Powder spraying equipment for interior of pipeline

Abstract

The invention discloses powder spraying equipment for the interior of a pipeline, and belongs to the field of powder spraying equipment. The powder spraying equipment comprises a base, a rail groove is formed in the top end face of the base, a linear guide rail is fixedly connected into the rail groove, and five linear motors are movably connected to the top end of the linear guide rail; the top ends of the two linear motors close to the two ends of the linear guide rail are fixedly connected with a clamping rotating mechanism and a powder spraying mechanism correspondingly. A halfpace is arranged outside the base, a through groove allowing the base to penetrate through is formed in the bottom end face of the halfpace, a feeding port is formed in the top end face of the halfpace, inclined guide grooves are symmetrically formed in the inner walls of the two sides of the feeding port, an inclined receiving groove is formed in one end of each inclined guide groove, and a receiving mechanism is arranged in each inclined receiving groove. And a material guide mechanism is arranged below the inclined material guide groove. The automatic feeding and collecting device is high in automation degree, automatic feeding and collecting can be achieved, and the situation that pipelines collide with one another and are damaged in the collecting process can be avoided.

Description

Technical Field

[0001] The invention relates to the field of powder spraying equipment, in particular to a pipeline internal powder spraying equipment. Background Art

[0002] Pipelines are widely used for various transportation, including gas, water resources, etc., and the main reason for spraying powder inside the pipeline is to prevent corrosion. Corrosion is extremely harmful to metal pipelines. Even if the external coating is good and the external anti-corrosion process is advanced, if internal anti-corrosion is not performed, the pipeline may still be scrapped prematurely due to corrosion. Therefore, it is necessary to spray protective materials on the inner wall of the pipeline.

[0003] The existing internal spraying equipment for pipelines has certain defects when in use. The degree of automation is not high enough, and automatic loading and receiving of materials cannot be realized. In addition, the pipelines are easily damaged by collision with each other during the receiving process.

[0004] Therefore, those skilled in the art provide a pipeline internal powder spraying device to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a pipeline internal powder spraying device with a high degree of automation, which can not only realize automatic loading and receiving of materials, but also prevent the pipelines from being damaged by collision during the receiving process, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A pipeline internal powder spraying device comprises a base, a top surface of the base is provided with a track groove, a linear guide is fixedly connected inside the track groove, the top of the linear guide is movably connected with five linear motors, wherein the tops of two linear motors near the two ends of the linear guide are respectively fixedly connected with a clamping rotation mechanism and a powder spraying mechanism;

[0008] A step is provided on the outside of the base, and a through groove for the base to pass through is provided on the bottom end surface of the step, a feed port is provided on the top surface of the step, and inclined material guide grooves are symmetrically provided on the inner walls on both sides of the feed port, an inclined material receiving groove is provided at one end of the inclined material guide groove, and a material receiving mechanism is provided inside the inclined material receiving groove, a material guiding mechanism is provided below the inclined material guide groove, a material receiving detection mechanism is provided below the feed port, and a loading mechanism is provided above the feed port.

[0009] As a further scheme of the present invention: the material receiving mechanism specifically includes: a flip plate movably connected to the inside of the oblique material receiving trough, the inner side surface of the flip plate is fixedly connected with a material receiving frame, and a material receiving trough is provided between the material receiving frame and the flip plate, a rubber pad is embedded on the bottom end surface of the material receiving trough, and a rectangular groove is provided on the inner wall of one side of the material receiving trough, a plurality of evenly distributed L-shaped plates are rotatably connected inside the rectangular groove along its oblique height direction, and an axle rod passes through and is fixedly connected inside the L-shaped plate, rotating cavities are provided on both sides of the rectangular groove, two ends of the axle rod respectively pass through the corresponding rotating cavities and are sleeved with a spiral spring, and the two ends of the spiral spring are respectively fixedly connected to the outer side surface of the axle rod and the inner wall of the rotating cavity.

[0010] As a further solution of the present invention: a first strong magnet is embedded in one side of the material receiving frame, a second strong magnet is embedded in the position of the inner wall of one side of the inclined material receiving trough corresponding to the first strong magnet, and the first strong magnet and the second strong magnet are magnetically adsorbed together.

[0011] As a further solution of the present invention: a silicone pad is fixedly connected to the inner side surface of the L-shaped plate.

[0012] As a further solution of the present invention: the material receiving detection mechanism specifically includes: three parallel lifting cylinders, the three lifting cylinders are respectively fixed on the top of three linear motors near the middle position on the linear guide rail, and the top output shaft of the lifting cylinder is fixedly connected with a U-shaped frame, and the inner side surface of the middle U-shaped frame is embedded with an ultrasonic sensor probe.

[0013] As a further solution of the present invention: the material guiding mechanism specifically includes: two rotating grooves arranged in parallel below the inner wall of the feed port, a rotating plate rotatably connected inside the rotating groove, and a rotating motor is embedded in the inner wall of one side of the rotating groove, the output shaft of the rotating motor is fixedly connected to the rotating plate, and the rotating plates on both sides of the feed port are staggered with each other and are not in the same vertical plane with the three lifting cylinders.

[0014] As a further solution of the present invention: the feeding mechanism specifically includes: a feeding box fixed on the top of the platform, a feeding cavity is opened inside the feeding box, and push plates are movably connected to both sides of the feeding cavity, pushing cylinders are embedded in both side surfaces of the feeding box, and the output shafts of the pushing cylinders are fixedly connected to the corresponding push plates, a discharge port is opened at the bottom end surface of the feeding cavity corresponding to the feed port, and telescopic cylinders are symmetrically embedded in the inner walls on both sides of the discharge port, and the output shafts of the telescopic cylinders are fixedly connected to the discharge plates.

[0015] As a further solution of the present invention: the clamping and rotating mechanism specifically includes: a support seat fixed at the top of the leftmost linear motor, a three-jaw chuck movably connected to one side of the support seat, and a drive motor fixedly connected to the other side of the support seat, and the drive motor and the three-jaw chuck are connected via a pulley transmission.

[0016] As a further solution of the present invention: the powder spraying mechanism specifically includes: a fixed seat fixed at the top of the rightmost linear motor, a through-type stepper motor is fixedly connected to the top of the fixed seat, and a through-type stepper screw is provided inside the through-type stepper motor, one end of the through-type stepper screw is fixedly connected to a spray gun, and the other end of the through-type stepper screw is provided with a cavity connected to the spray gun.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present application not only realizes automatic loading and receiving of materials, but also prevents the pipelines from being damaged by collision with each other during the receiving process, through the provision of a clamping and rotating mechanism, a powder spraying mechanism, a feeding mechanism, a receiving mechanism, a material guiding mechanism and a material receiving and detecting mechanism, and has a high degree of automation.

[0019] 2. The present application sets up a material receiving mechanism, which can orderly stack the finished pipes in the receiving trough, and use a rotatable L-shaped plate to buffer the impact of the finished pipes rolling down during the material receiving process. At the same time, the adjacent finished pipes are separated by the L-shaped plate to avoid collision. After the finished pipes are full, the finished pipes can be taken out in sequence by opening the flip plate, which is convenient for use.

[0020] 3. The present application sets a silicone pad on the inner side of the L-shaped plate. The silicone pad can not only improve the buffering effect on the finished pipe, but also protect the outer wall of the finished pipe.

[0021] 4. The material receiving and detecting mechanism set up in this application can detect the quality of the internal coating of the pipeline after spraying is completed to determine whether it is qualified. In conjunction with the material guiding mechanism, the qualified and unqualified finished pipelines can be respectively guided into different inclined material guiding troughs, thereby realizing the material separation of the finished pipelines for easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a pipeline internal powder spraying equipment;

[0023] Figure 2 The figure is an internal view of a step platform in a pipeline internal powder spraying device;

[0024] Figure 3 The figure is an internal view of a feeding box in a pipeline internal powder spraying device;

[0025] Figure 4 It is a structural schematic diagram of a clamping and rotating mechanism in a pipeline internal powder spraying device;

[0026] Figure 5 It is a structural schematic diagram of a material receiving mechanism in a pipeline internal powder spraying device;

[0027] Figure 6It is an internal view of a receiving trough in a pipeline internal powder spraying device;

[0028] Figure 7 A combined view of a rectangular slot and a rotating chamber in a pipeline internal powder spraying device;

[0029] Figure 8 This is a view of the combination of an L-shaped plate and a finished pipe in a pipe internal powder spraying device.

[0030] In the figure: 1. base; 2. track groove; 3. linear guide; 4. linear motor; 5. support seat; 6. fixed seat; 7. drive motor; 8. three-jaw chuck; 9. through-type stepper motor; 10. through-type stepper screw; 11. spray gun; 12. ladder platform; 13. through slot; 14. feeding box; 15. feeding cavity; 16. push plate; 17. push cylinder; 18. discharge port; 19. telescopic cylinder; 20. discharge plate; 21. feed port; 22. oblique guide trough; 23. oblique material receiving trough; 24. flip plate; 25. rotating trough; 26. rotating motor; 27. rotating plate; 28. lifting cylinder; 29. ​​U-shaped frame; 30. ultrasonic sensor probe; 31. second strong magnet; 32. material receiving frame; 33. material receiving trough; 34. first strong magnet; 35. rubber pad; 36. rectangular trough; 37. L-shaped plate; 38. shaft rod; 39. silicone pad; 40. rotating chamber; 41. scroll spring; 42. finished product pipeline. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] As mentioned in the background technology of this application, the inventors have discovered through research that the existing internal pipe spraying equipment is not sufficiently automated during use and is unable to achieve automatic loading and receiving of materials. In addition, the pipes are easily damaged by collision with each other during the receiving process, which results in certain defects.

[0033] In order to solve the above-mentioned defects, the present application discloses a pipeline internal powder spraying equipment with a high degree of automation. It can not only realize automatic loading and receiving of materials, but also prevent the pipelines from being damaged by collision during the receiving process.

[0034] The following will describe in detail how the solution of the present application solves the above technical problems in conjunction with the accompanying drawings.

[0035] See also Figures 1 to 8In an embodiment of the present invention, a pipeline internal powder spraying device includes a base 1, a track groove 2 is provided on the top surface of the base 1, and a linear guide 3 is fixedly connected inside the track groove 2, and five linear motors 4 are movably connected to the top of the linear guide 3, wherein the tops of two linear motors 4 near the two ends of the linear guide 3 are respectively fixedly connected to a clamping and rotating mechanism and a powder spraying mechanism; a step platform 12 is provided on the outside of the base 1, and a through groove 13 is provided on the bottom end surface of the step platform 12 for the base 1 to pass through, a feed port 21 is provided on the top surface of the step platform 12, and oblique material guide grooves 22 are symmetrically provided on the inner walls on both sides of the feed port 21, an oblique material receiving groove 23 is provided at one end of the oblique material guide groove 22, and a material receiving mechanism is provided inside the oblique material receiving groove 23, a material guiding mechanism is provided below the oblique material guide groove 22, a material receiving detection mechanism is provided below the feed port 21, and a loading mechanism is provided above the feed port 21. The present application not only realizes automatic loading and receiving of materials, but also prevents the pipes from colliding with each other and being damaged during the receiving process by setting up a clamping and rotating mechanism, a powder spraying mechanism, a feeding mechanism, a receiving mechanism, a material guiding mechanism and a material receiving detection mechanism, and has a high degree of automation.

[0036] In this embodiment, the material receiving mechanism specifically includes: a flip plate 24 movably connected to the inside of the oblique material receiving trough 23, the inner side surface of the flip plate 24 is fixedly connected with a material receiving frame 32, and a material receiving trough 33 is provided between the material receiving frame 32 and the flip plate 24, and a rubber pad 35 is embedded in the bottom end surface of the material receiving trough 33 to reduce the impact force of the finished pipe 42 falling to the bottom, and a rectangular groove 36 is opened on the inner wall of one side of the material receiving trough 33, and a plurality of evenly distributed L-shaped plates 37 are rotatably connected to the inside of the rectangular groove 36 along its oblique height direction, and a shaft rod 38 is penetrated and fixedly connected to the inside of the L-shaped plate 37, and a rotating cavity 40 is opened on both sides of the rectangular groove 36, and the two ends of the shaft rod 38 respectively penetrate into the corresponding rotating cavity 40 and are sleeved with a spiral spring 41, and the two ends of the spiral spring 41 are respectively fixedly connected to the outer side surface of the shaft rod 38 and the inner wall of the rotating cavity 40. By means of the provided material receiving mechanism, the finished pipes 42 can be orderly stacked in the receiving trough 33, and during the material receiving process, the rotatable L-shaped plate 37 can be used to cushion the impact force of the finished pipes 42 rolling down, and at the same time, the adjacent finished pipes 42 can be separated by the L-shaped plate 37 to avoid collision. After the finished pipes 42 are full, the finished pipes 42 can be taken out in sequence by opening the flip plate 24, which is convenient for use.

[0037] In this embodiment, a first strong magnet 34 is embedded in one side of the material receiving frame 32, and a second strong magnet 31 is embedded in the position of the first strong magnet 34 on the inner wall of the oblique material receiving trough 23, and the first strong magnet 34 and the second strong magnet 31 are magnetically adsorbed together. The first strong magnet 34 and the second strong magnet 31 are used together to prevent the material receiving frame 32 from moving at will.

[0038] In this embodiment, a silicone pad 39 is fixedly connected to the inner side of the L-shaped plate 37. The silicone pad 39 can not only improve the buffering effect on the finished pipe 42, but also protect the outer wall of the finished pipe 42.

[0039] In this embodiment, the material receiving and detecting mechanism specifically includes: three parallel lifting cylinders 28, the three lifting cylinders 28 are respectively fixed on the top of the three linear motors 4 near the middle position on the linear guide 3, and the top output shaft of the lifting cylinder 28 is fixedly connected with a U-shaped frame 29, and the inner side of the middle U-shaped frame 29 is embedded with an ultrasonic sensor probe 30. The ultrasonic sensor probe 30 can collect the quality information of the internal coating of the pipeline, and send the collected information to the background control terminal. The background control terminal determines whether the internal coating of the pipeline is qualified according to the collected information according to the preset program, and issues corresponding control instructions. The material receiving and detecting mechanism can detect the quality of the internal coating of the pipeline after the spraying is completed, and determine whether it is qualified. In conjunction with the material guiding mechanism, qualified and unqualified finished pipes 42 can be respectively introduced into different inclined material guiding troughs 22, thereby realizing the material separation of the finished pipes 42, which is convenient for use.

[0040] In this embodiment, the material guiding mechanism specifically includes: two rotating grooves 25 arranged in parallel below the inner wall of the feed port 21, a rotating plate 27 is rotatably connected inside the rotating groove 25, and a rotating motor 26 is embedded in the inner wall of one side of the rotating groove 25, and the output shaft of the rotating motor 26 is fixedly connected to the rotating plate 27, and the rotating plates 27 on both sides of the feed port 21 are staggered and not in the same vertical plane as the three lifting cylinders 28. The material guiding mechanism can guide qualified and unqualified finished pipes 42 into different inclined material guiding grooves 22 respectively.

[0041] In this embodiment, the feeding mechanism specifically includes: a feeding box 14 fixed on the top of the platform 12, a feeding chamber 15 is provided inside the feeding box 14, and push plates 16 are movably connected to both sides of the feeding chamber 15, push cylinders 17 are embedded on both sides of the feeding box 14, and the output shaft of the push cylinder 17 is fixedly connected to the corresponding push plate 16, a discharge port 18 is provided at the bottom end of the feeding chamber 15 corresponding to the feed port 21, and telescopic cylinders 19 are symmetrically embedded on the inner walls on both sides of the discharge port 18, and the output shaft of the telescopic cylinder 19 is fixedly connected to the discharge plate 20. The feeding mechanism can not only sequentially release the pipes to be sprayed, but also push the pipes in the feeding chamber 15 to calibrate the position, ensuring that the pipes can pass through the discharge port 18 smoothly. When pushing the position, the two push cylinders 17 run synchronously to slowly push the two push plates 16 closer together, and then push the pipes between the two push plates 16 to the middle position to align. The two push plates 16 move away from each other to discharge materials each time according to a preset program, and only one pipe is allowed to pass each time when discharging materials. This is achieved by controlling the contraction and extension time of the telescopic cylinder 19 through a preset program.

[0042] In this embodiment, the clamping and rotating mechanism specifically includes: a support base 5 fixed to the top of the leftmost linear motor 4, a three-jaw chuck 8 movably connected to one side of the support base 5, and a driving motor 7 fixedly connected to the other side of the support base 5, and the driving motor 7 and the three-jaw chuck 8 are connected through a pulley transmission. The clamping and rotating mechanism can clamp the pipe and drive it to rotate.

[0043] In this embodiment, the powder spraying mechanism specifically includes: a fixing seat 6 fixed at the top of the rightmost linear motor 4, a through-type stepping motor 9 is fixedly connected to the top of the fixing seat 6, and a through-type stepping screw 10 is provided inside the through-type stepping motor 9, a spray gun 11 is fixedly connected to one end of the through-type stepping screw 10, and a cavity connected to the spray gun 11 is provided at the other end of the through-type stepping screw 10. The powder spraying mechanism can sequentially spray the pipeline, wherein the cavity is connected to an external high-pressure powder source.

[0044] The working principle of the present invention is as follows: when in use, first, a number of pipes to be sprayed are arranged in the feeding chamber 15, and then, the two side lifting cylinders 28 of the material receiving and detecting mechanism are operated to send the U-shaped frame 29 on the top thereof to the feeding port 21, and then, the telescopic cylinder 19 of the feeding mechanism is operated to drive the two discharge plates 20 to move away from each other to release a pipe from the discharge port 18 into the feeding port 21, and after the pipe enters the feeding port 21, it falls on the two U-shaped frames 29 under the action of its own gravity and is supported by them, and then, the two side lifting cylinders 28 are operated to lower the pipe to a certain height, and the clamping rotating mechanism and the powder spraying mechanism are moved to the two ends of the pipe along the linear guide 3 through the linear motor 4. Then, one end of the pipe is held by the through-type stepping motor 9 of the powder spraying mechanism, and the spray gun 11 on the through-type stepping screw 10 extends into the interior of the pipe, and the three-jaw chuck 8 of the clamping rotating mechanism clamps the other end of the pipe, and after the three-jaw chuck 8 clamps the pipe. The powder spraying mechanism moves back a certain distance so that the through-type stepping motor 9 no longer abuts against the end of the pipeline, and the two U-shaped frames 29 originally supporting the pipeline also descend and return to the initial position under the operation of the corresponding lifting cylinders 28.

[0045] Subsequently, the driving motor 7 of the clamping rotating mechanism is operated to drive the three-jaw chuck 8 to rotate, and then drive the pipeline to rotate. At the same time, the external high-pressure powder enters the spray gun 11 from the cavity, and is ejected from the spray gun 11 to be sprayed on the inner wall of the pipeline. During the process, the through-type stepper motor 9 is operated, and the through-type stepper screw 10 slowly penetrates into the interior of the pipeline along the through-type stepper motor 9, and the inner wall of the pipeline is sprayed in all aspects in coordination with the rotation of the pipeline. After the spraying is completed, the powder spraying mechanism returns to the initial position, and the middle lifting cylinder 28 is operated to lift the U-shaped frame 29 on its top, so that the ultrasonic sensor probe 30 on the U-shaped frame 29 contacts the pipeline. The ultrasonic sensor probe 30 collects the quality information of the internal coating of the pipeline and sends the collected information to the background control terminal. The background control terminal judges whether the internal coating of the pipeline is qualified according to the collected information according to the preset program, and issues corresponding control instructions. In addition, in order to ensure the accuracy of information collection by the ultrasonic sensor probe 30, during the collection process, the clamping rotation mechanism drives the pipe to rotate slowly, and the linear motor 4 under the ultrasonic sensor probe 30 moves left and right along the linear guide rail 3, and the linear motors 4 under the other two U-shaped frames 29 also move a certain distance along the linear guide rail 3 to leave enough space for the ultrasonic sensor probe 30. After the information collection is completed, the material receiving detection mechanism returns to the initial position.

[0046] If the internal coating of the pipeline is qualified, the two side lifting cylinders 28 of the material receiving and detecting mechanism will operate to lift the U-shaped frame 29 on its top to support the finished pipeline 42. Subsequently, the three-jaw chuck 8 releases the finished pipeline 42, and the clamping rotating mechanism returns to its initial position, while the two side U-shaped frames 29 support the finished pipeline 42 and continue to rise to the feed port 21. At this time, the material guiding mechanism on one side of the feed port 21 operates to send the finished pipeline 42 into the inclined material guiding trough 22 above.

[0047] If the internal coating of the pipeline is unqualified, the two side lifting cylinders 28 of the material receiving and detecting mechanism will operate to lift the U-shaped frame 29 on its top to support the finished pipeline 42. Subsequently, the three-jaw chuck 8 releases the finished pipeline 42, and the clamping rotating mechanism returns to its initial position, while the two side U-shaped frames 29 support the finished pipeline 42 and continue to rise to the feed port 21. At this time, the material guiding mechanism on the other side of the feed port 21 operates to send the finished pipeline 42 into the inclined material guiding trough 22 above.

[0048] It should be noted that the specific operation process of the material guide mechanism is that the rotating motor 26 drives the rotating plate 27 to rotate, and the rotating plate 27 rotates out from the rotating groove 25 until it is against the finished product pipe 42. As the rotating plate 27 continues to rotate out, the rotating plate 27 lifts the finished product pipe 42 and enters the inclined material guide groove 22 above it along the slope formed by the rotating plate 27. After the finished product pipe 42 enters the inclined material guide groove 22, the finished product pipe 42 falls into the lower receiving groove 33 along the inclined material guide groove 22 under the action of its own gravity. During the process, the finished product pipe 42 collides with the L-shaped plate 37, causing the L-shaped plate 37 to rotate to play a buffering effect, and the shaft 38 also rotates to drive the volute spring 41 to roll up and accumulate elastic potential energy. After the finished product pipe 42 passes through the L-shaped plate 37, the volute spring 41 corresponding to the L-shaped plate 37 releases the elastic potential energy to restore the L-shaped plate 37 to its original position to wait for the buffering of the next finished product pipe 42, and the silicone pad 39 on the L-shaped plate 37 has a further buffering effect on the finished product pipe 42. The finished product pipe 42 continues to roll down until it falls at the bottom of the receiving trough 33. Figure 8 As shown, the bottom finished product pipe 42 drives the bottom L-shaped plate 37 to rotate 90 degrees, so that there is an additional layer of partition formed by the L-shaped plate 37 above the bottom finished product pipe 42. When the next finished product pipe 42 falls into the receiving trough 33, the finished product pipe 42 cannot contact the bottom finished product pipe 42. Similarly, every time a finished product pipe 42 enters the receiving trough 33, there is an additional L-shaped plate 37 inside it that rotates 90 degrees until all L-shaped plates 37 have completed the rotation, and the finished product pipes 42 in the receiving trough 33 will not contact or collide due to the isolation of the L-shaped plate 37. After the finished product pipes 42 are full, the material can be taken out by opening the flip plate 24. It should be noted that after the flip plate 24 is flipped outward, the staff can take out the finished product pipes 42 from both sides of the receiving trough 33 from top to bottom in sequence.

[0049] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0050] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pipeline internal powder spraying device, characterized in that: The invention comprises a base (1), wherein a track groove (2) is formed on the top surface of the base (1), and a linear guide rail (3) is fixedly connected inside the track groove (2), and five linear motors (4) are movably connected to the top of the linear guide rail (3), wherein the tops of two linear motors (4) close to the two ends of the linear guide rail (3) are respectively fixedly connected to a clamping rotation mechanism and a powder spraying mechanism; The base (1) is provided with a step platform (12) on the outside, and a through groove (13) for the base (1) to pass through is provided on the bottom end surface of the step platform (12), a feed port (21) is provided on the top end surface of the step platform (12), and oblique material guide grooves (22) are symmetrically provided on the inner walls on both sides of the feed port (21), an oblique material receiving groove (23) is provided at one end of the oblique material guide groove (22), and a material receiving mechanism is provided inside the oblique material receiving groove (23), a material guiding mechanism is provided below the oblique material guide groove (22), a material receiving detection mechanism is provided below the feed port (21), and a loading mechanism is provided above the feed port (21).

2. A pipeline internal powder spraying device according to claim 1, characterized in that: The material receiving mechanism specifically comprises: a flip plate (24) movably connected to the inside of the oblique material receiving groove (23); the inner side surface of the flip plate (24) is fixedly connected to a material receiving frame (32); a material receiving groove (33) is provided between the material receiving frame (32) and the flip plate (24); a rubber pad (35) is embedded in the bottom end surface of the material receiving groove (33); a rectangular groove (36) is opened on the inner wall of one side of the material receiving groove (33); the inside of the rectangular groove (36) is provided with a rubber pad (35) and a rubber pad (35) is embedded in the bottom end surface of the material receiving groove (33); ... A plurality of evenly distributed L-shaped plates (37) are rotatably connected in the oblique height direction, and a shaft (38) is passed through and fixedly connected inside the L-shaped plate (37), and a rotating cavity (40) is opened on both sides of the rectangular groove (36), and the two ends of the shaft (38) respectively pass through the corresponding rotating cavity (40) and are sleeved with a volute spring (41), and the two ends of the volute spring (41) are respectively fixedly connected to the outer side surface of the shaft (38) and the inner wall of the rotating cavity (40).

3. A pipeline internal powder spraying device according to claim 2, characterized in that: A first ferromagnet (34) is embedded in one side of the material receiving frame (32), and a second ferromagnet (31) is embedded in the inner wall of one side of the oblique material receiving trough (23) at a position corresponding to the first ferromagnet (34), and the first ferromagnet (34) and the second ferromagnet (31) are magnetically adsorbed together.

4. A pipeline internal powder spraying device according to claim 2 or 3, characterized in that: A silicone pad (39) is fixedly connected to the inner side surface of the L-shaped plate (37).

5. The pipeline internal powder spraying device according to claim 1, characterized in that: The material receiving detection mechanism specifically comprises: three parallel lifting cylinders (28), the three lifting cylinders (28) are respectively fixed on the top of three linear motors (4) near the middle position on the linear guide rail (3), and the top output shaft of the lifting cylinder (28) is fixedly connected to a U-shaped frame (29), and the inner side surface of the middle U-shaped frame (29) is embedded with an ultrasonic sensor probe (30).

6. A pipeline internal powder spraying device according to claim 5, characterized in that: The material guiding mechanism specifically comprises: two rotating grooves (25) arranged in parallel below the inner wall of the feed port (21); a rotating plate (27) is rotatably connected inside the rotating groove (25); a rotating motor (26) is embedded in the inner wall of one side of the rotating groove (25); the output shaft of the rotating motor (26) is fixedly connected to the rotating plate (27); the rotating plates (27) on both sides of the feed port (21) are staggered and are not in the same vertical plane as the three lifting cylinders (28).

7. The pipeline internal powder spraying device according to claim 1, characterized in that: The feeding mechanism specifically comprises: a feeding box (14) fixed on the top of the ladder platform (12), a feeding chamber (15) is provided inside the feeding box (14), and push plates (16) are movably connected to both sides of the feeding chamber (15), pushing cylinders (17) are embedded on both sides of the feeding box (14), and the output shaft of the pushing cylinder (17) is fixedly connected to the corresponding push plate (16), a discharge port (18) is provided at the bottom end surface of the feeding chamber (15) at a position corresponding to the feed port (21), and telescopic cylinders (19) are symmetrically embedded on the inner walls on both sides of the discharge port (18), and the output shaft of the telescopic cylinder (19) is fixedly connected to the discharge plate (20).

8. The pipeline internal powder spraying device according to claim 1, characterized in that: The clamping and rotating mechanism specifically comprises: a support seat (5) fixed on the top end of the leftmost linear motor (4); a three-jaw chuck (8) is movably connected to one side of the support seat (5); and a driving motor (7) is fixedly connected to the other side of the support seat (5); and the driving motor (7) and the three-jaw chuck (8) are connected via a pulley transmission.

9. The pipeline internal powder spraying device according to claim 1, characterized in that: The powder spraying mechanism specifically comprises: a fixing seat (6) fixed at the top end of the rightmost linear motor (4), a through-type stepping motor (9) being fixedly connected to the top end of the fixing seat (6), a through-type stepping screw (10) being provided inside the through-type stepping motor (9), a spray gun (11) being fixedly connected to one end of the through-type stepping screw (10), and a cavity communicating with the spray gun (11) being provided at the other end of the through-type stepping screw (10).

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