Efficient coating device for metal printing

Abstract

The utility model relates to the field of metal printing and coating, in particular to a high-efficiency coating device for metal printing, which comprises a metal plate feeding mechanism consisting of a plurality of rollers and the like, and a heat supply coil pipe and the like which are arranged not far away from the lower part of a metal plate, compared with the prior art, the device has the advantages that the heat supply coil pipe in which hot water circulates is emphatically adopted, and the mode that the heat supply coil pipe is arranged not far away from the lower part of the metal plate is adopted, so that heat is directly, nearby and uniformly transferred to the metal plate, and glue on each part of the metal plate can be quickly dried up at a relatively uniform speed; in addition, an adjusting mode is additionally arranged in the feeding mechanism of the device, so that the device is suitable for processing metal plates with various width sizes within a certain range; through the two improvements, the metal coating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal printing and coating, specifically to a high-efficiency coating device for metal printing. Background Technology

[0002] Applying a protective film to the surface of metal printing plates can improve the protection of the metal plates. The coating material is generally UV adhesive.

[0003] UV adhesives can dry quickly by heating. In general coating equipment, heat is supplied by direct hot air blowing. The heat source is concentrated and far away from the metal sheet conveying area. After the hot air blows, the heat cannot be evenly distributed in the environment where the metal sheet is located. This will result in either some of the adhesive remaining undried or the overall curing time being extended. Therefore, an efficient coating device for metal printing is provided. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this invention aims to solve is that in most coating equipment, the traditional method involves placing the metal sheet in a structure similar to an air duct and supplying hot air through a heat source at a considerable distance. However, once the hot air reaches the curing area of ​​the metal sheet, it is difficult to create a uniform air environment, resulting in poor coating curing quality or low efficiency.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a high-efficiency coating device for metal printing, including a cabinet, wherein both ends of the cabinet are provided with inlet and outlet ports.

[0008] The cabinet is connected to a horizontally laid baffle, and a feeding mechanism for conveying metal sheets for coating processing is connected above the baffle.

[0009] The cabinet is equipped with a heating coil located below the baffle, which provides heat for the coating on the metal sheet to dry and cure quickly. A water pump is installed on the heating coil. An air duct is connected to the top of the cabinet, and a fan is installed in the air duct.

[0010] Furthermore, the baffle is evenly provided with notches, and arc-shaped guide plates are connected downward on both sides of the notches. The portion of the heating coil perpendicular to the feeding direction of the feeding mechanism is arranged between two adjacent guide plates.

[0011] Furthermore, the feeding mechanism includes support rods installed opposite each other at the bottom of the cabinet. The feeding mechanism also includes an adjustment component that can adapt to the conveying of metal sheets of various widths by changing the distance between the two support rods. A drive shaft and a driven shaft are rotatably connected at both ends of the support rods. A second motor that drives and cooperates with the drive shaft is installed inside the cabinet. A belt drive component is installed between the ends of the drive shaft and the driven shaft. Power rollers are installed opposite each other at the ends of the drive shaft and the driven shaft.

[0012] Furthermore, multiple support columns are evenly connected on the support rod. After the top of the support column passes through a notch, an auxiliary roller that cooperates with the power roller is rotatably connected. Both the power roller 23 and the auxiliary roller 16 are connected to support shafts 15 that are rotatably connected to the ends of the support rod 11 and the support column 14, respectively.

[0013] Furthermore, the adjustment assembly includes a screw rod rotatably installed in one side of the bottom of the cabinet, a No. 1 motor that drives and cooperates with the screw rod installed at the bottom of the cabinet, a sliding rod connected to the side of the bottom of the cabinet away from the screw rod, and a screw sleeve and a sliding sleeve that are threadedly connected to the screw rod and slidably connected to the sliding rod respectively at both ends of the support rod.

[0014] Furthermore, a slide frame for supporting and cooperating with the operation of the adjustment component is slidably installed on one side of the cabinet, and multiple support rods are connected inside the cabinet to support and cooperate with the slide frame to slide within the cabinet.

[0015] III. Beneficial Effects

[0016] The advantages of this invention compared to existing technologies are as follows: This device emphasizes the use of a heating coil with internal hot water circulation, installed not far below the metal sheet, to directly, nearby, and evenly transfer heat to the metal sheet, causing the adhesive on each part of it to dry quickly and relatively more evenly; In addition, an adjustment mode is added to the feeding mechanism of this device, which can adapt to the processing of metal sheets of various widths within a certain range; Through these two improvements, the efficiency of metal coating is improved. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a high-efficiency coating device for metal printing according to this utility model. Figure One .

[0018] Figure 2 This is a schematic diagram of the external structure of a high-efficiency coating device for metal printing according to this utility model. Figure Two .

[0019] Figure 3This is a schematic diagram of the internal structure of a high-efficiency coating device for metal printing according to this utility model. Figure One .

[0020] Figure 4 This is a schematic diagram of the internal structure of a high-efficiency coating device for metal printing according to this utility model. Figure Two .

[0021] Figure 5 yes Figure 2 A schematic diagram of the structure of part A.

[0022] Figure 6 yes Figure 3 A partial structural diagram.

[0023] Figure 7 yes Figure 4 A schematic diagram of the structure of part B.

[0024] Figure 8 yes Figure 4 A structural diagram of part C.

[0025] As shown in the figure: 1. Box / cabinet, 2. Inlet / outlet, 3. Baffle, 4. Guide plate, 5. Notch, 6. Heating coil, 7. Water pump, 8. Screw, 9. Motor No. 1, 10. Screw sleeve, 11. Support rod, 12. Slide rod, 13. Slide sleeve, 14. Support column, 15. Support shaft, 16. Auxiliary roller, 17. Drive shaft, 18. Motor No. 2, 19. Frame rod, 20. Slide, 21. Driven shaft, 22. Belt drive assembly, 23. Power roller, 24. Air duct, 25. Fan. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0028] Example 1

[0029] A high-efficiency coating device for metal printing, combined with an attached Figure 1 The container includes a cabinet 1, which has inlet and outlet ports 2 at both ends. Metal sheets are fed into the container 1 through the inlet and outlet port 2 at one end for coating. The container 1 has a reserved space for installing a coating mechanism near one end.

[0030] Combined with appendix Figures 3-4The cabinet 1 is connected to a horizontally laid baffle 3. Above the baffle 3, a feeding mechanism for conveying metal sheets for coating is connected to the cabinet 1. The feeding mechanism includes a support rod 11 installed at the bottom of the cabinet 1. A drive shaft 17 and a driven shaft 21 are rotatably connected to both ends of the support rod 11. A second motor 18, which drives the drive shaft 17, is installed inside the cabinet 1. A carriage 20 is installed between the ends of the drive shaft 17 and the driven shaft 21. Figure 6 The drive shaft 17 and the driven shaft 21 are both equipped with power rollers 23 at their ends. Multiple support columns 14 are evenly connected on the support rod 11. The top of the support column 14 passes through the notch 5 and is rotatably connected to an auxiliary roller 16 that cooperates with the power roller 23. The power roller 23 and the auxiliary roller 16 are both connected to support shafts 15 that are rotatably connected to the ends of the support rod 11 and the support column 14, respectively.

[0031] The power roller 23 and the auxiliary roller 16 are rollers of the same specifications and model. The two rollers belonging to the same group have a slot reserved on the side that is close to each other, which can be selectively installed later. The end faces of the rollers that are far from each other are equipped with clamps to limit the position of the metal plate being carried during the conveying process. The apex of their bearing surface is kept at the same horizontal height as the bottom surface of the inlet / outlet 2. If there is any error, the apex must not be lower than the horizontal height of the bottom surface of the inlet / outlet 2.

[0032] The operation of motor 18 causes the drive shaft 17 to rotate. After a set of rollers clamps the two ends of the metal plate, the two rollers can rotate synchronously. Similarly, through the contact of the metal plate with each roller, the auxiliary roller 16 can also rotate synchronously with the power roller 23 without directly contacting the power source, and provide effective support and transportation for the metal plate. The power wheel that directly contacts the power source rotates in a consistent manner through the slide 20 installed between the drive shaft 17 and the driven shaft 21. The pulleys in the slide 20 are respectively installed on the ends of the drive shaft 17 and the driven shaft 21, and the synchronous belt is installed between the two pulleys.

[0033] Combined with appendix Figure 2 and attached Figure 4 The feeding mechanism also includes an adjustment component that adapts to conveying metal sheets of various widths by changing the distance between the two support rods 11. The adjustment component includes a screw 8 rotatably mounted and connected to one side of the bottom of the cabinet 1, combined with the attached... Figure 1 The bottom of the cabinet 1 is equipped with a No. 1 motor 9 that drives and cooperates with the screw 8, combined with the attached... Figures 7-8 The bottom of the cabinet 1 is connected to a sliding rod 12 on the side away from the screw 8. The two ends of the support rod 11 are respectively connected to a screw sleeve 10 and a sliding sleeve 13 that are threaded to the screw 8 and slidably connected to the sliding rod 12.

[0034] To improve the adaptability of the device, an additional motor 9 is added to drive the screw 8 to rotate. The slide rod 12, located away from the motor 9 and the screw 8 inside the cabinet 1, is slidably connected to the support rod 11. This ensures that the support rod 11, which is threaded onto the screw 8, can carry the corresponding rollers and move within the cabinet 1. The external thread structure on the screw 8 is set in opposite directions, which allows the rollers on both sides to move and adjust towards each other within the cabinet 1 after rotation, thereby changing the feeding mechanism's load-bearing requirements for the width of the metal sheet.

[0035] Combined with appendix Figure 5 The cabinet 1 is slidably connected to a slide frame 20 for supporting and cooperating with the operation of the adjustment component. The cabinet 1 is also connected to a plurality of support rods 19 that are slidably connected to the slide frame 20 inside the cabinet 1.

[0036] In order to accommodate the movement of the support rod 11, the second motor 18 is installed in a slide 20 and can also move in the cabinet 1. The two support rods 19 installed in the cabinet 1 not only provide a path for its movement, but also provide effective support.

[0037] Example 2

[0038] Combined with appendix Figures 2-4 The cabinet 1, located below the baffle 3, is equipped with a heating coil 6 that circulates hot water internally to provide heat for the coating on the metal sheet, enabling it to dry and cure quickly. A water pump 7 is installed on the heating coil 6. Figure 1 and attached Figure 4 The top of the cabinet 1 is connected to an air duct 24, and a fan 25 is installed inside the air duct 24;

[0039] The device provides sufficient, stable and uniform heat to cure and dry the coating material on the metal sheet by placing a heating coil 6 close to the metal sheet being transported. The heating coil 6 is equipped with a water pump 7. By regulating the water pump 7 or by making reasonable heat insulation zones in the cabinet 1, the heat provided by the hot water in the pipe can be effectively prevented from affecting the coating process.

[0040] The heating coil 6 adopts a bent pipe with a reciprocating bending structure, which is arranged under the metal plate to increase the direct contact area between hot water and outside air, effectively utilizing the heat of hot water to efficiently heat the environment inside the paint drying space of the cabinet 1.

[0041] The fan 25 in the air duct 24 above the metal plate draws the air out of the cabinet 1 after it is running, so that the air duct 1 forms an upward airflow, which causes the heat emitted by the heating coil 6 below the metal plate to rise to the position of the metal plate.

[0042] The baffle 3 is provided with notches 5 evenly, and the baffle 3 is provided with arc-shaped guide plates 4 on both sides of the notches 5. The portion of the heating coil 6 perpendicular to the feeding direction of the feeding mechanism is arranged between two adjacent guide plates 4.

[0043] The coating generally uses UV adhesive. After the coating mechanism applies the coating, the adhesive will not dry. In order to prevent the liquid adhesive from dripping from the metal plate onto the heating coil 6 below and solidifying layer by layer on the outside of the pipe wall over a long period of time, thus reducing the heat conduction effect, a baffle 3 is set below the metal plate transport path. The baffle 3 is bent downward at the notch 5 and a guide plate 4 is set to protect the heating coil 6 and guide the flow of adhesive. This further effectively handles the downward flow of adhesive and protects the heating coil 6.

[0044] The bottom of the cabinet 1 is hollow and equipped with a connecting structure for the cabinet 1, which facilitates the installation of the cabinet 1 in the coating equipment and the combined installation of other coating supporting mechanisms. The bottom or underside of the cabinet 1 is reasonably equipped with a coating glue waste collection mechanism according to the objective requirements of the site.

[0045] In a specific implementation of this utility model, the metal sheet enters from one end of the cabinet 1 and begins the coating process. Inside the cabinet 1, it moves towards the other end outlet along a feeding mechanism composed of multiple rollers and other components. After the coating is completed, it arrives at the curing area. The heating coil 6 filled with hot water below emits sufficient heat to directly bake the metal sheet containing the coating and adhesive not far above. At the same time, the fan 25 above continuously delivers heat to the area around the metal sheet through the suction action, so that the metal coating material dries quickly and completely.

[0046] Before and after use, the device can also be operated by motor 9 to change the distance between the left and right rollers, and within a certain range, it can adapt to metal sheets of different widths for coating operations.

[0047] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-efficiency coating device for metal printing, comprising a cabinet (1), both ends of which are provided with inlet and outlet ports (2), characterized in that: a horizontally laid baffle (3) is connected in the cabinet (1), and a feeding mechanism for conveying metal plates for coating processing is connected above the baffle (3); a heat supply coil pipe (6) for circulating hot water inside to provide heat for the coating on the metal plate to dry and solidify quickly is installed below the baffle (3) in the cabinet (1), a water pump (7) is installed on the heat supply coil pipe (6), and an air duct (24) is connected to the top of the cabinet (1), and a fan (25) is installed in the air duct (24). The baffle (3) is uniformly provided with notches (5), and arc-shaped guide plates (4) are connected downward on both sides of the notches (5), and the part of the heat supply coil pipe (6) perpendicular to the feeding direction of the feeding mechanism is arranged between two adjacent guide plates (4).

2. The efficient coating device for metal printing according to claim 1, characterized in that: The feeding mechanism comprises support rods (11) oppositely installed in the bottom of the cabinet (1), and further comprises an adjusting assembly for adapting to the conveying of metal plates of various widths by changing the distance between the two support rods (11), drive shafts (17) and driven shafts (21) are respectively connected in common rotation between the two ends of the support rods (11), a No. 2 motor (18) is installed in the cabinet (1) and is in transmission cooperation with the drive shafts (17), a carriage (20) is installed in common between the ends of the drive shafts (17) and the driven shafts (21), and power rollers (23) are oppositely installed at the ends of the drive shafts (17) and the driven shafts (21).

3. The efficient coating device for metal printing according to claim 1, characterized in that: A plurality of support columns (14) are uniformly connected to the support rods (11), and auxiliary rollers (16) matched with the power rollers (23) are rotatably connected to the top ends of the support columns (14) after penetrating the notches (5), and the power rollers (23) and the auxiliary rollers (16) are connected with support shafts (15) rotatably connected with the ends of the support rods (11) and the support columns (14), respectively.

4. The efficient coating device for metal printing according to claim 3, characterized in that: The adjusting assembly comprises a screw rod (8) rotatably installed on one side of the bottom of the cabinet (1), a No. 1 motor (9) is installed on the bottom of the cabinet (1) and is in transmission cooperation with the screw rod (8), a slide rod (12) is connected to the side of the bottom of the cabinet (1) away from the screw rod (8), and screw sleeves (10) and slide sleeves (13) are connected in sliding connection with the slide rod (12) and are threadedly connected with the screw rod (8) at the two ends of the support rods (11), respectively.

5. The efficient coating device for metal printing according to claim 3, characterized in that: A carriage (20) for carrying and cooperating with the operation of the adjusting assembly is slidably connected and installed on one side of the cabinet (1), and a plurality of frame rods (19) supporting and cooperating with the sliding connection of the carriage (20) in the cabinet (1) are connected in the cabinet (1).

6. The efficient coating device for metal printing according to claim 3, characterized in that: ​

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