Blackening device for metal surface galvanization

Abstract

The utility model discloses a blackening device for plating zinc on a metal surface, which comprises a spraying and uniformizing device, and the spraying and uniformizing device comprises a machine handle, a trigger switch, a feeding joint, a spraying pipe, a feeding joint, a conveying pipe, a movable joint, a spraying head, bristles, an inner cavity, an overflow hole and liquid storage cotton, according to the utility model, the spray-coating homogenizing device is arranged, a trigger switch is pressed down to enable the machine handle to pump a blackening agent into the material conveying pipe, the blackening agent enters the inner cavity through the material conveying pipe, in the process, the blackening agent pumped into the material conveying pipe is firstly absorbed by the liquid storage cotton and then released into the inner cavity through the liquid storage cotton, and the liquid storage cotton plays a buffering role in the inner cavity; the blackening agent is prevented from being sprayed outwards from the overflow holes in a spraying mode, then the blackening agent can be released to the outer portion of the spraying head through the overflow holes and adsorbed to the surfaces of the brush bristles, the blackening agent can be smeared and covered in gully dead angles on the surface of the metal workpiece through the brush bristles, smearing of the blackening agent is more uniform, and the dead angles are not prone to being left; and the blackening treatment effect of the metal workpiece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of metal blackening treatment, and particularly relates to a blackening device for galvanizing on the surface of a metal. Background Technique

[0002] Blackening treatment is a surface treatment process that turns the surface of steel materials black. It uses chemical reactions to form a black protective film on the surface of the substrate to achieve the purposes of rust prevention and aesthetics. The blackening treatment method is widely used in industrial manufacturing and is an indispensable process link in the machining industry. It is also a pretreatment step before galvanizing.

[0003] The existing patent application number: CN202222206572.8, a blackening device for galvanizing on the surface of a metal, includes a base, a first electric push rod arranged at the bottom of the first mounting seat, and a spraying nozzle arranged on the lower side of the second mounting seat. The first mounting seat is connected to the frame through a moving structure. A fixing component is arranged on the other side of the upper surface of the base. The fixing component includes a mounting frame. The mounting frame is arranged on the other side of the upper surface of the base. A workpiece carrier plate is arranged in the upper part of the mounting frame. A discharging component is arranged on the upper side of the base below the workpiece carrier plate. Adsorption heads are equidistantly inlaid on the upper side of the workpiece carrier plate. One end of the adsorption head is connected to a sub-exhaust pipe. The sub-exhaust pipe is arranged on the lower side inside the workpiece carrier plate. The sub-exhaust pipe is connected to a main exhaust pipe. The main exhaust pipe is connected to a vacuum pump.

[0004] The above patent records a metal blackening treatment device that sprays a blackening agent onto the surface of a metal workpiece through a spray gun to achieve blackening treatment. However, in actual application, when encountering metal workpieces with a relatively complex shape and structure, it may be difficult to completely cover the blackening agent into various grooves of the metal workpiece only by spraying, thus affecting the blackening treatment effect. Therefore, we propose a blackening device for galvanizing on the surface of a metal to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a blackening device for galvanizing on the surface of a metal to solve the problems raised in the above background technique.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a blackening device for galvanizing a metal surface, including a spraying and evenly coating device, the spraying and evenly coating device includes a machine handle, a trigger switch, a feed joint, a nozzle, a feed joint, a delivery pipe, a flexible joint, a spray head, bristles, an inner cavity, an overflow hole and a liquid storage cotton, the front part of the machine handle is connected to the trigger switch, the bottom end of the machine handle is connected to the feed joint, the top end of the machine handle is equipped with a nozzle, the top outlet of the nozzle is connected to the feed joint, the delivery pipe A flexible joint is installed at the bottom end, and the flexible joint is threadedly sleeved on the outside of the feed joint, so that the nozzle and the inside of the feed pipe are connected to each other. A spray head is integrally installed on the top of the feed pipe, and the front of the spray head is covered with bristles. An inner cavity is opened inside the spray head, wherein the feed pipe is connected with the inner cavity through the through-port at the rear of the spray head. No less than overflow holes are opened at the front of the spray head, and the overflow holes are equidistantly distributed at the front of the spray head, and the overflow holes pass through the inner side of the inner cavity, and the inner side of the inner cavity is filled with liquid storage cotton.

[0007] Preferably, the feed pipe can be docked and installed with the nozzle at 360° without dead angles.

[0008] Preferably, the bristle density is greater than 1000 bristles / cm².

[0009] Preferably, the liquid storage cotton is made of high-density PVA sponge.

[0010] Preferably, baffles are symmetrically provided on the upper and lower side walls of the inner cavity, and the baffles are located between the liquid storage cotton and the overflow hole.

[0011] Preferably, an anti-fouling cover is fastened to the front of the spray head, and the anti-fouling cover covers the outside of the bristles.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is provided with a spraying and evenly coating device. By pressing the trigger switch, the machine handle pumps the blackening agent into the feed pipe, and the blackening agent then enters the inner cavity through the feed pipe. During this process, the blackening agent pumped into the feed pipe will first be absorbed by the liquid storage cotton, and then released into the inner cavity by the liquid storage cotton. The liquid storage cotton plays a buffering role therein, preventing the blackening agent from spraying outward from the overflow hole in a spray shape. Subsequently, the blackening agent will be released to the outside of the spray head through the overflow hole and adsorbed to the surface of the brush bristles. The blackening agent can be smeared and covered in the grooves and dead corners on the surface of the metal workpiece through the brush bristles, so that the blackening agent is applied more evenly, and dead corners are not easily left, thereby ensuring the blackening treatment effect of the metal workpiece.

[0014] The utility model has an anti-fouling cover buckled on the front of the spray head. When the spraying and evenly coating device is idle, the anti-fouling cover can be used to buckle and seal the spray head to prevent the remaining blackening agent in the inner cavity from flowing out and polluting the on-site environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a left - view structural schematic diagram of the spraying and coating - leveling device in the present utility model;

[0016] Figure 2 For the present utility model Figure 1 disassembly structural schematic diagram;

[0017] Figure 3 It is a left - view structural schematic diagram of the spray head in the present utility model;

[0018] Figure 4 It is a left - view sectional structural schematic diagram of the spray head in the present utility model.

[0019] In the figure: spraying and coating - leveling device - 1, machine handle - 11, trigger switch - 12, feed joint - 13, spray pipe - 14, feed connection - 15, delivery pipe - 16, union - 17, spray head - 18, brush bristles - 19, inner cavity - 110, overflow hole - 111, liquid - storage cotton - 112, baffle - 113, anti - pollution cover - 114. Specific embodiments

[0020] In order to further explain the technical solution of the present utility model, it will be elaborated in detail through specific embodiments below.

[0021] Please refer to Figures 1-4 , the present utility model provides a blackening device for galvanizing on the metal surface, including a spraying and coating - leveling device 1. The spraying and coating - leveling device 1 includes a machine handle 11, a trigger switch 12, a feed joint 13, a spray pipe 14, a feed connection 15, a delivery pipe 16, a union 17, a spray head 18, brush bristles 19, an inner cavity 110, an overflow hole 111 and a liquid - storage cotton 112. The front part of the machine handle 11 is connected with the trigger switch 12, the bottom end of the machine handle 11 is connected with the feed joint 13, the top end of the machine handle 11 is installed with the spray pipe 14, the outlet part at the top end of the spray pipe 14 is connected with the feed connection 15, the bottom end of the delivery pipe 16 is installed with a union 17, and the union 17 is threadedly sleeved outside the feed joint 13 to make the interiors of the spray pipe 14 and the delivery pipe 16 communicate with each other. The top end of the delivery pipe 16 is integrally installed with a spray head 18, the front part of the spray head 18 is covered with brush bristles 19, an inner cavity 110 is opened inside the spray head 18, wherein the delivery pipe 16 communicates with the interior of the inner cavity 110 through the through - hole at the rear part of the spray head 18. There are no less than 2 overflow holes 111 opened at the front part of the spray head 18, the overflow holes 111 are equidistantly distributed at the front part of the spray head 18, and the overflow holes 111 penetrate into the inner side of the inner cavity 110. The inner side of the inner cavity 110 is filled with the liquid - storage cotton 112. The blackening agent pumped into the delivery pipe 16 will be first absorbed by the liquid - storage cotton 112 and then released by the liquid - storage cotton 112 into the inner cavity 110. The liquid - storage cotton 112 plays a buffering role therein to avoid the blackening agent spraying outwards in a spraying state from the overflow holes 111.

[0022] It is further explained that the feed pipe 16 can be docked and installed with the nozzle 14 at 360° without dead angles, and the relative orientation of the bristles 19 and the trigger switch 12 can be easily adjusted, so that the spraying and evenly spreading device 1 can adapt to the holding and operating habits of most people and is more convenient to use.

[0023] It is further explained that the density of the bristles 19 is above 1000 pieces / cm², so that the bristles 19 can better apply the blackening agent to the grooves and blind spots on the surface of the workpiece.

[0024] It is further explained that the liquid storage cotton 112 adopts high-density PVA sponge, which has excellent water absorption and can better meet the adsorption performance requirements of the liquid storage cotton 112.

[0025] Further explanation: baffles 113 are symmetrically provided on the upper and lower side walls of the inner cavity 110. The baffles 113 are located between the liquid storage cotton 112 and the overflow hole 111. The baffles 113 block the liquid storage cotton 112 in the rear part of the inner cavity 110 to prevent the liquid storage cotton 112 from blocking the overflow hole 111 and affecting the discharge of the black agent.

[0026] Further explanation is given that an anti-fouling cover 114 is installed on the front of the spray head 18, and the anti-fouling cover 114 covers the outside of the bristles 19. When the spraying and evenly distributing device 1 is idle, the anti-fouling cover 114 can be used to close the spray head 18 to prevent the remaining blackening agent in the inner cavity 110 from flowing out and polluting the on-site environment.

[0027] Here’s how it works:

[0028] First, before use, first connect the feed connector 13 to the external power pump through the pipeline, and pump the blackening agent into the spray and evenly coating device 1 through the external power pump to meet its feeding needs, and then screw the flexible joint 17 and the feeding connector 15 together to connect the nozzle 14 and the delivery pipe 16. The delivery pipe 16 can be docked and installed with the nozzle 14 at 360° without dead angles, and the relative orientation of the bristles 19 and the trigger switch 12 can be easily adjusted, which can better adapt to the holding and operating habits of most people and is more convenient to use.

[0029] Second, during use, first hold the handle 11 to control the movement of the spray head 18, so that the spray head 18 presses against the surface of the metal workpiece through the bristles 19. At this time, press the trigger switch 12 to pump the blackening agent into the feed pipe 16 through the nozzle 14 by the handle 11. The blackening agent then enters the inner cavity 110 through the feed pipe 16. During this process, the blackening agent pumped into the feed pipe 16 will be first absorbed by the liquid storage cotton 112, and then released from the liquid storage cotton 112 into the inner cavity 110. The liquid storage cotton 112 plays a buffering role to prevent the blackening agent from spraying out in a spray shape from the overflow hole 111. Subsequently, the blackening agent will be released to the outside of the spray head 18 through the overflow hole 111 and adsorbed on the surface of the bristles 19, so that the blackening agent can be applied and covered in the grooves and dead corners on the surface of the metal workpiece through the bristles 19, making the application of the blackening agent more uniform, not easy to leave dead corners, and ensuring the blackening treatment effect of the metal workpiece.

[0030] Third, by installing an anti-fouling cover 114 at the front of the spray head 18, when the spraying and coating device 1 is idle, the spray head 18 can be closed by the anti-fouling cover 114 to prevent the remaining blackening agent in the inner cavity 110 from flowing out and polluting the site environment.

[0031] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blackening device for galvanizing on a metal surface, characterized in that: The invention comprises a spraying and evenly distributing device (1), wherein the spraying and evenly distributing device (1) comprises a machine handle (11), a trigger switch (12), a feed joint (13), a nozzle (14), a feed joint (15), a delivery pipe (16), a flexible joint (17), a spray head (18), bristles (19), an inner cavity (110), an overflow hole (111) and a liquid storage cotton (112), wherein the front of the machine handle (11) is connected to the trigger switch (12), the bottom end of the machine handle (11) is connected to the feed joint (13), the top end of the machine handle (11) is equipped with a nozzle (14), the top outlet portion of the nozzle (14) is connected to the feed joint (15), the bottom end of the delivery pipe (16) is equipped with a flexible joint (17), and the flexible joint (1 7) The threaded sleeve is connected to the outside of the feed joint (13) so that the nozzle (14) and the inside of the feed pipe (16) are interconnected, and a spray head (18) is integrally installed on the top of the feed pipe (16), and the front of the spray head (18) is covered with bristles (19), and an inner cavity (110) is provided inside the spray head (18), wherein the feed pipe (16) is interconnected with the inside of the inner cavity (110) through the rear opening of the spray head (18), and the front of the spray head (18) is provided with no less than two overflow holes (111), and the overflow holes (111) are equidistantly distributed on the front of the spray head (18), and the overflow holes (111) pass through the inner side of the inner cavity (110), and the inner side of the inner cavity (110) is filled with liquid storage cotton (112).

2. The blackening device for galvanizing on the metal surface according to claim 1, characterized in that: The feed pipe (16) can be docked and installed with the nozzle (14) at 360 degrees without any dead angle.

3. The blackening device for zinc plating on the metal surface according to claim 1, wherein: The density of the bristles (19) is greater than 1000 bristles / cm².

4. The blackening device for zinc plating on the metal surface according to claim 1, characterized in that: The liquid storage cotton (112) is made of high-density PVA sponge.

5. The blackening device for galvanizing on a metal surface according to claim 1, wherein: Baffles (113) are symmetrically provided on the upper and lower side walls of the inner cavity (110), and the baffles (113) are located between the liquid storage cotton (112) and the overflow hole (111).

6. The blackening device for galvanizing on the metal surface according to claim 1, wherein: The front portion of the spray head (18) is buckled with an anti-fouling cover (114), which covers the outside of the bristles (19).

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