CN108687677B - Automatic sand blasting machine for inner wall of pipeline - Google Patents
Automatic sand blasting machine for inner wall of pipeline Download PDFInfo
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- CN108687677B CN108687677B CN201810440847.XA CN201810440847A CN108687677B CN 108687677 B CN108687677 B CN 108687677B CN 201810440847 A CN201810440847 A CN 201810440847A CN 108687677 B CN108687677 B CN 108687677B
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- sand blasting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
- B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
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Abstract
The invention provides an automatic sand blasting machine for the inner wall of a pipeline, which comprises a storage device, a conveying device, a feeding device, a V-shaped bracket, a pipe fitting rotation driving device and a sand blasting device. The V-shaped support, the pipe fitting rotation driving device and the sand blasting device are divided into two groups to form two sand blasting stations, and sand blasting operation can be simultaneously performed on two steel pipes; the sand blasting device can adjust the position of a spray gun according to the diameter of the steel pipe, an L-shaped rocker arm provided with the spray gun makes reciprocating swing motion under the driving of an air cylinder, and uniformly sprays abrasive materials to the inner wall of the steel pipe in cooperation with the rotation of the steel pipe; the two spray guns are respectively connected with the two sand blasting tanks, one spray gun carries out sand blasting operation, the sand blasting tank connected with the other spray gun carries out abrasive recovery, and the two spray guns work alternately, so that the sand blasting operation is carried out uninterruptedly. The invention has high automation degree, simple and reasonable structure, continuous and compact sand blasting process and high efficiency, and can realize sand blasting treatment of steel pipes with various pipe diameters.
Description
Technical Field
The invention relates to the technical field of sand blasting and rust removing, in particular to an automatic sand blasting machine for the inner wall of a pipeline.
Background
In modern energy construction, urban municipal infrastructure construction and other projects, pipeline construction projects are more and more, and in order to ensure the safe, stable and long-term operation of the pipelines, some technical problems need to be solved, and pipeline corrosion prevention is an important aspect of the technical problems. Among the corrosion prevention measures for pipelines, the application of the coating for corrosion prevention is the most extensive. The key operation of coating construction is cleaning and derusting the surface of the pipe wall, if the cleaning and derusting are not thorough, the quality of the coating cannot be ensured, and the corrosion resistance is unreliable. At present, the commonly adopted rust removal methods at home and abroad comprise an acid cleaning method, tool rust removal and sand blasting treatment, and sand blasting treatment is the most widely used method in the field of pipeline rust removal at present.
The sand blasting process is to spray abrasive to the surface of the workpiece to be treated at high speed through a nozzle by using compressed air as power to remove rust spots and dirt on the surface of the workpiece, so that the surface of the workpiece obtains certain cleanliness and different roughness, and the mechanical property of the surface of the workpiece is improved, thereby improving the fatigue resistance of the workpiece, increasing the adhesive force between the workpiece and a coating, prolonging the durability of the coating, and being beneficial to the leveling and decoration of a coating. The existing sand blasting technology and equipment are low in automation degree, sand blasting in a workshop is mostly manual operation, the working environment is poor, the operation intensity is high, sand dust, splashed sand and the like are extremely harmful to human bodies and the environment. And automatic sand blasting equipment is mostly through travelling car or draw gear drive spray gun and steel pipe and make relative motion, makes the spray gun get into the inside sandblast operation of accomplishing of steel pipe, and equipment investment is big, and area is big, has great burden to some small and medium-sized enterprises.
Disclosure of Invention
The invention aims to provide an automatic sand blasting machine for the inner wall of a pipeline, which can treat pipe diameters of various specifications and has low investment cost and high working efficiency.
The specific contents thereof are as follows.
The utility model provides an automatic sand blasting machine of pipeline inner wall, is including storage device 1, conveyer 2, loading attachment 3, V type support 4, pipe fitting rotary drive device 5, sand blasting unit 6.
The storage device 1 consists of a plurality of storage racks 7, is arranged side by side at equal intervals and is used for placing steel pipes to be treated; the material storage frame 7 is a trapezoidal steel frame 8 formed by welding structural steel, is in a right-angle trapezoidal shape, has a certain angle with the horizontal plane at the upper oblique waist edge so that steel pipes can automatically roll down, and the trapezoidal steel frame 8 is provided with a baffle 9 with adjustable height for limiting the steel pipes with different pipe diameters.
The conveying device 2 is composed of a plurality of conveying frames 10 which are arranged in a row at equal intervals and divided into two groups: the conveying frame group I and the conveying frame group II are arranged in parallel; the conveying frame 10 is provided with a roller 13 and a motor 12, and the motor 12 drives the roller 13 to rotate through chain transmission to advance the steel pipe.
The feeding device 3 comprises a feeding device I3-1 and a feeding device II 3-2, wherein the feeding device I3-1 is arranged in a gap of the storage device 1 and used for pushing the steel pipes out of the storage device 1 one by one; and the feeding device II 3-2 is arranged in a gap of the conveying frame group II and is used for pushing the steel pipe out of the conveying frame group II.
The feeding device I3-1 is provided with the material pushing plate 21 which is arranged in a clamping groove of the air cylinder connecting piece 22, can be adjusted left and right according to the diameter of the steel pipe and is fixed through a bolt, and the first air cylinder 23 is ensured to push out only one steel pipe from the material storage device 1 in each action.
Two shifting sheets 27 are arranged on the feeding device II 3-2 and are respectively connected with a second air cylinder 26, the inclined edges of the shifting sheets 27 respectively point to the sand blasting stations on the two sides of the conveying frame group II, and the second air cylinders 26 alternately act to alternately push the steel pipes on the conveying frame group II to the V-shaped supports 4 of the two sand blasting stations.
The V-shaped support 4, the pipe fitting rotary driving device 5 and the sand blasting device 6 are two groups in total to form two sand blasting stations which are symmetrically arranged on two sides of the conveying frame group II.
The V-shaped bracket 4 is positioned below the pipeline rotation driving device 5 and consists of a fixed bracket baffle 31 and a movable bracket baffle 35; the movable support baffle 35 is hinged with the fixed support baffle 31, and the movable support baffle 35 is driven by the third air cylinder 33 to turn over up and down to form a structure 120oAnd the V-shaped included angle is used for supporting the steel pipe.
The pipeline rotation driving mechanism consists of a supporting frame 42, a lower pressing bracket 46 and a roller frame 47; the lower pressing brackets 46 are arranged on the supporting frames 42, and each supporting frame 42 is provided with two lower pressing brackets 46 which are driven by the fourth air cylinder 44 to move up and down; the bottom of the lower pressing support 46 is provided with a roller carrier 47, and the roller carrier 47 is driven by the lower pressing support to contact with the outer wall of the steel pipe, so that the steel pipe is driven to rotate.
The sand blasting device 6 is provided with a sand blasting trolley 50 which is arranged on a track 68 and driven by a sixth air cylinder 70; the sand blasting trolley 50 is provided with two spray guns 58 which are respectively connected with the two sand blasting tanks, the spray gun 58 at the working position carries out sand blasting operation, the sand blasting tank connected with the other spray gun 58 carries out abrasive material recovery, and after the abrasive material of the sand blasting tank connected with the spray gun 58 at the working position is consumed, the sixth air cylinder 70 drives the sand blasting trolley to complete the switching of the spray guns 58 and simultaneously switches to the other sand blasting tank for sand supply, so that the sand blasting operation is carried out uninterruptedly.
The two spray guns 58 are respectively and fixedly arranged on the two L-shaped rocker arms 60 through U-shaped bolts 59, and the center lines of the spray guns 58 in the working positions are aligned with the center of an included angle of the V-shaped bracket 4; the L-shaped rocker arm 60 and the fifth cylinder 62 form two hinged triangles and are arranged on the supporting plate 65; the L-shaped rocker arm 60 is driven by the fifth cylinder 62 to do reciprocating swing motion, the spraying angle of the spray gun 58 is constantly changed, and the grinding materials are uniformly sprayed on the inner wall of the steel pipe to be treated by matching with the rotation of the steel pipe.
The sand blasting trolley is provided with a rocker arm railing 56 and a scissor jack 57; the rocker arm railing 56 is arranged on the notch of the trolley bracket 54 in front of the L-shaped rocker arm 60 and used for limiting the swing amplitude of the L-shaped rocker arm 60; the scissor jack 57 is fixedly connected with the trolley bracket 54 and the supporting plate 65; the height of the spray gun 58 is changed by adjusting the scissor jack 57, so that the circle center of the spray gun 58 is superposed with the circle center of the steel pipe to be processed, and the position of the rocker arm railing 56 on the notch of the trolley bracket 54 is adjusted in a matching manner, so that the spray gun cannot touch the steel pipe when the L-shaped rocker arm 60 swings, and the spraying range of the spray gun 58 when swinging is enabled to cover the inner wall of the steel pipe to be processed as large as possible.
Compared with the prior equipment, the invention has the following advantages and effects: the sand blasting stations arranged on the two sides of the conveying frame group II can perform sand blasting operation on two steel pipes at the same time, and the conveying device and the feeding device continuously convey the steel pipes for the sand blasting stations, so that the sand blasting process is continuous and compact, and the sand blasting efficiency is improved; the spray gun can be adjusted according to the diameter of the steel pipe to adapt to sand blasting operation with various pipe diameters, and the L-shaped rocker arm is in reciprocating swing fit with the rotation of the steel pipe to enable the grinding materials to be uniformly sprayed to the inner wall of the steel pipe, so that the sand blasting quality is improved; the two sand blasting tanks circularly and alternately supply sand for sand blasting operation, so that the sand blasting operation is carried out uninterruptedly. The whole sand blasting system is high in automation degree, simple and reasonable in structure, continuous and compact in sand blasting process, high in efficiency and low in equipment cost, can realize sand blasting of steel pipes with various pipe diameters, and can effectively protect harm to human bodies and environment in a protected mode.
Drawings
FIG. 1 is an axonometric view of the structure of an automatic sand blasting machine for the inner wall of a pipeline.
FIG. 2 is a front view of the automatic sand blasting machine for the inner wall of a pipeline.
FIG. 3 is a top view of the automatic sand blasting machine for the inner wall of the pipeline.
FIG. 4 is a side view of the automatic sand blasting machine for the inner wall of the pipeline.
Fig. 5 is a schematic structural view of a storage rack.
Fig. 6 is a schematic diagram of a structure of a transfer rack.
Fig. 7 is a schematic structural diagram of a feeding device I.
Fig. 8 is a schematic structural diagram of a feeding device II.
FIG. 9 is a schematic view of a V-shaped stent structure.
Fig. 10 is a schematic structural view of a pipeline driving device.
Fig. 11 is a schematic structural view of the blasting apparatus.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings in an embodiment of the invention.
As shown in figures 1-4, the automatic sand blasting machine for the inner wall of the pipeline comprises a material storage device 1, a conveying device 2, a feeding device 3, a V-shaped support 4, a pipe fitting rotation driving device 5 and a sand blasting device 6.
The storage device 1 consists of 3 storage racks 7, is arranged side by side at equal intervals and is used for placing steel pipes to be treated; as shown in fig. 5, the material storage rack 7 is a trapezoidal steel frame 8 formed by welding structural steel, and has a right-angled trapezoidal shape, the oblique waist edge of the trapezoidal steel frame is located above the horizontal plane to form a certain angle, so that the steel pipes can roll down automatically, and the trapezoidal steel frame 8 is provided with a height-adjustable baffle 9 for limiting the steel pipes with different pipe diameters.
The conveying device 2 consists of 8 conveying frames 10 which are arranged in a row at equal intervals and divided into two groups: the conveying frame group I and the conveying frame group II are arranged in parallel; as shown in fig. 6, the conveyor 10 is provided with rollers 13 and a motor 12, and the motor 12 drives the rollers 13 to rotate through a chain drive to advance the steel tube.
The feeding device 3 comprises a feeding device I3-1 and a feeding device II 3-2, wherein the feeding device I3-1 is arranged in a gap of the storage device 1 and used for pushing the steel pipes out of the storage device 1 one by one; and the feeding device II 3-2 is arranged in a gap of the conveying frame group II and is used for pushing the steel pipe out of the conveying frame group II.
As shown in fig. 7, the material pushing plate 21 is mounted on the feeding device i 3-1, is mounted in a clamping groove of the cylinder connecting piece 22, can be adjusted left and right according to the diameter of the steel pipe and is fixed by a bolt, so that the first cylinder 23 can only push out one steel pipe from the material storing device 1 in each action.
As shown in fig. 8, two shifting pieces 27 are mounted on the feeding device ii 3-2 and are respectively connected with one second air cylinder 26, the inclined edges of the shifting pieces 27 respectively point to the sand blasting stations on two sides of the conveying frame group ii, and the second air cylinders 26 alternately act to alternately push the steel pipes on the conveying frame group ii to the V-shaped supports 4 of the two sand blasting stations.
The V-shaped support 4, the pipe fitting rotary driving device 5 and the sand blasting device 6 are two groups in total to form two sand blasting stations which are symmetrically arranged on two sides of the conveying frame group II.
The V-shaped bracket 4 is positioned below the pipeline rotation driving device 5. As shown in fig. 9, the V-shaped bracket 4 is composed of a fixed bracket baffle 31 and a movable bracket baffle 35; the movable support baffle 35 is hinged with the fixed support baffle 31, and the movable support baffle 35 is driven by the third air cylinder 33 to turn over up and down to form a structure 120oAnd the V-shaped included angle is used for supporting the steel pipe.
As shown in fig. 10, the pipe rotation driving mechanism is composed of a supporting frame 42, a lower pressing bracket 46 and a roller frame 47; the lower pressing brackets 46 are arranged on the supporting frames 42, and each supporting frame 42 is provided with two lower pressing brackets 46 which are driven by the fourth air cylinder 44 to move up and down; the bottom of the lower pressing support 46 is provided with a roller carrier 47, and the roller carrier 47 is driven by the lower pressing support to contact with the outer wall of the steel pipe, so that the steel pipe is driven to rotate.
As shown in fig. 11, the blasting device 6 is provided with a blasting cart 50 mounted on a rail 68 and driven by a sixth air cylinder 70; the sand blasting trolley 50 is provided with two spray guns 58 which are respectively connected with the two sand blasting tanks, the spray gun 58 at the working position carries out sand blasting operation, the sand blasting tank connected with the other spray gun 58 carries out abrasive material recovery, and after the abrasive material of the sand blasting tank connected with the spray gun 58 at the working position is consumed, the sixth air cylinder 70 drives the sand blasting trolley to complete the switching of the spray guns 58 and simultaneously switches to the other sand blasting tank for sand supply, so that the sand blasting operation is carried out uninterruptedly.
The two spray guns 58 are respectively and fixedly arranged on the two L-shaped rocker arms 60 through U-shaped bolts 59, and the center lines of the spray guns 58 in the working positions are aligned with the center of an included angle of the V-shaped bracket 4; the L-shaped rocker arm 60 and the fifth cylinder 62 form two hinged triangles and are arranged on the supporting plate 65; the L-shaped rocker arm 60 is driven by the fifth cylinder 62 to do reciprocating swing motion, the spraying angle of the spray gun 58 is constantly changed, and the grinding materials are uniformly sprayed on the inner wall of the steel pipe to be treated by matching with the rotation of the steel pipe.
The sand blasting trolley is provided with a rocker arm railing 56 and a scissor jack 57; the rocker arm railing 56 is arranged on the notch of the trolley bracket 54 in front of the L-shaped rocker arm 60 and used for limiting the swing amplitude of the L-shaped rocker arm 60; the scissor jack 57 is fixedly connected with the trolley bracket 54 and the supporting plate 65; the height of the spray gun 58 is changed by adjusting the scissor jack 57, so that the circle center of the spray gun 58 is superposed with the circle center of the steel pipe to be processed, and the position of the rocker arm railing 56 on the notch of the trolley bracket 54 is adjusted in a matching manner, so that the spray gun cannot touch the steel pipe when the L-shaped rocker arm 60 swings, and the spraying range of the spray gun 58 when swinging is enabled to cover the inner wall of the steel pipe to be processed as large as possible.
In this embodiment, an electric control device and a detection device (not shown) are further provided, an input end of the electric control device is connected with a control electrical apparatus such as a button switch and a travel switch, and an output end of the electric control device is connected with a motor, an electromagnetic directional valve, and the like. Under the control of the electric control device, manual and automatic sand blasting operation of the steel pipe can be realized.
An automatic sand blasting machine for the inner wall of a pipeline has the following working process.
Before sand blasting, the system needs to be properly adjusted according to the diameter of the steel pipe to be treated. The height of a baffle plate 9 on the storage rack 7 is adjusted and fixed by a bolt, so that the steel pipe is limited not to roll out of the storage device 1; adjusting a material pushing plate 21 on the feeding device I3-1, and fixing the material pushing plate with bolts to ensure that only one steel pipe can be pushed out of the material storage device 1 each time; the scissor jack 57 is adjusted to change the height of the spray gun 58, so that the circle center of the spray gun and the circle center of the steel pipe to be processed are at the same height, and the position of the rocker arm railing 56 on the notch of the trolley bracket is adjusted in a matching manner, so that the spray gun 58 cannot touch the steel pipe to be processed when the L-shaped rocker arm 60 swings, and the sand blasting range can cover the inner wall of the steel pipe as large as possible when the L-shaped rocker arm swings.
The steel pipe of same pipe diameter is put the tiling through workshop crane and is placed on storage device 1, and the steel pipe of separation blade 9 restriction continues to roll downwards, and storing device 1 is released with the steel pipe of storage device 1 bottommost under the effect of first cylinder 23 to scraping wings 21, and the steel pipe rolls to conveying frame group I, and the motor starts, and it is rotatory to drive the gyro wheel, makes the steel pipe to advancing, when the steel pipe advances to conveying frame group II and triggers the travel switch of installing at conveying frame group II terminals, the motor outage. At the moment, the feeding device I3-1 continues to push out a steel pipe from the storage device 1 and roll to the conveying frame group I, and the shifting piece 27 on the feeding device II 3-2 pushes out the steel pipe on the conveying frame group II, so that the steel pipe rolls to the V-shaped support 4 of the sand blasting station I.
After the first steel pipe rolls to the V-shaped support 4 of the sand blasting station I, the motor is started again, the second steel pipe on the conveying frame group I is conveyed to the conveying frame group II, after the first steel pipe is conveyed to the place to trigger the travel switch, the motor is powered off, the feeding device I3-1 continues to push the third steel pipe from the storage device 1 to roll to the conveying frame group I, and the feeding device II 3-2 pushes the second steel pipe on the conveying frame group II to roll to the V-shaped support 4 of the sand blasting station II. After the second steel pipe rolls to the V-shaped bracket 4 of the sand blasting station II, the motor is started again, and the third steel pipe is conveyed to the conveying frame group II. At this moment, the sand blasting stations on the two sides of the conveying frame group II are all provided with a steel pipe for sand blasting operation, so that the third steel pipe is conveyed to the conveying frame group II to trigger the travel switch, the motor is powered off, the steel pipe is stopped on the conveying frame group II to wait, meanwhile, the feeding device I pushes out the steel pipe from the storage device 1, and the steel pipe is stopped on the conveying frame group I. After the steel pipe at any one sand blasting station finishes sand blasting operation, the feeding device II 3-2 pushes the steel pipe waiting on the conveying frame group 2 out to roll to the V-shaped support 4 at the sand blasting station, and then the feeding device I3-1 and the conveying device 2 continue to push the steel pipe, so that one steel pipe is equally reserved on the conveying frame group I and the conveying frame group II.
Before the steel pipe rolls to the V-shaped support 4 of the sand blasting station, the V-shaped support 4 needs to be overturned under the action of the third cylinder 33 to move the baffle 35 to form 120oThe V-shaped bracket and the roller frame 46 of the pipeline rotation driving device 5 are required to be lifted by the fourth cylinder 44. After the steel pipe rolls to the V-shaped bracket 4, the fourth cylinder 44 pushes the roller carrier 46 to move downwards to press the steel pipe, anddriving the steel pipe to rotate; when the steel pipe rotates, the sand blasting tank connected with the spray gun 58 at the working position produces sand, and the L-shaped rocker arm 60 corresponding to the spray gun 58 makes reciprocating swinging motion under the action of the fifth cylinder 62, so that the grinding materials are uniformly sprayed on the inner wall of the steel pipe; the other spray gun is kept in the vertical state, and the connected sand blasting tank recovers the grinding materials. After the sand blasting is finished, the sand tank stops sand discharging, the L-shaped rocker arm returns to the vertical state, the roller carrier 46 rises, the movable baffle 35 of the V-shaped support 4 turns downwards, the steel pipe rolls out of the V-shaped support 4, and then the movable baffle 35 turns back to wait for the next steel pipe.
When the abrasive of the sand blasting tank connected with the spray gun 58 in the working position is consumed, the sixth air cylinder 70 pushes the sand blasting trolley 50 to complete the switching of the spray gun 58 and simultaneously switch the sand blasting tank, so that the sand blasting operation is carried out uninterruptedly; for longer steel pipes, the sand blasting treatment of the inner wall of the whole steel pipe cannot be finished by one-time sand blasting, so that after the sand blasting is finished, the sand blasting operation is carried out again by turning the steel pipes in the same batch, and the sand blasting quality of the inner wall of the steel pipe is ensured.
The system operates in a circulating mode, steel pipes are arranged on the sand blasting stations on the two sides of the conveying frame group II, and one steel pipe is equally reserved on the conveying frame group I and the conveying frame group II until the sand blasting operation is finished. The actions of all actuating mechanisms of the system are controlled by the electric control device, the system has the advantages of high automation degree, simple and reasonable structure, continuous and compact sand blasting process, high efficiency and low equipment cost, can realize sand blasting of steel pipes with various pipe diameters, and can be widely applied to sand blasting treatment of pipelines in various pipeline industries.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides an automatic sand blasting machine of pipeline inner wall, including storage device (1), conveyer (2), loading attachment (3), V type support (4), pipe fitting rotary drive device (5), sand blasting unit (6), its characterized in that:
the conveying device (2) is composed of a plurality of conveying frames (10), which are arranged in a row at equal intervals and divided into two groups: the conveying frame group I and the conveying frame group II are arranged in parallel;
the storage device (1) is arranged on one side of the conveying frame group I and used for placing steel pipes to be treated;
the feeding device (3) comprises a feeding device I (3-1) and a feeding device II (3-2); the feeding device I (3-1) is arranged in a gap of the storage device (1) and used for pushing the steel pipes out of the storage device (1) one by one; the feeding device II (3-2) is arranged in a gap of the conveying frame group II and is used for pushing the steel pipe out of the conveying frame group II; the feeding device I (3-1) is provided with a material pushing plate (21) which is arranged in a clamping groove of the cylinder connecting piece (22), can be adjusted left and right according to the pipe diameter of the steel pipe and is fixed through a bolt, and the first cylinder (23) is ensured to push out only one steel pipe from the material storage device (1) in each action; two shifting sheets (27) are arranged on the feeding device II (3-2) and are respectively connected with a second air cylinder (26), the inclined edges of the shifting sheets (27) point to the sand blasting stations on the two sides of the conveying frame group II respectively, and the second air cylinders (26) alternately act to push the steel pipes on the conveying frame group II to the V-shaped supports (4) of the two sand blasting stations alternately;
the V-shaped support (4), the pipe fitting rotation driving device (5) and the sand blasting device (6) are divided into two groups to form two sand blasting stations which are symmetrically arranged on two sides of the conveying frame group II;
the V-shaped bracket (4) is positioned below the pipeline rotation driving device (5) and is used for supporting the steel pipe;
the sand blasting device (6) is positioned below the pipeline rotation driving device (5) and is used for completing sand blasting operation on the inner wall of the steel pipe; the sand blasting device (6) is provided with a sand blasting trolley (50) which is arranged on a track (68) and driven by a sixth air cylinder (70); the sand blasting trolley (50) is provided with two spray guns (58) which are respectively connected with the two sand blasting tanks, the spray gun (58) in the working position performs sand blasting operation, the other sand blasting tank connected with the spray gun (58) performs abrasive material recovery, after the abrasive material of the sand blasting tank connected with the spray gun (58) in the working position is consumed, the sixth air cylinder (70) drives the sand blasting trolley (50) to complete switching of the spray gun (58), and simultaneously, the sand blasting operation is switched to the other sand blasting tank for sand supply, so that the sand blasting operation is performed uninterruptedly.
2. The automatic sand blasting machine for the inner wall of the pipeline according to claim 1, characterized in that: the two spray guns (58) are respectively and fixedly arranged on the two L-shaped rocker arms (60) through U-shaped bolts (59), and the center lines of the spray guns (58) in the working positions are aligned with the center of an included angle of the V-shaped support (4); the L-shaped rocker arm (60) and the fifth cylinder (62) form two hinged triangles and are arranged on the supporting plate (65); the L-shaped rocker arm (60) is driven by the fifth cylinder (62) to do reciprocating swing motion, the spraying angle of the spray gun (58) is constantly changed, and the grinding materials are uniformly sprayed on the inner wall of the steel pipe to be treated by matching with the rotation of the steel pipe.
3. The automatic sand blasting machine for the inner wall of the pipeline according to claim 1, characterized in that: the sand blasting trolley (50) is provided with a rocker arm railing (56) and a scissor jack (57); the rocker arm railing (56) is arranged on a notch of the trolley bracket (54) in front of the L-shaped rocker arm (60) and used for limiting the swing amplitude of the L-shaped rocker arm (60); the scissor jack (57) is fixedly connected with the trolley support (54) and the support plate (65), the height of the spray gun (58) is changed by adjusting the scissor jack (57), the circle center of the spray gun (58) is overlapped with the circle center of the steel pipe to be processed, the position of the rocker arm railing (56) on the notch of the trolley support (54) is adjusted in a matching mode, the spray gun cannot touch the steel pipe when the L-shaped rocker arm (60) swings, and the spraying range when the spray gun (58) swings covers the inner wall of the steel pipe to be processed as large as possible.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440847.XA CN108687677B (en) | 2018-05-10 | 2018-05-10 | Automatic sand blasting machine for inner wall of pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440847.XA CN108687677B (en) | 2018-05-10 | 2018-05-10 | Automatic sand blasting machine for inner wall of pipeline |
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| CN108687677A CN108687677A (en) | 2018-10-23 |
| CN108687677B true CN108687677B (en) | 2020-06-16 |
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| CN110153899B (en) * | 2019-06-11 | 2024-04-26 | 山东胜利长龙管道科技有限公司 | Full-automatic self-circulation bidirectional inward rust removal equipment and method for slender steel pipes |
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| JP2002166368A (en) * | 2000-11-29 | 2002-06-11 | Sumitomo Metal Ind Ltd | Tube inner surface grinding device and tube manufacturing method |
| JP5066895B2 (en) * | 2006-11-14 | 2012-11-07 | 旭硝子株式会社 | Glass substrate for display and manufacturing method thereof |
| CN201020665Y (en) * | 2007-03-09 | 2008-02-13 | 重庆斯普瑞涂装设备有限公司 | Steel pipe internal wall sand-blasting machine |
| CN103028849B (en) * | 2012-12-06 | 2015-06-10 | 武汉法利莱切割系统工程有限责任公司 | Automatic material feeding and discharging device of laser pipe cutting machine |
| CN103273427A (en) * | 2013-04-02 | 2013-09-04 | 江苏自强涂装机械有限公司 | Small automatic sand blaster |
| CN105347008A (en) * | 2015-11-25 | 2016-02-24 | 陕西昕宇表面工程有限公司 | Automatic pipe separating feeding device and separating method |
| CN106345662A (en) * | 2016-11-22 | 2017-01-25 | 中油管道防腐工程有限责任公司 | Automatic production line and production method for anti-corrosion steel tubes |
| CN107243841A (en) * | 2017-07-19 | 2017-10-13 | 四川大学 | A kind of automatic processing apparatus for being used to improve steel pipe inner wall surface property |
-
2018
- 2018-05-10 CN CN201810440847.XA patent/CN108687677B/en active Active
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