Powder coating line facilitating color changing

Abstract

The invention relates to a powder coating line facilitating color changing. The powder coating line facilitating color changing comprises a powder room system, and the powder room system comprises a powder supply chamber; the powder supply chamber comprises a powder supply chamber body, a powder supply pump, a powder supply box and a powder suction pump; the powder supply pump comprises an upper pump body and a lower pump body which are detachably connected; the powder supply pump is connected with the cyclone recovery device and is used for feeding the powder recovered by the cyclone recovery device into the powder supply box; the powder supply box is used for containing powder to be sprayed. The powder suction pump is connected with the powder spraying device and used for feeding powder in the powder supply box into the powder spraying device. And a hinge door is arranged on the cyclone recovery device. Compared with the prior art, the upper pump body and the lower pump body of the powder supply pump are detachably arranged, a hinge door is arranged on the cyclone recovery device, the interiors of the powder supply pump and the cyclone recovery device can be thoroughly cleaned after the powder supply pump and the cyclone recovery device are opened, and cross contamination can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of powder coating, and particularly to a powder coating line facilitating color change. Background Art

[0002] Powder coating (spraying) is a new process in surface coating technology. It is a coating process that forms a coating film by coating in powder form. The powder coating does not contain solvents and has the characteristics of no use of solvents, no pollution, energy and resource saving, reduction of labor intensity, and high mechanical strength of the coating film.

[0003] CN204448470U discloses a powder coating system, including a degreasing tunnel, a water washing tunnel, a water cutting furnace, a movable powder booth, a curing furnace, a conveying hanging chain, and an electric control station. The degreasing tunnel, the water washing tunnel, the water cutting furnace, the movable powder booth, and the curing furnace are sequentially connected by the conveying hanging chain, and the degreasing tunnel, the water washing tunnel, the water cutting furnace, the movable powder booth, the curing furnace, and the conveying hanging chain are respectively connected to the electric control station. However, when spraying with this system, some powder will remain in the related equipment for powder spraying. When changing the color for spraying, it will affect the spraying effect and cause color overlap. And changing the color for spraying is rather troublesome. Especially for some relatively complex shell structures, it is difficult to thoroughly clean the powder inside, and cross-contamination is likely to occur.

[0004] Therefore, there is an urgent need for a powder coating line that can solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects existing in the above prior art and provide a powder coating line facilitating color change. In the solution of the present invention, the upper and lower pump bodies of the powder supply pump are detachably arranged, and a hinge door is provided on the cyclone recovery device, which is convenient for thoroughly cleaning the inside of the powder supply pump and the cyclone recovery device, and can avoid cross-contamination.

[0006] The purpose of the present invention can be realized by the following technical solutions:

[0007] The object of the present invention is to provide a powder coating line facilitating color change. The powder coating line facilitating color change includes a powder booth system, and the powder booth system includes a powder supply chamber, a powder booth processing chamber, a powder spraying device, a cyclone recovery device, and a post-stage recovery device; the powder supply chamber is connected to the powder spraying device; the cyclone recovery device is connected to the powder booth processing chamber; the post-stage recovery device is connected to the cyclone recovery device; the cyclone recovery device is connected to the powder supply chamber; the powder supply chamber includes a powder supply chamber body, a powder supply pump, a powder supply tank, and a powder suction pump; the powder supply pump includes an upper pump body and a lower pump body that are detachably connected; the powder supply pump is connected to the powder supply chamber body, the powder supply pump is connected to the cyclone recovery device, and the powder supply pump is used for feeding the powder recovered by the cyclone recovery device into the powder supply tank; the powder supply tank is connected to the powder supply chamber body, and the powder supply tank is used for accommodating the powder to be sprayed; the powder suction pump is connected to the powder supply chamber body, the powder suction pump is connected to the powder spraying device, and the powder suction pump is used for feeding the powder in the powder supply tank into the powder spraying device; a hinge door is provided on the cyclone recovery device.

[0008] Further, the powder spraying device includes a spray gun; the spray gun is connected to the powder suction pump of the powder supply chamber through a powder inlet pipe; the spray guns are arranged on both sides of the powder booth processing chamber, and the workpiece is located between the spray guns on both sides.

[0009] Further, the powder spraying device further includes a lift; the spray gun is connected to the lift.

[0010] Further, the cyclone recovery device is connected to the powder booth processing chamber through a pipeline; the post-stage recovery device is connected to the cyclone recovery device through a pipeline; the cyclone recovery device is connected to the powder supply pump of the powder supply chamber through a pipeline.

[0011] Further, the powder suction pump is connected to the powder supply chamber body through an X-Z direction moving component.

[0012] Further, the powder supply tank is connected to the powder supply chamber body through an X direction moving component.

[0013] Further, the upper pump body and the lower pump body are detachably connected through a limit pressing component.

[0014] Further, the powder coating line further includes a pretreatment system, a water cut furnace, a curing furnace, and a conveying chain; the pretreatment system, the water cut furnace, the powder booth system, and the curing furnace are arranged in sequence; the conveying chain is connected to the pretreatment system, the water cut furnace, the powder booth system, and the curing furnace in sequence.

[0015] Further, the cyclone recovery device includes a straight cylinder and a conical cylinder detachably connected to the straight cylinder; the hinge door is arranged on the side wall of the conical cylinder; the straight cylinder and the conical cylinder are detachably connected through fasteners.

[0016] Further, lifting tools are arranged at intervals on the conveying chain, and the lifting tools are used for hoisting workpieces.

[0017] Further, the conical cylinder includes multiple conical cylinder segments; the multiple conical cylinder segments are connected in sequence; and adjacent conical cylinder segments are connected by fasteners.

[0018] Further, the cyclone recovery device further includes a powder collection chamber; the powder collection chamber is communicated with the bottom of the conical cylinder; and the powder collection chamber is connected to the powder supply chamber.

[0019] Further, the post-stage recovery device includes a fan and a post-stage recovery chamber; the fan is arranged in the post-stage recovery chamber, and the fan is used to ensure a certain negative pressure at the opening of the powder room system to avoid powder overflow.

[0020] Further, the spray gun is a high-voltage ion spray gun.

[0021] Further, the post-stage recovery device includes a fan and a post-stage recovery chamber; the fan is arranged in the post-stage recovery chamber, and the fan is used to ensure a certain negative pressure at the opening of the powder room system to avoid powder overflow.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1) For the powder coating line facilitating color change provided by the present invention, the upper and lower pump bodies of the powder supply pump are detachably arranged, and a hinge door is provided on the cyclone recovery device, which is convenient to open for thorough cleaning of the inside of the powder supply pump and the cyclone recovery device, and can avoid cross-contamination;

[0024] 2) For the powder coating line facilitating color change provided by the present invention, the powder supply tank is connected to the powder supply chamber body through an X-direction moving component, which is convenient for replacing the powder supply tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the powder coating line facilitating color change in the embodiment of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the powder room system of the powder coating line facilitating color change in the embodiment of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the powder supply chamber of the powder room system of the powder coating line facilitating color change in the embodiment of the present invention.

[0028] Figure 3 It is a schematic structural diagram of the powder supply chamber of the powder room system of the powder coating line facilitating color change in the embodiment of the present invention.

[0029] Figure 4 It is Figure 3 the schematic A-A cross-sectional view of

[0030] Wherein:

[0031] 1. Powder room system, 11. Powder supply chamber, 111. Powder supply pump, 112. Powder supply tank, 1121. Upper pump body, 1122. Lower pump body, 1123. Limit pressing assembly, 1124. Powder supply chamber body, 113. Powder suction pump, 115. X-Z direction moving assembly, 116. X direction moving assembly, 12. Powder room processing chamber, 13. Powder spraying device, 131. Spray gun, 132. Lift, 14. Cyclone recovery device, 141. Hinge door, 142. Straight cylinder, 143. Cone cylinder, 15. Post-stage recovery device, 2. Pretreatment system, 3. Water cutting furnace, 4. Curing furnace, 5. Conveyor chain. Detailed implementation manners

[0032] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Components such as component models, material names, connection structures, etc. that are not clearly described in this technical solution are regarded as common technical features disclosed in the prior art.

[0033] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] It should be noted that in the present invention, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0035] Embodiment

[0036] As Figures 1 to 4As shown in the figure, in this embodiment, a powder coating line facilitating color change is provided. The powder coating line facilitating color change includes a powder booth system 1. The powder booth system includes a powder supply chamber 11, a powder booth processing chamber 12, a powder spraying device 13, a cyclone recovery device 14, and a post-stage recovery device 15. The powder supply chamber 11 is connected to the powder spraying device 13. The cyclone recovery device 14 is connected to the powder booth processing chamber 12. The post-stage recovery device 15 is connected to the cyclone recovery device 14. The cyclone recovery device 14 is connected to the powder supply chamber 11. The powder supply chamber 11 includes a powder supply chamber body 113, a powder supply pump 111, a powder supply tank 112, and a powder suction pump 114. The powder supply pump 112 includes a detachable upper pump body 1121 and a lower pump body 1122. The powder supply pump 111 is connected to the powder supply chamber body 113 through a support frame. A powder outlet pipe is connected below the lower pump body 1122 of the powder supply pump 111. The powder supply pump 111 is connected to the cyclone recovery device 14. The powder supply pump 111 is used to send the powder recovered by the cyclone recovery device 14 into the powder supply tank 112. The powder supply tank 112 is connected to the powder supply chamber body 113. The powder supply tank 112 is used to accommodate the powder to be sprayed. The powder suction pump 114 is connected to the powder supply chamber body 113. The powder suction pump 114 is connected to the powder spraying device 13. The powder suction pump 114 is used to send the powder in the powder supply tank 112 into the powder spraying device 13. A hinge door 141 is provided on the cyclone recovery device 14.

[0037] As Figure 3 shown, the powder supply chamber 11 is a powder supply chamber with a single-sided opening. Except for one side opening, the other surfaces are all wall surfaces.

[0038] The powder spraying device 13 includes a spray gun 131. The spray gun 131 is connected to the powder suction pump 114 of the powder supply chamber 11 through a powder inlet pipe. The spray gun 131 is arranged on both sides of the powder booth processing chamber 12, and the workpiece is located between the spray guns 131 on both sides.

[0039] The powder spraying device 13 further includes a lift 132. The spray gun 131 is connected to the lift 132.

[0040] The cyclone recovery device 14 is connected to the powder booth processing chamber 12 through a pipeline. The post-stage recovery device 15 is connected to the cyclone recovery device 14 through a pipeline. The cyclone recovery device 14 is connected to the powder supply pump 111 of the powder supply chamber 11 through a pipeline.

[0041] The powder suction pump 114 and the powder supply chamber body 113 are connected through an X-Z direction moving component 115. The X-Z direction moving component 115 includes a Z-direction moving shaft and an X-direction moving shaft. The X-direction moving shaft is slidably connected to the Z-direction moving shaft. The X-direction moving shaft can move in the X direction relative to the Z-direction moving shaft. The Z-direction moving shaft is slidably connected to the side wall of the powder supply chamber body 113. The Z-direction moving shaft can move in the Z direction relative to the side wall of the powder supply chamber body 113. The form of the slidable connection can be a chute-slider fit. The specific connection form and working principle are prior arts and will not be elaborated here again.

[0042] The powder supply box 112 and the powder supply chamber body 113 are connected through an X-direction moving component 116. The X-direction moving component 116 includes an X-direction slideway. A slider slidably connected to the X-direction slideway is provided at the bottom of the powder supply box 112. The powder supply box 112 can move in the X direction relative to the X-direction slideway.

[0043] The upper pump body and the lower pump body are detachably connected through a limit pressing component 1123. The limit pressing component 1123 includes a sliding cover hinged to the lower pump body 1122. A protrusion is provided on the sliding cover. A clamping portion matching the protrusion is provided on the upper pump body 1121. When the protrusion is clamped with the clamping portion, the upper pump body 1121 and the lower pump body 1122 are buckled together. When the protrusion is separated from the clamping portion, the upper pump body 1121 and the lower pump body 1122 are separated.

[0044] The powder coating line further includes a pretreatment system 2, a water cutting furnace 3, a curing furnace 4, and a conveying chain 5. The pretreatment system 2, the water cutting furnace 3, the powder room system 1, and the curing furnace 4 are arranged in sequence. The conveying chain 5 is connected to the pretreatment system 2, the water cutting furnace 3, the powder room system 1, and the curing furnace 4 in sequence.

[0045] The cyclone recovery device 14 includes a straight cylinder 142 and a conical cylinder 143 detachably connected to the straight cylinder 142. The hinge door 141 is arranged on the side wall of the conical cylinder 143. The straight cylinder 142 and the conical cylinder 143 are detachably connected through fasteners such as bolts.

[0046] Hangers are arranged at intervals on the conveying chain 5. The hangers are used for hoisting workpieces and can adopt conventional hangers.

[0047] The pretreatment system 2 includes conventional equipment for the pretreatment process before spraying, such as degreasing equipment, water washing equipment, etc. The present application does not improve the pretreatment process.

[0048] The post-stage recovery device 15 includes a fan and a post-stage recovery chamber. The fan is arranged in the post-stage recovery chamber. The fan is used to ensure a certain negative pressure at the opening of the powder room system to avoid powder overflow.

[0049] The spray gun 131 is a high-voltage ion spray gun.

[0050] The working method of the above powder coating line facilitating color change is as follows:

[0051] When spraying, the workpieces to be sprayed are successively hung on the conveying chain 5. The workpieces to be sprayed enter the pretreatment system 2 in sequence for pretreatment, and the pretreated workpieces to be sprayed are sent into the water-cut furnace 3 for water-cut drying, and then sent into the powder booth system 1 for spraying. When the workpieces to be sprayed enter the powder booth system 1, the elevator 132 controls the position of the spray gun 131. After powder spraying, the cyclone recovery device 14 sucks in the remaining sprayed powder and sends it back to the powder supply chamber 11 of the powder booth system 1 (in addition to the recovered powder, the powder supply chamber 11 also includes new powder). The sprayed workpieces enter the curing furnace 4 for curing to form finished products.

[0052] When changing colors, the upper and lower pump bodies of the powder supply pump 112 can be disassembled, and the inside of the powder supply pump 112 can be cleaned. By means of the hinge door 141 provided on the cyclone recovery device 14, cleaning the inside of the cyclone recovery device 14 can avoid cross-contamination.

[0053] The above description of the embodiments is for the convenience of those of ordinary skill in the art to understand and use the invention. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present invention is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present invention as disclosed should be within the protection scope of the present invention.

Claims

1. A powder coating line facilitating color change, characterized in that, The powder coating line facilitating color change includes a powder booth system (1). The powder booth system includes a powder supply chamber (11), a powder booth processing chamber (12), a powder spraying device (13), a cyclone recovery device (14), and a post-stage recovery device (15). The powder supply chamber (11) is connected to the powder spraying device (13). The cyclone recovery device (14) is connected to the powder booth processing chamber (12). The post-stage recovery device (15) is connected to the cyclone recovery device (14). The cyclone recovery device (14) is connected to the powder supply chamber (11). The powder supply chamber (11) includes a powder supply chamber body (113), a powder supply pump (111), a powder supply tank (112), and a powder suction pump (114). The powder supply pump (112) includes a detachable upper pump body (1121) and a lower pump body (1122). The powder supply pump (111) is connected to the powder supply chamber body (113), the powder supply pump (111) is connected to the cyclone recovery device (14), and the powder supply pump (111) is used to send the powder recovered by the cyclone recovery device (14) into the powder supply tank (112). The powder supply tank (112) is connected to the powder supply chamber body (113), and the powder supply tank (112) is used to accommodate the powder to be sprayed. The powder suction pump (114) is connected to the powder supply chamber body (113), the powder suction pump (114) is connected to the powder spraying device (13), and the powder suction pump (114) is used to send the powder in the powder supply tank (112) into the powder spraying device (13). A hinge door (141) is provided on the cyclone recovery device (14).

2. The powder coating line facilitating color change according to claim 1, characterized in that The powder spraying device (13) includes a spray gun (131). The spray gun (131) is connected to the powder suction pump (114) of the powder supply chamber (11) through a powder inlet pipe. The spray gun (131) is arranged on both sides of the powder booth processing chamber (12), and the workpiece is located between the spray guns (131) on both sides.

3. The powder coating line facilitating color change according to claim 2, wherein, The powder spraying device (13) further includes a lift (132). The spray gun (131) is connected to the lift (132).

4. A powder coating line facilitating color change according to claim 1, characterized in that The cyclone recovery device (14) is connected to the powder booth processing chamber (12) through a pipeline. The post-stage recovery device (15) is connected to the cyclone recovery device (14) through a pipeline. The cyclone recovery device (14) is connected to the powder supply pump (111) of the powder supply chamber (11) through a pipeline.

5. A powder coating line facilitating color change according to claim 1, characterized in that, The powder suction pump (114) is connected to the powder supply chamber body (113) through an X-Z direction moving component (115).

6. The powder coating line facilitating color change according to claim 1, wherein, The powder supply tank (112) is connected to the powder supply chamber body (113) through an X direction moving component (116).

7. The powder coating line facilitating color change according to claim 1, wherein The upper pump body and the lower pump body are detachably connected through a limit pressing component (1123).

8. A powder coating line facilitating color change according to claim 1, characterized in that, The powder coating line further includes a pretreatment system (2), a water cutting furnace (3), a curing furnace (4), and a conveying chain (5). The pretreatment system (2), the water cutting furnace (3), the powder booth system (1), and the curing furnace (4) are arranged in sequence. The conveying chain (5) is connected to the pretreatment system (2), the water cutting furnace (3), the powder booth system (1), and the curing furnace (4) in sequence.

9. The powder coating line facilitating color change according to claim 1, wherein The cyclone recovery device (14) includes a straight cylinder (142) and a conical cylinder (143) detachably connected to the straight cylinder (142). The hinge door (141) is provided on the side wall of the conical cylinder (143).

10. A powder coating line facilitating color change according to claim 1, characterized in that, Hangers are provided at intervals on the conveying chain (5), and the hangers are used for hoisting workpieces.

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