A cutting device for detecting and cutting PE pipe

Abstract

This utility model relates to the field of PE pipe processing technology, and in particular to a testing and cutting device for PE pipe processing. It includes a base, on which an L-shaped bracket is fixedly mounted. A vertically extending hole is formed at the horizontal end of the bracket, and a vertically slidable moving rod is mounted within the hole. A pull rod is fixedly mounted at the upper end of the moving rod, and a mounting base is fixedly mounted at the lower end. A drive motor is fixedly mounted on the mounting base, and a grinding blade is fixedly mounted at the output end of the drive motor. A telescopic spring is sleeved on the moving rod, and a positioning component for controlling the pipe cutting length is provided on the bracket. This utility model replaces the traditional hand saw cutting method, and the rotary cutting force is more uniform, significantly reducing the compression of the pipe during cutting, thereby reducing the probability of plastic deformation of the pipe and providing a more accurate basis for subsequent thickness and inner / outer diameter testing, improving the reliability of the test data.

Description

Technical Field

[0001] This utility model relates to the field of PE pipe processing technology, and in particular to a testing and cutting device for PE pipe processing. Background Technology

[0002] Generally, PE pipes are used in temperatures below 40℃ and cannot be used for hot water transportation. PE pipe is a highly crystalline, non-polar thermoplastic resin. In its original state, HDPE is milky white and has a certain degree of translucency in thin sections. PE has excellent resistance to most household and industrial chemicals.

[0003] In the production process of PE pipes, the pipes that have just come off the production line need to be cut, and then their thickness and inner and outer diameters are measured by calipers. The cutting device currently used relies on a hand saw for cutting, and the squeezing generated during the hand saw cutting process will cause plastic deformation of the pipe, which will affect the accuracy of the test. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: In the production process of PE pipes, the pipes that have just come off the production line need to be cut, and then their thickness and inner and outer diameters are measured by calipers. The cutting device currently used relies on a hand saw for cutting, and the squeezing generated during the hand saw cutting process will cause plastic deformation of the pipe, thus affecting the detection accuracy. Therefore, a detection and cutting device for PE pipe processing is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A testing and cutting device for processing PE pipes includes a base, on which a placement platform is fixedly installed, and on which a clamping assembly for supporting the pipe is installed.

[0007] An L-shaped bracket is fixedly installed on the base. A vertically opening movable hole is provided on the horizontal end of the bracket. A movable rod is vertically slidably installed in the movable hole. A pull rod is fixedly installed on the upper end of the movable rod, and a mounting base is fixedly installed on the lower end of the movable rod. A drive motor is fixedly installed on the mounting base, and a grinding blade is fixedly installed on the output end of the drive motor. A telescopic spring is sleeved on the movable rod, and both ends of the telescopic spring are fixedly connected to the mounting base and the bracket, respectively. A positioning component for controlling the pipe cutting length is provided on the bracket.

[0008] Preferably, the vertical end of the bracket has a threaded hole, and the positioning assembly includes an adjusting screw with a horizontal thread inserted into the threaded hole and a positioning plate rotatably mounted on one end of the adjusting screw.

[0009] Preferably, the clamping assembly includes two clamping plates, two support blocks symmetrically fixedly mounted on the placement platform, two electrically controlled cylinders symmetrically fixedly mounted on the placement platform, multiple push rods symmetrically slidably mounted on the two support blocks, and two connecting rods symmetrically fixedly mounted on the output ends of the two electrically controlled cylinders. The two clamping plates are respectively fixedly connected to one end of the multiple push rods on both sides, and the two ends of the connecting rods are respectively fixedly connected to the two push rods on the support blocks.

[0010] Preferably, support rollers are symmetrically and rotatably mounted on both clamps, and the multiple support rollers are arranged in parallel to each other.

[0011] Preferably, a rectangular tube is fixedly installed on the side of the mounting base, a rectangular column is slidably inserted into the lower end of the rectangular tube, a spherical groove is opened at the lower end of the rectangular column, a ball bearing is rolled and embedded in the spherical groove, an exhaust pipe is connected to the side of the rectangular tube, and a sealing plug is fixedly installed at the upper end of the rectangular column, the side of the sealing plug is in sealing sliding contact with the inner wall of the rectangular tube.

[0012] Preferably, mounting blocks are fixedly installed on both sides of the rectangular tube, and vertical rods are slidably installed on both mounting blocks. The lower ends of the two vertical rods are fixedly connected to the side of the rectangular column through connecting blocks, and stop blocks are fixedly installed on the upper ends of the two vertical rods.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The pipe to be cut is installed on the support assembly, and the grinding blade is rotated and cut by the drive motor, which replaces the traditional hand saw cutting method. The force of the rotational cutting is more uniform, which can greatly reduce the compression of the pipe during the cutting process, thereby reducing the probability of plastic deformation of the pipe, providing a more accurate basis for subsequent thickness and inner and outer diameter detection, and improving the reliability of the detection data.

[0015] 2. The positioning component on the bracket can change the position of the positioning plate by rotating the adjusting screw, thereby precisely controlling the length of the pipe between the positioning plate and the grinding blade, and achieving precise control of the cutting length;

[0016] 3. Before cutting, the ball bearings first contact the pipe surface. Under the action of the extension spring, the mounting base moves down, and the rectangular column compresses the air inside the rectangular cylinder. The gas inside the rectangular cylinder gradually decreases, and at this time, the grinding blade will gradually move closer to the pipe surface. During the cutting process, the feed rate of the grinding blade makes the cutting blade cut more smoothly. Attached Figure Description

[0017] Figure 1 This is a right-view three-dimensional structural diagram of a testing and cutting device for PE pipe processing proposed in this utility model;

[0018] Figure 2This is a left-side three-dimensional structural diagram of a testing and cutting device for PE pipe processing proposed in this utility model;

[0019] Figure 3 A three-dimensional structural diagram of the bracket, moving rod, mounting base, telescopic spring, grinding tool, and positioning assembly;

[0020] Figure 4 A three-dimensional structural diagram of the placement platform and clamping components;

[0021] Figure 5 A schematic diagram of the three-dimensional cross-sectional structure of the mounting base, drive motor, grinding tool, rectangular tube, and rectangular column;

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle.

[0023] In the diagram: 1. Base, 2. Placement platform, 3. Bracket, 4. Moving rod, 5. Pull rod, 6. Mounting seat, 7. Drive motor, 8. Grinding knife, 9. Telescopic spring, 10. Adjusting screw, 11. Positioning plate, 12. Clamping plate, 13. Support block, 14. Electric cylinder, 15. Stop block, 16. Connecting rod, 17. Push rod, 18. Support roller, 19. Rectangular cylinder, 20. Rectangular column, 21. Ball bearing, 22. Exhaust pipe, 23. Sealing plug, 24. Mounting block, 25. Vertical rod, 26. Connecting block. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-2 A testing and cutting device for PE pipe processing includes a base 1, a placement platform 2 fixedly mounted on the base 1, a clamping assembly for supporting the pipe mounted on the placement platform 2, an L-shaped bracket 3 fixedly mounted on the base 1, a vertically opening movable hole at the horizontal end of the bracket 3, a movable rod 4 vertically slidably mounted in the movable hole, a pull rod 5 fixedly mounted at the upper end of the movable rod 4, a mounting seat 6 fixedly mounted at the lower end of the movable rod 4, a drive motor 7 fixedly mounted on the mounting seat 6, a grinding blade 8 fixedly mounted at the output end of the drive motor 7, a telescopic spring 9 sleeved on the movable rod 4, the two ends of the telescopic spring 9 being fixedly connected to the mounting seat 6 and the bracket 3 respectively, and a positioning assembly for controlling the pipe cutting length on the bracket 3.

[0026] The base 1 provides stable support for the entire device. The placement platform 2 serves as the bearing base for the pipe and, together with the clamping components, ensures the stable placement of the pipe. The bracket 3 provides an installation carrier for the cutting mechanism. The moving rod 4 can slide vertically along the moving hole. The pulling rod 5 drives the grinding blade 8 to move up and down to achieve the cutting action. The drive motor 7 provides rotational power for the grinding blade 8, replacing the manual cutting of the traditional hand saw, reducing manpower consumption and improving cutting efficiency. During the cutting process, the telescopic spring 9 is in a compressed state. Under the action of the elastic force of the telescopic spring 9, it is ensured that the grinding blade 8 is in constant contact with the pipe surface during the cutting process.

[0027] Reference Figure 3 The vertical end of the bracket 3 has a threaded hole. The positioning assembly includes an adjusting screw 10 with a horizontal thread inserted into the threaded hole and a positioning plate 11 rotatably mounted on one end of the adjusting screw 10. The plate surface of the positioning plate 11 is perpendicular to the pipe axis. By rotating the adjusting screw 10, the positioning plate 11 can be moved horizontally through the threaded transmission between the adjusting screw 10 and the threaded hole at the vertical end of the bracket 3. When the pipe to be cut is placed on the placement table 2, one end of the pipe is placed against the plate surface of the positioning plate 11. The cutting length of the pipe can be determined by the horizontal distance between the positioning plate 11 and the grinding blade 8, thus achieving precise control of the cutting length. The positioning plate 11 and the adjusting screw 10 are connected by a bearing to ensure that the positioning plate 11 only performs translational motion and does not rotate with the screw when the adjusting screw 10 rotates, thus avoiding torsional force on the pipe.

[0028] Reference Figure 4 The clamping assembly includes two clamping plates 12, two support blocks 13 symmetrically fixedly mounted on the placement platform 2, two electrically controlled cylinders 14 symmetrically fixedly mounted on the placement platform 2, multiple push rods 17 symmetrically slidably mounted on the two support blocks 13, and two connecting rods 16 symmetrically fixedly mounted on the output ends of the two electrically controlled cylinders 14. The two clamping plates 12 are respectively fixedly connected to one end of the multiple push rods 17 on both sides, and the two ends of the connecting rods 16 are respectively fixedly connected to the two push rods 17 on the support blocks 13. Support rollers 18 are symmetrically rotatably mounted on both clamping plates 12, and the multiple support rollers 18 are arranged in parallel with each other.

[0029] The clamping assembly is used to fix the pipe to be cut, preventing the pipe from shaking during cutting. When the pipe is placed between the two clamping plates 12, the electric cylinder 14 is activated. The output end of the electric cylinder 14 extends and retracts, driving the connecting rod 16 to move. The connecting rod 16 then pushes the push rod 17 to slide on the support block 13, eventually causing the two clamping plates 12 to move closer to each other until the support roller 18 is in contact with the outer wall of the pipe, thus achieving the clamping and fixing of the pipe. The support roller 18 can rotate around its own axis. After the pipe is clamped on multiple support rollers 18, it is easy to rotate the pipe during the cutting process, so that the grinding blade 8 can fully contact the side of the pipe.

[0030] Reference Figure 5A rectangular tube 19 is fixedly installed on the side of the mounting base 6. A rectangular column 20 is slidably inserted into the lower end of the rectangular tube 19. A spherical groove is opened at the lower end of the rectangular column 20. A ball bearing 21 is rolled and embedded in the spherical groove. An exhaust pipe 22 is connected to the side of the rectangular tube 19. A sealing plug 23 is fixedly installed at the upper end of the rectangular column 20. The side of the sealing plug 23 is in sealing sliding contact with the inner wall of the rectangular tube 19.

[0031] Before cutting, the rectangular column 20 is pulled down, and gas is filled into the rectangular cylinder 19 through the exhaust pipe 22. During cutting, the ball bearing 21 first contacts the surface of the pipe, and at the same time, under the elastic force of the telescopic spring 9, the grinding blade 8 gradually moves down, the rectangular column 20 is pushed up, and the sealing plug 23 slides upward in the rectangular cylinder 19, compressing the air in the rectangular cylinder 19. The air is slowly discharged through the exhaust pipe 22, which limits the upward speed of the rectangular column 20, thereby limiting the downward speed of the grinding blade 8, realizing slow feed during cutting, and reducing pipe deformation caused by instantaneous impact force.

[0032] Reference Figure 6 Mounting blocks 24 are fixedly installed on both sides of the rectangular tube 19. Vertical rods 25 are vertically slidably installed on both mounting blocks 24. The lower ends of the two vertical rods 25 are fixedly connected to the side of the rectangular column 20 through connecting blocks 26. Stop blocks 15 are fixedly installed on the upper ends of the two vertical rods 25. The vertical rods 25 move synchronously with the rectangular column 20 to ensure that the rectangular column 20 moves stably within the rectangular tube 19. At the same time, the stop blocks 15 can prevent the rectangular column 20 from detaching from the rectangular tube 19.

[0033] In this invention, when cutting a pipe, the pull rod 5 pulls the moving rod 4 upward, which in turn moves the drive motor 7 and the grinding blade 8 upward. Then, the pipe to be cut is installed on the clamping assembly. The pull rod 5 is released, and under the action of the telescopic spring 9, the drive motor 7 and the grinding blade 8 move downward until the grinding blade 8 contacts the pipe surface. The drive motor 7 is then started to rotate the grinding blade 8 to cut the pipe. At the same time, the pipe is rotated, so that the grinding blade 8 makes a circumferential cut along the side of the pipe, replacing the traditional hand saw cutting method. The force of the rotational cutting is more uniform, which can greatly reduce the compression of the pipe during the cutting process, thereby reducing the probability of plastic deformation of the pipe. This provides a more accurate basis for subsequent thickness and inner and outer diameter detection, and improves the reliability of the detection data.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A testing and cutting device for PE pipe processing, comprising a base (1), characterized in that, A placement platform (2) is fixedly installed on the base (1), and a clamping assembly for supporting the pipe is installed on the placement platform (2). An L-shaped bracket (3) is fixedly installed on the base (1). A moving hole is vertically opened at the horizontal end of the bracket (3). A moving rod (4) is vertically slidably installed in the moving hole. A pull rod (5) is fixedly installed at the upper end of the moving rod (4). A mounting seat (6) is fixedly installed at the lower end of the moving rod (4). A drive motor (7) is fixedly installed on the mounting seat (6). A grinding knife (8) is fixedly installed at the output end of the drive motor (7). A telescopic spring (9) is sleeved on the moving rod (4). The two ends of the telescopic spring (9) are fixedly connected to the mounting seat (6) and the bracket (3) respectively. A positioning component for controlling the pipe cutting length is provided on the bracket (3).

2. The inspection and cutting device for PE pipe processing according to claim 1, characterized in that, The bracket (3) has a threaded hole at its vertical end. The positioning assembly includes an adjusting screw (10) with a horizontal thread inserted into the threaded hole and a positioning plate (11) rotatably mounted on one end of the adjusting screw (10).

3. The inspection and cutting device for PE pipe processing according to claim 1, characterized in that, The clamping assembly includes two clamping plates (12), two support blocks (13) symmetrically fixed on the placement platform (2), two electrically controlled cylinders (14) symmetrically fixed on the placement platform (2), multiple push rods (17) symmetrically slidably mounted on the two support blocks (13), and two connecting rods (16) symmetrically fixed on the output ends of the two electrically controlled cylinders (14). The two clamping plates (12) are respectively fixedly connected to one end of the multiple push rods (17) on both sides, and the two ends of the connecting rods (16) are respectively fixedly connected to the two push rods (17) on the support blocks (13).

4. The inspection and cutting device for PE pipe processing according to claim 3, characterized in that, Support rollers (18) are symmetrically rotated on both clamps (12), and multiple support rollers (18) are arranged in parallel to each other.

5. The inspection and cutting device for PE pipe processing according to claim 1, characterized in that, A rectangular tube (19) is fixedly installed on the side of the mounting base (6). A rectangular column (20) is slidably inserted into the lower end of the rectangular tube (19). A spherical groove is opened at the lower end of the rectangular column (20). A ball bearing (21) is rolled and embedded in the spherical groove. An exhaust pipe (22) is connected to the side of the rectangular tube (19). A sealing plug (23) is fixedly installed at the upper end of the rectangular column (20). The side of the sealing plug (23) is in sealing sliding contact with the inner wall of the rectangular tube (19).

6. The inspection and cutting device for PE pipe processing according to claim 5, characterized in that, Mounting blocks (24) are fixedly installed on both sides of the rectangular tube (19). Vertical rods (25) are vertically slidably installed on both mounting blocks (24). The lower ends of the two vertical rods (25) are fixedly connected to the side of the rectangular column (20) through connecting blocks (26). Stop blocks (15) are fixedly installed on the upper ends of the two vertical rods (25).

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