Thick edge reduction device for electrostatic powder spraying

Abstract

The utility model provides a thick edge reduction device for electrostatic powder spraying, and belongs to the technical field of machinery. The problem that the thick edge reduction effect is insufficient in the prior art is solved. The thick edge reduction device for electrostatic powder spraying comprises a spraying chamber, a spraying gun, a shielding roller, a driving part and a base, an inlet and an outlet are formed in the two ends of the spraying chamber respectively, the spraying gun and the shielding roller are both arranged in the spraying chamber, the base is fixedly connected to the outer side of the outlet, and the driving part is fixedly connected to the base. The driving piece is in transmission connection with the shielding roller, and the driving piece can drive the shielding roller to rotate in the circumferential direction. The device has the advantages that the thick edge reduction effect is good, the coating uniformity and the product quality are improved, and the position of the trimming baffle can be flexibly adjusted.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a thick edge reducing device for powder electrostatic spraying. Background Art

[0002] The production of color-coated plates is a complex process that combines metal material processing and surface treatment technology. The metal coil is used as the base material, and the powder electrostatic spraying process is used to give it rich colors and excellent anti-corrosion and weathering properties.

[0003] When metal coils are subjected to electrostatic powder spraying, the edge thickening problem is a common technical challenge that needs to be solved. Traditionally, a shielding roller is set under the edge of the metal coil. Although the shielding roller can absorb some of the excess powder accumulated on the edge of the metal coil, its effect is limited. As the amount of powder absorbed by the shielding roller gradually increases, the adsorption capacity also decreases, the thick edge reduction effect is insufficient, the coating uniformity is insufficient, and the production quality is affected. Utility Model Content

[0004] The utility model aims to solve the above problems in the prior art and provide a thick edge reduction device for electrostatic powder spraying which can improve production quality.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A thick edge reduction device for powder electrostatic spraying, comprising a spray chamber, a spray gun, a shielding roller, a driving member and a base, wherein an inlet and an outlet are respectively provided at both ends of the spray chamber, the spray gun and the shielding roller are both arranged in the spray chamber, the base is fixedly connected to the outside of the outlet and the driving member is fixedly connected to the base, the driving member is transmission-connected to the shielding roller and the driving member can drive the shielding roller to rotate circumferentially, and is characterized in that it also comprises a longitudinal adjustment component, a transverse adjustment component and a trimming baffle, the longitudinal adjustment component is arranged on the outside of the driving member, the longitudinal adjustment component is fixedly connected to the base and the longitudinal adjustment component can adjust the height position of the trimming baffle, the transverse adjustment component is fixedly connected to the longitudinal adjustment component and the transverse adjustment component can adjust the horizontal position of the trimming baffle, the trimming baffle is L-shaped and the inner end of the trimming baffle is fixedly connected to the transverse adjustment component.

[0007] The thick edge reduction device for powder electrostatic spraying is based on the shielding roller adsorbing part of the excess powder on the edge of the metal coil, and a trimming baffle is arranged at the outlet. The L-shaped trimming baffle fits the edge area of ​​the metal coil. As the metal coil is continuously conveyed toward the outlet, the trimming baffle can effectively disperse and clean the remaining powder accumulation on the edge of the metal coil, improve the problem of limited adsorption capacity of the shielding roller, and improve the uniformity of the coating and the quality of the product. The longitudinal adjustment component is used to adjust the height position of the trimming baffle so that it can move up and down, and the transverse adjustment component is used to adjust the horizontal position of the trimming baffle so that it can move left and right. Therefore, the position of the trimming baffle can be flexibly adjusted according to the actual thickness, width, position and other factors of the metal coil to ensure that it fits the edge of the metal coil with higher flexibility.

[0008] In the above-mentioned thick edge reduction device for powder electrostatic spraying, the longitudinal adjustment assembly includes a fixed cylinder, a vertical rod and a bolt. The fixed cylinder is fixedly connected to the base, the vertical rod is inserted into the fixed cylinder, and the bolt is passed through the outer side of the upper part of the fixed cylinder and tightening the bolt can fix the vertical rod to the fixed cylinder.

[0009] The fixed cylinder serves as the basic supporting structure of the longitudinal adjustment component, ensuring the stability of the entire adjustment component. The vertical rod is inserted into the fixed cylinder to achieve the freedom of movement in the up and down directions, so that the height of the trimming baffle can be accurately adjusted according to the thickness of the metal coil or the specific requirements of the production line to achieve the best fitting effect. The bolt is the key element of adjustment. The position of the vertical rod in the fixed cylinder is fixed by tightening the bolt, and the position of the vertical rod in the fixed cylinder is adjusted by loosening the bolt, thereby realizing the height adjustment of the vertical rod and the trimming baffle. The operation is simple and direct.

[0010] In the above-mentioned thick edge reduction device for powder electrostatic spraying, the lateral adjustment assembly includes a guide cylinder, a cross bar, and a positioning adjustment assembly. The guide cylinder is laterally fixed to the upper end of the vertical rod, the cross bar is axially inserted into the guide cylinder, and the cross bar and the guide cylinder are fixedly connected by the positioning adjustment assembly, and the above-mentioned trimming baffle is fixedly connected to the inner end of the cross bar.

[0011] The guide cylinder guides the movement of the cross bar, ensuring that the cross bar can only move in the horizontal direction, which increases the stability and accuracy during adjustment. The cross bar serves as the direct supporting structure of the trimming baffle. The left and right movement of the cross bar can realize the horizontal position adjustment of the trimming baffle to adapt to the edges of metal coils of different widths. The positioning adjustment component is the key component connecting the cross bar and the guide cylinder. After the cross bar is adjusted to the appropriate position, the positioning adjustment component is used to fix the cross bar and the guide cylinder, so that the trimming baffle is stably positioned in the appropriate position. According to actual conditions, the positioning adjustment component can be a threaded mechanism, a locking handle or other types of positioning locking devices.

[0012] In the above-mentioned thick edge reduction device for powder electrostatic spraying, the positioning adjustment component includes a positioning hole opened on the inner side of the guide cylinder, a spring connected to the positioning hole, a round ball connected to the outer end of the spring, and a positioning groove recessed on the outer side of the cross bar. The positioning groove is hemispherical, and the number of the positioning grooves is several. The positioning grooves are arranged equidistantly along the axial direction of the cross bar. When any positioning groove is opposite to the positioning hole, under the action of the spring elastic force, the round ball has a tendency to embed into the positioning groove.

[0013] The locating hole provides space for the spring and the ball to connect and move. The spring provides elastic force for the ball. When the horizontal position of the cross bar is adjusted, the ball is pressed back into the locating hole and the spring is in a compressed state. When the position of the cross bar is adjusted to any locating groove and the locating hole, the restoring force of the spring pushes the ball out until the ball is embedded in the locating groove, so that the cross bar is locked and connected with the guide cylinder, which is easy to adjust and has a stable connection.

[0014] In the above-mentioned thick edge reduction device for electrostatic powder spraying, the number of the bolts is several, and the several bolts are arranged in an array along the circumference of the fixing tube.

[0015] The provision of a plurality of bolts further increases the stability of the vertical rod positioning, avoids the deflection or looseness problems that may be caused by single-point fixation, and makes the vertical rod more firmly fixed in the vertical direction.

[0016] In the above-mentioned thick edge reduction device for electrostatic powder spraying, the fixing tube has penetrating threaded holes, the number of the threaded holes is consistent with the number of bolts, and a plurality of bolts are threadedly connected to the plurality of threaded holes respectively.

[0017] By arranging through threaded holes on the fixing cylinder that match the number of bolts, a reliable connection between the bolts and the fixing cylinder is achieved, and the threaded connection is also convenient for installation and maintenance.

[0018] In the above-mentioned thick edge reduction device for powder electrostatic spraying, the driving part includes a motor, a transmission belt and a driven wheel. The motor is fixedly connected to the base, the driven wheel is fixedly connected to the end of the shielding roller, and the transmission belt is sleeved on the outside of the transmission wheel and the output shaft of the motor and driven by the motor, the transmission belt drives the driven wheel to rotate.

[0019] The motor drives the transmission belt to rotate, and the transmission belt drives the driven wheel to rotate, so that the driven wheel drives the shielding roller to rotate, so that the shielding roller can continuously absorb the powder accumulated on the edge of the metal coil.

[0020] The thick edge reduction device for electrostatic powder spraying also includes a support frame, which is arranged at both ends of the shielding roller, the support frame is fixedly connected to the spraying chamber, and the shielding roller is rotatably connected to the support frame.

[0021] The support frame provides a stable suspension and rotation fulcrum for the shielding roller, ensuring that the shielding roller can rotate circumferentially under the drive of the driving member while also ensuring the stable axial positioning of the shielding roller.

[0022] Compared with the prior art, the thick edge reduction device for powder electrostatic spraying can effectively disperse and clean the remaining powder accumulation on the edge of the metal coil by setting the trimming baffle, improve the problem of limited adsorption capacity of the shielding roller, have a good thick edge reduction effect, and improve the uniformity of the coating and the quality of the product; the longitudinal adjustment component is used to adjust the height position of the trimming baffle, and the transverse adjustment component is used to adjust the horizontal position of the trimming baffle, so that the position of the trimming baffle can be flexibly adjusted according to the actual thickness, width, position and other factors of the metal coil, to ensure that it fits the edge of the metal coil, with higher flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the thick edge reduction device of the powder electrostatic spraying;

[0024] Figure 2 It is a schematic diagram of the cross-sectional structure of the thick edge reduction device for powder electrostatic spraying.

[0025] In the figure, 1. vertical rod; 2. horizontal rod; 3. guide cylinder; 4. support frame; 5. trimming baffle; 6. spraying room; 7. spray gun; 8. metal coil; 9. outlet; 10. shielding roller; 11. driven wheel; 12. transmission belt; 13. base; 14. fixing cylinder; 15. bolt; 16. motor; 17. positioning groove; 18. positioning hole; 19. spring; 20. ball. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0029] like Figure 1 As shown in FIG. 2 , the thick edge reduction device for electrostatic powder spraying includes a spray chamber 6, a spray gun 7, a shielding roller 10, a driving member and a base 13. An inlet and an outlet 9 are respectively provided at both ends of the spray chamber 6. The spray gun 7 and the shielding roller 10 are both arranged in the spray chamber 6. The base 13 is fixedly connected to the outer side of the outlet 9 and the driving member is fixedly connected to the base 13. The driving member is transmission-connected to the shielding roller 10 and the driving member can drive the shielding roller 10 to rotate circumferentially. It also includes a longitudinal adjustment component, a transverse adjustment component and a trimming baffle 5. The longitudinal adjustment component is arranged on the outer side of the driving member, the longitudinal adjustment component is fixedly connected to the base 13 and the longitudinal adjustment component can adjust the height position of the trimming baffle 5, the transverse adjustment component is fixedly connected to the longitudinal adjustment component and the transverse adjustment component can adjust the horizontal position of the trimming baffle 5, and the trimming baffle 5 is L-shaped and the inner end of the trimming baffle 5 is fixedly connected to the transverse adjustment component.

[0030] The longitudinal adjustment assembly includes a fixed tube 14, a vertical rod 1 and a bolt 15. The fixed tube 14 is fixedly connected to the base 13, the vertical rod 1 is inserted into the fixed tube 14, and the bolt 15 is passed through the outer side of the upper part of the fixed tube 14. Tightening the bolt 15 can fix the vertical rod 1 to the fixed tube 14.

[0031] The lateral adjustment assembly includes a guide cylinder 3, a cross bar 2, and a positioning adjustment assembly. The guide cylinder 3 is laterally fixed to the upper end of the vertical rod 1, the cross bar 2 is axially inserted into the guide cylinder 3, and the cross bar 2 and the guide cylinder 3 are fixedly connected by the positioning adjustment assembly. The above-mentioned trimming baffle 5 is fixedly connected to the inner end of the cross bar 2.

[0032] The positioning adjustment component includes a positioning hole 18 opened on the inner side of the guide cylinder 3, a spring 19 connected to the positioning hole 18, a round ball 20 connected to the outer end of the spring 19, and a positioning groove 17 recessed on the outer side of the cross bar 2. The positioning groove 17 is hemispherical. There are several positioning grooves 17, and the several positioning grooves 17 are arranged equidistantly along the axial direction of the cross bar 2. When any positioning groove 17 is opposite to the positioning hole 18, under the action of the elastic force of the spring 19, the round ball 20 has a tendency to embed into the positioning groove 17.

[0033] There are a plurality of bolts 15 , which are arranged in an array along the circumference of the fixing tube 14 .

[0034] The fixing tube 14 has threaded holes therethrough, the number of the threaded holes being the same as the number of the bolts 15 , and a plurality of bolts 15 are threadedly connected to the plurality of threaded holes respectively.

[0035] The driving member includes a motor 16, a transmission belt 12 and a driven wheel 11. The motor 16 is fixedly connected to the base 13, and the driven wheel 11 is fixedly connected to the end of the shielding roller 10. The transmission belt 12 is sleeved on the outside of the transmission wheel and the output shaft of the motor 16. Under the drive of the motor 16, the transmission belt 12 drives the driven wheel 11 to rotate.

[0036] The shielding roller 10 further comprises a support frame 4 , which is arranged at both ends of the shielding roller 10 , the support frame 4 is fixedly connected to the spraying chamber 6 , and the shielding roller 10 is rotatably connected to the support frame 4 .

[0037] The thick edge reduction device for electrostatic powder spraying is based on the shielding roller 10 that absorbs part of the excess powder on the edge of the metal coil 8, and a trimming baffle 5 is arranged at the outlet 9. The L-shaped trimming baffle 5 fits the edge area of ​​the metal coil 8. As the metal coil 8 is continuously conveyed toward the outlet 9, the trimming baffle 5 can effectively disperse and clean the remaining powder accumulation at the edge of the metal coil 8, thereby improving the problem of limited adsorption capacity of the shielding roller 10, and improving the uniformity of the coating and the quality of the product. The longitudinal adjustment component is used to adjust the height position of the trimming baffle 5 so that it can move up and down, and the transverse adjustment component is used to adjust the horizontal position of the trimming baffle 5 so that it can move left and right. Therefore, the position of the trimming baffle 5 can be flexibly adjusted according to the actual thickness, width, position and other factors of the metal coil 8 to ensure that it fits the edge of the metal coil 8 with higher flexibility.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection required by the present invention.

Claims

1. A thick edge reduction device for powder electrostatic spraying, comprising a spraying chamber, a spray gun, a shielding roller, a driving member and a base, wherein the two ends of the spraying chamber are respectively provided with an inlet and an outlet, the spray gun and the shielding roller are both arranged in the spraying chamber, the base is fixedly connected to the outer side of the outlet and the driving member is fixedly connected to the base, the driving member is transmission-connected to the shielding roller and the driving member can drive the shielding roller to rotate circumferentially, characterized in that: It also includes a longitudinal adjustment component, a transverse adjustment component and a trimming baffle, the longitudinal adjustment component is arranged on the outside of the driving member, the longitudinal adjustment component is fixedly connected to the base and the longitudinal adjustment component can adjust the height position of the trimming baffle, the transverse adjustment component is fixedly connected to the longitudinal adjustment component and the transverse adjustment component can adjust the horizontal position of the trimming baffle, the trimming baffle is L-shaped and the inner end of the trimming baffle is fixedly connected to the transverse adjustment component.

2. The thick edge reduction device for powder electrostatic spraying according to claim 1, characterized in that: The longitudinal adjustment assembly includes a fixed tube, a vertical rod and a bolt. The fixed tube is fixedly connected to the base, the vertical rod is inserted into the fixed tube, the bolt is passed through the outer side of the upper part of the fixed tube, and tightening the bolt can fix the vertical rod to the fixed tube.

3. The thick edge reduction device for powder electrostatic spraying according to claim 2, characterized in that: The lateral adjustment assembly includes a guide cylinder, a cross bar, and a positioning adjustment assembly. The guide cylinder is laterally fixed to the upper end of the vertical rod. The cross bar is axially inserted into the guide cylinder and the cross bar and the guide cylinder are fixedly connected through the positioning adjustment assembly. The trimming baffle is fixedly connected to the inner end of the cross bar.

4. The thick edge reduction device for powder electrostatic spraying according to claim 3 is characterized in that: The positioning adjustment component includes a positioning hole opened on the inner side of the guide cylinder, a spring connected to the positioning hole, a round ball connected to the outer end of the spring, and a positioning groove recessed on the outer side of the cross bar. The positioning groove is hemispherical. There are several positioning grooves, and the positioning grooves are arranged equidistantly along the axial direction of the cross bar. When any positioning groove is opposite to the positioning hole, the round ball tends to be embedded in the positioning groove under the action of the spring elastic force.

5. The thick edge reduction device for powder electrostatic spraying according to claim 4, characterized in that: The number of the bolts is several, and the several bolts are arranged in an array along the circumference of the fixing tube.

6. The thick edge reduction device for powder electrostatic spraying according to claim 5, characterized in that: The fixing tube is provided with threaded holes extending therethrough, the number of the threaded holes being consistent with the number of the bolts, and a plurality of bolts are respectively threadedly connected with the plurality of threaded holes.

7. The thick edge reduction device for powder electrostatic spraying according to claim 6, characterized in that: The driving member includes a motor, a transmission belt and a driven wheel. The motor is fixedly connected to the base, the driven wheel is fixedly connected to the end of the shielding roller, the transmission belt is sleeved on the outside of the transmission wheel and the output shaft of the motor and driven by the motor, the transmission belt drives the driven wheel to rotate.

8. The thick edge reduction device for powder electrostatic spraying according to claim 7, characterized in that: It also includes a support frame, which is arranged at both ends of the shielding roller, the support frame is fixedly connected to the spraying chamber, and the shielding roller is rotatably connected to the support frame.

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