CN116000833B - Steel pipe inner surface treatment system - Google Patents
Steel pipe inner surface treatment systemInfo
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- CN116000833B CN116000833B CN202310140279.2A CN202310140279A CN116000833B CN 116000833 B CN116000833 B CN 116000833B CN 202310140279 A CN202310140279 A CN 202310140279A CN 116000833 B CN116000833 B CN 116000833B
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- steel pipe
- sand blasting
- pipe
- sandblasting
- sand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a steel pipe inner surface treatment system which comprises two production lines and two circulating conveying mechanisms, wherein the production lines comprise a sand blasting storage mechanism, a steel pipe conveying mechanism, a sand blasting assembly and a rotary supporting mechanism, the sand blasting storage mechanism comprises a sand material conveying pipe, the sand blasting assembly comprises a sand blasting pipe and a sand blasting nozzle, and the sand blasting pipe can be detachably and hermetically connected with the output end of the sand material conveying pipe through a clamping and butting mechanism. According to the invention, the sand blasting assemblies which can be separated from the sand conveying pipe are arranged, after the sand blasting pipe passes through the steel pipe to finish sand blasting treatment, the sand blasting pipe is separated from the sand conveying pipe through the clamping butt joint structure, the steel pipe conveying mechanism removes the steel pipe and the sand blasting assembly in the steel pipe together, the steel pipe inserted with the sand blasting assembly at the feeding standby station is conveyed to the sand blasting station, and the sand blasting pipe is communicated with the sand conveying pipe through the clamping butt joint structure, so that the time of one-way ineffective movement of the sand blasting assembly is saved, the machining intermittent time is shortened, and the machining efficiency is improved.
Description
Technical Field
The invention relates to the technical field of steel pipe inner surface treatment, in particular to a steel pipe inner surface treatment system.
Background
The plastic-lined steel pipe is formed by taking a galvanized seamless steel pipe and a welded steel pipe as base pipes, carrying out sand blasting treatment on the inner wall, then lining a food-grade polyethylene pipe with the same diameter as the galvanized pipe, and finally carrying out pressurizing and heating for a certain time. In the prior art, when the inner wall of a steel pipe is used for sandblasting, one end of a sandblasting pipe is connected with a high-pressure sand tank, the other end of the sandblasting pipe is connected with a sandblasting head, then the sandblasting pipe stretches into the steel pipe, and sandblasting is carried out in the process of stretching into the steel pipe or pulling back from the steel pipe. In the prior art, for example, the inner surface of a steel pipe is sandblasted, and an automatic sand-blasting rust-removing system for the inner wall of a pipeline is disclosed in patent application number 201210513814.6.
Because the sand blasting operation can be completed only by one pass, the existing sand blasting pipe can normally run only by two passes. Therefore, if the existing system is improved, the sand blasting operation can be realized only by moving the sand blasting pipe in one way, part of time is saved, and the steel pipe treatment efficiency is improved.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
Disclosure of Invention
In view of the above, it is necessary to provide a steel pipe inner surface treatment system.
In order to achieve the aim, the invention provides a steel pipe inner surface treatment system which comprises a production line, wherein the production line comprises two sand blasting storage mechanisms, a steel pipe conveying mechanism and sand blasting assemblies, the sand blasting storage mechanisms comprise movable sand conveying pipes used for conveying high-pressure sand materials to the sand blasting assemblies, the steel pipe conveying mechanism is used for conveying steel pipes to sequentially pass through a feeding standby station, a sand blasting station and a discharging standby station, the sand blasting assemblies comprise sand blasting pipes and sand blasting nozzles, the output ends of the sand blasting pipes are connected with the sand blasting nozzles, the input ends of the sand blasting pipes can be detachably and hermetically connected with the output ends of the sand conveying pipes through clamping and abutting mechanisms at the sand blasting stations, the conveying directions of the steel pipe conveying mechanisms of the two production lines are opposite, and the sand blasting assemblies on the steel pipe conveying mechanism and positioned at the discharging standby station are conveyed to the feeding standby station of another steel pipe conveyor through a circulating conveying mechanism.
Preferably, the sand blasting storage mechanism further comprises a high-pressure sand tank, a rail and a rail trolley, wherein the rail trolley is installed on the rail in a rolling way, the high-pressure sand tank is installed on the rail trolley, and the high-pressure sand tank is communicated with the input end of the sand conveying pipe.
Preferably, the production line further comprises two collecting mechanisms, each collecting mechanism comprises a first fixing support, a dust box and a first power cylinder, the dust box is located on two sides of a steel pipe at the sand blasting station and surrounds two ends of the steel pipe, the sand conveying pipe can extend into the dust box, the dust box is communicated with dust removing equipment through a dust raising pipeline, the dust box comprises a lower-layer fixing portion and an upper-layer movable portion, waste discharge ports are formed in the bottom of the lower-layer fixing portion, semicircular openings for the steel pipe to move are formed in the lower-layer fixing portion and the upper-layer movable portion towards one end of the steel pipe conveying mechanism, the lower-layer fixing portion is fixedly connected with the first fixing support, the first power cylinders are fixedly installed at the top of the first fixing support and located above the dust box, and the output end of each first power cylinder is connected with the upper-layer movable portion.
Preferably, the steel pipe conveying mechanism comprises a double-chain conveyor, a second fixed support and a second power cylinder, the second power cylinder is arranged on the second fixed support, the output end of the second power cylinder is connected with the double-chain conveyor and used for driving the double-chain conveyor to linearly lift, a plurality of accessories are fixed on a chain of the double-chain conveyor, the accessories are provided with inclined planes used for being in contact with the steel pipes, and the steel pipes can be clamped between the inclined planes of two adjacent accessories.
The production line comprises a double-chain conveyor, a sand blasting station, a production line and a rotary supporting mechanism, wherein the production line further comprises the rotary supporting mechanism which is positioned below the inner side of the double-chain conveyor and is used for supporting and driving a steel pipe positioned at the sand blasting station to rotate, the rotary supporting mechanism comprises a third fixed support, a second driving motor, a first rotating shaft and riding wheels, the third fixed support is provided with a second driving motor and a plurality of first rotating shafts, the first rotating shaft is provided with a driven belt pulley and at least two riding wheels, the output end of the second driving motor is provided with a driving belt pulley, the third fixed support is further provided with a plurality of guide belt pulleys in a rotating mode, and the driving belt pulley is in transmission connection with the guide belt pulley and the driven belt pulley through a transmission belt.
The sand blasting assembly comprises four groups, wherein the number of the sand blasting assemblies in each group is 1-8, the sand blasting assembly further comprises at least two rotary supporting pieces, each rotary supporting piece comprises a fourth fixed support and at least two universal balls, the fourth fixed support is fixedly arranged on a sand blasting pipe, and the universal balls are fixedly arranged on the fourth fixed support and circumferentially distributed on the periphery of the sand blasting pipe.
Preferably, the sand blasting pipe is provided with a front end flange, the sand conveying pipe is provided with a rear end flange, the front end flange is provided with a clamping groove with a trapezoid cross section, and the rear end flange is provided with a protruding part matched with the clamping groove.
Preferably, the clamping butt-joint mechanism comprises a mounting frame, a protective shell, a first driving motor, a first gear, a second gear, an outer gear ring, a worm wheel, a worm, a second rotating shaft and an L-shaped clamping arm, wherein the mounting frame is fixedly arranged on a sand conveying pipe, the outer gear ring is rotatably arranged on the mounting frame through a bearing and is coaxially arranged with the sand conveying pipe, the protective shell is sleeved on the periphery of the outer gear ring and is fixedly connected with the mounting frame, the first driving motor is fixedly connected with the protective shell, the first gear is arranged at the output end of the first driving motor, a plurality of worms are rotatably arranged in the protective shell, the worms are circumferentially distributed on the periphery of the sand conveying pipe, the second rotating shaft in one-to-one correspondence with the worms is rotatably arranged on the worm, the worm wheel and the L-shaped clamping arm which are in meshed connection with the worm are arranged on the second rotating shaft, the L-shaped clamping arm is used for laminating and compacting the front end flange plate and the tail end flange plate, a movable opening for enabling the sand conveying pipe and the clamping butt-joint mechanism to move is further arranged on the end face of the dust collection box, which is close to one side of the high-pressure sand tank and is opposite to the semicircular opening, and the movable opening is provided with a ring-shaped dust blocking brush.
Preferably, the circulating conveying mechanism comprises a belt conveyor, a plurality of positioning channels are arranged on the belt conveyor, and the width of the input ends of the positioning channels is larger than that of the output ends of the positioning channels.
The circulating conveying mechanism comprises a steel pipe conveying mechanism, a circulating conveying mechanism, a steel pipe feeding mechanism, a circulating conveying mechanism, a blocking plate and a third power cylinder, wherein the circulating conveying mechanism further comprises a pushing mechanism and the blocking plate, the pushing mechanism and the blocking plate are arranged on one side, opposite to the belt conveyor, of the steel pipe conveying mechanism, the pushing mechanism comprises a third power cylinder, a pushing plate and a pushing rod, the output end of the third power cylinder is connected with the pushing plate, a plurality of pushing rods are fixed on the pushing plate, the pushing rod is used for pushing sand blasting assemblies in steel pipes at a blanking standby station to the circulating conveying mechanism, and the blocking plate is used for blocking sand blasting assemblies in steel pipes at a feeding standby station.
The technical scheme has the following beneficial effects that the sand blasting components which can be separated from the sand conveying pipe are arranged, after the sand blasting pipe passes through the steel pipe to finish sand blasting treatment, the sand blasting pipe is separated from the sand conveying pipe through the clamping butt joint structure, the steel pipe conveying mechanism removes the steel pipe and the sand blasting component in the steel pipe together, the steel pipe inserted into the sand blasting component at the feeding standby station is conveyed to the sand blasting station, and the sand blasting pipe is communicated with the sand conveying pipe through the clamping butt joint structure, so that the time of one-way ineffective movement of the sand blasting component is saved, the machining intermittent time is shortened, and the machining efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of the first embodiment of the present invention;
FIG. 3 is a second top view of the present invention;
FIG. 4 is a top view III of the present invention;
FIG. 5 is a top view of the present invention;
FIG. 6 is a side view of a steel pipe conveying mechanism (double-chain conveyor at bottom dead center);
Fig. 7 is a side view of a second steel pipe conveyor (double-chain conveyor at top dead center);
FIG. 8 is a schematic structural view of a blasting assembly;
FIG. 9 is a cross-sectional view of the blast assembly within a steel pipe;
FIG. 10 is a schematic view of a clamp docking mechanism;
FIG. 11 is a side view of the clamp docking mechanism;
FIG. 12 is a side view of the collection mechanism (upper movable portion at bottom dead center);
FIG. 13 is a second side view of the collection mechanism (upper movable portion at top dead center);
FIG. 14 is a state diagram of the rotary support mechanism and the puck assembly when in operation;
Fig. 15 is a schematic structural view of a steel pipe conveying mechanism and a rotary supporting mechanism;
In the figure, 1, a sand blasting storage mechanism; 11, a sand conveying pipe; 12, a high-pressure sand tank; 13, track, 14, track trolley, 15, tail end flange, 151, boss, 2, steel pipe conveying mechanism, 21, double chain conveyor, 22, second fixed bracket, 23, second power cylinder, 24, accessory, 3, sand blasting component, 31, sand blasting pipe, 32, sand blasting nozzle, 33, rotary support, 331, fourth fixed bracket, 332, universal ball, 34, front end flange, 341, clamping groove, 4, clamping docking mechanism, 401, mounting rack, 402, protective shell, 403, first driving motor, 404, first gear, 405, second gear, 406, outer gear ring, 407, worm gear, 408, worm, 409, second rotating shaft, 410, L-shaped clamping arm, 5, circulation conveying mechanism, 51, belt conveyor, 52, positioning channel, 53, approach switch, 54, pushing mechanism, 541, third power cylinder, 542, pushing plate, 543, push rod, 55, interception plate, 6, collecting mechanism, 61, first fixed bracket, 62, dust box, 621, lower layer, 622, 406, outer gear, 407, gear, belt pulley, 75, belt pulley, driving pulley, 75, driving position, gear, 75, L-shaped clamping arm, 5, circulating conveying mechanism, 51, belt conveyor, 52, positioning channel, 53, proximity switch, 54, pushing mechanism, 541, third power cylinder, 542, push plate, push rod, 55, interception plate, 6, collecting mechanism, 61, first fixed bracket, 62, dust box, 621, lower layer, upper layer, fixed pulley, lifting layer, lifting,.
Description of the embodiments
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1 to 15, an embodiment of the present application provides a steel pipe inner surface treatment system, which includes a production line, the production line includes a sand blasting storage mechanism 1, a steel pipe conveying mechanism 2 and a sand blasting assembly 3, the sand blasting storage mechanism 1 includes a movable sand conveying pipe 11 for conveying high-pressure sand to the sand blasting assembly 3, the steel pipe conveying mechanism 2 is used for conveying a steel pipe 91 sequentially passing through a feeding standby station 92, a sand blasting station 93 and a blanking standby station 94, the feeding standby station 92 is close to a feeding end of the steel pipe conveying mechanism 2, the blanking standby station 94 is close to a blanking end of the steel pipe conveying mechanism 2, and the sand blasting station 93 is located in the middle of the steel pipe conveying mechanism 2; in the embodiment, the sand blasting assemblies 3 are arranged into four groups, the number of each group of sand blasting assemblies 3 is 4, each sand blasting assembly 3 comprises a sand blasting pipe 31 and sand blasting nozzles 32, each sand blasting pipe 11 is a hard metal pipe, the output end of each sand blasting pipe 31 is connected with each sand blasting nozzle 32, the input end of each sand blasting pipe 31 can be detachably and hermetically connected with the output end of each sand blasting pipe 11 through a clamping and abutting mechanism 4 at a sand blasting station 93, each sand blasting pipe 31 is communicated with each sand blasting pipe 11 through the clamping and abutting mechanism 4, sand blasting nozzle 32 is used for conveying sand to the sand blasting nozzles 32, the sand blasting nozzles 32 can spray sand to the periphery and spray sand to the inner wall of a steel pipe 91, the sand blasting nozzles 32 can be linearly moved along the axial direction of the rotating steel pipe 91 by driving the steel pipe 91, the sand blasting nozzles 32 can uniformly spray sand to the inner surface of the steel pipe 91, the production line is arranged into two steel pipe conveying mechanisms 2 with opposite conveying directions, and the sand blasting assemblies 3 positioned at a blanking standby station 94 on the steel pipe conveying mechanism 2 are conveyed to a standby station 92 on another steel pipe 91 through a circulating conveying mechanism 5. The sand blasting assembly 3 and the sand conveying pipe 11 are designed separately, after the sand blasting pipe 31 passes through the steel pipe 91 and sand blasting treatment is completed, the sand blasting pipe 31 and the sand conveying pipe 11 are separated through the clamping butt joint mechanism 4, the steel pipe 91 carries the sand blasting assembly 3 positioned in the steel pipe 91 to be driven to move by the steel pipe conveying mechanism 2, the sand blasting assembly 93 moves to the blanking standby station 94, the steel pipe 91 at the feeding standby station 92 is inserted into the sand blasting assembly 3 and can move to the sand blasting station 93, and sand blasting can be directly performed after the sand blasting pipe 31 and the sand conveying pipe 11 are communicated through the butt joint structure, so that the time of one-way ineffective movement of the sand blasting assembly 3 is saved, the processing intermittent time is shortened, and the processing efficiency is improved.
In order to convey high-pressure sand to the sand conveying pipe 11, the sand blasting storage mechanism 1 further comprises a high-pressure sand tank 12, a rail 13 and a rail trolley 14, wherein the rail trolley 14 is installed on the rail 13 in a rolling mode, the high-pressure sand tank 12 is installed on the rail trolley 14, and the high-pressure sand tank 12 is communicated with the input end of the sand conveying pipe 11. The track trolley 14 is driven by a stepping motor or a servo motor and can walk along the track 13 so as to drive the sand conveying pipe 11 to move, and the sand conveying pipe 11 is fixedly connected with a support frame on the track trolley 14, so that the sand conveying pipe 11 keeps a horizontal posture and is convenient to be inserted into the steel pipe 91 directly.
In order to collect the waste sand and scraps escaping from the two ends of the steel pipe 91 after sand blasting, the production line further comprises two collecting mechanisms 6, each collecting mechanism 6 comprises a first fixing support 61, a dust collecting box 62 and a first power cylinder 63, each dust collecting box 62 is located on two sides of the steel pipe 91 at the sand blasting station 93 and surrounds two ends of the steel pipe 91, each sand conveying pipe 11 can extend into the corresponding dust collecting box 62, each dust collecting box 62 is communicated with dust removing equipment through a dust raising pipeline 64, each dust collecting box 62 comprises a lower fixing portion 621 and an upper movable portion 622, the lower fixing portions 621 and the upper movable portions 622 can be spliced into a box structure, waste materials in the corresponding dust collecting boxes 62 are automatically discharged from the corresponding waste materials discharging openings due to gravity, each lower fixing portion 621 and each upper movable portion 622 are provided with semicircular openings 623 for the corresponding steel pipe 91 to move towards one end of the corresponding steel pipe conveying mechanism 2, each lower fixing portion 621 is fixedly connected with the corresponding first fixing support 61, each first power cylinder 63 is fixedly mounted on the top of the corresponding first fixing support 61 and located above the corresponding dust collecting box 62, and each first power cylinder 63 is connected with the corresponding upper movable portion 622. The first power cylinder 63 is a hydraulic cylinder, a guide rod slidably mounted on the first fixed support 61 can be further arranged beside the first power cylinder 63, the guide rod plays a role in guiding lifting of the upper movable portion 622, after the first power cylinder 63 drives the upper movable portion 622 to lift to the top dead center, the steel pipe conveying mechanism 2 can convey the steel pipe 91 to the sand blasting station 93, interference is avoided, when the steel pipe 91 descends into the semicircular opening 623 of the lower fixed portion 621, the first power cylinder 63 drives the upper movable portion 622 to descend to the bottom dead center, the upper movable portion 622 descends to be in contact with the lower fixed portion 621, at the moment, the two semicircular openings 623 enclose an opening surrounding the steel pipe 91, waste removal inside the dust box 62 is reduced, and rotation of the steel pipe 91 is not affected.
In order to stably convey the steel pipe 91 and drive the steel pipe 91 to descend into the semicircular opening 623 clamped into the dust box 62, the steel pipe conveying mechanism 2 is arranged and comprises a double-chain conveyor 21, a second fixed support 22 and a second power cylinder 23, the second power cylinder 23 is arranged on the second fixed support 22, the output end of the second power cylinder 23 is connected with the double-chain conveyor 21 and is used for driving the double-chain conveyor 21 to linearly ascend and descend, a plurality of accessories 24 are fixed on a chain of the double-chain conveyor 21, the accessories 24 are provided with inclined planes for being in contact with and matched with the steel pipe 91, and the steel pipe 91 can be clamped between the inclined planes of two adjacent accessories 24, so that the steel pipe 91 is stably conveyed. The second power cylinders 23 are hydraulic cylinders, the second power cylinders 23 are four and are distributed in a rectangular shape, the four second power cylinders 23 can synchronously work to stably drive the double-chain conveyor 21 to lift, guide rods which are slidably mounted on the second fixed support 22 are arranged beside the second power cylinders 23, and the guide rods play a guide role in lifting of the double-chain conveyor 21, so that the double-chain conveyor 21 can stably and linearly lift.
The production line is characterized in that the production line further comprises a rotary supporting mechanism 7 positioned below the inner side of the double-chain conveyor 21 and used for supporting and driving the steel pipe 91 positioned at the sand blasting station 93 to rotate, the rotary supporting mechanism 7 comprises a third fixed support 71, a second driving motor 72, a first rotating shaft 73 and riding wheels 74, the third fixed support 71 is fixedly connected with the second fixed support 22, the second driving motor 72 and the five first rotating shafts 73 are arranged on the third fixed support 71, a driven pulley 75 and two riding wheels 74 are arranged on the first rotating shaft 73, the five first rotating shafts 73 can be matched with four steel pipes 91, one steel pipe 91 can be lifted to stably rotate through the four riding wheels 74, a driving pulley 76 is arranged at the output end of the second driving motor 72, a plurality of guide pulleys 77 are further rotatably arranged on the third fixed support 71, and the driving pulley 76 is in transmission connection with the guide pulleys 77 and the driven pulley 75 through transmission belts 78. The guide pulley 77 guides the drive belt 78 to avoid the drive belt 78 coming into contact with the steel pipe 91. The steel pipes 91 are fed onto the double-chain conveyor 21 and the feeding standby station 92 through the feeding equipment, and at least one steel pipe 91 mounting position is separated among the feeding standby station 92, the sand blasting station 93 and the discharging standby station 94 each time, so that the riding wheels 74 are prevented from being contacted with the steel pipes 91 at the feeding standby station 92 and the discharging standby station 94.
In order to make the sandblasting tube 31 move linearly smoothly, the sandblasting assembly 3 further comprises at least two rotary supports 33, the rotary supports 33 comprise a fourth fixed support 331 and at least two universal balls 332, the fourth fixed support 331 is fixedly mounted on the sandblasting tube 31, and the universal balls 332 are fixedly mounted on the fourth fixed support 331 and are circumferentially distributed on the periphery of the sandblasting tube 31. In this embodiment, two rotation support members 33 are provided, three universal balls 332 are provided, the horizontal posture of the sandblaster tube 31 can be maintained by the rotation support members 33 when the sandblaster tube 31 is in the circulation conveying mechanism 5 and the steel tube 91, and the universal balls 332 can be in rolling contact with the steel tube 91 when the steel tube 91 rotates, so that the sandblaster tube 31 is not driven to rotate, and the sandblaster tube 31 can smoothly and linearly move.
In order to enable the sand blasting pipe 31 and the sand conveying pipe 11 to be fast, accurately and butt-jointed together, the input end of the sand blasting pipe 31 is provided with a front end flange 34, the output end of the sand conveying pipe 11 is provided with a tail end flange 15, the front end flange 34 is provided with a clamping groove 341 with a trapezoid cross section, the tail end flange 15 is provided with a protruding part 151 matched with the clamping groove 341, the notch size of the clamping groove 341 is larger than the groove bottom, the size of the protruding part 151 towards one end of the clamping groove 341 is smaller than the size of the other end of the clamping groove 341, the design of the clamping groove 341 and the protruding part 151 can play a guiding role, so that when the positions of the sand blasting pipe 31 and the sand conveying pipe 11 deviate and the axes are different, the front end flange 34 and the tail end flange 15 can be smoothly butt-jointed, and sealing rings can be further arranged on the front end flange 34 and the tail end flange 15, and sealing effect is improved.
In order to connect the front end flange 34 and the tail end flange 15 quickly and stably, the clamping butt-joint mechanism 4 comprises a mounting frame 401, a protecting shell 402, a first driving motor 403, a first gear 404, a second gear 405, an outer gear ring 406, a worm wheel 407, a worm 408, a second rotating shaft 409 and an L-shaped clamping arm 410, wherein the mounting frame 401 is fixedly arranged on the sand conveying pipe 11, the outer gear ring 406 is rotatably arranged on the mounting frame 401 through a bearing and coaxially arranged with the sand conveying pipe 11, the protecting shell 402 is sleeved on the periphery of the outer gear ring 406 and fixedly connected with the mounting frame 401, the first driving motor 403 is fixedly connected with the protecting shell 402, the output end of the first driving motor 403 is provided with the first gear 404, a plurality of worms 408 are rotatably arranged in the protecting shell 402 through bearings, the number of the worms 408 is four in the embodiment, the worms 408 are circumferentially distributed on the periphery of the sand conveying pipe 11, the second gears 405 are arranged on the inner side walls of the worms 408, the second rotating shaft 409 are rotatably arranged on the inner side walls of the protecting shell 402 through bearings and are in one-to-one correspondence with the worm 408, the L-shaped clamping arms which are meshed with the worm 408 and the tail end 408 and the L-shaped clamping arm 408 are connected with the L-shaped clamping arm 410, and the front end flange 15 is used for pressing the flange 410 to fit tightly against the flange 15; the protecting shell 402 is cylindrical, so that each part in the protecting shell can be protected, the first driving motor 403 is a stepping motor, the first driving motor 403 drives the outer gear ring 406 at the driving position through the first gear 404 to rotate, the outer gear ring 406 drives each second gear 405 and the worm 408 to rotate, the worm 408 drives the worm wheel 407, the second rotating shaft 409 and the L-shaped clamping arm 410 to rotate, and the L-shaped clamping arm 410 contacts with the front end flange 34 when rotating oppositely, so that the front end flange 34 is pressed on the tail end flange 15.
In order to facilitate the clamping and docking mechanism 4 to enter and exit the dust box 62, the end surface of the dust box 62, which is close to one side of the high-pressure sand tank 12 and is back to the semicircular opening 623, is also provided with a movable opening 624 for the sand conveying pipe 11 and the clamping and docking mechanism 4 to move, and an annular dust-blocking brush 625 is arranged at the movable opening 624. The annular dust brush 625 reduces dust from moving out of the dust bin 62.
In order to facilitate the sand blasting assembly 3 to be conveyed, the circulating conveying mechanism 5 comprises a belt conveyor 51, a plurality of positioning channels 52 are arranged on the belt conveyor 51, the number of the positioning channels 52 is four, the number of the positioning channels 52 is the same as that of the sand blasting assemblies 3 in each group, the positioning channels 52 are formed by separating a plurality of partition plates, in order to facilitate the sand blasting assembly 3 to enter the positioning channels 52, and simultaneously facilitate the sand blasting assembly 3 to be accurately inserted into a steel pipe 91 at a feeding position, the width of the input end of the positioning channels 52 is larger than the width of the output end of the positioning channels 52, and the width of the output end of the positioning channels 52 is equal to the inner diameter of the steel pipe 91 or slightly larger than the inner diameter of the steel pipe 91. A proximity switch 53 can be arranged at the blanking end of the positioning channel 52, so that the position of the sand blasting assembly 3 can be conveniently detected, the position of the sand blasting assembly 3 can be conveniently controlled, and the sand blasting assembly 3 is prevented from being directly moved out of the positioning channel 52.
In order to facilitate pushing the sand blasting assembly 3 in the steel pipe 91 at the blanking standby station 94 onto the circulating conveying mechanism 5, the circulating conveying mechanism 5 is provided with a pushing mechanism 54, the pushing mechanism 54 is positioned on one side of the steel pipe conveying mechanism 2, which is opposite to the circulating conveying mechanism 5, the pushing mechanism 54 is close to the feeding standby station 92, the pushing mechanism 54 comprises a third power cylinder 541, a pushing plate 542 and a pushing rod 543, the output end of the third power cylinder 541 is connected with the pushing plate 542, a plurality of pushing rods 543 are fixed on the pushing plate 542, and the pushing rod 543 is used for pushing the sand blasting assembly 3 in the steel pipe 91 at the blanking standby station 94 onto the circulating conveying mechanism 5;
For the position in steel pipe 91 in order to be convenient for restrict circulation conveying mechanism 5 push into loading standby position 92 department with sandblast subassembly 3, avoid sandblast subassembly 3 to slide in steel pipe 91 after breaking away from circulation conveying mechanism 5 and lead to its length overlength that extends steel pipe 91, set up circulation conveying mechanism 5 and still include interception board 55, interception board 55 is located steel pipe conveying mechanism 2 and is directed against circulation conveying mechanism 5's one side, interception board 55 and first fixed bolster 61 fixed connection, interception board 55 is used for intercepting the sandblast subassembly 3 in the steel pipe 91 of loading standby position 92 department, play limiting displacement to sandblast subassembly 3.
For the waste materials such as waste sand of collecting the exhaust port exhaust, still can set up rectangular collecting vat 81 subaerial, install band conveyer 82 in the collecting vat 81, the vertical projection of exhaust port is located band conveyer 82, and exhaust port exhaust waste sand can fall into band conveyer 82 by gravity, and band conveyer 82 carries waste sand to its unloading end, can be convenient for collect waste sand.
In order to avoid shaking and axial movement of the steel pipe 91 in the sand blasting process, the steel pipe 91 is guaranteed to stably rotate, four pressing wheel assemblies 65 can be installed at the top of the upper movable part 622, four steel pipes 91 positioned at the sand blasting station 93 are respectively pressed down through the four pressing wheel assemblies 65, the riding wheels 74 are matched, the steel pipe 91 is limited to bounce, the steel pipe 91 is guaranteed not to axially move, and the steel pipe 91 is guaranteed to stably rotate.
The working steps of the steel pipe inner surface treatment system of the embodiment are as follows:
S1, as shown in figures 1 and 2, the steel pipe 91 at the sand blasting station 93 is internally provided with the sand blasting assembly 3, and the rail trolley 14 moves to a small displacement in a direction approaching to the steel pipe 91 so as to enable the front end flange 34 to approach to the tail end flange 15;
S2, a second driving motor 72 drives a first rotating shaft 73 and a riding wheel 74 to rotate, and the riding wheel 74 drives a steel pipe 91 of a sand blasting station 93 to rotate; as shown in fig. 3, the rail trolley 14 drives the high-pressure sand tank 12, the sand conveying pipe 11 and the sand blasting assembly 3 to move away from the steel pipe 91, and pumps the sand blasting assembly 3 away from the steel pipe 91, the valve of the sand conveying pipe 11 is opened, the sand conveying pipe 11 pressurizes and conveys sand in the high-pressure sand tank 12 to the sand blasting pipe 31, the sand blasting nozzle 32 uniformly sprays sand to different positions on the inner wall of the steel pipe 91 for sand blasting operation on the inner surface of the steel pipe 91, during the sand blasting operation, waste generated by sand blasting enters the dust box 62, floating dust enters dust collecting equipment from the dust collecting pipe 64, and the rest waste is discharged from a waste discharge port by gravity, during the sand blasting operation, the steel pipe 91 to be processed is conveyed to a position of a material loading standby station 92 on the double-chain conveyor 21 by the material loading equipment, the third power cylinder 541 drives the push plate 542 and the push rod 543 to move, and the push rod 543 pushes the sand blasting assembly 3 in the steel pipe 91 at a material discharging standby station 94 on the double-chain conveyor 21, so that one end of the sand blasting assembly 3 is abutted with the belt conveyor 51, during the sand blasting operation, the belt conveyor 51 drives the sand blasting assembly 3 to move away from the material standby station 94 to the material loading station 3 to the other position of the steel pipe 91, and the material is conveyed to the material standby station 3 at the material standby station 91 when the material standby station is conveyed by the material standby station 3, and the material standby station 3 is conveyed by the material standby station 3;
S3, as shown in FIG. 4, after the sand blast nozzle 32 moves out of the steel pipe 91, the rail trolley 14 is stopped, the valve of the sand conveying pipe 11 is closed, the second driving motor 72 stops working and does not drive the steel pipe 91 to rotate any more, the clamping butt joint mechanism 4 works, the first driving motor 403 drives the L-shaped clamping arm 410 to rotate, the L-shaped clamping arm 410 is far away from the front end flange 34, and the rail trolley 14 moves to a small displacement in a direction far away from the steel pipe 91, so that the front end flange 34 is far away from the tail end flange 15;
s4, as shown in FIG. 13, the first power cylinder 63 drives the upper movable part 622 to ascend so as to leave the ascending position of the steel pipe 91, as shown in FIG. 7, the second power cylinder 23 drives the double-chain conveyor 21 to ascend, the accessory 24 ascends to be in contact with the steel pipe 91 of the sand blasting station 93, the steel pipe 91 of the sand blasting station 93 is lifted again, the steel pipe 91 of the sand blasting station 93 ascends to be separated from the supporting wheel 74, the double-chain conveyor 21 drives the steel pipe 91 to move, the steel pipe 91 at the sand blasting station 93 is conveyed to the blanking standby station 94, and the steel pipe 91 at the feeding standby station 92 is conveyed to the sand blasting station 93;
S5, as shown in FIG. 6, the second power cylinder 23 drives the double-chain conveyor 21 to descend, the steel pipe 91 of the sand blasting station 93 is contacted with the riding wheel 74 and separated from the accessory 24, the steel pipe 91 of the sand blasting station 93 descends into the semicircular opening 623 of the lower fixed part 621, meanwhile, the first power cylinder 63 drives the upper movable part 622 to descend into contact with the lower fixed part 621, as shown in FIG. 12, at the moment, the two semicircular openings 623 form an opening surrounding the steel pipe 91, and the pinch roller assembly 65 contacts with the top of the steel pipe 91 to compress the steel pipe 91, so that the circular runout and axial movement of the steel pipe 91 are limited;
S6, the track trolley 14 moves to a small displacement in a direction approaching to the steel pipe 91, so that the front end flange 34 approaches to the tail end flange 15; the first driving motor 403 drives the L-shaped clamping arm 410 to rotate, the L-shaped clamping arm 410 is contacted with the front end flange 34, the front end flange 34 is pressed on the rear end flange 15, so that the front end flange 34 and the rear end flange 15 are connected quickly, the second driving motor 72 drives the first rotating shaft 73 and the riding wheel 74 to rotate, the riding wheel 74 drives the steel pipe 91 of the sand blasting station 93 to rotate, as shown in figure 5, the rail trolley 14 drives the high-pressure sand tank 12, the sand conveying pipe 11 and the sand blasting assembly 3 to move towards the direction close to the steel pipe 91, the sand blasting assembly 3 is inserted into the steel pipe 91, the valve of the sand conveying pipe 11 is opened, the sand conveying pipe 11 pressurizes and conveys sand in the high-pressure sand tank 12 to the pipe 31, the sand spraying nozzle 32 sprays sand evenly to different positions on the inner wall of the steel pipe 91, and processes the inner surface of the steel pipe 91;
S7, after the sand spraying nozzle 32 moves out of the steel pipe 91, the rail trolley 14 stops, the valve of the sand conveying pipe 11 is closed, the second driving motor 72 stops working and does not drive the steel pipe 91 to rotate any more, the clamping butt joint mechanism 4 works, the first driving motor 403 drives the L-shaped clamping arm 410 to rotate, the L-shaped clamping arm 410 is far away from the front end flange 34, the rail trolley 14 moves to a small displacement in a direction far away from the steel pipe 91, the front end flange 34 is far away from the tail end flange 15, and the sand spraying assembly 3 is separated from the sand conveying pipe 11 in the steel pipe 91;
s8, the first power cylinder 63 drives the upper movable part 622 to ascend, the second power cylinder 23 drives the double-chain conveyor 21 to ascend, the accessory 24 ascends to be in contact with the steel pipe 91 of the sand blasting station 93, the steel pipe 91 of the sand blasting station 93 is lifted again, the steel pipe 91 of the sand blasting station 93 ascends to be above the supporting wheel 74 and is separated from the supporting wheel 74, the time spent on the one-way ineffective movement of the sand blasting assembly 3 is at least 6S, the greater the length of the steel pipe 91 and the sand blasting pipe 31 is, the longer the time spent, the total time spent on S7 and S8 is about 2S, and the time spent on the one-way ineffective movement of the sand blasting assembly 3 is far less than the time spent on the one-way ineffective movement of the sand blasting assembly 3, so that intermittent time spent on sand blasting treatment can be saved, and the processing efficiency is improved;
S9, driving the steel pipe 91 to move by the double-chain conveyor 21, conveying the steel pipe 91 at the sand blasting station 93 and the sand blasting assembly 3 in the steel pipe 91 to a blanking standby station 94, and conveying the steel pipe 91 at the feeding standby station 92 and the sand blasting assembly 3 in the steel pipe 91 to the sand blasting station 93;
s10, circulating S1 to S9.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Claims (6)
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| CN205272290U (en) * | 2016-01-11 | 2016-06-01 | 河北榆构建材有限公司 | Pc component production line |
| CN213289951U (en) * | 2020-08-04 | 2021-05-28 | 嘉善耀升电子科技有限公司 | Automatic sand blasting production line |
| CN214519636U (en) * | 2020-12-29 | 2021-10-29 | 太仓嘉禾石油钢管配套设备有限公司 | Sandblasting device for inner wall of conveying pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2043544U (en) * | 1988-10-23 | 1989-08-30 | 裘增达 | Sand-griding machine for internal surface of a glass shell |
| CN210584764U (en) * | 2019-04-17 | 2020-05-22 | 佛山市南海区江鑫机械设备厂 | Sand blasting mixer |
| CN110900466B (en) * | 2019-12-10 | 2020-12-25 | 海宁奥通汽车零件有限公司 | Jet-propelled sand blasting equipment |
| CN112742644A (en) * | 2020-12-04 | 2021-05-04 | 上海航天设备制造总厂有限公司 | Flexible self-adaptive coating production line system suitable for aerospace products |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205272290U (en) * | 2016-01-11 | 2016-06-01 | 河北榆构建材有限公司 | Pc component production line |
| CN213289951U (en) * | 2020-08-04 | 2021-05-28 | 嘉善耀升电子科技有限公司 | Automatic sand blasting production line |
| CN214519636U (en) * | 2020-12-29 | 2021-10-29 | 太仓嘉禾石油钢管配套设备有限公司 | Sandblasting device for inner wall of conveying pipeline |
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