Paint spraying production line for inner hole of threading pipe

Abstract

The utility model relates to the technical field of threading pipe processing, in particular to a threading pipe inner hole paint spraying production line, which is characterized in that a feeding device is used for feeding threading pipes to a 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. And all parts of the inner hole can be fully covered by the anticorrosive paint.

Description

Technical Field

[0001] This utility model relates to the field of conduit processing technology, and in particular to a conduit inner hole painting production line. Background Technology

[0002] In various fields such as power, telecommunications, construction, and industrial automation, conduits serve as the protective layer for transmission lines such as wires and cables, making their internal corrosion protection crucial. Anti-corrosion painting, a common treatment method, aims to form a protective film to prevent the erosion of the conduit's inner wall by corrosive media such as moisture, oxygen, and chemicals, thereby extending its service life and ensuring the safe operation of the transmission lines. Currently, many conduit interior painting methods use a one-sided spraying approach, resulting in the painting device or nozzle only covering the first half of the conduit's interior, leaving the other end unpainted. This makes it difficult to ensure adequate protection for the entire interior, leading to poor corrosion protection. Therefore, it is necessary to improve existing technologies to solve these problems. Utility Model Content

[0003] The purpose of this utility model is to provide a production line for painting the inner hole of conduit, which aims to solve the problem of missed spraying caused by the single-sided painting method used in the existing technology for painting the inner hole of conduit.

[0004] To achieve the above objectives, this utility model provides a conduit inner hole painting production line, including 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 arranged opposite each other on the transverse sides of the transfer device, and both the first painting device and the second painting device are provided with painting stations, which are staggered; the feeding device is used to feed the conduit to the conveying device, the conveying device is used to convey the conduit one by one, and the transfer device is used to transfer the conduit on the conveying device to the first painting device. The painting station of the painting device can transfer the conduit on the painting station of the first painting device to the painting station of the second painting device and transfer the conduit on the painting station of the second painting device to the next process. The painting component of the first painting device can extend into the conduit from the first end to paint a part of the inner hole of the conduit. The painting component of the second painting device can extend into the conduit from the second end to paint another part of the inner hole of the conduit. The sum of the lengths of the painting components of the first and second painting devices is greater than the length of the conduit.

[0005] Furthermore, both the first and second painting devices include a painting frame and a painting propulsion mechanism and a painting side clamping mechanism disposed on the painting frame; the painting frame is provided with multiple pipe clamping seats, the painting side clamping mechanism is used to fix the conduit to the pipe clamping seat, and the painting propulsion mechanism is disposed at the painting station and is used to paint the conduit on the pipe clamping seat; the painting propulsion mechanism includes a propulsion drive module, a propulsion block and a spray gun; the propulsion drive module is disposed on the painting frame, the propulsion block is slidably connected to the painting frame in the lateral direction and is driven to slide by the propulsion drive module, and multiple spray guns are disposed on the propulsion block.

[0006] Furthermore, the paint spraying side clamping mechanism includes a side clamping plate, a side clamping cylinder, a pressing block, a side clamping block, and a guide post; the side clamping plate is set on the paint spraying frame, the side clamping cylinder is set on the side clamping plate, the side clamping block is provided with multiple pipe clamping slots, the pressing block and the side clamping block are both set on the telescopic end of the side clamping cylinder and can be driven to rise and fall by the side clamping cylinder so that the conduit is pressed by the pressing block against the pipe clamping seat and limited by the side clamping block in the pipe clamping slot, one end of the guide post is slidably connected to the side clamping plate, and the other end is set on the pressing block, and the guide post can extend and fall with the rising and falling of the pressing block.

[0007] Furthermore, both the first and second painting devices also include a paint mist suction mechanism, which is installed on the side clamp. When the paint propulsion mechanism of the first painting device paints the inner hole of the conduit, the paint mist suction mechanism of the second painting device suctions paint mist from the other end of the conduit to the inner hole of the conduit; when the paint propulsion mechanism of the second painting device paints the inner hole of the conduit, the paint mist suction mechanism of the first painting device suctions paint mist from the other end of the conduit to the inner hole of the conduit.

[0008] Furthermore, the conveying device includes a conveyor frame and a conveyor belt mounted on the conveyor frame; the conveyor belt is equipped with a pipe holder, which can receive the conduit falling one by one from the feeding device.

[0009] The transfer device includes a transfer frame, a transfer drive module, and transfer components. The transfer drive module is mounted on the transfer frame, and two sets of transfer components are provided. The two sets of transfer components are slidably connected to the transfer frame along the longitudinal direction and are driven to slide by the transfer drive module. The transfer components include a transfer plate, a lifting cylinder, and a lifting plate. The transfer plate is slidably connected to the transfer frame along the longitudinal direction, and the lifting cylinder is located on the transfer plate. The lifting plate is located at the extension end of the lifting cylinder and can be driven to rise and fall by the lifting cylinder. The lifting plate is provided with multiple jacking slots, which can lift the conduit on the conduit holder.

[0010] Furthermore, the feeding device includes a feeding frame and a feeding belt, a distributing conveyor belt, a baffle adjustment mechanism, a limiting mechanism, and a top-loading mechanism disposed on the feeding frame; the feeding frame is provided with a feeding inclined section and a feeding limiting plate, the feeding inclined section is provided with a lower inclined plate for passing material, a single-tube dropping channel is formed between the feeding inclined section and the feeding limiting plate, a single-tube feeding channel is formed between the limiting mechanism and the feeding limiting plate, and the single-tube dropping channel and the single-tube feeding channel form an inclined L-shape; the baffle adjustment mechanism is slidably connected longitudinally above the distributing conveyor belt and can allow the threaded tubes to enter the lower feeding inclined section one by one; the limiting mechanism and the top-loading mechanism are both disposed near the conveying device, and the top-loading mechanism is used to push the threaded tubes into the single-tube feeding channel and into the lower inclined plate for passing material.

[0011] Furthermore, the material blocking adjustment mechanism includes an adjustment plate and material blocking components disposed at both ends of the adjustment plate laterally; the material blocking components include 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 slidably connected to the loading frame along the longitudinal direction, the vertical material blocking cylinder and the longitudinal material blocking cylinder are both disposed on the adjustment plate, the vertical material blocking cylinder is provided with a stroke adjustment nut, the vertical material blocking plate is disposed at the extension end of the vertical material blocking cylinder, and the longitudinal material blocking plate is disposed at the extension end of the longitudinal material blocking cylinder.

[0012] Furthermore, the material limiting mechanism includes a material limiting adjustment module and multiple material limiting plates. The material limiting adjustment module is installed on the loading rack, and the multiple material limiting plates are all slidably connected to the loading rack along the longitudinal direction and are driven to slide by the material limiting adjustment module.

[0013] Furthermore, the top material mechanism includes a top material cylinder and multiple top material inclined blocks. The top material cylinder is installed on the loading frame, and one of the top material inclined blocks is installed at the telescopic end of the top material cylinder and can be driven by the top material cylinder to slide vertically on the loading frame. The remaining top material inclined blocks are connected to the one top material inclined block through a transmission module to achieve synchronization.

[0014] Furthermore, the feeding device also includes anti-stacking mechanisms at both ends of the feeding frame. The anti-stacking mechanism includes an anti-stacking cylinder and an anti-stacking block. The anti-stacking cylinder is located on the feeding frame, and the anti-stacking block is located at the telescopic end of the anti-stacking cylinder and can be driven to lift and lower by the anti-stacking cylinder to prevent the conduit from stacking on the single-pipe feeding channel.

[0015] The present invention provides a conduit inner hole painting production line, which, compared with the prior art, uses a first painting device to spray paint from the first end of the conduit, and then uses a second painting device to spray paint from the second end of the conduit. This ensures that all parts of the inner hole are fully covered with anti-corrosion coating, thereby avoiding the missed spraying phenomenon that may occur with one-sided painting, and better protecting the conduit from external environmental corrosion. Attached Figure Description

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

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

[0018] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;

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

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

[0021] Figure 6 yes Figure 5 A magnified structural diagram of part B in the middle section;

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

[0023] Figure 8 This is a three-dimensional structural diagram of the feeding device after some parts have been hidden.

[0024] Figure 9 yes Figure 8 A magnified structural diagram of section C;

[0025] Figure 10 yes Figure 8 A magnified structural diagram of section D in the middle;

[0026] Figure 11 yes Figure 8 A magnified structural diagram of section E in the middle;

[0027] Figure 12 This is a three-dimensional structural diagram of the conveying device.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Feeding device; 11. Feeding rack; 111. Feeding inclined section; 112. Feeding limit plate; 113. Lower inclined plate for material passing through; 12. Feeding belt; 13. Distributing conveyor belt; 14. Material blocking adjustment mechanism; 141. Adjusting plate; 142. Vertical material blocking cylinder; 143. Vertical material blocking plate; 144. Longitudinal material blocking cylinder; 145. Longitudinal material blocking plate; 146. Stroke adjusting nut; 15. Material limiting mechanism; 151. Material limiting adjustment module; 152. Material limiting plate; 16. Material ejection mechanism; 161. Material ejection cylinder; 162. Lower inclined block for material ejection; 17. Single-pipe material drop channel; 18. Single-pipe feeding channel; 19. Anti-stacking mechanism; 191. Anti-stacking cylinder; 192. Anti-stacking block;

[0030] 2. Conveying device; 21. Conveying frame; 22. Conveying belt; 23. Pipe 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. Jacking trough;

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

[0033] 5. Second painting device. Detailed Implementation

[0034] The present invention will be described in detail below with reference to specific embodiments.

[0035] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.

[0036] This utility model provides a production line for spray painting the inner hole of a conduit, such as... Figures 1 to 12As shown, it includes a feeding device 1, a conveying device 2, a transfer device 3, a first painting device 4, and a second painting device 5. The first painting device 4 and the second painting device 5 are arranged opposite each other on the transverse sides of the transfer device 3. Both the first painting device 4 and the second painting device 5 are provided with painting stations, and the painting stations of the first painting device 4 and the second painting device 5 are staggered. The feeding device 1 is used to feed the conduit to the conveying device 2, the conveying device 2 is used to convey the conduit one by one, and the transfer device 3 is used to transfer the conduit on the conveying device 2 to the painting station of the first painting device 4. It can transfer the conduit at the painting station of the first painting device 4 to the painting station of the second painting device 5 and transfer the conduit at the painting station of the second painting device 5 to the next process. The painting component of the first painting device 4 can extend into the conduit from the first end to paint a part of the inner hole of the conduit, and the painting component of the second painting device 5 can extend into the conduit from the second end to paint another part of the inner hole of the conduit. The sum of the lengths of the painting components of the first painting device 4 and the second painting device 5 is greater than the length of the conduit.

[0037] Based on the above structural configuration, the first painting device 4 extends into the conduit from the first end of the conduit for painting, and the second painting device 5 extends into the conduit from the second end of the conduit for painting. This ensures that all parts of the inner hole are fully covered with anti-corrosion coating, thereby avoiding the possibility of missed spraying caused by one-sided painting and better protecting the conduit from external environmental corrosion.

[0038] In this embodiment, both the first painting device 4 and the second painting device 5 include a painting frame 41 and a painting propulsion mechanism 42 and a painting side clamping mechanism 43 disposed on the painting frame 41. The painting frame 41 is provided with multiple tube clamps 411. The painting side clamping mechanism 43 is used to fix the conduit to the tube clamp 411. The painting propulsion mechanism 42 is disposed at the painting station and is used to paint the conduit on the tube clamp 411. The painting propulsion mechanism 42 includes a propulsion drive module 421, a propulsion block 422, and a spray gun 423. The propulsion drive module 421 is disposed on the painting frame 41. The propulsion block 422 is slidably connected to the painting frame 41 laterally and is driven to slide by the propulsion drive module 421. Multiple spray guns 423 are disposed on the propulsion block 422. Multiple spray guns 423 can simultaneously paint the inner holes of multiple conduits, thereby significantly shortening the painting time and improving the overall painting efficiency.

[0039] In this embodiment, the paint spraying side clamping mechanism 43 includes a side clamping plate 431, a side clamping cylinder 432, a pressing block 433, a side clamping block 434, and a guide post 435. The side clamping plate 431 is disposed on the paint spraying frame 41, the side clamping cylinder 432 is disposed on the side clamping plate 431, the side clamping block 434 is provided with a plurality of tube clamping grooves 436, the pressing block 433 and the side clamping block 434 are both disposed on 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 conduit is pressed by the pressing block 433 against the tube clamping seat 411 and limited by the side clamping block 434 in the tube clamping groove 436. One end of the guide post 435 is slidably connected to the side clamping plate 431, and the other end is disposed on the pressing block 433. The guide post 435 can extend and fall with the rising and falling of the pressing block 433. The paint spraying side clamp mechanism 43 can effectively fix the conduit, thereby preventing the conduit from shifting or shaking during the paint spraying process, and ensuring the stability and uniformity of the paint spraying.

[0040] In this embodiment, both the first painting device 4 and the second painting device 5 further include a paint mist suction mechanism 44, which is disposed on the side clamping plate 431. When the paint propulsion mechanism 42 of the first painting device 4 paints the inner hole of the conduit, the paint mist suction mechanism 44 of the second painting device 5 suctions paint mist from the other end of the conduit. Conversely, when the paint propulsion mechanism 42 of the second painting device 5 paints the inner hole of the conduit, the paint mist suction mechanism 44 of the first painting device 4 suctions paint mist from the other end of the conduit. The paint mist suction mechanism 44 can collect the paint mist generated during the painting process, preventing the paint mist from accumulating inside the pipe and spreading into the air, thus reducing air pollution.

[0041] In this embodiment, the conveying device 2 includes a conveying frame 21 and a conveying conveyor belt 22 disposed on the conveying frame 21; the conveying conveyor belt 22 is provided with a tube holder 23, which can receive the threaded tubes falling one by one from the feeding device 1, thereby realizing the single-tube transportation of the threaded tubes.

[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 disposed on the transfer frame 31. Two sets of transfer assemblies 33 are provided, and both sets of transfer assemblies 33 are slidably connected to the transfer frame 31 along the longitudinal 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 slidably connected to the transfer frame 31 along the longitudinal direction. The lifting cylinder 332 is disposed on the transfer plate 331. The lifting plate 333 is disposed 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 multiple jacking slots 334, which can lift the conduit on the conduit seat 23. During the transfer of the conduit, the transfer drive module 32 drives the transfer component 33 to the conveying device 2. Then, the lifting cylinder 332 drives the lifting plate 333 to rise. The lifting plate 333 simultaneously lifts the conduit on the tube holder 23 of the conveying device 2, the conduit on the first painting device 4 and the second painting device 5. Then, the transfer drive module 32 drives the transfer component 33 to the painting station of the first painting device 4. The lifting cylinder 332 then drives the lifting plate 333 to descend and place the conduit on the tube groove 334 into the tube clamp 411 on the painting station of the first painting device 4, the tube clamp 411 on the painting station of the second painting device 5, and the next process, thereby completing the transfer operation of the conduit, significantly shortening the total time required for painting and greatly improving production efficiency.

[0043] In this embodiment, the feeding device 1 includes a feeding frame 11 and a feeding belt 12, a distributing conveyor belt 13, a material blocking adjustment mechanism 14, a material limiting mechanism 15, and a material lifting mechanism 16 disposed on the feeding frame 11. The feeding frame 11 has a feeding inclined section 111 and a feeding limiting plate 112 at its two transverse ends. The feeding inclined section 111 is provided with a material passing 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... A single-tube feeding channel 18 is formed between the material limiting plates 112. The single-tube dropping channel 17 and the single-tube feeding channel 18 form an inclined L-shape. The baffle adjustment mechanism 14 is slidably connected longitudinally above the distribution conveyor belt 13 and can guide the threaded tubes one by one into the single-tube dropping channel 17. The limiting mechanism 15 and the top-loading mechanism 16 are both located near the conveying device 2. The top-loading mechanism 16 is used to push the threaded tubes into the single-tube feeding channel 18 and into the lower inclined plate 113. Through the above structural design, the threaded tubes fall from the feeding belt 12 to the distribution conveyor belt 13. Under the action of the baffle adjustment mechanism 14 and the distribution conveyor belt 13, the threaded tubes can enter the single-tube dropping channel 17 in an orderly manner. Then, under the action of the top-loading mechanism 16, they enter the single-tube feeding channel 18 from the single-tube dropping channel 17 and finally pass through the lower inclined plate 113 to the conveying device 2.

[0044] In this embodiment, the material blocking adjustment mechanism 14 includes an adjustment plate 141 and material blocking components disposed at both ends of the adjustment plate 141 laterally. The material blocking components include 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 slidably connected to the loading rack 11 along the longitudinal direction. The vertical material blocking cylinder 142 and the longitudinal material blocking cylinder 144 are both disposed on the adjustment plate 141. The vertical material blocking cylinder 142 is provided with a stroke adjusting nut 146. The longitudinal base position of the longitudinal material blocking cylinder 144 and the vertical base position of the vertical material blocking cylinder 142 are adjusted by the adjustment plate 141 and the stroke adjusting nut 146 to accommodate conduits of different sizes. The vertical material blocking plate 143 is disposed at the telescopic end of the vertical material blocking cylinder 142, and the longitudinal material blocking plate 145 is disposed at the telescopic end of the longitudinal material blocking cylinder 144. The combined action of the vertical baffle cylinder 142 and the longitudinal baffle cylinder 144 ensures that the conduit pipes can pass through the material distribution conveyor belt 13 in an orderly manner, greatly improving the conveying efficiency.

[0045] In this embodiment, the material limiting mechanism 15 includes a material limiting adjustment module 151 and multiple material limiting plates 152. The material limiting adjustment module 151 is disposed on the feeding rack 11. The multiple material limiting plates 152 are all slidably connected to the feeding rack 11 along the longitudinal direction and are driven to slide by the material limiting adjustment module 151 to adjust the size of the single tube feeding channel 18 to accommodate different sizes of conduit tubes.

[0046] In this embodiment, the top material mechanism 16 includes a top material cylinder 161 and multiple top material lower inclined blocks 162. The top material cylinder 161 is installed on the upper material frame 11. One of the top material lower inclined blocks 162 is installed at the telescopic end of the top material cylinder 161 and can be driven by the top material cylinder 161 to slide vertically on the upper material frame 11. The remaining top material lower inclined blocks 162 are connected to the aforementioned top material lower inclined block 162 by means of a transmission module (the transmission module is a combination of rack, gear and transmission rod. When one top material lower inclined block 162 moves, it drives the rack to move. The rack drives the gear to rotate. Then, through the transmission rod, the gear and rack on the other top material lower inclined block 162 perform the same movement to achieve synchronization). This enables all the top material lower inclined blocks 162 to rise and fall together. When it is necessary to feed the conduit to the conveying device 2, the top material cylinder 161 drives the top material inclined block 162 to rise so as to push the conduit in the single tube dropping channel 17 into the single tube feeding channel 18 until the conduit can fall to the material passing inclined plate 113.

[0047] In this embodiment, the feeding device 1 further includes anti-stacking mechanisms 19 disposed at both ends of the feeding frame 11. The anti-stacking mechanism 19 includes an anti-stacking cylinder 191 and an anti-stacking block 192. The anti-stacking cylinder 191 is disposed on the feeding frame 11, and the anti-stacking block 192 is disposed 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 conduit from stacking on the single-tube feeding channel 18. The anti-stacking mechanism 19 effectively prevents the conduit from accumulating on the single-tube dropping channel 17, making it easier and faster for the top feeding mechanism 16 to lift the conduit from the single-tube dropping channel 17 to the single-tube feeding channel 18, thus improving feeding efficiency.

[0048] In summary, this type of conduit inner hole painting production line can solve the problem of missed spraying caused by the single-sided painting method used in the existing technology for conduit inner hole painting.

[0049] Where there is no conflict, the above embodiments and features can be combined with each other.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A conduit inner hole painting production line, characterized in that: The system includes a feeding device (1), a conveying device (2), a transfer device (3), a first painting device (4), and a second painting device (5). The first painting device (4) and the second painting device (5) are arranged opposite each other on the transverse sides of the transfer device (3). Both the first painting device (4) and the second painting device (5) are equipped with painting stations, and the painting stations of the first painting device (4) and the second painting device (5) are staggered. The feeding device (1) is used to feed the conduit to the conveying device (2). The conveying device (2) is used to convey the conduit one by one. The transfer device (3) is used to transfer the conduit on the conveying device (2) to the first painting device. The painting station of the device (4) can transfer the conduit on the painting station of the first painting device (4) to the painting station of the second painting device (5) and transfer the conduit on the painting station of the second painting device (5) to the next process. The painting component of the first painting device (4) can extend into the conduit from the first end to paint a part of the inner hole of the conduit. The painting component of the second painting device (5) can extend into the conduit from the second end to paint another part of the inner hole of the conduit. The sum of the lengths of the painting component of the first painting device (4) and the painting component of the second painting device (5) is greater than the length of the conduit.

2. The conduit inner hole painting production line according to claim 1, characterized in that: The first painting device (4) and the second painting device (5) both include a painting frame (41) and a painting propulsion mechanism (42) and a painting side clamping mechanism (43) provided on the painting frame (41); the painting frame (41) is provided with multiple pipe clamps (411), the painting side clamping mechanism (43) is used to fix the conduit to the pipe clamp (411), and the painting propulsion mechanism (42) is provided at the painting station and is used to paint the conduit on the pipe clamp (411); The paint spraying propulsion mechanism (42) includes a propulsion drive module (421), a propulsion block (422), and a spray gun (423). The propulsion drive module (421) is installed on the paint spraying frame (41), the propulsion block (422) is slidably connected to the paint spraying frame (41) in the lateral direction and is driven to slide by the propulsion drive module (421), and multiple spray guns (423) are provided and are all installed on the propulsion block (422).

3. The conduit inner hole painting production line according to claim 2, characterized in that: The side clamping mechanism (43) for spraying paint includes a side clamping plate (431), a side clamping cylinder (432), a clamping block (433), a side clamping block (434), and a guide post (435). The side clamping plate (431) is mounted on the spraying frame (41), the side clamping cylinder (432) is mounted on the side clamping plate (431), the side clamping block (434) is provided with multiple clamping slots (436), and both the clamping block (433) and the side clamping block (434) are mounted on the side clamping plate (435). The telescopic end of the clamping cylinder (432) can be driven to rise and fall by the side clamping cylinder (432) so that the conduit is pressed by the clamping block (433) on the clamping seat (411) and limited by the side clamping block (434) in the clamping groove (436). One end of the guide post (435) is slidably connected to the side clamping plate (431), and the other end is set on the clamping block (433). The guide post (435) can extend and fall with the rise and fall of the clamping block (433).

4. The conduit inner hole painting production line according to claim 3, characterized in that: Both the first painting device (4) and the second painting device (5) further include a paint mist suction mechanism (44). The paint mist suction mechanism (44) is installed on the side clamp (431). When the paint spraying propulsion mechanism (42) of the first painting device (4) sprays paint on the inner hole of the conduit, the paint mist suction mechanism (44) of the second painting device (5) performs paint mist suction treatment on the inner hole of the conduit from the other end of the conduit. When the paint spraying propulsion mechanism (42) of the second painting device (5) sprays paint on the inner hole of the conduit, the paint mist suction mechanism (44) of the first painting device (4) performs paint mist suction treatment on the inner hole of the conduit from the other end of the conduit.

5. The conduit inner hole painting production line according to claim 1, characterized in that: The conveying device (2) includes a conveying frame (21) and a conveying belt (22) set on the conveying frame (21); the conveying belt (22) is provided with a pipe seat (23), which can receive the threaded pipe falling from the feeding device (1) one by one; 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 installed on the transfer frame (31), and two sets of transfer assemblies (33) are provided. The two sets of transfer assemblies (33) are slidably connected to the transfer frame (31) along the longitudinal 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 slidably connected to the transfer frame (31) along the longitudinal direction. The lifting cylinder (332) is installed on the transfer plate (331), and the lifting plate (333) is installed 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 multiple jacking slots (334), and the jacking slots (334) can lift the conduit on the pipe holder (23).

6. The conduit inner hole painting production line according to claim 1, characterized in that: The feeding device (1) includes a feeding frame (11) and a feeding belt (12), a distributing conveyor belt (13), a material blocking adjustment mechanism (14), a material limiting mechanism (15), and a material lifting mechanism (16) installed on the feeding frame (11). 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 material passing inclined plate (113). A single-pipe 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 plate (16) are connected. A single-tube feeding channel (18) is formed between the position plates (112), and the single-tube dropping channel (17) and the single-tube feeding channel (18) form an inclined L-shape; the baffle adjustment mechanism (14) is slidably connected to the upper part of the material distribution conveyor belt (13) along the longitudinal direction and can enter the wire tube one by one into the lower feeding inclined section (111); the limiting mechanism (15) and the top material mechanism (16) are both set near the conveying device (2), and the top material mechanism (16) is used to push the wire tube into the single-tube feeding channel (18) and into the material passing lower inclined plate (113).

7. The conduit inner hole painting production line according to claim 6, characterized in that: The material blocking adjustment mechanism (14) includes an adjustment plate (141) and material blocking components disposed at both ends of the adjustment plate (141) laterally; the material blocking components include 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 slidably connected to the loading rack (11) along the longitudinal direction, the vertical material blocking cylinder (142) and the longitudinal material blocking cylinder (144) are both disposed 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 disposed at the telescopic end of the vertical material blocking cylinder (142), and the longitudinal material blocking plate (145) is disposed at the telescopic end of the longitudinal material blocking cylinder (144).

8. The conduit inner hole painting production line according to claim 6, characterized in that: The material limiting mechanism (15) includes a material limiting adjustment module (151) and multiple material limiting plates (152). The material limiting adjustment module (151) is set on the loading rack (11), and the multiple material limiting plates (152) are all slidably connected to the loading rack (11) along the longitudinal direction and are driven to slide by the material limiting adjustment module (151).

9. The conduit inner hole painting production line according to claim 6, characterized in that: The top material mechanism (16) includes a top material cylinder (161) and multiple top material inclined blocks (162). The top material cylinder (161) is installed on the upper frame (11). One of the top material inclined blocks (162) is installed at the telescopic end of the top material cylinder (161) and can be driven by the top material cylinder (161) to slide vertically on the upper frame (11). The remaining top material inclined blocks (162) are connected to the one top material inclined block (162) through a transmission module to achieve synchronization.

10. The conduit inner hole painting production line according to claim 6, characterized in that: The feeding device (1) also includes anti-stacking mechanisms (19) set at both ends of the feeding frame (11). The anti-stacking mechanism (19) includes an anti-stacking cylinder (191) and an anti-stacking block (192). The anti-stacking cylinder (191) is set at the feeding frame (11), and the anti-stacking block (192) is set at the telescopic end of the anti-stacking cylinder (191) and can be driven to lift and lower by the anti-stacking cylinder (191) to prevent the conduit from stacking on the single-pipe feeding channel (18).

Images