Spraying equipment capable of reducing coating residues

Abstract

The invention discloses spraying equipment capable of reducing coating residues, and belongs to the technical field of spraying. Comprising a support, a winding assembly rotationally installed on the support, a high-pressure hose and a spraying gun, one end of the high-pressure hose is wound around the winding assembly, the other end of the high-pressure hose is fixedly connected with the spraying gun, an opening is formed in the support, a containing base used for containing the spraying gun extends in front of the bottom end of the opening, and a cleaning cavity is formed in front of the containing base; and the middle part of the cleaning cavity is fixedly connected with a sealing ring. According to the spraying equipment capable of reducing the coating residues, the problems that in the using process of a spraying machine, a spraying gun is idle on one side after being used, a spraying head is not cleaned, chromatic aberration is caused when different colors are replaced for use next time, meanwhile, the spraying material remaining on the spraying nozzle blocks the spraying nozzle, and the spraying effect is poor are solved. And the service life of the spray gun is influenced for a long time.

Description

Technical Field

[0001] The present application relates to the field of spraying technology, and in particular to a spraying device for reducing paint residue. Background Art

[0002] The sprayer is a special coating equipment that uses spraying technology. The principle is to control the airflow to instantly push the air distribution reversing device to reverse, so that the piston of the pneumatic motor can make a stable and continuous reciprocating motion. The inhaled paint is pressurized and transported to the spray gun of the sprayer through a high-pressure hose. The spray gun instantly atomizes the paint and releases it to the surface of the object to be coated. The sprayer is mainly composed of a feeding device, a spray gun, and an atomization source. It is suitable for leather handbags, gift packaging, furniture, shoes, automobile manufacturing and other industries.

[0003] During the use of the spray machine, the spray gun is left idle after use, and the nozzle is not cleaned. When you change to a different color next time, it will cause color difference. At the same time, the spray material remaining on the nozzle will block the nozzle, which will have a certain impact on the service life of the spray gun in the long run.

[0004] Therefore, it is necessary to provide a spraying device that reduces paint residue to solve the above problems. Summary of the invention

[0005] Based on the above problems existing in the prior art, the purpose of the present application is to provide a spraying device that reduces paint residue to solve the problems raised in the above background technology.

[0006] The technical solution adopted by the present application to solve the technical problem is: a spraying device for reducing paint residue, comprising a bracket, a winding assembly rotatably mounted on the bracket, a high-pressure hose, and a spray gun, one end of the high-pressure hose is wound on the winding assembly, and the other end is fixedly connected to the spray gun, an opening is opened on the bracket, a placement seat for placing the spray gun extends in front of the bottom end of the opening, a cleaning chamber is opened in front of the placement seat, and a sealing ring is fixedly connected to the middle of the cleaning chamber;

[0007] The spray gun has a nozzle at its front end and a branch pipe at the vertical part. When the front end of the nozzle passes through the sealing ring forward, the rear end of the nozzle abuts against the sealing ring. The front end of the nozzle is provided with a spray port.

[0008] The cleaning device further comprises a cleaning mechanism, wherein the cleaning mechanism comprises a water spray cleaning plate, a spray pipe, a first return spring and a piston, wherein the water spray cleaning plate is located in the cleaning chamber and is connected to the water outlet end of the spray pipe, a spray port is provided at the water outlet end of the spray pipe, a water inlet end of the spray pipe is fixedly connected to the piston, and a notch communicating with the inside of the spray pipe is provided on the upper side of the spray pipe, the piston is sealed and slidably arranged in a matching control pipe along the front-back direction, an end of the control pipe away from the spray pipe is communicated with the bottom end of the water delivery pipe, when the piston is located at the rear end of the control pipe, the notch and the water delivery pipe are isolated from each other, and when the piston is located at the front end of the control pipe, the notch and the bottom end of the water delivery pipe are communicated with each other;

[0009] A clean water tank located above the cleaning cavity is fixed on the bracket, and the top of the water delivery pipe is connected to the clean water tank. A sewage tank located below the cleaning cavity is fixed on the bracket, and the bottom of the cleaning cavity is connected to the sewage tank through a downpipe.

[0010] Furthermore, the center of the water spray cleaning plate is rotatably connected to the water outlet end of the spray pipe, a protrusion is fixedly connected to the outer peripheral wall of the water spray cleaning plate, and a groove is spirally opened on the inner wall of the cleaning cavity near the bottom of the cavity, and the protrusion slides in the groove.

[0011] Furthermore, a plurality of brush layers and rag layers are alternately arranged along a circumferential direction at one end of the water spray cleaning plate facing the paint spray port, and the height of the rag layer is higher than that of the brush layer.

[0012] Furthermore, a wire block arranged below the center of the rear baffle is fixedly connected to the bottom center of the bracket, and a wire hole is provided at the center of the wire block;

[0013] The winding assembly comprises a front baffle, a rear baffle, a storage cylinder and a rotating shaft, wherein the rotating shaft penetrates the bracket and is rotatably connected to the bracket, the front baffle, the rear baffle and the storage cylinder are coaxially fixedly connected to the rotating shaft, the winding assembly is located at the end of the rear baffle close to the back of the bracket, and the storage cylinder is between the front baffle and the rear baffle;

[0014] The rotating mechanism includes a protective box, a limit block and a spring. The protective box is installed at the front end of the bracket, the limit block is fixedly connected to the inner wall of the protective box, one end of the rotating shaft away from the winding assembly is located in the protective box, one end of the spring is fixedly connected to the outer peripheral wall of the rotating shaft located in the protective box, and the other end is connected to the limit block.

[0015] Furthermore, the telescopic unit is also included, and the telescopic unit includes a telescopic rod, a telescopic shell, a second return spring and an extension rod, the telescopic shell is fixedly connected to the bracket, the telescopic rod is slidably connected to the left side of the telescopic shell, the tail end of the telescopic rod is fixedly connected to the extension rod, the extension rod is slidably connected to the right side of the telescopic shell, the second return spring is nested in the tail end of the extension rod and is located inside the telescopic shell, one end of the second return spring abuts against the tail end of the telescopic rod, and the other end abuts against the right end inner wall of the telescopic shell;

[0016] The outer peripheral wall of the rear baffle is provided with a plurality of limiting holes at equal intervals along its circumferential direction, and the limiting holes are used for the head end of the telescopic rod to be inserted;

[0017] It also includes a steel wire rope fixedly connected to the extension rod. When the front end of the nozzle passes through the opening forward and pushes the water spray cleaning plate forward to drive the piston to move to the front end of the control tube, so that the gap and the bottom end of the water pipe are connected to each other, the spray gun will force the steel wire rope to move, thereby driving the telescopic rod to move to the right through the steel wire rope to disengage from the limiting hole.

[0018] Furthermore, the upper side of the head end of the telescopic rod is a plane, and the lower side is an inclined surface that gradually slopes downward from left to right. When the head end of the telescopic rod is inserted into the limiting hole, the inclined surface is located in the limiting hole.

[0019] Furthermore, the invention also includes a clamping unit for fixing the spray gun barrel, and the clamping unit includes a clamping shell, a clamping hoop, and a third return spring. The clamping shell is fixedly connected to the bracket and is located below the opening. The telescopic shell and the clamping shell are at the same horizontal position. The tail end of the clamping hoop passes through one side of the clamping shell connected to the bracket and is slidably connected to the bracket. One end of the third return spring abuts against the middle of the clamping hoop, and the other end abuts against one side of the clamping shell connected to the bracket.

[0020] The beneficial effect of the present application is that the present application provides a spraying device for reducing paint residue, which cleans the spray gun after use by providing a cleaning mechanism. At the same time, a rotating mechanism is provided to automatically recycle the high-pressure hose to prevent entanglement, so that the entire spraying process can be completed efficiently. This solves the technical problem that during the use of the spray machine, the spray gun is idled aside after use and the nozzle is not cleaned, which will cause color difference when changing to a different color next time. At the same time, the spray material remaining on the nozzle will block the nozzle, which will have a certain impact on the service life of the spray gun in the long run.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] In the attached picture:

[0024] Figure 1 It is an overall schematic diagram of this application;

[0025] Figure 2 A schematic diagram of the front end of the bracket of this application;

[0026] Figure 3 A schematic diagram of the rear end of the bracket of this application;

[0027] Figure 4 This is a schematic diagram of the rotary mechanism of this application;

[0028] Figure 5 For this application Figure 3 Enlarged schematic diagram of area A in the middle;

[0029] Figure 6 A schematic diagram of a telescopic rod of the present application;

[0030] Figure 7 For this application Figure 3 Enlarged schematic diagram of area B in the middle;

[0031] Figure 8 A schematic cross-sectional view of the stent of the present application;

[0032] Fig. 9 For this application Figure 8 Enlarged schematic diagram of the middle C area;

[0033] Fig.10 For this application Fig. 9 The middle D area amplifies the intention;

[0034] Fig.11 A schematic diagram of a water spray cleaning plate of the present application;

[0035] Fig.12 This is a schematic diagram of the component status during cleaning of this application;

[0036] Among them, the reference numerals in the figure are:

[0037] 1. Machine base; 2. Compressed air pump; 21. Air pipe; 3. Bracket; 31. Opening; 32. Placement seat; 33. Cleaning chamber; 331. Sealing ring; 332. Groove; 4. Winding assembly; 41. Front baffle plate; 42. Rear baffle plate; 421. Limiting hole; 43. Storage cylinder; 44. Rotating shaft; 441. Air collecting chamber; 5. High-pressure hose; 6. Spray gun; 61. Nozzle; 62. Spraying port; 63. Branch pipe; 7. Rotating mechanism; 71. Protective box; 72. Limiting block; 73. Spring; 8. Cleaning mechanism; 811. Water spray cleaning plate; 8111. Bump; 8 112. Brush layer; 8113. Rag layer; 812. Spray pipe; 8121. Spray port; 8122. Notch; 813. First return spring; 814. Piston; 82. Clean water tank; 83. Sewage tank; 84. Water pipe; 85. Downpipe; 9. Telescopic unit; 91. Telescopic rod; 911. Inclined surface; 912. Flat surface; 92. Telescopic shell; 93. Second return spring; 94. Extension rod; 10. Snap-on unit; 101. Snap-on shell; 102. Clamp; 103. Third return spring; 11. Wire rope; 12. Wire block; 121. Wire hole. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0040] like Figure 1-12 As shown, the present application provides a technical solution: a spraying device for reducing paint residue, comprising a bracket 3, a winding assembly 4 rotatably mounted on the bracket 3, a high-pressure hose 5, and a spray gun 6, one end of the high-pressure hose 5 is wound around the winding assembly 4, and the other end is fixedly connected to the spray gun 6, an opening 31 is provided on the bracket 3, a placement seat 32 for placing the spray gun 6 is extended in front of the bottom end of the opening 31, a cleaning chamber 33 is provided in front of the placement seat 32, and a sealing ring 331 is fixedly connected to the middle of the cleaning chamber 33;

[0041] The spray gun 6 has a nozzle 61 at its front end and a branch pipe 63 at the vertical portion. When the front end of the nozzle 61 passes through the sealing ring 331 forward, the rear end of the nozzle 61 abuts against the sealing ring 331. The front end of the nozzle 61 is provided with a spray port 62.

[0042] The cleaning device 8 further comprises a cleaning mechanism 8, the cleaning mechanism 8 comprises a water spray cleaning plate 811, a spray pipe 812, a first return spring 813 and a piston 814, the water spray cleaning plate 811 is located in the cleaning chamber 33 and is connected to the water outlet end of the spray pipe 812, a spray port 8121 is provided at the water outlet end of the spray pipe 812, a water inlet end of the spray pipe 812 is fixedly connected to the piston 814, and a notch 8122 communicating with the inside of the spray pipe 812 is provided on the upper side of the spray pipe 812, the piston 814 is sealed and slidably arranged in a matching control pipe along the front-to-back direction, one end of the control pipe away from the spray pipe 812 is communicated with the bottom end of the water delivery pipe 84, when the piston 814 is located at the rear end of the control pipe, the notch 8122 and the water delivery pipe 84 are isolated from each other, and when the piston 814 is located at the front end of the control pipe, the notch 8122 and the bottom end of the water delivery pipe 84 are communicated with each other;

[0043] A clean water tank 82 located above the cleaning chamber 33 is fixed on the bracket 3, and the top of the water supply pipe 84 is connected to the clean water tank 82. A sewage tank 83 located below the cleaning chamber 33 is fixed on the bracket 3, and the bottom of the cleaning chamber 33 is connected to the sewage tank 83 through a downpipe 85.

[0044] The nozzle 61 of the spray gun 6 is inserted into the cleaning chamber 33, so that the paint spray port 62 is against the water spray cleaning plate 811. At this time, the tail end of the nozzle 61 is located in the sealing ring 331, and the first return spring 813 is compressed to generate elastic force. The water spray cleaning plate 811 moves forward to drive the piston 814 to move forward. The piston 814 moves forward to connect the spray pipe 812 and the water delivery pipe 84. The clean water flows from the water delivery pipe 84 into the spray pipe 812 under the influence of gravity and then flows out of the spray pipe 812. The paint spray port 62 is cleaned by spraying the sewage from the mouth 8121 onto the paint spray port 62. The cleaned sewage flows into the sewage tank 83 along the downpipe 85. After cleaning, the spray gun 6 is released, and the paint spray port 62 is no longer in contact with the water spray cleaning plate 811. The elastic force of the first return spring 813 is released, and the water spray cleaning plate 811 moves backward, driving the piston 814 to move backward, blocking the water supply pipe 84, so that no water in the water supply pipe 84 passes through the spray pipe 812.

[0045] The center of the water spray cleaning plate 811 is rotatably connected to the water outlet end of the spray pipe 812, a protrusion 8111 is fixedly connected to the outer wall of the water spray cleaning plate 811, a groove 332 is spirally opened on the inner wall of the cleaning chamber 33 near the bottom of the chamber, the protrusion 8111 slides in the groove 332, and a plurality of brush layers 8112 and rag layers 8113 are alternately arranged along the circumferential direction at one end of the water spray cleaning plate 811 facing the paint spray port 62, and the height of the rag layer 8113 is higher than the brush layer 8112.

[0046] When the water spray cleaning plate 811 moves forward, the protrusion 8111 moves in the spiral groove 332, causing the water spray cleaning plate 811 to deflect a certain angle, so that the water spray cleaning plate 811 will form a scrubbing action on the paint spray port 62 to improve the cleanliness of the paint spray port. When the paint spray port 62 is against the water spray cleaning plate 811, the paint spray port 62 is against the brush layer 8112 and the rag layer 8113. While the water spray cleaning plate 811 rotates, the brush layer 8112 and the rag layer 8113 scrub the paint spray port 62 to clean it.

[0047] The bottom center of the bracket 3 is fixedly connected with a wire block 12 arranged below the center of the rear baffle 42, and a wire hole 121 is opened at the center of the wire block 12;

[0048] The winding assembly 4 includes a front baffle 41, a rear baffle 42, a storage cylinder 43 and a rotating shaft 44. The rotating shaft 44 passes through the bracket 3 and is rotatably connected to the bracket 3. The front baffle 41, the rear baffle 42 and the storage cylinder 43 are all coaxially fixedly connected to the rotating shaft 44. The winding assembly 4 is located at the end where the rear baffle 42 is located, close to the back of the bracket 3, and the storage cylinder 43 is between the front baffle 41 and the rear baffle 42.

[0049] The rotating mechanism 7 includes a protective box 71, a limit block 72 and a spring 73. The protective box 71 is installed at the front end of the bracket 3. The limit block 72 is fixedly connected to the inner wall of the protective box 71. The end of the rotating shaft 44 away from the winding assembly 4 is located in the protective box 71. One end of the spring 73 is fixedly connected to the outer peripheral wall of the rotating shaft 44 located in the protective box 71, and the other end is connected to the limit block 72.

[0050] The rotating shaft 44 is provided with a gas collecting chamber 441 away from the winding assembly 4. The high-pressure hose 5 is wound on the storage cylinder 43. One end of the high-pressure hose 5 passes through the storage cylinder 43 and communicates with the gas collecting chamber 441. The other end of the high-pressure hose 5 passes through the wire hole 121 and is fixedly connected to the spray gun 6.

[0051] The device also includes a machine base 1 and a compressed air pump 2, the compressed air pump 2 is installed on the top of the machine base 1, the bottom of the bracket 3 is fixedly connected to the top of the machine base 1, the air outlet end of the compressed air pump 2 is connected to one end of the air supply pipe 21, and one end of the air supply pipe 21 is rotatably sealed and connected to the end of the air collecting chamber 441.

[0052] Pull the spray gun 6, the high-pressure hose 5 passes through the wire hole 121, and the winding assembly 4 rotates counterclockwise under the action of the pulling force of the high-pressure hose 5. The rotation of the rotating shaft 44 drives the spring 73 to rotate counterclockwise. At this time, the spring 73 is gradually tightened to generate elastic force. When the spray gun 6 is no longer needed and needs to be retracted, the spring 73 releases the elastic force, driving the rotating shaft 44 to rotate clockwise, so that the high-pressure hose 5 is wound on the storage tube 43, and the compressed air pump 2 transmits the generated compressed air to the air supply pipe 21 through the air supply pipe 21, and passes through the air collecting chamber 441 and the high-pressure hose 5 in turn to reach the spray gun 6 for spraying.

[0053] The telescopic unit 9 also includes a telescopic rod 91, a telescopic shell 92, a second return spring 93 and an extension rod 94. The telescopic shell 92 is fixedly connected to the bracket 3, the telescopic rod 91 is slidably connected to the left side of the telescopic shell 92, the tail end of the telescopic rod 91 is fixedly connected to the extension rod 94, the extension rod 94 is slidably connected to the right side of the telescopic shell 92, the second return spring 93 is nested at the tail end of the extension rod 94 and is located inside the telescopic shell 92, one end of the second return spring 93 abuts against the tail end of the telescopic rod 91, and the other end abuts against the inner wall of the right end of the telescopic shell 92;

[0054] The outer peripheral wall of the rear baffle 42 is provided with a plurality of limiting holes 421 at equal intervals along the circumferential direction thereof, and the limiting holes 421 are used for the head end of the telescopic rod 91 to be inserted;

[0055] It also includes a steel wire rope 11 fixedly connected to the extension rod 94. When the front end of the nozzle 61 passes through the opening 31 forward and pushes the water spray cleaning plate 811 forward to drive the piston 814 to move to the front end of the control tube, so that the notch 8122 and the bottom end of the water pipe 84 are connected to each other, the spray gun 6 will force the steel wire rope 11 to move, thereby driving the telescopic rod 91 to move to the right through the steel wire rope 11 to disengage from the limiting hole 421.

[0056] When the rear baffle plate 42 rotates counterclockwise, the inclined surface 911 on the telescopic rod 91 contacts the limiting hole 421 and slides from the inside to the outside, sliding along the outer peripheral wall of the rear baffle plate 42. At this time, the telescopic rod 91 moves backward, and the second return spring 93 generates an elastic force. When it rotates to the next limiting hole 421, the second return spring 93 releases the elastic force, inserting the telescopic rod 91 into the limiting hole 421, and repeating this process.

[0057] The upper side of the front end of the telescopic rod 91 is a plane 912 , and the lower side is an inclined surface 911 that gradually slopes downward from left to right. When the front end of the telescopic rod 91 is inserted into the limiting hole 421 , the inclined surface 911 is located in the limiting hole 421 .

[0058] When there is no external force rotating the rear baffle plate 42 counterclockwise, the spring 73 releases the elastic force to rotate the rear baffle plate 42 clockwise. However, because the telescopic rod 91 is in the limiting hole 421 and the top of the telescopic rod 91 is a flat surface 912, the telescopic rod 91 holds the rear baffle plate 42 in the limiting hole 421, preventing the rear baffle plate 42 from being reversed due to the release of the elastic force of the spring 73.

[0059] It also includes a clamping unit 10 for fixing the branch pipe 63 of the spray gun 6, the clamping unit 10 includes a clamping shell 101, a clamping hoop 102, and a third return spring 103. The clamping shell 101 is fixedly connected to the bracket 3 and is located below the opening 31. The telescopic shell 92 and the clamping shell 101 are at the same horizontal position. The tail end of the clamping hoop 102 passes through the side of the clamping shell 101 connected to the bracket 3 and is slidably connected to the bracket 3. One end of the third return spring 103 abuts against the middle of the clamping hoop 102, and the other end abuts against the side of the clamping shell 101 connected to the bracket 3.

[0060] When the branch pipe 63 is pressed against the clamp 102 , the clamp 102 is driven to move forward, thereby driving one end of the wire rope 11 to move forward.

[0061] In one embodiment, the paint spray port 62 can be cleaned.

[0062] Specifically, the nozzle 61 of the spray gun 6 is inserted from the cleaning chamber 33, so that the paint spray port 62 is held against the water spray cleaning plate 811. At this time, the tail end of the nozzle 61 is located in the sealing ring 331, and the first return spring 813 is compressed to generate elastic force. The water spray cleaning plate 811 moves forward to drive the piston 814 to move forward. The piston 814 moves forward to connect the spray pipe 812 and the water pipe 84. The clean water flows from the water pipe 84 into the spray pipe 812 under the influence of gravity, and is sprayed from the spray port 8121 to the paint spray port 62. The paint spray port 62 is cleaned, and the cleaned sewage flows into the sewage tank 83 along the downpipe 85. At the same time, when the water spray cleaning plate 811 moves forward, the protrusion 8111 moves in the spiral groove 332, causing the water spray cleaning plate 811 to deflect a certain angle. When the paint spray port 62 is in contact with the water spray cleaning plate 811, the paint spray port 62 is in contact with the brush layer 8112 and the rag layer 8113. When the water spray cleaning plate 811 rotates, the brush layer 8112 and the rag layer 8113 scrub the paint spray port 62 to clean it.

[0063] After cleaning is completed, the spray gun 6 is released, and the paint spray port 62 no longer contacts the water spray cleaning plate 811 . The water spray cleaning plate 811 moves backward due to the release of the elastic force of the first return spring 813 , driving the piston 814 to move backward, blocking the water pipe 84 , so that no water in the water pipe 84 passes through the spray pipe 812 .

[0064] In one embodiment, the high-pressure hose 5 is stored while the paint spray port 62 is being cleaned.

[0065] Specifically, the spray gun 6 is pulled, and the high-pressure hose 5 passes through the wire hole 121. The winding assembly 4 rotates counterclockwise under the action of the pulling force of the high-pressure hose 5, and the rotation of the shaft 44 drives the spring 73 to rotate counterclockwise. At this time, the spring 73 is gradually tightened to generate elastic force. When the spray gun 6 is no longer needed and needs to be retracted, the spring 73 releases the elastic force, driving the shaft 44 to rotate clockwise, so that the high-pressure hose 5 is wound on the storage tube 43. The compressed air pump 2 transmits the generated compressed air to the air supply pipe 21 through the air supply pipe 21, and passes through the air collecting chamber 441 and the high-pressure hose 5 in turn to reach the spray gun 6 for spraying. During the counterclockwise rotation of the rear baffle 42, the inclined surface 911 on the telescopic rod 91 and the limiting hole 421 After contact, it slides from the inside to the outside and slides along the outer peripheral wall of the rear baffle plate 42. At this time, the telescopic rod 91 moves backward, and the second return spring 93 generates an elastic force. When it rotates to the next limit hole 421, the second return spring 93 releases the elastic force to insert the telescopic rod 91 into the limit hole 421, and reciprocates in this way. When there is no external force to rotate the rear baffle plate 42 counterclockwise, the spring 73 will release the elastic force to make the rear baffle plate 42 rotate clockwise, but because the telescopic rod 91 is in the limit hole 421, and the top of the telescopic rod 91 is a flat surface 912, the telescopic rod 91 holds the rear baffle plate 42 in the limit hole 421, preventing the rear baffle plate 42 from being reversed by the elastic force released by the spring 73.

[0066] When the branch pipe 63 of the spray gun 6 is pressed into the clamp 102, the clamp 102 is squeezed and moves forward, driving one end of the wire rope 11 to move forward, and the wire rope 11 pulls the extension rod 94, driving the telescopic rod 91 to move to the right, so that the telescopic rod 91 is disengaged from the limiting hole 421. At this time, the spring 73 releases the elastic force, driving the rotating shaft 44 to rotate clockwise, so that the high-pressure hose 5 is wound on the storage tube 43. When the high-pressure hose 5 is completely wound on the storage tube 43, the hand is released, and the cleaning of the spray port 62 is also stopped.

[0067] In summary, the device is provided with a cleaning mechanism 8 to clean the spray gun 6 after use. During the cleaning, a rotating mechanism 7 is provided to automatically recycle the high-pressure hose 5 to prevent entanglement, so that the entire spraying process can be completed efficiently. This solves the technical problem that during the use of the spray machine, the spray gun is left idle after use and the nozzle is not cleaned, which will cause color difference when changing to a different color next time. At the same time, the spray material remaining on the nozzle will block the nozzle, which will have a certain impact on the service life of the spray gun in the long run.

[0068] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spraying device for reducing paint residue, comprising a bracket (3), a winding assembly (4) rotatably mounted on the bracket (3), a high-pressure hose (5), and a spray gun (6), characterized in that: One end of the high-pressure hose (5) is wound around the winding assembly (4), and the other end is fixedly connected to the spray gun (6); an opening (31) is provided on the bracket (3); a placement seat (32) for placing the spray gun (6) extends in front of the bottom end of the opening (31); a cleaning chamber (33) is provided in front of the placement seat (32); a sealing ring (331) is fixedly connected to the middle of the cleaning chamber (33); The spray gun (6) has a nozzle (61) located at its front end and a branch pipe (63) located at the vertical portion. When the front end of the nozzle (61) passes through the sealing ring (331) forward, the rear end of the nozzle (61) abuts against the sealing ring (331). The front end of the nozzle (61) is provided with a paint spray port (62); The cleaning device also comprises a cleaning mechanism (8), the cleaning mechanism (8) comprising a water spray cleaning plate (811), a spray pipe (812), a first return spring (813) and a piston (814), the water spray cleaning plate (811) being located in the cleaning chamber (33) and connected to the water outlet of the spray pipe (812), the water outlet of the spray pipe (812) being provided with a spray port (8121), the water inlet of the spray pipe (812) being fixedly connected to the piston (814), and the upper side of the spray pipe (812) being provided with a spring connected to the spray pipe (814). The piston (814) is sealed and slidably disposed in a matching control tube along the front-to-back direction. The end of the control tube away from the spray pipe (812) is connected to the bottom end of the water pipe (84). When the piston (814) is located at the rear end of the control tube, the notch (8122) and the water pipe (84) are isolated from each other. When the piston (814) is located at the front end of the control tube, the notch (8122) and the bottom end of the water pipe (84) are connected to each other. A clean water tank (82) located above the cleaning chamber (33) is fixed on the bracket (3), and the top end of the water delivery pipe (84) is connected to the clean water tank (82). A sewage tank (83) located below the cleaning chamber (33) is fixed on the bracket (3), and the bottom of the cleaning chamber (33) is connected to the sewage tank (83) through a downpipe (85).

2. A spraying device for reducing paint residue according to claim 1, characterized in that: The center of the water spray cleaning plate (811) is rotatably connected to the water outlet end of the spray pipe (812); a protrusion (8111) is fixedly connected to the outer peripheral wall of the water spray cleaning plate (811); a groove (332) is spirally opened on the inner wall of the cleaning cavity (33) close to the cavity bottom; and the protrusion (8111) is located in the groove (332) and slides.

3. A spraying device for reducing paint residue according to claim 2, characterized in that: A plurality of brush layers (8112) and rag layers (8113) are alternately arranged along a circumferential direction at one end of the water spray cleaning plate (811) facing the paint spray port (62), and the height of the rag layer (8113) is higher than that of the brush layer (8112).

4. A spraying device for reducing paint residue according to claim 3, characterized in that: The bottom center of the bracket (3) is fixedly connected to a wire block (12) arranged below the center of the rear baffle (42), and a wire hole (121) is provided at the center of the wire block (12); The winding assembly (4) comprises a front baffle (41), a rear baffle (42), a storage cylinder (43) and a rotating shaft (44); the rotating shaft (44) penetrates the bracket (3) and is rotatably connected to the bracket (3); the front baffle (41), the rear baffle (42) and the storage cylinder (43) are all coaxially fixedly connected to the rotating shaft (44); the winding assembly (4) is located at the end of the rear baffle (42) close to the back of the bracket (3); and the storage cylinder (43) is between the front baffle (41) and the rear baffle (42); The rotating mechanism (7) comprises a protection box (71), a limit block (72) and a spring (73); the protection box (71) is mounted at the front end of the bracket (3); the limit block (72) is fixedly connected to the inner wall of the protection box (71); one end of the rotating shaft (44) away from the winding assembly (4) is located in the protection box (71); one end of the spring (73) is fixedly connected to the outer peripheral wall of the rotating shaft (44) located in the protection box (71); and the other end is connected to the limit block (72).

5. A spraying device for reducing paint residue according to claim 4, characterized in that: The telescopic unit (9) further comprises a telescopic rod (91), a telescopic shell (92), a second return spring (93) and an extension rod (94); the telescopic shell (92) is fixedly connected to the bracket (3); the telescopic rod (91) is slidably connected to the left side of the telescopic shell (92); the tail end of the telescopic rod (91) is fixedly connected to the extension rod (94); the extension rod (94) is slidably connected to the right side of the telescopic shell (92); the second return spring (93) is nested in the tail end of the extension rod (94) and is located inside the telescopic shell (92); one end of the second return spring (93) abuts against the tail end of the telescopic rod (91), and the other end abuts against the inner wall of the right end of the telescopic shell (92); The outer peripheral wall of the rear baffle (42) is provided with a plurality of limiting holes (421) at equal intervals along its circumferential direction, and the limiting holes (421) are used for the head end of the telescopic rod (91) to be inserted; It also includes a steel wire rope (11) fixedly connected to the extension rod (94). When the front end of the nozzle (61) passes through the opening (31) forward and pushes the water spray cleaning plate (811) forward to drive the piston (814) to move to the front end of the control tube, so that the notch (8122) and the bottom end of the water pipe (84) are connected to each other, the spray gun (6) will force the steel wire rope (11) to move, thereby driving the telescopic rod (91) to move to the right through the steel wire rope (11) to disengage from the limiting hole (421).

6. A spraying device for reducing paint residue according to claim 5, characterized in that: The upper side of the front end of the telescopic rod (91) is a plane (912), and the lower side is an inclined surface (911) that gradually slopes downward from left to right. When the front end of the telescopic rod (91) is inserted into the limiting hole (421), the inclined surface (911) is located in the limiting hole (421).

7. A spraying device for reducing paint residue according to claim 6, characterized in that: The invention also includes a clamping unit (10) for fixing the branch pipe (63) of the spray gun (6), the clamping unit (10) including a clamping shell (101), a clamping hoop (102), and a third return spring (103); the clamping shell (101) is fixedly connected to the bracket (3) and is located below the opening (31); the telescopic shell (92) and the clamping shell (101) are at the same horizontal position; the tail end of the clamping hoop (102) passes through a side of the clamping shell (101) connected to the bracket (3) and is slidably connected to the bracket (3); one end of the third return spring (103) abuts against the middle of the clamping hoop (102), and the other end abuts against a side of the clamping shell (101) connected to the bracket (3).

Images