Cutting equipment for preventing deformation of pipe orifice of high-strength anti-cracking PP-R pipe fitting

Abstract

The utility model relates to the technical field of pipe fitting cutting, and discloses a high-strength anti-cracking PP-R pipe fitting orifice deformation prevention cutting device which comprises a bearing ring, the front side and the rear side of the bottom end of the bearing ring are fixedly connected with ground platforms, and the left end and the right end of the bearing ring are rotationally connected with connecting rings. First electric push rods are fixedly connected to the inner walls of the middles of the front end and the rear end of the connecting ring, a water receiving box is fixedly connected to the bottom end of the extension rod, and a plurality of atomizing nozzles are fixedly connected to the bottom end of the water receiving box. According to the pipe cutting device, under the cooperation of the water receiving box, the atomizing nozzle and the connected water pipe, the atomizing nozzle sprays water mist, after the water mist makes contact with the cut part of a pipe, heat generated by the cut part of the pipe is reduced, and therefore the situation that after the pipe is cut, a pipe opening at the position is heated to deform, and the pipe cutting quality is improved is avoided. And therefore, the influence on the fitting degree and the sealing effect when the pipe orifice is connected with other pipe fittings is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe fitting cutting technical field, concretely is a kind of cutting equipment of high-strength anti-cracking PP-R pipe fitting pipe mouth anti-deformation. BACKGROUND

[0002] PP-R pipe fitting is with random copolymer polypropylene as raw material, is processed by injection molding and is used to connect the pipe component, with PP-R pipe as inner tube, outer lining aluminum alloy pipe, through special technology to be compounded together.Aluminum alloy layer provides high strength and rigidity, enhances the compression resistance and anti-cracking ability of pipe fitting, while PP-R inner tube guarantees sanitary performance.

[0003] However, longer PP-R pipe fitting is generally cut by electric cutting tool when cutting operation is carried out, according to the trend of linear travel, pipe is cut, which makes stress concentration of pipe local, and a certain heat is generated due to friction between tool part and pipe during cutting, which causes deformation of pipe mouth after cutting due to heating, which has certain influence on the fit and sealing effect of the pipe mouth when connected with other pipe fittings.

[0004] To this end, in order to prevent the deformation of pipe mouth of PP-R pipe fitting during cutting and affect the subsequent connection state, the application provides a kind of cutting equipment of high-strength anti-cracking PP-R pipe fitting pipe mouth anti-deformation. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of cutting equipment of high-strength anti-cracking PP-R pipe fitting pipe mouth anti-deformation, and the heat generated by pipe fitting cutting part is cooled down, to prevent the deformation of pipe mouth due to heating after pipe cutting.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a kind of cutting equipment of high-strength anti-cracking PP-R pipe fitting pipe mouth anti-deformation, including bearing ring, the bottom end of the bearing ring is fixedly connected with platform on the front and back sides, the left and right ends of the bearing ring are rotatably connected with link ring, the inner wall of the middle part of the front and back ends of the link ring is fixedly connected with electric push rod one, the driving end of the electric push rod one is fixedly connected with clamping plate, the inner wall of the upper and lower sides of the inward one end of the clamping plate is fixedly connected with antiskid pad, the inner wall of the top end of the bearing ring is slidably connected with extension rod on the front and back sides, the top end of the extension rod is fixedly connected with lifting plate, the bottom end of the extension rod is fixedly connected with water receiving box, the bottom end of the water receiving box is fixedly connected with a plurality of atomizing nozzles, the middle part of the front end of the bearing ring is fixedly connected with electric push rod two and penetrates the inner and outer sides of the bearing ring, the driving end of the electric push rod two is fixedly connected with concave frame, the right end of the rear side of the concave frame is fixedly connected with servo motor two, the driving end of the servo motor two penetrates the inner wall of the concave frame and is fixedly connected with saw blade.

[0007] Further description: A retaining platform is fixedly connected to the middle of the rear end of the bearing ring, and a dual-axis motor is fixedly connected to the rear side of the inner wall of the retaining platform. Gears are fixedly connected to the drive ends of the dual-axis motor. Here, the dual-axis motor has the effect of synchronous drive at both ends, which enables the connected gears to rotate synchronously.

[0008] Further description: The outer wall of each connecting ring is fixedly connected with a toothed ring, and the rear end of the outer diameter of the toothed ring is meshed with the front end of the outer diameter of the gear; here, the toothed ring and the gear cooperate to form a meshing transmission effect.

[0009] Further description: The lifting plate is slidably connected to the left and right ends of the support frame, the bottom end of the support frame is fixedly connected to the top end of the bearing ring, and the top end of the support frame is fixedly connected to the servo motor; here, the support frame is fixed to the top of the bearing ring to provide support for the servo motor.

[0010] Further description: The drive end of the servo motor passes through the inner wall of the support frame and is fixedly connected to a threaded rod. The outer wall of the threaded rod is threadedly connected to the inner wall of the lifting plate. Here, the servo motor provides the rotational driving force for the threaded rod, causing the lifting plate to slide on its outer wall thread.

[0011] Further description: An electric push rod three is fixedly connected to the inner wall of the bottom end of the bearing ring and passes through both the inner and outer sides of the bearing ring. The driving end of the electric push rod three is fixedly connected to a separation platform; here, the electric push rod three provides an upward force for the separation platform.

[0012] Further description: The bearing ring has through holes on the front sides of both the upper and lower ends, and water pipes are installed on the inner walls of the through holes. One end of the water pipe is installed on the front side of the bottom of the separation platform and the front side of the top of the water receiving box, respectively. Here, the water pipe is used for water injection and drainage, and in actual use, the water pipe is relatively long and can move with the connected object.

[0013] Further description: The upper inner walls of the front and rear ends of the separation platform are provided with filter screen plates, and the left and right ends of the filter screen plates are respectively kept at the same horizontal plane as the left and right ends of the separation platform; here, the upper inner wall of the separation platform is provided with grooves, and the two ends of the filter screen plates can be inserted into the grooves to produce a limiting effect.

[0014] Beneficial effects:

[0015] 1. In this utility model, the pipe is cut around its perimeter by means of a dual-axis motor, gears, connecting rings, and toothed rings, thereby avoiding excessive stress concentration during cutting. At the same time, with the cooperation of the water receiving box, atomizing nozzle, and connected water pipe, the atomizing nozzle sprays water mist. When the water mist comes into contact with the cut part of the pipe, it reduces the heat generated by the cut part of the pipe, thereby preventing the pipe opening from deforming due to heat after cutting. This also avoids affecting the fit and sealing effect when the pipe opening is connected to other pipe fittings.

[0016] 2. In this utility model, a portion of the water mist sprayed downwards by the atomizing nozzle comes into contact with the debris generated during pipe cutting. The debris becomes wet and heavier, and falls onto the filter screen plate under the influence of gravity. Under the filtration effect of the filter screen plate, the debris remains on the surface of the filter screen plate, while the water drips into the separation table. The filter screen plate is then pulled out of the separation table to collect the retained debris. This allows for the collection of debris generated during pipe cutting, preventing debris from scattering into the surrounding environment and increasing the difficulty of subsequent cleaning. Attached Figure Description

[0017] Figure 1 This is a perspective view of a cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to this utility model.

[0018] Figure 2 This is a schematic diagram of the bearing ring structure of a cutting device for preventing deformation of the pipe end of a high-strength crack-resistant PP-R pipe fitting according to this utility model;

[0019] Figure 3 This is a cross-sectional view of the bearing ring of a cutting device for preventing deformation of the pipe end of a high-strength crack-resistant PP-R pipe fitting according to this utility model;

[0020] Figure 4 This is a cross-sectional view of the separation table of a cutting device for preventing deformation of the pipe end of a high-strength crack-resistant PP-R pipe fitting according to this utility model;

[0021] Figure 5 This is a schematic diagram of the concave frame structure of a cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to this utility model;

[0022] Figure 6 This is a cross-sectional view of the water receiving box of a cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to this utility model.

[0023] In the diagram: 1. Bearing ring; 2. Platform; 3. Connecting ring; 4. Gear ring; 5. Electric push rod one; 6. Clamping plate; 7. Anti-slip mat; 8. Support frame; 9. Electric push rod two; 10. Gear; 11. Fixing platform; 12. Dual-axis motor; 13. Separation platform; 14. Lifting plate; 15. Extension rod; 16. Servo motor one; 17. Water receiving box; 18. Concave frame; 19. Electric push rod three; 20. Filter screen plate; 21. Saw blade; 22. Servo motor two; 23. Threaded rod; 24. Atomizing nozzle. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] Please see Figure 1 , Figure 2 as well as Figure 5 A high-strength, crack-resistant, deformation-resistant cutting device for PP-R pipe fittings includes a bearing ring 1. Platforms 2 are fixedly connected to the front and rear sides of the bottom end of the bearing ring 1. Connecting rings 3 are rotatably connected to both ends of the bearing ring 1. A retaining platform 11 is fixedly connected to the middle of the rear end of the bearing ring 1. A dual-axis motor 12 is fixedly connected to the rear side of the inner wall of the retaining platform 11. Gears 10 are fixedly connected to the drive ends of the dual-axis motor 12. Gear rings 4 are fixedly connected to the outer wall of the connecting rings 3. The rear end of the outer diameter of the gear rings 4 meshes with the front end of the outer diameter of the gears 10. Electric push rods 5 are fixedly connected to the inner walls of the middle of both ends of the connecting rings 3. Clamping plates are fixedly connected to the drive ends of the electric push rods 5. 6. Anti-slip pads 7 are fixedly connected to the upper and lower sides of the inward end of the clamping plate 6. Extension rods 15 are slidably connected to the inner walls of the front and rear sides of the top of the bearing ring 1. Lifting plate 14 is fixedly connected to the top of the extension rod 15. Water collection box 17 is fixedly connected to the bottom of the extension rod 15. Several atomizing nozzles 24 are fixedly connected to the bottom of the water collection box 17. Electric push rod 29 is fixedly connected to the inner wall of the middle of the front end of the bearing ring 1 and passes through the inner and outer sides of the bearing ring 1. Concave frame 18 is fixedly connected to the driving end of electric push rod 29. Servo motor 22 is fixedly connected to the rear right side of concave frame 18. Saw blade 21 is fixedly connected to the driving end of servo motor 22 through the inner wall of concave frame 18.

[0027] To further explain, before the pipe cutting operation, the matching bolts and nuts, together with the mounting holes on the platform 2, are used to install the two platforms 2 on the corresponding work positions, providing a stable foundation for subsequent operations. Then, the pipe to be cut is passed through the bearing rings 1, and the two sides of the pipe are placed between the two clamping plates 6 on the same side. Then, the electric push rod 5 is activated, so that the electric push rod 5 on the front and rear sides pushes the clamping plates 6 to move towards each other, thereby firmly clamping and fixing the pipe. The anti-slip pad 7 contacts the outer wall of the pipe, further improving the clamping effect of the pipe.

[0028] During the cutting operation, the electric push rod 29 is activated, and its drive end pushes the concave frame 18 to bring the saw blade 21 closer to the pipe. Then, the servo motor 22 is activated, and its drive end drives the saw blade 21 to rotate at high speed to cut one side of the pipe. Next, the dual-axis motor 12 is activated, and its drive end drives the gears 10 on both sides to rotate. The gear ring 4 meshing with one side of the gear 10 rotates accordingly, which in turn drives the connecting ring 3 to rotate, so that the clamped and fixed pipe rotates to achieve a circumferential cut. Compared with the straight-line cutting method, this circumferential cutting method can avoid excessive stress concentration, effectively disperse stress, and improve the cutting quality.

[0029] Additional notes: All related drive devices in the device are electrically connected to an external controller and controlled by a set program. The control command receiving module is located at one end of the front platform 2.

[0030] Example 2

[0031] Please see Figure 3 , Figure 4 as well as Figure 6 Further, based on Embodiment 1, the left and right ends of the lifting plate 14 are slidably connected to the support frame 8. The bottom end of the support frame 8 is fixedly connected to the top end of the bearing ring 1. The top end of the support frame 8 is fixedly connected to the servo motor 16. The drive end of the servo motor 16 passes through the inner wall of the support frame 8 and is fixedly connected to the threaded rod 23. The outer wall of the threaded rod 23 is threadedly connected to the inner wall of the lifting plate 14. The bottom inner wall of the bearing ring 1 is fixedly connected to the electric push rod 19 and passes through the inner and outer sides of the bearing ring 1. The drive end of the electric push rod 19 is fixedly connected to the separation platform 13. The upper inner walls of the front and rear ends of the separation platform 13 are provided with filter screen plates 20. The left and right ends of the filter screen plates 20 are respectively kept at the same horizontal plane as the left and right ends of the separation platform 13. The front sides of the upper and lower ends of the bearing ring 1 are provided with through holes. The inner walls of the through holes are provided with water pipes. One end of the water pipe is installed on the front side of the bottom end of the separation platform 13 and the front side of the top end of the water receiving box 17, respectively.

[0032] To further explain, before cutting, by starting the servo motor 16, its drive end will drive the threaded rod 23 to rotate. Under the rotation of the threaded rod 23, the lifting plate 14 slides downward in the support frame 8, thereby pushing the extension rod 15 to slide downward in the inner wall of the bearing ring 1, causing the water receiving box 17 to move down, causing the bottom of the atomizing nozzle 24 to approach the top of the pipe. Then, the electric push rod 19 is started, and its drive end pushes the separation table 13 to move upward, so that the top of the separation table 13 approaches the bottom of the pipe.

[0033] Beforehand, the water pipe connected to the top side of the water receiving box 17 is passed through the through hole on the upper side of the bearing ring 1 to connect it to the external water source equipment. At the same time, the water pipe on the bottom side of the separation platform 13 is passed through the through hole on the lower side of the bearing ring 1 to connect it to the external container. This step ensures smooth water supply and drainage.

[0034] During the cutting process, an external water source device injects water into the water collection box 17 through a water pipe. The water passes through the atomizing nozzle 24 and is sprayed downwards as water mist. When the water mist comes into contact with the cut part of the pipe, it can reduce the heat generated by friction during the cutting process and prevent the pipe opening from deforming after cutting. At the same time, some of the water mist comes into contact with the debris generated during the cutting process. The debris becomes wet and heavier, and under the action of gravity, it falls downwards onto the filter screen plate 20. After being filtered by the filter screen plate 20, the debris remains on the surface of the filter screen plate 20, while the water is filtered and drips into the separation platform 13. Then, the water pipe at the bottom of the separation platform 13 is drained into a container for collection. After the cutting is completed, the filter screen plate 20 is pulled out from the separation platform 13, and the retained debris can be centrally processed.

[0035] Working principle: First, install the two platforms 2 at the corresponding work positions with bolts and nuts. Then, pass the water pipe connected to the top side of the water receiving box 17 through the through hole on the upper side of the bearing ring 1 and connect it to the external water source equipment. Pass the water pipe on the bottom side of the separation platform 13 through the through hole on the lower side of the bearing ring 1 and connect it to the external container. Then, pass the pipe to be cut through the bearing ring 1 and place the two sides of the pipe between the two clamping plates 6 at the same position. Then, start the electric push rod 5, so that the electric push rod 5 on the front and rear sides pushes the clamping plates 6 to move towards each other and clamps and fixes the pipe.

[0036] Then, start the servo motor 16, so that its drive end drives the threaded rod 23 to rotate. Then the lifting plate 14 slides downward in the support frame 8, thereby pushing the extension rod 15 to slide downward in the inner wall of the bearing ring 1, so that the water box 17 moves down and causes the bottom of the atomizing nozzle 24 to approach the top of the pipe. Then start the electric push rod 19, so that its drive end pushes the separation table 13 upward and causes its top to approach the bottom of the pipe.

[0037] Next, the electric push rod 29 is activated, causing its drive end to push the concave frame 18 and the saw blade 21 closer to the pipe. The servo motor 22 is then activated, causing its drive end to drive the saw blade 21 to rotate at high speed, thereby cutting one side of the pipe. Then, the dual-axis motor 12 is activated, causing its drive end to drive the gears 10 on both sides to rotate, and drive the gear ring 4 meshing with it on one side to rotate, thereby driving the connecting ring 3 to rotate, causing the clamped and fixed pipe to rotate, thus producing a circumferential cut. Compared with the straight-line cutting method, this can avoid excessive stress concentration, thereby effectively dispersing stress.

[0038] Meanwhile, an external water source device injects water into the water collection box 17 through a water pipe, and then sprays water mist downwards through the atomizing nozzle 24. After the water mist comes into contact with the cut part of the pipe, it will reduce the heat generated during the cutting of the pipe, thereby preventing the pipe opening from deforming after cutting. At the same time, some of the water mist will come into contact with the debris generated during the cutting of the pipe. The debris becomes wet and heavier, and falls downwards onto the filter screen plate 20 under the action of gravity. Under the filtering action of the filter screen plate 20, the debris is retained on the surface of the filter screen plate 20, while the water is filtered and drips into the separation platform 13. Then, the water pipe at the bottom of the separation platform 13 is discharged into the container for collection. Afterwards, the filter screen plate 20 is pulled out from the separation platform 13 for centralized treatment of the retained debris.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting, comprising a bearing ring (1), characterized in that: The bearing ring (1) is fixedly connected to a platform (2) on both the front and rear sides of its bottom end. The bearing ring (1) is rotatably connected to a connecting ring (3) on both the left and right ends. The connecting ring (3) is fixedly connected to an electric push rod (5) on the inner wall of the middle of both the front and rear ends. The driving end of the electric push rod (5) is fixedly connected to a clamping plate (6). The clamping plate (6) is fixedly connected to anti-slip pads (7) on both the upper and lower sides of its inward end. The bearing ring (1) is slidably connected to an extension rod (15) on the inner wall of both the front and rear sides of its top end. The top of the extension rod (15) is fixedly connected to a lifting plate (14). The extension rod (15) is fixedly connected to a water receiving box (17) at the bottom end. The water receiving box (17) is fixedly connected to several atomizing nozzles (24) at the bottom end. The electric push rod (9) is fixedly connected to the inner wall of the front middle part of the bearing ring (1) and passes through the inner and outer sides of the bearing ring (1). The drive end of the electric push rod (9) is fixedly connected to a concave frame (18). The servo motor (22) is fixedly connected to the rear right side of the concave frame (18). The drive end of the servo motor (22) passes through the inner wall of the concave frame (18) and is fixedly connected to a saw blade (21).

2. The cutting equipment for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 1, characterized in that: The bearing ring (1) is fixedly connected to a retaining platform (11) at the middle of its rear end. A dual-axis motor (12) is fixedly connected to the rear side of the inner wall of the retaining platform (11). Gears (10) are fixedly connected to the driving ends of the dual-axis motor (12).

3. The cutting equipment for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 1, characterized in that: The outer wall of each connecting ring (3) is fixedly connected with a toothed ring (4), and the rear end of the outer diameter of the toothed ring (4) is meshed with the front end of the outer diameter of the gear (10).

4. The cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 1, characterized in that: The lifting plate (14) is slidably connected to the left and right ends of the support frame (8), the bottom end of the support frame (8) is fixedly connected to the top end of the bearing ring (1), and the top end of the support frame (8) is fixedly connected to the servo motor (16).

5. The cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 4, characterized in that: The servo motor (16) drives through the inner wall of the support frame (8) and is fixedly connected to a threaded rod (23). The outer wall of the threaded rod (23) is threadedly connected to the inner wall of the lifting plate (14).

6. The cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 1, characterized in that: The inner wall of the bottom end of the bearing ring (1) is fixedly connected to an electric push rod three (19) that passes through both the inner and outer sides of the bearing ring (1). The driving end of the electric push rod three (19) is fixedly connected to a separation platform (13).

7. The cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 1, characterized in that: The bearing ring (1) has through holes on the front side of both the upper and lower ends. Water pipes are installed on the inner wall of each through hole. One end of each water pipe is installed on the front side of the bottom of the separation platform (13) and the front side of the top of the water receiving box (17).

8. The cutting device for preventing deformation of the pipe end of a high-strength, crack-resistant PP-R pipe fitting according to claim 6, characterized in that: The upper inner walls of the front and rear ends of the separation platform (13) are provided with filter screen plates (20), and the left and right ends of the filter screen plates (20) are respectively at the same level as the left and right ends of the separation platform (13).

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