Pipeline melting scar removing device

Abstract

The utility model discloses a pipeline melting scar removing device, which belongs to the technical field of pipeline construction and comprises an anti-falling frame serving as a main body support, the anti-falling frame is of a two-section structure and is connected through a rotating shaft, connecting lugs are integrally arranged at openings of the two sections of the anti-falling frame, a sliding rail is arranged at an opening of one side of the anti-falling frame, and the sliding rail is provided with a sliding groove. A guide concave part is integrally formed in the sliding rail, a sliding block is slidably connected to the interior of the sliding rail, an insertion groove is integrally formed in one side of the sliding block, teeth are integrally arranged on the upper portion of the sliding block, and guide convex parts are symmetrically installed on the other side of the sliding block; the anti-falling frame is circular, the section of the anti-falling frame is C-shaped, and the connecting lugs are connected through bolts. The sliding block moves in the sliding rail, meanwhile, the guiding concave part and the guiding convex part slide in a matched mode, the moving stability of the sliding block can be improved, a stable path is achieved in the moving process of the cutting assembly and the polishing assembly, controllability is improved, new scars are prevented from appearing at the welding position, and the using safety of a pipeline is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline construction, in particular to a pipeline welding scar removal device. Background Art

[0002] Pipe welding refers to the melting connection of two pipe sections, which is generally divided into flat butt welding and plug-in welding. Flat butt welding is generally used for large sewage pipes, while plug-in welding is used for domestic water pipes.

[0003] The following process is usually adopted: use special pipe shears or saw blades to cut PPR pipes, ensure that the cut is flat and perpendicular to the pipe axis, remove burrs and burrs, and keep the edges smooth. Before hot-melt connection, ensure that the pipe connection end face is clean, dry and oil-free. You can use a detergent to remove oil and dust. Connect the hot melter to the power supply and wait for the temperature to reach the predetermined temperature. Use a heating tool to heat the connecting parts of the pipes and fittings to melt them. The heating temperature is usually around 260°C. When the pipes and fittings are heated to a molten state, quickly connect them together to form a uniform flange body. Keep the horizontal direction during the insertion process and avoid rotation to ensure the firmness of the connection. After the connection is completed, let the joint cool and solidify in a natural state, which usually takes some time.

[0004] Since the connection is subjected to pressure during hot melting, a flange is formed at the connection, which is generally called a weld scar. In the construction of large pipelines, it needs to be removed to ensure that the pipeline is evenly stressed during laying. The existing removal methods are to use a scraper to scrape it off or to use an angle grinder to remove the weld scar. This is time-consuming and labor-intensive, and the force applied by the scraper and angle grinder cannot be controlled, resulting in new scars at the weld scar. The formed hidden scar affects the strength of the pipeline. Therefore, a structure that can remove pipeline weld scars is designed to be suitable for rolling to the weld scar and improve work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a pipeline weld scar removal device in order to solve the above-mentioned problem.

[0006] The technical solution adopted by the utility model is as follows: a device for removing weld scars from a pipe, wherein an anti-slip frame serves as the main body support, the anti-slip frame is a two-section structure connected by a rotating shaft, and connecting ears are integrally provided at the openings of the two sections of the anti-slip frame, a slide rail is provided at one opening of the anti-slip frame, a guide recess is integrally provided inside the slide rail, a slider is slidably connected inside the slide rail, a slot is integrally provided on one side of the slider, teeth are integrally provided above the slider, and a guide protrusion is symmetrically installed on the other side of the slider; the anti-slip frame is circular in shape, with a "C-shaped" cross-section, and the connecting ears are connected by bolts;

[0007] A motor compartment is integrally provided above the anti-drop frame, a servo motor is installed inside the motor compartment, and a driving gear is installed on the output shaft of the servo motor;

[0008] An extension block is provided on the outside of the anti-drop frame, an insert block is integrated on one side of the extension block, a guide groove and an opening groove are respectively provided on the front and rear ends of the surface of the extension block, and a positioning groove is provided along the opening of the opening groove side;

[0009] A cutting component for cutting off the melt scar is provided inside the guide groove, and a polishing component for polishing the melt scar is provided inside the opening groove;

[0010] The cutting assembly includes: a cutting blade and an adjusting bolt A; the cutting blade is slidably arranged inside the guide groove, the back of the cutting blade is rotatably connected to the adjusting bolt A through a bearing, and the threaded surface of the adjusting bolt A is engaged with the extension block;

[0011] The grinding assembly includes a grinding roller, a connecting block, a bearing, an adjusting bolt B, a rotating shaft, and a driving motor; a bearing is slidably connected inside the positioning groove, an adjusting bolt B is rotatably connected to the outer ring of the bearing, and the adjusting bolt B extends out of the positioning groove and is threadedly engaged with the positioning groove; a rotating shaft is installed in the inner ring of the bearing, and the grinding roller is installed on the rotating shaft through the connecting block, and a driving motor is installed outside the open groove;

[0012] The inner wall of the anti-slip frame is provided with an adjustment mechanism for adjusting the diameter;

[0013] The adjustment mechanism includes a diameter-adjusting bolt, a sliding sleeve, and a scale. The inner wall of the anti-slip frame is rotatably connected to the diameter-adjusting bolt, the outer ring of the bolt head of the diameter-adjusting bolt is rotatably connected to the sliding sleeve, a scale is extended on one side of the sliding sleeve, and the scale is telescopically and slidably arranged between the inner wall of the anti-slip frame.

[0014] Among them, the motor compartment, drive gear, and servo motor are in three groups, which are evenly distributed with the center of the anti-slip frame as the center point, and the adjacent angles are 120°. The slider is centered on the center of the anti-slip frame, and the angles from both ends to the center of the circle are 160°. The guide concave and guide convex fit together and slide, and there are multiple teeth, which are evenly arranged on the back of the slider and engage with the drive gear.

[0015] Wherein, the output shaft of the driving motor is connected to one of the rotating shafts.

[0016] The bearing shaft and the connecting block have an L-shaped cross section and are connected by bolts. The insert block and the slot are fitted together and connected by bolts.

[0017] There are three adjustment mechanisms, which are evenly distributed with the center of the anti-fall-off circle as the center point.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. In the utility model, the slider is moved in the slide rail, and the guide concave and the guide convex are fitted and slid, which can improve the stability of the slider movement, so that the cutting component and the grinding component have a stable path during the movement, improve the controllability, avoid the appearance of new scars at the welding point, and ensure the safety of the pipeline.

[0020] 2. In the present invention, by rotating the adjusting bolt A, the cutting knife moves inside the guide groove, so that the cutting knife comes into contact with the melt scar. The cutting knife can remove the melt scar, and the driving motor drives the grinding roller to rotate to grind the cross section of the melt scar again to improve the flatness.

[0021] 3. In the present invention, when the grinding roller needs to be replaced, the "L"-shaped section between the bearing shaft and the connecting block can be used to replace the grinding roller through bolts, which is more convenient to use.

[0022] 4. In the present invention, the diameter-adjusting bolt is raised and lowered by the engagement of threads in the inner wall of the anti-slip frame. Since the scale has graduations, the height of the adjusting bolt can be seen, thereby achieving height control of the diameter-adjusting bolt, thereby indirectly controlling the contact between the diameter-adjusting bolt and the pipe, thereby achieving adjustment of the diameter of the entire anti-slip frame to accommodate pipes of various specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the front internal structure of the present invention;

[0025] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 4 This is a schematic diagram of the structure of the extension block and the pipeline in the utility model;

[0027] Figure 5 This is a schematic diagram of the explosion structure of the grinding roller in the utility model;

[0028] Figure 6 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0029] Markings in the figure: 1. Anti-slip frame; 101. Motor compartment; 1011. Drive gear; 1012. Servo motor; 102. Connecting ear; 103. Slide rail; 104. Rotating shaft; 105. Guide recess; 2. Slider; 201. Slot; 202. Teeth; 203. Guide protrusion; 3. Extension block; 301. Guide groove; 302. Opening groove; 3021. Positioning groove; 303. Insert block; 4. Cutting knife; 401. Adjusting bolt A; 5. Grinding roller; 501. Connecting block; 6. Diameter adjusting bolt; 601. Sleeve; 602. Scale; 7. Bearing; 701. Adjusting bolt B; 702. Rotating shaft; 8. Drive motor. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In this utility model:

[0032] Reference Figure 1-6 , a pipeline weld scar removal device, an anti-detachment frame 1 is the main support, the anti-detachment frame 1 is a two-section structure, connected by a rotating shaft 104, and the two openings of the anti-detachment frame 1 are integrated with connecting ears 102, the anti-detachment frame 1 is opened by the rotating shaft 104, and is put on the pipeline, and then the connecting ears 102 are connected with bolts, one side of the anti-detachment frame 1 is provided with a slide rail 103, the inside of the slide rail 103 is integrated with a guide recess 105, the inside of the slide rail 103 is slidably connected with a slider 2, one side of the slider 2 is integrated with a slot 201, the top of the slider 2 is integrated with teeth 202, and the other side of the slider 2 is symmetrically installed with guide protrusions 203;

[0033] Reference Figure 1-2 A motor compartment 101 is integrally provided above the anti-drop frame 1, a servo motor 1012 is installed inside the motor compartment 101, and a driving gear 1011 is installed on the output shaft of the servo motor 1012;

[0034] There is an extension block 3 on the outside of the anti-slip frame 1, and an insert block 303 is integrated on one side of the extension block 3. The front and rear ends of the surface of the extension block 3 are respectively opened with a guide groove 301 and an opening groove 302, and a positioning groove 3021 is provided along the side of the opening of the opening groove 302; the insert block 303 is fitted with the slot 201 and connected by bolts. This arrangement makes it possible to disassemble the extension block 3 as a whole.

[0035] A cutting component capable of cutting off the fusion scar is provided inside the guide groove 301, and a polishing component capable of polishing the fusion scar is provided inside the opening groove 302;

[0036] Reference Figure 1 、 4 The cutting assembly includes: a cutting knife 4 and an adjusting bolt A401; a cutting knife 4 is slidingly arranged inside the guide groove 301, and the back of the cutting knife 4 is rotatably connected to the adjusting bolt A401 through a bearing, and the threaded surface of the adjusting bolt A401 is engaged with the extension block 3; by rotating the adjusting bolt A401, the cutting knife 4 moves inside the guide groove 301, so that the cutting knife 4 is in contact with the melt scar, and the servo motor 1012 is used to drive the driving gear 1011 to rotate, driving the slider 2 to move in the slide rail 103, and the guide concave 105 and the guide convex 203 fit and slide, which can improve the stability of the movement of the slider 2, and the cutting knife 4 can remove the melt scar.

[0037] Reference Figure 1 、 4 , 5. The grinding assembly includes a grinding roller 5, a connecting block 501, a bearing 7, an adjusting bolt B701, a bearing shaft 702, and a driving motor 8; the bearing 7 is slidably connected to the inside of the positioning groove 3021, and the adjusting bolt B701 is rotatably connected to the outer ring of the bearing 7, and the adjusting bolt B701 extends out of the positioning groove 3021 and is threadedly engaged with the positioning groove 3021. The inner ring of the bearing 7 is installed with a bearing shaft 702, and the bearing shaft 702 is installed with the grinding roller 5 through the connecting block 501, and the driving motor 8 is installed outside the open groove 302; a scale is provided on the edge of the positioning groove 3021, and the adjustment height of the two bearings 7 can be checked by the scale. The adjusting bolt B701 is rotated to move the bearing 7 in the positioning groove 3021, thereby adjusting the position of the grinding roller 5. The driving motor 8 drives the grinding roller 5 to rotate to grind the cross-section of the weld scar again to improve the flatness.

[0038] The inner wall of the anti-fall-off frame 1 is provided with an adjustment mechanism that can adjust the diameter;

[0039] Reference Figure 2-3The adjustment mechanism includes a diameter-adjusting bolt 6, a sliding sleeve 601, and a scale 602. The inner wall of the anti-stripping frame 1 is rotatably connected to the diameter-adjusting bolt 6, and the outer ring of the bolt head of the diameter-adjusting bolt 6 is rotatably connected to the sliding sleeve 601. A scale 602 is extended from one side of the sliding sleeve 601. The scale 602 is telescopically and slidably arranged between the scale 602 and the inner wall of the anti-stripping frame 1. The diameter-adjusting bolt 6 is rotated so that the diameter-adjusting bolt 6 is lifted and lowered in the inner wall of the anti-stripping frame 1 through the engagement of the thread. Since the sliding sleeve 601 is rotatably connected to the bolt head of the diameter-adjusting bolt 6, the scale 602 does not move with the rotation of the diameter-adjusting bolt 6, and it only slides between the anti-stripping frame 1. Since there is a scale on the scale 602, the height of the adjusting bolt can be seen, thereby achieving the height control of the diameter-adjusting bolt 6.

[0040] Preferably, the anti-slip frame 1 is circular in configuration, has a C-shaped cross section, and is connected at the connecting ears 102 by bolts.

[0041] Reference Figure 1-6 Preferably, the motor compartment 101, the driving gear 1011, and the servo motor 1012 are in three groups, which are evenly distributed with the center of the anti-slip frame 1 as the center point, and the adjacent angles are 120°. The slider 2 takes the center of the anti-slip frame 1 as the center point, and the angles from both ends to the center of the circle are 160°. This setting allows the slider 2 to be hidden in half of the anti-slip frame 1 when the anti-slip frame 1 is opened again. There are multiple teeth 202, which are evenly arranged on the back of the slider 2 and engage with the driving gear 1011. Since the opening angle of the slider 2 is greater than the adjacent angles of the driving gear 1011, this setting allows the teeth 202 to always engage with the driving gear 1011 when the slider 2 moves.

[0042] Reference Figure 6 Preferably, the guide recess 105 and the guide protrusion 203 fit and slide together, and the guide recess 105 and the guide protrusion 203 fit and slide together, which can improve the stability of the movement of the slider 2.

[0043] Reference Figure 4-5 Preferably, the output shaft of the driving motor 8 is connected to one of the bearing shafts 702, and the driving motor 8 drives the grinding roller 5 to rotate to grind the cross-section of the weld scar again to improve the flatness.

[0044] Reference Figure 5 Preferably, the supporting shaft 702 and the connecting block 501 have an "L"-shaped cross-section, and are connected by bolts. When the grinding roller 5 needs to be replaced, the supporting shaft 702 and the connecting block 501 have an "L"-shaped cross-section, and the grinding roller 5 can be replaced by bolts, which is more convenient to use.

[0045] Reference Figure 1-2Preferably, the adjustment mechanism is divided into three groups, which are evenly distributed with the center of the anti-slip frame 1 as the center point. The adjustment mechanism is arranged in a triangular shape, which can make the contact between the diameter-adjusting bolt 6 and the pipeline more balanced and stable.

[0046] Preferably, the drive motor 8 and the servo motor 1012 are both connected to the external control panel via wires.

[0047] Working principle: First, rotate the diameter-adjusting bolt 6 so that the diameter-adjusting bolt 6 is lifted and lowered in the inner wall of the anti-stripping frame 1 through the engagement of the thread. Since the sliding sleeve 601 is rotatably connected to the bolt head of the diameter-adjusting bolt 6, the scale 602 does not move with the rotation of the diameter-adjusting bolt 6, and it only slides between the anti-stripping frame 1. Since there is a scale on the scale 602, the height of the adjusting bolt can be seen, thereby achieving the height control of the diameter-adjusting bolt 6, thereby indirectly controlling the contact between the diameter-adjusting bolt 6 and the pipe, and achieving the adjustment of the diameter of the entire anti-stripping frame 1 to adapt to pipes of various specifications. Next, the anti-stripping frame 1 is opened through the rotating shaft 104, put on the pipe, and then the connecting ear 102 is connected with the bolt. At this time, by rotating the adjusting bolt A401, the cutting knife 4 is moved in the guide The groove 301 moves inside so that the cutting blade 4 contacts the melt scar. At this time, the servo motor 1012 is used to drive the driving gear 1011 to rotate, and the driving slider 2 is driven to move in the slide rail 103. The guide concave 105 and the guide convex 203 fit and slide, which can improve the stability of the movement of the slider 2. The cutting blade 4 can remove the melt scar. Then, by rotating the adjusting bolt B701, the bearing 7 moves in the positioning groove 3021, and then the position of the grinding roller 5 is adjusted. The driving motor 8 drives the grinding roller 5 to rotate, and the cross-section of the melt scar is polished again to improve the flatness. Finally, when the grinding roller 5 needs to be replaced, the "L"-shaped section between the bearing shaft 702 and the connecting block 501 can be used to replace the grinding roller 5 through the bolts.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pipeline weld scar removal device, characterized by: The anti-slip frame (1) is a main body support, the anti-slip frame (1) is a two-section structure, connected by a rotating shaft (104), and the two openings of the anti-slip frame (1) are integrally provided with connecting ears (102), one side opening of the anti-slip frame (1) is provided with a slide rail (103), the interior of the slide rail (103) is integrally provided with a guide recess (105), the interior of the slide rail (103) is slidably connected with a slider (2), one side of the slider (2) is integrally provided with a slot (201), the upper part of the slider (2) is integrally provided with teeth (202), and the other side of the slider (2) is symmetrically provided with a guide protrusion (203); A motor compartment (101) is integrally provided above the anti-drop frame (1), a servo motor (1012) is installed inside the motor compartment (101), and a driving gear (1011) is installed on the output shaft of the servo motor (1012); The anti-drop frame (1) has an extension block (3) on the outside, an insert block (303) is integrally provided on one side of the extension block (3), a guide groove (301) and an opening groove (302) are respectively provided on the front and rear ends of the surface of the extension block (3), and a positioning groove (3021) is provided along the side of the opening of the opening groove (302); A cutting component capable of cutting off the melt scar is provided inside the guide groove (301), and a polishing component capable of polishing the melt scar is provided inside the opening groove (302); The cutting assembly comprises: a cutting blade (4) and an adjusting bolt A (401); the cutting blade (4) is slidably arranged inside the guide groove (301); the back of the cutting blade (4) is rotatably connected to the adjusting bolt A (401) via a bearing; the threaded surface of the adjusting bolt A (401) is engaged with the extension block (3); The grinding assembly comprises a grinding roller (5), a connecting block (501), a bearing (7), an adjusting bolt B (701), a bearing shaft (702), and a driving motor (8); the bearing (7) is slidably connected inside the positioning groove (3021), the adjusting bolt B (701) is rotatably connected at the outer ring of the bearing (7), and the adjusting bolt B (701) extends out of the positioning groove (3021) and is threadedly engaged with the positioning groove (3021); the bearing shaft (702) is installed in the inner ring of the bearing (7), the bearing shaft (702) is installed with the grinding roller (5) through the connecting block (501), and the driving motor (8) is installed outside the opening groove (302); The inner wall of the anti-slip frame (1) is provided with an adjustment mechanism capable of adjusting the diameter; The adjustment mechanism comprises a diameter-adjusting bolt (6), a sliding sleeve (601), and a scale (602); the inner wall of the anti-slip frame (1) is rotatably connected to the diameter-adjusting bolt (6); the outer ring of the bolt head of the diameter-adjusting bolt (6) is rotatably connected to the sliding sleeve (601); a scale (602) extends from one side of the sliding sleeve (601); and the scale (602) is telescopically slidably arranged between the inner wall of the anti-slip frame (1).

2. A pipeline weld scar removal device according to claim 1, characterized in that: The anti-slip frame (1) is circular in configuration and has a C-shaped cross section, and is connected at the connecting ears (102) by bolts.

3. The pipeline weld scar removal device according to claim 1, characterized in that: The motor compartment (101), the driving gear (1011), and the servo motor (1012) are arranged in three groups, and are evenly distributed with the center of the anti-slip frame (1) as the center point, with adjacent angles of 120°. The slider (2) has the center of the anti-slip frame (1) as the center point, and the angles from both ends to the center of the circle are 160°.

4. The pipeline weld scar removal device according to claim 1, characterized in that: The guide concave (105) and the guide convex (203) fit and slide with each other.

5. The pipeline weld scar removal device according to claim 1, characterized in that: The teeth (202) are multiple in number and are evenly arranged on the back of the slider (2) and engage with the driving gear (1011).

6. The pipeline weld scar removal device according to claim 1, characterized in that: The output shaft of the drive motor (8) is connected to one of the rotation shafts (702).

7. The pipeline weld scar removal device according to claim 1, characterized in that: The bearing shaft (702) and the connecting block (501) have an L-shaped cross section and are connected by bolts.

8. The pipeline weld scar removal device according to claim 1, characterized in that: The adjustment mechanism comprises three groups, which are evenly distributed with the center of the anti-fall-off frame (1) as the center point.

9. The pipeline weld scar removal device according to claim 1, characterized in that: The insert block (303) and the slot (201) are fitted together and connected via bolts.

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