CN114749293A - Multi-branch parallel device for electrostatic spraying of epoxy resin coating composite steel pipe for underground coal mine - Google Patents
Multi-branch parallel device for electrostatic spraying of epoxy resin coating composite steel pipe for underground coal mine Download PDFInfo
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- CN114749293A CN114749293A CN202210444573.8A CN202210444573A CN114749293A CN 114749293 A CN114749293 A CN 114749293A CN 202210444573 A CN202210444573 A CN 202210444573A CN 114749293 A CN114749293 A CN 114749293A
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- block
- steel pipe
- fixed
- epoxy resin
- pipe body
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 116
- 239000010959 steel Substances 0.000 title claims abstract description 116
- 239000003822 epoxy resin Substances 0.000 title claims abstract description 46
- 229920000647 polyepoxide Polymers 0.000 title claims abstract description 46
- 238000000576 coating method Methods 0.000 title claims abstract description 44
- 239000011248 coating agent Substances 0.000 title claims abstract description 37
- 238000007590 electrostatic spraying Methods 0.000 title claims abstract description 30
- 239000002131 composite material Substances 0.000 title claims abstract description 28
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 54
- 238000007790 scraping Methods 0.000 claims description 41
- 239000003973 paint Substances 0.000 claims description 19
- 239000007921 spray Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 3
- 238000005192 partition Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000005086 pumping Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 229920006334 epoxy coating Polymers 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000007592 spray painting technique Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/082—Plant for applying liquids or other fluent materials to objects characterised by means for supporting, holding or conveying the objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/12—Plant for applying liquids or other fluent materials to objects specially adapted for coating the interior of hollow bodies
-
- B08B1/165—
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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
Abstract
The invention discloses a plurality of parallel devices for electrostatic spraying of epoxy resin coating composite steel pipes for underground coal mines, which comprise a base, wherein a plurality of guide rods are fixed at the upper end of the base, the circumferential side walls of the guide rods are jointly connected with a horizontal plate in a sliding manner, a plurality of electric telescopic rods are fixed at the upper end of the base, the rod heads of the electric telescopic rods are all fixed with the bottom of the horizontal plate, a plurality of support rings are fixed at the upper end of the base, the upper end of each support ring is abutted against a steel pipe body, a plurality of spraying devices are arranged at the bottom of the horizontal plate, and an annular block is sleeved outside each steel pipe body. Has the advantages that: the annular blocks and the discs placed inside and outside the steel pipe body are utilized, spraying while the inside and the outside of the steel pipe body can be achieved in the horizontal plate and the raw material pumping process, the complete spraying to the inside and the outside of the steel pipe body can be achieved under the driving of the electric telescopic rod, and the spraying effect of the epoxy resin coating on the surface of the steel pipe body can be better.
Description
Technical Field
The invention relates to the technical field of steel pipe processing, in particular to a multi-branch parallel device for electrostatic spraying of an epoxy resin coating composite steel pipe for underground coal mines.
Background
The epoxy resin composite steel pipe is generally applied to fire-fighting water supply, and plays an important role in building a fire-fighting system, and the electrostatic spraying is mainly used for optimizing the surface quality of a metal or plastic workpiece, and the paint is sprayed into a mist shape by high air pressure, and is uniformly adsorbed on the surface of the workpiece and cured by utilizing the adsorption effect of static electricity, so that the purposes of attractiveness, wear resistance and the like are achieved;
when carrying out electrostatic spraying to the steel pipe among the prior art, mostly need carry out the spraying with the help of the spray gun, and inside the spray gun need stretch into the steel pipe to the spraying of steel pipe, can't guarantee the homogeneity of steel pipe inner wall spraying, the electrostatic spraying of single steel pipe only can be realized to traditional mode moreover handles for the machining efficiency of steel pipe is lower, for this reason, we have proposed one kind can be simultaneously to the many parallel devices of epoxy coating composite steel pipe electrostatic spraying for use in the pit of the even spraying of steel pipe inside and outside wall.
Disclosure of Invention
The invention aims to solve the problems that the uniform spraying of the surface of a steel pipe cannot be guaranteed, the spraying of a single steel pipe can be carried out at one time, and the machining efficiency is low in the prior art, and provides a multi-branch parallel device for electrostatic spraying of an epoxy resin coating composite steel pipe for an underground coal mine.
In order to achieve the purpose, the invention adopts the following technical scheme: a plurality of parallel devices for electrostatic spraying of epoxy resin coating composite steel pipes for underground coal mines comprise a base, wherein a plurality of guide rods are fixed at the upper end of the base, a horizontal plate is connected with the circumferential side walls of the guide rods in a sliding manner, a plurality of electric telescopic rods are fixed at the upper end of the base, rod heads of the electric telescopic rods are fixed with the bottom of the horizontal plate, a plurality of support rings are fixed at the upper end of the base, the upper end of each support ring abuts against a steel pipe body, a plurality of spraying devices are arranged at the bottom of the horizontal plate, annular blocks are sleeved outside each steel pipe body, discs are placed inside each steel pipe body, inner ring blocks are fixed on the inner wall of each annular block, outer ring blocks are fixed outside each disc, and a plurality of scraping devices and a plurality of limiting devices are arranged inside each inner ring block and each outer ring block, the scraping devices are in one-to-one correspondence with the limiting devices.
In the electrostatic spraying device for the epoxy resin coating composite steel pipe for the underground coal mine, the spraying device comprises a storage block fixed at the upper end of a horizontal plate, epoxy resin coating is filled in the storage block, a material injection pipe is inserted into the inner top of the storage block in a penetrating manner, a plurality of vertical rods are fixed at the bottom of the horizontal plate, and a fixing rod is fixed at the bottom of the horizontal plate.
In the electrostatic spraying device for multiple parallel steel pipes with epoxy resin coatings for underground coal mines, the bottoms of the vertical rods are fixed to the upper ends of the annular blocks, the bottoms of the fixed rods are fixed to the upper ends of the circular discs, the vertical rods and the fixed rods are provided with connecting pipes inside, the upper ends of the connecting pipes penetrate through the inside of the storage blocks, the bottoms of the connecting pipes inside the vertical rods penetrate through the inside of the annular blocks, and the bottoms of the connecting pipes inside the fixed rods penetrate through the inside of the circular discs.
In the above-mentioned multiple parallel device of epoxy resin coating composite steel pipe electrostatic spraying for pit in colliery, the inside of annular piece is fixed with a plurality of baffles, and is a plurality of the baffle divides annular piece inside into a plurality of storage spaces, every storage space and a plurality of connecting pipe one-to-one, a plurality of spray paint heads have all been inserted to the inside of annular piece and the outside of disc, and a plurality of the spray paint head is annular evenly distributed, annular piece and disc highly uniform.
In the electrostatic spraying device for the epoxy resin coating composite steel pipe for the underground coal mine, the scraping device comprises a horizontal groove formed in the inner wall of the inner ring block, the inner wall of the horizontal groove is connected with a sliding block in a sealing and sliding manner, the side wall of one end of the sliding block is connected with the inner wall of the horizontal groove through a plurality of connecting springs, and the side wall of the other end of the sliding block is fixed with the scraping block.
In the above-mentioned multiple parallel device of epoxy resin coating composite steel pipe electrostatic spraying for underground coal mine, scrape the piece and be the arc piece, the cross-section of scraping the piece is trapezoidal, the tip of scraping the piece offsets with the steel pipe body, and is a plurality of the lateral wall of scraping the piece corresponds and offsets.
In foretell colliery is in the pit with many parallel devices of epoxy coating composite steel pipe electrostatic spraying, stop device is including seting up the vertical groove in inner ring piece upper end, the inner wall sliding connection in vertical groove has vertical board, the standing groove has been seted up to the lateral wall of vertical board, the end fixing of slider has the stop plate, the tip of stop plate runs through the inner wall of horizontal groove and offsets with the standing groove inner wall, the stop plate is the trapezoidal plate, the standing groove is the trapezoidal groove.
In the above-mentioned many parallel devices of epoxy resin coating composite steel pipe electrostatic spraying for pit in colliery, the bottom of vertical board is fixed with the balancing weight, the bottom of balancing weight runs through to the below of inner ring piece, the upper end of inner ring piece is fixed with the fixed block, the mounting groove has been seted up to the lateral wall of vertical board, the inner wall sliding connection of mounting groove has the fixture block, the lateral wall and the mounting groove inner wall of fixture block pass through reset spring and are connected, the upper end of fixture block is the slope form, two draw-in grooves have been seted up to the lateral wall of fixed block, two the draw-in groove all corresponds with the fixture block.
Compared with the prior art, the invention has the advantages that:
1. according to the invention, the annular blocks and the circular discs which are placed inside and outside the steel pipe body are utilized, so that the simultaneous spraying of the inside and the outside of the steel pipe body can be realized in the horizontal plate and raw material pumping process, and the complete spraying of the inside and the outside of the steel pipe body can be realized under the driving of the electric telescopic rod, so that the spraying effect of the epoxy resin coating on the surface of the steel pipe body is better;
2. according to the invention, the multiple groups of spraying devices are arranged at the bottom of the horizontal plate, so that the simultaneous spraying of the surface coatings of the multiple steel pipe bodies can be realized in the moving process of the horizontal plate, the spraying efficiency of the epoxy resin coatings on the steel pipe bodies can be higher, the positions of the spraying heads do not need to be controlled manually and repeatedly, and the labor consumption can be reduced;
3. according to the invention, under the action of the balancing weight, the limiting of the sliding block can be realized, so that the close fitting of the scraping block in the scraping device and the inner wall and the outer wall of the steel pipe body can be ensured, the scraping block is positioned below the paint spraying head, impurities attached to the surface of the steel pipe body are cleaned before the paint spraying head sprays the inner part and the outer part of the steel pipe body, the condition that the epoxy resin paint is sprayed on the impurities to cause the coating missing on the surface of the steel pipe body can be avoided, and the spraying effect of the steel pipe body paint can be better;
4. according to the invention, after the balancing weight abuts against the upper end of the base, the vertical plate can move upwards, so that the limiting relation of the limiting plate can be relieved, the sliding block can slide along the inside of the horizontal groove, the scraping block is slightly contacted with the surface of the steel pipe body, the coating sprayed on the surface of the steel pipe body can be slightly wiped while the coating is not scraped, and therefore, the uniform spraying of the coating on the inner part and the outer part of the steel pipe body can be realized, and the coating spraying effect of the steel pipe body is better.
Drawings
FIG. 1 is a schematic structural view of a device for electrostatically spraying a plurality of parallel epoxy resin coated composite steel pipes for an underground coal mine, which is provided by the invention;
FIG. 2 is a main sectional view of a multi-branch parallel device for electrostatic spraying of an epoxy resin coating composite steel pipe for an underground coal mine, which is provided by the invention;
FIG. 3 is a main sectional view of a spraying device part of a multi-branch parallel device for electrostatic spraying of an epoxy resin coating composite steel pipe for an underground coal mine, which is provided by the invention;
FIG. 4 is a top view of a spraying device part of a multi-branch parallel device for electrostatic spraying of an epoxy resin coating composite steel pipe for an underground coal mine, which is provided by the invention;
FIG. 5 is an enlarged view of the body portion of the steel pipe of FIG. 2;
FIG. 6 is an enlarged view of the inner ring block part of the electrostatic spraying multi-branch parallel device for the epoxy resin coating composite steel pipe for the underground coal mine provided by the invention;
FIG. 7 is a top cross-sectional view of a scraper portion of a multi-branch parallel device for electrostatic spraying of an epoxy resin coated composite steel pipe for an underground coal mine according to the present invention;
fig. 8 is an enlarged view of a portion a in fig. 7.
In the figure: 1 base, 2 guide bars, 3 horizontal plates, 4 electric telescopic rod, 5 storage blocks, 6 material injection pipes, 7 support rings, 8 steel pipe bodies, 9 vertical rods, 10 fixed rods, 11 annular blocks, 12 disks, 13 connecting pipes, 14 clapboards, 15 storage spaces, 16 paint spray heads, 17 inner ring blocks, 171 outer ring blocks, 18 horizontal grooves, 19 sliding blocks, 20 connecting springs, 21 scraping blocks, 22 vertical grooves, 23 vertical plates, 24 placing grooves, 25 limiting plates, 26 balancing weights, 27 mounting grooves, 28 clamping blocks, 29 reset springs, 30 fixed blocks and 31 clamping grooves.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Referring to fig. 1-8, the electrostatic spraying multi-branch parallel device for epoxy resin coating composite steel pipes for underground coal mines comprises a base 1, a plurality of guide rods 2 are fixed at the upper end of the base 1, a horizontal plate 3 is connected with the circumferential side walls of the guide rods 2 in a sliding manner, a plurality of electric telescopic rods 4 are fixed at the upper end of the base 1, the rod heads of the electric telescopic rods 4 are fixed with the bottom of the horizontal plate 3, a plurality of support rings 7 are fixed at the upper end of the base 1, a steel pipe body 8 is supported at the upper end of each support ring 7, a plurality of spraying devices are arranged at the bottom of the horizontal plate 3, an annular block 11 is sleeved outside each steel pipe body 8, a disc 12 is placed inside each steel pipe body 8, an inner ring block 17 is fixed on the inner wall of each annular block 11, an outer ring block 171 is fixed outside each disc 12, a plurality of devices and a plurality of limiting devices are arranged inside each inner ring block 17 and each outer ring block 171, the scraping devices correspond to the limiting devices one by one.
The spraying device comprises a storage block 5 fixed at the upper end of a horizontal plate 3, epoxy resin coating is filled in the storage block 5, a material injection pipe 6 is inserted through the inner top of the storage block 5, the material injection pipe 6 is connected with an external raw material pumping mechanism to realize continuous supply of the epoxy resin coating, the raw material pumping mechanism is the prior art, and is not described in more detail herein, a plurality of vertical rods 9 are fixed at the bottom of the horizontal plate 3, and a fixing rod 10 is fixed at the bottom of the horizontal plate 3; the bottoms of the vertical rods 9 are fixed to the upper end of the annular block 11, the bottoms of the fixing rods 10 are fixed to the upper end of the disc 12, a connecting pipe 13 is arranged inside each vertical rod 9 and each fixing rod 10, the upper end of each connecting pipe 13 penetrates into the storage block 5, the bottom of each connecting pipe 13 inside each vertical rod 9 penetrates into the annular block 11, and the bottom of each connecting pipe 13 inside each fixing rod 10 penetrates into the disc 12; annular piece 11's inside is fixed with a plurality of baffles 14, a plurality of baffles 14 divide annular piece 11 inside into a plurality of storage space 15, every storage space 15 and a plurality of connecting pipe 13 one-to-one, annular piece 11's inside and disc 12's outside are all inserted and are equipped with a plurality of paint spray heads 16, a plurality of paint spray heads 16 are annular evenly distributed, annular piece 11 and disc 12 highly uniform, utilize moving down of horizontal plate 3, can realize the slow lapse of paint spray head 16, combine with a plurality of paint spray heads 16 that 8 inside and outside of steel pipe body are corresponding, can realize the while spraying to 8 inside and outside coatings of steel pipe body, can make 8 spraying efficiency of steel pipe body higher, and set up multiunit spraying device, can realize the while spraying of 8 surface coatings of a plurality of steel pipe body in the process of moving of horizontal plate 3, can make 8 epoxy coating spraying efficiency on the steel pipe body higher.
The scraping device comprises a horizontal groove 18 arranged on the inner wall of the inner ring block 17, the inner wall of the horizontal groove 18 is connected with a sliding block 19 in a sealing and sliding manner, the side wall of one end of the sliding block 19 is connected with the inner wall of the horizontal groove 18 through a plurality of connecting springs 20, and the side wall of the other end of the sliding block 19 is fixed with a scraping block 21; scrape piece 21 and be the arc piece, the cross-section of scraping piece 21 is scalariform, and the tip of scraping piece 21 offsets with steel pipe body 8, and a plurality of lateral walls of scraping piece 21 correspond and offset, utilize to be located 16 below spray painting heads and be annular a plurality of pieces 21 of scraping, can realize the complete clearance to 8 surface adhesion impurities of steel pipe body, can avoid epoxy coating spraying to impurity on and the condition of the hourglass of 8 surperficial steel pipe bodies of appearing scribbling, can make 8 spraying effects of steel pipe body better.
The limiting device comprises a vertical groove 22 arranged at the upper end of the inner ring block 17, the inner wall of the vertical groove 22 is connected with a vertical plate 23 in a sliding mode, the side wall of the vertical plate 23 is provided with a placing groove 24, the end part of the sliding block 19 is fixedly provided with a limiting plate 25, the end part of the limiting plate 25 penetrates through the inner wall of the horizontal groove 18 and abuts against the inner wall of the placing groove 24, the limiting plate 25 is a trapezoidal plate, and the placing groove 24 is a trapezoidal groove; the bottom of the vertical plate 23 is fixed with a balancing weight 26, the balancing weight 26 has heavier mass, the vertical plate 23 and a placing groove 24 which is connected with the inclined end surface of the limiting plate 25 can be utilized to realize the limiting of the scraping block 21, thereby ensuring the tight fit of the scraping block 21 and the inner and outer walls of the steel pipe body 8, the bottom of the balancing weight 26 penetrates below the inner ring block 17, the upper end of the inner ring block 17 is fixed with a fixing block 30, the side wall of the vertical plate 23 is provided with a mounting groove 27, the inner wall of the mounting groove 27 is connected with a clamping block 28 in a sliding manner, the side wall of the clamping block 28 is connected with the inner wall of the mounting groove 27 through a reset spring 29, the upper end part of the clamping block 28 is inclined, the side wall of the fixing block 30 is provided with two clamping grooves 31, the two clamping grooves 31 are both corresponding to the clamping block 28, and after the balancing weight 26 is abutted against the upper end of the base 1, the vertical plate 23 can be driven to move upwards, thereby relieving the limiting relation of the limiting plate 25, and leading the scraping block 21 to slightly contact with the inner and the outer part of the steel pipe body 8, can realize slightly wiping the coating of 8 surface spraying of steel pipe body when can not scraping off coating and handle to can realize the even spraying of 8 inside and outside coatings of steel pipe body, make 8 coating spraying effects of steel pipe body better.
In the invention, when epoxy resin is sprayed on a steel pipe for a mine, firstly, a steel pipe body 8 is required to be placed on a support ring 7, at the moment, the rod head of an electric telescopic rod 4 is controlled to drive a horizontal plate 3 to move downwards along a guide rod 2, so that the downward movement of an annular block 11 and a disc 12 can be realized under the drive of a vertical rod 9 and a fixed rod 10 at the bottom of the horizontal plate 3, the annular block 11 is sleeved outside the steel pipe body 8, the disc 12 extends into the steel pipe body 8, under the action of an inner annular block 17 inside the annular block 11, an outer annular block 171 outside the disc 12 and a plurality of arc-shaped scraping blocks 21, the central positions of the steel pipe body 8 and the support ring 7 can be ensured to correspond, and meanwhile, the stable placement of the steel pipe body 8 can be realized by utilizing the plurality of scraping blocks 21 which are respectively abutted against the inner part and the outer part of the steel pipe body 8;
after the paint spraying heads 16 inside the annular block 11 and outside the disc 12 are level with the upper end of the steel pipe body 8, the epoxy resin raw material is continuously pumped into the storage block 5 by controlling the raw material pumping mechanism, under the connecting action of the connecting pipes 13, the epoxy resin can enter the annular block 11 and inside the disc 12, further, the simultaneous spraying of the inside and the outside of the steel pipe body 8 can be realized under the action of the plurality of paint spraying heads 16 which are uniformly distributed in an annular shape, the inside and the outside of the steel pipe body 8 do not need to be repeatedly sprayed by people, the labor consumption can be reduced, the annular block 11 and the disc 12 can be moved downwards simultaneously in the moving process of the electric telescopic rod 4 driving the horizontal plate 3, the complete spraying of the whole inside and the outside of the steel pipe body 8 can be realized by combining the paint spraying heads 16 which are continuously sprayed, the epoxy resin spraying efficiency of the surface of the steel pipe body 8 is higher, and a plurality of spraying devices are arranged at the bottom of the horizontal plate 3, the simultaneous processing of a plurality of steel pipe bodies 8 can be realized, the processing efficiency of epoxy resin spraying on the surfaces of the steel pipe bodies 8 is higher, and the steel pipe bodies 8 can be conveniently processed and used in large batches;
the vertical plate 23 can be ensured to be in a stable state by utilizing the balancing weight 26, so that the limiting of the sliding block 19 and the scraping block 21 can be realized by utilizing the placing groove 24 and the limiting plate 25 which are abutted by the inclined end faces, the scraping block 21 can be ensured to be always tightly attached to the surface of the steel pipe body 8, the scraping block 21 is positioned below the paint spraying head 16, impurities attached to the surface of the steel pipe body 8 can be scraped by utilizing the scraping block 21 abutted against the inner part and the outer part of the steel pipe body 8 in the downward moving process of the annular block 11 and the disc 12, the omission of the spraying of the surface of the steel pipe body 8 caused by the epoxy resin sprayed on the impurities can be avoided, and the spraying effect of the epoxy resin on the surface of the steel pipe body 8 can be better;
after the annular block 11 and the disc 12 reach the bottommost position of the steel pipe body 8, the injection of the epoxy resin raw material in the storage block 5 is stopped, at this time, the counterweight block 26 just abuts against the base 1, in the process that the electric telescopic rod 4 continues to push the horizontal plate 3 to move downwards, the counterweight block 26 can push the vertical plate 23 to move upwards, in the process that the vertical plate 23 moves upwards along the inside of the vertical groove 22, the fixture block 28, which is inclined at the upper end surface and abuts against the inner wall of the lower end clamping groove 31, can move towards the inside of the mounting groove 27 and realize the compression of the return spring 29, when the fixture block 28 reaches the position of the upper end clamping groove 31, the electric telescopic rod 4 is stopped to drive the horizontal plate 3 to move downwards, at this time, under the action of the return spring 29 in a compressed state, the fixture block 28 can enter the inside of the upper end clamping groove 31, and the limitation on the vertical plate 23 and the counterweight block 26 can be realized by the fixture block 28, meanwhile, the limit relation of the limit plate 25 can be relieved, so that the slide block 19 can slide on the inner wall of the horizontal groove 18, the scraping block 21 can be slightly contacted and attached with the inner part and the outer part of the steel pipe body 8, and the scraping block 21 can be prevented from being tightly attached with the inner part and the outer part of the steel pipe body 8;
at the moment, the horizontal plate 3 is pushed to move upwards by the extension of the electric telescopic rod 4, the annular block 11 and the disc 12 can move upwards under the action of the vertical rod 9 and the fixed rod 10, and the epoxy resin paint sprayed on the inner part and the outer part of the steel pipe body 8 can be uniformly wiped by the scraping block 21 which slightly contacts and butts against the inner part and the outer part of the steel pipe body 8, so that the spraying effect of the epoxy resin on the inner part and the outer part of the steel pipe body 8 is better;
after the surface of the steel pipe body 8 is completely wiped, the fixture block 28 is manually pulled to separate the fixture block 28 from the upper end clamping groove 31, then the fixture block 28 is reset under the action of gravity of the counterweight block 26, the vertical plate 23 and the placing groove 24 can be used for resetting the sliding block 19 and the scraping block 21, and accordingly the coating of the next steel pipe body 8 can be conveniently sprayed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A plurality of parallel devices for electrostatic spraying of epoxy resin coating composite steel pipes for underground coal mines comprise a base (1) and are characterized in that a plurality of guide rods (2) are fixed at the upper end of the base (1), the circumferential side walls of the guide rods (2) are connected with a horizontal plate (3) in a sliding mode, a plurality of electric telescopic rods (4) are fixed at the upper end of the base (1), rod heads of the electric telescopic rods (4) are fixed to the bottom of the horizontal plate (3), a plurality of support rings (7) are fixed at the upper end of the base (1), a steel pipe body (8) is abutted to the upper end of each support ring (7), a plurality of spraying devices are arranged at the bottom of the horizontal plate (3), an annular block (11) is sleeved outside each steel pipe body (8), a disc (12) is placed inside each steel pipe body (8), the inner wall of each annular block (11) is fixed with an inner ring block (17), the outer part of each disc (12) is fixed with an outer ring block (171), and a plurality of scraping devices and a plurality of limiting devices are arranged in the inner ring blocks (17) and the outer ring blocks (171) and correspond to the scraping devices one to one.
2. The electrostatic spraying device for multiple parallel branches of the epoxy resin coated composite steel pipe for the underground coal mine according to claim 1, wherein the spraying device comprises a storage block (5) fixed at the upper end of a horizontal plate (3), the interior of the storage block (5) is filled with epoxy resin coating, a material injection pipe (6) is inserted through the top of the storage block (5), a plurality of vertical rods (9) are fixed at the bottom of the horizontal plate (3), and a fixing rod (10) is fixed at the bottom of the horizontal plate (3).
3. The device for electrostatically spraying a plurality of parallel steel pipes with epoxy resin coatings in a coal mine well according to claim 2, wherein the bottoms of the vertical rods (9) are fixed to the upper end of the annular block (11), the bottoms of the fixing rods (10) are fixed to the upper end of the disc (12), a connecting pipe (13) is arranged inside each vertical rod (9) and each fixing rod (10), the upper end of each connecting pipe (13) penetrates into the storage block (5), the bottom of each connecting pipe (13) inside each vertical rod (9) penetrates into the annular block (11), and the bottom of each connecting pipe (13) inside each fixing rod (10) penetrates into the disc (12).
4. The electrostatic spraying multi-branch parallel device for the epoxy resin coating composite steel pipe for the underground coal mine according to claim 3, wherein a plurality of partition plates (14) are fixed inside the annular block (11), the partition plates (14) divide the inside of the annular block (11) into a plurality of storage spaces (15), each storage space (15) corresponds to a plurality of connecting pipes (13) one by one, a plurality of paint spray heads (16) are inserted inside the annular block (11) and outside the disc (12), the paint spray heads (16) are uniformly distributed in an annular shape, and the annular block (11) and the disc (12) are consistent in height.
5. The electrostatic spraying device for multiple parallel branches of the composite steel pipe with the epoxy resin coating for the underground coal mine according to claim 1, wherein the scraping device comprises a horizontal groove (18) arranged on the inner wall of the inner ring block (17), the inner wall of the horizontal groove (18) is connected with a sliding block (19) in a sealing and sliding mode, the side wall of one end of the sliding block (19) is connected with the inner wall of the horizontal groove (18) through a plurality of connecting springs (20), and the side wall of the other end of the sliding block (19) is fixed with a scraping block (21).
6. The electrostatic spraying device for the composite steel pipe with the epoxy resin coating used in the coal mine well is characterized in that the scraping blocks (21) are arc-shaped blocks, the cross section of each scraping block (21) is in a ladder shape, the end parts of the scraping blocks (21) are abutted against the steel pipe body (8), and the side walls of the scraping blocks (21) are correspondingly abutted.
7. The electrostatic spraying device for multiple parallel branches of the composite steel pipe with the epoxy resin coating for the underground coal mine according to claim 6, wherein the limiting device comprises a vertical groove (22) formed in the upper end of the inner ring block (17), a vertical plate (23) is connected to the inner wall of the vertical groove (22) in a sliding mode, a placing groove (24) is formed in the side wall of the vertical plate (23), a limiting plate (25) is fixed to the end portion of the sliding block (19), the end portion of the limiting plate (25) penetrates through the inner wall of the horizontal groove (18) and abuts against the inner wall of the placing groove (24), the limiting plate (25) is a trapezoidal plate, and the placing groove (24) is a trapezoidal groove.
8. The electrostatic spraying device for multiple parallel branches of the epoxy resin coating composite steel pipe for the underground coal mine according to claim 7, wherein a balancing weight (26) is fixed to the bottom of the vertical plate (23), the bottom of the balancing weight (26) penetrates below the inner ring block (17), a fixing block (30) is fixed to the upper end of the inner ring block (17), an installation groove (27) is formed in the side wall of the vertical plate (23), a clamping block (28) is connected to the inner wall of the installation groove (27) in a sliding mode, the side wall of the clamping block (28) is connected with the inner wall of the installation groove (27) through a return spring (29), the upper end of the clamping block (28) is inclined, two clamping grooves (31) are formed in the side wall of the fixing block (30), and the two clamping grooves (31) correspond to the clamping block (28).
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| CN114749293B (en) | 2023-02-10 |
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Denomination of invention: Multiple parallel devices for electrostatic spraying of epoxy resin coated composite steel pipes used underground in coal mines Effective date of registration: 20230828 Granted publication date: 20230210 Pledgee: Weihai commercial bank Limited by Share Ltd. Qingdao branch Pledgor: Qingdao Haode Boer Industrial Co.,Ltd. Registration number: Y2023980054049 |