PE pipe fitting edge trimmer
By designing a PE pipe trimming machine, a rotating mechanism driven by a power motor and transmission chain is used to cut pipes, solving the problems of burrs and length errors in pipes, and realizing an efficient and safe pipe trimming and blanking process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HUASHIDA MACHINERY
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
AI Technical Summary
In the production of PE pipe fittings, the fittings are prone to burrs or uneven edges, and the length error is large, which makes manual cutting by workers inefficient and unsafe.
A PE pipe trimming machine was designed, including a power motor, a transmission chain, a rotating mechanism, a clamping mechanism, and a cutting mechanism. The transmission chain drives the rotating mechanism to rotate and the cutting tool is used to cut and feed the pipe fittings, ensuring a smooth cut. The feeding device enables automatic feeding.
This technology enables the smoothing of pipe edges and precise length adjustment, improving cutting efficiency, reducing safety risks associated with manual operation, and ensuring cutting quality.
Smart Images
Figure CN224489290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe trimming machines, and more specifically, to a PE pipe trimming machine. Background Technology
[0002] A PE pipe trimming machine is a machine used to trim polyethylene (PE) pipes and fittings. It is commonly used in pipeline construction and processing to ensure that the cuts of the pipe fittings are smooth and even. It can quickly and accurately trim the cut surfaces of pipe fittings to make them suitable for welding or other processing techniques.
[0003] A search revealed that Chinese patent CN218283516U discloses a "tube rolling and trimming machine," comprising a tube rolling machine body, a support frame mounted on one side of the machine body, a linkage mechanism mounted on the support frame, an mounting frame mounted on the linkage mechanism, four first conveying shafts evenly spaced within the support frame, a power mechanism mounted at the lower end of the support frame, two connecting plates mounted on the power mechanism, and three moving openings on the support frame located between the four first conveying shafts, staggered with each of the four first conveying shafts. Two sliding members are slidably mounted within each of the three moving openings, and an abutment roller is mounted on the upper end of each sliding member, located above the first conveying shaft. This invention employs an integrated design, trimming the plate during conveying to ensure the smoothness of the rolled tube's rear wall, facilitating subsequent welding operations, ensuring welding quality, and improving the trimming effect. However, it still has the following drawbacks:
[0004] (1) In the production of PE pipe fittings, it is inevitable that the fittings will have burrs or uneven edges. In addition, the length of the fittings will also have a certain error. Many factories choose to have workers use handheld cutting machines to cut the edges of the fittings, which is inefficient and unsafe. Therefore, there is a need for a mechanical device that can smooth the edges of the pipe and slightly adjust the length of the fitting to reduce length errors.
[0005] (2) After the above-mentioned pipe fittings are cut, it is difficult to cut the cut pipe fittings into blanks. Therefore, a PE pipe fitting trimming machine is proposed. Utility Model Content
[0006] The purpose of this utility model is to address the current problems in PE pipe fitting production, where pipe fittings inevitably have burrs or uneven edges, and the pipe fitting length may also have certain errors. Many factories choose to have workers use handheld cutting machines to cut the edges of the pipe fittings, which is inefficient and unsafe.
[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:
[0008] The present invention is as follows: a PE pipe trimming machine includes a frame, a power motor fixedly connected to the top of the frame, a transmission chain provided on the side of the power motor, a rotating mechanism provided on the side of the transmission chain, a pressing mechanism provided on the top of the frame, a cutting mechanism provided on the top of the frame, and a locator provided on the top of the frame.
[0009] The transmission chain includes a first sprocket, the inner wall of which is fixedly connected to the output shaft of the power motor. A chain belt is provided on the circumferential surface of the first sprocket. A second sprocket is provided on the inner wall of the chain belt. The inner wall of the second sprocket is fixedly connected to the outer surface of the rotating mechanism. The rotating mechanism includes a rotating shaft. The circumferential surface of the rotating shaft rotates through the inner wall of the frame. A fixing plate is provided on the side of the rotating shaft. A groove is provided on the top of the rotating mechanism. The purpose of the groove is to prevent the cutter from piercing the rotating mechanism and damaging the cutter when the cutter is cutting downwards.
[0010] As a preferred technical solution of this utility model, the pressing mechanism includes a cylinder, the bottom of which is fixedly connected to the top of the frame. A force-bearing shaft is slidably connected to one end of the cylinder via a piston. A support plate is fixedly connected to the bottom of the force-bearing shaft. A roller is rotatably connected to the inner wall of the support plate. The function of the roller is to press down on the pipe and prevent it from shifting or twisting.
[0011] As a preferred technical solution of this utility model, the cutting mechanism includes a second cylinder. The bottom of the second cylinder is fixedly connected to the top of the frame. A force-bearing rod is slidably connected to one end of the second cylinder via a piston. A connecting rod is fixedly connected to the circumferential surface of the force-bearing rod. A cutting blade is fixedly connected to the side of the connecting rod. The function of the cutting blade is to cut the pipe fitting.
[0012] As a preferred technical solution of this utility model, the circumferential surface of the first sprocket engages with the inner wall of the chain belt, the inner wall of the chain belt engages with the circumferential surface of the second sprocket, the top of the cutter is located above the groove, and the number of the clamping mechanisms is set to two, which are arranged linearly along the vertical central axis of the frame. The function of the circumferential surface of the first sprocket engaging with the inner wall of the chain belt is to drive the chain belt to rotate when the first sprocket rotates. The function of setting the number of clamping mechanisms to two, and arranging them linearly along the vertical central axis of the frame, is to ensure that the pipe fittings can be smoothly clamped and kept in a horizontal state.
[0013] As a preferred technical solution of this utility model, a feeding device is provided on the side of the rotating mechanism. The feeding device includes a fixed plate, the side of which is fixedly connected to the side of the rotating mechanism. A drive motor is fixedly connected to the back side of the fixed plate. A threaded rotating rod is fixedly connected to the output shaft of the drive motor. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rotating rod. A push plate is fixedly connected to the circumferential surface of the threaded sleeve. An inclined plate is fixedly connected to the front side of the rotating mechanism. The function of the inclined plate is to allow the cut pipe to be fed along the inclined plate.
[0014] As a preferred technical solution of this utility model, a limiting rod is fixedly connected to the front side of the fixing plate, and the circumferential surface of the limiting rod slides through the inner wall of the push plate. The function of the limiting rod is to restrict the movement trajectory of the threaded sleeve.
[0015] As a preferred technical solution of this utility model, the bottom of the push plate is located above the rotating mechanism, and the number of the inclined plates is set to two, which are symmetrical about each other along the vertical central axis of the rotating mechanism. The purpose of setting the number of the inclined plates to two and symmetrical about each other along the vertical central axis of the rotating mechanism is to allow the pipe to be unloaded from both sides.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. The cutting device ensures that the cylinders of both the clamping mechanism and the cutting mechanism are in the retracted state. The PE pipe fitting that needs to be trimmed is threaded onto the rotating mechanism, and the cutting position is determined. The cylinder of the clamping mechanism extends, and the roller presses down on the pipe fitting, fixing it on the rotating mechanism. The positioner is adjusted to determine the cutting size. The power motor is started, and the transmission chain drives the rotating mechanism to rotate. The PE pipe fitting also rotates. At this time, the cutting mechanism is started, the cylinder extends, and the cutter pierces into the pipe fitting. As the pipe fitting rotates, the excess edge strip is cut off until the pipe fitting is completely cut around its circumference.
[0018] 2. The feeding device allows the threaded rod to rotate and drive the threaded sleeve to move. When the threaded sleeve moves, it can drive the push plate to move. When the push plate moves, it can push the cut pipe on the rotating mechanism. The pushed pipe will then be disengaged from the rotating mechanism by the inclined plate. Attached Figure Description
[0019] Figure 1 A schematic diagram of the structure of a PE pipe trimming machine provided by this utility model;
[0020] Figure 2 A cross-sectional view of the overall three-dimensional structure provided for this utility model;
[0021] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the feeding device provided by this utility model;
[0022] Figure 4 Provided by this utility model Figure 2 A three-dimensional magnified structural diagram at point A in the middle;
[0023] Figure 5 Provided by this utility model Figure 2 A three-dimensional magnified structural diagram at point B;
[0024] Figure 6 Provided by this utility model Figure 3 A three-dimensional magnified structural diagram at point C.
[0025] 1. Frame; 2. Power motor; 3. Transmission chain; 31. Sprocket 1; 32. Chain belt; 33. Sprocket 2; 4. Rotating mechanism; 41. Rotating shaft; 42. Fixing plate; 43. Groove; 5. Pressing mechanism; 51. Cylinder 1; 52. Force-bearing shaft; 53. Support plate; 54. Roller; 6. Cutting mechanism; 61. Cylinder 2; 62. Force-bearing rod; 63. Connecting rod; 64. Cutting blade; 7. Positioner; 8. Unloading device; 81. Fixing plate; 82. Drive motor; 83. Threaded rotating rod; 84. Threaded sleeve; 85. Push plate; 86. Inclined plate; 87. Limiting rod. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0030] like Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, this embodiment proposes a PE pipe trimming machine, including a frame 1, a power motor 2 fixedly connected to the top of the frame 1, a transmission chain 3 provided on the side of the power motor 2, a rotating mechanism 4 provided on the side of the transmission chain 3, a pressing mechanism 5 provided on the top of the frame 1, a cutting mechanism 6 provided on the top of the frame 1, and a locator 7 provided on the top of the frame 1.
[0031] The transmission chain 3 includes a first sprocket 31, the inner wall of which is fixedly connected to the output shaft of the power motor 2. A chain belt 32 is provided on the circumferential surface of the first sprocket 31, and a second sprocket 33 is provided on the inner wall of the chain belt 32. The inner wall of the second sprocket 33 is fixedly connected to the outer surface of the rotating mechanism 4. The rotating mechanism 4 includes a rotating shaft 41, the circumferential surface of which rotates through the inner wall of the frame 1. A fixing plate 42 is provided on the side of the rotating shaft 41. A groove 43 is provided on the top of the rotating mechanism 4. The function of the groove 43 is to prevent the cutter 64 from piercing the rotating mechanism 4 and damaging the cutter 64 when it cuts downwards.
[0032] like Figure 2 , Figure 5 As shown, in a preferred embodiment, based on the above method, the clamping mechanism 5 further includes a cylinder 51. The bottom of the cylinder 51 is fixedly connected to the top of the frame 1. One end of the cylinder 51 is slidably connected to a force-bearing shaft 52 via a piston. The bottom of the force-bearing shaft 52 is fixedly connected to a support plate 53. A roller 54 is rotatably connected to the inner wall of the support plate 53. The function of the roller 54 is to press down on the pipe and prevent the pipe from shifting or twisting.
[0033] like Figure 2 , Figure 5 As shown, in a preferred embodiment, based on the above method, the cutting mechanism 6 further includes a second cylinder 61. The bottom of the second cylinder 61 is fixedly connected to the top of the frame 1. A force-bearing rod 62 is slidably connected to one end of the second cylinder 61 through a piston. A connecting rod 63 is fixedly connected to the circumferential surface of the force-bearing rod 62. A cutter 64 is fixedly connected to the side of the connecting rod 63. The function of the cutter 64 is to cut the pipe.
[0034] like Figure 2 , Figure 4 , Figure 5As shown, in a preferred embodiment, based on the above method, the circumferential surface of sprocket 31 engages with the inner wall of chain belt 32, the inner wall of chain belt 32 engages with the circumferential surface of sprocket 33, the top of cutter 64 is located above groove 43, and the number of clamping mechanisms 5 is set to two, which are arranged linearly along the vertical central axis of frame 1. The function of the circumferential surface of sprocket 31 engaging with the inner wall of chain belt 32 is to drive chain belt 32 to rotate when sprocket 31 rotates. The function of setting the number of clamping mechanisms 5 to two, which are arranged linearly along the vertical central axis of frame 1, is to enable the pipe fitting to be clamped smoothly and kept in a horizontal state.
[0035] like Figure 3 , Figure 6 As shown, in a preferred embodiment, based on the above method, a feeding device 8 is further provided on the side of the rotating mechanism 4. The feeding device 8 includes a fixing plate 81, the side of the fixing plate 81 is fixedly connected to the side of the rotating mechanism 4, the back side of the fixing plate 81 is fixedly connected to a drive motor 82, the output shaft of the drive motor 82 is fixedly connected to a threaded rotating rod 83, the circumferential surface of the threaded rotating rod 83 is threadedly connected to a threaded sleeve 84, the circumferential surface of the threaded sleeve 84 is fixedly connected to a push plate 85, and the front side of the rotating mechanism 4 is fixedly connected to an inclined plate 86. The function of the inclined plate 86 is to allow the cut pipe to be fed along the inclined plate 86.
[0036] like Figure 6 As shown, in a preferred embodiment, based on the above method, a limiting rod 87 is further fixedly connected to the front side of the fixing plate 81. The circumferential surface of the limiting rod 87 slides through the inner wall of the push plate 85. The function of the limiting rod 87 is to limit the movement trajectory of the threaded sleeve 84.
[0037] like Figure 3 , Figure 5 As shown, in a preferred embodiment, based on the above method, the bottom of the push plate 85 is located above the rotating mechanism 4, and the number of inclined plates 86 is set to two, which are symmetrical about each other along the vertical central axis of the rotating mechanism 4. The purpose of setting the number of inclined plates 86 to two and symmetrical about each other along the vertical central axis of the rotating mechanism 4 is to allow the pipe to be unloaded from both sides.
[0038] Specifically, when using this pipe trimming machine: First, when the device is needed, the pipe is fixed on the fixing plate 42. Then, cylinder 51 is activated, causing the force shaft 52 to extend, which in turn drives the support plate 53 to extend. When the support plate 53 extends, it drives the roller 54 to extend, thus pressing down on the pipe and preventing it from shifting or twisting. When cylinder 51 retracts, the force shaft 52, through the support plate 53, drives the roller 54 to relax. The two pressing mechanisms 5, positioned one in front of the other, ensure the pipe is smoothly pressed and kept horizontal. When the power motor 2 rotates, it can pass through the sprocket 31, chain belt 32, and... The rotating mechanism 4 driven by sprocket 2 33 rotates, which in turn drives the fixed pipe to rotate. By activating cylinder 2 61, the force rod 62 drives the connecting rod 63 to move downward. When the connecting rod 63 moves downward, it drives the cutter 64 to move, so that the downward-moving cutter 64 can cut the pipe. After cutting, cylinder 2 61 drives the force rod 62 to retract, so that the force rod 62 drives the cutter 64 to rise and move away from the pipe through the connecting rod 63. The groove 43 on the rotating mechanism 4 can effectively prevent the blade tip from piercing the rotating mechanism 4 and damaging the cutter 64. The length of the cut edge can be adjusted by adjusting the positioner 7.
[0039] When the trimming machine is in standby mode, the cylinders of the clamping mechanism 5 and the cutting mechanism 6 are both in the retracted state. The PE pipe fitting that needs to be trimmed is put on the rotating mechanism 4 and the cutting position is determined. The cylinder of the clamping mechanism 5 extends, and the roller 54 presses down on the pipe fitting, fixing the pipe fitting on the rotating mechanism 4. The positioner 7 is adjusted to determine the cutting size. The power motor 2 is started, and the transmission chain 3 drives the rotating mechanism 4 to rotate. The PE pipe fitting also rotates. At this time, the cutting mechanism 6 is started, the cylinder extends, and the cutter 64 pierces into the pipe fitting. The pipe fitting rotates while the excess edge strip is cut off until the pipe fitting is cut a complete circle.
[0040] The cutting device 8 can be used to cut the pipe fittings. When the drive motor 82 is started, the output shaft of the drive motor 82 rotates, which can drive the threaded rod 83 to rotate. When the threaded rod 83 rotates, it can drive the threaded sleeve 84 to move. When the threaded sleeve 84 moves, it can drive the push plate 85 to move. When the push plate 85 moves, it can push the cut pipe fittings on the rotating mechanism 4. The pushed pipe fittings will then be disengaged from the rotating mechanism 4 by the inclined plate 86.
[0041] All technical features in this embodiment can be freely combined according to actual needs.
[0042] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A PE pipe trimming machine, comprising a frame (1), characterized in that, A power motor (2) is fixedly connected to the top of the frame (1), a transmission chain (3) is provided on the side of the power motor (2), a rotating mechanism (4) is provided on the side of the transmission chain (3), a pressing mechanism (5) is provided on the top of the frame (1), a cutting mechanism (6) is provided on the top of the frame (1), and a locator (7) is provided on the top of the frame (1). The transmission chain (3) includes a first sprocket (31), the inner wall of which is fixedly connected to the output shaft of the power motor (2), a chain belt (32) is provided on the circumferential surface of the first sprocket (31), a second sprocket (33) is provided on the inner wall of the chain belt (32), the inner wall of the second sprocket (33) is fixedly connected to the outer surface of the rotating mechanism (4), the rotating mechanism (4) includes a rotating shaft (41), the circumferential surface of which rotates through the inner wall of the frame (1), a fixing plate (42) is provided on the side of the rotating shaft (41), and a groove (43) is provided on the top of the rotating mechanism (4).
2. The PE pipe trimming machine according to claim 1, characterized in that, The pressing mechanism (5) includes a cylinder (51), the bottom of which is fixedly connected to the top of the frame (1). A force-bearing shaft (52) is slidably connected to one end of the cylinder (51) via a piston. A support plate (53) is fixedly connected to the bottom of the force-bearing shaft (52). A roller (54) is rotatably connected to the inner wall of the support plate (53).
3. A PE pipe trimming machine according to claim 1, characterized in that, The cutting mechanism (6) includes a second cylinder (61), the bottom of which is fixedly connected to the top of the frame (1). A force rod (62) is slidably connected to one end of the second cylinder (61) via a piston. A connecting rod (63) is fixedly connected to the circumferential surface of the force rod (62), and a cutter (64) is fixedly connected to the side of the connecting rod (63).
4. A PE pipe trimming machine according to claim 3, characterized in that, The circumferential surface of the first sprocket (31) meshes with the inner wall of the chain belt (32), the inner wall of the chain belt (32) meshes with the circumferential surface of the second sprocket (33), the top of the cutter (64) is located above the groove (43), and the number of the clamping mechanism (5) is set to two, and they are arranged in a linear array along the vertical central axis of the frame (1).
5. A PE pipe trimming machine according to claim 1, characterized in that, The rotating mechanism (4) is provided with a feeding device (8) on its side. The feeding device (8) includes a fixing plate (81). The side of the fixing plate (81) is fixedly connected to the side of the rotating mechanism (4). The back side of the fixing plate (81) is fixedly connected to a drive motor (82). The output shaft of the drive motor (82) is fixedly connected to a threaded rotating rod (83). The circumferential surface of the threaded rotating rod (83) is threadedly connected to a threaded sleeve (84). The circumferential surface of the threaded sleeve (84) is fixedly connected to a push plate (85). The front side of the rotating mechanism (4) is fixedly connected to an inclined plate (86).
6. A PE pipe trimming machine according to claim 5, characterized in that, A limiting rod (87) is fixedly connected to the front side of the fixing plate (81), and the circumferential surface of the limiting rod (87) slides through the inner wall of the push plate (85).
7. A PE pipe trimming machine according to claim 5, characterized in that, The bottom of the push plate (85) is located above the rotating mechanism (4), and the number of the inclined plates (86) is set to two, which are symmetrical to each other along the vertical central axis of the rotating mechanism (4).