A metal coil continuous spraying device and its use method

Abstract

The present invention relates to the field of spraying area control technology, and in particular to a continuous spraying device for metal coils and a method for using the same. The present invention provides a continuous spraying device for metal coils, comprising a fixed bracket, an electric slide rail, a moving block, and a powder sprayer, etc. Two electric slide rails are connected to the upper part of the fixed bracket, and moving blocks are installed on the electric slide rails. A powder sprayer is installed on the side where the two moving blocks are close to each other. The present invention adjusts the position of the limiting slide frame to adapt to the width of different metal coils, controls the electric slide rail to drive the powder sprayer and the spray hood to move back and forth, controls the powder sprayer to spray powder on both sides of the metal coil, and the spray hood limits the spraying area. When spraying the edge parts of both sides of the metal coil, the powder guide plate is attached to the spray hood, and the excess powder falls along the guide groove to the lower edge of the spray hood, thereby controlling the spraying area, reducing powder waste, and reducing production costs.

Description

Technical Field

[0001] The present invention relates to the technical field of spraying area control, and in particular to a metal coil continuous spraying device and a method for using the same. Background Art

[0002] In the production of metal coils, powder coating is sometimes performed on the metal coils. Powder coating is a process in which powder coating is sprayed onto the surface of the workpiece using powder spraying equipment to form a powder coating to improve the mechanical strength, corrosion resistance, and aging resistance of the metal coils. Currently, continuous spraying of metal coils usually adopts the horizontal spraying method. The powder sprayer sprays powder from top to bottom, but powder easily accumulates on the surface of the powder sprayer, causing the accumulated powder to fall on the metal coils. The metal coils will also absorb air dust, affecting product quality.

[0003] A Chinese patent with the patent publication number CN210965768U discloses a powder spraying production system for metal coils. The patent adopts a vertical spraying method to spray powder on the metal coil from the side. However, vertical spraying may cause powder shedding, and the spraying area is difficult to control, which increases powder waste and increases production costs to a certain extent. In addition, the powder is very difficult to clean and is troublesome to clean. Therefore, it is urgent to develop a continuous spraying device for metal coils that can control the spraying area to reduce powder waste. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art in which powder falls off during vertical spraying of metal coils, the spraying area is difficult to control, and the powder is very difficult to clean, which increases production costs, the purpose of the present invention is to provide a continuous spraying device for metal coils that can control the spraying area and a method for using the same.

[0005] The technical implementation scheme of the present invention is: a continuous spraying device for metal coils, including a fixed bracket, an electric slide rail, a moving block, a powder sprayer, a powder feed pipe, a spray hood, a blocking mechanism, a guide mechanism and an adjustment mechanism. Two electric slide rails are connected to the upper part of the fixed bracket, and moving blocks are installed on the electric slide rails. A powder sprayer is installed on the side where the two moving blocks are close to each other, and the powder sprayers are connected to the powder feed pipe. The powder sprayers are connected to the spray hood, a blocking mechanism is provided on the powder sprayer, a guiding mechanism is provided on the blocking mechanism, and an adjustment mechanism is provided on the fixed bracket.

[0006] Furthermore, the blocking mechanism includes a connecting frame, a sliding plate and a compression spring. The powder sprayer is connected to a connecting frame, two sliding plates are slidably connected to the connecting frame, and compression springs are connected between the sliding plates and adjacent connecting frames.

[0007] Furthermore, the guiding mechanism includes a connecting block, a powder guide plate and a scroll spring. The sliding plates are rotatably connected to powder guide plates for guiding excess powder. The powder guide plates are provided with guide grooves on the side close to the spray hood. A scroll spring is connected between the powder guide plate and the adjacent sliding plate. Two connecting blocks are connected to the middle of the connecting frame, and the connecting blocks are in contact with the adjacent powder guide plates.

[0008] Furthermore, the adjustment mechanism includes an adjusting turntable, a threaded rod and a limit sliding frame. The upper part of the fixed bracket is rotatably connected to two threaded rods, and the ends of the threaded rods away from each other are connected to the adjusting turntable. The upper part of the fixed bracket is slidably connected to two limit sliding frames, and the limit sliding frames are threadedly connected to adjacent threaded rods. The sliding plate will contact the limit sliding frames when it moves forward and backward.

[0009] Furthermore, it also includes a baffle plate, the top of the fixed bracket is connected to the baffle plate, and a discharge hole is opened in the middle of the baffle plate.

[0010] Furthermore, a recovery mechanism is included, which includes a fixed plate and a connecting plate. Two pairs of fixed plates are connected to the upper part of the fixed bracket, and a connecting plate is connected between each pair of fixed plates.

[0011] Furthermore, it also includes a fixed rod and a rotating cylinder. The upper part of the connecting plate is connected to the fixed rod, and the rotating cylinder is rotatably connected to the fixed rod.

[0012] Furthermore, the connecting plates are all arranged at an inclination.

[0013] A method for using a metal coil continuous spraying device comprises the following steps:

[0014] S1: Pass the free end of the metal coil from bottom to top between the two spray hoods, and feed the powder for spraying through the powder feed pipe;

[0015] S2: Turn the adjustment dial to adjust the horizontal distance between the two limit sliding frames;

[0016] S3: Controls the electric slide rail to drive the moving block, powder sprayer and spray hood to move back and forth, and controls the powder sprayer to spray powder on both sides of the metal coil;

[0017] S4: When the powder sprayer is spraying the front edge parts of both sides of the metal coil, the spray hood blocks the powder under the action of the sliding plate, and the powder guide plate rotates and sticks to the spray hood, so that the excess powder falls along the guide groove to the lower edge of the spray hood.

[0018] The present invention has the following advantages: 1. The present invention adjusts the position of the limiting sliding frame to adapt to the width of different metal coils, controls the electric slide rail to drive the powder sprayer and the spray hood to move back and forth, controls the powder sprayer to spray powder on both sides of the metal coil, and the spray hood limits the spraying area. When spraying the edge parts of both sides of the metal coil, the powder guide plate is attached to the spray hood, and the excess powder falls along the guide groove to the lower edge of the spray hood, thereby controlling the spraying area, reducing powder waste, and reducing production costs.

[0019] 2. The baffle plate of the present invention can block the top of the spraying area to avoid contamination of the sprayed part of the metal coil. Excess powder falls onto the connecting plate, causing the powder to slide down, making it convenient for people to collect the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a structural schematic diagram of the blocking mechanism, guiding mechanism, adjusting mechanism and recycling mechanism of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the blocking mechanism, regulating mechanism and recycling mechanism of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the movable block, powder sprayer, powder feeding pipe and spraying cover of the present invention.

[0024] Figure 5 It is a schematic structural diagram of the blocking mechanism, guiding mechanism and spray hood of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the blocking mechanism and the guiding mechanism of the present invention.

[0026] Figure 7 It is a schematic structural diagram of the powder guide plate and the scroll spring of the present invention.

[0027] Figure 8 It is a structural schematic diagram of the adjustment mechanism of the present invention.

[0028] Figure 9 It is a structural schematic diagram of the blocking mechanism and the material blocking plate of the present invention.

[0029] Figure 10 It is a structural schematic diagram of the spray hood, recovery mechanism, fixed rod and rotating cylinder of the present invention.

[0030] Figure 11 It is a structural schematic diagram of the recovery mechanism, fixed rod and rotating drum of the present invention.

[0031] The meanings of the reference numerals in the figure are: 1: fixed bracket, 2: electric slide rail, 3: moving block, 4: powder sprayer, 5: powder feed pipe, 6: spray hood, 71: connecting frame, 72: sliding plate, 73: compression spring, 81: connecting block, 82: powder guide plate, 83: volute spring, 84: guide groove, 91: baffle plate, 92: discharge hole, 101: adjusting turntable, 102: threaded rod, 103: limiting sliding frame, 111: fixed plate, 112: connecting plate, 121: fixed rod, 122: rotating cylinder. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Example 1: A metal coil continuous spraying device and its use method, such as Figures 1-8 As shown, it includes a fixed bracket 1, an electric slide rail 2, a moving block 3, a powder sprayer 4, a powder feeding pipe 5, a spraying hood 6, a blocking mechanism, a guiding mechanism and an adjusting mechanism. Two symmetrically arranged electric slide rails 2 are installed on the upper part of the fixed bracket 1. The electric slide rails 2 are each equipped with a moving block 3. The two moving blocks 3 are each equipped with a powder sprayer 4 on the side close to each other. The electric slide rail 2 is used to drive the moving block 3 and the powder sprayer 4 to move back and forth. The powder sprayer 4 is connected to a powder feeding pipe 5. Powder is introduced through the powder feeding pipe 5 to control the powder sprayer to spray the metal coil. The powder sprayer 4 is fixedly connected to a spraying hood 6, which can block powder and reduce powder waste. The powder sprayer 4 is provided with a blocking mechanism, the blocking mechanism is provided with a guiding mechanism, and the fixed bracket 1 is provided with an adjusting mechanism.

[0034] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 As shown, the blocking mechanism includes a connecting frame 71, a sliding plate 72 and a compression spring 73. The connecting frame 71 is welded on the powder sprayer 4. Two symmetrically arranged sliding plates 72 are slidably connected to the connecting frame 71. Compression springs 73 are fixedly connected between the sliding plates 72 and the adjacent connecting frames 71. The sliding plates 72 can block the powder sprayed by the powder sprayer 4, thereby reducing the waste of powder.

[0035] like Figure 5-Figure 7As shown, the guide mechanism includes a connecting block 81, a powder guide plate 82 and a volute spring 83. The sliding plate 72 is rotatably connected to the powder guide plate 82. The powder guide plate 82 is provided with a guide groove 84 on one side close to the spray hood 6, so that excess powder can fall along the guide groove 84 to the position where there is less powder at the edge of the spray hood 6, thereby making the powder spraying uniform. The powder guide plate 82 and the adjacent sliding plate 72 are fixedly connected with a volute spring 83. The middle part of the connecting frame 71 is fixedly connected to two symmetrically arranged connecting blocks 81, and the connecting blocks 81 are in contact with the adjacent powder guide plates 82.

[0036] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 8 As shown, the adjustment mechanism includes an adjusting dial 101, a threaded rod 102 and a limit sliding frame 103. The upper part of the fixed bracket 1 is symmetrically connected to the threaded rod 102 in a front-to-back rotation manner. The ends of the threaded rod 102 away from each other are welded with an adjusting dial 101. The upper part of the fixed bracket 1 is symmetrically connected to the limit sliding frame 103 in a front-to-back sliding manner. The limit sliding frames 103 are threadedly connected to adjacent threaded rods 102. The sliding plate 72 will contact the limit sliding frame 103 when it moves forward and backward. The rotation of the threaded rod 102 causes the limit sliding frame 103 to move forward and backward, thereby being able to adjust the position of the sliding plate 72 and the limit sliding frame 103 when they are in contact to adapt to metal coils of different widths.

[0037] First, the free end of the metal coil to be sprayed with powder is passed from bottom to top between the two spray hoods 6, and the powder for spraying is introduced through the powder feeding pipe 5. Then, the adjusting dial 101 is manually rotated to drive the threaded rod 102 to rotate. Under the action of the threaded connection, the limit slide 103 can be slid back and forth to adjust the horizontal distance between the two limit slides 103, thereby adapting to the width of different metal coils. Then, the electric slide rail 2 is controlled to drive the moving block 3 to move back and forth in the horizontal direction, driving the powder sprayer 4, the spray hood 6, the connecting frame 71, and the connecting block 81, the powder guide plate 82 and the sliding plate 72 move back and forth in the horizontal direction, and the powder sprayer 4 can be controlled to spray powder on both sides of the metal coil. When the two sliding plates 72 on the front side move forward and contact the front limit sliding frame 103, the two sliding plates 72 on the front side stop moving, while the powder sprayer 4, the spraying cover 6 and the connecting frame 71 continue to move forward, and the compression spring 73 on the front side is compressed. The powder sprayer 4 can spray the front edge parts of both sides of the metal coil, and the spraying cover 6 can block the sprayed powder to limit the spraying area. , to prevent powder from flying out, so as to reduce powder waste. At the same time, because the two sliding plates 72 on the front side stop moving, and the connecting frame 71 and the connecting block 81 continue to move forward, the connecting block 81 will push the two powder guide plates 82 on the front side to rotate, and the volute spring 83 on the front side is deformed, so that the powder guide plate 82 is attached to the front side of the spray hood 6, and the excess powder falls along the guide groove 84 to the lower edge of the spray hood 6, which can make the powder spraying more uniform. When the powder sprayer 4 moves backward for spraying, the connecting frame 71 and the connecting block 81 move backward, When the two compression springs 73 on the front side return to their original state, the connecting frame 71 will drive the front sliding plate 72 to move backward, so that the front sliding plate 72 is separated from the front limiting sliding frame 103, and the spiral spring 83 will return to its original state, driving the front powder guide plate 82 to rotate in the opposite direction and reset. When the rear sliding plate 72 contacts the rear limiting sliding frame 103, similarly, the rear powder guide plate 82 can guide excess powder, thereby controlling the spraying area, reducing powder waste, reducing powder cleaning work, and reducing production costs.

[0038] Example 2: Based on Example 1, Figure 1 and Figure 9 As shown, a baffle plate 91 is also included. The baffle plate 91 is welded on the top of the fixed bracket 1. A discharge hole 92 is opened in the middle of the baffle plate 91. The free end of the metal coil passes through the discharge hole 92 from bottom to top. The baffle plate 91 can block the top of the spraying area, thereby avoiding contamination of the sprayed part of the metal coil.

[0039] like Figure 1 、 Figure 2 、 Figure 10 and Figure 11As shown, it also includes a recovery mechanism, which includes a fixed plate 111 and a connecting plate 112. Two pairs of fixed plates 111 are fixedly connected to the upper part of the fixed bracket 1, and a connecting plate 112 is fixedly connected between each pair of fixed plates 111. Excess powder will fall onto the connecting plate 112, and the connecting plate 112 is tilted so that the powder slides down. It also includes a fixed rod 121 and a rotating cylinder 122. The upper part of the connecting plate 112 is welded with a fixed rod 121, and the fixed rod 121 is rotatably connected to the rotating cylinder 122. The rotating cylinder 122 can rotate, thereby facilitating people to collect the powder and reducing production costs.

[0040] A method for using a metal coil continuous spraying device comprises the following steps:

[0041] S1: Pass the free end of the metal coil from bottom to top between the two spray hoods 6, and introduce the powder for spraying through the powder feeding pipe 5;

[0042] S2: Rotate the adjustment dial 101 to adjust the horizontal distance between the two limit sliding frames 103;

[0043] S3: Control the electric slide rail 2 to drive the moving block, the powder sprayer 4 and the spraying cover 6 to move back and forth, and control the powder sprayer 4 to spray powder on both sides of the metal coil;

[0044] S4: When the powder sprayer 4 sprays the front edge portions of both sides of the metal coil, the spray hood 6 blocks the powder under the action of the sliding plate 72, and the powder guide plate 82 rotates and sticks to the spray hood 6, so that the excess powder falls along the guide groove 84 to the lower edge portion of the spray hood 6.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A continuous spraying device for metal coils, characterized in that: The invention comprises a fixed bracket (1), an electric slide rail (2), a moving block (3), a powder sprayer (4), a powder feed pipe (5), a spraying cover (6), a blocking mechanism, a guiding mechanism and an adjusting mechanism. The upper part of the fixed bracket (1) is connected to two electric slide rails (2), and the electric slide rails (2) are both equipped with moving blocks (3). The two moving blocks (3) are both equipped with powder sprayers (4) on the side close to each other. The powder sprayers (4) are both connected to the powder feed pipe (5). The powder sprayers (4) are both connected to the spraying cover. The powder sprayer (4) is provided with a blocking mechanism, the blocking mechanism is provided with a guide mechanism, and the fixed bracket (1) is provided with an adjustment mechanism; the blocking mechanism includes a connecting frame (71), a sliding plate (72) and a compression spring (73); the powder sprayer (4) is connected to the connecting frame (71), and the connecting frame (71) is slidably connected to two sliding plates (72), and a compression spring (73) is connected between the sliding plate (72) and the adjacent connecting frame (71); the guide mechanism includes a connecting block (81) , a powder guide plate (82) and a volute spring (83), a powder guide plate (82) for guiding excess powder is rotatably connected to the sliding plate (72), a guide groove (84) is provided on the side of the powder guide plate (82) close to the spray hood (6), a volute spring (83) is connected between the powder guide plate (82) and the adjacent sliding plate (72), two connecting blocks (81) are connected to the middle of the connecting frame (71), and the connecting blocks (81) are in contact with the adjacent powder guide plates (82); the regulating mechanism The structure includes an adjusting turntable (101), a threaded rod (102) and a limit sliding frame (103), the upper part of the fixed bracket (1) is rotatably connected to the two threaded rods (102), the ends of the threaded rods (102) away from each other are connected to the adjusting turntable (101), the upper part of the fixed bracket (1) is slidably connected to the two limit sliding frames (103), the limit sliding frames (103) are threadedly connected to the adjacent threaded rods (102), and the sliding plate (72) contacts the limit sliding frames (103) when it moves forward and backward.

2. A continuous spraying device for metal coils according to claim 1, characterized in that: It also includes a baffle plate (91), the top of the fixed bracket (1) is connected to the baffle plate (91), and a discharge hole (92) is opened in the middle of the baffle plate (91).

3. A continuous spraying device for metal coils according to claim 2, characterized in that: The invention also includes a recovery mechanism, which includes a fixed plate (111) and a connecting plate (112). Two pairs of fixed plates (111) are connected to the upper part of the fixed bracket (1), and a connecting plate (112) is connected between each pair of fixed plates (111).

4. A continuous spraying device for metal coils according to claim 3, characterized in that: It also includes a fixed rod (121) and a rotating cylinder (122). The upper part of the connecting plate (112) is connected to the fixed rod (121), and the rotating cylinder (122) is rotatably connected to the fixed rod (121).

5. A metal coil continuous spraying device according to claim 4, characterized in that: The connecting plates (112) are all arranged in an inclined manner.

6. A method for using a continuous spray coating device for metal coils, using the continuous spray coating device for metal coils as claimed in claim 5, characterized in that: The steps include: S1: Pass the free end of the metal coil from bottom to top between the two spray hoods (6), and introduce the powder for spraying through the powder feeding pipe (5); S2: Rotate the adjustment dial (101) to adjust the horizontal distance between the two limit sliding frames (103); S3: Controlling the electric slide rail (2) to drive the moving block, the powder sprayer (4) and the spraying cover (6) to move back and forth, and controlling the powder sprayer (4) to spray powder on both sides of the metal coil; S4: When the powder sprayer (4) sprays the front edge portions of both sides of the metal coil, the spray hood (6) blocks the powder under the action of the sliding plate (72), and the powder guide plate (82) rotates and sticks to the spray hood (6), so that the excess powder falls along the guide groove (84) to the lower edge portion of the spray hood (6).

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