Automatic pipe sidewall lettering machine

Abstract

The application relates to the technical field of pipe processing equipment, in particular to a pipe side wall automatic letter spraying machine, which comprises a spraying table, a placing table is arranged on the spraying table, a spraying machine driven by a first linear driver is slidably connected to the placing table, first working grooves and second working grooves with the same structure are arranged on the spraying table, a first rotating frame is rotatably connected to the first working grooves, a first rotating cylinder is rotatably connected to the first rotating frame, a plurality of first radial cylinders are arranged on the circumferential wall of the first rotating cylinder, a first sliding rod is slidably connected to each first radial cylinder, a first inner supporting part is arranged on each first sliding rod, and a first air inlet pipe communicated with the inner cavity of the first rotating cylinder is arranged on the circumferential wall of the first rotating cylinder. The double working grooves and the clamping mechanism can realize synchronous spraying and feeding and discharging, so that the production efficiency is improved, and the pipe with different specifications can be adapted.

Description

Technical Field

[0001] This application relates to the technical field of pipe processing equipment, and in particular to an automatic lettering machine for pipe sidewalls. Background Technology

[0002] During the pipe manufacturing process, it is often necessary to spray markings, specifications, production dates, and other information onto the side walls of the pipes. Existing pipe marking machines are single-station designs. When marking a single pipe, the equipment is in a single working state. After marking the pipe is finished, the machine needs to be stopped for loading and unloading operations before marking the next pipe can be done. This results in low equipment efficiency, long production cycles, and an inability to meet the needs of large-scale production.

[0003] A search revealed Chinese Patent Publication No. CN215625137U, which discloses an automatic lettering machine for pipes, including a bottom support and a receiving rack. The bottom support is equipped with a storage rack and a feeding rack, and a feeding device is provided on the bottom support. The feeding device feeds the pipes from the storage rack into the feeding rack. A lettering device is provided at the end of the bottom support. The bottom support is also equipped with a feeding rack, which is equipped with a feeding device for conveying pipes to the lettering device. The feeding rack is inclined toward the feeding device, and a pipe limiting device is also provided on the feeding rack.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: In existing technologies, after the printing of a pipe is completed, the machine needs to be stopped for loading and unloading operations before new pipes can be printed, resulting in low equipment efficiency and a long production cycle. This application aims to solve the problems of low efficiency and long production cycles caused by machine stoppages for loading and unloading in existing single-station printing machines. It employs a dual-work slot design to synchronize printing and loading / unloading, and a clamping mechanism adapted to different pipe specifications, thereby improving production efficiency and adapting to different pipe printing requirements. Utility Model Content

[0005] To reduce downtime of pipe printing machines, this application provides an automatic pipe sidewall printing machine.

[0006] This application provides an automatic lettering machine for the sidewalls of pipes, employing the following technical solution: It includes a spraying table, on which a placement platform is provided, and a spraying machine driven by a first linear actuator is slidably connected. The spraying table has a first working slot and a second working slot with identical structures. Both the first and second working slots are equipped with clamping mechanisms of identical structures. The clamping mechanism includes a first rotating frame disposed on one side of the spraying table and a second rotating frame disposed in the middle section of the spraying table. The first rotating frame is rotatably connected to a first rotating cylinder. The peripheral wall of the first rotating cylinder is provided with multiple first radial cylinders. Each first radial cylinder is slidably connected with a first sliding rod, and each first sliding rod is provided with a first inner support portion. The peripheral wall of the first rotating cylinder is provided with a first air inlet pipe communicating with its inner cavity. By having all the first sliding rods drive the first inner support portions to slide outwards, the first inner support portions tighten the inner wall of the pipe, thereby enabling the clamping mechanism to adapt to pipes of different specifications.

[0007] Optionally, a motor is fixedly installed on one side of the spraying station, and a first drive rod is coaxially fixedly installed on the output shaft of the motor; a second sliding block is provided on the outer wall of the first drive rod.

[0008] Optionally, the inner wall of the first rotating cylinder is provided with a second sliding groove that is adapted to the second sliding block.

[0009] Optionally, a rotating ring is fixedly provided on the outer wall of the first rotating cylinder; a second linear driver is fixedly provided on the spraying table, and a driving block is provided at the output end of the second linear driver, with a driving groove on the driving block that abuts against the rotating ring.

[0010] Optionally, the second rotating frame is rotatably connected to a second rotating cylinder, and the peripheral wall of the second rotating cylinder is provided with a plurality of second radial cylinders; a second sliding rod is slidably connected inside each second radial cylinder.

[0011] Optionally, each of the second sliding rods is provided with a second inner support portion.

[0012] Optionally, the peripheral wall of the second rotating cylinder is provided with a second air inlet pipe that communicates with its inner cavity.

[0013] In summary, this application includes the following beneficial technical effects:

[0014] 1. This utility model sets up a first working tank and a second working tank with the same structure. When the pipe in the first working tank is finished being sprayed, the spraying machine can immediately spray the pipe in the second working tank. At this time, the operator can perform loading and unloading operations in the first working tank, so that the spraying and loading and unloading are carried out simultaneously. This avoids the situation where the equipment needs to stop and wait due to a single workstation operation, effectively shortens the production cycle, and meets the needs of large-scale production.

[0015] 2. In this utility model, the peripheral wall of the first rotating cylinder is provided with multiple first radial cylinders. Each first radial cylinder has a first sliding rod with a first inner support portion. High-pressure air is input or extracted through the first air inlet pipe, which drives the first sliding rod to slide outwards or inwards, thereby tightening or loosening the inner wall of pipes of different specifications. Similarly, the structure of the second rotating cylinder can also clamp and loosen the other end of the pipe. Furthermore, the motor drives the first rotating cylinder to rotate via the first drive rod, causing the pipe to rotate around its axis. This, combined with the first linear actuator, drives the spraying machine to slide back and forth, ensuring that the spraying machine covers the circumference of the pipe and achieves uniform lettering. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0017] Figure 2 This is a schematic diagram of the transmission structure of the motor in an embodiment of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the first rotating cylinder in the embodiments of this application;

[0019] Figure 4 This is a schematic diagram of the structure of the second rotating cylinder in an embodiment of this application.

[0020] Reference numerals: 1. Spraying station; 2. Placement platform; 3. Spraying machine; 4. First working slot; 5. Second working slot; 6. First rotating frame; 7. Second rotating frame; 8. First rotating cylinder; 9. First radial cylinder; 10. First sliding rod; 11. First inner support; 12. First air inlet pipe; 13. Motor; 14. First drive rod; 15. Second sliding block; 16. Rotating ring; 17. Second linear driver; 18. Drive block; 19. Second rotating cylinder; 20. Second radial cylinder; 21. Second sliding rod; 22. Second inner support; 23. Second air inlet pipe. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] This application discloses an automatic lettering machine for the sidewalls of pipes. For example... Figure 1As shown, the system includes a spraying table 1, a placement platform 2 on the spraying table 1, and a spraying machine 3 driven by a first linear driver slidably connected to the placement platform 2. The spraying table 1 has a first working slot 4 and a second working slot 5 with identical structures. Both the first working slot 4 and the second working slot 5 are equipped with clamping mechanisms of identical structures. The clamping mechanisms include a first rotating frame 6 located on one side of the spraying table 1 and a second rotating frame 7 located in the middle section of the spraying table 1. The first rotating frame 6 is rotatably connected to a first rotating cylinder 8. The peripheral wall of the first rotating cylinder 8 is provided with multiple first radial cylinders 9. Each first radial cylinder 9 is slidably connected to a first sliding rod 10, and each first sliding rod 10 is provided with a first inner support portion 11. The peripheral wall of the first rotating cylinder 8 is provided with a first air inlet pipe 12 communicating with its inner cavity.

[0023] In this embodiment, the clamping mechanism can clamp pipes of different specifications; the first linear driver drives the spraying machine 3 to slide back and forth on the placement table 2, thereby spraying the pipes in the first working tank 4 or the second working tank 5; when the pipes in the first working tank 4 are finished being sprayed, the spraying machine 3 starts to spray the pipes in the second working tank 5. At this time, the operator removes the pipes in the first working tank 4 and installs the pipes to be sprayed, thereby reducing the downtime of the equipment and improving work efficiency.

[0024] The first air inlet pipe 12 is connected to an air pump. The air pump inputs high-pressure air into the first air inlet pipe 12. The high-pressure air drives multiple first sliding rods 10 to slide outward along the axis of the corresponding first radial cylinder 9, thereby enabling the multiple first inner support parts 11 to tighten the inner walls of pipes of different specifications.

[0025] Please see Figure 1 , Figure 2 and Figure 3 A motor 13 is fixedly installed on the spraying table 1, and a first drive rod 14 is fixedly installed coaxially on the output shaft of the motor 13; a second sliding block 15 is provided on the outer wall of the first drive rod 14; a second sliding groove adapted to the second sliding block 15 is opened on the inner wall of the first rotating cylinder 8; a rotating ring 16 is fixedly installed on the outer wall of the first rotating cylinder 8; a second linear driver 17 is fixedly installed on the spraying table 1, and a drive block 18 is provided at the output end of the second linear driver 17, and a drive groove abutting against the rotating ring 16 is opened on the drive block 18;

[0026] In this embodiment, the motor 13 drives the first rotating cylinder 8 to rotate through the first drive rod 14, so that the pipe on the clamping mechanism can rotate around the axis of the first rotating cylinder 8, and different positions on the outer wall of the pipe can be sprayed by the spraying machine 3.

[0027] In this embodiment, the first drive rod 14 is slidably connected to the first rotating cylinder 8 via the second sliding block 15 and the second sliding groove. The second linear actuator 17 can drive the first rotating cylinder 8 to slide along the second sliding block 15 via the drive block 18 and the rotating ring 16. When the pipe needs to be removed, the first air inlet pipe 12 is pumped outward by the air pump, and the multiple first sliding rods 10 drive the corresponding first inner support 11 to move inward, releasing the clamping on the inner wall of the pipe. The second linear actuator 17 drives the first rotating cylinder 8 to slide along the second sliding block 15 toward the motor 13 side via the drive block 18 and the rotating ring 16, so that the clamping mechanism exits from the inner cavity of the pipe, making it easier to remove the pipe.

[0028] In this embodiment, the second linear actuator 17 is fixedly connected to the drive block 18, and the drive block 18 is rotatably connected to the rotating ring 16 through the drive groove, so that when the motor 13 drives the pipe to rotate, it will not interfere with the second linear actuator 17.

[0029] Please see Figure 4 The second rotating frame 7 is rotatably connected to the second rotating cylinder 19. The peripheral wall of the second rotating cylinder 19 is provided with a plurality of second radial cylinders 20. Each second radial cylinder 20 is slidably connected with a second sliding rod 21. Each second sliding rod 21 is provided with a second inner support 22. The peripheral wall of the second rotating cylinder 19 is provided with a second air inlet pipe 23 communicating with its inner cavity.

[0030] In this embodiment, the second air inlet pipe 23 is connected to an air pump. When it is necessary to loosen the clamping of the other end of the pipe, the air pump draws air from the second air inlet pipe 23, causing multiple second sliding rods 21 to drive the corresponding second inner support 22 to slide inward, thereby loosening the clamping on the inner wall of the pipe.

[0031] When pipe installation is required, the air pump inputs high-pressure air into the second air inlet pipe 23, causing multiple second sliding rods 21 to drive the corresponding second inner support parts 22 to slide towards one side of the inner wall of the pipe, thereby achieving the tightening of the inner wall of pipes of different specifications.

[0032] The implementation principle of an automatic lettering machine for pipe sidewalls according to an embodiment of this application is as follows:

[0033] The first linear actuator and the second linear actuator 17 are reset, and the sprayer 3 is in the initial position. The pipe to be sprayed is placed in the first working groove 4 or the second working groove 5, so that the two ends of the pipe correspond to the first rotating cylinder 8 and the second rotating cylinder 19 respectively. The air pump inputs high-pressure gas into the first air inlet pipe 12, which drives the first sliding rod 10 in the first radial cylinder 9 to slide outward, thereby driving the first inner support part 11 to open the inner wall of the pipe and fix one end of the pipe. The air pump inputs high-pressure gas into the second air inlet pipe 23, which similarly causes the second sliding rod 21 to drive the second inner support part 22 to open the other end of the pipe, thus completing the fixing of pipes of different specifications.

[0034] The first linear actuator drives the sprayer 3 to slide back and forth on the placement platform 2, spraying lettering onto the side wall of the pipe in the first working groove 4; the motor 13 drives the first rotating cylinder 8 to rotate (the second rotating cylinder 19 rotates synchronously) through the first drive rod 14, so that the pipe rotates around the axis, ensuring that the sprayer 3 covers the circumference of the pipe and achieves uniform lettering; the second linear actuator 17 remains stationary, and the drive groove of the drive block 18 abuts against the rotating ring 16, allowing the rotating cylinder to rotate but restricting its axial movement; when the pipe in the first working groove 4 is finished being sprayed, the sprayer 3 moves to the second working groove 5 and begins to spray the pipe in the second working groove 5;

[0035] When the spraying machine 3 switches to the second working tank 5, the operator operates the first working tank 4; the air pump draws air from the first air inlet pipe 12 and the second air inlet pipe 23 in the first working tank 4, causing the first inner support 11 and the second inner support 22 to retract and loosen the pipe; the second linear drive 17 starts, and pushes the rotating ring 16 through the drive block 18, causing the first rotating cylinder 8 and the second rotating cylinder 19 to slide axially toward the motor 13 side and exit from the inner cavity of the pipe; the operator removes the pipe that has been sprayed in the first working tank 4;

[0036] The new pipe to be coated is placed in the first working tank 4, and the "clamping and fixing process" is repeated to complete the loading. The second linear drive 17 is reset, driving the rotating cylinder to re-enter the inner cavity of the pipe. The air pump inflates and fixes the pipe, waiting for the next round of spraying. The spraying machine 3 sprays alternately between the first working tank 4 and the second working tank 5. At the same time, the operator completes loading and unloading at the non-spraying station, realizing the "spraying and loading and unloading" is carried out simultaneously, reducing the downtime of the equipment and improving production efficiency.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic lettering machine for pipe sidewalls, comprising a spraying table, characterized in that: The spraying platform is provided with a placement platform, on which a spraying machine driven by a first linear driver is slidably connected. The spraying platform has a first working slot and a second working slot with the same structure. Both the first and second working slots are provided with clamping mechanisms with the same structure. The clamping mechanism includes a first rotating frame located on one side of the spraying platform and a second rotating frame located in the middle section of the spraying platform. The first rotating frame is rotatably connected to a first rotating cylinder. The peripheral wall of the first rotating cylinder is provided with a plurality of first radial cylinders. Each first radial cylinder is slidably connected with a first sliding rod, and each first sliding rod is provided with a first inner support. The peripheral wall of the first rotating cylinder is provided with a first air inlet pipe communicating with its inner cavity.

2. The automatic lettering machine for pipe sidewalls according to claim 1, characterized in that: A motor is fixedly installed on one side of the spraying station, and a first drive rod is fixedly installed coaxially on the output shaft of the motor; a second sliding block is provided on the outer wall of the first drive rod.

3. The automatic lettering machine for pipe sidewalls according to claim 1, characterized in that: The inner wall of the first rotating cylinder is provided with a second sliding groove that is adapted to the second sliding block.

4. The automatic lettering machine for pipe sidewalls according to claim 1, characterized in that: A rotating ring is fixedly provided on the outer wall of the first rotating cylinder; a second linear driver is fixedly provided on the spraying table, and a driving block is provided at the output end of the second linear driver, with a driving groove on the driving block that abuts against the rotating ring.

5. The automatic lettering machine for pipe sidewalls according to claim 1, characterized in that: The second rotating frame is rotatably connected to a second rotating cylinder, and the peripheral wall of the second rotating cylinder is provided with a plurality of second radial cylinders; a second sliding rod is slidably connected inside each second radial cylinder.

6. The automatic lettering machine for pipe sidewalls according to claim 5, characterized in that: Each of the second sliding rods is provided with a second inner support.

7. An automatic lettering machine for pipe sidewalls according to claim 6, characterized in that: The second rotating cylinder has a second air inlet pipe that communicates with its inner cavity on its peripheral wall.

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