Automatic spraying equipment and method for conical head round rod

Abstract

The invention discloses automatic spraying equipment and method for conical head round rods, and the equipment comprises a rod piece transferring mechanism which is used for hoisting rod pieces to a rod piece conveying chain; the rod piece conveying chain is used for conveying rod pieces to stations of the lifting mechanism in a stepping manner; the lifting mechanism is used for lifting the rod piece to the rotary clamping mechanism; the rotary clamping mechanism is connected to the truss and the transverse rod and used for rotating the clamped rod piece; and the paint spraying mechanism is arranged on the supporting beam, and the supporting beam is connected to the top of the truss and used for evenly spraying paint on the surface of the rod piece. Automatic or semi-automatic feeding of the conical head round rods can be achieved, automatic rotation and uniform paint spraying of the conical head round rods can be achieved through the rotary clamping mechanism and the paint spraying mechanism, then the conical head round rods are conveyed to the drying chamber through the rod piece conveying chain to be dried, finished rod pieces are obtained, automatic spraying and conveying of the conical head round rods are achieved, and the production efficiency is improved. Time consumed by the whole process is shortened, and production efficiency is improved.

Description

Technical Field

[0001] This invention relates to an automatic spraying equipment and method for cone-shaped round rods. Background Technology

[0002] Traditional tapered round rod painting uses a manual spraying method, where the tapered round rods are arranged closely on a trestle and then sprayed one by one by hand. This method not only takes a long time for the entire process of transporting and stacking the rods, spraying, and drying, resulting in low production efficiency, but also requires a lot of space for large projects, and the overall painting effect is low. Summary of the Invention

[0003] The purpose of this invention is to provide a technical solution for an automatic spraying device and method for conical round rods, addressing the shortcomings of existing technologies. This solution not only enables automatic or semi-automatic feeding of conical round rods, but also achieves automatic rotation and uniform painting of the rods through a rotary clamping mechanism and a paint spraying mechanism. The rods are then conveyed to a drying chamber via a rod conveyor chain for drying, resulting in finished rods. This automated spraying and conveying of conical round rods reduces overall process time and improves production efficiency. The spraying method is simple, enabling automatic intermittent loading and unloading of conical round rods and improving the uniformity of paint application on the rod surface, thus enhancing the processing quality of the conical round rods.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] Automatic spraying equipment for conical rods, characterized in that: it includes...

[0006] A rod transfer mechanism is used to hoist rods onto a rod conveyor chain;

[0007] A rod conveyor chain is used to step-transfer rods to the working position of the lifting mechanism;

[0008] A lifting mechanism is used to lift rods to a rotary clamping mechanism;

[0009] A rotary clamping mechanism is connected to the truss and the crossbar. The crossbar is horizontally positioned between the two trusses and is used to rotate the clamped member.

[0010] The paint spraying mechanism is located on the support beam, which is connected to the top of the truss, and is used to uniformly spray paint onto the surface of the members.

[0011] The above-described structure not only enables automatic or semi-automatic feeding of conical rods, but also allows for automatic rotation and uniform painting of the rods via a rotary clamping mechanism and a paint spraying mechanism. The rods are then conveyed to a drying chamber via a rod conveyor chain for drying, resulting in finished rods. This automated painting and conveying of conical rods reduces the overall process time and improves production efficiency.

[0012] Furthermore, the rod transfer mechanism includes a frame, a first frame, a second frame, a rectangular frame, a drive assembly, and a magnetic lifting device. A second track is parallel to the top surface of the frame. The first frame is slidably connected to the second track via a second slider. A second hydraulic cylinder is mounted on the frame and connected to the first frame via a second piston rod. The rectangular frame is connected to the first frame via the second frame. The drive assembly is mounted on the second frame and the rectangular frame. The magnetic lifting device is connected to the drive assembly. The frame improves the stability and reliability of the installation of the first frame, the second frame, the drive assembly, and the magnetic lifting device. The second track and the second slider improve the stability and reliability of the first frame during horizontal movement. The second hydraulic cylinder can drive the first frame to move horizontally via the second piston rod, meeting the requirements for horizontal movement of the magnetic lifting device. The second frame improves the stability of the installation of the rectangular frame and the drive assembly. The drive assembly can drive the magnetic lifting device to move up and down.

[0013] Furthermore, the drive assembly includes a third motor, a mounting base, a pulley block, and a flexible connector. The third motor is mounted on the second frame, and its output shaft is connected to a drive wheel. The mounting base is movably connected to a rectangular frame, and both the mounting base and the rectangular frame are equipped with pulley blocks. The drive wheel passes around the pulley blocks via the flexible connector and is connected to the magnetic lifting device via a U-shaped component. The third motor drives the flexible connector to move along the pulley blocks, thereby driving the magnetic lifting device to move up and down to meet the requirements for conveying the rod.

[0014] Furthermore, the rod conveyor chain includes a conveyor chain support frame, a conveyor chain, and a fourth motor. Two conveyor chain support frames are arranged parallel to each other, and the conveyor chains are respectively mounted on the conveyor chain support frames. The fourth motor is located at the bottom of one side of the conveyor chain support frame. The output shaft of the fourth motor is connected to the conveyor chain via gears, and adjacent gears are connected via transmission rods. V-shaped teeth are spaced apart on the conveyor chain. The rod conveyor chain is connected to a height adjustment mechanism, which includes a fifth hydraulic cylinder, a lifting chain connecting rod, a lifting chain swing rod, a pull rod, and a lifting chain guide post. The conveyor chain support frame is connected to a pulley seat via a housing. The pulley seat abuts against the side of the lifting chain guide post via pulleys. Adjacent lifting chain swing rods are fixedly connected by the lifting chain connecting rod. Next, the two lifting chain swing arms are connected by a tie rod, and the fifth hydraulic cylinder is connected to the lifting chain connecting rod through the fifth piston rod. The fourth motor drives the transmission rod to rotate, which in turn drives the two gears to rotate synchronously, realizing the synchronous movement of the conveyor chains on the two conveyor chain support frames. This allows the rods to move synchronously under the drive of the corresponding V-shaped teeth, meeting the conveying requirements. The fifth hydraulic cylinder can drive the lifting chain connecting rod to move through the fifth piston rod, which in turn drives the lifting chain swing arm to rotate, realizing the rotation of the entire height adjustment mechanism. This, in turn, can drive the conveyor chain support frame to move up and down along the lifting chain guide column to adjust the height position. The tie rod can ensure that the two lifting chain swing arms rotate synchronously, improving the stability and reliability during rotation.

[0015] Furthermore, the lifting mechanism includes a first base, a third hydraulic cylinder, and a support end. The third hydraulic cylinder is located on the first base and is connected to the support end via a third piston rod. The support end moves up and down via the third hydraulic cylinder and the third piston rod, thereby meeting the requirements for conveying the height of the rod.

[0016] Furthermore, the rotary clamping mechanism includes a first motor, a first hydraulic cylinder, a crossbeam, and a positioning rod. A baffle is provided on the truss, and the first hydraulic cylinder is connected to the baffle. The first hydraulic cylinder is connected to the crossbeam via a first piston rod. A first track is provided on the top surface of the crossbeam, and the crossbeam is slidably connected to the first track via a first slider. A suspension plate is provided at the bottom of one side of the crossbeam, and a support plate is provided on the truss. The positioning rod is rotatably connected to the support plate and the suspension plate, and a positioning tube horizontally passes through the suspension plate. A mounting bracket and an L-shaped plate are provided at the bottom of the other side of the crossbeam. The first motor is mounted on the L-shaped plate, and the output shaft of the first motor is connected to a rotating shaft, which horizontally passes through the mounting bracket. The first hydraulic cylinder, via the first piston rod, can drive the crossbeam on one side to slide along the first track, thereby driving the first motor and the rotating shaft to move closer to or away from the positioning rod, satisfying the requirements for clamping or releasing the rod. After clamping, the first motor drives the rotating shaft to rotate, thereby driving the rod to rotate, satisfying the requirement for continuous paint spraying on the rod and improving the uniformity of the spraying.

[0017] Furthermore, a pressure sensor is connected to the end of the rotating shaft. The pressure sensor is connected to the sleeve, and a support plug is movably connected to the sleeve. The support plug is connected to the pressure sensor through a spring. The pressure sensor can sense the force when clamping the rod. When the set clamping force threshold is reached, the rod has been clamped, and the first motor is restarted. This prevents the first motor from starting to rotate if the rod is not clamped properly, thus improving the safety and reliability during use.

[0018] Furthermore, the paint spraying mechanism includes a track beam, a horizontal moving frame, a vertical moving frame, and a spray head. Both ends of the track beam are connected to a support beam via side plates. The horizontal moving frame is connected to the track beam and is equipped with a drive motor, a first roller, and a guide rail. The output shaft of the drive motor is connected to the first roller, which is supported on the track beam. A drag chain connects the guide rail and the drive motor. A second motor is located at the top of the guide rail and is connected to the vertical moving frame via a lead screw. The vertical moving frame is connected to the guide rail via a second roller. A T-shaped block is connected to the vertical moving frame via a fixed rod. The spray head is located at the bottom of the T-shaped block. The drive motor drives the first roller to rotate, allowing the horizontal moving frame to move horizontally back and forth along the track beam to meet the paint spraying requirements of the rod. The second motor drives the lead screw to rotate, causing the vertical moving frame to move up and down along the guide rail, allowing the fixed rod and T-shaped block to move the spray head up and down synchronously, thus meeting the paint spraying requirements of the rod.

[0019] Furthermore, it also includes a rod diameter detection mechanism, which is located below the rod conveyor chain and close to the lifting mechanism. The rod diameter detection mechanism includes a second base, a fourth hydraulic cylinder, a horizontal rod, and a laser diameter measuring instrument. The fourth hydraulic cylinder is located on the second base and is connected to the horizontal rod through a fourth piston rod. The laser diameter measuring instrument is located on the top surface of the horizontal rod. The fourth hydraulic cylinder can drive the horizontal rod to move up and down through the fourth piston rod, thereby driving the laser diameter measuring instrument to move up and down, thus meeting the requirements for detecting the rod diameter.

[0020] The spraying method using the aforementioned tapered rod automatic spraying equipment is characterized by comprising the following steps:

[0021] S1. The rods in the transfer box are transferred to the V-shaped teeth of the conveyor chain by the rod transfer mechanism. The central processing unit is electrically connected to the rod conveyor chain and controls the conveyor chain on the rod conveyor chain to move forward step by step.

[0022] S2. When the rod is transported to the rod diameter detection mechanism station, the laser diameter measuring instrument is lifted upward to measure the diameter of the rod and transmits the signal to the central processing unit. The central processing unit analyzes the rod diameter obtained by photoelectric signal parsing and sends a signal to the lifting mechanism to instruct the lifting mechanism to rise to a height of H.

[0023] S3. The rod continues to step forward to the lifting mechanism, which lifts the rod up to a height of H to ensure that the end of the rotary clamping mechanism can be inserted into the conical rod.

[0024] S4. Next, the support plug with pressure sensor is inserted into the end hole of the conical rod. The lifting mechanism descends and resets. When the pressure sensor is compressed and reaches the preset pressure value, the clamping of the conical rod stops. The first motor starts and drives the conical rod to rotate at a predetermined speed.

[0025] S5. The paint spraying mechanism moves from one end of the rod to the other along a predetermined trajectory to spray paint evenly.

[0026] S6. After the paint spraying is completed, the lifting mechanism rises to a height H and comes into contact with the conical rod. The rotating clamping mechanism is released and disengaged from the end of the conical rod. The lifting mechanism is reset and the painted rod is placed in the V-shaped teeth of the conveyor chain. The central processing unit instructs the fourth motor of the rod conveyor chain to work and continue to step forward to convey the rod into the drying room.

[0027] S7. The drying time is determined based on the drying time of 120μm thick paint in the laboratory, preferably 30min. When the cone-shaped round rod is output from the drying room, the finished cone-shaped round rod is obtained. The finished cone-shaped round rod is then placed into the transfer box using a rod transfer mechanism.

[0028] This spraying method has simple steps and can not only realize the automatic interval loading and unloading of conical round rods, but also improve the uniformity of paint spraying on the surface of the conical round rods and improve the processing quality of the conical round rods.

[0029] The present invention, by adopting the above-described technical solution, has the following beneficial effects:

[0030] 1. This invention can not only realize automatic or semi-automatic feeding of conical round rods, but also realize automatic rotation and uniform painting of conical round rods through a rotary clamping mechanism and a paint spraying mechanism. Then, the rods are conveyed to the drying chamber through a rod conveyor chain for drying treatment to obtain finished rods. This realizes automated painting and conveying of conical round rods, reduces the time consumed by the entire process, and improves production efficiency.

[0031] 2. The frame can improve the stability and reliability of the installation of the first frame, the second frame, the drive assembly, and the magnetic lifting device. The second track and the second slider improve the stability and reliability of the first frame when moving horizontally. The second hydraulic cylinder can drive the first frame to move horizontally through the second piston rod to meet the requirements of the magnetic lifting device's horizontal movement. The second frame improves the stability of the rectangular frame and the drive assembly, and the drive assembly can drive the magnetic lifting device to move up and down.

[0032] 3. The fourth motor drives the transmission rod to rotate, which in turn drives the two gears to rotate synchronously, realizing the synchronous movement of the conveyor chains on the two conveyor chain support frames. This allows the rods to move synchronously under the drive of the corresponding V-shaped teeth, meeting the conveying requirements. The fifth hydraulic cylinder can drive the lifting chain connecting rod to move through the fifth piston rod, which in turn drives the lifting chain swing arm to rotate, realizing the rotation of the entire height adjustment mechanism. This, in turn, can drive the conveyor chain support frame to move up and down along the lifting chain guide column to adjust the height position. The pull rod can ensure that the two lifting chain swing arms rotate synchronously, improving the stability and reliability during rotation.

[0033] 4. The first hydraulic cylinder and the first piston rod can drive the crossbeam on one side to slide along the first track, which in turn can drive the first motor and the rotating shaft to move closer to or away from the positioning rod, satisfying the requirements for clamping or loosening the rod. When clamped, the first motor drives the rotating shaft to rotate, which in turn can drive the rod to rotate, satisfying the requirements for continuous paint spraying on the rod and improving the uniformity of the spraying.

[0034] 5. This spraying method has simple steps, which can not only realize the automatic interval loading and unloading of conical round rods, but also improve the uniformity of paint spraying on the surface of the conical round rods and improve the processing quality of the conical round rods. Attached Figure Description

[0035] The present invention will be further described below with reference to the accompanying drawings:

[0036] Figure 1 This is a rendering of the automatic spraying equipment in the automatic spraying equipment and method for cone-shaped round rods of the present invention;

[0037] Figure 2 This is a schematic diagram showing the connection between the rotary clamping mechanism and the paint spraying mechanism in this invention;

[0038] Figure 3 for Figure 2 Schematic diagram of the structure in direction A;

[0039] Figure 4 This is a schematic diagram of the rod transfer mechanism in this invention;

[0040] Figure 5 This is a schematic diagram showing the connection between the drive component and the frame in this invention;

[0041] Figure 6 This is a schematic diagram of the lifting mechanism in this invention;

[0042] Figure 7 This is a schematic diagram of the rod diameter detection mechanism in this invention;

[0043] Figure 8 This is a schematic diagram showing the connection between the rod conveyor chain and the height adjustment mechanism in this invention;

[0044] Figure 9 This is a schematic diagram of the structure of the end of the rotating shaft in this invention;

[0045] Figure 10 This is a schematic diagram of the hoisting mechanism in this invention;

[0046] Figure 11 This is a flowchart of the spraying method in this invention;

[0047] Figure 12 This is a control block diagram for spraying in this invention;

[0048] Figure 13 This is a schematic diagram showing the stroke of the lifting mechanism and the rotary clamping mechanism in this invention.

[0049] In the diagram: 1-Rod transfer mechanism; 101-Frame; 102-First frame; 103-Second track; 104-Second slider; 105-Second hydraulic cylinder; 106-Second frame; 107-Rectangular frame; 108-Third motor; 109-Pulley block; 110-Flexible connector; 111-Mounting base; 112-U-shaped component; 113-Magnetic lifting device;

[0050] 2-Ribbon conveyor chain; 201-Conveyor chain support frame; 202-Conveyor chain; 203-Fourth motor; 204-V-shaped teeth;

[0051] 3-Lifting mechanism; 301-First base; 302-Third hydraulic cylinder; 303-Supporting end;

[0052] 4-Rotary clamping mechanism; 401-Truss; 402-Support beam; 403-Crossbar; 404-First track; 405-Crossbeam; 406-First slider; 407-First motor; 408-First hydraulic cylinder; 409-Baffle; 410-Support plate; 411-Positioning rod; 412-Suspension plate; 413-L-shaped plate; 414-Mounting bracket; 415-Rotating shaft; 415a-Sleeve; 415b-Bearing insert; 415c-Pressure sensor;

[0053] 5-Paint spraying mechanism; 501-Side plate; 502-Rail beam; 503-Horizontal moving frame; 504-Drag chain; 505-Guide rail; 506-Vertical moving frame; 507-Sprayer head; 508-Second motor; 509-Screw rod; 510-Fixing rod; 511-T-block;

[0054] 6- Rod diameter detection mechanism; 601- Second base; 602- Fourth hydraulic cylinder; 603- Horizontal rod; 604- Laser diameter measuring instrument;

[0055] 7-Height adjustment mechanism; 701-Lifting chain guide column; 702-Fifth hydraulic cylinder; 703-Lifting chain swing arm; 704-Lifting chain connecting rod; 705-Pull rod; 706-Pulley seat;

[0056] 8-Lifting mechanism; 801-Lifting block; 802-Rope; 803-Third track; 804-Boom;

[0057] 9-Transfer box. Detailed Implementation

[0058] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0059] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0060] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0061] like Figures 1 to 9 The diagram shows the automatic coating equipment for conical round rods according to the present invention, comprising a rod transfer mechanism 1, a rod conveying chain 2, a lifting mechanism 3, a rotating clamping mechanism 4, and a paint spraying mechanism 5. In this application, "rod" refers to a conical round rod.

[0062] The rod transfer mechanism 1 is used to hoist the rods onto the rod conveyor chain 2.

[0063] The rod transfer mechanism 1 includes a frame 101, a first frame 102, a second frame 106, a rectangular frame 107, a drive assembly, and a magnetic lifting device 113. A second track 103 is parallel to the top surface of the frame 101. The first frame 102 is slidably connected to the second track 103 via a second slider 104. A second hydraulic cylinder 105 is mounted on the frame 101 and connected to the first frame 102 via a second piston rod. The rectangular frame 107 is connected to the first frame 102 via the second frame 106. The drive assembly is mounted on the second frame 106 and the rectangular frame 107. The magnetic lifting device 113... The first frame 102, the second frame 106, the drive assembly, and the magnetic lifting device 113 are connected to the drive assembly. The frame 101 can improve the stability and reliability of the installation of the first frame 102, the second frame 106, the drive assembly, and the magnetic lifting device 113. The second track 103 and the second slider 104 improve the stability and reliability of the first frame 102 when it moves horizontally. The second hydraulic cylinder 105 can drive the first frame 102 to move horizontally through the second piston rod to meet the requirements of the horizontal movement of the magnetic lifting device 113. The second frame 106 improves the stability of the installation of the rectangular frame 107 and the drive assembly. The drive assembly can drive the magnetic lifting device 113 to move up and down.

[0064] The drive assembly includes a third motor 108, a mounting base 111, a pulley block 109, and a flexible connector 110. The third motor 108 is mounted on the second frame 106, and the output shaft of the third motor 108 is connected to a drive wheel. The mounting base 111 is movably connected to a rectangular frame 107. Both the mounting base 111 and the rectangular frame 107 are equipped with pulley blocks 109. The drive wheel passes around the pulley blocks 109 via the flexible connector 110 and is connected to the magnetic lifting device 113 via a U-shaped part 112. The third motor 108 drives the flexible connector 110 to move along the pulley blocks 109, thereby driving the magnetic lifting device 113 to move up and down to meet the requirements for conveying the rod.

[0065] The rod conveyor chain 2 is used to step-transfer rods to the workstation of the lifting mechanism 3.

[0066] The rod conveyor chain 2 includes a conveyor chain 202 support frame 201, a conveyor chain 202, and a fourth motor 203. Two conveyor chain 202 support frames 201 are arranged parallel to each other. The conveyor chains 202 are respectively mounted on the conveyor chain 202 support frames 201. The fourth motor 203 is located at the bottom of one side of the conveyor chain 202 support frame 201. The output shaft of the fourth motor 203 is connected to the conveyor chain 202 via gears. Adjacent gears are connected via transmission rods. V-shaped teeth 204 are spaced apart on the conveyor chain 202. The rod conveyor chain 2 is connected to a height adjustment mechanism 7. The height adjustment mechanism 7 includes a fifth hydraulic cylinder 702, a lifting chain connecting rod 704, a lifting chain swing rod 703, a pull rod 705, and a lifting chain guide post 701. The conveyor chain 202 support frame 201 is connected to a pulley seat 706 via a housing. The pulley seat 706 abuts against the side of the lifting chain guide post 701 via pulleys. Adjacent lifting chain swing rods 703... The two lifting chain swing arms 703 are fixedly connected by a lifting chain link 704, and connected by a tie rod 705. The fifth hydraulic cylinder 702 is connected to the lifting chain link 704 via a fifth piston rod. The fourth motor 203 drives the transmission rod to rotate, which in turn drives the two gears to rotate synchronously, so that the conveyor chains 202 on the two conveyor chain 202 support frames 201 move synchronously. This allows the rods to move synchronously under the drive of the corresponding V-shaped teeth 204, meeting the conveying requirements. The fifth hydraulic cylinder 702 can drive the lifting chain link 704 to move via the fifth piston rod, which in turn drives the lifting chain swing arm 703 to rotate, realizing the rotation of the entire height adjustment mechanism 7. This, in turn, can drive the conveyor chain 202 support frame 201 to move up and down along the lifting chain guide column 701 to adjust the height position. The tie rod 705 can ensure that the two lifting chain swing arms 703 rotate synchronously, improving the stability and reliability during rotation.

[0067] The lifting mechanism 3 is used to lift the rod to the rotating clamping mechanism 4.

[0068] The lifting mechanism 3 includes a first base 301, a third hydraulic cylinder 302, and a support end 303. The third hydraulic cylinder 302 is mounted on the first base 301 and is connected to the support end 303 via a third piston rod. The support end 303 is moved up and down by the third hydraulic cylinder 302 and the third piston rod, thereby meeting the requirements for conveying the height of the rod.

[0069] The rotating clamping mechanism 4 is connected to the truss 401 and the crossbar 403. The crossbar 403 is horizontally positioned between the two trusses 401 and is used to rotate the clamped rod.

[0070] The rotary clamping mechanism 4 includes a first motor 407, a first hydraulic cylinder 408, a crossbeam 405, and a positioning rod 411. A baffle 409 is provided on the truss 401. The first hydraulic cylinder 408 is connected to the baffle 409 and to the crossbeam 405 via a first piston rod. A first track 404 is provided on the top surface of the crossbeam 403. The crossbeam 405 is slidably connected to the first track 404 via a first slider 406. A suspension plate 412 is provided at the bottom of one side of the crossbeam 405. A support plate 410 is provided on the truss 401. The positioning rod 411 is rotatably connected to the support plate 410 and the suspension plate 412. A positioning tube horizontally passes through the suspension plate 412. The other side of the crossbeam 405... 5. The bottom is provided with a mounting bracket 414 and an L-shaped plate 413. The first motor 407 is mounted on the L-shaped plate 413. The output shaft of the first motor 407 is connected to a rotating shaft 415, which horizontally passes through the mounting bracket 414. The first hydraulic cylinder 408 can drive the crossbeam 405 on one side to slide along the first track 404 via the first piston rod. This can drive the first motor 407 and the rotating shaft 415 to move closer to or away from the positioning rod 411, thus meeting the requirements for clamping or loosening the rod. When clamped, the first motor 407 drives the rotating shaft 415 to rotate, which in turn drives the rod to rotate, thus meeting the requirements for continuous paint spraying on the rod and improving the uniformity of the spraying.

[0071] A pressure sensor 415c is connected to the end of the rotating shaft 415. The pressure sensor 415c is connected to the sleeve 415a. A support plug 415b is movably connected to the sleeve 415a. The support plug 415b is connected to the pressure sensor 415c through a spring. The pressure sensor 415c can sense the force when clamping the rod. When the set clamping force threshold is reached, the rod has been clamped, and the first motor 407 is restarted. This prevents the first motor 407 from starting to rotate if the rod is not clamped properly, thus improving the safety and reliability during use.

[0072] The paint spraying mechanism 5 is mounted on the support beam 402, which is connected to the top of the truss 401, and is used to uniformly spray paint onto the surface of the members.

[0073] The paint spraying mechanism 5 includes a track beam 502, a horizontal moving frame 503, a vertical moving frame 506, and a spray head 507. Both ends of the track beam 502 are connected to the support beam 402 via side plates 501. The horizontal moving frame 503 is connected to the track beam 502 and is equipped with a drive motor, a first roller, and a guide rail 505. The output shaft of the drive motor is connected to the first roller, which is supported on the track beam 502. A drag chain 504 is provided between the guide rail 505 and the drive motor. A second motor 508 is located at the top of the guide rail 505 and is connected to the vertical moving frame 506 via a lead screw 509. The vertical moving frame 506 is connected to the guide rail 505 via a second roller. The vertical moving frame 506 is connected to a T-shaped block 511 via a fixed rod 510. The paint spray head 507 is located at the bottom of the T-shaped block 511. The first roller is driven to rotate by a drive motor, which allows the horizontal moving frame 503 to move back and forth horizontally along the track beam 502 to meet the requirements for painting the rod. The lead screw 509 is driven to rotate by a second motor 508, which in turn drives the vertical moving frame 506 to move up and down along the guide rail 505. This causes the fixed rod 510 and the T-shaped block 511 to drive the paint spray head 507 to move up and down synchronously, thus meeting the requirements for painting the rod.

[0074] It also includes a rod diameter detection mechanism 6, which is located below the rod conveyor chain 2 and close to the lifting mechanism 3. The rod diameter detection mechanism 6 includes a second base 601, a fourth hydraulic cylinder 602, a horizontal rod 603, and a laser diameter measuring instrument 604. The fourth hydraulic cylinder 602 is located on the second base 601 and is connected to the horizontal rod 603 through a fourth piston rod. The laser diameter measuring instrument 604 is located on the top surface of the horizontal rod 603. The fourth hydraulic cylinder 602 can drive the horizontal rod 603 to move up and down through the fourth piston rod, thereby driving the laser diameter measuring instrument 604 to move up and down, thus meeting the requirements for detecting the rod diameter.

[0075] Through the design of the above structure, not only can the automatic or semi-automatic feeding of the conical round rod be realized, but the automatic rotation and uniform painting of the conical round rod can also be realized through the rotary clamping mechanism 4 and the paint spraying mechanism 5. Then, the rod is conveyed to the drying chamber through the rod conveyor chain 2 for drying treatment to obtain the finished rod. This realizes the automated painting and conveying of the conical round rod, reduces the time consumed by the entire process, and improves production efficiency.

[0076] like Figure 10As shown, it also includes a hoisting mechanism 8, which includes a lifting block 801, ropes 802, a third track 803, and booms 804. The lifting block 801 is connected to both ends of the third track 803 via ropes 802, and the two booms 804 are movably connected to the third track 803. The hoisting mechanism is another type of rod transfer structure, which is manual, with two workers distributed at the booms. Compared with rod transfer mechanisms, it is suitable for transferring heavier rods and can accommodate rods of different lengths. In use, the boom is moved to the end of the rod, the socket section is inserted into the rod, and an overhead crane is used to move the hoisting device onto the rod conveyor chain.

[0077] like Figures 11 to 13 As shown, the spraying method using the aforementioned tapered rod automatic spraying equipment includes the following steps:

[0078] S1. The rods in the transfer box 9 are transferred to the V-shaped teeth 204 of the conveyor chain 202 by the rod transfer mechanism 1. The central processing unit is electrically connected to the rod conveyor chain 2 and controls the conveyor chain 202 on the rod conveyor chain 2 to move forward step by step.

[0079] S2. When the rod is transported to the rod diameter detection mechanism 6 station, the laser diameter measuring instrument 604 is lifted upward to measure the diameter of the rod and transmits the signal to the central processing unit. The central processing unit analyzes the rod diameter obtained by photoelectric signal parsing and sends a signal to the lifting mechanism 3 to instruct the lifting mechanism 3 to rise to a height of H.

[0080] The length of the rods ranges from 0.8 to 5.8 m.

[0081] S3. The rod continues to step forward to the lifting mechanism 3. The lifting mechanism 3 lifts the rod up to a height of H to ensure that the end of the rotating clamping mechanism 4 can be inserted into the conical rod.

[0082] S4. Next, the support plug 415b with pressure sensor 415c is inserted into the end hole of the conical rod. The lifting mechanism 3 descends and resets. When the pressure sensor 415c is compressed and reaches the preset pressure value, it stops clamping the conical rod. The first motor 407 starts and drives the conical rod to rotate at a predetermined speed.

[0083] S5, the paint spraying mechanism 5 moves from one end of the rod to the other along a predetermined trajectory to spray paint evenly;

[0084] S6. After the paint spraying is completed, the lifting mechanism 3 rises to a height H and comes into contact with the conical rod. The rotating clamping mechanism 4 is released and disengaged from the end of the conical rod. The lifting mechanism 3 is reset and the painted rod is placed in the V-shaped teeth 204 of the conveyor chain 202. The central processing unit instructs the fourth motor 203 of the rod conveyor chain 2 to work and continue to move forward to convey the rod into the drying room.

[0085] The length of the drying chamber is L: L (length of drying chamber) = (T (drying time) / t (interval time of V-shaped teeth 204)) * s (spacing of V-shaped teeth 204).

[0086] The lifting height of the lifting mechanism 3 and the diameter of the rod satisfy the following formula:

[0087] D = HSd / 2.

[0088] S7. The drying time is determined according to the drying time of 120μm thick paint in the laboratory, preferably 30min. When the cone-shaped round rod is output from the drying room, the finished cone-shaped round rod is obtained. The finished cone-shaped round rod is placed into the transfer box 9 by the rod transfer mechanism 1.

[0089] This spraying method has simple steps and can not only realize the automatic interval loading and unloading of conical round rods, but also improve the uniformity of paint spraying on the surface of the conical round rods and improve the processing quality of the conical round rods.

[0090] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to achieve substantially the same technical effect are all covered within the protection scope of the present invention.

Claims

1. An automatic spraying equipment for conical head round rods, characterized in that: include A rod transfer mechanism is used to hoist rods onto a rod conveyor chain; A rod conveyor chain is used to step-transport the rod to the working position of the lifting mechanism; A lifting mechanism is used to lift the rod to the rotary clamping mechanism; A rotary clamping mechanism is connected to a truss and a crossbar, the crossbar being horizontally positioned between two trusses for rotating the clamped member; A paint spraying mechanism is provided, which is mounted on a support beam connected to the top of the truss, and is used to uniformly spray paint onto the surface of the members.

2. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: The rod transfer mechanism includes a frame, a first frame, a second frame, a rectangular frame, a drive assembly, and a magnetic lifting device. A second track is arranged parallel to the top surface of the frame. The first frame is slidably connected to the second track via a second slider. A second hydraulic cylinder is provided on the frame and is connected to the first frame via a second piston rod. The rectangular frame is connected to the first frame via the second frame. The drive assembly is located on the second frame and the rectangular frame, and the magnetic lifting device is connected to the drive assembly.

3. The automatic spraying equipment for conical round rods according to claim 2, characterized in that: The drive assembly includes a third motor, a mounting base, a pulley block, and a flexible connector. The third motor is mounted on the second frame, and the output shaft of the third motor is connected to a drive wheel. The mounting base is movably connected to the rectangular frame. Both the mounting base and the rectangular frame are provided with pulley blocks. The drive wheel passes through the pulley blocks via the flexible connector and is connected to the magnetic lifting device via a U-shaped component.

4. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: The rod conveyor chain includes a conveyor chain support frame, a conveyor chain, and a fourth motor. Two conveyor chain support frames are arranged parallel to each other. The conveyor chain is respectively mounted on the conveyor chain support frames. The fourth motor is located at the bottom of one side of the conveyor chain support frame. The output shaft of the fourth motor is connected to the conveyor chain via gears. Adjacent gears are connected via transmission rods. The conveyor chain has V-shaped teeth spaced apart. The rod conveyor chain is connected to a height adjustment mechanism. The height adjustment mechanism includes a fifth hydraulic cylinder, a lifting chain connecting rod, a lifting chain swing rod, a pull rod, and a lifting chain guide post. The conveyor chain support frame is connected to a pulley seat via a housing. The pulley seat abuts against the side of the lifting chain guide post via pulleys. Adjacent lifting chain swing rods are fixedly connected via the lifting chain connecting rod. Opposite lifting chain swing rods are connected via a pull rod. The fifth hydraulic cylinder is connected to the lifting chain connecting rod via a fifth piston rod.

5. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: The lifting mechanism includes a first base, a third hydraulic cylinder, and a supporting end. The third hydraulic cylinder is located on the first base and is connected to the supporting end via a third piston rod.

6. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: The rotary clamping mechanism includes a first motor, a first hydraulic cylinder, a crossbeam, and a positioning rod. A baffle is provided on the truss, and the first hydraulic cylinder is connected to the baffle. The first hydraulic cylinder is connected to the crossbeam via a first piston rod. A first track is provided on the top surface of the crossbeam, and the crossbeam is slidably connected to the first track via a first slider. A suspension plate is provided at the bottom of one side of the crossbeam, and a support plate is provided on the truss. The positioning rod is rotatably connected to the support plate and the suspension plate, and the positioning tube passes horizontally through the suspension plate. A mounting bracket and an L-shaped plate are provided at the bottom of the other side of the crossbeam. The first motor is mounted on the L-shaped plate, and the output shaft of the first motor is connected to a rotating shaft, which passes horizontally through the mounting bracket.

7. The automatic spraying equipment for conical round rods according to claim 6, characterized in that: A pressure sensor is connected to the end of the rotating shaft. The pressure sensor is connected to the sleeve. A support plug is movably connected to the sleeve. The support plug is connected to the pressure sensor by a spring.

8. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: The paint spraying mechanism includes a track beam, a horizontal moving frame, a vertical moving frame, and a spray head. The two ends of the track beam are connected to the support beam via side plates. The horizontal moving frame is connected to the track beam and is equipped with a drive motor, a first roller, and a guide rail. The output shaft of the drive motor is connected to the first roller, which is supported on the track beam. A drag chain connects the guide rail and the drive motor. A second motor is located at the top of the guide rail and is connected to the vertical moving frame via a lead screw. The vertical moving frame is connected to the guide rail via a second roller. A T-shaped block is connected to the vertical moving frame via a fixed rod, and the spray head is located at the bottom of the T-shaped block.

9. The automatic spraying equipment for conical round rods according to claim 1, characterized in that: It also includes a rod diameter detection mechanism, which is located below the rod conveyor chain and close to the lifting mechanism. The rod diameter detection mechanism includes a second base, a fourth hydraulic cylinder, a horizontal rod, and a laser diameter measuring instrument. The fourth hydraulic cylinder is located on the second base and is connected to the horizontal rod through a fourth piston rod. The laser diameter measuring instrument is located on the top surface of the horizontal rod.

10. A spraying method using the automatic spraying equipment for conical round rods as described in any one of claims 1 to 9, characterized in that... Includes the following steps: S1. The rods in the transfer box are transferred to the V-shaped teeth of the conveyor chain by the rod transfer mechanism. The central processing unit is electrically connected to the rod conveyor chain and controls the conveyor chain on the rod conveyor chain to move forward step by step. S2. When the rod is transported to the rod diameter detection mechanism station, the laser diameter measuring instrument is lifted upward to measure the diameter of the rod and transmits the signal to the central processing unit. The central processing unit analyzes the rod diameter obtained by photoelectric signal parsing and sends a signal to the lifting mechanism to instruct the lifting mechanism to rise to a height of H. S3. The rod continues to step forward to the lifting mechanism, which lifts the rod up to a height of H to ensure that the end of the rotary clamping mechanism can be inserted into the conical rod. S4. Next, the support plug with pressure sensor is inserted into the end hole of the conical rod. The lifting mechanism descends and resets. When the pressure sensor is compressed and reaches the preset pressure value, the clamping of the conical rod stops. The first motor starts and drives the conical rod to rotate at a predetermined speed. S5. The paint spraying mechanism moves from one end of the rod to the other along a predetermined trajectory to spray paint evenly. S6. After the paint spraying is completed, the lifting mechanism rises to a height H and comes into contact with the conical rod. The rotating clamping mechanism is released and disengaged from the end of the conical rod. The lifting mechanism is reset and the painted rod is placed in the V-shaped teeth of the conveyor chain. The central processing unit instructs the fourth motor of the rod conveyor chain to work and continue to step forward to convey the rod into the drying room. S7. The drying time is determined based on the drying time of 120μm thick paint in the laboratory. When the cone-shaped round rod is output from the drying room, the finished cone-shaped round rod is obtained. The finished cone-shaped round rod is then placed into the transfer box using a rod transfer mechanism.

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