Plastic pipe cutting device
The plastic tube cutting device with a bidirectional screw and moving block structure solves the problem of uneven cuts caused by rolling during the cutting process, achieving both cut smoothness and cutting accuracy, and facilitating the replacement of the clamping plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海毅弋自动化科技有限公司
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-12
AI Technical Summary
Existing plastic pipe cutters are prone to uneven cuts due to pipe rolling during the cutting process, affecting sealing and stability, and also resulting in large dimensional deviations.
It adopts a bidirectional screw and moving block structure, and uses a clamping plate to limit and fix the plastic tube. Combined with gear and synchronous toothed belt drive, it ensures cutting accuracy; the clamping plate can be quickly disassembled and replaced.
It effectively prevents pipe rolling, ensures cut smoothness and cutting accuracy, and improves service life and fixing effect.
Smart Images
Figure CN224223986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting technology, and in particular to a plastic pipe cutting device. Background Technology
[0002] Plastic pipes are tubular plastic products made from synthetic resins such as polyethylene, polyvinyl chloride, and polypropylene as the main raw materials, through molding processes such as extrusion, injection molding, and blow molding. In various projects, plastic pipes need to be cut into appropriate lengths and shapes according to the actual installation environment and design requirements. There are many tools for cutting plastic pipes, among which the plastic pipe cutter is a common one. It has a simple overall structure and is easy to operate, so it is widely used in various projects.
[0003] Currently, when using existing plastic pipe guillotines, workers place the plastic pipe to be cut directly under the guillotine, and then rotate the screw to move the blade downwards to complete the cutting work. Since the surface of plastic pipes is usually quite smooth, they are prone to rolling when subjected to external force. This rolling of the pipe causes the guillotine to deviate from its cutting position and fail to cut along the predetermined cutting line, resulting in uneven cuts such as serrated, wavy, or beveled edges. This affects the sealing and stability of the pipe connection and causes deviations in pipe dimensions. Therefore, we propose a plastic pipe cutting device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a plastic pipe cutting device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A plastic pipe cutting device includes a plastic pipe guillotine. A connecting block is provided above the plastic pipe guillotine, and a connecting groove is provided inside the connecting block. A bidirectional screw is connected to the inner wall of the connecting groove through a bearing. Two sets of moving blocks are sleeved on the outer side of the bidirectional screw, and clamping plates are respectively provided below the two sets of moving blocks.
[0007] Preferably, there are two sets of connecting blocks and bidirectional screws, and the two sets of connecting blocks and bidirectional screws are symmetrically distributed about the central axis of the plastic tube cutter.
[0008] Preferably, one end of each of the two sets of bidirectional screws extends to the outside of the connecting block and is connected to a rotating shaft, and a gear is fixedly sleeved on the outside of each rotating shaft. A synchronous toothed belt meshes with the outside of the gear, and limit rings are symmetrically distributed on the side of the gear. The limit rings are fixedly sleeved on the outside of the rotating shaft, and a handwheel is connected to the end of one set of rotating shafts away from the bidirectional screw.
[0009] Preferably, the two sets of connecting blocks are connected on their adjacent sides by a mounting block, and the interior of the mounting block is connected to the top of the plastic pipe cutter by bolts.
[0010] Preferably, the outer side of the clamping plate is bonded with a rubber block, and the outer surface of the rubber block is uniformly distributed with anti-slip particles.
[0011] Preferably, the bottom end of the movable block is connected to a docking block, the top of the clamping plate is provided with a slot adapted to the docking block, a connecting rod is inserted horizontally into the top of the clamping plate, and the end of the connecting rod is connected to a connecting plate, and the inside of the docking block is provided with a through groove adapted to the connecting rod.
[0012] Preferably, the inner wall of the through groove is provided with internal threads, and the outer surface of the connecting rod is provided with external threads.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. This device, equipped with a bidirectional screw and a moving block, can clamp and limit the pipe during the cutting process by working together with the bidirectional screw and the moving block. This effectively prevents the pipe from rolling under force during the cutting process, thus ensuring the flatness of the cut and the accuracy of the cutting.
[0015] 2. This device is equipped with a docking block and a connecting rod. During use, the docking block and the connecting rod work together to facilitate the quick disassembly and replacement of the clamping plate that has reached the end of its service life, so as to effectively ensure its subsequent fixation effect on the pipeline. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a plastic pipe cutting device proposed in this utility model;
[0017] Figure 2 for Figure 1 A three-dimensional cross-sectional view of the bidirectional screw and moving block structure in the diagram;
[0018] Figure 3 for Figure 1 A three-dimensional schematic diagram of the connecting block and rotating shaft structure in the diagram;
[0019] Figure 4 for Figure 1 A three-dimensional cross-sectional schematic diagram of the gear and synchronous belt structure in the image;
[0020] Figure 5 for Figure 1 A three-dimensional cross-sectional diagram of the docking block and connecting rod structure.
[0021] In the diagram: 1. Plastic pipe cutter; 2. Connecting block; 3. Connecting groove; 4. Bidirectional screw; 5. Moving block; 6. Clamping plate; 7. Rubber block; 8. Rotating shaft; 9. Gear; 10. Synchronous toothed belt; 11. Limiting ring; 12. Handwheel; 13. Connecting block; 14. Connecting rod; 15. Connecting disc; 16. Mounting block. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1-5 A plastic pipe cutting device includes a plastic pipe guillotine 1, a connecting block 2 above the plastic pipe guillotine 1, and a connecting groove 3 inside the connecting block 2. The cutting principle and method of the plastic pipe guillotine 1 for cutting plastic pipes are existing well-known technologies and will not be elaborated here. A bidirectional screw 4 is connected to the inner wall of the connecting groove 3 through a bearing, and two sets of moving blocks 5 are sleeved on the outer side of the bidirectional screw 4. A clamping plate 6 is provided below the two sets of moving blocks 5 respectively. Two sets of external threads in opposite directions are opened on the outer surface of the bidirectional screw 4, and internal threads that are adapted to the clamping plate 6 are opened inside the moving blocks 5. Therefore, when the bidirectional screw 4 rotates in both directions, the two sets of moving blocks 5 on its outer side can drive the two sets of clamping plates 6 to move closer or further apart, thereby completing the fixing of the pipe or releasing the restriction of the pipe.
[0024] Furthermore, refer to Figure 1 , Figure 2 and Figure 3 It can be seen that there are two sets of connecting blocks 2 and bidirectional screws 4, and the two sets of connecting blocks 2 and bidirectional screws 4 are symmetrically distributed about the central axis of the plastic pipe cutter 1. In use, since there are two sets of connecting blocks 2 and bidirectional screws 4, there are also two sets of moving blocks 5 and clamping plates 6. The setting of two sets of clamping plates 6 can effectively improve the fixing effect of the pipe.
[0025] Furthermore, refer to Figure 2 , Figure 3 and Figure 4It can be seen that one end of each of the two sets of bidirectional screws 4 extends to the outside of the connecting block 2 and is connected to a rotating shaft 8. Gears 9 are fixedly sleeved on the outer side of each rotating shaft 8, and a synchronous toothed belt 10 meshes with the outer side of each gear 9. Limiting rings 11 are symmetrically distributed on the sides of the gears 9, and the limiting rings 11 are fixedly sleeved on the outer side of the rotating shaft 8. Two sets of limiting rings 11 are symmetrically sleeved on the outer side of each of the two sets of rotating shafts 8. Through the setting of the two sets of limiting rings 11, the synchronous toothed belt 10 can be limited without affecting its normal transmission, thus achieving... To prevent deviation during rotation, stable meshing transmission between gear 9 and synchronous toothed belt 10 is ensured. One end of one set of rotating shafts 8 away from the bidirectional screw 4 is connected to a handwheel 12. The handwheel 12 facilitates the rotation of the rotating shafts 8 by the operator. In use, the operator only needs to rotate the handwheel 12, and through the cooperation of gear 9, synchronous toothed belt 10 and limit ring 11, the two sets of rotating shafts 8 and bidirectional screw 4 can be driven to transmit simultaneously, thereby effectively improving the operator's efficiency in operating the pipeline.
[0026] Furthermore, refer to Figure 2 It can be seen that the two sets of connecting blocks 2 are connected to each other on the side close to each other by mounting block 16, and the interior of mounting block 16 is connected to the top of plastic pipe guillotine 1 by bolts. In use, the interior of mounting block 16 is provided with reserved holes that match the bolts, and the outer wall of the top of plastic pipe guillotine 1 is also provided with screw holes that match the bolts. Therefore, through the cooperation of mounting block 16 and bolts, it is easy for the staff to separate the two sets of connecting blocks 2 from plastic pipe guillotine 1 so that the staff can inspect and repair plastic pipe guillotine 1.
[0027] Furthermore, refer to Figure 2 and Figure 5 It can be seen that the outer side of the clamping plate 6 is glued with rubber block 7, and the outer surface of the rubber block 7 is evenly distributed with anti-slip particles, which are not shown in the figure. Through the cooperation of the rubber block 7 and the anti-slip particles, the friction force when fixing the pipe can be increased, thereby effectively improving the fixing effect of the pipe.
[0028] Furthermore, refer to Figure 5 It can be seen that the bottom of the moving block 5 is connected to the docking block 13, the top of the clamping plate 6 is provided with a slot that matches the docking block 13, the top of the clamping plate 6 is horizontally inserted with a connecting rod 14, and the end of the connecting rod 14 is connected to a connecting plate 15. The inside of the docking block 13 is provided with a through groove that matches the connecting rod 14. In use, the docking block 13, the connecting rod 14 and the connecting plate 15 cooperate with each other, so that the staff can easily remove the damaged clamping plate 6 from under the moving block 5.
[0029] Furthermore, refer to Figure 5It can be seen that the inner wall of the through groove is provided with internal threads, and the outer surface of the connecting rod 14 is provided with external threads. The external and internal threads are not shown in the figure. The threaded fit between the connecting rod 14 and the through groove can effectively ensure the tightness of the connection between the clamping plate 6 and the mating block 13.
[0030] Working Principle: In use, the operator first inserts the pipe to be cut into the plastic pipe cutter 1, positioned below the cutter. Then, the operator rotates the handwheel 12, causing the rotating shaft 8 to rotate simultaneously. Through the gear 9 sleeved on the outside of the rotating shaft 8 and the synchronous toothed belt 10, the two sets of rotating shafts 8 drive the two sets of bidirectional screws 4 to rotate synchronously. This causes the moving blocks 5 and the bidirectional screws 4 to engage threadedly, resulting in the left and right clamping plates 6 moving in opposite directions and confining the pipe. After positioning, the operator can rotate the screw inside the plastic pipe cutter 1 to move the cutter downwards, thus completing the cutting of the plastic pipe. If the clamping plate 6 breaks or deforms after prolonged use, the operator can rotate the connecting plate 15 to rotate the connecting rod 14 simultaneously, thereby pulling the connecting rod 14 out from the top of the docking block 13 and the clamping plate 6. At this time, the operator can remove the clamping plate 6 from the outside of the docking block 13 for replacement. The above is the complete working principle of this utility model.
[0031] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.
[0032] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.
[0033] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
Claims
1. A plastic pipe cutting device, comprising a plastic pipe guillotine (1), characterized in that, The plastic pipe guillotine (1) is provided with a connecting block (2) above it, and the connecting block (2) is provided with a connecting groove (3) inside. The inner wall of the connecting groove (3) is connected to a bidirectional screw (4) through a bearing, and two sets of moving blocks (5) are sleeved on the outer side of the bidirectional screw (4). Clamping plates (6) are provided below the two sets of moving blocks (5).
2. The plastic pipe cutting device according to claim 1, characterized in that, The connecting block (2) and the bidirectional screw (4) are provided in two sets, and the two sets of connecting blocks (2) and bidirectional screws (4) are symmetrically distributed about the central axis of the plastic pipe cutter (1).
3. The plastic pipe cutting device according to claim 1, characterized in that, One end of each of the two sets of bidirectional screws (4) extends to the outside of the connecting block (2) and is connected to a rotating shaft (8). A gear (9) is fixedly sleeved on the outside of the rotating shaft (8). A synchronous toothed belt (10) meshes on the outside of the gear (9). Limiting rings (11) are symmetrically distributed on the side of the gear (9). The limiting rings (11) are fixedly sleeved on the outside of the rotating shaft (8). A handwheel (12) is connected to one end of the rotating shaft (8) away from the bidirectional screw (4).
4. The plastic pipe cutting device according to claim 1, characterized in that, The two sets of connecting blocks (2) are connected to each other on one side by mounting block (16), and the interior of mounting block (16) is connected to the top of plastic pipe cutter (1) by bolts.
5. A plastic pipe cutting device according to claim 1, characterized in that, The clamping plate (6) is bonded with a rubber block (7) on its outer side, and the outer surface of the rubber block (7) is uniformly distributed with anti-slip particles.
6. A plastic pipe cutting device according to claim 1, characterized in that, The bottom of the moving block (5) is connected to a docking block (13). The top of the clamping plate (6) is provided with a slot that matches the docking block (13). A connecting rod (14) is inserted horizontally into the top of the clamping plate (6), and a connecting plate (15) is connected to the end of the connecting rod (14). A through groove that matches the connecting rod (14) is provided inside the docking block (13).
7. A plastic pipe cutting device according to claim 6, characterized in that, The inner wall of the through groove is provided with internal threads, and the outer surface of the connecting rod (14) is provided with external threads.