PVC pipe girdling device

Abstract

The utility model provides a PVC pipe girdling device which comprises an installing and clamping mechanism used for loading and fixing a pipeline, the installing and clamping mechanism is provided with a horizontal axis, one side of the installing and clamping mechanism is provided with an annular support coaxial with the installing and clamping mechanism, the annular support is coaxially and rotatably connected with an annular rotating frame, and the annular rotating frame is provided with an annular groove. The annular support is fixedly provided with a first power assembly for driving the annular rotating frame to rotate, the annular rotating frame is provided with a cutting mechanism, the inner side of the annular support is rotationally connected with a suction pipe coaxial with the annular support, the suction pipe is provided with an abutting suction mechanism, and the suction pipe is further connected with a second power assembly. The pipeline girdling device can improve the stability in the pipeline girdling process, is favorable for discharging chippings, and improves the cutting quality.

Description

Technical Field

[0001] This utility model relates to the technical field of PVC pipe cutting devices, and in particular to a PVC pipe circumferential cutting device. Background Technology

[0002] PVC is an abbreviation for polyvinyl chloride. Its main component is polyvinyl chloride, and other components are added to enhance its heat resistance, toughness, and ductility. The top layer of this surface film is paint, the middle layer is mainly polyvinyl chloride, and the bottom layer is a backing adhesive. PVC pipes are widely used.

[0003] According to processing requirements, pipes need to be cut. Existing cutting devices generally cut directly from the outside. During the cutting process, the cutting position will generate high temperature due to cutting and friction, causing local deformation. Moreover, the cutting debris is not easy to collect and tends to adhere to the cutting blade, affecting the cutting quality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a PVC pipe ring cutting device, which can provide internal support for the pipe and remove cutting debris through suction, thereby reducing the temperature at the cutting position.

[0005] According to an embodiment of the present invention, a PVC pipe ring cutting device includes an installation clamping mechanism for loading and fixing the pipe. The installation clamping mechanism has a horizontal axis. An annular support coaxial with the installation clamping mechanism is provided on one side of the installation clamping mechanism. An annular rotating frame is rotatably connected to the annular support. A first power component for driving the annular rotating frame to rotate is fixed on the annular support. A cutting mechanism is provided on the annular rotating frame. A suction tube coaxial with the annular support is rotatably connected to the inner side of the annular support. An abutment suction mechanism is provided on the suction tube. The suction tube is also connected to a second power component.

[0006] Preferably, the suction mechanism includes a mounting base fixedly sleeved on the suction tube, and a plurality of collection tubes that radially penetrate the mounting base and communicate with the interior of the suction tube. The collection tubes are slidably engaged with the mounting base, and the mounting base is provided with an adjusting element that drivesly engages with the collection tubes.

[0007] More preferably, the end of the collection tube away from the suction tube is provided with a roller that contacts the inner wall of the tube.

[0008] More preferably, the collecting tube includes a sliding part that slides and seals with the mounting base, an abutting part that is coaxially arranged with the sliding part, and a telescopic part that connects the sliding part and the abutting part, wherein an elastic element is provided between the sliding part and the abutting part.

[0009] More preferably, a guide member is provided between the abutting part and the sliding part, and the elastic member is sleeved on the telescopic part and connected to the sliding part and the abutting part.

[0010] More preferably, the adjusting member includes a plurality of piston holes disposed on the mounting base and surrounding the collecting tube, a piston rod fixedly connected to the collecting tube and extending into the piston holes, and the plurality of piston holes communicating with and connected to an adjusting air tube located in the suction tube.

[0011] In a further preferred embodiment, the side of the annular rotating frame away from the annular support is rotatably connected to the mounting and clamping mechanism, and the cutting mechanism includes a telescopic component fixed on the annular rotating frame and a cutting component fixedly connected to the telescopic component.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] A suction mechanism is installed, with its position corresponding to that of the cutting mechanism. During the circumferential cutting process, the suction mechanism provides a supporting effect from inside the pipe, preventing deformation at the cutting position. Simultaneously, the suction mechanism, corresponding to the cutting position of the cutting mechanism, draws in some of the debris generated during the cutting process, reducing the impact of debris on the cutting work. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a PVC pipe ring cutting device according to the present invention.

[0015] Figure 2 This is a right-side view of the contact suction mechanism in a PVC pipe ring cutting device according to this utility model.

[0016] In the above figures: 1. Mounting clamping mechanism; 2. Annular support; 3. Annular rotating frame; 4. First power assembly; 5. Cutting mechanism; 501. Telescopic assembly; 502. Cutting assembly; 6. Suction tube; 7. Abutment suction mechanism; 701. Mounting base; 702. Roller; 710. Collection tube; 711. Sliding part; 712. Abutment part; 713. Telescopic part; 714. Elastic element; 715. Guide element; 720. Adjusting element; 721. Piston hole; 722. Piston rod; 723. Adjusting air pipe; 8. Second power assembly. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0018] This utility model provides an embodiment of a PVC pipe ring cutting device, including an installation clamping mechanism 1 for loading and fixing the pipe. The installation clamping mechanism 1 has a horizontal axis and includes a support. The support has a through hole with a horizontal axis. Multiple radially arranged telescopic cylinders are provided on the side wall of the support. The telescopic path of the telescopic cylinders is arranged radially along the through hole. The telescopic rod of the telescopic cylinder passes through the side wall of the support and is connected to a clamping block that contacts the pipe. After the clamping block clamps the PVC pipe, the PVC pipe is horizontal and fixed in position, unable to rotate. An annular support 2, coaxial with the through hole, is provided on one side of the installation clamping mechanism 1. An annular support 3 is rotatably connected to the annular support 2. A first power assembly 4 for driving the annular rotation frame 3 to rotate is fixedly provided on the annular support 2. A transmission gear is fixedly provided on the annular rotation frame 3. The first power assembly 4 includes a drive motor fixed to the annular support 2. A gear assembly meshing with the transmission wheel teeth is connected, and a drive motor is connected to the gear assembly for transmission. A cutting mechanism 5 is provided on the annular rotating frame 3. A suction tube 6 coaxially connected to the inner side of the annular support 2 is rotatably connected to it. The suction tube 6 can extend into the interior of the PVC pipe. A contact suction mechanism 7 is provided on the suction tube 6. The contact suction mechanism 7 can contact the inner wall of the PVC pipe and generate a supporting effect to ensure the stability of the PVC pipe during the ring cutting process. At the same time, it can generate a suction effect at the cutting position. The airflow generated by the suction carries away the cutting debris and powder, which helps to improve the cutting quality and optimize the cutting environment. The suction tube 6 is also connected to a second power assembly 8. The second power assembly 8 includes a drive motor and a transmission wheel fixedly sleeved on the surface of the suction tube 6. The drive motor is connected to a drive wheel, and the drive wheel is connected to the transmission wheel through a transmission belt to drive the suction tube 6 to rotate, so that the contact suction mechanism 7 can be in the corresponding position with the cutting mechanism 5 and rotate synchronously.

[0019] Specifically, such as Figure 2 As shown, the suction mechanism 7 includes a mounting base 701 fixedly sleeved on the suction tube 6 and a plurality of collection tubes 710 that radially penetrate the mounting base 701 and communicate with the interior of the suction tube 6. The ends of the collection tubes 710 away from the suction tube 6 are U-shaped, allowing the cutting blade of the cutting mechanism 5 to extend to their inner side. The collection tubes 710 are slidably engaged with the mounting base 701. The mounting base 701 is provided with an adjusting member 720 that is in transmission engagement with the collection tubes 710. The adjusting member 720 drives the collection tubes 710 to move radially along the suction tube 6, so that the collection tubes 710 can abut against the inner wall of the PVC pipe, producing a supporting effect. In the initial state, the collection tubes 710 are positioned corresponding to the cutting mechanism 5. The first power assembly 4 and the second power assembly 8 are connected to a controller, so that the suction mechanism 7 and the cutting mechanism 5 can rotate at the same angular velocity.

[0020] In order to reduce the deformation of other parts of the PVC pipe during the cutting process, in this embodiment, there are four collection pipes 710, which are evenly distributed around the suction pipe 6.

[0021] In order to reduce the resistance between the collection tube 710 and the inner wall of the pipe, in a further embodiment, the end of the collection tube 710 away from the suction tube 6 is provided with a roller 702 that contacts the inner wall of the pipe. The roller 702 contacts the inner wall of the pipe, and when the suction tube 6 rotates, the roller 702 abuts against the inner wall of the pipe.

[0022] Specifically, the collection tube 710 includes a sliding part 711 that slides and seals with the mounting base 701, an abutting part 712 that is coaxially arranged with the sliding part 711, and a telescopic part 713 that connects the sliding part 711 and the abutting part 712. An elastic member 714 is provided between the sliding part 711 and the abutting part 712.

[0023] In this embodiment, the elastic element 714 is a rigid spring and is sleeved on the telescopic part 713, which is a bellows.

[0024] To improve the stability of the sliding part 711 during movement, in a further embodiment, a guide member 715 is provided between the abutting part 712 and the sliding part 711. In this embodiment, an annular base is fixedly provided on the side of the sliding part 711, and a guide hole is provided on the base. The guide member 715 includes a guide rod fixed on the side of the abutting part 712 and extending into the base. The elastic member 714 is sleeved on the telescopic part 713 and connected to the sliding part 711 and the abutting part 712.

[0025] To facilitate the synchronous adjustment of multiple collection tubes 710, in a further embodiment, the adjusting member 720 includes multiple piston holes 721 disposed on the mounting base 701 and surrounding the collection tubes 710, piston rods 722 fixedly connected to the collection tubes 710 and extending into the piston holes 721, the piston rods 722 being fixedly connected to the base on the side of the sliding part 711, and the multiple piston holes 721 communicating and connected to an adjusting air pipe 723 located in the suction tube 6;

[0026] In order to make the cutting mechanism 5 adaptable to the cutting of PVC pipes of different diameters, in a further embodiment, the side of the annular rotating frame 3 away from the annular support 2 is rotatably connected to the mounting and clamping mechanism 1. The cutting mechanism 5 includes a telescopic component 501 fixed on the annular rotating frame 3 and a cutting component 502 fixedly connected to the telescopic component 501.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A PVC pipe circumferential cutting device, comprising an installation clamping mechanism (1) for loading and fixing the pipe, characterized in that, The mounting clamping mechanism (1) has a horizontal axis. One side of the mounting clamping mechanism (1) is provided with an annular support (2) coaxial with it. An annular rotating frame (3) is rotatably connected to the annular support (2) coaxially. A first power component (4) for driving the annular rotating frame (3) to rotate is fixed on the annular support (2). A cutting mechanism (5) is provided on the annular rotating frame (3). A suction tube (6) coaxial with it is rotatably connected to the inner side of the annular support (2). An abutment suction mechanism (7) is provided on the suction tube (6). The suction tube (6) is also connected to a second power component (8).

2. The PVC pipe ring cutting device according to claim 1, characterized in that, The suction mechanism (7) includes a mounting base (701) fixedly sleeved on the suction tube (6) and a plurality of collection tubes (710) that radially penetrate the mounting base (701) and communicate with the interior of the suction tube (6). The collection tubes (710) are slidably engaged with the mounting base (701), and the mounting base (701) is provided with an adjusting member (720) that is in transmission engagement with the collection tubes (710).

3. A PVC pipe ring-cutting device according to claim 2, characterized in that, The end of the collection tube (710) away from the suction tube (6) is provided with a roller (702) that contacts the inner wall of the tube.

4. A PVC pipe ring cutting device according to claim 2, characterized in that, The collection tube (710) includes a sliding part (711) that slides and seals with the mounting base (701), an abutting part (712) that is coaxially arranged with the sliding part (711), and a telescopic part (713) that connects the sliding part (711) and the abutting part (712). An elastic element (714) is provided between the sliding part (711) and the abutting part (712).

5. A PVC pipe ring cutting device according to claim 4, characterized in that, A guide (715) is provided between the contact part (712) and the sliding part (711), and the elastic member (714) is sleeved on the telescopic part (713) and connected to the sliding part (711) and the contact part (712).

6. A PVC pipe ring cutting device according to claim 2, characterized in that, The adjusting member (720) includes a plurality of piston holes (721) disposed on the mounting base (701) and surrounding the collection tube (710), a piston rod (722) fixedly connected to the collection tube (710) and extending into the piston holes (721), and the plurality of piston holes (721) are connected to an adjusting air tube (723) located in the suction tube (6).

7. A PVC pipe circumferential cutting device according to any one of claims 1-6, characterized in that, The annular rotating frame (3) is rotatably connected to the mounting clamping mechanism (1) on the side away from the annular support (2). The cutting mechanism (5) includes a telescopic component (501) fixed on the annular rotating frame (3) and a cutting component (502) fixedly connected to the telescopic component (501).

Images