Paint spraying production line for inner hole of threading pipe

Abstract

The invention relates to the technical field of threading pipe machining, in particular to a threading pipe inner hole paint spraying production line which comprises a feeding device, a conveying device, a transferring device, a first paint spraying device and a second paint spraying device. The feeding device is used for feeding threading pipes to the conveying device, and the conveying device is used for conveying the threading pipes one by one. The transferring device is used for transferring the threading pipes on the conveying device to the paint spraying station of the first paint spraying device, and can transfer the threading pipes on the paint spraying station of the first paint spraying device to the paint spraying station of the second paint spraying device and transfer the threading pipes on the paint spraying station of the second paint spraying device to the next procedure. The paint spraying component of the first paint spraying device can stretch into the threading pipe from the first end of the threading pipe so as to spray paint on one part of an inner hole of the threading pipe, and the paint spraying component of the second paint spraying device can stretch into the threading pipe from the second end of the threading pipe so as to spray paint on the other part of the inner hole of the threading pipe. The sum of the length of the paint spraying component of the first paint spraying device and the length of the paint spraying component of the second paint spraying device is larger than the length of the threading pipe. All parts of the inner hole can be fully covered with anticorrosive paint through the first paint spraying device and the second paint spraying device, and therefore the phenomenon of spraying leakage possibly caused by single-side paint spraying is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of threading tube processing, in particular to a threading tube inner hole painting production line. Background Art

[0002] In many fields such as electricity, communications, construction, and industrial automation, wire conduits serve as a protective layer for transmission lines such as wires and cables, and their internal anti-corrosion treatment is crucial. Anti-corrosion spray painting, as a common treatment method, aims to prevent corrosive media such as moisture, oxygen, and chemicals from corroding the inner wall of the conduit by forming a protective film, thereby extending its service life and ensuring the safe operation of the transmission line. At present, the inner hole of many conduits is sprayed with paint using a single-sided spraying method that enters from one end, which results in the paint spraying device or nozzle only covering the front half of the interior of the pipe, and leakage at the other end, making it difficult to ensure that the entire inner hole can be fully protected, and the anti-corrosion effect is poor. To this end, it is necessary to improve the existing technology to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a production line for spraying paint on the inner hole of a threading tube, aiming to solve the problem of spray leakage caused by spraying paint on the inner hole of a threading tube in the prior art using a single-side spraying method.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a threading tube inner hole painting production line, comprising a feeding device, a conveying device, a transfer device, a first painting device and a second painting device; the first painting device and the second painting device are relatively arranged on both sides of the transfer device, the first painting device and the second painting device are both provided with painting stations, and the painting stations of the first painting device and the second painting device are staggered; the feeding device is used to feed the threading tube to the conveying device, the conveying device is used to convey the threading tubes one by one, and the transfer device is used to transfer the threading tubes on the conveying device to the first spraying device. The paint spraying station of the paint spraying device can transfer the threading tube on the paint spraying station of the first paint spraying device to the paint spraying station of the second paint spraying device and transfer the threading tube on the paint spraying station of the second paint spraying device to the next process, the paint spraying component of the first paint spraying device can extend into the threading tube from the first end of the threading tube to spray paint a part of the inner hole of the threading tube, the paint spraying component of the second paint spraying device can extend into the threading tube from the second end of the threading tube to spray paint another part of the inner hole of the threading tube, and the sum of the lengths of the paint spraying components of the first paint spraying device and the paint spraying components of the second paint spraying device is greater than the length of the threading tube.

[0005] Furthermore, the first paint spraying device and the second paint spraying device both include a paint spraying rack and a paint spraying propulsion mechanism and a paint spraying side clamping mechanism arranged on the paint spraying rack; the paint spraying rack is provided with a plurality of pipe clamping seats, the paint spraying side clamping mechanism is used to fix the threading tube on the pipe clamping seat, the paint spraying propulsion mechanism is arranged at the paint spraying station and is used to paint the threading tube on the pipe clamping seat; the paint spraying propulsion mechanism includes a propulsion drive module, a propulsion block and a spray gun; the propulsion drive module is arranged on the paint spraying rack, the propulsion block is connected to the paint spraying rack in a transverse sliding manner and is driven to slide by the propulsion drive module, and a plurality of spray guns are arranged and are all arranged on the propulsion block.

[0006] Furthermore, the paint spraying side clamping mechanism includes a side clamping plate, a side clamping cylinder, a clamping block, a side clamping block and a guide column; the side clamping plate is arranged on the paint spraying frame, the side clamping cylinder is arranged on the side clamping plate, the side clamping block is arranged with a plurality of pipe clamping grooves, the clamping block and the side clamping block are both arranged at the telescopic end of the side clamping cylinder and can be driven to rise and fall by the side clamping cylinder so that the wire threading tube is clamped on the pipe clamping seat by the clamping block and limited in the pipe clamping groove by the side clamping block, one end of the guide column is slidably connected to the side clamping plate, and the other end is arranged on the clamping block, and the guide column can be extended and retracted with the lifting and lowering of the clamping block.

[0007] Furthermore, the first paint spraying device and the second paint spraying device both include a paint mist suction mechanism, which is arranged on the side clamping plate. When the paint spraying propulsion mechanism of the first paint spraying device sprays paint on the inner hole of the threading tube, the paint mist suction mechanism of the second paint spraying device suctions paint mist on the inner hole of the threading tube from the other end of the threading tube; when the paint spraying propulsion mechanism of the second paint spraying device sprays paint on the inner hole of the threading tube, the paint mist suction mechanism of the first paint spraying device suctions paint mist on the inner hole of the threading tube from the other end of the threading tube.

[0008] Furthermore, the conveying device includes a conveying frame and a conveying conveyor belt arranged on the conveying frame; the conveying conveyor belt is provided with a pipe placing seat, and the pipe placing seat can receive the threading pipes dropped one by one from the feeding device;

[0009] The transfer device includes a transfer frame, a transfer drive module and a transfer assembly; the transfer drive module is arranged on the transfer frame, and two groups of transfer assemblies are arranged, and the two groups of transfer assemblies are connected to the transfer frame along the longitudinal sliding direction and driven to slide by the transfer drive module; the transfer assembly includes a transfer plate, a lifting cylinder and a lifting plate; the transfer plate is connected to the transfer frame along the longitudinal sliding direction, the lifting cylinder is arranged on the transfer plate, the lifting plate is arranged at the telescopic end of the lifting cylinder and can be driven to rise and fall by the lifting cylinder; the lifting plate is provided with a plurality of jacking pipe grooves, and the jacking pipe grooves can lift the threading pipe on the pipe seat.

[0010] Furthermore, the feeding device includes a feeding rack and a feeding belt, a material distribution conveyor belt, a material blocking and adjusting mechanism, a material limiting mechanism, and a material pushing mechanism arranged on the feeding rack; the feeding rack is provided with a feeding inclined section and a feeding limit plate, the feeding inclined section is provided with a feeding lower inclined plate, a single-tube blanking channel is formed between the feeding inclined section and the feeding limit plate, a single-tube feeding channel is formed between the material limiting mechanism and the feeding limit plate, and the single-tube blanking channel and the single-tube feeding channel form an inclined L-shape; the material blocking and adjusting mechanism is longitudinally slidably connected above the material distribution conveyor belt and can allow the threading tubes to enter the lower feeding inclined section one by one; the material limiting mechanism and the material pushing mechanism are both arranged close to the conveying device, and the material pushing mechanism is used to push the threading tube into the single-tube feeding channel and enter the feeding lower inclined plate.

[0011] Furthermore, the material blocking adjustment mechanism includes an adjustment plate and a material blocking assembly arranged at both lateral ends of the adjustment plate; the material blocking assembly includes a vertical material blocking cylinder, a vertical material blocking plate, a longitudinal material blocking cylinder and a longitudinal material blocking plate; the adjustment plate is connected to the loading rack in a longitudinal sliding manner, the vertical material blocking cylinder and the longitudinal material blocking cylinder are both arranged on the adjustment plate, the vertical material blocking cylinder is provided with a stroke adjustment nut, the vertical material blocking plate is arranged at the telescopic end of the vertical material blocking cylinder, and the longitudinal material blocking plate is arranged at the telescopic end of the longitudinal material blocking cylinder.

[0012] Furthermore, the material limiting mechanism includes a material limiting adjustment module and a plurality of material limiting plates. The material limiting adjustment module is arranged on the loading rack. The plurality of material limiting plates are connected to the loading rack in a longitudinal sliding manner and are driven to slide by the material limiting adjustment module.

[0013] Furthermore, the lifting mechanism includes a lifting cylinder and a plurality of lifting lower inclined blocks. The lifting cylinder is arranged on the loading rack, one of the lifting lower inclined blocks is arranged at the telescopic end of the lifting cylinder and can be driven by the lifting cylinder to slide vertically and connected to the loading rack, and the remaining lifting lower inclined blocks are connected to one of the lifting lower inclined blocks by means of a transmission module to achieve synchronization.

[0014] Furthermore, the feeding device also includes an anti-stacking mechanism arranged at the two lateral ends of the feeding rack, the anti-stacking mechanism includes an anti-stacking cylinder and an anti-stacking block, the anti-stacking cylinder is arranged on the feeding rack, the anti-stacking block is arranged at the telescopic end of the anti-stacking cylinder and can be driven to rise and fall by the anti-stacking cylinder to prevent the threading tubes from stacking in the single-tube feeding channel.

[0015] Compared with the prior art, the wire threading tube inner hole painting production line provided by the present invention uses a first paint spraying device to extend the paint component of the first end of the wire threading tube into the wire threading tube for painting, and then uses a second paint spraying device to extend the paint component of the second end of the wire threading tube into the wire threading tube for painting, thereby ensuring that all parts of the inner hole can be fully covered with anti-corrosion paint, thereby avoiding the leakage phenomenon that may be caused by unilateral painting, and better protecting the wire threading tube from erosion by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 is a schematic diagram of the three-dimensional structure of the first painting device;

[0018] Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of part A;

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of the transfer device;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the feeding device;

[0021] Figure 6 yes Figure 5 A schematic diagram of the enlarged structure of part B;

[0022] Figure 7 is a side view of the feeding device;

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the feeding device after some parts are hidden;

[0024] Fig. 9 yes Figure 8 A schematic diagram of the enlarged structure of the middle C part;

[0025] Fig.10 yes Figure 8 A schematic diagram of the enlarged structure of the D part;

[0026] Fig.11 yes Figure 8 A schematic diagram of the enlarged structure of part E in the middle;

[0027] Fig.12 It is a three-dimensional structural schematic diagram of the conveying device.

[0028] Description of reference numerals:

[0029] 1. Feeding device; 11. Feeding rack; 111. Feeding inclined section; 112. Feeding limit plate; 113. Over-feeding lower inclined plate; 12. Feeding belt; 13. Material distribution conveyor belt; 14. Material blocking adjustment mechanism; 141. Adjustment plate; 142. Vertical material blocking cylinder; 143. Vertical material blocking plate; 144. Longitudinal material blocking cylinder; 145. Longitudinal material blocking plate; 146. Stroke adjustment nut; 15. Material limiting mechanism; 151. Material limiting adjustment module; 152. Material limiting plate; 16. Ejecting mechanism; 161. Ejecting cylinder; 162. Ejecting lower inclined block; 17. Single-tube dropping channel; 18. Single-tube feeding channel; 19. Anti-stacking mechanism; 191. Anti-stacking cylinder; 192. Anti-stacking block;

[0030] 2. Conveying device; 21. Conveying rack; 22. Conveying conveyor belt; 23. Tube placement seat;

[0031] 3. Transfer device; 31. Transfer frame; 32. Transfer drive module; 33. Transfer assembly; 331. Transfer plate; 332. Lifting cylinder; 333. Lifting plate; 334. Pipe jacking groove;

[0032] 4. First paint spraying device; 41. Paint spraying rack; 411. Clamping tube seat; 42. Paint spraying propulsion mechanism; 421. Propulsion drive module; 422. Propulsion block; 423. Spray gun; 43. Paint spraying side clamping mechanism; 431. Side clamping plate; 432. Side clamping cylinder; 433. Pressing block; 434. Side clamping block; 435. Guide column; 436. Clamping tube groove; 44. Paint mist suction mechanism;

[0033] 5. The second painting device. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with specific embodiments.

[0035] In the present invention, unless otherwise clearly specified and limited, when terms such as "set on", "connected", and "connected" appear, these terms 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 connected through one or more intermediate media. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The directional words that appear in the present invention are to better illustrate the characteristics of the features and the relationship between the features. It should be understood that when the placement direction of the present invention changes, the characteristics of the features and the direction of the relationship between the features also change accordingly. Therefore, the directional words do not constitute an absolute limitation on the characteristics of the features and the relationship between the features in space, but only play a relative limitation role.

[0036] The present invention provides a production line for spraying paint on the inner hole of a threading tube, such as Figures 1 to 12As shown, it includes a feeding device 1, a conveying device 2, a transfer device 3, a first paint spraying device 4 and a second paint spraying device 5; the first paint spraying device 4 and the second paint spraying device 5 are relatively arranged on the lateral sides of the transfer device 3, the first paint spraying device 4 and the second paint spraying device 5 are both provided with a paint spraying station, and the paint spraying stations of the first paint spraying device 4 and the second paint spraying device are staggered; the feeding device 1 is used to feed the threading tube to the conveying device 2, the conveying device 2 is used to transport the threading tubes one by one, and the transfer device 3 is used to transfer the threading tube on the conveying device 2 to the paint spraying station of the first paint spraying device 4 , the wire threading tube on the painting station of the first paint spraying device 4 can be transferred to the painting station of the second paint spraying device 5 and the wire threading tube on the painting station of the second paint spraying device 5 can be transferred to the next process, the painting component of the first paint spraying device 4 can extend into the wire threading tube from the first end of the wire threading tube to spray paint a part of the inner hole of the wire threading tube, and the painting component of the second paint spraying device 5 can extend into the wire threading tube from the second end of the wire threading tube to spray paint another part of the inner hole of the wire threading tube, and the sum of the lengths of the painting components of the first paint spraying device 4 and the second paint spraying device 5 is greater than the length of the wire threading tube.

[0037] Based on the above-mentioned structural setting, the paint spraying component of the first paint spraying device 4 extends into the threading tube from the first end of the threading tube for spraying paint, and then the paint spraying component of the second paint spraying device 5 extends into the threading tube from the second end of the threading tube for spraying paint, ensuring that all parts of the inner hole can be fully covered with anti-corrosion paint, thereby avoiding the leakage phenomenon that may be caused by unilateral spraying of paint, and better protecting the threading tube from erosion by the external environment.

[0038] In this embodiment, the first paint spraying device 4 and the second paint spraying device 5 both include a paint spraying frame 41 and a paint spraying propulsion mechanism 42 and a paint spraying side clamping mechanism 43 arranged on the paint spraying frame 41; the paint spraying frame 41 is provided with a plurality of clamping pipe seats 411, the paint spraying side clamping mechanism 43 is used to fix the threading pipe on the clamping pipe seat 411, the paint spraying propulsion mechanism 42 is arranged at the painting station and is used to paint the threading pipe on the clamping pipe seat 411; the paint spraying propulsion mechanism 42 includes a propulsion driving module 421, a propulsion block 422 and a spray gun 423; the propulsion driving module 421 is arranged on the paint spraying frame 41, the propulsion block 422 is connected to the paint spraying frame 41 along a lateral sliding manner and is driven to slide by the propulsion driving module 421, and a plurality of spray guns 423 are arranged and are all arranged on the propulsion block 422. The plurality of spray guns 423 can simultaneously spray paint the inner holes of a plurality of threading pipes, thereby significantly shortening the spraying time and improving the overall spraying efficiency.

[0039] In this embodiment, the paint spraying side clamping mechanism 43 includes a side clamping plate 431, a side clamping cylinder 432, a clamping block 433, a side clamping block 434 and a guide column 435; the side clamping plate 431 is arranged on the paint spraying frame 41, the side clamping cylinder 432 is arranged on the side clamping plate 431, and the side clamping block 434 is provided with a plurality of pipe clamping grooves 436. The clamping block 433 and the side clamping block 434 are both arranged at the telescopic end of the side clamping cylinder 432 and can be driven to rise and fall by the side clamping cylinder 432 so that the wire threading tube is clamped on the pipe clamping seat 411 by the clamping block 433 and limited in the pipe clamping groove 436 by the side clamping block 434. One end of the guide column 435 is slidably connected to the side clamping plate 431, and the other end is arranged on the clamping block 433. The guide column 435 can be extended and retracted with the lifting and lowering of the clamping block 433. The paint spraying side clamping mechanism 43 can effectively fix the threading tube, thereby preventing the threading tube from being displaced or shaken during the paint spraying process, thereby ensuring the stability and uniformity of the paint spraying.

[0040] In this embodiment, the first paint spraying device 4 and the second paint spraying device 5 both further include a paint mist suction mechanism 44, which is arranged on the side clamping plate 431. When the paint spraying propulsion mechanism 42 of the first paint spraying device 4 sprays paint on the inner hole of the threading tube, the paint mist suction mechanism 44 of the second paint spraying device 5 suctions paint mist on the inner hole of the threading tube from the other end of the threading tube; when the paint spraying propulsion mechanism 42 of the second paint spraying device 5 sprays paint on the inner hole of the threading tube, the paint mist suction mechanism 44 of the first paint spraying device 4 suctions paint mist on the inner hole of the threading tube from the other end of the threading tube. The paint mist suction mechanism 44 can collect the paint mist generated during the painting process, avoid the paint mist from accumulating in the tube and diffusing into the air, and reduce air pollution.

[0041] In this embodiment, the conveying device 2 includes a conveying frame 21 and a conveying conveyor belt 22 arranged on the conveying frame 21; the conveying conveyor belt 22 is provided with a pipe placement seat 23, and the pipe placement seat 23 can receive the threading tubes dropped from the feeding device 1 one by one, thereby realizing the single-tube transportation of the threading tube;

[0042] The transfer device 3 includes a transfer frame 31, a transfer drive module 32 and a transfer assembly 33; the transfer drive module 32 is arranged on the transfer frame 31, and two groups of transfer assemblies 33 are arranged, and the two groups of transfer assemblies 33 are both connected to the transfer frame 31 along the longitudinal sliding direction and are driven to slide by the transfer drive module 32; the transfer assembly 33 includes a transfer plate 331, a lifting cylinder 332 and a lifting plate 333; the transfer plate 331 is connected to the transfer frame 31 along the longitudinal sliding direction, the lifting cylinder 332 is arranged on the transfer plate 331, and the lifting plate 333 is arranged at the telescopic end of the lifting cylinder 332 and can be driven to rise and fall by the lifting cylinder 332; the lifting plate 333 is provided with a plurality of jacking pipe grooves 334, and the jacking pipe grooves 334 can lift the threading pipe on the pipe seat 23. In the process of transferring the threading tube, the transfer drive module 32 drives the transfer component 33 to the conveying device 2, and then the lifting cylinder 332 drives the lifting plate 333 to rise. The lifting plate 333 simultaneously lifts the threading tube on the pipe seat 23 of the conveying device 2, the threading tube on the first paint spraying device 4 and the second paint spraying device 5 painting station, and then the transfer drive module 32 drives the transfer component 33 to the painting station of the first paint spraying device 4, and the lifting cylinder 332 drives the lifting plate 333 to descend to place the threading tube on the top pipe groove 334 on the pipe clamping seat 411 on the painting station of the first paint spraying device 4, the pipe clamping seat 411 on the painting station of the second paint spraying device 5 and the next process, thereby completing the transfer operation of the threading tube, significantly shortening the total time required for painting, and greatly improving production efficiency.

[0043] In this embodiment, the feeding device 1 includes a feeding rack 11 and a feeding belt 12, a material distribution conveyor belt 13, a material blocking adjustment mechanism 14, a material limiting mechanism 15, and a material ejecting mechanism 16 arranged on the feeding rack 11; the lateral ends of the feeding rack 11 are provided with a feeding inclined section 111 and a feeding limiting plate 112, the feeding inclined section 111 is provided with a feeding lower inclined plate 113, a single-tube blanking channel 17 is formed between the feeding inclined section 111 and the feeding limiting plate 112, and the material limiting mechanism 15 is connected to the upper A single-tube feeding channel 18 is formed between the material limiting plates 112, and the single-tube blanking channel 17 and the single-tube feeding channel 18 form an inclined L shape; the material blocking adjustment mechanism 14 is connected to the top of the material distribution conveyor belt 13 by sliding in the longitudinal direction and can allow the threading tubes to enter the single-tube blanking channel 17 one by one; the material limiting mechanism 15 and the material pushing mechanism 16 are both arranged near the conveying device 2, and the material pushing mechanism 16 is used to push the threading tube into the single-tube feeding channel 18 and enter the lower inclined plate 113 for material transfer. Through the above-mentioned structural design, the threading tube falls from the feeding belt 12 to the material distribution conveyor belt 13, and under the action of the material blocking adjustment mechanism 14 and the material distribution conveyor belt 13, the threading tube can enter the single-tube blanking channel 17 one by one in an orderly manner, and then enter the single-tube feeding channel 18 from the single-tube blanking channel 17 under the action of the material pushing mechanism 16, and finally come to the conveying device 2 through the lower inclined plate 113 for material transfer.

[0044] In this embodiment, the material stopping adjustment mechanism 14 includes an adjusting plate 141 and a material stopping assembly arranged at the lateral ends of the adjusting plate 141; the material stopping assembly includes a vertical material stopping cylinder 142, a vertical material stopping plate 143, a longitudinal material stopping cylinder 144 and a longitudinal material stopping plate 145; the adjusting plate 141 is connected to the loading rack 11 in a longitudinal sliding manner, the vertical material stopping cylinder 142 and the longitudinal material stopping cylinder 144 are both arranged on the adjusting plate 141, and the vertical material stopping cylinder 142 is provided with a stroke adjustment nut 146; the longitudinal basic position of the longitudinal material stopping cylinder 144 and the vertical basic position of the vertical material stopping cylinder 142 are adjusted by the adjusting plate 141 and the stroke adjustment nut 146 to adapt to threading tubes of different sizes; the vertical material stopping plate 143 is arranged at the telescopic end of the vertical material stopping cylinder 142, and the longitudinal material stopping plate 145 is arranged at the telescopic end of the longitudinal material stopping cylinder 144. Through the cooperation of the vertical material blocking cylinder 142 and the longitudinal material blocking cylinder 144, it can be ensured that the threading tubes can pass through the material distribution conveyor belt 13 one by one in an orderly manner, thereby greatly improving the conveying efficiency.

[0045] In this embodiment, the material limiting mechanism 15 includes a material limiting adjustment module 151 and a plurality of material limiting plates 152. The material limiting adjustment module 151 is arranged on the loading rack 11. The plurality of material limiting plates 152 are all connected to the loading rack 11 along the longitudinal sliding direction and are driven to slide by the material limiting adjustment module 151 to adjust the size of the single-tube loading channel 18 to adapt to threading tubes of different sizes.

[0046] In this embodiment, the lifting mechanism 16 includes a lifting cylinder 161 and a plurality of lifting lower inclined blocks 162. The lifting cylinder 161 is arranged on the loading rack 11, one of the lifting lower inclined blocks 162 is arranged at the telescopic end of the lifting cylinder 161 and can be driven by the lifting cylinder 161 to slide vertically and be connected to the loading rack 11, and the remaining lifting lower inclined blocks 162 are connected to one of the above-mentioned lifting lower inclined blocks 162 by means of a transmission module (the transmission module is a combination of a rack, a gear and a transmission rod, and one of the lifting lower inclined blocks 162 drives the rack to move when it moves, and the rack drives the gear to rotate, and then the gear and rack on the other lifting lower inclined block 162 are driven by the transmission of the transmission rod to achieve synchronization), so as to realize the lifting and lowering of all the lifting lower inclined blocks 162 together. When the threading tube needs to be loaded onto the conveying device 2 , the pushing cylinder 161 drives the pushing lower inclined block 162 to rise to push the threading tube of the single-tube dropping channel 17 into the single-tube loading channel 18 until the threading tube can fall onto the feeding lower inclined plate 113 .

[0047] In this embodiment, the feeding device 1 also includes an anti-stacking mechanism 19 arranged at both lateral ends of the feeding frame 11, and the anti-stacking mechanism 19 includes an anti-stacking cylinder 191 and an anti-stacking block 192. The anti-stacking cylinder 191 is arranged on the feeding frame 11, and the anti-stacking block 192 is arranged at the telescopic end of the anti-stacking cylinder 191 and can be driven to rise and fall by the anti-stacking cylinder 191 to prevent the threading tube from stacking in the single-tube feeding channel 18. The anti-stacking mechanism 19 can effectively prevent the threading tube from stacking in the single-tube blanking channel 17, so that the lifting mechanism 16 can more conveniently and quickly lift the threading tube from the single-tube blanking channel 17 to the single-tube feeding channel 18, thereby improving the feeding efficiency.

[0048] In summary, this wire threading tube inner hole painting production line can solve the problem of leakage caused by the single-sided painting method used in the prior art for painting the inner hole of the wire threading tube.

[0049] In the absence of conflict, the above-mentioned embodiments and features thereof may be combined with each other.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A production line for painting the inner hole of a threading tube, characterized in that: The invention comprises a feeding device (1), a conveying device (2), a transfer device (3), a first paint spraying device (4) and a second paint spraying device (5); the first paint spraying device (4) and the second paint spraying device (5) are relatively arranged on the lateral sides of the transfer device (3); the first paint spraying device (4) and the second paint spraying device (5) are both provided with a paint spraying station, and the paint spraying stations of the first paint spraying device (4) and the second paint spraying device (5) are staggered; the feeding device (1) is used to feed the threading tube to the conveying device (2); the conveying device (2) is used to transport the threading tubes one by one; the transfer device (3) is used to transfer the threading tubes on the conveying device (2) to the first paint spraying device (4); The invention relates to a paint spraying station of a first paint spraying device (4), which can transfer a threading tube on the paint spraying station of the first paint spraying device (4) to the paint spraying station of the second paint spraying device (5) and transfer the threading tube on the paint spraying station of the second paint spraying device (5) to the next process, wherein the paint spraying component of the first paint spraying device (4) can extend into the threading tube from the first end thereof to spray paint a part of the inner hole of the threading tube, and the paint spraying component of the second paint spraying device (5) can extend into the threading tube from the second end thereof to spray paint another part of the inner hole of the threading tube, and the sum of the lengths of the paint spraying component of the first paint spraying device (4) and the paint spraying component of the second paint spraying device (5) is greater than the length of the threading tube.

2. The threading tube inner hole painting production line according to claim 1 is characterized by: The first paint spraying device (4) and the second paint spraying device (5) both comprise a paint spraying frame (41), a paint spraying propulsion mechanism (42) and a paint spraying side clamping mechanism (43) arranged on the paint spraying frame (41); the paint spraying frame (41) is provided with a plurality of pipe clamping seats (411), the paint spraying side clamping mechanism (43) is used to fix the threading tube on the pipe clamping seat (411), and the paint spraying propulsion mechanism (42) is arranged at the paint spraying station and is used to spray paint on the threading tube on the pipe clamping seat (411); The paint spraying propulsion mechanism (42) comprises a propulsion driving module (421), a propulsion block (422) and a spray gun (423); the propulsion driving module (421) is arranged on the paint spraying frame (41), the propulsion block (422) is connected to the paint spraying frame (41) in a lateral sliding manner and is driven to slide by the propulsion driving module (421), and a plurality of spray guns (423) are arranged and are all arranged on the propulsion block (422).

3. The threading tube inner hole painting production line according to claim 2 is characterized by: The paint spraying side clamping mechanism (43) comprises a side clamping plate (431), a side clamping cylinder (432), a pressing block (433), a side clamping block (434) and a guide column (435); the side clamping plate (431) is arranged on the paint spraying frame (41), the side clamping cylinder (432) is arranged on the side clamping plate (431), the side clamping block (434) is provided with a plurality of clamping pipe grooves (436), the pressing block (433) and the side clamping block (434) are both arranged on the side The telescopic end of the clamping cylinder (432) can be driven to rise and fall by the side clamping cylinder (432) so that the threading tube is pressed by the clamping block (433) on the tube clamping seat (411) and is limited in the tube clamping groove (436) by the side clamping block (434). One end of the guide column (435) is slidably connected to the side clamping plate (431), and the other end is arranged on the clamping block (433). The guide column (435) can be telescopic and retractable as the clamping block (433) rises and falls.

4. The threading tube inner hole painting production line according to claim 3 is characterized by: The first paint spraying device (4) and the second paint spraying device (5) both further include a paint mist suction mechanism (44), which is arranged on the side clamping plate (431). When the paint spraying propulsion mechanism (42) of the first paint spraying device (4) sprays paint on the inner hole of the threading tube, the paint mist suction mechanism (44) of the second paint spraying device (5) suctions paint mist on the inner hole of the threading tube from the other end of the threading tube; when the paint spraying propulsion mechanism (42) of the second paint spraying device (5) sprays paint on the inner hole of the threading tube, the paint mist suction mechanism (44) of the first paint spraying device (4) suctions paint mist on the inner hole of the threading tube from the other end of the threading tube.

5. The threading tube inner hole painting production line according to claim 1 is characterized by: The conveying device (2) comprises a conveying frame (21) and a conveying conveyor belt (22) arranged on the conveying frame (21); the conveying conveyor belt (22) is provided with a pipe placement seat (23), and the pipe placement seat (23) can receive the threading pipes dropped one by one from the loading device (1); The transfer device (3) comprises a transfer frame (31), a transfer drive module (32) and a transfer assembly (33); the transfer drive module (32) is arranged on the transfer frame (31), and the transfer assembly (33) is provided with two groups, and the two groups of transfer assemblies (33) are connected to the transfer frame (31) in a longitudinal sliding manner and driven to slide by the transfer drive module (32); the transfer assembly (33) comprises a transfer plate (331), a lifting cylinder (332) and a lifting plate (333); the transfer plate (331) is connected to the transfer frame (31) in a longitudinal sliding manner, the lifting cylinder (332) is arranged on the transfer plate (331), and the lifting plate (333) is arranged at the telescopic end of the lifting cylinder (332) and can be driven to rise and fall by the lifting cylinder (332); the lifting plate (333) is provided with a plurality of jacking pipe grooves (334), and the jacking pipe grooves (334) can lift the threading pipe on the pipe seat (23).

6. The threading tube inner hole painting production line according to claim 1 is characterized by: The feeding device (1) comprises a feeding frame (11) and a feeding belt (12) arranged on the feeding frame (11), a material distribution conveyor belt (13), a material blocking adjustment mechanism (14), a material limiting mechanism (15), and a material pushing mechanism (16); the feeding frame (11) is provided with a feeding inclined section (111) and a feeding limiting plate (112); the feeding inclined section (111) is provided with a feeding lower inclined plate (113); a single-tube material dropping channel (17) is formed between the feeding inclined section (111) and the feeding limiting plate (112); the material limiting mechanism (15) and the feeding limiting mechanism (16) are connected to each other. A single-tube feeding channel (18) is formed between the positioning plates (112), and the single-tube blanking channel (17) and the single-tube feeding channel (18) form an inclined L shape; the material blocking adjustment mechanism (14) is slidably connected to the top of the material distribution conveyor belt (13) in the longitudinal direction and can allow the threading tubes to enter the lower feeding inclined section (111) one by one; the material limiting mechanism (15) and the material pushing mechanism (16) are both arranged near the conveying device (2), and the material pushing mechanism (16) is used to push the threading tube into the single-tube feeding channel (18) and enter the lower inclined plate (113) for feeding.

7. The threading tube inner hole painting production line according to claim 6 is characterized by: The material blocking adjustment mechanism (14) comprises an adjustment plate (141) and material blocking assemblies arranged at two lateral ends of the adjustment plate (141); the material blocking assembly comprises a vertical material blocking cylinder (142), a vertical material blocking plate (143), a longitudinal material blocking cylinder (144) and a longitudinal material blocking plate (145); the adjustment plate (141) is connected to the loading rack (11) in a longitudinal sliding manner, the vertical material blocking cylinder (142) and the longitudinal material blocking cylinder (144) are both arranged on the adjustment plate (141), the vertical material blocking cylinder (142) is provided with a stroke adjustment nut (146), the vertical material blocking plate (143) is arranged at the telescopic end of the vertical material blocking cylinder (142), and the longitudinal material blocking plate (145) is arranged at the telescopic end of the longitudinal material blocking cylinder (144).

8. The line for painting the inner hole of a threading tube according to claim 6 is characterized in that: The material limiting mechanism (15) comprises a material limiting adjustment module (151) and a plurality of material limiting plates (152); the material limiting adjustment module (151) is arranged on the material loading rack (11); the plurality of material limiting plates (152) are all connected to the material loading rack (11) in a longitudinal sliding manner and are driven to slide by the material limiting adjustment module (151).

9. The wire threading tube inner hole painting production line according to claim 6, characterized in that: The lifting mechanism (16) comprises a lifting cylinder (161) and a plurality of lifting lower inclined blocks (162); the lifting cylinder (161) is arranged on a loading rack (11); one of the lifting lower inclined blocks (162) is arranged at the telescopic end of the lifting cylinder (161) and can be driven by the lifting cylinder (161) to slide vertically and be connected to the loading rack (11); the remaining lifting lower inclined blocks (162) are connected to one of the lifting lower inclined blocks (162) by means of a transmission module to achieve synchronization.

10. The wire threading tube inner hole painting production line according to claim 6, characterized in that: The feeding device (1) further comprises an anti-stacking mechanism (19) arranged at both lateral ends of the feeding frame (11), the anti-stacking mechanism (19) comprising an anti-stacking cylinder (191) and an anti-stacking block (192), the anti-stacking cylinder (191) being arranged on the feeding frame (11), the anti-stacking block (192) being arranged at the telescopic end of the anti-stacking cylinder (191) and being driven to rise and fall by the anti-stacking cylinder (191) to prevent the threading tubes from being stacked in the single-tube feeding channel (18).

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