translation support rollers 209 for supporting the barrel opening positioning ring 601 are rotatably installed at intervals on the opposite sides of the two translation roller seats 208;

[0062] The crimping unit includes a crimping drive motor 216, a crimping U-shaped seat 217, a crimping drive screw 218, a crimping internal threaded tube 219 and a crimping L-shaped plate 222; a cantilevered plate is fixed in a cantilevered manner in the middle of the upper side of the translational execution plate 221; the crimping U-shaped seat 217 is fixed on the cantilevered plate; the upper end of the crimping drive screw 218 is rotatably mounted on the crimping U-shaped seat 217, and the lower end is threadedly screwed on the crimping internal threaded tube 219; the crimping drive motor 216 is used to drive the crimping drive screw 218 to rotate, and is electrically connected to the controller through the crimping drive circuit; the crimping internal threaded tube 219 vertically slides through the translational execution plate 221, and the lower end is fixed on the horizontal plate of the crimping L-shaped plate 222; a crimping boss 223 is arranged on the lower side of the horizontal plate of the crimping L-shaped plate 222; two crimping holes 602 for inserting the crimping boss 223 are arranged on the barrel mouth positioning ring 601.

[0063] By utilizing the cooperation among the translation slide rail 210, the translation U-shaped seat 211 and the translation walking wheel 212, the friction of the translation execution plate 221 is reduced, and the movement stability of the translation execution plate 221 is improved; the translation driving motor 215 is utilized to drive the translation synchronization shaft 213 to rotate, so that the translation synchronization shaft 213 moves along the two translation guide rails 214 through the translation gear rack pair, thereby driving the buckling unit and the workpiece barrel 6 to move; the buckling driving motor 216 is utilized to drive the buckling driving screw 218 to rotate, so that the buckling internal threaded tube 219 drives the buckling L-shaped plate 222 to move vertically, so that the buckling boss 223 is inserted into one of the buckling holes 602, and the vertical plate of the buckling L-shaped plate 222 is supported on the barrel mouth positioning ring 601, so that the translation driving unit can push and pull the workpiece barrel 6 when moving, thereby realizing translation drive;

[0064] Furthermore, the flipping and dumping mechanism includes a flipping drive motor 207, a flipping drive shaft 203, a flipping U-shaped seat 205, an arc-shaped enclosure 204 and two flipping buckle strips 206; flipping mounting seats are relatively fixed on the lower side surfaces of the two translation support plates 201; the two parallel seat plates of the flipping U-shaped seat 205 are rotatably mounted on the two flipping mounting seats respectively through the flipping mounting shafts; the flipping drive shaft 203 is fixed to one of the flipping mounting shafts; the flipping drive motor 207 drives the flipping drive shaft 203 to rotate through the flipping chain transmission pair, and is electrically connected to the controller through the flipping drive circuit; the two flipping buckle strips 206 are respectively fixed on the upper edges of the two parallel seat plates of the flipping U-shaped seat 205; at the relative positions of the two flip buckle strips 206 Flip buckle slots are provided on the side surfaces, and the driving eaves height of the coating and drying mechanism, the height of the buckle slots and the upper edge height of the translation support roller 209 are all the same; parallel edges parallel to each other are provided on both sides of the outer circumferential edge of the barrel mouth positioning ring 601; the two parallel edges of the barrel mouth positioning ring 601 are respectively used to be inserted and buckled on the two flip buckle slots; when the parallel edges of the barrel mouth positioning ring 601 are inserted on the flip buckle slots, the pressing boss 223 can be inserted into one of the pressing holes 602; the arc-shaped enclosure 204 is connected and fixed on the two parallel seat plates of the flip U-shaped seat 205, and is used to support the circumferential side of the workpiece barrel 6 during flipping, so that the barrel mouth of the workpiece barrel 6 is lower than the barrel bottom, and the workpiece in the workpiece barrel 6 is dumped into the paving mechanism.

[0065] The flip drive motor 207 is used to drive the flip U-shaped seat 205 to rotate a certain amplitude through the flip drive shaft 203, and the arc-shaped enclosure 204 supports the workpiece barrel 6, so that the barrel mouth of the workpiece barrel 6 is lower than the barrel bottom, and the workpiece in the workpiece barrel 6 can fall to the next process flow; the height of the buckle slot is the same as the height of the upper edge of the translation support roller 209, so that the translation mechanism can smoothly drive the workpiece barrel 6 in and out of the flipping and dumping mechanism.

[0066] Furthermore, the loading and unloading mechanism includes a loading and unloading base 301, a lifting unit, a rotating unit and a locking unit; the lifting unit includes a lifting drive motor 306, a lifting drive tube 302, a lifting drive screw rod 304 and a lifting and moving tube 305; the lower end of the lifting drive tube 302 is fixed on the loading and unloading base 301; the lifting and moving tube 305 is vertically slidably sleeved on the lifting drive tube 302; a lifting guide hole 303 is vertically arranged on the lifting drive tube 302; a lifting and moving block is vertically slidably installed on the lifting drive tube 302, and the end thereof passes through the lifting guide hole 303 and is fixed on the inner wall of the lifting and moving tube 305; the lifting drive screw rod 304 is rotatably installed vertically in the lifting drive tube 302, and a thread is screwed through the lifting and moving block; the lifting drive motor 306 is used to drive the lifting drive screw rod 304 to rotate, and is electrically connected to the controller through the lifting drive circuit;

[0067] The rotating unit includes a rotating drive motor 308, a rotating outer tube 307 and a cantilever 309; the rotating outer tube 307 is coaxially rotatably mounted on the lifting and moving tube 305; the proximal end of the cantilever 309 is fixed on the vertical side of the rotating outer tube 307; the rotating drive motor 308 drives the rotating outer tube 307 and the lifting and moving tube 305 to rotate relative to each other through a gear ring transmission pair, and is electrically connected to the controller through a rotating drive circuit;

[0068] The locking unit includes a locking drive motor 312, a locking mounting plate 311, a double-headed locking screw 313 and two locking movable seats 314; the locking mounting plate 311 is fixed to the distal end of the cantilever 309 through a locking connecting tube 310; both ends of the double-headed locking screw 313 are rotatably mounted on the upper side surface of the locking mounting plate 311 through a locking mounting seat 315, and both sides of the double-headed locking screw 313 are respectively threaded and screwed through the two locking movable seats 314; the locking drive motor 312 drives the double-headed locking screw 313 to rotate through a locking chain transmission pair, and is electrically connected to the controller through a locking drive circuit; locking rods 316 that slide through the corresponding side locking mounting seats 315 are horizontally fixed on the locking movable seats 314; the locking rods 316 on both sides are used to extend into the workpiece barrel 6 and support the lower side surface of the barrel mouth positioning ring 601.

[0069] The lifting drive motor 306 is used to drive the lifting drive screw 304 to rotate, so that the lifting moving block drives the lifting moving tube 305 to move vertically, thereby realizing the height adjustment of the rotation of the rotating unit and the locking unit; the rotating drive motor 308 is used to drive the rotating outer tube 307 and the lifting moving tube 305 to rotate relative to each other, thereby driving the cantilever 309 to swing, thereby adjusting the horizontal position of the locking unit; the locking drive motor 312 is used to drive the double-headed locking screw 313 to rotate, so that the two locking moving seats 314 are relatively close or relatively far away, so that the locking rods 316 on the two locking moving seats 314 are close to or far away from each other, and when the locking mounting plate 311 is extended into the workpiece barrel 6, the locking rods 316 on both sides are close to each other, and after the locking mounting plate 311 is extended into the workpiece barrel 6, the locking rods 316 on both sides are far away from each other, and the ends are supported on the lower side of the barrel mouth positioning ring 601, thereby realizing the grasping or release of the workpiece barrel 6.

[0070] Furthermore, the heating transport branch includes a heating transport mechanism and a heating mechanism; the heating transport mechanism includes a transport drive motor 508, two transport strips 509 and two transport drive shafts 512; the two transport drive shafts 512 are respectively rotatably connected to the opposite ends of the two transport strips 509, and the transport strips 509 pass through the heating mechanism; two sets of transport chain transmission pairs are transmission-connected between the two transport drive shafts 512; a conveyor mesh belt 511 is connected between the transport transmission chains of the two sets of transport chain transmission pairs; A conveying support orifice plate 513 for supporting the upper side of the conveyor mesh belt 511 is connected and fixed between the upper edges; the transport drive motor 508 drives one of the transport drive shafts 512 to rotate through the transport chain transmission pair, and is connected to the controller point through the transport drive circuit; the spreading mechanism is installed on the feeding side of the two transport strips 509, and is used to receive the workpieces dumped by the overturning and dumping mechanism, and spread the workpieces on the feeding side of the conveyor mesh belt 511; the inclined plates 403 for guiding the workpieces to the conveyor mesh belt 511 are relatively installed on the feeding sides of the two transport strips 509;

[0071] The heating mechanism includes a heating tunnel 501, an exhaust fan 507, a main exhaust duct 504 and a plurality of hot air blowers 503; the heating transport mechanism runs through the heating tunnel 501; a tunnel support 510 is provided at the bottom of the heating tunnel 501; each hot air blower 503 is installed at intervals at the top of the heating tunnel 501, and is used to blow hot air into the heating tunnel 501, and a first electric control switch electrically connected to the controller is connected in series on the power supply bus line of each hot air blower 503; the exhaust fan 507 is installed in the heating tunnel 501; On the top surface of the heating tunnel 501, a second electric switch electrically connected to the controller is connected in series on the power supply line of the exhaust fan 507, and the main exhaust duct 504 is connected to the air inlet of the exhaust fan 507; a plurality of exhaust outlets 505 are arranged at the bottom of the heating tunnel 501, and each exhaust outlet 505 is connected to the main exhaust duct 504 through a branch exhaust duct 506; a temperature sensor 502 with a detection end extending into the heating tunnel 501 is installed through the heating tunnel 501, and the temperature sensor 502 is electrically connected to the controller.

[0072] The transport drive motor 508 is used to drive one of the transport drive shafts 512 to rotate, so that the two sets of transport chain transmission pairs drive the conveyor belt 511 to operate, thereby transporting the workpiece. At the same time, the transport support orifice plate 513 supports the upper side of the conveyor belt 511, which can effectively prevent the support conveyor belt 511 from sagging, and at the same time has good air permeability; the inclined plate 403 is used to prevent the workpiece from being thrown out of the heating and transporting mechanism; the hot air blower 503 is used to blow hot air to the heating and transporting mechanism in the heating tunnel 501, so that the coating layer of the workpiece on the heating and transporting mechanism is heated and cured; the exhaust port 505, the branch exhaust pipe 506, the main exhaust pipe 504 and the exhaust fan 507 are used to extract the gas in the heating tunnel 501, and the output port of the exhaust fan 507 can be connected to the gas treatment device to output the toxic and harmful gases generated during the drying process for treatment, thereby reducing the escape of harmful gases.

[0073] Furthermore, the material spreading mechanism includes a receiving hopper 401, a swing unit and a flexible swing sheet 405; the receiving hopper 401 is supported and fixed on the feeding end of the heating and transporting mechanism by a receiving support column 402, and is used to receive the workpiece dumped by the overturning and dumping mechanism; the flexible swing sheet 405 is movably installed on the receiving hopper 401 by a movable mounting unit, and the lower edge is used to partially cover the discharge port of the receiving hopper 401; a matching blocking sheet 404 is vertically fixed on the edge of the side opposite to the discharge port of the receiving hopper 401 and the flexible swing sheet 405; the swing unit is used to drive the flexible swing sheet 405 to swing, so that the workpiece is spread flat on the feeding end of the heating and transporting mechanism;

[0074] The movable installation unit includes a U-shaped limit frame 419, a movable plate 413 and two movable seats 414; a movable guide rod 416 is horizontally fixed on the receiving hopper 401; two movable clamping pulleys 415 clamping the movable guide rod 416 are rotatably installed on the movable seat 414; the two movable seats 414 are fixed on the upper edge of the movable plate 413; the U-shaped limit frame 419 is fixed on the receiving hopper 401 and is parallel to the movable guide rod 416; the lower edge of the movable plate 413 is movably extended between the U-shaped limit frame 419 and the receiving hopper 401; a plurality of pressing rollers 417 that move and press on the movable plate 413 are rotatably installed on the U-shaped limit frame 419; the upper edge of the flexible swing sheet 405 is fixed on the lower edge of the movable plate 413;

[0075] The swing unit includes a swing drive motor 412 and a drive disc 411; the swing drive motor 412 is installed on one of the material receiving pillars 402, and is electrically connected to the controller through a swing drive circuit; the drive disc 411 is coaxially installed on the output shaft of the swing drive motor 412; two swing drive rods 408 are vertically arranged on the movable plate 413; a swing connecting rod 409 is connected and fixed between the two swing drive rods 408; a rotating connecting rod 410 whose end is rotatably installed on the swing connecting rod 409 is eccentrically installed on the drive disc 411;

[0076] It also includes an opening adjustment screw rod 406; an opening adjustment tube is horizontally fixed on the lower ends of the two swing drive rods 408; the opening adjustment screw rod 406 passes through the opening adjustment tube, and two clamping positioning nuts 407 for clamping the opening adjustment tube are threadedly screwed on the opening adjustment screw rod 406; an opening adjustment rod 418 is horizontally fixed on the lower side of the flexible swing sheet 405; one end of the opening adjustment screw rod 406 is fixed on the opening adjustment rod 418.

[0077] The movable guide rod 416 is clamped by two movable clamping pulleys 415, so that the movable seat 414 can slide on the movable guide rod 416, thereby realizing the movable installation of the upper edge of the movable plate 413, and the movable installation of the lower edge of the movable plate 413 can be realized by the cooperation between the movable plate 413, the U-shaped limit frame 419 and the pressing roller 417, thereby realizing the movable installation of the flexible swinging piece 405, so that the swing unit can drive the flexible swinging piece 405 to swing; the driving disc 411 is driven to rotate by the swing driving motor 412, and the driving disc 411 drives the swing connecting rod 409 to swing through the rotating connecting rod 410, thereby driving the movable plate 413 to swing, thereby realizing the swing drive of the flexible swinging piece 405; the opening adjustment screw 406, the opening adjustment tube and the cooperation between the two clamping positioning nuts 407 can be used to adjust the position of the opening adjustment rod 418, thereby adjusting the degree of blocking of the lower edge of the flexible swinging piece 405 from the discharge port of the hopper 401 according to needs.

[0078] In the automated coating system provided by the present invention, the controller adopts the existing single-chip microcomputer control module; the lifting drive motor 103, the stirring drive motor 118, the limit drive motor 126, the spin-drying drive motor 135, the flip drive motor 207, the translation drive motor 215, the pressing drive motor 216, the lifting drive motor 306, the rotation drive motor 308, the locking drive motor 312, the swing drive motor 412 and the transport drive motor 508 all adopt the existing stepper motors, and the lifting drive circuit, the stirring drive circuit, the limit drive circuit, the spin-drying drive circuit, the flip drive circuit, the translation drive circuit, the pressing drive circuit, the lifting drive circuit, the rotation drive circuit, the locking drive circuit, the swing drive circuit and the transport drive circuit adopt the corresponding stepper motor drive circuits; the hot air blower 503 adopts the existing hot air blower; the exhaust fan 507 adopts the existing exhaust fan, and the first electric control switch and the second electric control switch both adopt the existing electric control switches; the temperature sensor 502 adopts the existing digital temperature sensor; the position sensor 146 adopts the existing position sensor; the display screen 701 adopts the existing display screen.

[0079] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. An automated coating system, characterized in that: It comprises a workpiece barrel (6), a coating and drying device, a connecting and transporting device and a heating device; the connecting and transporting device comprises a translational dumping branch and a loading and unloading mechanism; the heating device comprises a heating and transporting branch and a material spreading mechanism; The coating and drying device is used to coat and dry the workpieces in the workpiece barrel (6); the loading end of the translational dumping branch is docked on the coating and drying device, and is used to drive the workpiece barrel (6) in and out of the coating and drying device, and drive the workpiece barrel (6) to move to the unloading end of the translational dumping branch for dumping; the spreading mechanism is docked on the unloading end of the translational dumping branch, and is used to receive the workpieces dumped by the translational dumping branch, and spread the workpieces flat on the loading end of the heating and transporting branch; the heating and transporting branch is used to transport the workpieces and heat and cure them A coating layer on a workpiece; a loading and unloading mechanism for loading a workpiece barrel (6) onto a unloading end of a translational dumping branch or removing the workpiece barrel (6) from the unloading end of the translational dumping branch for unloading; a control box (7) is installed on the coating and drying device; a controller is arranged in the control box (7); a key panel (702) electrically connected to the controller is installed on the control box (7); the coating and drying device, the translational dumping branch, the loading and unloading mechanism, the heating and transporting branch and the spreading mechanism are all driven and controlled by the controller.

2. The automated coating system according to claim 1, characterized in that: The coating and drying device comprises a coating cabinet (101), a material storage barrel (114), a coating and drying mechanism, a rotation limiting mechanism and a barrel lifting mechanism; a top mounting plate (102) is horizontally fixed in the coating cabinet (101); the coating and drying mechanism and the rotation limiting mechanism are both mounted on the top mounting plate (102); the coating and drying mechanism is used to drive the workpiece barrel (6) to rotate; the rotation limiting mechanism is used to ensure the rotation coaxiality between the workpiece barrel (6) and the coating and drying mechanism; the barrel lifting mechanism is mounted in the coating cabinet (101) and is used to lift the material storage barrel (114) so ​​that the workpiece barrel (6) enters the material storage barrel (114); an entry and exit window is provided on the coating cabinet (101); the loading end of the translational tilting branch extends into the entry and exit window and is used to push the workpiece barrel (6) to be mounted on the coating and drying mechanism or to pull the workpiece barrel (6) away from the coating and drying mechanism; the coating and drying mechanism, the rotation limiting mechanism and the barrel lifting mechanism are all driven and controlled by a controller.

3. The automated coating system according to claim 2, characterized in that: The barrel lifting mechanism includes a lifting frame (108) and a lifting drive unit; the lifting frame (108) is vertically slidably installed in the coating cabinet (101) to support the material barrel (114); the lifting drive unit is installed in the coating cabinet (101) to drive the lifting frame (108) to rise and fall, and is driven and controlled by a controller.

4. The automated coating system according to claim 2, characterized in that: The coating spin-drying mechanism comprises a spin-drying driving motor (135), a spin-drying driving pipe (134), a spin-drying cover (136) and two parallel plates (144); the spin-drying driving pipe (134) is rotatably mounted on the top mounting plate (102) and the lower end is fixed on the spin-drying cover (136); the spin-drying driving motor (135) drives the spin-drying driving pipe (134) to rotate through a spin-drying chain transmission pair and is electrically connected to a controller through a spin-drying driving circuit; the two parallel plates (144) are parallelly mounted on the lower side of the spin-drying cover (136) and are used to lock the barrel mouth positioning ring (601) of the workpiece barrel (6).

5. The automated coating system according to claim 4, characterized in that: The rotary limit mechanism comprises a limit drive motor (126), a limit drive tube (127), a limit lift tube (130), a limit execution rod (132), a limit cover (139) and a plurality of reset units; the limit drive tube (127) is vertically fixed on the top mounting plate (102); the limit lift tube (130) is vertically slidably sleeved on the limit drive tube (127); a limit drive screw rod (128) for driving the limit lift tube (130) to move vertically is rotatably mounted on the limit drive tube (127); the limit drive motor (126) drives the limit drive screw rod (128) to rotate through a limit chain transmission pair, and is electrically connected to a controller through a limit drive circuit; a limit drive plate (131) is fixed on the limit lift tube (130); An upper limit plate (133) is fixed on the upper end, and a limit actuator rod (132) vertically slides through the limit driving plate (131) and the spin-drying driving tube (134); the lower end of the limit actuator rod (132) is fixed on the upper side of the limit cover (139); a limit circular groove (138) is coaxially arranged on the lower side of the spin-drying cover (136), and the limit cover (139) moves vertically in the limit circular groove (138), and the limit actuator rod (132), the spin-drying driving tube (134), the limit circular groove (138) and the limit cover (139) are coaxial; coaxial limit blocks (143) for simultaneously approaching the inner circumferential edge of the barrel mouth positioning ring (601) are fixed at the four equal points of the circumferential edge of the lower side of the limit cover (139); and the reset unit is used to drive the limit cover (139) to move downward and reset.

6. The automated coating system according to claim 1, characterized in that: The translation and dumping branch comprises a translation mechanism and a flipping and dumping mechanism; the loading end of the translation mechanism extends into the coating and drying device, and is used to receive the workpiece barrel (6) on the coating and drying device, or to push the workpiece barrel (6) onto the coating and drying device; the flipping and dumping mechanism is installed on the unloading end of the translation mechanism, and is used to flip the workpiece barrel (6) for dumping; the translation mechanism and the flipping and dumping mechanism are both driven and controlled by a controller.

7. The automated coating system according to claim 6, characterized in that: The overturning and tipping mechanism comprises an overturning drive motor (207), an overturning drive shaft (203), an overturning U-shaped seat (205), an arc-shaped enclosure (204) and two overturning buckle strips (206); the overturning U-shaped seat (205) is rotatably mounted on the unloading end of the translation mechanism via two overturning mounting seats; the overturning drive shaft (203) is mounted on the overturning U-shaped seat (205); the overturning drive motor (207) drives the overturning drive shaft (203) to rotate via an overturning chain transmission pair, and is electrically connected to a controller via an overturning drive circuit; the two overturning buckle strips (206) are fixed in parallel to the overturning U-shaped seat (205) and are used for inserting and buckling a barrel mouth positioning ring (601) of a workpiece barrel (6); the arc-shaped enclosure (204) is fixed to the overturning U-shaped seat (205) and is used for supporting the circumferential side surface of the workpiece barrel (6) during overturning, so that the barrel mouth of the workpiece barrel (6) is lower than the barrel bottom.

8. The automated coating system according to claim 1, characterized in that: The loading and unloading mechanism comprises a loading and unloading base (301), a lifting unit, a rotating unit and a locking unit; the lifting unit is mounted on the loading and unloading base (301); the rotating unit is mounted on the lifting unit, and is driven by the lifting unit to lift the rotating unit; the locking unit is mounted on the rotating unit, and is used to release or grab the workpiece barrel (6), and is driven by the rotating unit to rotate the locking unit; the lifting unit, the rotating unit and the locking unit are all driven and controlled by a controller.

9. The automated coating system according to claim 1, characterized in that: The heating and transporting branch includes a heating and transporting mechanism and a heating mechanism; the heating and transporting mechanism runs through the heating mechanism to drive the workpiece through the heating mechanism; the heating mechanism is used to heat and cure the coating layer of the workpiece; the heating and transporting mechanism and the heating mechanism are both driven and controlled by a controller; the material laying mechanism is installed on the heating and transporting mechanism.

10. The automated coating system according to claim 1, characterized in that: The material spreading mechanism comprises a material receiving hopper (401), a swing unit and a flexible swing sheet (405); the material receiving hopper (401) is installed on the feeding end of the heating and transporting branch; the flexible swing sheet (405) is movably installed on the material receiving hopper (401) through a movable mounting unit, and the lower edge is used to partially cover the discharge port of the material receiving hopper (401); the swing unit is used to drive the flexible swing sheet (405) to swing, so that the workpiece is spread flat on the feeding end of the heating and transporting branch; the swing unit is driven and controlled by a controller.

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