A surface polishing device for steel-plastic composite pipe

Abstract

The present invention discloses a surface polishing device for steel-plastic composite pipes, comprising a workbench, wherein the upper end of the workbench is fixedly connected to two side plates, a plurality of clamping assemblies are arranged between the two side plates, the clamping assemblies comprise a first rotating rod rotatably connected to the two side plates, the adjacent sides of the two first rotating rods are fixedly connected to clamping cylinders, the inner walls of the two clamping cylinders on the opposite sides are provided with second electromagnets, the two clamping cylinders are slidably connected to inserting cylinders, and the two inserting cylinders are elastically connected to the adjacent sides of the corresponding second electromagnets through second springs. The polishing device can feed three pipes at the same time, and can automatically clamp after the three pipes are fed, and utilize the rotation of the pipes and the pressure of the third spring to evenly polish the pipes, and can automatically unload the pipes after the polishing is completed, which greatly improves the polishing efficiency of the pipes in mass production.

Description

Technical Field

[0001] The invention relates to the technical field of steel-plastic composite pipe processing, in particular to a surface polishing device for a steel-plastic composite pipe. Background Art

[0002] Steel-plastic composite pipe, the product uses seamless steel pipe and welded steel pipe as the base pipe, the inner wall is coated with high adhesion, anti-corrosion, food-grade hygienic polyethylene powder coating or epoxy resin coating, and is made of pre-treatment, preheating, internal coating, leveling and post-treatment processes to form a galvanized internal plastic-coated composite steel pipe for water supply.

[0003] During the processing of steel-plastic composite pipes, the outer wall of the composite pipe needs to be polished. The existing polishing process usually involves clamping the pipe and then rotating the polishing roller for polishing. However, since the installation position of the polishing roller in the prior art is fixed, the pipe needs to be turned over intermittently during polishing, which easily leads to uneven polishing. In addition, during polishing in the prior art, the pipe is mostly fixed by manual loading, and then the clamping needs to be released after polishing and then the material is manually unloaded. This method will lead to low production efficiency during mass production. Therefore, it is necessary to design a surface polishing device for steel-plastic composite pipes to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a surface polishing device for a steel-plastic composite pipe is proposed. The polishing device can load three pipes at the same time, and can automatically clamp the three pipes after loading, and utilize the rotation of the pipes and the pressure of the third spring to evenly polish the pipes. When the polishing is completed, the material can be automatically unloaded, which greatly improves the polishing efficiency of the pipes in mass production.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A surface polishing device for a steel-plastic composite pipe comprises a workbench, wherein the upper end of the workbench is fixedly connected to two side plates, a plurality of clamping assemblies are arranged between the two side plates, the clamping assembly comprises a first rotating rod rotatably connected to the two side plates, adjacent sides of the two first rotating rods are fixedly connected to clamping cylinders, inner walls of the two clamping cylinders on opposite sides are provided with second electromagnets, insertion cylinders are slidably connected inside the two clamping cylinders, the two insertion cylinders are elastically connected to the adjacent sides of the corresponding second electromagnets through a second spring, a driving motor is installed on the side plate on the right side, the output shaft end of the driving motor is fixedly connected to the first rotating rod on the rear side, a plurality of the first rotating rods on the left side penetrate the corresponding side plates, and the plurality of the first rotating rods are transmission-connected through a transmission assembly; a plurality of polishing assemblies are arranged on adjacent sides of the two side plates, and the plurality of the polishing assemblies are used for polishing.

[0007] Preferably, the polishing assembly includes a second rotating rod rotatably connected between the two side plates, a round rod is fixedly connected to the outer wall of the second rotating rod, a plurality of compression grooves are provided on the round rod, polishing blocks are slidably connected in the plurality of compression grooves, the plurality of polishing blocks are elastically connected to the inner bottoms of the corresponding compression grooves through a plurality of third springs, a second gear is provided on the plurality of the first rotating rods located on the right side, and a third gear matching the second gear is provided on the plurality of the second rotating rods.

[0008] Preferably, it also includes a conveying assembly, which includes two fixed rods fixedly connected to the front side and the upper end of the workbench, each two matching fixed rods are commonly fixedly connected to a fixed block, two conveying rollers are commonly rotatably connected between adjacent sides of the two fixed blocks, the two conveying rollers are connected through a conveyor belt transmission, a conveying motor is installed on the fixed block located on the right side, and the conveying motor is fixedly connected to the conveying roller located on the rear side.

[0009] Preferably, the adjacent sides of the two side plates are commonly fixedly connected with a top plate, the upper end of the top plate is fixedly connected with a guide plate, three blanking ports are provided on the top plate, a plurality of telescopic slots are provided on the upper end of the top plate, a first electromagnet is provided on the rear inner wall of each telescopic slot, a stopper is slidably connected in each telescopic slot, and each stopper is elastically connected to the adjacent side of the corresponding first electromagnet through a first spring.

[0010] Preferably, it further comprises a plurality of supporting assemblies, wherein the supporting assemblies comprise moving blocks, and an arc-shaped block is disposed at the upper end of each of the moving blocks.

[0011] Preferably, a plurality of unloading components are provided at the upper end of the workbench, and the unloading components include a shrinking box arranged on the workbench, the lower end of the moving block extends into the shrinking box and is slidably connected to the inner wall of the shrinking box, the inner bottom of the shrinking box is fixedly connected with a pneumatic rod, the telescopic end of the pneumatic rod is fixedly connected to the lower end of the moving block, two mounting blocks are fixedly connected to the moving block, the adjacent sides of the two mounting blocks are commonly penetrated by a thin rod rotatably connected, the thin rod is provided with a first gear, a plurality of racks are fixedly connected to the upper end of the workbench, a connecting block is fixedly connected to the thin rod, and the upper end of the connecting block is fixedly connected to the lower end of the arc block.

[0012] Preferably, a plurality of slide grooves are provided at the upper end of the workbench, a plurality of discharge ports connected by the slide grooves are provided on the side panel located on the right side, and a plurality of baffles are fixedly connected to the upper end of the workbench.

[0013] The present invention has the following beneficial effects:

[0014] Compared with the prior art, the three drop openings on the conveying assembly and the top plate can make the three pipes fall on the corresponding arc blocks in sequence, so that the three pipes can be loaded at the same time, which is convenient for the subsequent polishing of the three pipes at the same time;

[0015] Compared with the prior art, the insertion tube and the second electromagnet are arranged so that when the pipe falls on the arc block, the two ends of the pipe are automatically clamped, so that the subsequent driving motor can drive the pipe to rotate;

[0016] Compared with the prior art, by setting the polishing block and the third spring, the multiple polishing blocks will also rotate during the rotation of the pipe, and the multiple polishing blocks will always abut against the outer wall of the pipe, so that the outer wall of the pipe can be evenly polished;

[0017] Compared with the prior art, by setting up the unloading assembly, after the pipe is released from clamping, the pneumatic rod is contracted to move the pipe downward. At the same time, during the downward movement, the arc block drives the pipe to rotate, so that the pipe falls into the chute and then slides to the outside, thereby greatly improving the efficiency of pipe production.

[0018] To sum up, the present invention can quickly load three pipes and automatically clamp the pipes after loading. By utilizing the rotation of the pipes and the rotation of multiple polishing blocks, the outer wall of the pipe can be evenly polished. After polishing, the pipes can be unloaded quickly, thereby improving the production efficiency of the steel-plastic composite pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a surface polishing device for a steel-plastic composite pipe proposed by the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0021] Figure 3 for Figure 1 Internal cross-sectional view of the middle clamping tube;

[0022] Figure 4 for Figure 1 Schematic diagram of the middle support assembly;

[0023] Figure 5 for Figure 1 Schematic diagram of the polishing assembly;

[0024] Figure 6 for Figure 1 Schematic diagram of the structure after removing the top plate;

[0025] Figure 7 for Figure 1A partial enlarged view of .

[0026] In the figure: 1 workbench, 2 fixed rod, 3 conveyor belt, 4 conveying motor, 5 discharge port, 6 driving motor, 7 side plate, 8 top plate, 9 blanking port, 10 guide plate, 11 baffle, 12 rack, 13 first electromagnet, 14 first spring, 15 block, 16 first rotating rod, 17 transmission assembly, 18 clamping cylinder, 19 second electromagnet, 20 second spring, 21 insertion cylinder, 22 moving block, 23 thin rod, 24 arc block, 25 first gear, 26 shrink box, 27 pneumatic rod, 28 second rotating rod, 29 third spring, 30 polishing block, 31 round rod, 32 second gear, 33 third gear, 34 slide groove, 35 fixed block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] Reference Figure 1-Figure 7 A surface polishing device for a steel-plastic composite pipe comprises a workbench 1, wherein the lower end of the workbench 1 is fixedly connected with a plurality of legs, the upper end of the workbench 1 is fixedly connected with two side plates 7, a plurality of clamping assemblies are arranged between the two side plates 7, and the clamping assemblies comprise a first rotating rod 16 rotatably connected to the two side plates 7, the adjacent sides of the two first rotating rods 16 are fixedly connected with clamping cylinders 18, the inner walls of the two clamping cylinders 18 on the opposite sides are provided with second electromagnets 19, and the two clamping cylinders 18 are slidably connected with insertion cylinders 21, which are made of magnetic material, and the second electromagnet 19 generates a repulsive force on the insertion cylinder 21 after being energized, and the inner walls of the insertion cylinder 21 and the clamping cylinder 18 are relatively rough, so that the first rotating rod 16 is fixedly connected with the two side plates 7, and the adjacent sides of the two first rotating rods 16 are fixedly connected with clamping cylinders 18, and the inner walls of the two clamping cylinders 18 on the opposite sides are provided with second electromagnets 19, and the two clamping cylinders 18 are slidably connected with insertion cylinders 21, which are made of magnetic material, and the second electromagnet 19 generates a repulsive force on the insertion cylinder 21 after being energized, and the inner walls of the insertion cylinder 21 and the clamping cylinder 18 are relatively rough, so that the first rotating rod 16 is fixedly connected with the clamping cylinder 18, and the inner walls of the two clamping cylinders 18 are relatively rough, so that the second electromagnet 19 is energized with the second electromagnet 19. When the rod 16 rotates, the clamping cylinder 18 will drive the insertion cylinder 21 to rotate, and the insertion cylinder 21 can drive the steel-plastic composite pipe to rotate. The two insertion cylinders 21 are elastically connected to the adjacent sides of the corresponding second electromagnet 19 through the second spring 20. A driving motor 6 is installed on the side plate 7 on the right side. The end of the output shaft of the driving motor 6 is fixedly connected to the first rotating rod 16 on the rear side. Multiple first rotating rods 16 on the left side penetrate the corresponding side plate 7. Multiple first rotating rods 16 are connected through a transmission assembly 17. The first transmission assembly 17 includes a sprocket arranged on the first rotating rod 16. The three sprockets are connected through chain transmission. In actual production, several pressure strip plates can be set to ensure the stability of the chain transmission.

[0029] Among them, multiple polishing assemblies are provided on the adjacent sides of the two side plates 7, and the multiple polishing assemblies are used for polishing processing. The polishing assemblies include a second rotating rod 28 rotatably connected between the two side plates 7, and a round rod 31 is fixedly connected to the outer wall of the second rotating rod 28. The round rod 31 is provided with multiple compression grooves, and polishing blocks 30 are slidably connected in the multiple compression grooves. The multiple polishing blocks 30 are elastically connected to the inner bottom of the corresponding compression grooves through multiple third springs 29. The multiple first rotating rods 16 located on the right side are provided with second gears 32, and the multiple second rotating rods 28 are provided with third gears 33 matching the second gear 32. The round rod 31 is located on the front and rear sides of the clamping cylinder 18.

[0030] The conveying assembly includes two fixed rods 2 fixedly connected to the front side and the upper end of the workbench 1, and each two matched fixed rods 2 are fixedly connected to a fixed block 35. Two conveying rollers are connected to rotate together between the adjacent sides of the two fixed blocks 35. The two conveying rollers are connected by a conveyor belt 3. A conveying motor 4 is installed on the fixed block 35 on the right side. The conveying motor 4 is fixedly connected to the conveying roller on the rear side. The adjacent sides of the two side plates 7 are fixedly connected to a top plate 8. The top plate 8 is tilted backward, so that after the conveying assembly conveys the plate to the top plate 8, the plate can be moved backward. Side rolling allows the plate to fall through the three blanking openings 9. The upper end of the top plate 8 is fixedly connected with a guide plate 10. The spacing between the two guide plates 10 is the same as the length of the processed steel-plastic composite pipe. Three blanking openings 9 are provided on the top plate 8. A plurality of telescopic grooves are provided at the upper end of the top plate 8. A first electromagnet 13 is provided on the inner wall of the rear side of each telescopic groove. A stopper 15 is slidably connected in each telescopic groove. Each stopper 15 is elastically connected to the adjacent side of the corresponding first electromagnet 13 through a first spring 14. The stopper 15 is made of magnetic material. When the first electromagnet 13 is energized, a repulsive force is exerted on the stopper 15.

[0031] It also includes a plurality of supporting components, the supporting components include a moving block 22, each moving block 22 is provided with an arc block 24 at the upper end, each arc block 24 is provided with a pressure sensor, a controller is provided on the workbench 1, the two pressure sensors located on the front side generate electrical signals to be transmitted to the controller, the controller controls the two first electromagnets 13 located on the front side to be energized, the two pressure sensors located in the middle generate electrical signals to be transmitted to the controller, the controller controls the two first electromagnets 13 located on the rear side to be energized, when the plurality of pressure sensors generate electrical signals to be transmitted to the controller, the controller controls the second electromagnet 19 to be energized, a plurality of unloading components are provided at the upper end of the workbench 1, the unloading components include a shrink box 26 arranged on the workbench 1, the lower end of the moving block 22 extends To the inside of the shrinking box 26 and slidingly connected with the inner wall of the shrinking box 26, the inner bottom of the shrinking box 26 is fixedly connected with a pneumatic rod 27, the telescopic end of the pneumatic rod 27 is fixedly connected with the lower end of the moving block 22, and the moving block 22 is fixedly connected with two mounting blocks, and the adjacent sides of the two mounting blocks are commonly penetrated and rotatably connected with a thin rod 23, and a first gear 25 is provided on the thin rod 23. The upper end of the workbench 1 is fixedly connected with a plurality of racks 12, and a connecting block is fixedly connected to the thin rod 23. The upper end of the connecting block is fixedly connected with the lower end of the arc block 24, and the upper end of the workbench 1 is provided with a plurality of slide grooves 34. The inner bottoms of the plurality of slide grooves 34 are inclined to the right, and the side panel 7 located on the right side is provided with a plurality of discharge ports 5 connected by the slide grooves 34. The upper end of the workbench 1 is fixedly connected with a plurality of baffles 11.

[0032] The functional principle of the present invention can be explained through the following operation mode: first, the composite pipes are placed on the conveyor belt 3 in sequence, and the conveying motor 4 is started, so that multiple pipes are conveyed from front to back. When the pipes leave the conveyor belt 3, they will be located between the two guide plates 10. Since the top plate 8 is tilted backward, the pipes roll backward. Since the first drop opening 9 is in an open state, when the pipes roll to the first drop opening 9, they will fall, so that the pipes will fall on the two arc blocks 24 located on the front side.

[0033] At this time, due to the weight of the pipe, the pressure sensors on the two arc blocks 24 on the front side will be squeezed, thereby generating an electrical signal to be transmitted to the controller. The controller controls the two first electromagnets 13 on the front side to be energized, thereby generating a repulsive force on the corresponding baffles 11, so that the two baffles 11 move forward to the first blanking port 9, so that when the subsequent pipe rolls on the top plate 8, the pipe will pass over the first blanking port 9. Since the second blanking port 9 is in an open state, the pipe will pass through the blanking port 9 and fall on the two arc blocks 24 in the middle, so that the pressure sensor on the middle arc block 24 is squeezed and generates an electrical signal to be transmitted to the controller. The controller controls the two first electromagnets 13 on the rear side to be energized, so that the baffle 11 on the rear side moves forward to the second blanking port 9, so that the third pipe will pass through the third blanking port 9 and fall on the two arc blocks 24 on the rear side.

[0034] When the pressure sensors on the multiple arc blocks 24 are squeezed, the multiple second electromagnets 19 are controlled to be energized (at this time, the conveying motor 4 stops running and stops conveying the pipe), so that the multiple second electromagnets 19 produce a repulsive force on the insertion tube 21, so that the corresponding two insertion tubes 21 move relative to each other, so that the two ends of the pipe are inserted into the insertion tube 21;

[0035] After the pipe is clamped, the driving motor 6 is started, so that the driving motor 6 drives the first rotating rod 16 at the rear side to rotate. Since the inner walls of the multiple insertion tubes 21 are relatively rough, the multiple insertion tubes 21 and the pipe are rotated under the action of the transmission assembly 17;

[0036] During the rotation of the first rotating rod 16, the second gear 32 and the third gear 33 are in meshing state, so that the round rod 31 drives the multiple polishing blocks 30 to rotate, and due to the elastic effect of the third spring 29, the polishing blocks 30 are tightly pressed against the outer wall of the pipe, so that the outer wall of the pipe is evenly polished;

[0037] When polishing is completed, the staff can control the multiple second electromagnets 19 to be de-energized through the controller, so that under the elastic action of the second spring 20, the two insertion tubes 21 move away from each other, thereby releasing the clamping of the pipe, and the pipe is located on the arc block 24;

[0038] At this time, the staff can control the pneumatic rod 27 to contract, so that the arc block 24 drives the pipe to move downward. During the downward movement, when the first gear 25 engages with the rack 12, the thin rod 23 drives the arc block 24 to rotate, so that the pipe will fall. Due to the setting of the baffle 11, the pipe will fall into the corresponding chute 34. Since the chute 34 is tilted to the right, the pipe will be discharged along the chute 34 and the discharge port 5, thereby performing automatic unloading processing.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A surface polishing device for a steel-plastic composite pipe, comprising a workbench (1), characterized in that: The upper end of the workbench (1) is fixedly connected to two side plates (7), a plurality of clamping assemblies are arranged between the two side plates (7), and the clamping assemblies include a first rotating rod (16) rotatably connected to the two side plates (7), the adjacent sides of the two first rotating rods (16) are fixedly connected to clamping cylinders (18), the inner walls of the two clamping cylinders (18) on the opposite sides are provided with second electromagnets (19), the two clamping cylinders (18) are slidably connected to insertion cylinders (21), the two insertion cylinders (21) are elastically connected to the adjacent sides of the corresponding second electromagnets (19) through second springs (20), a driving motor (6) is installed on the side plate (7) located on the right side, the output shaft end of the driving motor (6) is fixedly connected to the first rotating rod (16) located on the rear side, and the plurality of the first rotating rods (16) located on the left side penetrate the corresponding side plates (7), and the plurality of the first rotating rods (16) are transmission-connected through the transmission assembly (17); Adjacent sides of the two side plates (7) are provided with a plurality of polishing assemblies, and the plurality of polishing assemblies are used for performing a polishing process; The adjacent sides of the two side plates (7) are fixedly connected to a top plate (8), the upper end of the top plate (8) is fixedly connected to a guide plate (10), the top plate (8) is provided with three blanking openings (9), the upper end of the top plate (8) is provided with a plurality of telescopic grooves, the rear inner wall of each telescopic groove is provided with a first electromagnet (13), each telescopic groove is slidably connected to a stopper (15), and each stopper (15) is elastically connected to the adjacent side of the corresponding first electromagnet (13) via a first spring (14).

2. The surface polishing device for a steel-plastic composite pipe according to claim 1, characterized in that: The polishing assembly comprises a second rotating rod (28) rotatably connected between the two side plates (7); a round rod (31) is fixedly connected to the outer wall of the second rotating rod (28); a plurality of compression grooves are provided on the round rod (31); polishing blocks (30) are slidably connected in the plurality of compression grooves; the plurality of polishing blocks (30) are elastically connected to the inner bottoms of the corresponding compression grooves via a plurality of third springs (29); a second gear (32) is provided on the plurality of first rotating rods (16) located on the right side; and a third gear (33) matching the second gear (32) is provided on the plurality of second rotating rods (28).

3. The surface polishing device for a steel-plastic composite pipe according to claim 1, characterized in that: The invention also comprises a conveying assembly, the conveying assembly comprising two fixed rods (2) fixedly connected to the front side and the upper end of the workbench (1), each two matched fixed rods (2) being fixedly connected to a fixed block (35), two conveying rollers being connected to rotate together between adjacent sides of the two fixed blocks (35), the two conveying rollers being connected by transmission via a conveyor belt (3), a conveying motor (4) being installed on the fixed block (35) located on the right side, and the conveying motor (4) being fixedly connected to the conveying roller located on the rear side.

4. The surface polishing device for a steel-plastic composite pipe according to claim 1, characterized in that: It also comprises a plurality of support assemblies, wherein the support assemblies comprise moving blocks (22), and an arc-shaped block (24) is provided at the upper end of each moving block (22).

5. The surface polishing device for a steel-plastic composite pipe according to claim 4, characterized in that: A plurality of material unloading components are provided at the upper end of the workbench (1), and the material unloading components include a shrinking box (26) arranged on the workbench (1); the lower end of the moving block (22) extends into the shrinking box (26) and is slidably connected to the inner wall of the shrinking box (26); the inner bottom of the shrinking box (26) is fixedly connected to a pneumatic rod (27); the telescopic end of the pneumatic rod (27) is fixedly connected to the lower end of the moving block (22); two mounting blocks are fixedly connected to the moving block (22); adjacent sides of the two mounting blocks are connected to a thin rod (23) that is rotatably penetrated; a first gear (25) is provided on the thin rod (23); a plurality of racks (12) are fixedly connected to the upper end of the workbench (1); a connecting block is fixedly connected to the thin rod (23); the upper end of the connecting block is fixedly connected to the lower end of the arc block (24).

6. The surface polishing device for a steel-plastic composite pipe according to claim 1, characterized in that: The upper end of the workbench (1) is provided with a plurality of slide grooves (34), the side plate (7) located on the right side is provided with a plurality of discharge ports (5) connected via the slide grooves (34), and the upper end of the workbench (1) is fixedly connected with a plurality of baffles (11).

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