Anti-cracking high-strength polyethylene gas pipeline production device
By designing a polyethylene gas pipeline production device for fixed and adjusting disks with multi-cutting machines and ring-shaped structures, the problems of low cutting efficiency and poor adaptability in the prior art are solved, and efficient and accurate pipeline cutting is achieved.
Patent Information
- Application Number
- CN202421657276.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-13
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-13
AI Technical Summary
The existing polyethylene gas pipe production equipment is inefficient in the cutting process and is difficult to adapt to pipe clamping and cutting of different sizes and diameters.
A crack-proof high-strength polyethylene gas pipeline production device is designed, and a plurality of cutting machines evenly distributed along the circumference and a ring-like structure fixed disk and adjustment disk are used to cut the pipe inward simultaneously through multiple cutting machines, and combined with the clamping of the adjustment clamping blocks, stable cutting of the pipe is achieved.
The device can improve cutting efficiency, ensure accurate and neat cutting, and adapt to pipe clamping and cutting of different sizes and diameters.
Smart Images
Figure CN222844709U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anti-cracking high-strength polyethylene gas pipeline production equipment, in particular to an anti-cracking high-strength polyethylene gas pipeline production equipment. Background Art
[0002] Crack-resistant high-strength polyethylene (PE) gas pipes have been widely used in gas transmission, water supply, sewage discharge, agricultural irrigation and other fields due to their excellent corrosion resistance, light weight, long service life and simple construction. The production of polyethylene gas pipes mainly includes: raw material preparation, selecting suitable polyethylene resin as the main raw material, and adding various additives as needed to improve its performance; extrusion molding; heating and melting the mixed material into the extruder for extrusion molding. The temperature and pressure need to be controlled during the extrusion process to ensure the quality of the pipe; cooling and cutting, the extruded pipe needs to be cooled and shaped, and then cut to form the required length of the pipe.
[0003] The existing polyethylene gas pipe production cutting device uses a single circular cutting blade for cutting. At the beginning of cutting, the blade contacts the gas pipe at one point. As the cutting progresses, the cutting surface gradually becomes an arc, and the cutting resistance gradually increases. This results in reduced cutting efficiency and a longer time required to complete the cutting task. In addition, since the rubber material is relatively soft and has a certain degree of stretchability, errors are prone to occur when using a single downward cutting method during the cutting process. The cutting fixture can only be adjusted horizontally and cannot be applied to gas pipes of various models and sizes. Utility Model Content
[0004] The utility model aims to provide a crack-proof high-strength polyethylene gas pipeline production device, which is suitable for clamping and cutting pipelines with different diameters.
[0005] The anti-crack high-strength polyethylene gas pipeline production device comprises a base, on which three fixed disks are arranged at intervals from left to right and in an annular structure, the fixed disks are arranged to be connected to each other from left to right and their center lines coincide, and the fixed disks are provided with a plurality of sliding holes evenly spaced along the circumference and connected to each other from left to right, the fixed disks are sequentially arranged from right to left as the first fixed disk, the second fixed disk and the third fixed disk, and the first fixed disk can rotate forward and backward;
[0006] The sliding holes on the second fixed disk and the third fixed disk are arranged symmetrically on the left and right. An adjusting disk that can rotate forward and backward and has a ring-shaped structure is provided between the second fixed disk and the third fixed disk and on the right side of the first fixed disk. The center line of the adjusting disk coincides with the center line of the fixed disk and the inner ring diameter is greater than or equal to the inner ring diameter of the fixed disk. The positions of the adjusting disk corresponding to the sliding holes are provided with arc-shaped holes that are connected to the left and right. The adjusting disk between the second fixed disk and the third fixed disk is the first adjusting disk, and the adjusting disk located on the right side of the first fixed disk is the second adjusting disk.
[0007] The inner sides of the second fixing plate and the third fixing plate are evenly spaced along the circumference to provide clamping blocks for clamping the pipe in a "mouth"-shaped structure, the horizontal portion of the top of the "mouth"-shaped structure horizontally passes through the inner areas of the second fixing plate and the third fixing plate; the horizontal portion of the bottom independently passes through the sliding hole on the third fixing plate, the arc-shaped hole on the first adjusting plate, and the sliding hole on the second fixing plate in sequence; the vertical portions on both sides are respectively located on the right side of the second fixing plate and the left side of the third fixing plate;
[0008] When the first adjusting disk rotates, it drives the clamping block to move toward the center of the circle along the sliding hole to clamp the pipe;
[0009] A plurality of cutters are installed on the left side wall of the first fixed disk at even intervals along the circumference, and sliders are fixed on the cutters. The sliders are independently inserted into the sliding holes on the first fixed disk and the arc holes on the second adjusting disk. When the second adjusting disk rotates, the cutters are driven toward the center of the circle, and the first fixed disk rotates, driving the cutters to cut the pipe.
[0010] The pipe is passed through the inner side of the inner ring of the fixed disk and the adjusting disk independently, and the first adjusting disk is rotated. The part of the clamping block passing through the sliding hole and the arc hole slides along the arc hole on the first adjusting disk under the limit of the sliding hole, driving the clamping block to approach the center of the circle along the sliding hole to clamp the pipe; the second adjusting disk is rotated, and the slider slides along the arc hole on the second adjusting disk under the limit of the sliding hole on the first fixed disk, driving the cutting machine to approach the center of the circle, and the first fixed disk is rotated to drive the cutting machine to cut the pipe; the pipe is cut inwardly at the same time by multiple cutting machines evenly distributed along the circumference, and the pipe is evenly stressed during cutting. At the same time, the pipe is clamped inwardly by adjusting the clamping block, which ensures stability during the cutting process and adapts to the clamping and cutting of pipes of different diameters. The cutting is accurate, neat and efficient.
[0011] Furthermore, a support ring with an annular structure is installed on the inner ring wall of the fixed disk, the first adjustment disk is connected to the support rings on the second fixed disk and the third fixed disk respectively, and the support ring on the first fixed disk is connected to the second adjustment disk.
[0012] The first adjusting disk is rotatably connected between the second fixed disk and the third fixed disk through the support ring, and the second adjusting disk is rotatably connected to the first fixed disk, which can not only rotate the first adjusting disk and the second adjusting disk, but also support the first adjusting disk and the second adjusting disk respectively.
[0013] Furthermore, the portion of the support ring on the first fixed plate located on the right side of the second adjusting plate is connected to a first gear, and a first driving assembly driving the first gear to rotate is installed on the first gear;
[0014] A bearing is installed on the outer side wall of the first fixed plate. The first fixed plate can rotate in the bearing along the front-rear direction. The bearing is installed on the base.
[0015] The first driving assembly drives the first gear to rotate, driving the second adjusting disk and the first fixed disk to rotate simultaneously, and the cutting machine approaches toward the center of the circle, and while cutting the pipe, it rotates along the circumference of the pipe to perform cutting, with fast cutting speed and high efficiency.
[0016] Furthermore, the driving component is a motor, and a power output end of the motor is connected to the first gear.
[0017] The motor drives the first gear to rotate, saving time and effort.
[0018] Furthermore, the first gear is connected to a second gear that meshes with each other, and the second gear is mounted on the rotating shaft of the motor.
[0019] The motor drives the second gear to rotate, thereby driving the first gear to rotate, and the second gear facilitates the connection between the first gear and the motor.
[0020] Furthermore, the adjusting disk is provided with a waist-shaped hole inclined toward the center of the circle, and a connecting block capable of sliding along the waist-shaped hole is independently installed in the waist-shaped hole, and the connecting block is connected to a telescopic rod, one end of the telescopic rod is connected to the adjusting disk, and the other end is connected to a second driving component for driving the telescopic rod to extend and retract;
[0021] When the telescopic rod is extended or retracted, the connecting block slides along the waist-shaped hole, driving the adjusting plate to swing back and forth.
[0022] The telescopic rod drives the first adjusting disk to swing, thereby driving the clamping block to clamp inwards; the telescopic rod drives the second adjusting disk to swing, thereby driving the slide block to move inwards along the slide hole of the first fixed disk to cut the pipe.
[0023] Furthermore, the second driving assembly is a cylinder, a piston rod of the cylinder is connected to the telescopic rod, and a cylinder body of the cylinder is mounted on a fixed plate.
[0024] The cylinder drives the telescopic rod to extend and retract forward and backward, saving time and effort.
[0025] Furthermore, a shell is installed on the base, and a through hole is opened on the shell, through which the pipeline can pass independently and is connected to the left and right.
[0026] The shell can protect the fixed disk, the adjusting disk, the cutting machine, the first gear, the second gear, the motor and other components on the base, and protect the staff.
[0027] Furthermore, the inner side wall of the housing and the base are provided with corresponding annular grooves corresponding to the adjusting disk and the bearing, wherein the first adjusting disk corresponds to the first annular groove, the bearing corresponds to the second annular groove, and the second adjusting disk corresponds to the third annular groove;
[0028] A first arc groove is formed on the base corresponding to the second gear, and a second arc groove is formed on the inner side wall of the shell between the first fixed plate and the second fixed plate.
[0029] The grooves opened on the shell and the base together form an annular structure, which are the first annular groove, the second annular groove and the third annular groove, which facilitate the first adjustment disk to rotate back and forth in the first annular groove, the second adjustment disk to rotate back and forth in the third annular groove, and the bearing seat of the bearing is installed in the third annular groove; the first arc groove facilitates the installation of the second gear; the second arc groove facilitates the cutting machine to cut in the space between the second arc groove and the shell.
[0030] Furthermore, a rectangular groove is provided on the base below the cutting machine, and a collection box is placed in the rectangular groove.
[0031] The collection box is convenient for collecting the debris dropped after the cutting machine cuts the pipe, which is convenient for cleaning and recycling.
[0032] Compared with the prior art, the utility model has the following beneficial effects:
[0033] The pipe is passed through the inner side of the inner ring of the fixed disk and the adjusting disk independently, and the first adjusting disk is rotated. The part of the clamping block passing through the sliding hole and the arc hole slides along the arc hole on the first adjusting disk under the limit of the sliding hole, driving the clamping block to approach the center of the circle along the sliding hole to clamp the pipe; the second adjusting disk is rotated, and the slider slides along the arc hole on the second adjusting disk under the limit of the sliding hole on the first fixed disk, driving the cutting machine to approach the center of the circle, and the first fixed disk is rotated to drive the cutting machine to cut the pipe; the pipe is cut inwardly at the same time by multiple cutting machines evenly distributed along the circumference, and the pipe is evenly stressed during cutting. At the same time, the pipe is clamped inwardly by adjusting the clamping block, which ensures stability during the cutting process and adapts to the clamping and cutting of pipes of different diameters. The cutting is accurate, neat and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0034] Figure 1 This is a schematic diagram of the main structure of a crack-resistant high-strength polyethylene gas pipeline production device;
[0035] Figure 2 for Figure 1Schematic diagram of the cross-sectional structure along line AA;
[0036] Figure 3 for Figure 1 The schematic diagram of the cross-sectional structure along the BB line;
[0037] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure along the CC line;
[0038] Figure 5 for Figure 1 Schematic diagram of the cross-sectional structure along the DD line;
[0039] Figure 6 for Figure 1 A schematic diagram of the structure of the middle shell and the base;
[0040] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the middle shell after partial sectioning;
[0041] Figure 8 This is a schematic diagram of the explosion structure of a crack-resistant high-strength polyethylene gas pipeline production device.
[0042] The names of the components in the figure are: 1. Clamping block; 2. First adjusting plate; 3. Shell; 4. Bearing; 5. Second adjusting plate; 6. Slider; 7. First gear; 8. Cutting machine; 9. First fixed plate; 10. Base; 11. Collecting box; 12. Second fixed plate; 13. Third fixed plate; 14. Cylinder; 15. Waist-shaped hole; 16. Sliding hole; 17. Arc hole; 18. Second gear; 19. Motor; 20. First arc groove; 21. First annular groove; 22. Second annular groove; 23. Third annular groove; 24. Second arc groove; 25. Rectangular groove; 26. Support ring. DETAILED DESCRIPTION
[0043] The present invention is further described below through specific embodiments in conjunction with the accompanying drawings, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
[0044] Example
[0045] This embodiment uses the following materials:
[0046] 1. Prepare some corrosion-resistant and high-strength materials such as stainless steel to make the clamping block 1, the first adjusting plate 2, the housing 3, the second adjusting plate 5, the slider 6, the first fixed plate 9, the base 10, the collecting box 11, the second fixed plate 12, the third fixed plate 13, and the slider 6;
[0047] 2. Prepare one first gear 7, one second gear 18 and one bearing 4;
[0048] 3. Prepare two cylinders 14 and three cutting machines 8;
[0049] 4. Prepare one motor 19, two support rings 26, and two connecting blocks.
[0050] The above materials are assembled as follows:
[0051] Step 1: Production
[0052] Make three clamping blocks 1; Figure 1 and Figure 8 As shown, the main body of the clamping block 1 is in the shape of a "mouth", combined with Figure 8 As shown, in Figure 1 The horizontal part at the top of the middle clamping block 1 is a cylindrical structure, and the horizontal part can be replaced with a bearing according to the use requirements.
[0053] Make a first adjustment disk 2; Figure 1 and 2 As shown, the main body of the first adjustment disk 2 is a circular ring structure; Figure 2 As shown, three equally spaced arc holes 17 are provided on the first adjusting disk 2 and are distributed circumferentially, and the two ends of the arc holes 17 are respectively close to the inner ring and the outer ring of the first adjusting disk 2; a gap with a "7"-shaped edge is provided between the two arc holes 17, and an inclined waist-shaped hole 15 is provided on the first adjusting disk 2 at the edge of the gap.
[0054] Make three sliders 6, such as Figure 1 As shown, the main body of the slider 6 is in an inverted "L" shape, and the right end of the horizontal part of the slider 6 is connected to a stepped cylinder.
[0055] One base 10 and one shell 3 are manufactured.
[0056] Make a second adjustment disk 5, such as Figure 8 As shown, the second adjustment disk 5 and the first adjustment disk 2 have the same main structure and are processed in the same way; Figure 5 As shown, a cylindrical mounting groove for mounting the upper slide block 6 is provided at the arc-shaped hole 17 of the second adjusting disk 5 .
[0057] Make a second fixed plate 12; Figure 3 As shown, the main body of the second fixed disk 12 is a circular ring structure, and the second fixed disk 12 is provided with three sliding grooves (16) which are evenly spaced and distributed in a circle and face the center of the circle.
[0058] Make a second fixed plate 12 and a third fixed plate 13; Figure 8 As shown, the second fixing plate 12 and the third fixing plate 13 have the same structure as the first fixing plate 9 and are processed by the same method.
[0059] like Figure 2 and Figure 6 As shown, the main body of the base 10 is a square block structure; Figure 2 As shown, both ends of the top of the base 10 are chamfered to provide a cutting area space, such as Figure 5 As shown, a first arc-shaped groove 20 is provided on the right half of the inner side of the base 10 for mounting the second gear 18;
[0060] like Figure 1 , Figure 7 and Figure 8 As shown, the housing 3 is a 3 / 4 circular structure; a circular through hole communicating with each other is provided at the center of the left and right side walls, and the size thereof is consistent with the inner ring diameter of the first adjusting disk 2;
[0061] like Figure 6 As shown, three arc grooves are opened on the base 10, and three arc grooves corresponding to the arc grooves on the base 10 are opened on the inner side wall of the shell 3, which are combined into a ring-shaped groove, respectively serving as the first annular groove 21, the second annular groove 22 and the third annular groove 23; a second arc groove 24 is opened on the inner side wall of the shell 3 between the first annular groove 21 and the second annular groove 22.
[0062] like Figure 6 As shown, a rectangular groove 25 is provided at the center of the top of the base 10 ; and a connecting hole penetrating through the center of the first arc groove 20 is provided on the base 10 .
[0063] Make a collection box 11; Figure 4 and Figure 8 As shown, the main body of the collecting box 11 is a rectangular parallelepiped structure, the interior is hollow, and the top surface is open.
[0064] Step 2: Assembly
[0065] like Figure 1 As shown, the base 10 is placed horizontally; Figure 5 As shown, the second gear 18 is installed in the first arc groove 20, and the motor 19 is installed through the connecting hole of the base 10 and connected to the second gear 18;
[0066] like Figure 1 and Figure 6 As shown, the bearing 4 is installed in the second annular groove 22, and the outer wall of the first fixed plate 9 is installed on the inner ring of the bearing 4; the right side of the first fixed plate 9 is fixedly connected to the support ring 26; the second adjustment plate 5 is mounted on the support ring 26, and the right end of the support ring 26 is connected to the first gear 7, and the first gear 7 and the second gear 18 are meshed with each other;
[0067] like Figure 1As shown, the slider 6 is installed in the sliding hole 16 of the first fixed plate 9, and the right end of the slider 6 is connected to the arc hole 17 of the second adjustment plate 5; Figure 4 As shown, a cutting machine 8 is installed on the slider 6;
[0068] like Figure 1 As shown, the second fixed disk 12 and the third fixed disk 13 are fixedly installed on both sides of the first annular groove 21 respectively, the first adjustment disk 2 is placed between the second fixed disk 12 and the third fixed disk 13, and the arc hole 17 is aligned with the slide hole 16; the support ring 26 passes through both ends of the first adjustment disk 2 and is fixed to the second fixed disk 12 and the third fixed disk 13; the clamping block 1 is installed on the inner side of the second fixed disk 12, the third fixed disk 13 and the first adjustment disk 2 through the arc hole 17 and the slide hole 16;
[0069] like Figure 2 As shown, the cylinder 14 is mounted on the second fixed plate 12 and the first fixed plate 9, respectively, and the push rod of the cylinder 14 is connected to the connecting blocks in the waist-shaped holes 15 of the first adjustment plate 2 and the second adjustment plate 5, respectively; Figure 7 As shown, the collecting box 11 is placed in the rectangular groove 25; the push rod can also be connected to the connecting block by a piston rod connected to a telescopic rod; other telescopic connection methods can also be used.
[0070] Mount the housing 3 on the top of the base 10;
[0071] Instructions for use are as follows:
[0072] When in use, the cooled and formed polyethylene gas pipe is inserted from the end of the first gear 7 through a traction machine. After reaching the appropriate position, the cylinder 14 of the first adjusting disk 2 is started first. Through the cooperation of the arc hole 17 and the sliding hole 16, the clamping block 1 is retracted inward to clamp the polyethylene gas pipe. Then the cylinder 14 of the second adjusting disk 5 is started to retract the slider 6 and the cutter 8 inward. After the cutter 8 reaches the appropriate position according to the diameter of the polyethylene gas pipe; the motor 19 is started, and the first fixed disk 9 is driven to rotate through the engagement of the second gear 18 and the first gear 7, so that the cutter 8 cuts the polyethylene gas pipe along the circumference; the cutting debris falls into the collection box 11.
[0073] In the above scheme, through the cooperation of the sliding hole 16 and the arc hole 17, the clamping block 1 can be moved synchronously toward the center to clamp the polyethylene gas pipe. Clamping the pipe during cutting can improve the processing accuracy and cutting stability, and make the clamping size range larger; by cutting the polyethylene gas pipe along the circumference, the resistance during cutting can be reduced, the cutting accuracy and work efficiency can be improved, and the service life of the cutting blade can be increased.
Claims
1. A crack-resistant high-strength polyethylene gas pipeline production device, comprising a base (10), characterized in that: The base (10) is provided with three fixed disks which are spaced apart from each other and are of annular structure. The fixed disks are all arranged to be connected to each other from left to right and their center lines coincide with each other. The fixed disks are each provided with a plurality of sliding holes (16) which are evenly spaced apart along the circumference and are connected to each other from left to right. The fixed disks are, from right to left, a first fixed disk (9), a second fixed disk (12) and a third fixed disk (13). The first fixed disk (9) can rotate forward and backward. The sliding holes (16) on the second fixed disk (12) and the third fixed disk (13) are arranged symmetrically on the left and right. An adjusting disk that can rotate forward and backward and has a ring-shaped structure is arranged between the second fixed disk (12) and the third fixed disk (13) and on the right side of the first fixed disk (9). The center line of the adjusting disk coincides with the center line of the fixed disk and the inner ring diameter is greater than or equal to the inner ring diameter of the fixed disk. The positions of the adjusting disk corresponding to the sliding holes (16) are provided with arc-shaped holes (17) that are connected to the left and right. The adjusting disk between the second fixed disk (12) and the third fixed disk (13) is the first adjusting disk (2), and the adjusting disk located on the right side of the first fixed disk (9) is the second adjusting disk (5). Clamping blocks (1) in the shape of a "mouth" are evenly spaced along the circumference of the inner sides of the second fixed plate (12) and the third fixed plate (13) for clamping the pipe. The horizontal portion of the top of the "mouth"-shaped structure passes through the inner areas of the second fixed plate (12) and the third fixed plate (13) in a transverse direction; the horizontal portion of the bottom passes through the sliding hole (16) on the third fixed plate (13), the arc-shaped hole (17) on the first adjustment plate (2) and the sliding hole (16) on the second fixed plate (12) in sequence and independently; the vertical portions on both sides are respectively located on the right side of the second fixed plate (12) and the left side of the third fixed plate (13); When the first adjusting disk (2) rotates, it drives the clamping block (1) to move closer to the center of the circle along the sliding hole (16) to clamp the pipe; A plurality of cutting machines (8) are evenly spaced along the circumference of the left side wall of the first fixed disk (9), and a slider (6) is fixed on each of the cutting machines (8). The slider (6) is independently inserted into a sliding hole (16) on the first fixed disk (9) and an arc-shaped hole (17) on the second adjusting disk (5). When the second adjusting disk (5) rotates, the cutting machine (8) is driven to approach the center of the circle, and the first fixed disk (9) rotates, driving the cutting machine (8) to cut the pipe.
2. The anti-cracking high-strength polyethylene gas pipeline production device according to claim 1 is characterized in that: A support ring (26) with an annular structure is installed on the inner ring wall of the fixed disk, the first adjustment disk (2) is connected to the support rings (26) on the second fixed disk (12) and the third fixed disk (13) respectively, and the support ring (26) on the first fixed disk (9) is connected to the second adjustment disk (5).
3. The anti-cracking high-strength polyethylene gas pipeline production device according to claim 2 is characterized in that: The portion of the support ring (26) on the first fixed disk (9) located on the right side of the second adjustment disk (5) is connected to a first gear (7), and a first driving component for driving the first gear (7) to rotate is installed on the first gear (7); A bearing (4) is installed on the outer wall of the first fixed plate (9). The first fixed plate (9) can rotate in the bearing (4) along the front-rear direction. The bearing (4) is installed on the base (10).
4. The anti-cracking high-strength polyethylene gas pipeline production device according to claim 3 is characterized in that: The driving component is a motor (19), and a power output end of the motor (19) is connected to the first gear (7).
5. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 4 is characterized in that: The first gear (7) is connected to a second gear (18) which is meshed with each other, and the second gear (18) is mounted on the rotating shaft of the motor (19).
6. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 5 is characterized in that: The adjusting disk is provided with a waist-shaped hole (15) inclined toward the center of the circle, a connecting block capable of sliding along the waist-shaped hole (15) is independently installed in the waist-shaped hole (15), the connecting block is connected to a telescopic rod, one end of the telescopic rod is connected to the adjusting disk, and the other end is connected to a second driving component for driving the telescopic rod to extend and retract; When the telescopic rod is extended or retracted, the connecting block slides along the waist-shaped hole (15), driving the adjusting plate to swing back and forth.
7. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 6 is characterized by: The second driving component is a cylinder (14), the piston rod of the cylinder (14) is connected to the telescopic rod, and the cylinder body of the cylinder (14) is installed on the fixed plate.
8. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 7 is characterized in that: A shell (3) is mounted on the base (10), and the shell (3) is provided with through holes through which pipes can independently pass and which are connected to the left and right.
9. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 8, characterized in that: The inner side wall of the housing (3) and the base (10) are provided with corresponding annular grooves corresponding to the adjusting disc and the bearing (4), wherein the first adjusting disc (2) corresponds to a first annular groove (21), the bearing (4) corresponds to a second annular groove (22), and the second adjusting disc (5) corresponds to a third annular groove (23); A first arc-shaped groove (20) is provided on the base (10) corresponding to the second gear (18), and a second arc-shaped groove (24) is provided on the inner side wall of the housing (3) between the first fixed disk (9) and the second fixed disk (12).
10. The crack-resistant high-strength polyethylene gas pipeline production device according to claim 9, characterized in that: A rectangular groove (25) is provided on the base (10) below the cutting machine (8), and a collection box (11) is placed in the rectangular groove (25).