Pipe fitting servo drainer

Abstract

This utility model discloses a servo-driven pipe drying machine, relating to the field of drying equipment technology. It includes a frame, a lower positioning fixture, an upper positioning mold, a lifting frame servo drive assembly, and an air knife assembly. The lifting frame servo drive assembly is mounted on the frame, and the air knife assembly is connected to it. The lifting frame servo drive assembly drives the air knife assembly to move axially along the pipe to air dry it. The lower positioning fixture is mounted on the frame for fixing the lower part of the pipe. The upper positioning mold is mounted on the lifting frame servo drive assembly, which drives the upper positioning mold to move downwards so that it abuts against the top opening of the pipe. This utility model provides a servo-driven pipe drying machine that can achieve rapid, non-destructive, and stable fixing of pipes, and can automatically and efficiently complete the synchronous drying of the inner and outer walls of the pipe.

Description

Technical Field

[0001] This utility model relates to the field of draining equipment technology, specifically to a pipe fitting servo draining machine. Background Technology

[0002] After the manufacturing and cleaning processes of pipe fittings (such as stainless steel pipes), it is necessary to effectively drain the residual moisture on the inner and outer walls to prevent water stains, spots, or rust, and to ensure the cleanliness and quality of the product.

[0003] To address the aforementioned issues, existing patent literature discloses a pipe drying device, publication number CN118517863A. This device includes a base, a drive assembly, and an air knife assembly. The base has a first positioning part for mounting and positioning the pipe. The drive assembly is mounted on the base. The air knife assembly is connected to the drive assembly, which is adapted to drive the air knife assembly to move along the axial direction of the pipe to air dry it. The high-speed airflow generated by the air knife can quickly and evenly dry the moisture on the surface of the pipe, improving drying efficiency and effectiveness. Compared to hot air drying equipment, the air knife drying technology does not require additional heating equipment, reducing energy consumption and production costs.

[0004] However, the existing technical solution still has obvious drawbacks. First, the side of the positioning block facing the pipe fitting is inclined, and the transition between the inclined surface and the horizontal position of the positioning block will produce a straight edge or sharp angle, which can easily scratch the delicate outer surface of the pipe fitting when fixing it, affecting the appearance quality of the product. Second, the first positioning part (i.e., the lower positioning fixture) cannot be compatible with the quick adjustment of pipe fittings of different diameters, and the fixture needs to be replaced when changing the model.

[0005] Therefore, there is an urgent need for a device that can achieve stable and non-destructive positioning and efficiently and automatically complete the simultaneous draining of the inner and outer walls of pipe fittings. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a pipe fitting servo draining machine that can quickly, non-destructively, and stably fix pipe fittings, and can automatically and efficiently complete the synchronous draining of the inner and outer walls of the pipe fittings.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A pipe fitting servo drying machine includes a frame, a lower positioning fixture, an upper positioning mold, a lifting frame servo drive assembly, and an air knife assembly. The lifting frame servo drive assembly is mounted on the frame, and the air knife assembly is connected to the lifting frame servo drive assembly. The lifting frame servo drive assembly drives the air knife assembly to move along the axial direction of the pipe fitting to air dry the pipe fitting. The lower positioning fixture is mounted on the frame for fixing the lower part of the pipe fitting. The upper positioning mold is mounted on the lifting frame servo drive assembly, and the lifting frame servo drive assembly drives the upper positioning mold to move downward so that the upper positioning mold abuts against the top opening of the pipe fitting.

[0008] Furthermore, the lower positioning fixture includes a base, a chassis, a positioning plate, and multiple positioning rods. The base is mounted on the frame, and the chassis is mounted on the base. The chassis and the positioning plate are rotatably connected, and multiple circumferentially distributed adjustment blocks are arranged between them. One end of each adjustment block is rotatably connected to the chassis, and the other end is provided with a positioning rod. The multiple positioning rods pass through the positioning plate and are connected to the adjustment blocks. Both the chassis and the positioning plate are hollow structures, and the positioning plate is provided with a track groove for limiting the positioning rods.

[0009] Furthermore, the upper positioning mold is conical in shape, and the end of the upper positioning mold facing the pipe has a small diameter.

[0010] Furthermore, the air knife assembly includes an inner air knife and an outer air knife. The inner air knife is connected to the lifting frame servo drive assembly. Under the drive of the lifting frame servo drive assembly, the inner air knife moves along the inner wall of the pipe and drains the inner wall of the pipe. The outer air knife is connected to the lifting frame servo drive assembly. Under the drive of the lifting frame servo drive assembly, the outer air knife moves along the outer wall of the pipe and drains the outer wall of the pipe.

[0011] Furthermore, the lifting frame servo drive assembly includes a servo drive mechanism and a lifting frame. The servo drive mechanism is mounted on the frame, and the lifting frame is connected to the servo drive mechanism. The lifting frame is provided with a first connecting rod and a second connecting rod. The inner air knife is mounted on the first connecting rod, and the outer air knife is mounted on the second connecting rod.

[0012] Furthermore, the middle part of the first connecting rod is hollow to form an airflow channel communicating with the inner air knife, and the middle part of the second connecting rod is hollow to form an airflow channel communicating with the outer air knife.

[0013] Furthermore, it also includes a water collection and drainage component, which is installed inside the frame. The water collection and drainage component includes a water collection tray and a drainage pipe. The water collection tray is correspondingly arranged with the lower positioning fixture, and the drainage pipe is connected to the water collection tray to drain the water that has drained from the pipe.

[0014] Furthermore, it also includes a detection sensor, which is mounted on the frame and located around the lower positioning fixture, and is used to detect whether a pipe fitting has been placed at the workstation of the lower positioning fixture.

[0015] Furthermore, it also includes a guide post, which is mounted on the frame, and at least one of the inner and outer air knives passes through the guide post to guide the air knife assembly.

[0016] Compared with existing technologies, the technical solution of this patent achieves the following beneficial effects: 1. Through the coordinated action of the lower positioning fixture and the upper positioning mold, the lower and top parts of the pipe fitting are stably fixed. The lower positioning fixture uses circumferentially distributed arc-shaped positioning rods, which effectively avoids scratching the outer wall of the pipe fitting; it is compatible with pipe fittings of different diameters placed in the workstation, and is compatible with the concentric adjustment of the lower positioning fixture, solving the problem of needing to change the fixture when changing the model in the existing technology.

[0017] 2. The air knife assembly, which integrates the inner and outer air knives, is driven by the lifting frame servo drive component to move along the pipe axis, realizing synchronous and automated blowing of the inner and outer walls of the pipe, resulting in high drainage efficiency and uniform and thorough effect.

[0018] 3. Employing a servo drive mechanism ensures precise and reliable control; speed and elevation can be parameterized, resolving issues such as cylinder instability and jamming in existing equipment. The hollow connecting rod design integrates power transmission and airflow delivery, resulting in a compact structure; the water collection and drainage component automatically collects and discharges wastewater, maintaining a clean working environment. The entire device boasts a high degree of automation and is suitable for continuous batch production. Attached Figure Description

[0019] Figure 1 This is a front-view three-dimensional structural diagram of the present invention; Figure 2 This is a rear-view three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the present invention from an upward perspective; Figure 4 This is a side view of the structure of this utility model; Figure 5 This is a side view of the structure of this utility model; Figure 6 This is a schematic diagram of the assembly of the lower positioning fixture and the pipe fitting; Figure 7 This is a structural diagram showing the disassembled assembly of the lower positioning fixture; Figure 8 for Figure 2 A magnified schematic diagram of the AA section in the diagram.

[0020] In the diagram: 1. Frame; 2. Lower positioning fixture; 21. Base; 22. Chassis; 23. Positioning plate; 24. Positioning rod; 25. Adjusting block; 3. Upper positioning mold; 4. Detection sensor; 5. Lifting frame servo drive assembly; 51. Servo drive mechanism; 52. Lifting frame; 53. First connecting rod; 54. Second connecting rod; 6. Air knife assembly; 61. Inner air knife; 62. Outer air knife; 7. Water collection and drainage assembly; 71. Water collection tray; 72. Drainage pipe; 8. Guide column; 9. Control system; 10. Pipe fittings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 8 As shown, this embodiment provides a technical solution: a pipe fitting servo drying machine, including a frame 1, a lower positioning fixture 2, an upper positioning mold 3, a lifting frame servo drive assembly 5, and an air knife assembly 6. The lifting frame servo drive assembly 5 is mounted on the frame 1, and the air knife assembly 6 is connected to the lifting frame servo drive assembly 5. The lifting frame servo drive assembly 5 drives the air knife assembly 6 to move along the axial direction of the pipe fitting 10 to air dry the pipe fitting 10. The lower positioning fixture 2 is mounted on the frame 1 for fixing the lower part of the pipe fitting 10. The upper positioning mold 3 is mounted on the lifting frame servo drive assembly 5. The lifting frame servo drive assembly 5 drives the upper positioning mold 3 to move downward so that the upper positioning mold 3 abuts against the top opening of the pipe fitting 10.

[0023] This patented technical solution achieves stable fixation of the pipe fitting 10 before drying through the synergistic action of the lower positioning fixture 2 and the upper positioning mold 3. Combined with the servo drive assembly 5 of the lifting frame driving the air knife assembly 6 to move axially along the pipe fitting, automated and precise full-process blowing of the inner and outer walls of the pipe fitting 10 is achieved, greatly improving the drying efficiency and effect. Existing similar devices have a first positioning part on the base, which includes multiple positioning blocks arranged circumferentially along the pipe fitting, and a first positioning slope is provided on the side of the positioning blocks facing the pipe fitting. The evenly distributed positioning blocks ensure stable support of the pipe fitting on the base and prevent movement or deformation due to uneven force during air drying. While the above solution can ensure stable support of the pipe fitting on the base and prevent movement or deformation due to uneven force during air drying, it is not perfect. The main issue is that the slope on the side of the positioning block facing the pipe fitting creates a straight edge or sharp angle at the transition between the slope and the horizontal plane of the positioning block, which can easily cause scratches on the outer wall of the pipe fitting. This patent redesigns the lower positioning fixture 2, the specific structure of which will be described below. Multiple positioning rods 24 are arranged to form a workstation for installing the pipe fitting 10. Because the positioning rods 24 have arc surfaces, they will not cause scratches to the outer wall when positioning the pipe fitting 10. In other embodiments, a soft rubber sleeve can be inserted into the body of the positioning rods 24 to further protect the pipe fitting 10.

[0024] The lower positioning fixture 2 in this embodiment includes a base 21, a chassis 22, a positioning plate 23, and multiple positioning rods 24. The base 21 is mounted on the frame 1, and the chassis 22 is mounted on the base 21. The chassis 22 and the positioning plate 23 are rotatably connected, and multiple circumferentially distributed adjustment blocks 25 are provided between them. One end of each adjustment block 25 is rotatably connected to the chassis 22, and the other end is provided with a positioning rod 24. The multiple positioning rods 24 pass through the positioning plate 23 and are connected to the adjustment blocks 25. Both the chassis 22 and the positioning plate 23 are hollow structures, and the positioning plate 23 is provided with a track groove 231 for limiting the positioning rods 24. A stable support position is formed by the multiple circumferentially distributed positioning rods 24. The hollow structure of the chassis 22 and the positioning plate 23 ensures that water dripping from the pipe 10 can pass through without obstruction, avoiding water accumulation and secondary pollution, and ensuring the cleanliness of the working area. Meanwhile, by adjusting the position of the adjusting block 25, and then connecting the corresponding positioning rod according to the adjusted adjusting block 25, and then limiting the positioning rod by the track groove 231, it is possible to accommodate pipes of different diameters placed at the work station, and the positioning fixture is compatible with concentric adjustment, thus solving the problem that the existing technology requires changing the fixture when changing models.

[0025] In this embodiment, the upper positioning mold 3 is conical, with a smaller diameter at the end facing the pipe 10. The conical design of the upper positioning mold 3 allows it to adaptively center and embed into pipe openings of different diameters during the pressing process. Its conical surface guides and positions the pipe 10, ensuring its stable position during drying and guaranteeing the drying effect. It should be noted that the upper positioning mold 3 has a hollow interior forming a clearance cavity to facilitate the passage of the inner air knife 61. This design considers the movement and operational needs of the inner air knife 61 during the draining process of the pipe 10. By making the upper positioning mold 3 conical and having a clearance cavity, sufficient operating space is provided for the inner air knife 61 without affecting its main function. The main function of the clearance cavity is to allow the inner air knife 61 to pass freely and continue descending to drain the inner wall of the pipe 10 without being obstructed by the upper positioning mold 3.

[0026] The air knife assembly 6 in this embodiment includes an inner air knife 61 and an outer air knife 62. The inner air knife 61 is connected to the lifting frame servo drive assembly 5. Driven by the lifting frame servo drive assembly 5, the inner air knife 61 moves along the inner wall of the pipe 10 and dries the inner wall of the pipe 10. The outer air knife 62 is also connected to the lifting frame servo drive assembly 5. Driven by the lifting frame servo drive assembly 5, the outer air knife 62 moves along the outer wall of the pipe 10 and dries the outer wall of the pipe 10. The air outlets of both the inner and outer air knives 61 and 62 can be annular to ensure that the airflow they blow can fully cover the circumference of the inner and outer walls of the pipe 10. This allows the air knife assembly 6 to evenly dry the inner and outer walls of the pipe 10 during movement, avoiding localized residual moisture and achieving a uniform and efficient drying effect.

[0027] The lifting frame servo drive assembly 5 in this embodiment includes a servo drive mechanism 51 and a lifting frame 52. The servo drive mechanism 51 is like a servo motor and is mounted on the frame 1. The lifting frame 52 is connected to the servo drive mechanism 51. The lifting frame 52 is provided with a first connecting rod 53 and a second connecting rod 54. The inner air knife 61 is mounted on the first connecting rod 53, and the outer air knife 62 is mounted on the second connecting rod 54. The servo drive mechanism 51 provides high-precision, programmable control power. By integrating the first connecting rod 53 and the second connecting rod 54 into the lifting frame 52, it is ensured that the inner air knife 61 and the outer air knife 62 can be rigidly connected and driven synchronously, with consistent motion trajectories, thus ensuring the uniformity of the draining effect. The servo lifting control allows for parameterized setting of speed and height, solving problems such as cylinder instability and jamming in existing equipment.

[0028] In this embodiment, the middle of the first connecting rod 53 is hollow to form an airflow channel communicating with the inner air knife 61, and the middle of the second connecting rod 54 is hollow to form an airflow channel communicating with the outer air knife 62. One end of the airflow channel can be connected to an air source, and the other end can be connected to the air knife to provide airflow to the inner and outer air knives. This design reduces the need for additional piping, making the structure simpler and more compact. Reducing piping also lowers the possibility of interference between pipes and other components, improving the stability and reliability of the entire device. Necessary regulating devices, such as valves or throttle valves, can be installed inside the airflow channel to control the flow rate and speed of the airflow. A sealing ring can be installed at the connection between the airflow channel and the air knife to improve the sealing performance and prevent air leakage.

[0029] The pipe fitting servo drainer in this embodiment also includes a water collection and drainage assembly 7, which is installed inside the frame 1. The water collection and drainage assembly 7 includes a water collection tray 71 and a drainage pipe 72. The water collection tray 71 is correspondingly arranged with the lower positioning fixture 2, and the drainage pipe 72 is connected to the water collection tray 71 to drain the water drained from the pipe fitting 10. The water collection tray 71 can effectively collect all the water flowing down from the pipe fitting 10 and the lower positioning fixture 2, and automatically guide the water to the designated discharge point through the drainage pipe 72, realizing centralized discharge of water and keeping the working area dry and clean.

[0030] The pipe fitting servo drainer in this embodiment also includes a detection sensor 4, such as a photoelectric sensor or a proximity switch. The detection sensor 4 is mounted on the frame 1 and located around the lower positioning fixture 2. It is used to detect whether a pipe fitting has been placed at the workstation of the lower positioning fixture 2 and generates a signal to trigger subsequent automated processes. The addition of the detection sensor 4 gives the equipment sensing capabilities. It can detect whether a pipe fitting 10 is at the workstation and send a signal to trigger subsequent operation. This achieves full automation of the entire workflow, reduces manual intervention, and improves the safety and intelligence level of the equipment.

[0031] The pipe fitting servo drainer of this embodiment also includes a guide column 8, which is mounted on the frame 1. At least one of the inner air knife 61 and the outer air knife 62 passes through the guide column 8 to guide the air knife assembly 6. To increase the stability and guidance of the air knife assembly 6, the guide column 8 is specifically installed on the frame 1 to ensure that the inner air knife 61 and the outer air knife 62 maintain a precise and stable path during movement or adjustment. The fact that at least one of the inner air knife 61 and the outer air knife 62 passes through the guide column 8 allows the air knife assembly 6 to move along the trajectory of the guide column 8, thereby improving its stability and accuracy. It should be noted that the fit between the guide column 8 and the air knife assembly 6 should be tight and flexible to ensure that the air knife assembly 6 can move smoothly along the guide column 8 while avoiding excessive friction or jamming.

[0032] The working principle of this utility model pipe fitting servo drainer is as follows: The operator places the pipe fitting 10 to be drained at the first station of the equipment, where a lower positioning fixture 2 is located. Multiple positioning rods 24 provide initial positioning and support. The control system 9 sets the parameters for the current pipe fitting 10 and starts the process. The detection sensor 4 detects the presence of the pipe fitting 10 at the current station and generates a signal to trigger the subsequent automated process. The servo drive mechanism 51 of the lifting frame servo drive assembly 5 starts, driving the lifting frame 52 to descend. This causes the upper positioning mold 3 to move downwards and abut against the top opening of the pipe fitting 10. Simultaneously, the inner and outer air knives 61 and 62 of the air knife assembly 6 descend smoothly along the guide column 8. During the descent, high-pressure airflow is introduced into the inner and outer air knives 61 and 62, simultaneously blowing and draining the inner and outer walls of the pipe fitting 10. The water drained from the pipe fitting 10 falls through the perforated lower positioning fixture 2 into the water collection tray 71 and is discharged through the external drain pipe 72. Once the air knife assembly 6 reaches the predetermined end of its travel, it stops blowing air and resets, allowing the operator to remove the drained pipe fitting 10, completing one work cycle. This device can be set up with multiple workstations to achieve continuous operation, greatly improving production efficiency.

[0033] While the first station is draining or after resetting, the operator places another stainless steel pipe that needs to be drained into the second station of the equipment. The structure and operation process of the second station can be the same as that of the first station. The pipe draining machine operates in a cycle between the first and second stations according to the above steps to achieve continuous draining of stainless steel pipes and improve draining efficiency.

Claims

1. A pipe fitting servo drainer, comprising a frame (1), a lower positioning fixture (2), an upper positioning mold (3), a lifting frame servo drive assembly (5), and an air knife assembly (6), characterized in that, The lifting frame servo drive assembly (5) is mounted on the frame (1). The air knife assembly (6) is connected to the lifting frame servo drive assembly (5). The lifting frame servo drive assembly (5) drives the air knife assembly (6) to move along the axial direction of the pipe (10) to air dry the pipe (10). The lower positioning fixture (2) is mounted on the frame (1) for fixing the lower part of the pipe (10). The upper positioning mold (3) is mounted on the lifting frame servo drive assembly (5). The lifting frame servo drive assembly (5) drives the upper positioning mold (3) to move down so that the upper positioning mold (3) abuts against the top opening of the pipe (10).

2. The servo-driven pipe drying machine according to claim 1, characterized in that, The lower positioning fixture (2) includes a base (21), a chassis (22), a positioning plate (23), and multiple positioning rods (24). The base (21) is mounted on the frame (1), and the chassis (22) is mounted on the base (21). The chassis (22) is rotatably connected to the positioning plate (23), and multiple circumferentially distributed adjustment blocks (25) are provided between them. One end of each adjustment block (25) is rotatably connected to the chassis (22), and the other end is provided with a positioning rod (24). The multiple positioning rods (24) pass through the positioning plate (23) and are connected to the adjustment blocks (25). The chassis (22) and the positioning plate (23) are both hollow structures, and the positioning plate (23) is provided with a track groove (231) for limiting the positioning rods (24).

3. The servo-driven drainer for pipe fittings according to claim 1, characterized in that, The upper positioning mold (3) is conical, and the end of the upper positioning mold (3) facing the pipe (10) has a small diameter.

4. The servo-driven pipe drying machine according to claim 1, characterized in that, The air knife assembly (6) includes an inner air knife (61) and an outer air knife (62). The inner air knife (61) is connected to the lifting frame servo drive assembly (5). The inner air knife (61) moves along the inner wall of the pipe (10) and drains the inner wall of the pipe (10) under the drive of the lifting frame servo drive assembly (5). The outer air knife (62) is connected to the lifting frame servo drive assembly (5). The outer air knife (62) moves along the outer wall of the pipe (10) and drains the outer wall of the pipe (10) under the drive of the lifting frame servo drive assembly (5).

5. The servo-driven drainer for pipe fittings according to claim 4, characterized in that, The lifting frame servo drive assembly (5) includes a servo drive mechanism (51) and a lifting frame (52). The servo drive mechanism (51) is mounted on the frame (1). The lifting frame (52) is connected to the servo drive mechanism (51). The lifting frame (52) is provided with a first connecting rod (53) and a second connecting rod (54). The inner air knife (61) is mounted on the first connecting rod (53), and the outer air knife (62) is mounted on the second connecting rod (54).

6. The servo-driven drainer for pipe fittings according to claim 5, characterized in that, The middle part of the first connecting rod (53) is hollow to form an airflow channel communicating with the inner air knife (61), and the middle part of the second connecting rod (54) is hollow to form an airflow channel communicating with the outer air knife (62).

7. The servo-driven pipe drying machine according to claim 1, characterized in that, It also includes a water collection and drainage component (7), which is installed inside the frame (1). The water collection and drainage component (7) includes a water collection tray (71) and a drainage pipe (72). The water collection tray (71) is correspondingly arranged with the lower positioning fixture (2), and the drainage pipe (72) is connected to the water collection tray (71) to drain the water drained from the pipe fitting (10).

8. The servo-driven pipe drying machine according to claim 1, characterized in that, It also includes a detection sensor (4), which is set on the frame (1) and located around the lower positioning fixture (2) to detect whether a pipe has been placed on the work station of the lower positioning fixture (2).

9. The servo-driven pipe drying machine according to claim 4, characterized in that, It also includes a guide post (8), which is mounted on the frame (1), and at least one of the inner air knife (61) and the outer air knife (62) passes through the guide post (8) to guide the air knife assembly (6).

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