Polyethylene pipeline hot melting joint flanging cutting device

Abstract

The utility model relates to the technical field of pipeline machining, in particular to a polyethylene pipeline hot melting joint flanging and cutting device which comprises a machine body, a first clamping block, a second clamping block, a beating layer, fixing shafts, connecting plates, an edge pressing conveying mechanism, a cutting mechanism, a clamping plate, a clamping rod, a cutting knife and a pre-walking wheel. An edge pressing conveying mechanism is arranged between the two connecting plates; when the device is used, a large ratchet wheel driving structure is changed into a two-small-ratchet-wheel driving structure, when the device is used for cutting, indentations on a sample can be reduced, the sampling quality is improved, meanwhile, the two ratchet wheels are driven by the motor and the speed reducer to replace a traditional manual pulling mode, cutting of the device can be continuously and stably carried out, and the working efficiency is improved. And meanwhile, manpower and time required by flanging and cutting are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline processing, in particular to a polyethylene pipeline hot-melt joint flanging and cutting device. Background Art

[0002] The polyethylene pipe hot-melt joint is an interface method that heats the two ends of the polyethylene pipe and compresses it together to melt it and form a connection. After the hot-melt welding joint is connected, the flange at the connection needs to be cut off. Generally, special tools are required to cut off the external welding flange without damaging the pipe and the joint.

[0003] At present, the existing polyethylene pipe hot-melt joint flange cutting device usually adopts a ratchet drive. During the cutting process, it is necessary to manually turn the wrench to perform the cutting operation, which is time-consuming and labor-intensive. At the same time, the flatness of the cutting is not ideal. In addition, during use, the large ratchet indents the polyethylene flange sample too deeply, affecting the sampling effect. At the same time, during actual use on site, it is generally impossible to cut from one direction to the end. An additional cutting device is required to cut the flange, and then continue cutting from another direction, which is cumbersome.

[0004] Based on this, the utility model designs a polyethylene pipe hot-melt joint flanging and cutting device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a polyethylene pipe hot-melt joint flanging and cutting device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a polyethylene pipe hot-melt joint flanging and cutting device, comprising a machine body, a first fixing block, a second fixing block, a striking layer, a fixed shaft, a connecting plate, a pressing and conveying mechanism, a cutting mechanism, a fixing plate, a clamping rod, a cutting knife and a pre-travel wheel, a first slide groove is provided on the front plate body of the machine body, a second slide groove is provided on the rear plate body of the machine body, and fixed shafts are symmetrically connected on both sides of the rear plate body, connecting plates are movably connected to the two fixed shafts, a pressing and conveying mechanism is arranged between the two connecting plates, bearings are fixedly arranged inside the front ends of the two connecting plates, a connecting shaft is provided on one side of the two connecting plates, and a fixing plate is movably connected to the connecting shaft.

[0007] As a preferred technical solution of the utility model, the edge pressing conveying mechanism includes a rotating shaft, a ratchet, a reducer and a motor. The two ends of the rotating shaft are respectively fixedly connected to the inner rings of the bearings on the two connecting plates, and two ratchets are fixedly connected to the rotating shaft.

[0008] As a preferred technical solution of the utility model, one end of the rotating shaft is connected to the output shaft of the reducer, the reducer is fixedly mounted on the side of the right connecting plate, the input shaft of the reducer is connected to the output shaft of the motor, and the motor is connected to the reducer.

[0009] As a preferred technical solution of the utility model, a trimming groove and an oblique groove are provided inside the middle plate of the machine body, the oblique groove is connected to the trimming groove, clamping rods are provided on both sides of the middle plate of the machine body, and a cutting mechanism is provided inside the trimming groove.

[0010] As a preferred technical solution of the utility model, the cutting mechanism includes a cross frame, a blade, a connecting rod, a pressing plate, a limit rod and a spring. The two ends of the cross frame are slidably connected in the cutting groove, the lower end at the center of the cross frame is fixedly connected to the blade, the upper end of the cross frame is symmetrically connected to two connecting rods, and the pressing plate is connected to the upper ends of the two connecting rods.

[0011] As a preferred technical solution of the utility model, both ends of the cross frame are slidably connected to the limit rod, the limit rod is fixedly connected in the trimming groove, a spring is arranged on the outside of the limit rod, the upper end of the spring is connected to the cross frame, and the lower end of the spring is connected to the bottom end of the trimming groove.

[0012] As a preferred technical solution of the utility model, a clamping groove is provided at one end of the clamping plate, and the clamping groove can be engaged with the rod body of the clamping rod.

[0013] As a preferred technical solution of the utility model, a first fixing block is movably arranged in the first slide groove, a second fixing block is movably arranged in the second slide groove, a striking layer is arranged at the rear end of the machine body, a cutting knife is installed at the trimming groove at the bottom end of the machine body, and a pre-travel wheel is arranged inside the machine body in front of the cutting knife.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is in use, by changing the large ratchet drive structure into two small ratchet drive structures, the indentation on the sample can be reduced during cutting and the sampling quality can be improved. At the same time, the drive of the two ratchets replaces the traditional manual pull form through the motor and the reducer, so that the cutting of the device can be carried out continuously and stably, the flatness of the cut surface is improved, and at the same time, manpower and the time required for flanging and cutting are saved, thereby improving work efficiency;

[0016] 2. When the utility model is in use, through the cutting mechanism provided in the trimming groove, when the required flange is to be cut, the pressing plate is pressed to push the cross frame to move downward in the trimming groove under the action of the connecting rod. The downward movement of the cross frame realizes the cutting of the trimming through the blade at its lower end, without the need for additional cutting tools, which is relatively convenient and quick. The two pre-travel wheels symmetrically provided at the front end below the trimming groove can enable the device to have a pre-travel effect when struck by a small hammer, so that the flange can be cut off by striking. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall front view structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall side view structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the utility model when viewed from above;

[0021] Figure 4 It is a partial enlarged structural schematic diagram of the utility model;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the machine body of the utility model.

[0023] In the figure: 1. body; 101. first slide groove; 102. second slide groove; 103. trimming groove; 104. inclined groove; 2. first fixing block; 3. second fixing block; 4. striking layer; 5. fixed shaft; 6. connecting plate; 601. connecting shaft; 602. bearing; 7. edge pressing and conveying mechanism; 701. rotating shaft; 702. ratchet; 703. reducer; 704. motor; 8. cutting mechanism; 801. cross frame; 802. blade; 803. connecting rod; 804. pressing plate; 805. limiting rod; 806. spring; 9. fixing plate; 901. slot; 10. clamping rod; 11. cutting knife; 12. pre-travel wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the attached embodiment of the present utility model Figure 1-5, clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 The utility model provides the following technical solutions: a polyethylene pipe hot-melt joint flanging and cutting device, comprising a body 1, a first fixing block 2, a second fixing block 3, a striking layer 4, a fixed shaft 5, a connecting plate 6, a pressing conveying mechanism 7, a cutting mechanism 8, a fixing plate 9, a clamping rod 10, a cutting knife 11 and a pre-travel wheel 12, a first slide groove 101 is provided on the front plate of the body 1, a second slide groove 102 is provided on the rear plate of the body 1, and fixed shafts 5 are symmetrically connected on both sides of the rear plate, and connecting plates 6 are movably connected to the two fixed shafts 5, and a pressing conveying mechanism 7 is arranged between the two connecting plates 6, and bearings 602 are fixedly arranged inside the front ends of the two connecting plates 6, and connecting shafts 601 are provided on one side of the two connecting plates 6, and fixing plates 9 are movably connected to the connecting shafts 601.

[0026] The edge pressing conveying mechanism 7 includes a rotating shaft 701 , a ratchet 702 , a reducer 703 and a motor 704 . The two ends of the rotating shaft 701 are fixedly connected to the inner rings of the bearings 602 on the two connecting plates 6 , and the rotating shaft 701 is fixedly connected to two ratchet wheels 702 .

[0027] One end of the rotating shaft 701 is connected to the output shaft of the reducer 703 . The reducer 703 is fixedly mounted on the side of the right connecting plate 6 . The input shaft of the reducer 703 is connected to the output shaft of the motor 704 . The motor 704 is connected to the reducer 703 .

[0028] Through the above-mentioned edge pressing and conveying mechanism 7 structure, when in use, the large ratchet of the original equipment is replaced with two small ratchets, so that the indentation on the flange is shallower, and by designing it to be driven by a motor, the device can perform continuous and stable cutting operations. Compared with the traditional method of cutting by manual intermittent pulling, the cut surface is smoother and the cutting efficiency is higher.

[0029] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 A trimming groove 103 and an oblique groove 104 are provided inside the middle plate of the machine body 1. The oblique groove 104 is connected to the trimming groove 103. Clamping rods 10 are provided on both sides of the middle plate of the machine body 1. A cutting mechanism 8 is provided inside the trimming groove 103.

[0030] The cutting mechanism 8 includes a cross frame 801, a blade 802, a connecting rod 803, a pressing plate 804, a limiting rod 805 and a spring 806. The two ends of the cross frame 801 are slidably connected in the cutting groove 103. The lower end at the center of the cross frame 801 is fixedly connected to the blade 802. The upper end of the cross frame 801 is symmetrically connected to two connecting rods 803. The pressing plate 804 is connected to the upper ends of the two connecting rods 803.

[0031] Both ends of the cross frame 801 are slidably connected to the limit rod 805, and the limit rod 805 is fixedly connected in the trimming groove 103. A spring 806 is arranged on the outside of the limit rod 805. The upper end of the spring 806 is connected to the cross frame 801, and the lower end of the spring 806 is connected to the bottom end of the trimming groove 103.

[0032] A clamping groove 901 is formed at one end of the clamping plate 9 , and the clamping groove 901 can be clamped with the rod body of the clamping rod 10 .

[0033] Through the cutting mechanism 8 provided in the above-mentioned cutting groove 103, when the flange needs to be cut during flange cutting, it is only necessary to press the pressing plate 804 to move the blade 802 downward to cut the flange, and no other cutting tools are needed. After cutting, the blade 802 can be reset upward under the action of the rebound force of the spring 806, which has good practicality.

[0034] Please refer to Figure 3 and Figure 4 A first fixing block 2 is movably arranged in the first slide groove 101, a second fixing block 3 is movably arranged in the second slide groove 102, a striking layer 4 is arranged at the rear end of the body 1, a cutting knife 11 is installed at the trimming groove 103 at the bottom end of the body 1, and a pre-travel wheel 12 is arranged inside the body 1 in front of the cutting knife 11.

[0035] The pre-travel wheel 12 provided in front of the cutting knife 11 can play a pre-travel function for the device when the small hammer strikes the cutting edge during use, thereby reducing the friction with the pipe body and facilitating the striking and cutting.

[0036] The working principle and use process of the utility model are as follows: when in use, the device is placed at the flange of the pipe hot-melt joint, so that the flange is in the center of the cutting groove 103, and then the layer 4 is struck by a small hammer, and the flange is cut off by the cutting knife 11. In the process of striking and cutting, the pre-travel wheel 12 can have a pre-travel effect, which is convenient for cutting the flange by striking. After the flange is cut to a certain length, the edge pressing conveying mechanism 7 is pressed toward the flange at the incision of the inclined groove 104 by rotating the connecting plate 6, and the clamping groove 901 opened at the front end of the clamping plate 9 is buckled and connected with the clamping rod 10 for fixing. Then, by adjusting the positions of the first clamping block 2 and the second clamping block 3, the device is clamped to the tube body, the motor 704 is started, and the power is transmitted through the reducer 703 to drive the rotating shaft 701 to rotate. The rotation of the rotating shaft 701 drives the two ratchet wheels 702 to rotate, thereby realizing the drive for flange cutting and continuously and smoothly cutting the flange. When the flange needs to be cut during use, the pressing plate 804 is pressed to make the blade 802 move downward in the cutting groove 103, and the flange can be cut by the blade 802 without the need to use other tools for cutting.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A polyethylene pipe hot-melt joint flanging and cutting device, comprising a body (1), a first fixing block (2), a second fixing block (3), a striking layer (4), a fixed shaft (5), a connecting plate (6), a pressing and conveying mechanism (7), a cutting mechanism (8), a fixing plate (9), a clamping rod (10), a cutting knife (11) and a pre-travel wheel (12), characterized in that: A first slide groove (101) is provided on the front plate of the machine body (1), a second slide groove (102) is provided on the rear plate of the machine body (1), and fixed shafts (5) are symmetrically connected on both sides of the rear plate, and connecting plates (6) are movably connected to the two fixed shafts (5), and a pressing conveying mechanism (7) is provided between the two connecting plates (6), and bearings (602) are fixedly provided inside the front ends of the two connecting plates (6), and connecting shafts (601) are provided on one side of the two connecting plates (6), and a fixing plate (9) is movably connected to the connecting shafts (601).

2. A polyethylene pipe hot melt joint flanging cutting device according to claim 1, characterized in that: The edge pressing conveying mechanism (7) comprises a rotating shaft (701), a ratchet (702), a reducer (703) and a motor (704); the two ends of the rotating shaft (701) are respectively fixedly connected to the inner rings of the bearings (602) on the two connecting plates (6); and the rotating shaft (701) is fixedly connected to two ratchet wheels (702).

3. A polyethylene pipe hot melt joint flanging cutting device according to claim 2, characterized in that: One end of the rotating shaft (701) is connected to the output shaft of the reducer (703); the reducer (703) is fixedly mounted on the side of the right connecting plate (6); the input shaft of the reducer (703) is connected to the output shaft of the motor (704); and the motor (704) is connected to the reducer (703).

4. A polyethylene pipe hot melt joint flanging cutting device according to claim 1, characterized in that: A trimming groove (103) and an inclined groove (104) are provided inside the middle plate of the machine body (1); the inclined groove (104) is connected to the trimming groove (103); clamping rods (10) are provided on both sides of the middle plate of the machine body (1); and a cutting mechanism (8) is provided inside the trimming groove (103).

5. A polyethylene pipe hot melt joint flanging cutting device according to claim 4, characterized in that: The cutting mechanism (8) comprises a cross frame (801), a blade (802), a connecting rod (803), a pressing plate (804), a limiting rod (805) and a spring (806); two ends of the cross frame (801) are slidably connected in the trimming groove (103); the lower end at the center of the cross frame (801) is fixedly connected to the blade (802); the upper end of the cross frame (801) is symmetrically connected to two connecting rods (803); and the pressing plate (804) is connected to the upper ends of the two connecting rods (803).

6. A polyethylene pipe hot melt joint flanging cutting device according to claim 5, characterized in that: Both ends of the cross frame (801) are slidably sleeved with a limit rod (805), the limit rod (805) is fixedly connected in the trimming groove (103), a spring (806) is arranged outside the limit rod (805), the upper end of the spring (806) is connected to the cross frame (801), and the lower end of the spring (806) is connected to the bottom end of the trimming groove (103).

7. The polyethylene pipe hot melt joint flanging cutting device according to claim 1, characterized in that: A clamping groove (901) is provided at one end of the clamping plate (9), and the clamping groove (901) can be clamped with the rod body of the clamping rod (10).

8. The polyethylene pipe hot melt joint flanging cutting device according to claim 1, characterized in that: A first fixing block (2) is movably arranged in the first slide groove (101), a second fixing block (3) is movably arranged in the second slide groove (102), a striking layer (4) is arranged at the rear end of the machine body (1), a cutting knife (11) is installed at the trimming groove (103) at the bottom end of the machine body (1), and a pre-travel wheel (12) is arranged inside the machine body (1) in front of the cutting knife (11).

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