Rotary cutting device for PE pipe

Abstract

The PE pipe rotary cutting device comprises an operation table, the front end and the rear end of the operation table are both fixedly connected with limiting assemblies, each limiting assembly comprises a positioning plate fixedly connected to the end of the operation table, and the inner wall of each positioning plate is rotationally connected with an adjusting plate; the end, away from the operation table, of the adjusting plate is fixedly connected with a mounting plate, a plurality of adjusting grooves are formed in the outer ring face of the mounting plate, the end, away from the operation table, of the positioning plate is fixedly connected with a plurality of fixing shafts corresponding to the adjusting grooves correspondingly, and the outer surfaces of the fixing shafts are rotationally sleeved with adjusting rods. According to the pipe cutting device, the outer surface of a pipe is fixed, the pipe is not prone to being limited by the length and the size, in the cutting process, the pipe is kept in a fixed state, the cutting tool bit rotates to conduct rotary cutting on the pipe, the pipe is not prone to deviating due to rotation in the cutting process, and therefore the cutting precision and the cutting quality are effectively improved.

Description

Technical Field

[0001] The utility model relates to a cutting device, in particular to a PE pipe rotary cutting device applied to the field of PE pipe production and processing. Background Art

[0002] PE pipes are made of polyethylene plastic and can be used in water pipes, gas pipes, wire pipes and other fields. Since the length of PE pipes required in different scenarios is different when they are used, the pipes need to be cut before use to obtain PE pipes of corresponding lengths.

[0003] The specification of Chinese patent announcement number CN214323487U discloses a plastic pipe rotary cutting device. The utility model uses a first chuck and a second chuck to clamp and fix the two ends of the pipe respectively, and adjusts the position of the cutting blade through an electric slide according to needs. After adjustment, the cutting blade is driven to rotate by a dual-axis motor. During the cutting process, the first rotating rod can be driven to rotate by a reduction motor, and then the pipe is driven to rotate, thereby realizing rotary cutting, improving work efficiency, facilitating cutting size control, and reducing scrap rate.

[0004] However, the above patent will also have the following problems during actual application: when clamping and cutting the pipe, the above patent clamps and fixes the two ends of the pipe, and then drives the pipe to rotate, thereby completing the rotational cutting of the pipe, but this fixing method is limited by the width of the box. In actual use, the pipe may be too long to fit inside the box, and during cutting, the contact between the cutting blade and the pipe may cause the pipe to vibrate. At this time, driving the pipe to rotate may cause the pipe to shift during the rotation process, thereby reducing the cutting accuracy. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the existing pipe peeling device fixes the two ends of the pipe when cutting the pipe, so that the length of the pipe is limited, and the peeling is completed by the rotation of the pipe during cutting. This method can easily cause the pipe to shift during cutting, resulting in reduced cutting accuracy.

[0006] In order to solve the above problems, the utility model provides a PE pipe rotary cutting device, including an operating table, both front and rear ends of the operating table are fixedly connected to a limit assembly, the limit assembly includes a positioning plate fixedly connected to the end of the operating table, the inner wall of the positioning plate is rotatably connected to an adjustment plate, the end of the adjustment plate away from the operating table is fixedly connected to a mounting plate, a plurality of adjustment grooves are cut on the outer annular surface of the mounting plate, a plurality of fixed shafts corresponding to the plurality of adjustment grooves are fixedly connected to the end of the positioning plate away from the operating table, an adjustment rod is rotatably sleeved on the outer surface of the fixed shaft, and the adjustment grooves are provided in a plurality of adjustment grooves. There is a guide cylinder for rotation adjustment, and the end of the adjusting rod away from the fixed axis movably passes through the adjacent guide cylinder and is rotatably connected to the resistance wheel. The end of the positioning plate away from the operating table is also rotatably connected to cylinder one, and the protruding end of cylinder one is rotatably connected to a push block, and the push block is fixedly connected to the adjustment plate. An accommodating groove is drilled in the inner cavity of the operating table, and an electric swivel is rotatably connected in the accommodating groove. An installation groove is drilled on the surface of the electric swivel, and a mounting block is arranged in the installation groove. The side of the mounting block facing the central axis of the electric swivel is fixedly connected to cylinder two, and the protruding end of cylinder two is fixedly connected to a cutting head.

[0007] In the above-mentioned PE pipe rotary cutting device, when cutting the pipe, the outer surface of the pipe is fixed, and the pipe is not easily restricted by length and size. During the cutting process, the pipe remains fixed, and the cutting head rotates to cut the pipe, so that the pipe is not easily offset due to rotation during cutting, thereby effectively improving the cutting accuracy and cutting quality.

[0008] As a further improvement of the present application, the front end of the operating table is fixedly connected to a support plate, the upper end of the support plate is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a positioning frame, and a support roller is rotatably connected inside the positioning frame.

[0009] As a further improvement of the present application, the outer surfaces of the support roller and the abutment wheel are both provided with rubber sleeves, and the support roller is located directly in front of the positioning plate.

[0010] As a further improvement of the present application, a plurality of adjustment grooves are distributed in a ring array around the central axis of the positioning plate, and the adjustment grooves are arc-shaped.

[0011] As another improvement of the present application, an operating groove communicating with the accommodating groove is bored through the right end of the operating table, and the outer surface of the mounting block is fixedly connected to the inner wall of the mounting groove.

[0012] As another improvement of the present application, baffles are fixedly connected to both the front and rear ends of the mounting block, and the baffles are fixedly connected to the electric swivel by bolts.

[0013] To sum up, in actual application, the pipe is inserted into the operating table, and then the two cylinders are started to extend or retract at the same time, so that the push block moves, thereby driving the adjustment plate to rotate, so that multiple adjustment rods rotate with the fixed axis as the center, until the surfaces of the multiple interference wheels fit the pipe, thereby clamping and fixing the outer surface of the pipe, so that the pipe is not easily restricted by length and size when fixed, and then the electric swivel is started to drive the cutting head to rotate, so as to perform rotary cutting on the pipe, so that the pipe is not easily offset due to rotation during cutting, thereby effectively improving the cutting accuracy and cutting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the present application;

[0015] Figure 2 This is a structural front view of the first embodiment of the present application;

[0016] Figure 3 This is a cross-sectional view of the operating table structure of the first embodiment of the present application;

[0017] Figure 4 This is a schematic diagram of the structure of the limit assembly of the first embodiment of the present application;

[0018] Figure 5 This is an exploded schematic diagram of the limit assembly structure of the first embodiment of the present application;

[0019] Figure 6 This is a schematic diagram of the cutting head structure of the first embodiment of the present application;

[0020] Figure 7 This is a schematic diagram of the installation block structure of the second embodiment of the present application.

[0021] Description of the numbers in the figure:

[0022] 1 operating table, 2 positioning plate, 3 adjusting plate, 4 mounting plate, 5 adjusting groove, 6 fixed shaft, 7 adjusting rod, 8 guide cylinder, 9 contact wheel, 10 cylinder one, 11 push block, 12 accommodating groove, 13 electric swivel, 14 mounting block, 15 cylinder two, 16 cutting head, 17 positioning frame, 18 supporting roller, 19 baffle. DETAILED DESCRIPTION

[0023] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0024] The first implementation method:

[0025] Figure 1 , Figure 2 and Figure 3It shows: a PE pipe rotary cutting device, including an operating table 1, the front and rear ends of the operating table 1 are fixedly connected to the limiting components, the front end of the operating table 1 is fixedly connected to a support plate, the upper end of the support plate is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a positioning frame 17, the positioning frame 17 is rotatably connected with a support roller 18, the outer surfaces of the support roller 18 and the resistance wheel 9 are provided with rubber sleeves, the support roller 18 is located just in front of the positioning plate 2, the support roller 18 can support the pipe before it is fixed, the rubber sleeve can effectively increase the friction between the support roller 18 and the resistance wheel 9 and the pipe, so as to facilitate the support and fixation of the pipe. Point A in the figure is a PE pipe.

[0026] Figure 1 , Figure 4 and Figure 5 It is shown that the limit assembly includes a positioning plate 2 fixedly connected to the end of the operating table 1, the inner wall of the positioning plate 2 is rotatably connected to an adjusting plate 3, the end of the adjusting plate 3 away from the operating table 1 is fixedly connected to a mounting plate 4, and a plurality of adjusting grooves 5 are cut on the outer ring surface of the mounting plate 4, and the adjusting grooves 5 are convenient for the rotation of the adjusting rod 7, and the plurality of adjusting grooves 5 are distributed in a ring array around the central axis of the positioning plate 2, and the adjusting grooves 5 are arc-shaped, and the end of the positioning plate 2 away from the operating table 1 is fixedly connected to a plurality of fixed shafts 6 respectively corresponding to the plurality of adjusting grooves 5, and an adjusting rod 7 is rotatably sleeved on the outer surface of the fixed shaft 6, and a guide cylinder 8 is rotatably adjusted in the adjusting groove 5, which can limit the adjusting rod 7, and the adjusting rod 7 is away from the fixed One end of the shaft 6 movably passes through the adjacent guide cylinder 8 and is rotatably connected to the interference wheel 9. The end of the positioning plate 2 away from the operating table 1 is also rotatably connected to the cylinder 10. Those skilled in the art can select a suitable model of the cylinder 10 according to actual needs, for example: SCD50x100-100-LB. The protruding end of the cylinder 10 is rotatably connected to the push block 11, and the push block 11 is fixedly connected to the adjustment plate 3. The cylinder 10 is extended or retracted at the same time, so that the push block 11 moves, thereby driving the adjustment plate 3 to rotate, so that the multiple adjustment rods 7 rotate with the fixed shaft 6 as the center until the surfaces of the multiple interference wheels 9 fit the pipe, thereby clamping and fixing the outer surface of the pipe.

[0027] Figure 3 and Figure 6It is shown that: a receiving groove 12 is bored in the inner cavity of the operating table 1, and an operating groove communicating with the receiving groove 12 is bored through the right end of the operating table 1, so as to facilitate the maintenance of the electric swivel 13. The outer surface of the mounting block 14 is fixedly connected to the inner wall of the mounting groove, and the electric swivel 13 is rotatably connected in the receiving groove 12. Those skilled in the art can select a suitable type of electric swivel 13 according to actual needs, such as RPD165, which can drive the cutting head 16 to rotate, so as to perform rotary cutting on the pipe. A mounting groove is bored on the surface of the electric swivel 13, and a mounting block 14 is arranged in the mounting groove. A cylinder 2 15 is fixedly connected to a side of the mounting block 14 facing the central axis of the electric swivel 13. Those skilled in the art can select a suitable type of cylinder 2 15 according to actual needs, such as SCD50x100-100-LB, and a cutting head 16 is fixedly connected to the protruding end of the cylinder 2 15. The position of the cutting head 16 can be adjusted by telescoping the cylinder 2 15, so as to facilitate cutting of pipes of different sizes.

[0028] When cutting the pipe, the pipe is inserted into the operating table 1, and then the two cylinders 10 are started to extend or retract at the same time, so that the push block 11 moves, thereby driving the adjustment plate 3 to rotate, so that the multiple adjustment rods 7 rotate with the fixed shaft 6 as the center, until the surface of the multiple contact wheels 9 fits with the pipe. When the size is large, the adjustment plate 3 rotates counterclockwise, and when the size is small, the adjustment plate 3 rotates clockwise, so that it can adapt to pipes of different diameters, clamp and fix the outer surface of the pipe, so that the pipe is not easily restricted by length and size when it is fixed, and then the electric swivel 13 is started to drive the cutting head 16 to rotate with the central axis of the pipe as the center, so as to perform rotary cutting on the pipe, so that the pipe is not easily offset due to rotation when cutting, thereby effectively improving the cutting accuracy and cutting quality.

[0029] The second implementation method:

[0030] Based on the first embodiment, this embodiment adds a baffle 19, and the rest of the parts are consistent with the first embodiment.

[0031] Figure 7 It is shown that: baffles 19 are fixedly connected to the front and rear ends of the mounting block 14, and the baffle 19 fits with the outer ring surface of the electric swivel 13, so that the mounting block 14 can be limited and fixed. The baffle 19 and the electric swivel 13 are fixedly connected by bolts, so that the mounting block 14 and the electric swivel 13 are fixed, which is convenient for the later replacement and maintenance of the cutting head 16.

[0032] When replacing the cutting head 16, the bolt can be unscrewed through the operating slot, and then the mounting block 14 can be taken out to replace and maintain the cutting head 16 inside it, thereby effectively improving the cutting effect.

[0033] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A PE pipe rotary cutting device, comprising an operating table (1), characterized in that: Both front and rear ends of the operating table (1) are fixedly connected to a limit assembly, the limit assembly comprising a positioning plate (2) fixedly connected to the end of the operating table (1), the inner wall of the positioning plate (2) being rotatably connected to an adjustment plate (3), the end of the adjustment plate (3) away from the operating table (1) being fixedly connected to a mounting plate (4), the outer ring surface of the mounting plate (4) being bored with a plurality of adjustment grooves (5), the end of the positioning plate (2) away from the operating table (1) being fixedly connected to a plurality of fixed grooves (5) respectively corresponding to the plurality of adjustment grooves (5). A fixed shaft (6), an outer surface of the fixed shaft (6) is rotatably sleeved with an adjusting rod (7), a guide cylinder (8) is rotatably adjusted in the adjusting groove (5), one end of the adjusting rod (7) away from the fixed shaft (6) movably penetrates the adjacent guide cylinder (8) and is rotatably connected to a contact wheel (9), and one end of the positioning plate (2) away from the operating table (1) is also rotatably connected to a cylinder 1 (10), and the protruding end of the cylinder 1 (10) is rotatably connected to a push block (11), and the push block (11) is fixedly connected to the adjusting plate (3); The inner cavity of the operating table (1) is provided with a receiving groove (12), an electric rotating ring (13) is rotatably connected in the receiving groove (12), a mounting groove is formed on the surface of the electric rotating ring (13), a mounting block (14) is provided in the mounting groove, a side of the mounting block (14) facing the central axis of the electric rotating ring (13) is fixedly connected to a second cylinder (15), and a protruding end of the second cylinder (15) is fixedly connected to a cutting head (16).

2. A PE pipe rotary cutting device according to claim 1, characterized in that: The front end of the operating table (1) is fixedly connected to a support plate, the upper end of the support plate is fixedly connected to a support rod, the upper end of the support rod is fixedly connected to a positioning frame (17), and a support roller (18) is rotatably connected inside the positioning frame (17).

3. A PE pipe rotary cutting device according to claim 2, characterized in that: The outer surfaces of the support roller (18) and the abutment wheel (9) are both provided with rubber sleeves, and the support roller (18) is located directly in front of the positioning plate (2).

4. A PE pipe rotary cutting device according to claim 1, characterized in that: The plurality of adjustment grooves (5) are distributed in a ring array around the central axis of the positioning plate (2), and the adjustment grooves (5) are arc-shaped.

5. A PE pipe rotary cutting device according to claim 1, characterized in that: An operating groove communicating with the accommodating groove (12) is bored through the right end of the operating table (1), and the outer surface of the mounting block (14) is fixedly connected to the inner wall of the mounting groove.

6. A PE pipe rotary cutting device according to claim 1, characterized in that: The front and rear ends of the mounting block (14) are both fixedly connected with baffles (19), and the baffles (19) are fixedly connected to the electric swivel (13) via bolts.

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