A kind of automatic spraying device for workpiece

Abstract

The present invention relates to the technical field of workpiece spraying, and discloses an automatic workpiece spraying device, wherein two spray paint components are fixedly installed on both sides of a processing chamber, and a plurality of groups of hanging rods are fixedly installed on the bottom of the assembly line component, and a plurality of mounting components are arranged side by side and at intervals from top to bottom on each group of hanging rods, and a plurality of hanging components are arranged at intervals on the lower side of each mounting component, and a passive unloading component is arranged on each mounting component, and each hanging component is connected to a corresponding passive unloading component, and a baking paint component is also arranged in the processing chamber, and a fixed unloading component is fixedly installed at one end of the processing chamber. When the present invention is used for spraying processing of workpieces, it not only simplifies the operation of loading materials by the staff to a certain extent and improves the convenience of use, but also maintains the stability of the workpiece during spraying to improve the uniformity of spraying, and can also automatically unload the workpiece during the conventional transportation process after spraying and baking paint are completed to reduce the labor intensity of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of workpiece spraying, and more specifically to an automatic workpiece spraying device. Background Art

[0002] Workpiece spraying refers to the spraying of paint on some metal workpieces that need surface anti-corrosion and anti-rust. As a metal workpiece commonly used in hydropower installation projects, the clamp is often in a high stress state for a long time after installation. If rust occurs, it is easy to collapse. Therefore, it needs to be sprayed during processing to extend its service life.

[0003] At present, most common clamp spraying is carried out in an assembly line manner through a spray room and a suspended assembly line. Most common suspended assembly lines use S-shaped hooks to hang the clamps on the assembly line. When loading, the staff needs to use the S-shaped hooks to hang the workpieces on the assembly line one by one. When unloading, the staff also needs to remove the S-shaped hooks one by one, and then remove the clamps one by one. The unloading operation is relatively cumbersome as a whole. At the same time, since the nozzle pressure of the spraying equipment is generally large, a high-speed airflow will be generated during spraying, and the S-shaped hook is only simply hung with the assembly line, lacking fixed limiting measures. The clamp is more likely to shake significantly under the blowing of the airflow, resulting in uneven spraying. Therefore, it is urgent to design an automatic workpiece spraying device to solve the above problems. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides an automatic workpiece spraying device to solve the problems raised in the above background technology.

[0005] The present invention provides the following technical solutions: an automatic workpiece spraying device, comprising a processing chamber, and also comprising a paint spraying component, an assembly line component, a mounting component, a hanging component, a passive unloading component, a paint baking component and a fixed unloading component, wherein two paint spraying components are fixedly mounted on both sides of the processing chamber respectively, the assembly line component is arranged above the processing chamber, and a plurality of groups of hanging rods are fixedly mounted on the bottom of the assembly line component, and a plurality of mounting components are arranged side by side and at intervals from top to bottom on each group of hanging rods, and a plurality of hanging components are arranged at intervals on the lower side of each mounting component, and a passive unloading component is arranged on each mounting component, and each hanging component is connected to the corresponding passive unloading component, and the paint baking component is also arranged in the processing chamber, and the paint spraying component and the paint baking component are arranged in sequence along the conveying direction, and the fixed unloading component is fixedly mounted at one end of the processing chamber, and the fixed unloading component pushes the passive unloading component to move and unloads the workpiece on the hanging component.

[0006] Furthermore, the paint spraying assembly includes a connecting pipe, a horizontal pipe, a feed port, a vertical pipe and a nozzle. The vertical pipe is vertically arranged, and two vertical pipes are arranged side by side and at intervals along the workpiece conveying direction. One end of the two connecting pipes extends into the processing chamber and is fixedly connected and conducted with the corresponding vertical pipes. The other ends of the two connecting pipes are connected through the horizontal pipe. The feed port is arranged in the middle of the horizontal pipe, and two nozzles are arranged at intervals along the length direction on each vertical pipe.

[0007] Furthermore, the assembly line assembly includes an I-beam and a plurality of pulley blocks, the pulley blocks are slidably installed in the I-beam, and the hanging rods are fixedly installed at the bottom of the pulley blocks.

[0008] Furthermore, the installation assembly includes strip rods, and two horizontally arranged strip rods are fixedly installed on each group of hanging rods, and the two strip rods are spaced apart from top to bottom.

[0009] Furthermore, the hanging assembly includes a rotating rod, a hanging rod, a lifting block, an insertion rod, and two insertion blocks. A plurality of mounting grooves are provided on one side of the strip rod, the rotating rod corresponds to the mounting groove one by one, the upper end of each rotating rod extends into the mounting groove and is rotatably connected to the strip rod, the hanging rod is fixedly installed on one side of the rotating rod, the outer wall of the hanging rod is provided with a hanging groove matched with the workpiece, the middle part of the hanging groove is provided with a vertical groove, the lifting block is slidably installed in the vertical groove, a slot is provided on the hanging rod, the slot is provided at one end of the hanging rod close to the rotating rod, the slot is connected with the vertical slot, the insertion rod is slidably inserted in the slot, two insertion blocks are symmetrically provided on both sides of the insertion rod, both sides of the slot are provided with inner recesses matched with the insertion blocks, an empty slot is provided on the lifting block, both sides of the empty slot are provided with oblique slots, the empty slot is matched with the insertion rod, and the oblique slot is matched with the insertion block.

[0010] Furthermore, the passive unloading assembly includes a strip plate, two sliders, and a plurality of racks. The two sliders are fixedly mounted at the two ends of the bottom of the strip plate. Two sliding grooves are opened on the top of the strip rod. The two sliders are slidably installed in the two sliding grooves respectively. A plurality of racks are fixedly mounted at the bottom of the strip plate at equal distances. The tooth block is located in a semicircular shape coaxial with the rotating shaft of the rotating rod. The hanging assembly also includes a tooth block. The tooth block is arranged on the top of the rotating rod. The rack is meshed with the tooth block. Two semicircular holes are opened on the top of the strip plate, and the semicircular holes are adapted to the hanging rod.

[0011] Furthermore, the paint baking assembly includes an insulation layer, a first heating tube, two second heating tubes, and two insulation boards. The insulation layer is fixedly installed in the processing chamber, the first heating tube is arranged on the bottom inner wall of the insulation layer, the two second heating tubes are respectively arranged on the inner walls on both sides of the insulation layer, the two insulation boards are respectively arranged at both ends of the insulation layer, and an adaptation groove is opened between the two ends of the two insulation boards.

[0012] Furthermore, the fixed unloading assembly includes four L-shaped angle irons and two fixed rods. The four L-shaped angle irons are fixedly installed at the right end of the processing chamber. The two fixed rods are respectively fixedly installed on the inner walls of two of the L-shaped angle irons. The tops of the two strip plates are provided with strip grooves, which are adapted to the fixed rods.

[0013] Furthermore, the installation assembly also includes a plurality of inclined baffles, which are respectively fixedly installed in a plurality of installation grooves. The hanging assembly also includes a connecting rod and a push plate. The connecting rod is rotatably installed on the side of the insertion rod away from the rotating rod, and the push plate is fixedly installed on one side of the connecting rod.

[0014] Technical effects and advantages of the present invention:

[0015] According to the present invention, by providing a hanging assembly, when a worker hangs a workpiece, he only needs to sleeve the workpiece onto the outer wall of the hanging rod and engage it into the hanging groove to complete the hanging. Compared with the prior art, the operation steps are reduced and the convenience of hanging the workpiece is improved.

[0016] At the same time, the hanging groove adapted to the workpiece can also block and limit the workpiece. When the workpiece is blown by high-speed airflow, the hanging groove can prevent the workpiece from shaking, thereby avoiding uneven spraying of the workpiece.

[0017] Compared with the prior art, the present invention saves the workers from the operation of removing the S-shaped hooks and workpieces one by one, thus greatly reducing the labor intensity of the workers.

[0018] Since the arched positions of the strip grooves on the upper and lower strip plates are different, the workpieces located above and below can fall down in sequence, reducing the collision between the workpieces during unloading, making the fallen workpieces more orderly and convenient for subsequent collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the paint spraying assembly of the present invention;

[0021] Figure 3 It is a schematic diagram of the assembly line structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the hanging rod area of ​​the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the installation assembly of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the hanging assembly of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the passive unloading assembly of the present invention;

[0026] Figure 8 It is a schematic diagram of the strip groove area structure of the present invention;

[0027] Fig. 9 This is a schematic diagram of the structure of the paint baking assembly of the present invention;

[0028] Fig.10 For the present invention Figure 2 A schematic diagram of the enlarged structure in the middle.

[0029] The figures are marked as follows: 1. treatment chamber; 2. painting assembly; 201. connecting pipe; 202. horizontal pipe; 203. feeding port; 204. vertical pipe; 205. nozzle; 3. assembly line assembly; 301. I-beam; 302. pulley block; 4. hanging rod; 5. mounting assembly; 501. bar; 502. mounting groove; 503. slide groove; 504. inclined baffle; 6. hanging assembly; 601. rotating rod; 602. hanging rod; 603. hanging groove; 604. vertical groove; 605. slot; 606. lifting Block; 607, plug rod; 608, plug block; 609, connecting rod; 610, push plate; 611, tooth block; 612, empty slot; 613, inclined slot; 7, passive unloading assembly; 701, strip plate; 702, slider; 703, rack; 704, semicircular hole; 705, strip slot; 8, paint assembly; 801, insulation layer; 802, first heating tube; 803, second heating tube; 804, insulation board; 805, adapter slot; 9, fixed unloading assembly; 901, L-shaped angle iron; 902, fixing rod. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still belong to the scope of protection of the present application.

[0031] Figure 1-Figure 10 The best embodiment of the present invention is shown below in conjunction with the attached Figure 1-Figure 10 The present invention is further described.

[0032] See attached Figure 1-Figure 10A workpiece automatic spraying device comprises a processing chamber 1, and also comprises a paint spraying assembly 2, an assembly line assembly 3, a mounting assembly 5, a hanging assembly 6, a passive unloading assembly 7, a paint baking assembly 8 and a fixed unloading assembly 9. Two paint spraying assemblies 2 are fixedly mounted on both sides of the processing chamber 1 respectively, and the assembly line assembly 3 is arranged above the processing chamber 1. A plurality of groups of hanging rods 4 are fixedly mounted on the bottom of the assembly line assembly 3. A plurality of mounting assemblies 5 are arranged side by side and at intervals from top to bottom on each group of hanging rods 4. A plurality of hanging assemblies 6 are arranged at intervals on the lower side of each mounting assembly 5. A passive unloading assembly 7 is arranged on each mounting assembly 5, and each hanging assembly 6 is connected to the corresponding passive unloading assembly 7. The paint baking assembly 8 is also arranged in the processing chamber 1, and the paint spraying assembly 2 and the paint baking assembly 8 are arranged in sequence along the conveying direction. The fixed unloading assembly 9 is fixedly mounted at one end of the processing chamber 1. The fixed unloading assembly 9 pushes the passive unloading assembly 7 to move and unloads the workpiece on the hanging assembly 6.

[0033] In this embodiment, two of each group of hanging rods 4 are arranged side by side and at intervals along the assembly line component 3 , the hanging rods 4 are arranged vertically, and two installation components 5 are arranged at intervals from top to bottom on each group of hanging rods 4 .

[0034] As a specific embodiment, the paint spraying assembly 2 includes a connecting pipe 201, a horizontal pipe 202, a feed port 203, a vertical pipe 204 and a nozzle 205. The vertical pipe 204 is vertically arranged, and two vertical pipes 204 are arranged side by side and at intervals along the workpiece conveying direction. One end of the two connecting pipes 201 are extended into the processing chamber 1, and are fixedly connected and conducted with the corresponding vertical pipes 204. The other ends of the two connecting pipes 201 are connected through the horizontal pipe 202. The feed port 203 is arranged in the middle of the horizontal pipe 202, and two nozzles 205 are arranged on each vertical pipe 204 at intervals along the length direction.

[0035] In the present embodiment, when the nozzle 205 is working, the sprayed paint will be atomized to form a conical mist. When four nozzles 205 with equal spacing work at the same time, the four conical mists will overlap with each other and form a uniform spraying area in front of the nozzle 205. The workpiece in this spraying area can be evenly and effectively sprayed. It should be noted that the paint spraying assembly 2 needs to be used in conjunction with an external paint box and an air pump, and the paint box and the air pump need to be connected to the feed port 203. The paint box and the air pump mentioned here are common knowledge to the staff in this field, so they are not repeated in the present embodiment.

[0036] As a specific implementation, the assembly line assembly 3 includes an I-beam 301, a plurality of pulley blocks 302, the pulley blocks 302 are slidably mounted in the I-beam 301, and the hanging rod 4 is fixedly mounted at the bottom of the pulley block 302. A conveying chain is arranged along the I-beam 301, and the conveying chain is fixedly connected to the upper end of the hanging rod 4, thereby realizing the conveying of the hanging assembly 6. It is also possible not to arrange a conveying chain, but to connect a conveying motor to each pulley block 302.

[0037] Furthermore, the I-beam 301 is in the shape of a closed circular ring, and the conveying chain is also in the shape of a circular ring, thereby realizing cyclic spraying of the workpiece.

[0038] In this embodiment, it should be noted that the distance between two adjacent pulley groups 302 is equal to the distance from the middle of the paint spraying component 2 to the middle of the paint baking component 8, so that among two adjacent groups of workpieces, one group of workpieces is being sprayed while the other group of workpieces is being baked.

[0039] As a specific implementation, the installation assembly 5 includes a strip bar 501, and two horizontally arranged strip bars 501 are fixedly installed on each group of hanging rods 4, and the two strip bars 501 are spaced apart from top to bottom.

[0040] As a specific implementation method, the hanging assembly 6 includes a rotating rod 601, a hanging rod 602, a lifting block 606, an insertion rod 607, and two insertion blocks 608. A plurality of mounting grooves 502 are provided on one side of the strip rod 501. The rotating rods 601 correspond to the mounting grooves 502 one by one. The upper ends of the rotating rods 601 are inserted into the mounting grooves 502 and are rotatably connected to the strip rods 501. The hanging rods 602 are fixedly installed on one side of the rotating rod 601. A hanging groove 603 adapted to the workpiece is provided on the outer wall of the hanging rod 602. A vertical groove 604 is provided on the inner wall of the middle part of the hanging groove 603. The lifting block 606 is slidably installed in the vertical slot 604, and a slot 605 is arranged on the hanging rod 602. The slot 605 is arranged at one end of the hanging rod 602 close to the rotating rod 601. The slot 605 is connected with the vertical slot 604. The insertion rod 607 is slidably inserted in the slot 605. Two insertion blocks 608 are symmetrically arranged on both sides of the insertion rod 607. Both sides of the slot 605 are provided with inner recesses matched with the insertion blocks 608. An empty slot 612 is opened on the lifting block 606. Both sides of the empty slot 612 are opened with oblique slots 613. The empty slot 612 is matched with the insertion rod 607, and the oblique slot 613 is matched with the insertion block 608.

[0041] In this embodiment, when hanging the workpiece, the staff only needs to connect the workpiece to the outer wall of the hanging rod 602 and engage it into the hanging groove 603. Compared with the prior art, it not only saves operating steps and improves the convenience of hanging the workpiece, but the hanging groove 603 adapted to the workpiece can also block and limit the workpiece. When the workpiece is blown by high-speed airflow, the hanging groove 603 can prevent the workpiece from shaking, thereby avoiding uneven spraying of the workpiece.

[0042] As a specific embodiment, the passive unloading component 7 includes a strip plate 701, two sliders 702, and a plurality of racks 703. The two sliders 702 are fixedly installed at the two ends of the bottom of the strip plate 701. Two slide grooves 503 are opened on the top of the strip rod 501. The two sliders 702 are slidably installed in the two slide grooves 503 respectively. A plurality of racks 703 are equidistantly fixedly installed on the bottom of the strip plate 701. The hanging component 6 also includes a tooth block 611. The tooth block 611 is arranged on the top of the rotating rod 601. The tooth block 611 is located in a semicircular shape coaxial with the rotating axis of the rotating rod 601. The rack 703 is meshed with the tooth block 611. Two semicircular holes 704 are opened on the top of the strip plate 701, and the semicircular holes 704 are adapted to the hanging rod 4.

[0043] As a specific implementation, the paint baking assembly 8 includes an insulation layer 801, a first heating tube 802, two second heating tubes 803, and two insulation boards 804. The insulation layer 801 is fixedly installed in the processing chamber 1, the first heating tube 802 is arranged on the bottom inner wall of the insulation layer 801, the two second heating tubes 803 are respectively arranged on the inner walls on both sides of the insulation layer 801, and the two insulation boards 804 are respectively arranged at both ends of the insulation layer 801. An adaptation groove 805 is opened between the two ends of the two insulation boards 804, and the adaptation groove 805 is similar to the outer contour of the installation assembly 5, the hanging assembly 6, and the passive unloading assembly 7, so as to allow the installation assembly 5, the hanging assembly 6, and the passive unloading assembly 7 to pass through.

[0044] In this embodiment, the first heating tube 802 located at the bottom and the two symmetrically arranged second heating tubes 803 can form a stable high-temperature environment in the insulation layer 801, so that the workpiece is evenly heated, and the adapter groove 805 limits the loss of heat in the insulation layer 801 to the greatest extent while ensuring the normal passage of the installation component 5, the hanging component 6, and the passive unloading component 7.

[0045] As a specific implementation, the fixed unloading assembly 9 includes four L-shaped angle irons 901 and two fixed rods 902. The four L-shaped angle irons 901 are fixedly installed at the right end of the processing chamber 1. The two fixed rods 902 are respectively fixedly installed on the inner walls of two of the L-shaped angle irons 901. The tops of the two strip plates 701 are each provided with a strip groove 705, which is adapted to the fixed rods 902.

[0046] In this embodiment, it should be noted that the strip groove 705 is a groove with an arched path, and the arched part of the strip groove 705 opened on the upper strip plate 701 is close to the right end of the strip plate 701, and the arched part of the strip groove 705 opened on the lower strip plate 701 is close to the left end of the strip plate 701.

[0047] As a specific implementation, the mounting assembly 5 also includes a plurality of inclined baffles 504, which are respectively fixedly mounted in a plurality of mounting grooves 502, and the hanging assembly 6 also includes a connecting rod 609 and a push plate 610. The connecting rod 609 is rotatably mounted on the side of the insertion rod 607 away from the rotating rod 601, and the push plate 610 is fixedly mounted on one side of the connecting rod 609.

[0048] The working process of the present invention is as follows: first, the paint box and the air pump are connected to the feed port 203, and then the workpieces are mounted one by one on the vacant hanging rods 602, and the workpieces are meshed into the hanging grooves 603. After a group of workpieces are mounted, the conveying chain drives the hanging rod 4 to slide to the right, and then drives the corresponding strip rod 501, the rotating rod 601, and the strip plate 701 to enter the processing chamber 1. After the workpieces are transported to the spraying area, the conveying chain stops, and then the air pump is started, and spraying can be performed through the nozzle 205. While waiting for spraying, the staff can mount the workpieces on a new group of hanging rods 602. After spraying is completed, the conveying chain is started for the second time to transport the sprayed workpieces to the insulation layer 801. In the middle, the conveyor chain is stopped for the second time, and then the first heating tube 802 and the two second heating tubes 803 are started, and the workpiece can be painted. While waiting for the paint, the staff can also hang the workpiece on a new set of hanging rods 602. After the paint is finished, the conveyor chain is started for the third time to continue to convey the workpiece to the right end. The two strip rods 501 and the two strip plates 701 will enter between the four L-shaped angle irons 901 respectively during this conveyance. When the strip plate 701 slides between the two L-shaped angle irons 901, the strip groove 705 will also slide from the outside of the fixed rod 902. During the sliding process, the fixed rod 902 pushes the strip plate 701 to move through the strip groove 705, thereby driving several The rack 703 slides forward, and the sliding of the rack 703 drives the meshing tooth block 611 to move, thereby driving a plurality of rotating rods 601 to rotate backward in the installation slot 502. The rotation of the rotating rod 601 will drive the insertion rod 607 and the push plate 610 to rotate synchronously. When the rotating rod 601 rotates backward to a certain angle, the push plate 610 will contact the inclined baffle 504 and be blocked by the inclined baffle 504. At this time, the rotating rod 601 continues to slide backward, and the baffle 504 will push the insertion rod 607 to slide from the slot 605 to the empty slot 612. When the insertion rod 607 enters the empty slot 612, the two insertion blocks 608 will also enter the two inclined slots 613 at the same time. During the movement, the lifting block 606 will be guided by the inclined groove 613 to slide upward, and then the workpiece engaged in the hanging groove 603 will be ejected. At this time, the hanging rod 602 is in an inclined state, and the workpiece will slide off the hanging rod 602 under the action of gravity. In addition, since the arched positions of the strip grooves 705 opened on the upper and lower strip plates 701 are different, the workpiece located at the upper side and the workpiece located at the lower side can fall down in sequence, reducing the collision between the workpieces during unloading, making the fallen workpieces more orderly and convenient for subsequent collection. Compared with the prior art, the device saves the staff from the operation of removing the S-shaped hooks and workpieces one by one, thereby greatly reducing the labor intensity of the staff.

[0049] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An automatic workpiece spraying device, comprising a processing chamber (1), characterized in that: The invention also comprises a paint spraying assembly (2), an assembly line assembly (3), an installation assembly (5), a hanging assembly (6), a passive unloading assembly (7), a paint baking assembly (8) and a fixed unloading assembly (9), wherein the two paint spraying assemblies (2) are respectively fixedly installed on both sides of the processing chamber (1), the assembly line assembly (3) is arranged above the processing chamber (1), and a plurality of groups of hanging rods (4) are fixedly installed on the bottom of the assembly line assembly (3), and a plurality of installation assemblies (5) are arranged side by side and at intervals from top to bottom on each group of hanging rods (4), and each installation assembly (5) ) are provided at intervals on the lower side of each mounting assembly (5), each mounting assembly (5) is provided with a passive unloading assembly (7), each mounting assembly (6) is connected to a corresponding passive unloading assembly (7), a paint spraying assembly (8) is also provided in the processing chamber (1), and the paint spraying assembly (2) and the paint spraying assembly (8) are arranged in sequence along the conveying direction, a fixed unloading assembly (9) is fixedly installed at one end of the processing chamber (1), the fixed unloading assembly (9) pushes the passive unloading assembly (7) to move, and enables the workpiece on the mounting assembly (6) to be unloaded; The passive unloading component (7) comprises a strip plate (701), two sliders (702), and a plurality of racks (703), wherein the two sliders (702) are fixedly mounted at the two ends of the bottom of the strip plate (701), two slide grooves (503) are provided at the top of the strip rod (501), the two sliders (702) are slidably mounted in the two slide grooves (503), a plurality of racks (703) are equidistantly fixedly mounted at the bottom of the strip plate (701), the tooth block (611) is located in a semicircular shape coaxial with the rotating shaft of the rotating rod (601), the hanging component (6) further comprises a tooth block (611), the tooth block (611) is arranged at the top of the rotating rod (601), the rack (703) is meshed with the tooth block (611), and two semicircular holes (704) are provided at the top of the strip plate (701), the semicircular holes (704) are adapted to the hanging rod (4); The fixed unloading assembly (9) comprises four L-shaped angle irons (901) and two fixed rods (902); the four L-shaped angle irons (901) are fixedly mounted on the right end of the processing chamber (1); the two fixed rods (902) are respectively fixedly mounted on the inner walls of two of the L-shaped angle irons (901); and the tops of the two strip plates (701) are provided with strip grooves (705) which are adapted to fit the fixed rods (902).

2. The automatic workpiece spraying device according to claim 1, characterized in that: The paint spraying assembly (2) comprises a connecting pipe (201), a horizontal pipe (202), a feed port (203), a vertical pipe (204) and a nozzle (205); the vertical pipe (204) is arranged vertically; two vertical pipes (204) are arranged side by side and at intervals along the workpiece conveying direction; one end of each of the two connecting pipes (201) extends into the processing chamber (1) and is fixedly connected and conducted with the corresponding vertical pipe (204); the other ends of the two connecting pipes (201) are connected via the horizontal pipe (202); the feed port (203) is arranged in the middle of the horizontal pipe (202); and two nozzles (205) are arranged at intervals along the length direction on each vertical pipe (204).

3. The automatic workpiece spraying device according to claim 1, characterized in that: The assembly line assembly (3) comprises an I-beam (301) and a plurality of pulley blocks (302). The pulley blocks (302) are slidably mounted inside the I-beam (301), and the hanging rod (4) is fixedly mounted at the bottom of the pulley blocks (302).

4. The automatic workpiece spraying device according to claim 1, characterized in that: The installation assembly (5) comprises a strip rod (501), and each group of hanging rods (4) is fixedly mounted with two horizontally arranged strip rods (501), and the two strip rods (501) are arranged at intervals from top to bottom.

5. The automatic workpiece spraying device according to claim 4, characterized in that: The hanging assembly (6) comprises a rotating rod (601), a hanging rod (602), a lifting block (606), an inserting rod (607), and two inserting blocks (608). A plurality of mounting grooves (502) are provided on one side of the strip rod (501). The rotating rods (601) correspond to the mounting grooves (502) one by one. The upper end of each rotating rod (601) extends into the mounting groove (502) and is rotatably connected to the strip rod (501). The hanging rod (602) is fixedly installed on one side of the rotating rod (601). A hanging groove (603) adapted to the workpiece is provided on the outer wall of the hanging rod (602). A vertical groove (604) is provided in the middle of the hanging groove (603). The lifting block (606) is slidably installed on the A slot (605) is provided on the hanging rod (602) in the vertical slot (604). The slot (605) is provided at one end of the hanging rod (602) close to the rotating rod (601). The slot (605) is connected to the vertical slot (604). The insertion rod (607) is slidably inserted in the slot (605). Two insertion blocks (608) are symmetrically provided on both sides of the insertion rod (607). Both sides of the slot (605) are provided with inner recesses matched with the insertion blocks (608). An empty slot (612) is provided on the lifting block (606). Both sides of the empty slot (612) are provided with oblique slots (613). The empty slot (612) is matched with the insertion rod (607), and the oblique slot (613) is matched with the insertion block (608).

6. The automatic workpiece spraying device according to claim 1, characterized in that: The paint baking assembly (8) comprises a thermal insulation layer (801), a first heating tube (802), two second heating tubes (803), and two thermal insulation plates (804); the thermal insulation layer (801) is fixedly installed in the processing chamber (1); the first heating tube (802) is arranged on the bottom inner wall of the thermal insulation layer (801); the two second heating tubes (803) are respectively arranged on the inner walls on both sides of the thermal insulation layer (801); the two thermal insulation plates (804) are respectively arranged at both ends of the thermal insulation layer (801); and an adaption groove (805) is provided between both ends of the two thermal insulation plates (804).

7. The automatic workpiece spraying device according to claim 5, characterized in that: The mounting assembly (5) further comprises a plurality of inclined baffles (504), wherein the plurality of inclined baffles (504) are respectively fixedly mounted in the plurality of mounting grooves (502). The hanging assembly (6) further comprises a connecting rod (609) and a push plate (610), wherein the connecting rod (609) is rotatably mounted on a side of the insertion rod (607) away from the rotating rod (601), and the push plate (610) is fixedly mounted on a side of the connecting rod (609).

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