CN117123399A - Paint spraying device and paint spraying method for casting winding drum - Google Patents
Paint spraying device and paint spraying method for casting winding drum Download PDFInfo
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- CN117123399A CN117123399A CN202311397345.0A CN202311397345A CN117123399A CN 117123399 A CN117123399 A CN 117123399A CN 202311397345 A CN202311397345 A CN 202311397345A CN 117123399 A CN117123399 A CN 117123399A
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- 239000003973 paint Substances 0.000 title claims abstract description 105
- 238000005507 spraying Methods 0.000 title claims abstract description 34
- 238000005266 casting Methods 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims description 77
- 230000000903 blocking effect Effects 0.000 claims description 63
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000010422 painting Methods 0.000 claims description 11
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000007592 spray painting technique Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 description 9
- 238000007789 sealing Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
- B05B13/0228—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts the movement of the objects being rotative
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/40—Filters located upstream of the spraying outlets
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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
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
- B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
-
- 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
Landscapes
- Nozzles (AREA)
Abstract
The invention relates to the technical field of spraying devices, and particularly discloses a casting reel paint spraying device and a paint spraying method. The spray device for the casting winding drum realizes the self-cleaning of the spray nozzle, thereby reducing the labor intensity of operators, ensuring stronger timeliness of the cleaning mode and ensuring the subsequent use of the spray nozzle.
Description
Technical Field
The invention relates to the technical field of spraying devices, in particular to a casting reel paint spraying device and a paint spraying method.
Background
The winding drum is one of key parts of large-scale hoisting equipment, and the winding drum directly bears hoisting load, and the quality of the winding drum has a crucial influence on the hoisting equipment. The paint gun is a tool for spraying paint, is used for surface treatment of products, and is one type of coating equipment. The paint is atomized into fine paint drops by compressed air and sprayed onto the surface of a coated object under the driving of air flow.
Chinese patent with publication number CN207401614U discloses a quick spray gun of paint, including flow regulator, flow regulator's lower extreme passes through the elasticity ware and spouts the barrel and links to each other with the paint pot, and flow regulator's front end is equipped with porous ejection port, and flow regulator's right-hand member is equipped with the trigger, trigger and metal pole swing joint, and the metal pole links as an organic wholely with the rifle body, and the trigger right-hand member is equipped with spouts the width of cloth knob, spouts the width of cloth knob and passes through the rifle body and is connected with porous ejection port, and the metal pole lower extreme is equipped with spraying atmospheric pressure knob. When the quick paint spray gun is used, the metal rod is held by a hand, the trigger is controlled by a finger, paint is conveyed to the porous spray outlet through the gun body to work, the spray efficiency is controlled by the spray amplitude knob and the spray air pressure knob, the flow regulating device is used for controlling the flow of the paint, oil leakage is prevented when the spray gun works, the air spraying net surfing air quantity is uniform, and the spray uniformity is realized.
However, the inventors have found that the following technical drawbacks remain when implementing the paint quick spray gun: after each use, paint remains in the porous ejection port, so that the porous ejection port is blocked by the residual paint, an operator needs to clean the structural part of the porous ejection port in time, however, the number of the holes of the porous ejection port is large and small, the cleaning is difficult, and the labor intensity of the operator is greatly increased; in addition, in actual practice, operators often forget to clean the porous spouts in time due to personal habits or the like, thereby affecting the subsequent use of the porous spouts.
Disclosure of Invention
The invention provides a casting reel paint spraying device, which aims to solve the problems that in the related art, the labor intensity is high when an operator washes a multi-hole spray outlet, and the follow-up use of the multi-hole spray outlet is influenced due to forgetting to timely wash the multi-hole spray outlet.
The invention also provides a spray painting method for the casting winding drum.
The casting drum paint spraying device comprises a gun body, a first barrel, a second barrel, a sliding barrel and a piston, wherein the gun body is provided with a containing cavity, the first barrel and the second barrel are arranged in the containing cavity and are spaced apart along a first direction, a gas storage cavity is formed between the first barrel and the containing cavity, the second barrel is provided with a nozzle and is internally provided with a mixing cavity, the gun body is provided with a main air passage which is respectively communicated with the gas storage cavity and the mixing cavity, the gun body is provided with a paint passage which is communicated with the mixing cavity, the gun body is hinged with a trigger, an elastic piece is connected between the trigger and the gun body, the gun body is provided with a pressure release cavity which is positioned at one side of the gas storage cavity, which is far away from the mixing cavity, a pressure release hole is communicated between the pressure release cavity and the gas storage cavity, the sliding barrel and the first barrel are coaxially arranged, the sliding barrel can slide along the axial direction of the first barrel, the sliding barrel is spaced apart from the first barrel, the sliding barrel is connected with a blocking plate positioned in the pressure release cavity, the trigger and the sliding barrel are connected through a transmission piece so as to control the sliding barrel, the sliding barrel is respectively communicated with the gas storage cavity, the piston is in a ring shape and is sleeved on the second barrel in a sliding way, the piston is used for being connected with the sliding cavity and is in an elastic way, and is connected with the elastic cavity and is communicated with the gas storage cavity and is provided with the sealing vent hole.
Preferably, the casting drum paint spraying device further comprises a telescopic rod and a clamping column, wherein the first cylinder and the second cylinder extend in the first direction, the first cylinder is smaller than the second cylinder in diameter, one end of the second cylinder adjacent to the first cylinder is closed to form a first end wall, the vent hole is formed in the first end wall, and the piston is connected with the blocking piece through the telescopic rod; the perisporium of second barrel is equipped with the intercommunication the mixing chamber with the release hole of smooth chamber, the smooth section of thick bamboo can laminate in the periphery wall of second barrel and shutoff when sliding the release hole, the periphery wall of piston is equipped with the draw-in groove, the first end of card post with the perisporium elastic sliding connection of smooth chamber, the second end of card post is the hemisphere, during the piston slides, the second end of card post can block in the draw-in groove.
Preferably, the transmission piece comprises a push column and a pusher dog, the push column is slidably mounted on the gun body along the first direction, the push column is provided with a first annular table and an annular plate which are spaced apart in the first direction, a buckling groove is formed between the first annular table and the annular plate, the trigger is provided with a buckling part extending into the buckling groove, and when the trigger rotates, the push column is driven to slide through the buckling part and the buckling groove; the blocking plate divides the pressure release cavity into a first cavity and a second cavity, the pressure release hole is communicated with the gas storage cavity and the first cavity, the gun body is provided with an installation port communicated with the second cavity and the outside, the middle part of the pusher dog is rotationally arranged at the installation port, the first end of the pusher dog is contacted with the blocking plate, the pushing column is provided with a limiting surface, and the second end of the pusher dog is contacted with the limiting surface, so that when the trigger is pulled, the pushing column drives the blocking plate to slide through the pusher dog.
Preferably, the casting drum paint spraying device further comprises a first guide block and a second guide block, wherein the peripheral wall of the first cylinder body is provided with a through groove extending along the radial direction of the first guide block, the first guide block is in sliding fit in the through groove and is elastically connected with the peripheral wall of the first cylinder body, the first guide block is provided with a first inclined surface positioned at the inner side of the first cylinder body, and the push column extends into the first cylinder body and corresponds to the first inclined surface; the second guide block is arranged on the blocking piece and is provided with a second inclined plane, and the first guide block is provided with a third inclined plane corresponding to the second inclined plane.
Preferably, the gun body is provided with two gas-dividing passages, one of which is communicated with the main gas passage and the gas storage cavity, and the other of which is arranged on the first cylinder and is communicated with the main gas passage and the mixing cavity.
Preferably, the casting drum paint spraying device further comprises a blocking cover and a sponge block, one end of the second cylinder, which is far away from the first cylinder, is closed and forms a second end wall, the nozzle is arranged on the second end wall, the blocking cover is in a ring shape coaxial with the second cylinder, and the inner wall of the blocking cover is in threaded connection with the gun body; the sponge block is round and coaxially arranged in the blocking cover, and is attached to the outer side of the second end wall of the second cylinder body and used for blocking the nozzle.
Preferably, the second end wall has a conical surface coaxial with the second barrel, the region of the conical surface adjacent the apex thereof forming the spout.
Preferably, the casting reel paint spraying device further comprises a paint kettle and a paint pipe, wherein the paint kettle is positioned below the gun body; the paint pipe is communicated with the paint kettle and the paint channel.
Preferably, the stopper comprises a rubber stopper.
The casting reel paint spraying method of the invention is based on the casting reel paint spraying device, and comprises the following steps:
the trigger is triggered, compressed air enters the mixing cavity through the main air channel, paint enters the mixing cavity through the paint channel, and the compressed air and the paint are mixed in the mixing cavity and sprayed to a winding drum outside through a nozzle;
simultaneously, compressed air enters the air storage cavity through the main air passage;
simultaneously, the trigger drives the sliding cylinder to slide, the sliding cylinder drives the blocking plate to block the pressure relief hole, the sliding cylinder pushes the blocking piece to block the vent hole, and the blocking piece drives the piston to slide;
releasing the trigger, and pushing the blocking plate to open the pressure relief hole by compressed air under the action of air pressure and enabling the compressed air to flow into the pressure relief cavity through the pressure relief hole;
the piston is reset under the action of the elastic force of the piston and the gun body and drives the blocking piece to be pulled out of the vent hole, and meanwhile, the piston impacts the air of the air storage cavity, and the air of the air storage cavity is flushed into the mixing cavity through the vent hole and flushes the residual paint at the nozzle.
By adopting the technical scheme, the invention has the beneficial effects that:
1. when the trigger is triggered, compressed air flows into the mixing cavity through the main air channel, paint flows into the mixing cavity through the paint channel and is mixed with the compressed air, and the mixed paint is sprayed out from the nozzle, so that the spraying of the winding drum is realized. Meanwhile, compressed air of the main air passage also flows into the air storage cavity, and the sliding cylinder pushes the blocking piece to gradually block the vent hole, so that the air storage cavity and the mixing cavity are isolated. The sliding cylinder also drives the blocking plate to gradually block the pressure release hole, so that the air storage cavity and the pressure release cavity are isolated. After the spraying operation is finished, the trigger is loosened, the blocking plate is gradually reset under the air pressure action of the air storage cavity and opens the pressure relief hole, air in the air storage cavity flows into the pressure relief cavity through the pressure relief hole, the air pressure in the air storage cavity is reduced, the elastic force between the piston and the gun body can overcome the air pressure of the air storage cavity, the elastic force drives the piston to reset, the piston drives the blocking piece to be pulled out of the vent hole, meanwhile, the piston impacts the air in the air storage cavity and enables the air to be quickly flushed into the mixing cavity through the vent hole, and the air flushes residual paint at the nozzle, so that the self-cleaning of the nozzle is realized, the process of manually cleaning the nozzle by an operator is avoided, the workload of the operator is greatly reduced, and the labor intensity of the operator is reduced. In addition, compared with manual work, the self-cleaning of the nozzle is stronger in timeliness, and the subsequent use of the nozzle is ensured. In addition, the above process is also called passive cleaning process of the nozzle.
2. The design of draw-in groove and draw-in post for the draw-in groove of piston breaks away from behind the draw-in post under the elastic force effect, the piston is no longer received the constraint of draw-in post, and the elastic force that acts on the piston will be greater than the atmospheric pressure of gas storage chamber far away, and from this the piston is bigger to the impact force of the air of gas storage chamber, and the air of gas storage chamber dashes into the speed of mixing chamber faster, and then has promoted the impact effect to the residual paint in spout department.
3. When the clamping column is clamped in the clamping groove, the length of the telescopic rod is pulled to the limit. At this time, when the trigger is pushed outwards, the trigger drives the pushing column to move left, the pushing column presses the first guide block to slide towards the outer side of the first cylinder body through the first inclined plane, and then the first guide block forces the second guide block to move right through the third inclined plane, and the second guide block drives the blocking piece to move right, so that the blocking piece is pulled out from the vent hole. Because the telescopic rod is at the maximum length at this moment, the blocking piece drives the piston to move right through the telescopic rod and enables the clamping groove of the piston to be separated from the clamping column. In the process of separating the piston from the clamping column, the piston receives the elastic force of the first spring on one hand, and receives the driving force transmitted by a hand through the trigger on the other hand, so that the impact force of the piston on the air in the air storage cavity is larger, and the self-cleaning effect of the nozzle is further improved.
Drawings
Fig. 1 is a schematic perspective view of a casting roll painting apparatus of the present invention.
Fig. 2 is a schematic perspective view of the gun body to paint kettle portion of the present invention.
FIG. 3 is a schematic cross-sectional view of the gun body to paint kettle portion of the present invention.
Fig. 4 is an enlarged schematic view of the present invention at a in fig. 3.
Fig. 5 is a schematic cross-sectional view of a second barrel of the present invention.
FIG. 6 is a schematic view of the gun body to second barrel portion structure of the present invention.
Fig. 7 is a perspective view of the slide to closure portion of the present invention.
Fig. 8 is a perspective view of the first guide block to the fourth spring portion of the present invention.
Fig. 9 is a schematic view of the telescopic rod to blanking portion of the present invention.
Fig. 10 is a schematic view of the structure of the main air duct to two split air duct portions of the present invention.
Fig. 11 is a schematic view of the structure of the paint lane to second barrel portion of the present invention.
Reference numerals:
1. a frame; 11. a reel;
2. a gun body; 21. a receiving chamber; 211. a first cylinder; 2111. a first guide block; 2112. a first inclined surface; 2113. a third inclined surface; 2114. a fourth spring; 212. a second cylinder; 2121. a first end wall; 2122. a vent hole; 2123. a vent hole; 2124. a second end wall; 2125. a spout; 2126. a conical surface; 213. a gas storage chamber; 214. a mixing chamber; 215. a sliding cavity; 2151. a first spring; 2152. a clamping column; 22. a main air passage; 23. a paint path; 24. a trigger; 241. a third spring; 25. a pressure relief cavity; 251. a pressure relief hole; 252. a first chamber; 253. a second chamber; 2531. a mounting port; 2532. a pusher dog; 26. a gas dividing channel; 27. a convex ring;
3. a slide cylinder; 31. a closure plate; 32. a connecting plate;
4. a piston; 41. a clamping groove;
5. a blocking piece; 51. a second guide block; 511. a second inclined surface;
6. a telescopic rod; 61. a sleeve; 62. a slide bar; 63. a connecting plate;
7. pushing a column; 71. a first ring table; 72. a ring plate; 73. a buckling groove; 74. a second ring table;
8. a blanking cover; 81. a sponge block;
9. a paint kettle; 91. and (5) a paint pipe.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The casting roll painting apparatus and the painting method of the present invention will be described below with reference to fig. 1 to 11.
As shown in fig. 1, 2, 3, 4, 5, 6, 7 and 11, the cast drum paint spraying apparatus of the present invention, in example 1, includes a gun body 2, a first cylinder 211 and a second cylinder 212, a slide cylinder 3 and a piston 4, the gun body 2 having a receiving chamber 21, the first cylinder 211 and the second cylinder 212 being disposed in the receiving chamber 21 and being spaced apart in a first direction, a gas storage chamber 213 being formed between the first cylinder 211 and the receiving chamber 21, the second cylinder 212 having a nozzle 2125 and forming a mixing chamber 214 therein, the gun body 2 having a main gas passage 22 communicating with the gas storage chamber 213 and the mixing chamber 214, respectively, the gun body 2 having a paint passage 23 communicating with the mixing chamber 214, the gun body 2 being hinged with a trigger 24, an elastic member being connected between the trigger 24 and the gun body 2, the trigger 24 being used for controlling the intake of the main gas passage 22. The gun body 2 is provided with a pressure release cavity 25 positioned at one side of the air storage cavity 213, which is far away from the mixing cavity 214, a pressure release hole 251 is communicated between the pressure release cavity 25 and the air storage cavity 213, the sliding cylinder 3 and the first cylinder 211 are coaxially arranged, the sliding cylinder 3 can slide along the axial direction of the first cylinder 211, the sliding cylinder 3 is spaced apart from the first cylinder 211, the sliding cylinder 3 is connected with a blocking plate 31 positioned in the pressure release cavity 25, when the sliding cylinder 3 slides, the blocking plate 31 can block the pressure release hole 251, and the trigger 24 and the sliding cylinder 3 are connected through a transmission piece so as to control the sliding cylinder 3 to slide. A sliding cavity 215 is formed between the second cylinder 212 and the accommodating cavity 21, the piston 4 is annular and is sleeved on the second cylinder 212 in a sliding manner, the piston 4 is used for sealing the sliding cavity 215 and is elastically connected with the gun body 2, a vent hole 2122 is communicated between the mixing cavity 214 and the gas storage cavity 213, the piston 4 is provided with a sealing piece 5 used for sealing the vent hole 2122 and contacting with the sliding cylinder 3, and when the sliding cylinder 3 slides, the sealing piece 5 can be pushed to seal the vent hole 2122.
For ease of understanding, the first direction is set to be the left-right direction.
When the trigger 24 is pulled, the external air source supplies compressed air into the main air channel 22, the compressed air flows along the main air channel 22 to the mixing cavity 214 and the air storage cavity 213 respectively under the action of power, when a part of compressed air flows into the mixing cavity 214, the flowing compressed air forms a low pressure area in the mixing cavity 214, so that a pressure difference is generated between the compressed air and paint in the paint channel 23, the paint is injected into the mixing cavity 214 through the paint channel 23 and is mixed with the compressed air under the action of the pressure difference, so that pressurized paint is formed, the pressurized paint is sprayed out from the spray nozzle 2125, the spraying of the winding drum 11 is realized, and the spraying operation of the paint is realized.
At the same time, another part of the compressed air flowing in the main air passage 22 flows into the air storage cavity 213, the sliding cylinder 3 moves leftwards under the action of the trigger and pushes the blocking piece 5 to gradually block the air vent 2122, so that the air storage cavity 213 and the mixing cavity 214 are isolated, the blocking piece 5 drives the piston 4 to move leftwards during sliding, and the elastic force between the piston 4 and the gun body 2 is gradually increased. In addition, the sliding cylinder 3 drives the blocking plate 31 to gradually block the pressure release hole 251, so that the air storage cavity 213 and the pressure release cavity 25 are isolated, and the air storage cavity 213 is completely closed.
After the spraying operation is finished, the trigger 24 is loosened, compressed air and paint do not enter the gun body 2 any more, at this time, the blocking plate 31 is gradually reset and opens the pressure release hole 251 under the action of the air pressure of the air storage cavity 213, the air of the air storage cavity 213 flows into the pressure release cavity 25 through the pressure release hole 251, thereby realizing the pressure release of the air storage cavity 213, the air pressure in the air storage cavity 213 is reduced, the elastic force between the piston 4 and the gun body 2 overcomes the air pressure of the air storage cavity 213, the elastic force drives the piston 4 to reset, the piston 4 drives the blocking piece 5 to be pulled out from the vent 2122, meanwhile, the air of the air storage cavity 213 is quickly flushed into the mixing cavity 214 through the vent 2122 under the action of the impact force of the piston 4 and the pressure of the air, and the air is flushed down the residual paint at the nozzle 2125 through the mixing cavity 214, thereby realizing the self-cleaning of the nozzle 2125, thereby avoiding the process of manually cleaning the nozzle 2125 by an operator, the work load of the operator is greatly reduced, and the labor intensity of the operator is reduced. In addition, the self-cleaning of the jet 2125 is more timely than manual, ensuring subsequent use of the jet 2125. In addition, the above process is also referred to as a passive cleaning process of the nozzle 2125.
It should be noted that, the gun body 2 may be slidably mounted on the external frame 1 along the front-rear direction, and the roller 11 on the frame 1 is painted by sliding on the frame 1, it is understood that the roller 11 may be driven to rotate on the frame 1 by a motor, so as to facilitate the painting of the gun body 2. The gun body 2 can also be detached from the frame 1 for independent use.
It will be appreciated that the gas storage chamber 213 is formed between the outer peripheral wall of the first cylinder 211 and the accommodation chamber 21.
It will be appreciated that the main air passage 22 is externally connected with an air pressure device, which may be a pressure tank, a pressure barrel, a pump or an air pump, etc., and further, the implementation of the trigger 24 for controlling the air intake of the main air passage 22 is a conventional technology in the art, and will not be described herein.
It will be appreciated that the slide cylinder 3 and the first cylinder 211 are coaxial and radially spaced from each other.
Specifically, the end of the sliding cylinder 3, which is close to the pressure release cavity 25, is provided with a connecting plate 32, a channel for the connecting plate 32 to pass through is communicated between the gas storage cavity 213 and the pressure release cavity 25, the connecting plate 32 slides through the channel and stretches into the pressure release cavity 25, the part of the connecting plate 32 located in the pressure release cavity 25 is fixedly connected with the blocking plate 31, and it can be understood that the connecting plate 32 and the channel slide in a sealing way, so that the gas storage cavity 213 is prevented from leaking gas to the pressure release cavity 25 through the channel.
Specifically, a slide chamber 215 is formed between the outer peripheral wall of the second cylinder 212 and the accommodation chamber 21.
Specifically, the housing chamber 21 is substantially cylindrical extending in the left-right direction, an inner peripheral wall of the piston 4 is in sealing sliding contact with an outer peripheral wall of the second cylinder 212, an outer peripheral wall of the piston 4 is in sealing sliding contact with a peripheral wall of the housing chamber 21, and a first spring 2151 located in the slide chamber 215 is connected between the piston 4 and the gun body 2.
It will be appreciated that the main air passage 22 is provided with a one-way valve for one-way air intake from the main air passage 22 into the gun body 2, so as to prevent air in the air storage cavity 213 and the mixing cavity 214 from flowing back through the main air passage 22.
Specifically, the elastic member includes a third spring 241.
It should be noted that, the axis of the vent 2122 extends obliquely from front to back, so that the air in the air storage chamber 213 enters the mixing chamber 214 in a cutting manner along the extending direction of the vent 2122 when rushing into the mixing chamber 214, thereby enhancing the impact effect in the mixing chamber 214.
Wherein the plurality of air leakage holes 2123 are equally spaced in the circumferential direction of the second cylinder 212.
When the gun body 2 is detached from the frame 1 and cleaned across the workpieces, the trigger 24 is loosened at the gap between the two workpieces, so that paint is prevented from being sprayed out to waste materials, and the nozzle 2125 does not need to be cleaned to avoid waste of materials. Thus, to avoid that the spout 2125 begins to self-clean when the trigger 24 is temporarily released, embodiment 2 is also provided.
With continued reference to fig. 4, embodiment 2, on the basis of embodiment 1, the casting drum paint spraying apparatus further includes a telescopic rod 6 and a clamping column 2152, the first cylinder 211 and the second cylinder 212 each extend in a first direction, the first cylinder 211 is smaller than the diameter of the second cylinder 212, one end of the second cylinder 212 adjacent to the first cylinder 211 is closed and forms a first end wall 2121, a vent 2122 is provided at the first end wall 2121, and the piston 4 is connected to the stopper 5 through the telescopic rod 6. The perisporium of second barrel 212 is equipped with the bleeder hole 2123 that feeds through mixing chamber 214 and smooth chamber 215, can laminate in the periphery wall of second barrel 212 and shutoff bleeder hole 2123 when smooth barrel 3 slides, and the periphery wall of piston 4 is equipped with draw-in groove 41, and the first end of draw-in column 2152 and the perisporium elasticity sliding connection of smooth chamber 215, the second end of draw-in column 2152 are the hemisphere, and when piston 4 slides, the second end of draw-in column 2152 can block in draw-in groove 41.
In the initial state, the telescopic rod 6 is in the shortest state, when the sliding cylinder 3 pushes the plug 5 to slide, the sliding cylinder 3 also gradually closes the pressure release hole 2123, the plug 5 pushes the piston 4 to move left through the telescopic rod 6, when the plug 5 is plugged into the air vent 2122, the piston 4 temporarily stops moving left, and at the moment, the plug plate 31 already seals the pressure release hole 251. The air storage chamber 213 forms a closed space, the air storage chamber 213 still receives the air supplied by the main air passage 22, the air pressure of the air acts on the piston 4, the piston 4 is driven to move left, the telescopic rod 6 is gradually lengthened to compensate the left movement of the piston 4, and when the clamping groove 41 of the piston 4 moves to a position opposite to the clamping post 2152, the clamping post 2152 is clamped into the clamping groove 41 under the action of the elastic force of the clamping post and the peripheral wall of the sliding chamber 215, so that the temporary locking of the piston 4 is realized.
When the spraying operation is completed, the trigger 24 is released, the main air passage 22 does not supply air, the air pressure in the air storage cavity 213 drives the blocking plate 31 to open the pressure release hole 251, so as to release pressure, in the process, the blocking plate 31 drives the sliding cylinder 3 to gradually move right, the sliding cylinder 3 is gradually staggered with the pressure release hole 2123, it should be noted that, in the initial stage of right movement of the sliding cylinder 3, the sliding cylinder 3 is not directly separated from the pressure release hole 2123, in other words, the sliding cylinder 3 still keeps the state of blocking the pressure release hole 2123, at this time, the air pressure in the air storage cavity 213 is reduced under the action of the pressure release cavity 25, but the reduction degree and the reduction rate of the air pressure are limited, so that the elastic force acting on the piston 4 is difficult to overcome the limitation of the air pressure of the air storage cavity 213 and the blocking post 2152, and the piston 4 cannot be reset. After the sliding cylinder 3 moves rightwards for a period of time, the left end of the sliding cylinder 3 is gradually separated from the air release hole 2123, at this time, the air release hole 2123 is opened, air in the air storage cavity 213 can flow into the mixing cavity 214 through the sliding cavity 215, so that the mixing cavity 214 serves as a pressure release space of the air storage cavity 213, the pressure release speed of the air storage cavity 213 is improved, and when the air pressure of the air storage cavity 213 is reduced to a set value, the elastic force of the first spring 2151 acting on the piston 4 can overcome the air pressure of the air storage cavity 213 and the limit of the clamping column 2152, and the piston 4 moves rightwards and resets under the action of the elastic force. The piston 4 drives the catch 41 and the catch 2152 to disengage. After the clamping groove 41 and the clamping column 2152 are completely separated, the elastic force acting on the piston 4 is far greater than the air pressure of the air storage cavity 213 because the piston 4 is not limited by the clamping column 2152, so that the impact force of the piston 4 on the air of the air storage cavity 213 is greater, the speed of the air storage cavity 213 rushing into the mixing cavity 214 is faster, and the impact effect on the residual paint at the nozzle 2125 is further improved.
From the above, after the trigger 24 is released, the nozzle 2125 cannot be self-cleaned at the initial stage of the staggering of the slide 3 and the air release hole 2123, the gun body 2 can span two workpieces at this stage, the flushing of residual paint at the nozzle 2125 can be avoided during the span, and the next workpiece can be sprayed by pulling the trigger 24 again when the gun body 2 spans to the next workpiece. This design allows for a delay in the release of trigger 24 and cleaning of jet 2125 in terms of time and time just enough to meet the need to span the work pieces, avoiding the phenomenon of jet 2125 self-cleaning and thus wasting paint while spanning two work pieces.
Specifically, the first cylinder 211 is located on the right side of the second cylinder 212 and is coaxial with the first cylinder 211.
Specifically, the telescopic rod 6 includes a sleeve 61 and a slide bar 62 extending in the left-right direction, the left end of the sleeve 61 is fixedly connected with the piston 4, the slide bar 62 is slidably fitted in the sleeve 61, the right end of the sleeve 61 is provided with an annular first limit flange located on the inner side, the left end of the slide bar 62 is provided with an annular second limit flange, when the telescopic rod 6 is in the longest state, the first limit flange and the second limit flange are abutted against each other, and the first limit flange and the second limit flange limit the continuous elongation of the telescopic rod 6. The right end of the slide bar 62 is provided with a connecting plate 63 for connecting the plug 5.
Specifically, the inner diameter of the slide cylinder 3 and the outer diameter of the second cylinder 212 are substantially equal.
It should be noted that, the clamping column 2152 and the clamping groove 41 extend along the radial direction of the second cylinder 212, the peripheral wall of the sliding cavity 215 is provided with a receiving groove extending along the radial direction of the second cylinder 212, and the clamping column 2152 is slidably engaged in the receiving groove and connected with the gun body 2 by a second spring located in the receiving groove. In the initial state, the clip 2152 is located on the left side of the piston 4.
It will be appreciated that the hemispherical structure of the second end of the clamping post 2152 facilitates the sliding of the clamping post 2152 by the hemispherical structure when the piston 4 moves left, and that the clamping post 2152 is limited in definition of the clamping slot 41 when the second end of the clamping post 2152 is clamped into the clamping slot 41, and is not fully defined, and that the piston 4 slides and drives the clamping slot 41 to separate from the clamping post 2152 when the elastic force of the first spring 2151 acting on the piston 4 overcomes the limit of the clamping slot 41 by the clamping post 2152.
It should be noted that, the plurality of clamping grooves 41 are equally spaced in the circumferential direction of the second cylinder 212, and the accommodating grooves, the second springs and the clamping columns 2152 form clamping assemblies, the number of the clamping assemblies and the number of the clamping grooves 41 are equal and correspond to each other one by one, and the clamping assemblies and the corresponding clamping grooves 41 are mutually matched.
The stopper 5 and the telescopic rod 6 constitute a plurality of stopper units which are equally spaced in the circumferential direction of the second cylinder 212.
With continued reference to fig. 3 and 4, further, the transmission member includes a push post 7 and a finger 2532, the push post 7 is slidably mounted on the gun body 2 along a first direction, the push post 7 has a first annular table 71 and an annular plate 72 spaced apart in the first direction, a buckling groove 73 is formed between the first annular table 71 and the annular plate 72, the trigger 24 has a buckling portion extending into the buckling groove 73, and when the trigger 24 rotates, the push post 7 is driven to slide by the buckling portion and the buckling groove 73. The closure plate 31 separates the pressure release cavity 25 into a first cavity 252 and a second cavity 253, the pressure release hole 251 is communicated with the air storage cavity 213 and the first cavity 252, the gun body 2 is provided with a mounting opening 2531 which is communicated with the second cavity 253 and the outside, the middle part of the pulling claw 2532 is rotatably arranged at the mounting opening 2531, the first end of the pulling claw 2532 is contacted with the closure plate 31, the pushing column 7 is provided with a limiting surface, the second end of the pulling claw 2532 is contacted with the limiting surface, and when the trigger 24 is pulled, the pushing column 7 drives the closure plate 31 to slide through the pulling claw 2532.
When the trigger 24 is pulled, the push column 7 is driven to move right by the buckling part and the buckling groove 73, the push column 7 drives the pusher dog 2532 to deflect by the limiting surface, the first end of the pusher dog 2532 pushes the blocking plate 31 to move left, and the blocking plate 31 drives the sliding cylinder 3 to move left by the connecting plate 32.
Specifically, the push posts 7 extend in the left-right direction, and it is understood that the engagement grooves 73 are annular.
Specifically, the first cavity 252 is located to the left of the second cavity 253 and the finger 2532 is located to the right of the closure plate 31.
Specifically, the push column 7 is provided with a second annular table 74 positioned on the left side of the finger 2532, and the right end surface of the second annular table 74 forms a limiting surface.
It should be noted that, the pressure relief cavities 25 are plural and equally spaced in the circumferential direction of the first cylinder 211, the connecting plates 32 and the blocking plates 31 are equal to the number of the pressure relief cavities 25 and correspond to each other one by one, and the connecting plates 32 and the blocking plates 31 are located in the corresponding pressure relief cavities 25. A pressure relief hole 251 is communicated between each pressure relief cavity 25 and the gas storage cavity 213.
With continued reference to fig. 4, 8 and 9, further, the casting roll paint spraying apparatus further includes a first guide block 2111 and a second guide block 51, wherein a circumferential wall of the first cylinder 211 is provided with a through groove extending radially therefrom, the first guide block 2111 is slidably fitted in the through groove and elastically coupled to the circumferential wall of the first cylinder 211, the first guide block 2111 has a first inclined surface 2112 located inside the first cylinder 211, and the push post 7 extends into the first cylinder 211 and corresponds to the first inclined surface 2112. The second guide block 51 is provided on the blocking member 5, the second guide block 51 has a second inclined surface 511, and the first guide block 2111 has a third inclined surface 2113 corresponding to the second inclined surface 511.
When the clip column 2152 is engaged with the clip groove 41, the length of the telescopic link 6 is pulled to the limit. At this time, when the trigger 24 is pushed outwards, the trigger 24 drives the pushing post 7 to move left through the buckling part and the buckling groove 73, the pushing post 7 gradually presses against the first inclined plane 2112, the first guide block 2111 is pressed by the first inclined plane 2112 to slide towards the outer side of the first cylinder 211, then the second inclined plane 511 and the third inclined plane 2113 of the first guide block 2111 are attached, the second guide block 51 is forced to move right through the third inclined plane 2113, and the second guide block 51 drives the plug 5 to move right, so that the plug 5 is pulled out from the vent hole 2122. The blocking piece 5 drives the sliding rod 62 to move right, and since the telescopic rod 6 is at the maximum length at this time, the sliding rod 62 directly drives the sleeve 61 to slide through the first limit flange and the second limit flange, and the sleeve 61 drives the piston 4 to move right and separates the clamping groove 41 of the piston 4 from the clamping column 2152. In the process of separating the piston 4 from the clamping column 2152, the piston 4 receives the elastic force of the first spring 2151 on one hand, and receives the driving force transmitted by the hand through the trigger 24 on the other hand, so that the impact force of the piston 4 on the air in the air storage cavity 213 is larger, and the self-cleaning effect of the nozzle 2125 is further improved. In addition, this implementation enables active cleaning of the jet 2125.
Specifically, the second guide block 51 is provided to the connection plate 63, whereby the second guide block 51 achieves the effect of connection with the blocking member 5 through the connection plate 63.
Specifically, the second guide blocks 51 and the blocking members 5 are equal in number and correspond one to one, and the second guide blocks 51 are connected to the connection plates 63 of the respective blocking members 5.
Wherein, the first guide blocks 2111 are a plurality of and equally spaced in the circumferential direction of the first cylinder 211, the plurality of first guide blocks 2111 and the plurality of second guide blocks 51 are in one-to-one correspondence, and the third inclined surface 2113 of the first guide block 2111 is matched with the second inclined surface 511 of the corresponding second guide block 51.
Wherein, a fourth spring 2114 is connected to the first guide block 2111 and the peripheral wall of the first cylinder 211, and the fourth spring 2114 is used for resetting the first guide block 2111.
With continued reference to fig. 4, 5, 6 and 10, further, the gun body 2 is provided with two gas-dividing passages 26, wherein one gas-dividing passage 26 is communicated with the main gas passage 22 and the gas storage cavity 213, and the other gas-dividing passage 26 is arranged on the first cylinder 211 and is communicated with the main gas passage 22 and the mixing cavity 214.
The two gas-dividing passages 26 are respectively used for introducing the compressed air in the main gas passage 22 into the gas storage chamber 213 and the mixing chamber 214.
With continued reference to fig. 2-5, further, the casting roll paint spraying apparatus further includes a blocking cover 8 and a sponge block 81, wherein an end of the second cylinder 212 facing away from the first cylinder 211 is closed and forms a second end wall 2124, a nozzle 2125 is provided on the second end wall 2124, and the blocking cover 8 is annular and coaxial with the second cylinder 212 and has an inner wall in threaded connection with the gun body 2. The sponge block 81 is circular and coaxially arranged in the blocking cover 8, and the sponge block 81 is attached to the outer side of the second end wall 2124 of the second cylinder 212 and is used for blocking the nozzle 2125.
When the nozzle 2125 is cleaned, air in the air storage cavity 213 rushes into the mixing cavity 214 and continues to rush towards the nozzle 2125, and under the impact of the air, residual paint on the nozzle 2125 is rushed down and brought onto the sponge block 81, and the air is discharged outwards through the sponge block 81. The sponge piece 81 is used for receiving residual paint on the one hand, avoids the residual paint to be discharged outwards and influences the environment, and on the other hand, when the gun body 2 is kept stand, the sponge piece 81 also reduces the outside air from entering the nozzle 2125, and further avoids the phenomenon of paint dry cracking.
Specifically, the gun body 2 is provided with a convex ring 27 sleeved on the first cylinder 211, the convex ring 27 is fixedly connected with the first cylinder 211, the blanking cover 8 is sleeved on the convex ring 27, the inner peripheral wall of the blanking cover 8 is provided with internal threads, and the outer peripheral wall of the convex ring 27 is provided with external threads which are matched with each other.
Specifically, the jet 2125 is centrally disposed in the second end wall 2124.
With continued reference to fig. 4 and 5, further, the second end wall 2124 has a tapered surface 2126 coaxial with the second barrel 212, the region of the tapered surface 2126 adjacent to its apex forming a spout 2125.
The conical surface 2126 is used for guiding compressed air, so that the compressed air can conveniently carry paint to spray outwards, and on the other hand, in the cleaning stage of the nozzle 2125, the conical surface 2126 can conveniently guide air to the nozzle 2125, convergence in the area of the nozzle 2125 is achieved, and then impact effect on the nozzle 2125 is enhanced.
Specifically, the jet 2125 is porous.
It will be appreciated that the apex of the tapered surface 2126 faces to the left.
With continued reference to fig. 2, 3 and 11, further, the casting roll painting apparatus further includes a paint kettle 9 and a paint pipe 91, the paint kettle 9 being located below the gun body 2. The paint pipe 91 communicates the paint kettle 9 with the paint channel 23.
The paint kettle 9 is used for storing paint, and the paint pipe 91 is used for guiding paint in the paint kettle 9 into the paint channel 23. In addition, the paint pipe 91 is also used to connect the paint kettle 9 and the gun body 2 together.
Further, the stopper 5 includes a rubber stopper.
The rubber stopper achieves good blocking and sealing effects on the vent 2122.
The casting roll paint spraying method of the invention, based on the casting roll paint spraying device in the embodiment, comprises the following steps:
the trigger 24 is actuated, compressed air enters the mixing chamber 214 through the main air passage 22, paint enters the mixing chamber 214 through the paint passage 23, and the compressed air and paint mix in the mixing chamber 214 and are sprayed through the spray nozzle 2125 onto the outside spool 11.
At the same time, compressed air enters the air storage chamber 213 through the main air passage 22.
Simultaneously, the trigger 24 drives the sliding cylinder 3 to slide, the sliding cylinder 3 drives the blocking plate 31 to block the pressure release hole 251, the sliding cylinder 3 pushes the blocking piece 5 to block the vent 2122, and the blocking piece 5 drives the piston 4 to slide.
Releasing trigger 24, compressed air under pneumatic pressure pushes closure plate 31 to open relief aperture 251 and flow from relief aperture 251 into relief cavity 25.
The piston 4 is reset under the action of the elastic force of the piston 4 and the gun body 2 and drives the plug 5 to be pulled out from the vent hole 2122, meanwhile, the piston 4 impacts the air in the air storage cavity 213, and the air in the air storage cavity 213 is flushed into the mixing cavity 214 through the vent hole 2122 and flushes the residual paint at the nozzle 2125.
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.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The utility model provides a casting reel paint spraying apparatus, includes rifle body (2), its characterized in that still includes:
the gun comprises a first barrel (211) and a second barrel (212), wherein the gun body (2) is provided with a containing cavity (21), the first barrel (211) and the second barrel (212) are arranged in the containing cavity (21) and are spaced apart along a first direction, an air storage cavity (213) is formed between the first barrel (211) and the containing cavity (21), the second barrel (212) is provided with a nozzle (2125) and internally forms a mixing cavity (214), the gun body (2) is provided with a main air passage (22) which is respectively communicated with the air storage cavity (213) and the mixing cavity (214), the gun body (2) is provided with a paint passage (23) which is communicated with the mixing cavity (214), the gun body (2) is hinged with a trigger (24), and an elastic piece is connected between the trigger (24) and the gun body (2);
the gun body (2) is provided with a pressure release cavity (25) positioned at one side of the air storage cavity (213) away from the mixing cavity (214), a pressure release hole (251) is communicated between the pressure release cavity (25) and the air storage cavity (213), the slide cylinder (3) and the first cylinder (211) are coaxially arranged, the slide cylinder (3) can slide along the axial direction of the first cylinder (211), the slide cylinder (3) is spaced apart from the first cylinder (211), the slide cylinder (3) is connected with a pressure release plate (31) positioned in the pressure release cavity (25), and the trigger (24) and the slide cylinder (3) are connected through a transmission piece so as to control the slide cylinder (3) to slide;
the piston (4), constitute sliding chamber (215) between second barrel (212) and the chamber (21) that holds, piston (4) are annular and slip cap locate second barrel (212), piston (4) are used for shutoff sliding chamber (215) and with rifle body (2) elastic connection, communicate between mixing chamber (214) and gas storage chamber (213) has air vent (2122), piston (4) are equipped with be used for shutoff air vent (2122) and with the stifled piece (5) of sliding barrel (3) contact.
2. The casting roll painting device of claim 1, further comprising:
the telescopic rod (6), the first cylinder body (211) and the second cylinder body (212) extend in the first direction, the first cylinder body (211) is smaller than the diameter of the second cylinder body (212), one end, adjacent to the first cylinder body (211), of the second cylinder body (212) is closed to form a first end wall (2121), the vent hole (2122) is formed in the first end wall (2121), and the piston (4) is connected with the blocking piece (5) through the telescopic rod (6);
the clamping column (2152), the perisporium of second barrel (212) is equipped with the intercommunication mixing chamber (214) with the release hole (2123) of smooth chamber (215), slide barrel (3) during slip can laminate in the periphery wall of second barrel (212) and shutoff release hole (2123), the periphery wall of piston (4) is equipped with draw-in groove (41), the first end of clamping column (2152) with the perisporium elasticity sliding connection of smooth chamber (215), the second end of clamping column (2152) is the hemisphere, when piston (4) are slided, the second end of clamping column (2152) can block in draw-in groove (41).
3. The casting roll painting device of claim 1, wherein the transmission comprises:
a push column (7), wherein the push column (7) is slidably mounted on the gun body (2) along the first direction, the push column (7) is provided with a first annular table (71) and an annular plate (72) which are spaced apart in the first direction, a buckling groove (73) is formed between the first annular table (71) and the annular plate (72), the trigger (24) is provided with a buckling part which stretches into the buckling groove (73), and when the trigger (24) rotates, the push column (7) is driven to slide through the buckling part and the buckling groove (73);
the device comprises a pulling claw (2532), wherein the pulling claw (2532) is used for separating the pressure release cavity (25) into a first cavity (252) and a second cavity (253), the pressure release hole (251) is communicated with the gas storage cavity (213) and the first cavity (252), the gun body (2) is provided with an installation opening (2531) communicated with the second cavity (253) and the outside, the middle part of the pulling claw (2532) is rotationally arranged at the installation opening (2531), the first end of the pulling claw (2532) is in contact with the blocking plate (31), the pushing post (7) is provided with a limiting surface, and the second end of the pulling claw (2532) is in contact with the limiting surface, so that when the trigger (24) is buckled, the pushing post (7) drives the blocking plate (31) to slide through the pulling claw (2532).
4. The casting roll painting device of claim 3, further comprising:
a first guide block (2111), wherein the peripheral wall of the first cylinder (211) is provided with a through groove extending along the radial direction of the first cylinder, the first guide block (2111) is in sliding fit in the through groove and is elastically connected with the peripheral wall of the first cylinder (211), the first guide block (2111) is provided with a first inclined surface (2112) positioned at the inner side of the first cylinder (211), and the pushing post (7) extends into the first cylinder (211) and corresponds to the first inclined surface (2112);
the second guide block (51), the second guide block (51) is located stifled piece (5), second guide block (51) have second inclined plane (511), first guide block (2111) have with second inclined plane (511) corresponding third inclined plane (2113).
5. Casting drum spray device according to claim 1, characterized in that the gun body (2) is provided with two gas-dividing channels (26), one of which gas-dividing channels (26) communicates with the main gas channel (22) and the gas storage chamber (213), and the other gas-dividing channel (26) is provided in the first cylinder (211) and communicates with the main gas channel (22) and the mixing chamber (214).
6. The casting roll painting device of claim 2, further comprising:
the end, away from the first cylinder (211), of the second cylinder (212) is closed and forms a second end wall (2124), the nozzle (2125) is arranged on the second end wall (2124), and the blocking cover (8) is annular coaxial with the second cylinder (212) and is in threaded connection with the gun body (2);
the sponge block (81), the sponge block (81) is circular and coaxially arranged in the blanking cover (8), and the sponge block (81) is attached to the outer side of the second end wall (2124) of the second cylinder (212) and used for blocking the nozzle (2125).
7. The casting roll painting device according to claim 6, characterized in that the second end wall (2124) has a conical surface (2126) coaxial with the second cylinder (212), the region of the conical surface (2126) adjacent to its apex forming the spout (2125).
8. The casting roll painting device of claim 1, further comprising:
a paint kettle (9), wherein the paint kettle (9) is positioned below the gun body (2);
-a paint pipe (91), said paint pipe (91) communicating said paint kettle (9) with said paint channel (23).
9. Casting drum spray device according to claim 1, characterized in that the stopper (5) comprises a rubber stopper.
10. A method of spray-painting a casting reel, characterized by the fact that it is based on the casting reel spray-painting device according to claim 1, comprising the following steps:
pulling a trigger (24), compressed air enters a mixing cavity (214) through a main air passage (22), paint enters the mixing cavity (214) through a paint passage (23), and the compressed air and the paint are mixed in the mixing cavity (214) and are sprayed to an external winding drum (11) through a nozzle (2125);
simultaneously, compressed air enters the air storage cavity (213) through the main air passage (22);
simultaneously, the trigger (24) drives the sliding cylinder (3) to slide, the sliding cylinder (3) drives the blocking plate (31) to block the pressure release hole (251), the sliding cylinder (3) pushes the blocking piece (5) to block the vent hole (2122), and the blocking piece (5) drives the piston (4) to slide;
releasing the trigger (24), and pushing the blocking plate (31) to open the pressure relief hole (251) under the action of air pressure and enabling compressed air to flow into the pressure relief cavity (25) through the pressure relief hole (251);
the piston (4) is reset under the action of the elastic force of the piston and the gun body (2) and drives the blocking piece (5) to be pulled out from the vent hole (2122), meanwhile, the piston (4) impacts the air of the air storage cavity (213), and the air of the air storage cavity (213) is flushed into the mixing cavity (214) through the vent hole (2122) and flushes the residual paint at the position of the nozzle (2125).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311397345.0A CN117123399B (en) | 2023-10-26 | 2023-10-26 | Paint spraying device and paint spraying method for casting winding drum |
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| CN202311397345.0A CN117123399B (en) | 2023-10-26 | 2023-10-26 | Paint spraying device and paint spraying method for casting winding drum |
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| CN117123399A true CN117123399A (en) | 2023-11-28 |
| CN117123399B CN117123399B (en) | 2024-01-23 |
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| CN2691714Y (en) * | 2004-04-06 | 2005-04-13 | 黄振利 | Polyurethane foaming spray coating self cleaning type spray gun |
| US20110011952A1 (en) * | 2009-07-14 | 2011-01-20 | Oemmebi Di Massimo Brusa | Automated Flow Gun for Delivering Fluids |
| CN103203295A (en) * | 2013-04-19 | 2013-07-17 | 吴祎 | Manual-pneumatic bi-component spray gun |
| CN203803838U (en) * | 2014-04-17 | 2014-09-03 | 李国才 | Gas and liquid mixed cleaning device |
| CN104324825A (en) * | 2014-10-17 | 2015-02-04 | 宁波李氏实业有限公司 | Spray gun |
| CN108311309A (en) * | 2018-04-19 | 2018-07-24 | 陈永志 | A kind of spray nozzle of cleaning machine component |
| CN112912178A (en) * | 2018-10-26 | 2021-06-04 | 固瑞克明尼苏达有限公司 | Mixing chamber for a multipart spray applicator |
| CN114832966A (en) * | 2022-06-30 | 2022-08-02 | 海门市精博五金制品有限公司 | Atomizing spray head capable of removing nozzle hanging glue |
| CN219400629U (en) * | 2022-12-15 | 2023-07-25 | 山东九旭机械科技有限公司 | Self-cleaning two-component spray gun capable of being mixed in gun for multiple times |
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