Polishing treatment device for metal pipe fitting

Abstract

The invention belongs to the technical field of pipe fitting polishing, and relates to a polishing treatment device for metal pipe fittings, the polishing treatment device comprises a bottom frame, an outer barrel, a discharging hopper, an annular side plate, a partition block and an outer polishing barrel, the top of the bottom frame is connected with the outer barrel, the top of the outer barrel is connected with the discharging hopper, and openings are formed in the middles of the top and the bottom of the outer barrel; the discharging hopper is aligned with an opening in the top of the outer cylinder, annular side plates are rotationally connected to the two sides of the outer cylinder correspondingly, an outer grinding cylinder is rotationally connected between the inner sides of the two annular side plates, and a plurality of separation blocks are evenly connected between the two annular side plates at intervals. When a pipe fitting is polished, the outer wall of the pipe fitting can be ground and polished through an outer grinding barrel, meanwhile, an inner grinding roller can stretch into the inner wall of the pipe fitting, and then the inner wall of the pipe fitting is ground and polished through rotation of the inner grinding roller; and therefore, the effect of polishing the inner wall and the outer wall of the pipe fitting at the same time can be achieved, and the polishing efficiency is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe polishing and relates to a polishing device for metal pipes. Background Art

[0002] When processing metal pipes, polishing is usually required. Polishing is a finishing technique designed to reduce the surface roughness of a workpiece, achieved through mechanical, chemical, or electrochemical forces. Mechanical polishing is the most common and widely used method. It uses physical contact, with the help of friction between a high-speed rotating polishing wheel or belt and the processed material, to gradually remove tiny surface irregularities, resulting in a smoother and flatter surface.

[0003] At present, when polishing metal pipe fittings, the pipe fittings are usually first fixed on a fixture and then polished by mechanical polishing. However, during the polishing process, both the inner and outer surfaces of some pipe fittings need to be polished. For pipe fittings that need to be polished on both the inner and outer sides, the polishing process needs to be carried out in steps, which increases the polishing time of the pipe fittings and affects the overall processing efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a polishing device for metal pipes.

[0005] The technical solution is: a polishing device for metal pipe fittings, including a base frame, an outer cylinder, a lower hopper, an annular side plate, a separator, an outer grinding cylinder, a power mechanism, a driving mechanism and an internal grinding mechanism, the top of the base frame is connected to the outer cylinder, the top of the outer cylinder is connected to the lower hopper, the top and the middle of the bottom of the outer cylinder are both provided with openings, the lower hopper is aligned with the opening on the top of the outer cylinder, both sides of the outer cylinder are rotatably connected to annular side plates, the inner sides of the two annular side plates are rotatably connected to the outer grinding cylinder, a plurality of separators are evenly spaced and connected between the two annular side plates, and the distance between each two separators can accommodate a pipe fitting, the base frame is provided with a power mechanism for driving the annular side plates to rotate and a driving mechanism for driving the outer grinding cylinder to rotate, and the annular side plates are provided with an internal grinding mechanism for grinding the inner wall of the pipe fitting.

[0006] Optionally, the power mechanism includes a dual-axis motor, a ring gear 1 and a driving gear. The dual-axis motor is installed on the base frame, and the two output shafts of the dual-axis motor are connected to the driving gear. The two annular side plates are connected to the ring gear 1, and the ring gear 1 is engaged with the driving gear.

[0007] Optionally, the driving mechanism includes a driving motor, a connecting gear and a second ring gear. The driving motor is installed on the base frame, the output shaft of the driving motor is connected to the connecting gear, the outer grinding cylinder is connected to the second ring gear, and the second ring gear is engaged with the connecting gear.

[0008] Optionally, the internal grinding mechanism includes a connecting frame, a cylinder, a connecting rod, a transmission gear, an inner grinding roller and a driving ring gear. The two annular side plates are connected to the connecting frame, the connecting frame is located in the outer grinding cylinder, and a plurality of cylinders are installed between the two connecting frames at even intervals along the circumferential direction. The telescopic rod of the cylinder is connected to the connecting rod, and the connecting rod is rotatably connected to the transmission gear, and the transmission gear is connected to the inner grinding roller. A circular through hole is opened on one of the annular side plates, and the outer grinding cylinder is connected to the driving ring gear, and the transmission gear can engage with the driving ring gear.

[0009] Optionally, an edge grinding mechanism is also included, which includes an arc-shaped grinding block, an elastic member and a convex ring. A plurality of arc-shaped grinding blocks are slidably connected to the two annular side plates at uniform intervals along the circumferential direction, and the arc-shaped grinding blocks on both sides are aligned with each other. The arc-shaped grinding blocks and the separating blocks are staggered. Two convex rings are connected to the ends of the arc-shaped grinding blocks on both sides that are away from each other, and an elastic member is connected between the arc-shaped grinding block and the annular side plate.

[0010] Optionally, a wedge-shaped extrusion block is also included, and wedge-shaped extrusion blocks are connected to both sides of the top and bottom of the outer cylinder. The wedge-shaped extrusion block at the top of the outer cylinder is located at the upper opening, and the wedge-shaped extrusion block at the bottom of the outer cylinder is located at the lower opening. The wedge-shaped extrusion block is located at the moving track of the convex ring.

[0011] Optionally, a rotating wheel is further included, and two rotating wheels are rotatably connected to both sides of the dividing block.

[0012] Optionally, a material guide frame and a material guide screen are also included. The material guide frame is connected to the middle of the top of the base frame. The material guide frame is located below the opening below the outer cylinder. One side of the material guide frame is open. The material guide frame is connected to a tilted material guide screen.

[0013] 1. When polishing a pipe fitting, the present invention can polish the outer wall of the pipe fitting through the outer polishing cylinder, and at the same time, it can extend the inner polishing roller into the inner wall of the pipe fitting, and then polish the inner wall of the pipe fitting by rotating the inner polishing roller, thereby achieving the effect of polishing both the inner and outer walls of the pipe fitting at the same time, and the polishing efficiency is higher.

[0014] 2. After the pipe is placed, the present invention can make the arc-shaped grinding block contact the edge corners of the pipe. Then, when the pipe rotates, the arc-shaped grinding block can grind the edge corners of the pipe, thereby achieving the effect of grinding the edge corners of the pipe at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure from another perspective of the present invention.

[0017] Figure 3 It is a structural schematic diagram of the power mechanism of the present invention.

[0018] Figure 4 It is a cross-sectional view of the outer cylinder and the lower hopper of the present invention.

[0019] Figure 5 This is a schematic diagram of the first structure of the internal grinding mechanism of the present invention.

[0020] Figure 6 This is a second structural schematic diagram of the internal grinding mechanism of the present invention.

[0021] Figure 7 This is a schematic diagram of the first structure of the edge grinding mechanism and the wedge-shaped extrusion block of the present invention.

[0022] Figure 8 This is a schematic diagram of the second structure of the edge grinding mechanism and the wedge-shaped extrusion block of the present invention.

[0023] Figure 9 For the present invention Figure 8 Enlarged view of part A in .

[0024] Figure 10 It is a structural schematic diagram of the separator block and the rotating wheel of the present invention.

[0025] Figure 11 It is a structural schematic diagram of the material guide frame, base frame and material guide screen of the present invention.

[0026] The markings of the components in the accompanying drawings are as follows: 1. Base frame, 2. Outer cylinder, 3. Lower hopper, 4. Annular side plate, 41. Separator, 5. Outer grinding cylinder, 61. Dual-axis motor, 62. Gear ring 1, 63. Drive gear, 71. Drive motor, 72. Connecting gear, 73. Gear ring 2, 81. Connecting frame, 82. Cylinder, 83. Connecting rod, 84. Transmission gear, 85. Inner grinding roller, 86. Drive gear ring, 91. Arc-shaped grinding block, 92. Elastic part 1, 93. Convex ring, 10. Wedge-shaped extrusion block, 11. Rotor, 12. Material guide frame, 13. Material guide screen, 100. Pipe fitting. DETAILED DESCRIPTION

[0027] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and will fully convey the scope of the invention to those skilled in the art.

[0028] A polishing device for metal pipes, such as Figures 1-6 As shown, it includes a base frame 1, an outer cylinder 2, a lower hopper 3, an annular side plate 4, a separator 41, an outer grinding cylinder 5, a power mechanism, a driving mechanism and an internal grinding mechanism. The top of the base frame 1 is connected to the outer cylinder 2, and the top of the outer cylinder 2 is connected to the lower hopper 3. The outer cylinder 2 is provided with openings in the middle of the top and bottom. The lower hopper 3 is aligned with the top opening of the outer cylinder 2. The top opening of the outer cylinder 2 is for the pipe 100 to fall into the outer cylinder 2, and the bottom opening of the outer cylinder 2 is for the polished pipe 100 to fall. An annular side plate 4 is rotatably connected to the front and rear sides of the outer cylinder 2, an outer grinding cylinder 5 is rotatably connected between the inner sides of the two annular side plates 4, a plurality of partition blocks 41 are evenly spaced and connected between the two annular side plates 4, and the distance between each two partition blocks 41 can accommodate a pipe fitting 100, and the base frame 1 is provided with a power mechanism for driving the annular side plate 4 to rotate and a driving mechanism for driving the outer grinding cylinder 5 to rotate, and the annular side plate 4 is provided with an internal grinding mechanism for grinding the inner wall of the pipe fitting 100.

[0029] like Figure 2 and Figure 3 As shown, the power mechanism includes a dual-axis motor 61, a ring gear 62 and a driving gear 63. The dual-axis motor 61 is installed on the right side of the base frame 1. The two output shafts of the dual-axis motor 61 are connected to the driving gear 63. The two annular side plates 4 are connected to the ring gear 62. The ring gear 62 is engaged with the driving gear 63, so that the dual-axis motor 61 can drive the annular side plate 4 to rotate through the driving gear 63 and the ring gear 62 when in operation.

[0030] like Figure 2 As shown, the driving mechanism includes a driving motor 71, a connecting gear 72 and a second ring gear 73. The driving motor 71 is installed in the middle of the rear side of the base frame 1. The output shaft of the driving motor 71 is connected to the connecting gear 72. The rear side of the outer grinding cylinder 5 is connected to the second ring gear 73. The second ring gear 73 is engaged with the connecting gear 72, so that the driving motor 71 can drive the outer grinding cylinder 5 to rotate through the connecting gear 72 and the second ring gear 73 when it is in operation.

[0031] like Figure 5 and Figure 6As shown, the internal grinding mechanism includes a connecting frame 81, a cylinder 82, a connecting rod 83, a transmission gear 84, an inner grinding roller 85 and a driving ring gear 86. The two annular side plates 4 are connected to the connecting frame 81, and the connecting frame 81 is located in the outer grinding cylinder 5. A plurality of cylinders 82 are installed between the two connecting frames 81 at even intervals along the circumferential direction. The telescopic rod of the cylinder 82 is connected to the connecting rod 83, and the connecting rod 83 is rotatably connected to the transmission gear 84. The rear side of the transmission gear 84 is connected to the inner grinding roller 85. A circular through hole is opened on the front annular side plate 4, and the circular through hole is located between the two dividing blocks 41. The inner grinding roller 85 can move backward through the circular through hole and extend into the pipe fitting 100. The front side of the outer grinding cylinder 5 is connected to the driving ring gear 86. After the inner grinding roller 85 moves backward to completely pass through the circular through hole, the transmission gear 84 engages with the driving ring gear 86.

[0032] When it is necessary to polish the metal pipe 100, this device can be used. When in use, the pipe 100 is first dumped into the lower hopper 3. The pipe 100 in the lower hopper 3 will fall into the outer cylinder 2 through the upper opening. Different pipes 100 can be separated by the dividing block 41. At this time, the driving motor 71 can be controlled to drive the connecting gear 72 to rotate. When the connecting gear 72 rotates, it can drive the ring gear 2 73 and the outer grinding cylinder 5 to rotate. When the outer grinding cylinder 5 rotates, it can drive the pipe 100 to rotate and grind the outer ring of the pipe 100. At the same time, the dual-axis motor 61 is controlled to operate through the driving gear 63 and the ring gear 1 62 to drive the annular side plate 4 to rotate, thereby conveying the pipe 100. When the pipe 100 moves to no longer align with the upper opening, the telescopic rod of the cylinder 82 close to the pipe 100 can be controlled to retract, thereby driving the connecting rod 83 and the transmission gear The wheel 84 and the inner grinding roller 85 move backward, and the inner grinding roller 85 moves backward and extends into the interior of the pipe fitting 100. The transmission gear 84 will mesh with the driving ring gear 86 after moving, and then the outer grinding cylinder 5 can rotate to drive the driving ring gear 86 to rotate. When the driving ring gear 86 rotates, it can drive the inner grinding roller 85 to rotate through the transmission gear 84. When the inner grinding roller 85 rotates, it can grind the inner wall of the pipe fitting 100. In this way, the inner and outer walls of the pipe fitting 100 can be polished at the same time, and the polishing efficiency is higher. After polishing is completed, the pipe fitting 100 is also aligned with the lower opening. At this time, the control cylinder 82 is extended to drive the connecting rod 83, the transmission gear 84 and the inner grinding roller 85 to move forward, so that the inner grinding roller 85 is separated from the pipe fitting 100, and the pipe fitting 100 will fall through the lower opening. This is repeated, and the effect of polishing the pipe fitting 100 can be achieved.

[0033] like Figure 7-Figure 9As shown, it also includes an edge grinding mechanism, which includes an arc-shaped grinding block 91, an elastic member 92 and a convex ring 93. A plurality of arc-shaped grinding blocks 91 are slidably connected to the two annular side plates 4 at uniform intervals along the circumferential direction. The arc-shaped grinding blocks 91 on the front and rear sides are aligned with each other. The arc-shaped grinding blocks 91 and the dividing blocks 41 are staggered. Two convex rings 93 are connected to the ends of the arc-shaped grinding blocks 91 on both sides that are away from each other. An elastic member 92 is connected between the arc-shaped grinding block 91 and the annular side plate 4. The elastic member 92 is a connecting spring. The arc-shaped grinding block 91 can contact the outer edge of the pipe fitting 100. When the pipe fitting 100 rotates, the arc-shaped grinding block 91 can be used to grind the edge of the pipe fitting 100.

[0034] like Figure 7 and Figure 8 As shown, a wedge-shaped extrusion block 10 is also included. The front and rear sides of the top and bottom of the outer cylinder 2 are connected with a wedge-shaped extrusion block 10. The wedge-shaped extrusion block 10 at the top of the outer cylinder 2 is located at the upper opening, and the wedge-shaped extrusion block 10 at the bottom of the outer cylinder 2 is located at the lower opening. The wedge-shaped extrusion block 10 is located at the moving trajectory of the convex ring 93, so that the convex ring 93 will contact the wedge-shaped extrusion block 10 when moving, and be squeezed outward by the wedge-shaped extrusion block 10.

[0035] When the annular side plate 4 rotates, it drives the arc-shaped grinding block 91 and the convex ring 93 to rotate together. When the convex ring 93 rotates to contact the upper wedge-shaped extrusion block 10, the convex ring 93 continues to rotate and is squeezed outward by the wedge-shaped extrusion block 10. When the convex ring 93 moves, it drives the arc-shaped grinding block 91 to move together. The elastic member 92 is stretched. At this time, the arc-shaped grinding block 91 is just aligned with the upper opening. Then the pipe 100 falls between the two partition blocks 41. Then the convex ring 93 continues to rotate and is separated from the wedge-shaped extrusion block 10. At this time, under the action of the elastic member 92 The convex ring 93 and the arc-shaped grinding block 91 are reset, and the arc-shaped grinding block 91 contacts the edge of the pipe 100 after being reset. Then, when the pipe 100 rotates, the edge of the pipe 100 can be polished by the arc-shaped grinding block 91. When the pipe 100 rotates to align with the lower opening, the convex ring 93 is also squeezed outward by the wedge-shaped squeezing block 10 below, so that the arc-shaped grinding block 91 is separated from the pipe 100. At this time, the pipe 100 can fall through the lower opening. In this way, the edge of the pipe 100 can be polished at the same time.

[0036] like Figure 10As shown, a rotating wheel 11 is also included. Two rotating wheels 11 are rotatably connected on both sides of the dividing block 41. After the pipe 100 is placed in the area between the two dividing blocks 41, the pipe 100 will contact the rotating wheel 11. Subsequently, when the pipe 100 rotates, the rotating wheel 11 can reduce the friction between the pipe 100 and the dividing block 41, so that the pipe 100 rotates more smoothly.

[0037] like Figure 11 As shown, it also includes a material guide frame 12 and a material guide screen 13. The material guide frame 12 is connected to the middle of the top of the base frame 1, and the material guide frame 12 is located below the opening below the outer cylinder 2. The left side of the material guide frame 12 is open, and the material guide screen 13 is connected to the material guide frame 12 with an inclined setting. The material guide screen 13 is set to be lower on the left and higher on the right, so that when the polished pipe 100 falls through the lower opening, it will fall on the material guide screen 13 and slide out along the inclined surface of the material guide screen 13, and the debris in the polishing process will pass through the material guide screen 13 and fall on the material guide frame 12, and the debris in the polishing process will be collected by the material guide frame 12.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. 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 polishing device for metal pipes, characterized in that: The invention comprises a base frame (1), an outer cylinder (2), a lower hopper (3), an annular side plate (4), a partition block (41), an outer grinding cylinder (5), a power mechanism, a driving mechanism and an internal grinding mechanism, wherein the top of the base frame (1) is connected to the outer cylinder (2), the top of the outer cylinder (2) is connected to the lower hopper (3), the top and the middle of the bottom of the outer cylinder (2) are both opened, the lower hopper (3) is aligned with the top opening of the outer cylinder (2), and the two sides of the outer cylinder (2) are rotatably connected to the annular side plates (4). An outer grinding cylinder (5) is rotatably connected between the inner sides of the two annular side plates (4), a plurality of partition blocks (41) are evenly spaced and connected between the two annular side plates (4), and the spacing between each two partition blocks (41) can accommodate a pipe (100). The base frame (1) is provided with a power mechanism for driving the annular side plates (4) to rotate and a driving mechanism for driving the outer grinding cylinder (5) to rotate. The annular side plates (4) are provided with an internal grinding mechanism for grinding the inner wall of the pipe (100).

2. A polishing device for metal pipes according to claim 1, characterized in that: The power mechanism includes a dual-axis motor (61), a ring gear (62) and a driving gear (63). The dual-axis motor (61) is installed on the base frame (1). The two output shafts of the dual-axis motor (61) are connected to the driving gear (63). The two annular side plates (4) are connected to the ring gear (62). The ring gear (62) is meshed with the driving gear (63).

3. The polishing device for metal pipes according to claim 1, characterized in that: The driving mechanism comprises a driving motor (71), a connecting gear (72) and a second ring gear (73). The driving motor (71) is mounted on the base frame (1). The output shaft of the driving motor (71) is connected to the connecting gear (72). The outer grinding cylinder (5) is connected to the second ring gear (73). The second ring gear (73) is meshed with the connecting gear (72).

4. The polishing device for metal pipes according to claim 1, characterized in that: The internal grinding mechanism includes a connecting frame (81), a cylinder (82), a connecting rod (83), a transmission gear (84), an inner grinding roller (85) and a driving ring gear (86). The two annular side plates (4) are both connected to the connecting frame (81), and the connecting frame (81) is located in the outer grinding cylinder (5). A plurality of cylinders (82) are evenly spaced and installed between the two connecting frames (81) along the circumferential direction. The telescopic rods of the cylinders (82) are connected to the connecting rod (83), and the connecting rod (83) is rotatably connected to the transmission gear (84). The transmission gear (84) is connected to the inner grinding roller (85). A circular through hole is opened on one of the annular side plates (4). The outer grinding cylinder (5) is connected to the driving ring gear (86), and the transmission gear (84) can mesh with the driving ring gear (86).

5. The polishing device for metal pipes according to claim 1, characterized in that: The invention also includes an edge grinding mechanism, which includes an arc-shaped grinding block (91), an elastic member (92) and a convex ring (93). A plurality of arc-shaped grinding blocks (91) are slidably connected to the two annular side plates (4) at uniform intervals along the circumferential direction. The arc-shaped grinding blocks (91) on both sides are aligned with each other. The arc-shaped grinding blocks (91) and the separation blocks (41) are staggered. The ends of the arc-shaped grinding blocks (91) on both sides that are away from each other are connected to two convex rings (93). An elastic member (92) is connected between the arc-shaped grinding block (91) and the annular side plate (4).

6. The polishing device for metal pipes according to claim 5, characterized in that: It also includes a wedge-shaped extrusion block (10), and the wedge-shaped extrusion blocks (10) are connected to both sides of the top and bottom of the outer cylinder (2). The wedge-shaped extrusion block (10) at the top of the outer cylinder (2) is located at the upper opening, and the wedge-shaped extrusion block (10) at the bottom of the outer cylinder (2) is located at the lower opening. The wedge-shaped extrusion block (10) is located at the moving track of the convex ring (93).

7. The polishing device for metal pipes according to claim 6, characterized in that: It also includes a rotating wheel (11), and both sides of the separating block (41) are rotatably connected to two rotating wheels (11).

8. The polishing device for metal pipes according to claim 1, characterized in that: It also includes a material guide frame (12) and a material guide screen (13). The material guide frame (12) is connected to the middle of the top of the base frame (1). The material guide frame (12) is located below the opening below the outer cylinder (2). One side of the material guide frame (12) is open. The material guide screen (13) is connected to the material guide frame (12) and is tilted.

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