A coil electrostatic powder spraying room

Abstract

The present invention discloses an electrostatic powder spraying room for a rolled plate, comprising: a spraying room main body, a spray gun, and an airflow system. The spraying room main body is provided with a rolling plate inlet and outlet for the rolling plate to enter and exit; the spray gun is arranged in the spraying room main body, and is used for spraying the rolled plate in the spraying room main body; the airflow system comprises at least one air inlet located on the non-spraying side of the rolled plate, and the airflow system can guide or drive the airflow to blow from the non-spraying side of the rolled plate to any one or more positions in the spraying room except the non-spraying side of the rolled plate, thereby preventing overspray powder from adhering to the non-spraying side of the rolled plate, and can effectively solve the pollution problem of overspray powder on the non-spraying surface of the rolled plate.

Description

Technical Field

[0001] The invention relates to the field of electrostatic powder spraying, in particular to a coil electrostatic powder spraying room. Background Art

[0002] At present, the exhaust mode of the coil electrostatic powder spraying room is generally arranged on the non-spraying side of the coil. This will cause the powder to float to the non-spraying side of the coil during the spraying process, which will easily cause more powder adhesion on the back and be difficult to effectively remove, causing difficulties for the subsequent spraying or process treatment of the non-spraying side of the coil.

[0003] In order to prevent the non-sprayed surface of the coil from absorbing overspray powder during the spraying process, contact isolation protection measures need to be adopted. Generally, the non-sprayed surface of the coil is protected and shielded by laminating, which requires additional laminating and de-laminating processes, so the efficiency is low and the cost is high.

[0004] In addition, edge wind curtains are also used to block excess powder from both sides of the sprayed substrate, but the actual isolation effect is not obvious. Instead, it will cause powder to fly everywhere and the cost is high. Powder will still adhere to the board surface that does not need powder spraying. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a coil electrostatic powder spraying room, which utilizes the exhaust airflow in the existing exhaust system, through a specific air inlet direction and airflow guidance, to effectively prevent the powder from being adsorbed and accumulated on the non-spraying surface of the coil.

[0006] According to the first aspect of the embodiment of the present invention, a roll plate electrostatic powder spraying room includes: a spraying room body, a spray gun group, and an airflow system. The spraying room body is provided with a roll plate inlet and outlet for the roll plate to enter and exit; the spray gun group is arranged in the spraying room body, and is used to spray the roll plate in the spraying room body; the airflow system includes at least one air inlet located on the non-spraying side of the roll plate, and the airflow system can guide or drive the airflow from the non-spraying side of the roll plate to any one or more positions in the spraying room body except the non-spraying side of the roll plate.

[0007] A coil electrostatic powder spraying room according to an embodiment of the present invention has at least the following beneficial effects: it reduces the powder falling to the non-spraying side of the coil, and can effectively reduce the adsorption and accumulation of powder on the non-spraying surface of the coil.

[0008] In some embodiments of the present invention, the airflow system includes an adjustable or fixed-width main air inlet located on the non-spraying side of the roll plate, so that the airflow system can draw in external air from the main air inlet to blow the airflow from the non-spraying side of the roll plate to any one or more positions in the main body of the spray room except the non-spraying side of the roll plate.

[0009] In some embodiments of the present invention, the airflow system can form high-speed airflow areas at the edges of the roll plate to reduce the occurrence of powder entering the non-spraying side of the roll plate through the edges of the roll plate.

[0010] In some embodiments of the present invention, the airflow system includes edge ducts with adjustable or fixed widths located at the edges of both sides of the rolling plate, and the high-speed airflow area is located at the edge ducts, thereby achieving a highly efficient isolation effect.

[0011] In some embodiments of the present invention, the edge air duct is configured to have an adjustable width to facilitate adjustment of the wind speed or air volume to meet different usage requirements.

[0012] In some embodiments of the present invention, the edge air duct is configured to have a non-adjustable width so as to be suitable for a spray chamber with corresponding wind speed or air volume requirements.

[0013] In some embodiments of the present invention, an edge air guide device is slidably or fixedly arranged at the side edge of the rolling plate, and a gap is provided between the edge air guide device and the side edge of the rolling plate to form an edge air duct with an adjustable or fixed width at the side edge of the rolling plate, thereby achieving the effect of narrowing the air duct.

[0014] In some embodiments of the present invention, the edge air guide device is slidably installed in the spray chamber, and the effect of adjusting the width of the edge air duct is achieved by sliding the position of the edge air guide device.

[0015] In some embodiments of the present invention, the edge air guide device is fixedly installed in the spray chamber, so that the width of the edge air duct is non-adjustable to be suitable for the spray chamber corresponding to the wind speed or air volume requirement.

[0016] In some embodiments of the present invention, the wind speed of the edge air duct is higher than the average wind speed of the roll plate inlet and outlet and the air inlet to form a high-speed airflow area and improve the isolation effect.

[0017] In some embodiments of the present invention, the wind speed of the edge wind duct is 0.6-40 m / sec, which can meet the isolation requirements.

[0018] In some embodiments of the present invention, the airflow system includes at least one main air exhaust port arranged on both sides of the spray gun group, and the main air exhaust port forms an air exhaust port gap in the spray booth body. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray booth body, so that the airflow of the airflow system can be discharged from the main air exhaust ports on both sides of the rear of the spray gun group to drive or guide the airflow to blow from the non-spraying side of the coil plate to the rear of the spray gun group, thereby achieving a better isolation effect.

[0019] In some embodiments of the present invention, the airflow system includes at least one rear main air exhaust port arranged at the rear of the spray gun group, and the rear main air exhaust port forms an air exhaust port gap in the spray chamber body. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray chamber body, so that the airflow of the airflow system can be discharged from the rear main air exhaust ports on both sides of the rear of the spray gun group to drive or guide the airflow to blow from the non-spraying side of the coil plate to the rear of the spray gun group, thereby achieving a better isolation effect.

[0020] The rear main air exhaust ports are arranged on both sides of the rear part of the spray gun, and the amount of powder deposited on the spray gun housing and the spray gun mounting bracket can be reduced through airflow.

[0021] In some embodiments of the present invention, the airflow system includes at least one side main air exhaust port arranged on both sides of the spray gun group, and the side main air exhaust port forms an air exhaust port gap in the spray booth body. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray booth body, so that the airflow of the airflow system can be discharged from the side main air exhaust ports on both sides of the spray gun group to drive or guide the airflow to blow from the non-spraying side of the coil plate to the two sides of the spray gun group, thereby achieving a better isolation effect.

[0022] In some embodiments of the present invention, at least one rear opening with an adjustable or fixed width is provided at the rear of the spray gun assembly, and the rear opening can allow air flow to enter or the spray gun assembly to enter and exit, thereby achieving an air supply function and facilitating the entry and exit of the spray gun assembly.

[0023] In some embodiments of the present invention, the rear opening is configured to have an adjustable width to facilitate adjustment of wind speed or air volume and to facilitate the entry and exit of spray guns of different specifications, and the rear opening can be closed to meet different usage requirements.

[0024] In some embodiments of the present invention, the rear opening is configured to have a non-adjustable width to meet set requirements for air volume entry or spray gun entry and exit.

[0025] In some embodiments of the present invention, the slit of the air exhaust port is parallel to the movement direction of the rolling plate, so as to achieve a better air exhaust effect.

[0026] In some embodiments of the present invention, auxiliary air inlets with adjustable or fixed widths are provided on both sides of the spray chamber body opposite to the spray gun group to achieve side air supply, which can form better air circulation in the spray chamber and reduce airflow dead corners.

[0027] In some embodiments of the present invention, the auxiliary air inlet is configured to have an adjustable width to facilitate adjustment of wind speed or air volume, and the auxiliary air inlet can be closed to meet different usage requirements.

[0028] In some embodiments of the present invention, the auxiliary air inlet is configured to have a non-adjustable width to meet set air volume inlet and outlet requirements or spray gun inlet and outlet requirements.

[0029] In some embodiments of the present invention, a roll plate side seam air blowing device is arranged at the side edge of the non-sprayed surface of the roll plate. The roll plate side seam air blowing device can blow air outward from the side edge of the non-sprayed surface of the roll plate, thereby forming a high-speed airflow zone at the side edge of the roll plate, thereby achieving a better isolation effect.

[0030] In some embodiments of the present invention, the airflow system includes an edge exhaust duct arranged at the side edge of the rolling plate, and the edge exhaust duct is provided with an exhaust duct inlet corresponding to the side edge of the rolling plate, which can extract overspray dust at the side edge of the rolling plate and form a high-speed airflow zone to achieve a better isolation effect.

[0031] In some embodiments of the present invention, a non-sprayed surface blowing device capable of blowing toward the side edge of the roll is arranged on the non-sprayed side of the roll to further reduce dust accumulation on the non-sprayed side of the roll.

[0032] In some embodiments of the present invention, there is a gap between the roll inlet and outlet, and an inlet and outlet sealing device is arranged at the roll inlet and outlet to reduce the entry of external dust into the spraying room or the overflow of dust in the spraying room.

[0033] In some embodiments of the present invention, the inlet and outlet sealing device comprises an air curtain sealing device, which achieves a better isolation effect by forming an air curtain.

[0034] In some embodiments of the present invention, the inlet and outlet sealing devices include mechanical contact sealing devices corresponding to the non-sprayed surface of the roll plate, forming a contact sealing structure to achieve the desired sealing effect.

[0035] In some embodiments of the present invention, the spray chamber body can allow the coil to be transported through horizontally, vertically or tilted, so that the spray gun group can spray the coil vertically, horizontally or tilted to meet different usage requirements.

[0036] In some embodiments of the present invention, the roll plate passes horizontally through the spray booth body.

[0037] In some embodiments of the present invention, the roll plate vertically passes through the spray booth body.

[0038] In some embodiments of the present invention, the spray booth body is composed of a combination of fixed panels or a combination of foldable / movable panels to realize a spray booth with a fixed structure or a deformable spray booth.

[0039] In some embodiments of the present invention, the spray booth body is composed of foldable / movable panels to achieve a deformable spray booth for easy cleaning.

[0040] In some embodiments of the present invention, the roll is conveyed horizontally, vertically, or obliquely through the spray chamber body, and the relative positional relationship between the spraying surface of the roll and the horizontal plane is but not limited to parallel, vertical, or at a spatial geometric angle to achieve different spraying effects.

[0041] In some embodiments of the present invention, the average wind speed at the roll inlet and outlet and the air inlet is 0.4-6 m / sec.

[0042] The attached figure explains.

[0043] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0044] Figure 1 It is a schematic diagram of the internal structure of the coil electrostatic powder spraying room of the first specific embodiment of the present invention when the main air inlet and the auxiliary air inlet are opened;

[0045] Figure 2 It is a schematic diagram of the internal structure of the coil electrostatic powder spraying room of the first specific embodiment of the present invention when the main air inlet and the auxiliary air inlet are closed;

[0046] Figure 3 It is a schematic diagram of the internal structure of a coil electrostatic powder spraying room according to a second specific embodiment of the present invention;

[0047] Figure 4 It is a schematic diagram of the internal structure of a coil electrostatic powder spraying room according to a third specific embodiment of the present invention;

[0048] Figure 5 A schematic diagram of the internal structure of a coil electrostatic powder spraying room according to a fourth specific embodiment of the present invention;

[0049] Figure 6 It is a schematic structural diagram of a coiled plate electrostatic powder spraying room when closed according to a fifth specific embodiment of the present invention;

[0050] Figure 7 It is a schematic structural diagram of a coiled plate electrostatic powder spraying room in a folded state according to a fifth specific embodiment of the present invention;

[0051] Figure 8 It is a schematic diagram of spraying when the coil moves horizontally according to a specific embodiment of the present invention;

[0052] Fig. 9 for Figure 8 Schematic diagram of the lateral structure;

[0053] Fig.10 It is a schematic diagram of spraying when the roll moves vertically according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0054] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0055] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0057] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0058] Reference Figures 1 to 10 According to an embodiment of the present invention, a coil electrostatic powder spraying room includes: a spraying room body 100, a spray gun group 200, and an airflow system. The spraying room body 100 is provided with a coil inlet and outlet 110 for allowing a coil 900 to enter and exit; the spray gun group 200 is arranged in the spraying room body 100, and is used to spray the coil 900 in the spraying room body 100; the airflow system includes at least one air inlet located on the non-spraying side of the coil 900, and the airflow system can guide or drive the airflow from the non-spraying side of the coil 900 to any one or more positions in the spraying room body 100 except the non-spraying side of the coil 900, thereby reducing the powder falling to the non-spraying side of the coil 900, and can effectively reduce the adsorption and accumulation of powder on the non-spraying surface of the coil.

[0059] Specifically, the airflow system can guide or drive the airflow from the non-spraying side of the roll plate 900 to any one or more positions in the spray chamber body 100 except the non-spraying side of the roll plate 900. The airflow system can guide or drive the airflow from the non-spraying side of the roll plate 900 to the front of the spraying side of the roll plate 900 or to the lateral position of the spraying side of the roll plate 900, thereby reducing the falling of powder to the non-spraying side of the roll plate 900.

[0060] In some embodiments of the present invention, the airflow system includes an adjustable or fixed-width main air inlet 310 located on the non-spraying side of the roll plate 900, so that the airflow system can inhale external air from the main air inlet 310 to blow the airflow from the non-spraying side of the roll plate 900 to any one or more positions in the spray room body 100 except the non-spraying side of the roll plate 900.

[0061] The main air inlet 310 has an adjustable width to facilitate closing or adjusting the air intake to meet different usage requirements.

[0062] Specifically, the width of the air duct plate of the main air inlet 310 can be adjusted by sliding.

[0063] The main air inlet 310 has a fixed width to be suitable for a spray booth with a corresponding air inlet volume requirement.

[0064] In addition, in the specific implementation process, the main air inlet 310 may not be configured, and the air input can be achieved by providing an active air supply device on the non-spraying side of the roll plate 900.

[0065] In some embodiments of the present invention, the airflow system can form high-speed airflow areas at the edges of the roll 900 to reduce the occurrence of powder entering the non-spraying side of the roll 900 through the edges of the roll 900 .

[0066] In the present invention, the high-speed airflow area can be achieved by narrowing the air duct, increasing the airflow injection port or increasing the airflow suction port, so that the airflow velocity at the edge positions on both sides of the rolling plate 900 is at least higher than the average wind speed of the inlet and outlet and the air inlet of the rolling plate 900, thereby achieving an effect similar to that of an air curtain.

[0067] In some embodiments of the present invention, the airflow system includes edge ducts 351 with adjustable or fixed widths located at the edges of both sides of the rolling plate 900, and the high-speed airflow area is located at the edge ducts 351, thereby achieving an efficient isolation effect.

[0068] In some embodiments of the present invention, the edge air duct 351 is configured to have an adjustable width to facilitate adjustment of the wind speed or air volume to meet different usage requirements.

[0069] In some embodiments of the present invention, the edge air duct 351 is configured to have a non-adjustable width to be suitable for a spray booth with corresponding wind speed or air volume requirements.

[0070] In some embodiments of the present invention, an edge air guide device 350 is slidably or fixedly arranged at the side edge position of the rolling plate 900, and there is a gap between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with an adjustable or fixed width at the side edge position of the rolling plate 900, thereby achieving the effect of narrowing the air duct.

[0071] In some embodiments of the present invention, the edge air guide device 350 is slidably installed in the spray booth, and the width of the edge air duct 351 is adjusted by sliding the position of the edge air guide device 350 .

[0072] In some embodiments of the present invention, the edge air guide device 350 is fixedly installed in the spray booth, so that the width of the edge air duct 351 is not adjustable, so as to be suitable for the spray booth with corresponding wind speed or air volume requirements.

[0073] In some embodiments of the present invention, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0074] In some embodiments of the present invention, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0075] In some embodiments of the present invention, the airflow system includes at least one main air exhaust port 320 arranged on both sides of the rear of the spray gun group 200. The main air exhaust port 320 forms an air exhaust port gap in the spray chamber body 100. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray chamber body 100, so that the airflow of the airflow system can be discharged from the main air exhaust port 320 on both sides of the rear of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the rear of the spray gun group 200, thereby achieving a better isolation effect.

[0076] Main air inlets 320 are arranged on both sides of the rear part of the spray gun, and the amount of powder deposited on the spray gun housing and the spray gun mounting bracket can be reduced through airflow.

[0077] Of course, in the specific implementation process, the main air outlet 320 may not be provided, and air exhaust can be achieved through air outlets at other positions.

[0078] In some embodiments of the present invention, the airflow system includes at least one rear main air exhaust port 330 arranged at the rear of the spray gun group 200, and the rear main air exhaust port 330 forms an air exhaust port gap in the spray chamber body 100. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray chamber body 100, so that the airflow of the airflow system can be discharged from the rear main air exhaust port 330 on both sides of the rear of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the rear of the spray gun group 200, thereby achieving a better isolation effect.

[0079] The rear main air inlets 330 are arranged on both sides of the rear part of the spray gun, and the amount of powder deposited on the spray gun housing and the spray gun mounting bracket can be reduced through airflow.

[0080] Specifically, the rear of the spray gun assembly 200 refers to the opposite direction of the spray gun spraying direction, that is, the spray gun spraying direction is set to the front of the spray gun assembly 200, which is different from the overall direction setting of the spray booth body 100.

[0081] Of course, in the specific implementation process, the rear main air exhaust port 330 may not be provided, and air exhaust can be achieved through air exhaust ports at other positions.

[0082] In some embodiments of the present invention, the airflow system includes at least one side main air exhaust port 340 arranged on both sides of the spray gun group 200, and the side main air exhaust port 340 forms an air exhaust port gap in the spray chamber body 100. The air exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray chamber body 100, so that the airflow of the airflow system can be discharged from the side main air exhaust port 340 on both sides of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the two sides of the spray gun group 200, thereby achieving a better isolation effect.

[0083] Of course, in the specific implementation process, the side main air exhaust port 340 may not be provided, and air exhaust can be achieved through air exhaust ports at other positions.

[0084] In some embodiments of the present invention, at least one rear opening 370 with an adjustable or fixed width is provided at the rear of the spray gun assembly 200. The rear opening 370 can provide air flow to enter or exit the spray gun assembly 200, thereby achieving an air supply function and facilitating the entry and exit of the spray gun assembly 200.

[0085] In some embodiments of the present invention, the rear opening 370 is configured to be adjustable in width to facilitate adjustment of wind speed or air volume and to facilitate the entry and exit of spray guns of different specifications, and the rear opening 370 can be closed to meet different usage requirements.

[0086] Specifically, the width can be adjusted by sliding the air duct plate with the rear opening 370 .

[0087] In some embodiments of the present invention, the rear opening 370 is configured to have a non-adjustable width to meet set requirements for air volume inlet and outlet or spray gun inlet and outlet.

[0088] Of course, in the specific implementation process, the rear opening 370 may not be provided, and the air or the spray gun may be in and out through openings at other positions.

[0089] In some embodiments of the present invention, the gap of the air exhaust port is parallel to the movement direction of the rolling plate 900, so as to achieve a better air exhaust effect.

[0090] Of course, in the specific implementation process, the gap of the exhaust port can also be set to be inclined relative to the movement direction of the rolling plate 900, which can also achieve the exhaust effect.

[0091] In some embodiments of the present invention, auxiliary air inlets 321 with adjustable or fixed widths are provided on both sides of the spray chamber body 100 opposite to the spray gun group 200 to achieve side air supply, thereby forming a better air circulation in the spray chamber and reducing airflow dead corners.

[0092] In some embodiments of the present invention, the auxiliary air inlet 321 is configured to be adjustable in width to facilitate adjustment of wind speed or air volume and to facilitate the entry and exit of spray guns of different specifications, and the auxiliary air inlet 321 can be closed to meet different usage requirements.

[0093] Specifically, the width of the air duct plate of the auxiliary air inlet 321 can be adjusted by sliding.

[0094] In some embodiments of the present invention, the auxiliary air inlet 321 is configured to have a non-adjustable width to meet set air volume inlet and outlet requirements or spray gun inlet and outlet requirements.

[0095] In some embodiments of the present invention, a roll plate edge seam blowing device 410 is disposed at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900, thereby forming a high-speed airflow zone at the side edge of the roll plate 900 to achieve a better isolation effect.

[0096] In some embodiments of the present invention, the airflow system includes an edge exhaust duct 360 arranged at the side edge of the rolling plate 900. The edge exhaust duct 360 is provided with an exhaust duct inlet 361 corresponding to the side edge of the rolling plate 900 to discharge dust from the side edge of the rolling plate 900, and can form a high-speed airflow zone to achieve a better isolation effect.

[0097] like Figure 4 , Figure 5 , Figure 6 As shown, in some embodiments of the present invention, an exhaust duct air inlet 361 and a side main exhaust duct 340 are configured to achieve a better internal exhaust dust removal effect; of course, in the specific implementation process, only the exhaust duct air inlet 361 or the side main exhaust duct 340 may be configured, such as only one group (two) of exhaust duct air inlets 361, or only one group (two or more) of side main exhaust duct 340 are configured, and the functions of the two air inlets are combined together, which can also achieve the original internal exhaust dust removal effect, which will not be described in detail here.

[0098] In some embodiments of the present invention, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce dust accumulation on the non-sprayed side of the roll 900 .

[0099] In some embodiments of the present invention, there is a gap between the roll inlet and outlet 110 and the roll 900, and an inlet and outlet sealing device 120 is arranged at the roll inlet and outlet 110 to reduce external dust from entering the spraying room or dust overflowing from the spraying room.

[0100] In some embodiments of the present invention, the inlet and outlet sealing device comprises an air curtain sealing device, which achieves a better isolation effect by forming an air curtain.

[0101] In some embodiments of the present invention, the inlet and outlet sealing devices include mechanical contact sealing devices corresponding to the non-sprayed surface of the roll plate 900, forming a contact sealing structure to achieve the desired sealing effect.

[0102] In some embodiments of the present invention, the spray chamber body 100 can allow the roll plate 900 to be transported horizontally, vertically or tilted, so that the spray gun group 200 can spray the roll plate 900 vertically, horizontally or tilted to meet different usage requirements.

[0103] like Figure 8 , Fig. 9 As shown, in some embodiments of the present invention, the roll plate 900 horizontally passes through the spray booth body 100 .

[0104] like Fig.10 As shown, in some embodiments of the present invention, the roll plate 900 vertically passes through the spray booth body 100 .

[0105] In some embodiments of the present invention, the spray booth body 100 is composed of a combination of fixed panels or a combination of foldable / movable panels to realize a spray booth with a fixed structure or a deformable spray booth.

[0106] like Figure 6 , Figure 7 As shown, in some embodiments of the present invention, the spray booth body 100 is composed of foldable / movable panels to achieve a deformable spray booth for easy cleaning.

[0107] In some embodiments of the present invention, the roll 900 passes through the spray chamber body 100 in a horizontal, vertical, or inclined manner, and the relative position relationship between the spraying surface of the roll 900 and the horizontal plane is but not limited to parallel, vertical, or at a spatial geometric angle (at an angle to each other) to achieve different spraying effects.

[0108] In some embodiments of the present invention, the average wind speed of the roll inlet and outlet 110 and the air inlet is 0.4-6 m / sec.

[0109] The embodiments of the present invention are described in detail below:

[0110] Embodiment 1

[0111] like Figure 1 , Figure 2 As shown, in this embodiment, the main air inlet 310 and the auxiliary air inlet 321 are set on the side of the spray chamber body 100 corresponding to the non-spraying side of the rolling plate 900. The main air inlet 310 and the auxiliary air inlet 321 are both adjustable width air inlets to deliver external air flow and adjust the air volume.

[0112] In this embodiment, a main exhaust port 320 is provided on one side of the spray booth body 100 corresponding to the spraying side of the roll plate 900 (and the rear of the spray gun group 200). The main exhaust port 320 forms an exhaust port gap in the spray booth body 100. The exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray booth body 100, so that the airflow of the airflow system can be discharged from the main exhaust port 320 on both sides of the rear of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the roll plate 900 to the rear of the spray gun group 200, thereby achieving a better isolation effect.

[0113] In this embodiment, the air outlet gap formed by the main air outlet 320 in the spray chamber body 100 is parallel to the movement direction of the rolling plate 900, which can achieve a better air exhaust effect.

[0114] In this embodiment, an edge air guide device 350 is slidably provided at the side edge of the rolling plate 900, and a gap is provided between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with adjustable width at the side edge of the rolling plate 900, thereby achieving the effect of narrowing the air duct and adjusting the air volume.

[0115] In this embodiment, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0116] In this embodiment, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0117] Through the above structure, external air can enter the spraying room through the main air inlet 310 and the auxiliary air inlet 321. The air entering through the auxiliary air inlet 321 can be blown to the main exhaust port 320, so as to achieve the effect of discharging excess dust from the spraying room. The air entering through the main air inlet 310 is transported from the non-spraying side of the roll plate 900 to the spraying side of the roll plate 900 through the edge air duct 351, and finally discharged through the main exhaust port 320, thereby reducing the situation where dust enters the non-spraying side of the roll plate 900.

[0118] In this embodiment, an edge exhaust duct 360 is provided in the edge air guide device 350. The edge exhaust duct 360 is provided with an exhaust duct air inlet 361 corresponding to the side edge of the rolling plate 900. The oversprayed dust at the side edge of the rolling plate 900 can be extracted, and a high-speed airflow zone can be formed to achieve a better isolation effect.

[0119] In this embodiment, a roll plate edge seam blowing device 410 is arranged at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900 and extract the air flow through the exhaust pipe inlet 361, thereby forming a high-speed airflow area at the side edge of the roll plate 900 to achieve a better isolation effect.

[0120] Through the above structure, the airflow blown out by the roll plate side seam blowing device 410 can pass through the side edge of the roll plate 900 and then enter the air inlet 361 of the exhaust pipe to be discharged, forming an air curtain or air screen to achieve a better isolation effect.

[0121] In this embodiment, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce the accumulation of oversprayed dust on the non-sprayed side of the roll 900 .

[0122] Embodiment 2

[0123] like Figure 3 As shown, in this embodiment, the main air inlet 310 and the auxiliary air inlet 321 are set on the side of the spray chamber body 100 corresponding to the non-spraying side of the rolling plate 900. The main air inlet 310 and the auxiliary air inlet 321 are both adjustable width air inlets to deliver external air flow and adjust the air volume.

[0124] In this embodiment, a main exhaust port 320 is provided on the side of the spray booth body 100 corresponding to the spraying side of the roll plate 900 (and the rear of the spray gun group 200). The main exhaust port 320 forms an exhaust port gap in the spray booth body 100. The exhaust port gap can be set to full-height range exhaust or local area exhaust inside the spray booth body 100, so that the airflow of the airflow system can be discharged from the main exhaust port 320 on both sides of the rear of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the roll plate 900 to the rear of the spray gun group 200, thereby achieving a better isolation effect.

[0125] In this embodiment, the air outlet gap formed by the rear main air outlet 330 in the spray booth body 100 is parallel to the movement direction of the rolling plate 900, which can achieve a better air exhaust effect.

[0126] In this embodiment, the rear main air inlet 330 is located in the middle of the spray booth body 100 and forms a V-shaped flow guide structure, which has a better air extraction effect.

[0127] In this embodiment, an edge air guide device 350 is slidably provided at the side edge of the rolling plate 900, and a gap is provided between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with adjustable width at the side edge of the rolling plate 900, thereby achieving the effect of narrowing the air duct and adjusting the air volume.

[0128] In this embodiment, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0129] In this embodiment, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0130] Through the above structure, external air can enter the spraying room through the main air inlet 310 and the auxiliary air inlet 321, and the air entering through the auxiliary air inlet 321 can be blown to the rear main air outlet 330, so as to achieve the effect of exhausting the excess overspray dust in the spraying room. The air entering through the main air inlet 310 is transported from the non-spraying side of the roll plate 900 to the spraying side of the roll plate 900 through the edge air duct 351, and finally discharged through the rear main air outlet 330, thereby reducing the overspray dust from entering the non-spraying side of the roll plate 900.

[0131] In this embodiment, an edge exhaust duct 360 is provided in the edge air guide device 350. The edge exhaust duct 360 is provided with an exhaust duct air inlet 361 corresponding to the side edge of the rolling plate 900 to discharge overspray dust from the side edge of the rolling plate 900, and can form a high-speed airflow zone to achieve a better isolation effect.

[0132] In this embodiment, a roll plate edge seam blowing device 410 is arranged at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900 and extract the air flow through the exhaust pipe inlet 361, thereby forming a high-speed airflow area at the side edge of the roll plate 900 to achieve a better isolation effect.

[0133] Through the above structure, the airflow blown out by the roll plate side seam blowing device 410 can pass through the side edge of the roll plate 900 and then enter the air inlet 361 of the exhaust pipe to be discharged, forming an air curtain or air screen to achieve a better isolation effect.

[0134] In this embodiment, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce dust accumulation on the non-sprayed side of the roll 900 .

[0135] Embodiment 3

[0136] like Figure 4 As shown, in this embodiment, the side of the spray chamber body 100 corresponding to the non-spraying side of the roll plate 900 is set at the main air inlet 310, and the main air inlet 310 is an adjustable width air inlet to deliver external airflow and adjust the air volume.

[0137] In this embodiment, side main exhaust ports 340 are provided on both sides of the spray gun group 200, and the side main exhaust ports 340 form exhaust port gaps in the spray booth body 100. The exhaust port gaps can be set to full-height range exhaust or local area exhaust inside the spray booth body 100, so that the airflow of the airflow system can be discharged from the side main exhaust ports 340 on both sides of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the two sides of the spray gun group 200, thereby achieving a better isolation effect.

[0138] In this embodiment, the air outlet gap formed by the side main air outlet 340 in the spray booth body 100 is parallel to the movement direction of the rolling plate 900, which can achieve a better air exhaust effect.

[0139] In this embodiment, an edge air guide device 350 is slidably provided at the side edge of the rolling plate 900, and a gap is provided between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with adjustable width at the side edge of the rolling plate 900, thereby achieving the effect of narrowing the air duct and adjusting the air volume.

[0140] In this embodiment, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0141] In this embodiment, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0142] Through the above structure, external air can enter the spraying room through the main air inlet 310. The air entering through the main air inlet 310 is transported from the non-spraying side of the roll plate 900 to the spraying side of the roll plate 900 through the edge air duct 351, and finally discharged through the rear main exhaust port 340, thereby reducing the situation where dust enters the non-spraying side of the roll plate 900.

[0143] In this embodiment, an edge exhaust duct 360 is provided in the edge air guide device 350. The edge exhaust duct 360 is provided with an exhaust duct air inlet 361 corresponding to the side edge of the rolling plate 900 to discharge overspray dust from the side edge of the rolling plate 900, and can form a high-speed airflow zone to achieve a better isolation effect.

[0144] In this embodiment, a roll plate edge seam blowing device 410 is arranged at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900 and extract the air flow through the exhaust pipe inlet 361, thereby forming a high-speed airflow area at the side edge of the roll plate 900 to achieve a better isolation effect.

[0145] Through the above structure, the airflow blown out by the roll plate side seam blowing device 410 can pass through the side edge of the roll plate 900 and then enter the air inlet 361 of the exhaust pipe to be discharged, forming an air curtain or air screen to achieve a better isolation effect.

[0146] In this embodiment, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce the accumulation of oversprayed dust on the non-sprayed side of the roll 900 .

[0147] In this embodiment, the rear opening 370 is not provided, and air enters or exits the spray gun through openings at other positions.

[0148] Embodiment 4

[0149] like Figure 5 As shown, in this embodiment, the side of the spray chamber body 100 corresponding to the non-spraying side of the roll plate 900 is set at the main air inlet 310, and the main air inlet 310 is an adjustable width air inlet to deliver external airflow and adjust the air volume.

[0150] In this embodiment, side main exhaust ports 340 are provided on both sides of the spray gun group 200, and the side main exhaust ports 340 form exhaust port gaps in the spray booth body 100. The exhaust port gaps can be set to full-height range exhaust or local area exhaust inside the spray booth body 100, so that the airflow of the airflow system can be discharged from the side main exhaust ports 340 on both sides of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the two sides of the spray gun group 200, thereby achieving a better isolation effect.

[0151] In this embodiment, the air outlet gap formed by the side main air outlet 340 in the spray booth body 100 is parallel to the movement direction of the rolling plate 900, which can achieve a better air exhaust effect.

[0152] In this embodiment, an edge air guide device 350 is slidably provided at the side edge of the rolling plate 900, and a gap is provided between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with adjustable width at the side edge of the rolling plate 900, thereby achieving the effect of narrowing the air duct and adjusting the air volume.

[0153] In this embodiment, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0154] In this embodiment, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0155] Through the above structure, external air can enter the spraying room through the main air inlet 310. The air entering through the main air inlet 310 is transported from the non-spraying side of the roll plate 900 to the spraying side of the roll plate 900 through the edge air duct 351, and finally discharged through the rear main exhaust port 340, thereby reducing the situation where dust enters the non-spraying side of the roll plate 900.

[0156] In this embodiment, an edge exhaust duct 360 is provided in the edge air guide device 350. The edge exhaust duct 360 is provided with an exhaust duct air inlet 361 corresponding to the side edge of the rolling plate 900 to discharge dust from the side edge of the rolling plate 900, and can form a high-speed airflow zone to achieve a better isolation effect.

[0157] In this embodiment, a roll plate edge seam blowing device 410 is arranged at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900 and extract the air flow through the exhaust pipe inlet 361, thereby forming a high-speed airflow area at the side edge of the roll plate 900 to achieve a better isolation effect.

[0158] Through the above structure, the airflow blown out by the roll plate side seam blowing device 410 can pass through the side edge of the roll plate 900 and then enter the air inlet 361 of the exhaust pipe to be discharged, forming an air curtain or air screen to achieve a better isolation effect.

[0159] In this embodiment, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce the accumulation of oversprayed dust on the non-sprayed side of the roll 900 .

[0160] In this embodiment, a rear opening 370 with adjustable width is set at the rear of the spray gun group 200. The rear opening 370 can provide air flow into the spraying room, or provide the spray gun group 200 with entry and exit, thereby achieving the air intake function and facilitating the entry and exit of the spray gun group 200.

[0161] Specifically, the airflow entering through the rear opening 370 can pass through the spray gun assembly 200 and then be discharged through the side main air outlet 340, thereby achieving the effect of cleaning the dust on the spray gun or the spray gun stand and reducing the accumulation of dust on the spray gun or the spray gun stand.

[0162] Embodiment 5

[0163] like Figure 6 , Figure 7 As shown, in this embodiment, the side of the spray chamber body 100 corresponding to the non-spraying side of the roll plate 900 is set at the main air inlet 310, and the main air inlet 310 is an adjustable width air inlet to deliver external airflow and adjust the air volume.

[0164] In this embodiment, side main exhaust ports 340 are provided on both sides of the spray gun group 200, and the side main exhaust ports 340 form exhaust port gaps in the spray booth body 100. The exhaust port gaps can be set to full-height range exhaust or local area exhaust inside the spray booth body 100, so that the airflow of the airflow system can be discharged from the side main exhaust ports 340 on both sides of the spray gun group 200, so as to drive or guide the airflow to blow from the non-spraying side of the coil 900 to the two sides of the spray gun group 200, thereby achieving a better isolation effect.

[0165] In this embodiment, the air outlet gap formed by the side main air outlet 340 in the spray booth body 100 is parallel to the movement direction of the rolling plate 900, which can achieve a better air exhaust effect.

[0166] In this embodiment, an edge air guide device 350 is slidably provided at the side edge of the rolling plate 900, and a gap is provided between the edge air guide device 350 and the side edge of the rolling plate 900 to form an edge air duct 351 with adjustable width at the side edge of the rolling plate 900, thereby achieving the effect of narrowing the air duct and adjusting the air volume.

[0167] In this embodiment, the wind speed of the edge air duct 351 is higher than the average wind speed of the roll plate inlet and outlet 110 and the air inlet, so as to form a high-speed airflow area and improve the isolation effect.

[0168] In this embodiment, the wind speed of the edge wind duct 351 is 0.6-40 m / sec, which can meet the isolation requirements.

[0169] Through the above structure, external air can enter the spraying room through the main air inlet 310. The air entering through the main air inlet 310 is transported from the non-spraying side of the roll plate 900 to the spraying side of the roll plate 900 through the edge air duct 351, and finally discharged through the rear main exhaust port 340, thereby reducing the situation where overspray dust enters the non-spraying side of the roll plate 900.

[0170] In this embodiment, an edge exhaust duct 360 is provided in the edge air guide device 350. The edge exhaust duct 360 is provided with an exhaust duct air inlet 361 corresponding to the side edge of the rolling plate 900 to discharge dust from the side edge of the rolling plate 900, and can form a high-speed airflow zone to achieve a better isolation effect.

[0171] In this embodiment, a roll plate edge seam blowing device 410 is arranged at the side edge of the roll plate 900. The roll plate edge seam blowing device 410 can blow air outward from the side edge of the roll plate 900 and extract the air flow through the exhaust pipe inlet 361, thereby forming a high-speed airflow area at the side edge of the roll plate 900 to achieve a better isolation effect.

[0172] Through the above structure, the airflow blown out by the roll plate side seam blowing device 410 can pass through the side edge of the roll plate 900 and then enter the air inlet 361 of the exhaust pipe to be discharged, forming an air curtain or air screen to achieve a better isolation effect.

[0173] In this embodiment, a non-sprayed surface blowing device 420 capable of blowing toward the side edge of the roll 900 is disposed on the non-sprayed side of the roll 900 to further reduce the accumulation of oversprayed dust on the non-sprayed side of the roll 900 .

[0174] In this embodiment, a rear opening 370 with adjustable width is set at the rear of the spray gun group 200. The rear opening 370 can provide air flow into the spraying room, or provide the spray gun group 200 with entry and exit, thereby achieving the air intake function and facilitating the entry and exit of the spray gun group 200.

[0175] Specifically, the airflow entering through the rear opening 370 can pass through the spray gun group 200 and then be discharged through the side main exhaust port 340, thereby achieving the effect of cleaning the dust on the spray gun or the spray gun stand and reducing the accumulation of overspray dust on the spray gun or the spray gun stand.

[0176] In this embodiment, the spray booth body 100 is composed of foldable / movable panels to achieve a deformable spray booth for easy cleaning.

[0177] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A coil electrostatic powder spraying room, characterized in that: include: A spraying room body (100), wherein the spraying room body (100) is provided with a plate rolling inlet and outlet (110) capable of allowing the plate rolling (900) to enter and exit; a spray gun assembly (200), the spray gun assembly (200) being arranged in the spray chamber body (100) and being used for spraying the roll plate (900) in the spray chamber body (100); an air flow system, the air flow system being capable of guiding or driving the air flow to blow from the non-spraying side of the rolling plate (900) to any one or more positions in the spraying room body (100) other than the non-spraying side of the rolling plate (900), the air flow system comprising at least one air inlet located on the non-spraying side of the rolling plate (900); The airflow system is capable of forming high-speed airflow zones at the edge positions on both sides of the rolling plate (900); The airflow system comprises adjustable edge air ducts (351) located at the edge positions of both sides of the rolling plate (900), and the high-speed airflow area is located at the edge air ducts (351); An edge air guide device (350) is slidably provided at the side edge of the rolling plate (900), and a gap is provided between the edge air guide device (350) and the side edge of the rolling plate (900), so as to form an adjustable edge air duct (351) at the side edge of the rolling plate (900); The airflow system comprises at least one side main air exhaust port (340) arranged on both sides of the spray gun group (200), the side main air exhaust port (340) forming an air exhaust port gap in the spray booth body (100), and the air exhaust port gap can be set to exhaust air in the full height range or in a local area inside the spray booth body (100); At least one rear opening (370) with an adjustable or fixed width is arranged at the rear of the spray gun assembly (200), and the rear opening (370) is capable of allowing airflow to enter and exit.

2. A coil electrostatic powder spraying room according to claim 1, characterized in that: The airflow system comprises a main air inlet (310) with an adjustable or fixed width located on the non-spraying side of the roll plate (900).

3. The coil electrostatic powder spraying room according to claim 1, characterized in that: The wind speed of the edge wind duct (351) is higher than the average wind speed of the roll plate inlet and outlet (110) and the air inlet.

4. The coil electrostatic powder spraying room according to claim 1, characterized in that: The wind speed of the edge wind channel (351) is 0.6-40 m / sec.

5. The coil electrostatic powder spraying room according to claim 1, characterized in that: The airflow system comprises at least one main air exhaust port (320) arranged on both sides of the rear part of the spray gun group (200), wherein the main air exhaust port (320) forms an air exhaust port gap in the spray booth body (100), and the air exhaust port gap can be set to exhaust air in the full height range or in a local area inside the spray booth body (100).

6. The coil electrostatic powder spraying room according to claim 1, characterized in that: The airflow system comprises at least one rear main air exhaust port (330) arranged at the rear of the spray gun group (200), wherein the rear main air exhaust port (330) forms an air exhaust port gap in the spray booth body (100), and the air exhaust port gap can be set to exhaust air in a full-height range or in a local area inside the spray booth body (100).

7. A coil electrostatic powder spraying room according to claim 5 or 6, characterized in that: The air exhaust vent gap is parallel to the movement direction of the rolling plate (900).

8. A coil electrostatic powder spraying room according to claim 5 or 6, characterized in that: Auxiliary air inlets (321) with adjustable or fixed widths are arranged on both sides of the spray chamber body (100) and are opposite to the spray gun group (200).

9. The coil electrostatic powder spraying room according to claim 1, characterized in that: A roll plate side seam air blowing device (410) is arranged at the side edge of the roll plate (900), and the roll plate side seam air blowing device (410) is capable of blowing air outward from the side edge of the roll plate (900).

10. A coil electrostatic powder spraying room according to claim 1 or 9, characterized in that: The airflow system comprises an edge exhaust pipe (360) arranged at a side edge of the rolling plate (900), and the edge exhaust pipe (360) is provided with an exhaust pipe air inlet (361) corresponding to the side edge of the rolling plate (900).

11. The coil electrostatic powder spraying room according to claim 1, characterized in that: A non-sprayed surface air blowing device (420) capable of blowing toward the side edge of the roll plate (900) is arranged on the non-sprayed side of the roll plate (900).

12. The coil electrostatic powder spraying room according to claim 1, characterized in that: There is a gap between the roll plate inlet and outlet (110) and the roll plate (900), and an inlet and outlet sealing device (120) is arranged at the roll plate inlet and outlet (110).

13. The coil electrostatic powder spraying room according to claim 12, characterized in that: The inlet and outlet sealing device comprises an air curtain sealing device.

14. The coil electrostatic powder spraying room according to claim 12, characterized in that: The inlet and outlet sealing device comprises a mechanical contact sealing device corresponding to the non-sprayed surface of the roll plate (900).

15. The coil electrostatic powder spraying room according to claim 1, characterized in that: The spray chamber body (100) can allow the coil (900) to be transported through in a horizontal, vertical or inclined manner, so that the spray gun group (200) can spray the coil (900) in a vertical, horizontal or inclined manner.

16. The coil electrostatic powder spraying room according to claim 1, characterized in that: The spray booth body (100) is composed of a combination of fixed panels or a combination of foldable / movable panels.

17. The coil electrostatic powder spraying room according to claim 1, characterized in that: The plate roll (900) passes through the spray chamber body (100) in a horizontal, vertical, or inclined manner, and the relative positional relationship between the spraying surface of the plate roll (900) and the horizontal plane is, but not limited to, parallel, vertical, or at a spatial geometric angle.

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