Metal surface UV printing system

Abstract

The invention discloses a metal surface UV printing system which comprises a conveying frame, a fixing mechanism, a curing mechanism and a cleaning mechanism, a protective cover is arranged in the middle of the upper end of the conveying frame, a fixing rod is arranged in the protective cover, a printing nozzle is arranged at the lower end of the fixing rod, and a mounting frame is arranged on the right side of the upper end of the conveying frame. And the fixing mechanism comprises a partition plate, a vertical rod, connecting arms and clamping plates, the partition plate is arranged on the upper side of the interior of the protective cover, a fixing rod is placed in a mounting groove formed in the middle of the lower end of the partition plate, the vertical rod is rotationally connected to the rear side of the upper end of the partition plate, and the connecting arms are arranged on the upper sides of the outer arc surfaces of the vertical rod correspondingly. The fixing mode is optimized, the precision of printing work is improved, the printing quality is guaranteed, impurities can be rapidly cleaned, good adhesion of UV ink is guaranteed, irradiation dead angles are reduced subsequently, and therefore the more uniform curing effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of printing equipment, in particular to a metal surface UV printing system. Background Art

[0002] Metal surface UV printing system is an advanced printing technology that allows high-resolution images, text or patterns to be printed directly on various metal surfaces. This system usually uses UV-curable ink, which cures quickly under UV light to form a durable, scratch-resistant and chemical-resistant image. When using the metal surface UV printing system, the print head needs to be fixed inside the device by fastening bolts, and then the printed image, text or pattern is transmitted to the control device by computers, mobile phones and other devices through data transmission devices. Later, when the metal material moves, the print head will spray UV ink on the metal surface to form the required image, text or pattern. After the metal material is UV printed, the ultraviolet light is emitted by the ultraviolet lamp to react chemically with the UV ink on the surface of the metal material, so that the UV ink is quickly solidified, thereby achieving the drying effect; After working for a long time, the fastening bolts of the existing metal surface UV printing system are corroded and fall off due to external influences, which affects the stability of the print head and reduces the accuracy of printing. When the metal material is UV printed, the impurities adhering to its surface will hinder the direct contact between the UV ink and the metal surface, resulting in uneven distribution of the ink, affecting the printing quality. In the subsequent curing work, since the position of the ultraviolet lamp is fixed, during the use of the ultraviolet lamp, if there are irregular shapes such as depressions or protrusions on the metal surface, some blind spots will be generated. Finally, the curing quality will be reduced due to incomplete local drying of the UV ink. For this reason, we propose a metal surface UV printing system. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a metal surface UV printing system, which optimizes the fixing method, improves the accuracy of printing work, ensures the printing quality, can quickly clean impurities, ensures good adhesion of UV ink, and subsequently reduces irradiation dead angles, thereby achieving a more uniform curing effect, and can effectively solve the problems in the background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: a metal surface UV printing system, comprising a conveyor frame, a protective cover is arranged in the middle of the upper end of the conveyor frame, a fixing rod is arranged inside the protective cover, a printing nozzle is arranged at the lower end of the fixing rod, a mounting frame is arranged on the right side of the upper end of the conveyor frame, and also includes a fixing mechanism, a curing mechanism and a cleaning mechanism; The fixing mechanism includes a partition plate, a vertical pole, a connecting arm and a clamping plate. The partition plate is arranged on the upper side of the interior of the protective cover. A fixing rod is placed in a mounting groove arranged in the middle of the lower end of the partition plate. The rear side of the upper end of the partition plate is rotatably connected to the vertical pole. The upper sides of the outer arc surfaces of the vertical poles are respectively provided with connecting arms. The front ends of the connecting arms are respectively provided with clamping plates. The inner arc surfaces of the clamping plates are in contact with the outer arc surfaces of the fixing rods. The curing mechanism is arranged at the lower end of the conveying frame; The cleaning mechanism is set inside the mounting frame, which optimizes the fixing method, improves the accuracy of printing work, ensures the printing quality, can quickly clean impurities, ensures good adhesion of UV ink, and subsequently reduces blind angles of irradiation, thereby achieving a more uniform curing effect.

[0005] Furthermore, the fixing mechanism also includes an electric push rod, a push plate and a limit rod. The electric push rod is arranged on the upper side of the rear wall of the protective cover, a push plate is arranged at the front end of the telescopic end of the electric push rod, limit rods are arranged on the left and right sides of the lower end of the push plate, and limit grooves are arranged on the rear side of the upper end of the connecting arm. The lower ends of the limit rods are respectively located inside the vertically adjacent limit grooves. The input ends of the electric push rods are electrically connected to the output ends of the control unit, so that the position of the clamping plate can be adjusted.

[0006] Furthermore, the curing mechanism includes a cross bar, a vertical plate, an ultraviolet irradiation lamp, a connecting rod, a transmission plate, a gear, a driving gear, a servo motor and a half gear, the cross bar is arranged on the upper side of the interior of the mounting frame, the left and right sides of the outer arc surface of the cross bar are slidably connected with the vertical plates, the vertical plates are slidably connected with the avoidance grooves arranged in the middle of the lower end of the mounting frame, the upper ends of the vertical plates are provided with push rods, the lower ends of the vertical plates are provided with ultraviolet irradiation lamps, the connecting rods are rotatably connected to the front sides of the bottom wall of the mounting frame, the upper sides of the outer arc surfaces of the connecting rods are provided with transmission plates, and the transmission One end of the moving plate close to the inner center of the mounting frame is in contact with the outer arc surface of the laterally adjacent push rod, and a gear is provided in the middle of the outer arc surface of the connecting rod, and the two gears are meshed and connected. A driving gear is provided on the lower side of the outer arc surface of the connecting rod on the right side, and the servo motor is arranged on the right side of the lower end of the mounting frame. A half gear is provided on the upper end of the servo motor output shaft, and the half gear is installed in coordination with the driving gear. The input end of the servo motor and the ultraviolet lamp is electrically connected to the output end of the control unit, which can make the UV ink cure quickly, thereby achieving a drying effect.

[0007] Furthermore, the cleaning mechanism includes a mounting cover, a transverse plate, a fixing frame, a cleaning brush, a connecting plate, a driving motor, a center wheel and a fixing column. The mounting cover is arranged at the lower end of the conveying frame, and a transverse plate is slidably connected in a slide groove arranged on the rear side of the left end of the mounting cover. A fixing frame is arranged at the left end of the transverse plate, and a cleaning brush is arranged at the upper end of the fixing frame. The cleaning brush is located on the upper side of the conveying frame, and a connecting plate is arranged on the right side of the front end of the transverse plate. A driving motor is arranged on the front side of the lower end of the mounting cover, and a center wheel is arranged at the upper end of the output shaft of the driving motor. Fixed columns are respectively arranged on the front and rear sides of the upper end of the center wheel, and the outer arc surface of the fixing column on the rear side contacts with the right surface of the connecting plate. The input end of the driving motor is electrically connected to the output end of the control unit, so as to clean the impurities adhering to the upper surface of the metal material and ensure the good adhesion of the UV ink.

[0008] Furthermore, springs are provided between one end of the vertical plate away from the inner center of the mounting frame and the inner wall of the mounting frame. The springs are respectively sleeved on the outside of the outer side of the cross bar and can drive the ultraviolet irradiation lamp to move and reset through the vertical plate.

[0009] Furthermore, it also includes a torsion spring, which is movably mounted on the lower side of the outer arc surface of the left connecting rod, the lower end of the torsion spring is fixedly connected to the bottom wall of the mounting frame, and the upper end of the torsion spring is fixedly connected to the outer arc surface of the left connecting rod, so that the transmission plate can be driven to rotate and reset through the connecting rod.

[0010] Furthermore, a mounting rod is rotatably connected to the right side of the bottom wall of the mounting cover, a cam is provided on the upper side of the outer arc surface of the mounting rod, an adjustment plate is provided on the rear side of the outer arc surface of the cam, an adjustment groove is provided on the rear side of the upper end of the adjustment plate, and an adjustment rod is provided on the right side of the upper end of the horizontal plate. The adjustment rod is located on the right side of the connecting plate, and the adjustment rod is located inside the adjustment groove, so as to drive the cleaning brush to move and reset.

[0011] Furthermore, conveying rollers are rotatably connected to the left and right sides of the conveying frame respectively, and the two conveying rollers are connected by a conveyor belt transmission. A conveying motor is arranged on the left side of the front end of the conveying frame, and the rear end of the output shaft of the conveying motor is fixedly connected to the front end of the conveying roller on the left side. The input end of the conveying motor is electrically connected to the output end of the control unit, so as to drive the metal material to move.

[0012] Furthermore, data interfaces are respectively provided on the left and right sides of the front end of the conveyor frame, and the data interfaces are bidirectionally electrically connected to the control unit. The data interfaces are connected to external devices such as computers and mobile phones to establish a data transmission channel.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The splint is driven to rotate forward by the connecting arm, and finally the inner arc surface of the splint is brought into contact with the outer arc surface of the fixing rod, thereby realizing the installation and fixation of the print head. This replaces the traditional method of installing and fixing the print head by fastening bolts, optimizes the fixing method, solves the problem of affecting the stability of the print head due to corrosion and falling off of the fastening bolts, improves the accuracy of printing work, and ensures the printing quality.

[0014] 2. By driving the cleaning brush to perform horizontal reciprocating motion, the cleaning brush cleans the upper surface of the metal material to remove grease, dust or other impurities, ensuring good adhesion of UV ink, solving the problem of blurred images, uneven colors or spots caused by impurities, and ensuring the beauty and professionalism of the printed products.

[0015] 3. By driving the UV lamp to perform horizontal reciprocating motion, it ensures that the surface of the metal material can be evenly irradiated by ultraviolet rays. It can adapt to the surfaces of metal materials of different shapes and sizes, reduce the blind angle of irradiation, and thus achieve a more uniform curing effect, solving the problem of reduced curing quality due to incomplete local drying of UV ink. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the upper side of the present invention; Figure 3 It is a structural schematic diagram of the fixing mechanism of the present invention; Figure 4 It is a structural schematic diagram of the curing mechanism of the present invention; Figure 5 It is a schematic structural diagram of the cleaning mechanism of the present invention.

[0017] In the figure: 1 conveying frame, 2 control unit, 3 protective cover, 4 mounting frame, 5 fixing mechanism, 51 partition plate, 52 vertical pole, 53 connecting arm, 54 clamping plate, 55 electric push rod, 56 push plate, 57 limit rod, 6 curing mechanism, 61 cross bar, 62 vertical plate, 63 ultraviolet irradiation lamp, 64 connecting rod, 65 transmission plate, 66 gear, 67 driving gear, 68 servo motor, 69 half gear, 7 cleaning mechanism, 71 mounting cover, 72 horizontal plate, 73 fixing frame, 74 cleaning brush, 75 connecting plate, 76 driving motor, 77 center wheel, 78 fixing column, 8 mounting rod, 9 cam, 10 adjustment plate, 11 adjustment rod, 12 torsion spring, 13 conveying roller, 14 conveying motor, 15 data interface, 16 fixing rod, 17 printing nozzle, 18 spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-5 The present embodiment provides a metal surface UV printing system, including a conveyor frame 1 and a control unit 2. A protective cover 3 is provided in the middle of the upper end of the conveyor frame 1. A fixing rod 16 is provided inside the protective cover 3. A printing nozzle 17 is provided at the lower end of the fixing rod 16. A mounting frame 4 is provided on the right side of the upper end of the conveyor frame 1, and further includes a fixing mechanism 5, a curing mechanism 6 and a cleaning mechanism 7. The control unit 2 is provided at the front end of the conveyor frame 1, and the input end of the printing nozzle 17 is electrically connected to the output end of the control unit 2. The control unit 2 in the present embodiment adopts a programmable logic controller of the model STM8S207S8T6C.

[0020] The fixing mechanism 5 includes a partition plate 51, a vertical rod 52, a connecting arm 53 and a clamping plate 54. The partition plate 51 is arranged on the upper side of the interior of the protective cover 3. The fixing rod 16 is placed in the mounting groove arranged in the middle of the lower end of the partition plate 51. The rear side of the upper end of the partition plate 51 is rotatably connected with the vertical rod 52. The upper sides of the outer arc surfaces of the vertical rods 52 are respectively provided with connecting arms 53. The front ends of the connecting arms 53 are provided with clamping plates 54. The inner arc surfaces of the clamping plates 54 are in contact with the outer arc surfaces of the fixing rods 16. The fixing mechanism 5 also includes an electric push rod 55, a push plate 56 and a limit rod 57. The electric push rod 55 is arranged on the upper side of the rear wall of the protective cover 3. The front end of the telescopic end of the electric push rod 55 is provided with a push plate 56. The left and right sides of the lower end of the push plate 56 Limit rods 57 are respectively provided on both sides, and limit grooves are respectively provided on the rear side of the upper end of the connecting arm 53, and the lower ends of the limit rods 57 are respectively located inside the vertically adjacent limit grooves. The input ends of the electric push rods 55 are electrically connected to the output ends of the control unit 2, and the clamping plate 54 is driven to rotate forward through the connecting arm 53, and finally the inner arc surface of the clamping plate 54 is contacted with the outer arc surface of the fixing rod 16, thereby realizing the installation and fixation of the print head 17, replacing the traditional method of installing and fixing the print head 17 by fastening bolts, optimizing the fixing method, solving the problem of affecting the stability of the print head 17 due to corrosion and falling off of the fastening bolts, improving the accuracy of printing work, and ensuring printing quality.

[0021] The curing mechanism 6 is arranged at the lower end of the conveying frame 1, and the curing mechanism 6 includes a cross bar 61, a vertical plate 62, an ultraviolet irradiation lamp 63, a connecting rod 64, a transmission plate 65, a gear 66, a driving gear 67, a servo motor 68 and a half gear 69. The cross bar 61 is arranged on the upper side of the inside of the mounting frame 4, and the left and right sides of the outer arc surface of the cross bar 61 are respectively slidably connected with the vertical plates 62, and the vertical plates 62 are slidably connected with the avoidance grooves arranged in the middle part of the lower end of the mounting frame 1. The upper ends of the vertical plates 62 are provided with push rods, and the lower ends of the vertical plates 62 are provided with ultraviolet irradiation lamps 63. The connecting rods 64 are respectively rotatably connected to the front sides of the bottom walls of the mounting frame 4, and the upper sides of the outer arc surfaces of the connecting rods 64 are provided with transmission plates 65. The ends of the transmission plates 65 close to the inner center of the mounting frame 4 are respectively in contact with the outer arc surfaces of the laterally adjacent push rods. A gear 66 is provided in the middle of the outer arc surface 64, and the two gears 66 are meshed and connected. A driving gear 67 is provided on the lower side of the outer arc surface of the right connecting rod 64. The servo motor 68 is arranged on the right side of the lower end of the mounting frame 4. A half gear 69 is provided on the upper end of the output shaft of the servo motor 68. The half gear 69 is installed in conjunction with the driving gear 67. The input end of the servo motor 68 and the ultraviolet lamp 63 are electrically connected to the output end of the control unit 2. By driving the ultraviolet lamp 63 to perform lateral reciprocating motion, it ensures that the surface of the metal material can be evenly irradiated by ultraviolet rays. It can adapt to metal material surfaces of different shapes and sizes, reduce irradiation blind spots, and thus achieve a more uniform curing effect, solving the problem of reduced curing quality due to incomplete local drying of UV ink.

[0022] The cleaning mechanism 7 is arranged inside the mounting frame 4, and the cleaning mechanism 7 includes a mounting cover 71, a transverse plate 72, a fixing frame 73, a cleaning brush 74, a connecting plate 75, a driving motor 76, a center wheel 77 and a fixing column 78. The mounting cover 71 is arranged at the lower end of the conveying frame 1, and a transverse plate 72 is slidably connected in a slide groove arranged on the rear side of the left end of the mounting cover 71, a fixing frame 73 is arranged on the left end of the transverse plate 72, and a cleaning brush 74 is arranged on the upper end of the fixing frame 73. The cleaning brush 74 is located on the upper side of the conveying frame 1, a connecting plate 75 is arranged on the right side of the front end of the transverse plate 72, and a driving motor 76 is arranged on the front side of the lower end of the mounting cover 71. A center wheel 77 is provided at the upper end of the output shaft of the machine 76, and fixing columns 78 are respectively provided on the front and rear sides of the upper end of the center wheel 77. The outer arc surface of the fixing column 78 on the rear side contacts the right surface of the connecting plate 75. The input end of the driving motor 76 is electrically connected to the output end of the control unit 2, and the cleaning brush 74 is driven to perform lateral reciprocating motion, so that the cleaning brush 74 cleans the upper surface of the metal material to remove grease, dust or other impurities, ensure the good adhesion of UV ink, solve the problem of blurred printed images, uneven colors or spots caused by impurities, and ensure the beauty and professionalism of the printed products.

[0023] As a preferred solution of this embodiment, a spring 18 is arranged between the end of the vertical plate 62 away from the inner center of the mounting frame 4 and the inner wall of the mounting frame 4. The springs 18 are respectively sleeved on the outside of the outer side of the cross bar 61. The tension generated by the contraction of the spring 18 drives the ultraviolet lamp 63 to move and reset through the vertical plate 62.

[0024] As a preferred solution of this embodiment, it also includes a torsion spring 12, which is movably mounted on the lower side of the outer arc surface of the left connecting rod 64. The lower end of the torsion spring 12 is fixedly connected to the bottom wall of the mounting frame 4, and the upper end of the torsion spring 12 is fixedly connected to the outer arc surface of the left connecting rod 64. The torsion spring 12 drives the gear 66 on the left to rotate and reset through the left connecting rod 64. The gear 66 on the left drives the connecting rod 64 on the right to rotate and reset through the meshing connection, so that the connecting rod 64 drives the transmission plate 65 to rotate and reset.

[0025] As a preferred solution of this embodiment, the right side of the bottom wall of the mounting cover 71 is rotatably connected to the mounting rod 8, and a cam 9 is provided on the upper side of the outer arc surface of the mounting rod 8, and an adjustment plate 10 is provided on the rear side of the outer arc surface of the cam 9. An adjustment groove is provided on the rear side of the upper end of the adjusting plate 10, and an adjusting rod 11 is provided on the right side of the upper end of the cross plate 72. The adjusting rod 11 is located on the right side of the connecting plate 75, and the adjusting rod 11 is located inside the adjusting groove. The fixed column 78 on the front side drives the cam 9 to rotate backward and reset. At this time, the adjusting rod 11 slides in the limit groove and rotates relative to the limit groove, so that the adjusting plate 10 drives the cross plate 72 to move to the right and reset through the adjusting rod 11, and the cross plate 72 drives the cleaning brush 74 to move to the right and reset through the fixed frame 73.

[0026] As a preferred solution of this embodiment, conveying rollers 13 are rotatably connected to the left and right sides of the conveying frame 1 respectively, and the two conveying rollers 13 are connected by a conveyor belt transmission. A conveying motor 14 is arranged on the left side of the front end of the conveying frame 1, and the rear end of the output shaft of the conveying motor 14 is fixedly connected to the front end of the conveying roller 13 on the left side. The input end of the conveying motor 14 is electrically connected to the output end of the control unit 2. Through the regulation of the control unit 2, the output shaft of the conveying motor 14 drives the conveying roller 13 on the left side to rotate, and the conveying roller 13 on the left side drives the conveying roller 13 on the right side to rotate through the conveyor belt, thereby driving the metal material to move to the right.

[0027] As a preferred solution of this embodiment, data interfaces 15 are respectively provided on the left and right sides of the front end of the conveyor frame 1, and the data interfaces 15 are bidirectionally electrically connected to the control unit 2. The data interfaces 15 are connected to external devices such as computers and mobile phones through the data interfaces 15 to establish a data transmission channel, and then the computers, mobile phones and other devices transmit the printed images, texts or patterns to the control unit 2 through the data interfaces 15.

[0028] The present invention provides a metal surface UV printing system, and its working principle is as follows: During the use of the metal surface UV printing system, the print head 17 is first inserted into the installation groove set in the middle of the lower end of the partition plate 51 through the fixing rod 16, and then the electric push rod 55 starts to operate through the regulation of the control unit 2, and the telescopic end of the electric push rod 55 extends, so that the push plate 56 drives the limit rod 57 to move forward. During the process of the limit rod 57 moving forward, the limit rod 57 slides inside the limit groove and rotates relative to the limit groove, so that the limit rod 57 drives the connecting arm 53 to rotate forward with the vertical rod 52 as the center, and the connecting arm 53 drives the clamping plate 54 to rotate forward. At this time, the distance between the two clamping plates 54 gradually decreases, and finally the inner arc surface of the clamping plate 54 contacts the outer arc surface of the fixing rod 16, thereby realizing the print head. 17 is installed and fixed, and then the metal material that needs to be UV printed is placed on the left side of the upper end of the conveyor belt, and then connected to external computers, mobile phones and other devices through the data interface 15 to establish a data transmission channel, and then the computer, mobile phone and other devices transmit the printed image, text or pattern to the control unit 2 through the data interface 15. When the control unit 2 receives the data, the output shaft of the conveying motor 14 drives the conveying roller 13 on the left to rotate through the control unit 2, and the conveying roller 13 on the left drives the conveying roller 13 on the right to rotate through the conveyor belt, thereby driving the metal material to move to the right. In the process of moving the metal material, the servo motor 76 starts to run through the control unit 2, and the output shaft of the servo motor 76 drives When the movable center wheel 77 rotates, and the fixed post 78 on the rear side contacts the left end of the connecting plate 75, the fixed post 78 pushes the connecting plate 75 to move left, and the connecting plate 75 drives the fixed frame 73 to move left through the cross plate 72, and the fixed frame 73 drives the cleaning brush 74 to move left. At this time, the adjusting rod 11 slides in the limiting groove and rotates relative to the limiting groove, so that the adjusting rod 11 drives the cam 9 to rotate forward through the adjusting plate 10. When the fixed post 78 on the rear side is separated from the connecting plate 75 and the fixed post 78 on the front side contacts the cam 9, the fixed post 78 on the front side drives the cam 9 to rotate backward and reset. At this time, the adjusting rod 11 slides in the limiting groove and rotates relative to the limiting groove, so that the adjusting plate 10 drives the cross plate 72 to move right and reset through the adjusting rod 11. The cleaning brush 74 is driven to move rightward and reset through the fixing frame 73, and then the cleaning brush 74 is driven to perform a transverse reciprocating motion. During the back-and-forth movement of the cleaning brush 74, the bristles of the cleaning brush 74 clean the upper surface of the metal material. When the metal material moves to the inside of the protective cover 3, the control unit 2 controls the print head 17 to start running, and the print head 17 will spray UV ink on the metal surface to form the required image, text or pattern. When the metal material after UV printing moves to the lower side of the mounting frame 4, the control unit 2 controls the ultraviolet irradiation lamp 63 and the servo motor 68 to start running. During the operation of the ultraviolet irradiation lamp 63, the output shaft of the servo motor 68 drives the half gear 69 to rotate.When the half gear 69 is meshed with the driving gear 67, the driving gear 67 drives the right gear 66 to rotate through the right connecting rod 64, and the right gear 66 drives the left gear 66 to rotate through the meshing connection, thereby driving the two connecting rods 64 to rotate. The two connecting rods 64 rotate in opposite directions. When the connecting rod 64 rotates, it drives the transmission plate 65 to rotate toward the side close to the inner center of the mounting frame 4, and the torsion spring 12 is twisted. At this time, the push rod receives the thrust of the transmission plate 65 and starts to drive the ultraviolet irradiation lamp 63 to move through the vertical plate 62, and the spring 18 extends. When the half gear 69 is meshed with the driving gear When the wheel 67 is separated, the torsion spring 12 drives the left gear 66 to rotate and reset through the left connecting rod 64, and the left gear 66 drives the right gear 66 to rotate and reset through the meshing connection, so that the gear 66 drives the transmission plate 65 to rotate and reset through the connecting rod 64. At this time, the tension generated by the contraction of the spring 18 drives the ultraviolet irradiation lamp 63 to move and reset through the vertical plate 62, and then drives the ultraviolet irradiation lamp 63 to perform horizontal reciprocating motion. The ultraviolet irradiation lamp 63 can emit high-intensity ultraviolet rays to react chemically with the UV ink on the surface of the metal material, so that the UV ink is quickly solidified, thereby achieving a drying effect.

[0029] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A metal surface UV printing system, comprising a conveyor frame (1), a protective cover (3) is arranged in the middle of the upper end of the conveyor frame (1), a fixing rod (16) is arranged inside the protective cover (3), a printing nozzle (17) is arranged at the lower end of the fixing rod (16), and a mounting frame (4) is arranged on the right side of the upper end of the conveyor frame (1), characterized in that: It also includes a fixing mechanism (5), a curing mechanism (6) and a cleaning mechanism (7); The fixing mechanism (5) comprises a partition plate (51), a vertical rod (52), a connecting arm (53) and a clamping plate (54), wherein the partition plate (51) is arranged on the upper side of the interior of the protective cover (3), a fixing rod (16) is placed in a mounting groove arranged in the middle of the lower end of the partition plate (51), the rear side of the upper end of the partition plate (51) is rotatably connected to the vertical rod (52), connecting arms (53) are respectively arranged on the upper side of the outer arc surface of the vertical rod (52), and clamping plates (54) are arranged at the front ends of the connecting arms (53), and the inner arc surfaces of the clamping plates (54) are in contact with the outer arc surface of the fixing rod (16); The curing mechanism (6) is arranged at the lower end of the conveying frame (1); The cleaning mechanism (7) is arranged inside the mounting frame (4).

2. A metal surface UV printing system according to claim 1, characterized in that: The fixing mechanism (5) further comprises an electric push rod (55), a push plate (56) and a limit rod (57); the electric push rod (55) is arranged on the upper side of the rear wall of the protective cover (3); a push plate (56) is arranged at the front end of the telescopic end of the electric push rod (55); limit rods (57) are arranged on the left and right sides of the lower end of the push plate (56); limit grooves are arranged on the rear side of the upper end of the connecting arm (53); and the lower ends of the limit rods (57) are respectively located inside the limit grooves adjacent to each other in the vertical direction.

3. A metal surface UV printing system according to claim 1, characterized in that: The curing mechanism (6) comprises a cross bar (61), a vertical plate (62), an ultraviolet irradiation lamp (63), a connecting rod (64), a transmission plate (65), a gear (66), a driving gear (67), a servo motor (68) and a half gear (69), wherein the cross bar (61) is arranged on the upper side of the interior of the mounting frame (4), and the vertical plates (62) are slidably connected to the left and right sides of the outer arc surface of the cross bar (61), respectively, and the vertical plates (62) are slidably connected to the avoidance grooves arranged in the middle of the lower end of the mounting frame (1), the upper ends of the vertical plates (62) are arranged with push rods, and the lower ends of the vertical plates (62) are arranged with ultraviolet irradiation lamps (63), and the connecting rods (64) are respectively rotated. The connecting rod (64) is movably connected to the front side of the bottom wall of the mounting frame (4), and a transmission plate (65) is provided on the upper side of the outer arc surface of the connecting rod (64). One end of the transmission plate (65) close to the inner center of the mounting frame (4) contacts the outer arc surface of the push rods adjacent to each other in the transverse direction. A gear (66) is provided in the middle of the outer arc surface of the connecting rod (64), and the two gears (66) are meshed and connected. A driving gear (67) is provided on the lower side of the outer arc surface of the right connecting rod (64). The servo motor (68) is arranged on the right side of the lower end of the mounting frame (4), and a half gear (69) is provided on the upper end of the output shaft of the servo motor (68). The half gear (69) is installed in coordination with the driving gear (67).

4. A metal surface UV printing system according to claim 1, characterized in that: The cleaning mechanism (7) comprises a mounting cover (71), a transverse plate (72), a fixing frame (73), a cleaning brush (74), a connecting plate (75), a driving motor (76), a center wheel (77) and a fixing column (78), wherein the mounting cover (71) is arranged at the lower end of the conveying frame (1), the transverse plate (72) is slidably connected in a slide groove arranged at the rear side of the left end of the mounting cover (71), the fixing frame (73) is arranged at the left end of the transverse plate (72), and the upper end of the fixing frame (73) is provided with a plurality of connecting plates (75), wherein the connecting plates (75) are provided with a plurality of connecting plates (76), wherein the connecting plates (75) are provided with a plurality of connecting plates (7 ... A cleaning brush (74) is provided, and the cleaning brush (74) is located on the upper side of the conveying frame (1). A connecting plate (75) is provided on the right side of the front end of the transverse plate (72). A driving motor (76) is provided on the front side of the lower end of the mounting cover (71). A center wheel (77) is provided on the upper end of the output shaft of the driving motor (76). Fixed columns (78) are provided on the front and rear sides of the upper end of the center wheel (77), respectively. The outer arc surface of the fixed column (78) on the rear side contacts the right surface of the connecting plate (75).

5. A metal surface UV printing system according to claim 3, characterized in that: A spring (18) is provided between one end of the vertical plate (62) away from the inner center of the mounting frame (4) and the inner wall of the mounting frame (4), and the springs (18) are respectively sleeved on the outside of the outer side of the cross bar (61).

6. A metal surface UV printing system according to claim 3, characterized in that: It also includes a torsion spring (12), which is movably sleeved on the lower side of the outer arc surface of the left connecting rod (64), the lower end of the torsion spring (12) is fixedly connected to the bottom wall of the mounting frame (4), and the upper end of the torsion spring (12) is fixedly connected to the outer arc surface of the left connecting rod (64).

7. A metal surface UV printing system according to claim 4, characterized in that: The right side of the bottom wall of the mounting cover (71) is rotatably connected to a mounting rod (8); a cam (9) is provided on the upper side of the outer arc surface of the mounting rod (8); an adjustment plate (10) is provided on the rear side of the outer arc surface of the cam (9); an adjustment groove is provided on the rear side of the upper end of the adjustment plate (10); an adjustment rod (11) is provided on the right side of the upper end of the horizontal plate (72); the adjustment rod (11) is located on the right side of the connecting plate (75); and the adjustment rod (11) is located inside the adjustment groove.

8. A metal surface UV printing system according to claim 1, characterized in that: The left and right sides of the conveying frame (1) are rotatably connected to conveying rollers (13), and the two conveying rollers (13) are connected via a conveyor belt transmission. A conveying motor (14) is provided on the left side of the front end of the conveying frame (1), and the rear end of the output shaft of the conveying motor (14) is fixedly connected to the front end of the conveying roller (13) on the left side.

9. A metal surface UV printing system according to claim 1, characterized in that: Data interfaces (15) are respectively provided on the left and right sides of the front end of the conveying frame (1).

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