CN220741867U - Pipe inner hemming cutting equipment - Google Patents

Abstract

The utility model discloses a pipe inner hemming cutting device which comprises a device main body, a cutting assembly and an electric control assembly. The device main body is arranged in the pipeline in a sliding manner along the axis direction of the pipeline, and a driving assembly is arranged in the device main body; the cutting assembly is arranged on the equipment main body, and comprises a cutting knife connected with the driving assembly in a transmission way, and the cutting knife can move along the radial direction of the pipeline so as to be abutted against the joint of the inner wall of the pipeline and the inner curled edge and can rotate along the circumferential direction of the pipeline; the electric control assembly is electrically connected to the driving assembly. After the electric control assembly is started, the driving assembly can automatically control the cutting knife to move along the radial direction of the pipeline so as to be abutted to the joint of the pipeline wall and the inner curled edge, and then the automatically controlled cutting knife rotates along the circumferential direction of the pipeline, so that the inner curled edge is cut off by the cutting knife along the joint, an operator is not required to enter the pipeline to cut off the inner curled edge, the cutting efficiency is high, the cutting is even, and the cutting effect is greatly improved.

Description

Pipe inner hemming cutting equipment

Technical Field

The utility model belongs to the technical field of cutting devices, and particularly relates to a pipe inner hemming cutting device.

Background

The hot melt connection is a common pipeline connection method, and can be widely applied to connection of polyethylene pipelines such as fuel gas, water drainage, water supply and the like. After the hot melt welding is finished, an outer hemming and an inner hemming are often generated at the welding position, the inner hemming not only can prevent the fluid flow in the pipeline, and the flow speed is reduced, but also can impact the inner hemming when the fluid passes through the welding seam, so that the welding seam is damaged.

Aiming at the problems, the inner curled edges are usually cleaned manually in the market at present, and after welding is finished and cooling is carried out for a certain time, operators enter the pipeline to cut by a scraper; or use top cutting pliers, with the cutting edge of pincers top tool bit aimed at turn-up root and weld joint connection part after, press the pincers handle with effort, cut off the internal bead, but because after the cooling, the hardness of internal bead is higher, operating personnel cuts force, cuts unevenly, can't get into and cut when the pipeline internal diameter is less moreover, leads to the cutting comparatively difficult.

Based on the foregoing, there is a need for a pipe inner hemming cutting apparatus to solve the technical problems in the prior art.

Disclosure of Invention

The utility model aims to provide a pipe inner hemming cutting device which can automatically cut inner hemming without operators entering a pipe for cutting, and has high cutting efficiency and good cutting effect.

To achieve the purpose, the utility model adopts the following technical scheme:

a pipe inner hemming cutting apparatus comprising:

the device comprises a device main body, a driving component and a control unit, wherein the device main body can be arranged in a pipeline in a sliding manner along the axial direction of the pipeline;

the cutting assembly is arranged on the equipment main body, and comprises a cutting knife which is connected with the driving assembly in a transmission way, and the cutting knife can move along the radial direction of the pipeline so as to be abutted against the joint of the inner wall of the pipeline and the inner curled edge and can rotate along the circumferential direction of the pipeline;

and the electric control assembly is electrically connected with the driving assembly.

Optionally, the driving assembly includes a rotating motor and a rotating shaft, the rotating motor is arranged in the equipment main body, and the rotating shaft is in transmission connection with an output end of the rotating motor;

the cutting assembly further comprises a fixing seat and a first air cylinder assembly, the fixing seat is connected to the rotating shaft, the first air cylinder assembly is mounted on the fixing seat along the radial direction of the pipeline, and the cutting knife is connected to the output end of the first air cylinder assembly in a transmission mode.

Optionally, the endoscope assembly further comprises an optical lens and a display, wherein the optical lens and the cutting knife are positioned on the same straight line along the radial direction of the pipeline, and the display is used for detecting whether the optical lens captures the inner curled edge.

Optionally, the device further comprises a push rod assembly, wherein the push rod assembly comprises a push shaft rod, one end of the push shaft rod is connected with the device main body, and the push shaft rod can drive the device main body to reciprocate along the axis direction of the pipeline.

Optionally, the push rod assembly further includes a plurality of spacing support pieces, one end of each spacing support piece is connected to the pushing shaft rod, and the other end of each spacing support piece is abutted to the inner wall of the pipeline.

Optionally, the device further comprises a cart assembly, wherein the cart assembly comprises a cart body and universal wheels connected to the bottom of the cart body, and the device body is detachably arranged on the cart body.

Optionally, the cart assembly further comprises a lifting driving piece fixedly arranged on the cart body, and an output end of the lifting driving piece is in transmission connection with the universal wheel.

Optionally, the cleaning device further comprises a cleaning component arranged on the device main body, the cleaning component is abutted against the inner wall of the pipeline, and when the device main body moves out of the pipeline, the cleaning component can discharge the cut-out in the pipeline outwards.

Optionally, the device further comprises a second cylinder assembly, wherein the second cylinder assembly is arranged in the device main body along the radial direction of the pipeline, and the driving assembly is in transmission connection with the output end of the second cylinder assembly, so that the output end of the second cylinder assembly can be in butt connection with the inner wall of the pipeline.

Optionally, the device further comprises a supporting assembly, wherein the supporting assembly comprises supporting legs and supporting rollers, two ends of the supporting legs are respectively connected with the device main body and the supporting rollers, and the supporting rollers are in rolling fit connection with the inner wall of the pipeline.

The beneficial effects are that: the utility model provides a pipe inner hemming cutting device, wherein a driving component and a cutting component are arranged on a device main body, the driving component is electrically connected with an electric control component, and a cutting knife in the cutting component is connected with the driving component in a transmission way, so that after the device main body is arranged at a preset position in a pipe in a sliding way, the electric control component is started, at the moment, the driving component can automatically control the cutting knife to move along the radial direction of the pipe so as to be abutted to the joint of the wall of the pipe and the inner hemming, and then the cutting knife is automatically controlled to rotate along the circumferential direction of the pipe, so that the inner hemming is cut along the joint by the cutting knife, an operator is not required to enter the pipe to cut the inner hemming, the cutting efficiency is high, the cutting is uniform, and the cutting effect is greatly improved.

Drawings

FIG. 1 is a schematic perspective view of a pipe inner hemming cutting apparatus according to the present utility model;

fig. 2 is a partial enlarged view at a in fig. 1.

In the figure:

1. an apparatus main body;

2. a drive assembly; 21. a rotating motor; 22. a coupling; 23. a rotating shaft;

3. a cutting assembly; 31. a cutting knife; 32. a fixing seat; 33. a first cylinder assembly;

4. a cart assembly; 41. a cart body; 42. a universal wheel;

5. a push rod assembly; 51. pushing the shaft lever; 52. a limit support; 521. a lever arm; 522. a pulley;

6. a support assembly; 61. supporting legs; 62. supporting the roller;

71. an optical lens;

8. a second cylinder assembly;

9. and a cleaning assembly.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to be within the scope of the present utility model.

The pipe inner hemming cutting apparatus provided by the present utility model is described below with reference to fig. 1 to 2 and the embodiment. Optionally, the pipe inner hemming cutting device can cut and remove inner hemming generated on the inner wall of the polyethylene pipe after hot-melt welding so as to reduce the influence on the flow speed in the pipe and the damage to welding seams. Of course, the device may also be used in some cases to cut internal curls of other plastic pipes, such as polypropylene, polyvinyl chloride, etc.; only the uneven surface of the inner wall of the pipeline can be trimmed to be smoother.

Specifically, as shown in connection with fig. 1 and 2, the pipe inner hemming cutting apparatus includes an apparatus body 1, a driving assembly 2, a cutting assembly 3, and an electronic control assembly. Wherein the device body 1 is slidably arranged in the pipe along the axial direction of the pipe; the drive assembly 2 is disposed within the apparatus body 1; the device comprises a device main body 1, a cutting assembly 3 is arranged on the device main body 1, the cutting assembly 3 comprises a cutting knife 31 which is connected with a driving assembly 2 in a transmission way, the cutting knife 31 can move along the radial direction of a pipeline so as to be abutted against the joint of the wall of the pipeline and an inner curled edge, and the cutting knife 31 can rotate along the circumferential direction of the pipeline; the electrical control assembly is electrically connected to the drive assembly 2. After equipment main part 1 slides in the pipeline and sets up in predetermineeing the position, automatically controlled subassembly starts, and drive assembly 2 can automatic control cutting knife 31 remove along the radial direction of pipeline this moment to the butt is at the junction of pipeline wall and interior turn-up, then automatic control cutting knife 31 rotates along the circumference direction of pipeline again, thereby utilizes cutting knife 31 to follow foretell junction with interior turn-up excision, no longer need operating personnel to get into in the pipeline and excision interior turn-up, not only cutting efficiency is high, and the cutting is even for the cutting effect improves greatly.

Before the apparatus body 1 enters the pipe, it is often necessary to first transport the apparatus body 1 to one end of the pipe. To facilitate transport of the apparatus body 1, the pipe internal bead cutting apparatus in this embodiment further comprises a trolley assembly 4. Specifically, this shallow subassembly 4 includes shallow body 41 and connects in the universal wheel 42 of shallow body 41 bottom, and operating personnel can at first lift up equipment main part 1 to shallow body 41 on, then slowly move shallow body 41, prevent that equipment main part 1 from dropping, at this moment under the effect of universal wheel 42, shallow body 41 can high-efficiently move to the one end of pipeline, then operating personnel transfers equipment main part 1 to in the pipeline again to the purpose that has realized carrying out high-efficient and light transport to equipment main part 1.

Further, the cart assembly 4 further comprises a lifting driving member (not shown in the figure) fixedly arranged on the cart body 41, and an output end of the lifting driving member is in transmission connection with the universal wheel 42, so that the cart body 41 can drive the equipment main body 1 to lift, the height of the equipment main body 1 can be flush with one end of the pipeline, and then the equipment main body can be transferred into the pipeline, thereby improving the flexibility and adaptability of the cart assembly 4, and being more convenient for operators to move the equipment main body 1 into the pipeline. Preferably, the lifting driving member is a hydraulic driving member, which can provide a larger bearing capacity and can meet the lifting requirement when the weight of the equipment main body 1 is heavier.

After the apparatus body 1 enters the pipe, the apparatus body 1 may be pushed using the push rod assembly 5 provided in the present embodiment so that the apparatus body 1 can be moved in the axial direction of the pipe. Specifically, in this embodiment, the push rod assembly 5 includes a push shaft 51, one end of the push shaft 51 is connected to the apparatus main body 1, and the other end of the push shaft 51 can provide a pushing force through a manual work, and can also provide a pushing force through a driving device such as a motor, a hydraulic cylinder, an air cylinder, etc., so that the apparatus main body 1 can be pushed through the push shaft 51, the push assembly not only can stably push the apparatus main body 1, but also has a simple structure, and the connection with the apparatus main body 1 can be completed through a quick assembly and disassembly manner, thereby being helpful for improving the working efficiency of the whole apparatus.

It should be noted that, when the axial length of the entire pipe is long, the axial length of the required pushing shaft 51 is also long, but the long pushing shaft 51 is easy to bend or break due to the limitation of the structural strength, which is disadvantageous for the stable pushing of the apparatus main body 1. Based on this, in this embodiment, the push rod assembly 5 further includes a plurality of limiting support members 52, one end of each limiting support member 52 is connected to the push shaft rod 51, and the other end of each limiting support member is capable of being abutted against the inner wall of the pipe after the push shaft rod 51 enters the pipe, so that the deformation of the push shaft rod 51 is reduced to a certain extent, and the structural stability of the push shaft rod 51 and the movement stability of the device main body 1 are further enhanced.

Optionally, in this embodiment, the limiting support 52 has a V-shaped structure, which includes two cross-connected lever arms 521, the pushing shaft 51 passes through a through hole formed at the intersection of the two lever arms 521, and an end of each lever arm 521, far from the pushing shaft 51, is connected to the inner wall of the pipe in an abutting manner. By the clamping action of the two lever arms 521, the push shaft 51 can be further clamped stably within the pipe, further reducing the possibility of the push shaft 51 being skewed. Further, the end of each lever arm 521, which is far away from the pushing shaft 51, is further provided with a pulley 522, and the pulley 522 can reduce friction between the lever arm 521 and the inner wall of the pipe, and can reduce the resistance to movement of the apparatus main body 1 while improving the service life of the limiting support 52.

Of course, in some other juxtaposed embodiments, the limit support 52 may also comprise three lever arms 521, uniformly arranged in the circumferential direction of the duct, which can perform a more stable supporting action on the push shaft 51. Accordingly, one skilled in the art can determine the number of use of the lever arm 521 as needed, and the number of use of the lever arm 521 may be three or more, which is not limited by the present utility model.

Further, in this embodiment, the number of the pushing shafts 51 may be plural, the pushing shafts 51 are sequentially and detachably connected, the pushing shaft 51 at the head end is connected to the apparatus main body 1, and the pushing shaft 51 at the tail end is used for receiving the pushing force provided by the manual or driving device, so that the length of the whole pushing shaft 51 can be adaptively adjusted according to the actual axial length of the pipe, so that the apparatus main body 1 can be smoothly pushed to the preset position. It is to be understood that a plurality of limiting supports 52 may be provided on each push shaft 51, and the present utility model is not limited to the number of limiting supports 52 used; a limit support 52 may also be provided at the junction of two adjacent push shafts 51 to ensure structural stability of the entire push shaft 51.

Optionally, the pipe inside hemming-out apparatus further comprises a holding assembly 6 provided on the apparatus body 1 in order to reduce friction of the surface of the apparatus body 1 with the inner wall of the pipe when the apparatus body 1 is moved inside the pipe. Illustratively, in this embodiment, the supporting assembly 6 includes supporting legs 61 and supporting rollers 62, wherein two ends of the supporting legs 61 are respectively connected to the apparatus main body 1 and the supporting rollers 62, and the supporting rollers 62 are rollably attached to the inner wall of the pipe, so that the apparatus main body 1 can be disposed at intervals with the inner wall of the pipe, and friction contact with the inner wall of the pipe can be avoided during the movement of the apparatus main body 1, thereby effectively improving the service life and pushing efficiency of the apparatus main body 1. Preferably, in the present embodiment, one holding assembly 6 is provided at each of opposite sides of the apparatus body 1 to ensure the smoothness of the apparatus body 1.

Optionally, the pipe inner hemming cutting apparatus further comprises a speculum assembly by which an operator is enabled to ensure that the apparatus body 1 is moved in a preset position, which is understood to mean that the cutter 31 is moved to a position in which it is aligned with the inner hem. Specifically, in this embodiment, as shown in fig. 2, the scope assembly includes an optical lens 71, a scope tube and a display, the optical lens 71 is disposed at a position in line with the cutter 31, both ends of the scope tube are respectively connected to the optical lens 71 and the display, and a plurality of optical fiber bundles are disposed in the scope tube so that the light source transmits light to the optical lens 71 through the optical fiber bundles. When the optical lens 71 captures an inner curl on the inner wall, the captured image information can be transmitted to a display for display through an optical fiber bundle, and after the inner curl is observed, an operator can determine that the cutter 31 is already at a position aligned with the inner curl at this time and perform the next operation.

Specifically, with continued reference to fig. 2, in this embodiment, the driving assembly 2 includes a rotation motor 21, a coupling 22 and a rotation shaft 23, the rotation motor 21 is disposed in the apparatus main body 1, an output end of the rotation motor 21 is connected to the rotation shaft 23 through the coupling 22 in a transmission manner, and smooth reliability of a rotation torque transmitted by the rotation motor 21 can be ensured through the coupling 22, so that the whole driving assembly 2 is simplified by using the rotation motor 21 and the rotation shaft 23, and the energy conversion rate and the rotation precision are relatively high, thereby being beneficial to improving the cutting precision of the cutter 31 and reducing damage of the cutter 31 to an inner wall of a pipeline.

In addition, the cutting assembly 3 provided in this embodiment further includes a fixing base 32 and a first cylinder assembly 33. The fixing base 32 is connected to the rotating shaft 23, the first cylinder assembly 33 is mounted on the fixing base 32 along the radial direction of the pipe, and the optical lens 71 is also fixedly connected to the fixing base 32, so as to ensure that the optical lens 71 and the cutting blade 31 are in the same straight line, and the cutting blade 31 is connected to the output end of the first cylinder assembly 33 in a transmission manner. In this embodiment, before the rotation shaft 23 rotates, the cutter 31 may be adjusted to the center position of the inner curl by fine adjustment of the pushing shaft 51, the cutter 31 is pushed to be abutted against the inner wall of the pipe by the first cylinder assembly 33, and then when the rotation shaft 23 rotates, the cutter 31 rotates along with the rotation shaft 23 by the fixing seat 32 with the first cylinder assembly 33 until the cutter 31 rotates to the position where the inner wall of the pipe is connected with the inner curl.

Referring to the prior art, when the inner curl is cooled, the hardness is high, and if the device main body 1 is not fixed in position, the device main body 1 may shift left and right during the process of cutting the inner curl by the cutter 31, so that the cutter 31 is separated from the original movement path, and the portion of the inner wall of the pipe without the inner curl is damaged. Therefore, before the cutter 31 cuts off the inner curled edge, the present embodiment can further improve the position stability of the apparatus main body 1 in the pipe by providing the second cylinder assembly 8 on the apparatus main body 1, the second cylinder assembly 8 is disposed in the apparatus main body 1 along the radial direction of the pipe, and the driving assembly 2 is drivingly connected to the output end of the second cylinder assembly 8, so that the driving assembly 2 can push the output end of the second cylinder assembly 8 to a position abutting against the inner wall of the pipe. Through the above-mentioned setting, can make when cutting knife 31 excision internal hemming, equipment main part 1 can stably keep motionless to effectively guarantee that cutting knife 31 removes along original motion path, can excision internal hemming, can also protect the safety of pipeline.

Preferably, in the present embodiment, a second cylinder assembly 8 is provided at each of opposite ends of the apparatus body 1 in the axial direction of the pipe, so as to further enhance the stability of the apparatus body 1 in the pipe.

Optionally, in this embodiment, the pipe inner hemming cutting apparatus further includes a cleaning assembly 9 provided on the apparatus body 1, the cleaning assembly 9 being provided in abutment with an inner wall of the pipe. When the cutter 31 cuts off the inner curled edge and pulls the apparatus main body 1 out of the pipe by pushing the shaft 51, the cleaning assembly 9 can scrape the waste such as cut-out in the pipe out of the pipe, thereby ensuring the sanitation in the pipe and reducing the cleaning pressure of operators.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Pipe inner hemming excision equipment, its characterized in that includes:

the device comprises a device main body (1) which can be arranged in a pipeline in a sliding manner along the axial direction of the pipeline, wherein a driving assembly (2) is arranged in the device main body (1);

the cutting assembly (3) is mounted on the equipment main body (1), the cutting assembly (3) comprises a cutting knife (31) which is connected with the driving assembly (2) in a transmission way, and the cutting knife (31) can move along the radial direction of the pipeline so as to be abutted against the joint of the inner wall and the inner curled edge of the pipeline and can rotate along the circumferential direction of the pipeline;

and the electric control assembly is electrically connected with the driving assembly (2).

2. The pipe inner hemming cutting apparatus of claim 1 wherein,

the driving assembly (2) comprises a rotating motor (21) and a rotating shaft (23), the rotating motor (21) is arranged in the equipment main body (1), and the rotating shaft (23) is connected to the output end of the rotating motor (21) in a transmission way;

the cutting assembly (3) further comprises a fixing seat (32) and a first air cylinder assembly (33), the fixing seat (32) is connected to the rotating shaft (23), the first air cylinder assembly (33) is arranged on the fixing seat (32) along the radial direction of the pipeline, and the cutting knife (31) is connected to the output end of the first air cylinder assembly (33) in a transmission mode.

3. The pipe inner hemming cutting apparatus according to claim 2, further comprising a speculum assembly including an optical lens (71) connected by an optical fiber bundle, the optical lens (71) being on the same line as the cutter (31) in a radial direction of the pipe, and a display for detecting whether the optical lens (71) catches the inner hem.

4. The pipe inner hemming cutting apparatus according to claim 1, further comprising a push rod assembly (5), the push rod assembly (5) including a push shaft (51), one end of the push shaft (51) being connected to the apparatus main body (1) and being capable of driving the apparatus main body (1) to reciprocate in an axial direction of the pipe.

5. The pipe inner hemming-cutting apparatus according to claim 4, wherein the push rod assembly (5) further includes a plurality of limit supports (52), one end of the limit support (52) is connected to the push shaft (51), and the other end of the limit support (52) abuts against the inner wall of the pipe.

6. The pipe inner hemming cutting apparatus according to claim 1, further comprising a cart assembly (4), the cart assembly (4) comprising a cart body (41) and universal wheels (42) connected to a bottom of the cart body (41), the apparatus main body (1) being detachably mounted on the cart body (41).

7. The pipe inner hemming cutting apparatus according to claim 6, wherein the trolley assembly (4) further comprises a lifting drive member fixed to the trolley body (41), the output end of the lifting drive member being drivingly connected to the universal wheel (42).

8. The pipe inner hemming cutting apparatus according to claim 1, further comprising a cleaning assembly (9) provided on the apparatus main body (1), the cleaning assembly (9) being abutted against an inner wall of the pipe, the cleaning assembly (9) being capable of discharging the cut-out in the pipe outwards when the apparatus main body (1) is moved out of the pipe.

9. A pipe inner hemming cutting apparatus according to claim 1, further comprising a second cylinder assembly (8), the second cylinder assembly (8) being arranged in the apparatus body (1) in a radial direction of the pipe, the drive assembly (2) being drivingly connected to an output end of the second cylinder assembly (8) such that the output end of the second cylinder assembly (8) is connectable in abutment with an inner wall of the pipe.

10. The pipe inner hemming cutting apparatus according to claim 1, further comprising a holding assembly (6), the holding assembly (6) comprising a holding leg (61) and a holding roller (62), both ends of the holding leg (61) being connected to the apparatus main body (1) and the holding roller (62), respectively, the holding roller (62) being rollably attached to an inner wall of the pipe.