Device for pre-curing tinplate two-dimensional code

Abstract

The utility model discloses a device for pre-curing a tinplate two-dimensional code, which relates to the technical field of tinplate processing, and comprises a roller feeding frame and a material conveyor which are distributed in an L shape, the roller feeding frame is positioned at one end of the material conveyor, and the roller feeding frame is positioned at the other end of the material conveyor. An automatic feeder is further arranged above the joint of the roller feeding frame and the material conveyor, and the end of the automatic feeder is in transmission fit with a feeding driver. Wherein a self-adaptive laser marking device, an icon code spraying device and an ultraviolet curing device are sequentially arranged above the material conveyor in the moving direction of materials, and the self-adaptive laser marking device is located on the side close to the automatic feeder; according to the utility model, through the sliding fit between the X-axis sliding rail and the limiting sliding seat, when the material conveyor drives the material to move, the gantry bracket can drive the laser marking machine to synchronously move along with the moving direction of the material, the marking operation is completed in the moving process, and the normal transmission of the material does not need to be suspended, so that the marking efficiency is improved.

Description

Technical Field

[0001] This utility model specifically relates to the field of tinplate processing technology, and more specifically to a device for pre-curing tinplate QR codes. Background Technology

[0002] Tinplate is a type of tin-plated thin steel sheet with good corrosion resistance, sealing properties, strength, and formability. It is widely used in many fields. Tinplate is made by plating a layer of tin onto the surface of a thin steel sheet. Its main component is iron. The steel substrate is usually made of low-carbon steel, which has good toughness and processing performance, while the tin layer gives tinplate excellent corrosion resistance and a beautiful appearance.

[0003] To facilitate product classification and sales for businesses after tinplate production, brand and specification markings, or QR codes or barcodes, are typically affixed to the tinplate. This gives each product a unique identifier, making it easy to scan and identify during logistics, warehousing, and sales, thus achieving automated management, improving work efficiency, and also helping to combat counterfeit and substandard products.

[0004] However, in practice, it has been noted that marking or coding tinplate currently requires placing the tinplate under a dedicated marking or coding device. If a conveyor belt is used to transport the tinplate, the conveyor needs to be paused until the marking or coding process is completed before resuming transport. This consumes a significant amount of time for marking and coding, affecting the normal transport of materials and resulting in low efficiency. Furthermore, UV curing is required after marking, which also consumes a significant amount of time and affects processing efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for pre-curing tinplate QR codes. Through the sliding cooperation between the X-axis slide rail and the limiting slide block, the gantry bracket can drive the laser marking machine to move synchronously with the material, completing the marking operation during the movement without interrupting normal material transport, thereby improving marking efficiency. This addresses the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for pre-curing tinplate QR codes includes an L-shaped roller feeder and a material conveyor. The roller feeder is located at one end of the material conveyor, and an automatic feeder is provided above the connection between the roller feeder and the material conveyor. The end of the automatic feeder is driven by a feeding driver.

[0008] The material conveyor is equipped with an adaptive laser marking device, an icon inkjet printer, and an ultraviolet curing device in sequence above it along the direction of material movement. The adaptive laser marking device is located on the side closest to the automatic feeder.

[0009] The adaptive laser marking device includes an inclined laser marking machine with a gantry support movably connected to the bottom of the laser marking machine. Both ends of the gantry support are fixedly connected to limit slides. A transmission shaft is slidably fitted in the middle of each limit slide, and the transmission shaft is fixedly connected to the material conveyor through a fixed base plate at the bottom.

[0010] As a further technical solution of this utility model, the ends of the two fixed base plates are fixedly connected to a transverse mounting frame, and a lifting electric cylinder is fixedly connected to the transverse mounting frame, and the output rod end of the lifting electric cylinder is fixedly connected to the gantry bracket.

[0011] As a further technical solution of this utility model, a U-shaped sliding rod seat and a perforated sliding plate are provided between the gantry support and the laser marking machine, wherein the perforated sliding plate is fixedly connected to the laser marking machine, and both ends of the U-shaped sliding rod seat are fixedly connected to the gantry support.

[0012] One end of the U-shaped slide block is also fixedly connected to a Y-axis moving electric cylinder, and the end of the Y-axis moving electric cylinder is fixedly connected to the perforated slide plate.

[0013] As a further technical solution of this utility model, the automatic feeder has symmetrically arranged suspended supports. The two ends of the suspended supports are fixedly connected to the material conveyor and the roller feeder, respectively. The end of the suspended support away from the roller feeder is movably connected to a transmission shaft, and both ends of the transmission shaft pass through the roller feeder and are fixedly connected to synchronous pulleys.

[0014] As a further technical solution of this utility model, the synchronous pulley is provided in multiple forms, and two are arranged as a group. One of the synchronous pulleys is connected to the transmission shaft at the end of the suspended bracket, while the other synchronous pulley is movably connected to the other end of the suspended bracket.

[0015] As a further technical solution of this utility model, each of the above-mentioned suspended supports is slidably fitted with a side sliding seat, and a lifting crossbeam is movably connected between the two above-mentioned suspended supports. A material suction cup is fixedly connected to the side of the lifting crossbeam, and a lifting electric cylinder is fixedly connected to both ends of the lifting crossbeam. The end of the lifting electric cylinder away from the lifting crossbeam is fixedly connected to the side sliding seat.

[0016] As a further technical solution of this utility model, the feeding driver has a corner bracket fixedly connected to the side of the material conveyor, a bearing seat fixedly connected above the corner bracket, and a transmission shaft passing through the bearing seat, while a rotating pulley fixedly connected to the transmission shaft is provided on the side of the bearing seat.

[0017] A servo motor is fixedly connected to the side of the corner bracket, and a drive pulley is installed through the end of the servo motor through the corner bracket, and the drive pulley is in transmission cooperation with the rotating pulley.

[0018] As a further technical solution of this utility model, the icon inkjet printer includes a horizontal sliding frame, and support plates are provided on both sides of the horizontal sliding frame. Each support plate is fixedly connected to the side of the corresponding material conveyor. Threaded screws and symmetrical limiting slide rods are provided between the horizontal sliding frame and the support plates.

[0019] As a further technical solution of this utility model, the threaded rod between the two support plates is movably connected to the support plate, and the end of the threaded rod passes through the support plate and is connected to the transverse adjustment motor fixed to the side of the support plate, while both ends of the limiting slide rod are fixedly connected to the support plate.

[0020] The threaded screw and the limiting slide rod respectively pass through the transverse sliding frame, and the threaded screw and the transverse sliding frame are threadedly engaged.

[0021] As a further technical solution of this utility model, the threaded screw end on the inner side of the transverse sliding frame passes through the transverse sliding frame and is fixed to the longitudinal adjustment motor drive connection of the threaded screw end, and both ends of the limiting slide rod in the transverse sliding frame are fixedly connected to the transverse sliding frame.

[0022] The outer sides of the threaded screw and the limiting slide rod are provided with lifting slide blocks, wherein the lifting slide blocks are slidably engaged with the limiting slide rod, and the lifting slide blocks are threadedly engaged with the threaded screw.

[0023] The lifting slide is fixedly connected to a small character inkjet printer at the end away from the transverse sliding frame, and the small character inkjet printer is located above the material conveyor.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] 1. In this utility model, the Y-axis moving electric cylinder can push the perforated slide plate to slide on the side of the U-shaped slide bar seat, thereby adjusting the position of the laser marking machine on the material conveyor, so that it can perform marking operations at any position of the material. Furthermore, through the sliding cooperation between the X-axis slide rail and the limiting slide, the X-axis moving electric cylinder can push the gantry bracket to slide above the fixed base plate. When the material conveyor moves the material, the gantry bracket can drive the laser marking machine to move synchronously with the direction of material movement, completing the marking operation during the movement without interrupting the normal material transmission, thereby improving marking efficiency.

[0026] 2. This utility model utilizes the transmission between a servo motor and a rotating pulley to drive the transmission shaft to rotate. The transmission shaft then transmits power to the synchronous pulleys on both sides. The rotation of the synchronous belt causes the side sliding seat to slide on the suspended bracket. Finally, in conjunction with a material suction cup that can move up and down, the materials on the roller feeder can be moved one by one onto the material conveyor. Since the material conveyor does not stop during operation, the gap between each material can be made the same, ensuring that the adaptive laser marking device and the icon inkjet printer have enough time to reset after operation.

[0027] 3. In this utility model, the horizontal adjustment motor drives the threaded screw between the support plates to rotate, so that the moving speed of the horizontal sliding frame can be synchronized with the material conveyor, thereby ensuring the accuracy and clarity of the inkjet printing. Furthermore, the inkjet printing process will not affect the normal movement of the material. In addition, the threaded screw between the horizontal sliding frames and the threaded engagement of the lifting slide can drive the small character inkjet printer to move up and down, and the height of the small character inkjet printer can be adjusted according to the size of the pattern. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model in use.

[0029] Figure 2 This utility model Figure 1 Another perspective view.

[0030] Figure 3 This is a three-dimensional structural diagram of the automatic feeder in this utility model.

[0031] Figure 4 This is a three-dimensional structural diagram of the adaptive laser marking device in this utility model.

[0032] Figure 5 This utility model Figure 4 Another perspective view.

[0033] Figure 6 This is a three-dimensional structural diagram of the icon inkjet printer in this utility model.

[0034] Figure 7 This utility model Figure 6 Another perspective view.

[0035] In the picture:

[0036] Roller feeder-1, Material conveyor-2, Automatic feeder-3, Suspended support-31, Drive shaft-32, Synchronous pulley-33, Side sliding seat-34, Lifting electric cylinder-35, Lifting crossbeam-36, Material suction cup-37, Negative pressure dust collection hood-4, Adaptive laser marking device-5, Fixed base plate-51, X-axis slide rail-52, Gantry support-53, Limiting slide seat-54, X-axis moving electric cylinder-55, Laser marking machine-56, U-shaped 57. Slide bar seat, 58. Y-axis moving electric cylinder, 59. Perforated slide plate, 6. UV curing unit, 7. Icon inkjet printer, 71. Horizontal sliding frame, 72. Support plate, 73. Horizontal adjustment motor, 74. Threaded screw, 75. Limit slide bar, 76. Vertical adjustment motor, 77. Lifting slide, 78. Small character inkjet printer, 81. Feeding driver, 82. Servo motor, 83. Corner bracket, 84. Bearing seat, 85. Rotary pulley. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] Please see Figure 1-7 This utility model provides a device for pre-curing tinplate QR codes, including an L-shaped roller feeder 1 and a material conveyor 2. The roller feeder 1 is located at one end of the material conveyor 2, and an automatic feeder 3 is provided above the connection between the roller feeder 1 and the material conveyor 2. The end of the automatic feeder 3 is driven by a feeding driver 8.

[0039] Among them, an adaptive laser marking device 5, an icon inkjet printer 7 and an ultraviolet curing device 6 are arranged sequentially above the material conveyor 2 along the material movement direction. The adaptive laser marking device 5 is located on the side close to the automatic feeder 3.

[0040] The adaptive laser marking device 5 includes an inclined laser marking machine 56. A gantry support 53 is movably connected to the bottom of the laser marking machine 56. Limiting slides 54 are fixedly connected to both ends of the gantry support 53. A transmission shaft 32 is slidably fitted in the middle of each limiting slide 54. The transmission shaft 32 is fixedly connected to the material conveyor 2 through a fixed base plate 51 at the bottom.

[0041] Furthermore, the ends of the two fixed base plates 51 are fixedly connected to a transverse mounting bracket, and a lifting electric cylinder 35 is fixedly connected to the transverse mounting bracket, and the output rod end of the lifting electric cylinder 35 is fixedly connected to the gantry bracket 53.

[0042] More specifically, a U-shaped slide bar seat 57 and a perforated slide plate 59 are provided between the gantry support 53 and the laser marking machine 56 for sliding engagement. The perforated slide plate 59 is fixedly connected to the laser marking machine 56, and both ends of the U-shaped slide bar seat 57 are fixedly connected to the gantry support 53.

[0043] One end of the U-shaped slide block 57 is also fixedly connected to a Y-axis moving electric cylinder 58, and the end of the Y-axis moving electric cylinder 58 is fixedly connected to the perforated slide plate 59.

[0044] By adopting the above technical solution, the Y-axis moving electric cylinder 58 can push the perforated slide plate 59 to slide on the side of the U-shaped slide block seat 57, thereby adjusting the position of the laser marking machine 56 on the material conveyor 2, so that it can perform marking operations at any position of the material. Furthermore, through the sliding cooperation between the X-axis slide rail 52 and the limiting slide block 54, the X-axis moving electric cylinder 55 can push the gantry bracket 53 to slide above the fixed base plate 51. When the material conveyor 2 moves the material, the gantry bracket 53 can drive the laser marking machine 56 to move synchronously with the direction of the material movement, completing the marking operation during the movement without interrupting the normal material transmission, thereby improving the marking efficiency.

[0045] Furthermore, the automatic feeder 3 has symmetrically arranged suspended supports 31. The two ends of the suspended supports 31 are fixedly connected to the material conveyor 2 and the roller feeder 1, respectively. The end of the suspended supports 31 away from the roller feeder 1 is movably connected to a transmission shaft 32, and both ends of the transmission shaft 32 are fixedly connected to synchronous pulleys 33 through the roller feeder 1.

[0046] Furthermore, the synchronous pulleys 33 are provided in multiples, and are arranged in pairs. One of the synchronous pulleys 33 is connected to the transmission shaft 32 at the end of the suspension bracket 31, while the other synchronous pulley 33 is movably connected to the other end of the suspension bracket 31.

[0047] More specifically, each of the aforementioned suspended supports 31 is slidably fitted with a side sliding seat 34, and a lifting crossbeam 36 is movably connected between the two aforementioned suspended supports 31. A material suction cup 37 is fixedly connected to the side of the lifting crossbeam 36, and a lifting electric cylinder 35 is fixedly connected to both ends of the lifting crossbeam 36. The end of the lifting electric cylinder 35 away from the lifting crossbeam 36 is fixedly connected to the side sliding seat 34.

[0048] Furthermore, the feeding driver 8 has a corner bracket 82 fixedly connected to the side of the material conveyor 2. A bearing seat 83 is fixedly connected above the corner bracket 82, and the transmission shaft 32 passes through the bearing seat 83. A rotating pulley 84 fixedly connected to the transmission shaft 32 is provided on the side of the bearing seat 83.

[0049] A servo motor 81 is fixedly connected to the side of the corner bracket 82, and a drive pulley is installed through the end of the servo motor 81 through the corner bracket 82. The drive pulley is in transmission cooperation with the rotating pulley 84.

[0050] By adopting the above technical solution, the servo motor 81 and the rotating pulley 84 drive the drive shaft 32 to rotate through the transmission cooperation between them. The drive shaft 32 transmits power to the synchronous pulleys 33 on both sides. The rotation of the synchronous belt drives the side sliding seat 34 to slide on the suspended bracket 31. Finally, with the material suction cup 37 that can move up and down, the materials on the roller feeder 1 can be moved one by one to the material conveyor 2. Since the material conveyor 2 does not stop during operation, the gap between each material can be made the same, ensuring that the adaptive laser marking device 5 and the icon inkjet printer 7 have enough time to reset after operation.

[0051] Furthermore, the icon inkjet printer 7 includes a horizontal sliding frame 71, with supporting plates 72 on both sides of the horizontal sliding frame 71. Each supporting plate 72 is fixedly connected to the side of the material conveyor 2. Threaded screws 74 and symmetrical limiting slides 75 are provided between the horizontal sliding frame 71 and the supporting plates 72.

[0052] Furthermore, the threaded rod 74 between the two support plates 72 is movably connected to the support plate 72, and the end of the threaded rod 74 passes through the support plate 72 and is connected to the transverse adjustment motor 73 fixed on the side of the support plate 72. Both ends of the limiting slide rod 75 are fixedly connected to the support plate 72.

[0053] The threaded screw 74 and the limiting slide bar 75 respectively pass through the transverse sliding frame 71, and the threaded screw 74 and the transverse sliding frame 71 are threadedly engaged.

[0054] Furthermore, the end of the threaded rod 74 on the inner side of the transverse sliding frame 71 passes through the transverse sliding frame 71 and is connected to the longitudinal adjusting motor 76 fixed to the end of the threaded rod 74, and both ends of the limiting slide rod 75 in the transverse sliding frame 71 are fixedly connected to the transverse sliding frame 71.

[0055] The outer sides of the threaded screw 74 and the limiting slide rod 75 are provided with a lifting slide 77, wherein the lifting slide 77 is slidably engaged with the limiting slide rod 75, and the lifting slide 77 is threadedly engaged with the threaded screw 74.

[0056] The lifting slide 77 is fixedly connected to a small character inkjet printer 78 at the end away from the transverse sliding frame 71, and the small character inkjet printer 78 is located above the material conveyor 2.

[0057] By adopting the above technical solution, the horizontal adjustment motor 73 drives the threaded screw 74 between the support plates 72 to rotate, so that the moving speed of the horizontal sliding frame 71 can be synchronized with the material conveyor 2, thereby ensuring the accuracy and clarity of the inkjet printing, and the normal movement of the material will not be affected during the inkjet printing process. Furthermore, the threaded screw 74 between the horizontal sliding frames 71 and the threaded engagement with the lifting slide 77 can drive the small character inkjet printer 78 to move up and down, and the height of the small character inkjet printer 78 can be adjusted according to the size of the pattern.

[0058] Furthermore, the outer side of the drive pulley at the end of the servo motor 81 is provided with a synchronous belt, and the drive pulley is driven and engaged with the rotating pulley 84 through the synchronous belt. The toothed belt is also engaged with each group of synchronous pulleys 33, and the toothed belt is fixedly connected to the side sliding seat 34.

[0059] More specifically, the servo motor 81 transmits power to the rotating pulley 84 via the synchronous belt, causing the rotating pulley 84 to drive the transmission shaft 32 to rotate. The synchronous pulleys 33 at both ends of the transmission shaft 32 drive the toothed belt to move, thereby causing the side sliding seat 34 to slide on the suspended bracket 31, thus placing the materials on the roller feeder 1 one by one onto the material conveyor 2.

[0060] Furthermore, the roller feeder 1 has an inclined support frame, on which rollers are movably connected in a rectangular array. The end of the support frame near the material conveyor 2 is inclined downward. When the material is placed on the rollers on the support frame, the rolling motion will cause the material to move towards the material conveyor 2 until it contacts the side of the material conveyor 2, making it easier for the automatic feeder 3 to pick up the material.

[0061] The working principle of this utility model is as follows: In use, the material is first placed on the rollers on the support frame. Due to the inclination of the support frame, the rolling motion causes the material to move towards the material conveyor 2 until the side of the material contacts the side of the material conveyor 2. Then, an automatic feeding operation is performed. The servo motor 81 transmits power to the rotating pulley 84 via a synchronous belt, causing the rotating pulley 84 to drive the transmission shaft 32 to rotate. The synchronous pulleys 33 at both ends of the transmission shaft 32 drive the toothed belt to move, thereby causing the side sliding seat 34 to slide on the suspended bracket 31. The side sliding seat 34 moves the material suction cup 37 on the side of the lifting crossbeam 36 above the material. The lifting cylinder 35 on the side sliding seat 34 drives the lifting crossbeam 36 and the material suction cup 37 to move downward, so that the material suction cup 37 adheres to the surface of the material. Then the lifting cylinder 35 pushes the lifting crossbeam 36 to move upward, and the material suction cup 37 on the side of the lifting crossbeam 36 lifts the material. At this time, the servo motor 81 rotates in the opposite direction, so that the side sliding seat 34 moves closer to the material conveyor 2 until the material below the material suction cup 37 is above the material conveyor 2. Then the lifting cylinder 35 drives the lifting crossbeam 36 and the material suction cup 37 to move downward again, placing the material on the material conveyor 2. The material conveyor 2 then drives the material to continue moving.

[0062] When the material passes under the adaptive laser marking machine 5, the Y-axis moving electric cylinder 58 pushes the perforated slide plate 59 to slide back and forth on the U-shaped slide block 57, thereby adjusting the position of the laser marking machine 56 above the material. At the same time, through the sliding cooperation between the X-axis slide rail 52 and the limit slide block 54, the X-axis moving electric cylinder 55 can drive the gantry bracket 53 to move along the direction of material movement, so that the marking operation is completed while the material is moving, and the entire process does not require the material to stop, thereby ensuring processing efficiency.

[0063] When the material passes under the logo inkjet printer 7, the horizontal adjustment motor 73 drives the threaded screw 74 between the support plates 72 to rotate, so that the moving speed of the horizontal sliding frame 71 can be synchronized with the material conveyor 2, thereby ensuring the accuracy and clarity of the inkjet printing. In addition, the threaded screw 74 between the horizontal sliding frames 71 and the threaded engagement with the lifting slide 77 can drive the small character inkjet printer 78 to move up and down, adjusting the distance between the small character inkjet printer 78 and the material. Finally, the material passes through the inside of the ultraviolet curing unit 6, and the ultraviolet rays in the ultraviolet curing unit 6 irradiate the material, causing the pattern on the surface of the material to cure quickly.

[0064] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An apparatus for pre-curing tinplate QR code, characterized in that: It includes an L-shaped roller feeder (1) and a material conveyor (2). The roller feeder (1) is located at one end of the material conveyor (2), and an automatic feeder (3) is provided above the connection between the roller feeder (1) and the material conveyor (2). The end of the automatic feeder (3) is driven by a feeding driver (8). Among them, an adaptive laser marking device (5), an icon inkjet printer (7) and an ultraviolet curing device (6) are arranged sequentially above the material conveyor (2) along the direction of material movement. The adaptive laser marking device (5) is located on the side close to the automatic feeder (3). The adaptive laser marking device (5) includes a laser marking machine (56) set at an angle. A gantry bracket (53) is movably connected to the bottom of the laser marking machine (56). Both ends of the gantry bracket (53) are fixedly connected to limit slides (54). A transmission shaft (32) is slidably fitted in the middle of each limit slide (54). The transmission shaft (32) is fixedly connected to the material conveyor (2) through a fixed base plate (51) set at the bottom.

2. The apparatus for pre-hardening tinplate QR code according to claim 1, characterized in that: The two fixed base plates (51) are fixedly connected to the ends of a horizontal mounting bracket, and a lifting electric cylinder (35) is fixedly connected to the horizontal mounting bracket, and the output rod end of the lifting electric cylinder (35) is fixedly connected to the gantry bracket (53).

3. The apparatus for pre-hardening tinplate QR code according to claim 2, characterized in that: The gantry support (53) and the laser marking machine (56) are provided with a sliding U-shaped slide bar seat (57) and a perforated slide plate (59), wherein the perforated slide plate (59) is fixedly connected to the laser marking machine (56), and the two ends of the U-shaped slide bar seat (57) are fixedly connected to the gantry support (53); One end of the U-shaped slide block (57) is also fixedly connected to a Y-axis moving electric cylinder (58), and the end of the Y-axis moving electric cylinder (58) is fixedly connected to the perforated slide plate (59).

4. The apparatus for pre-hardening tinplate QR code according to claim 3, characterized in that: The automatic feeder (3) has a symmetrically arranged suspended bracket (31). The two ends of the suspended bracket (31) are fixedly connected to the material conveyor (2) and the roller feeder (1), respectively. The end of the suspended bracket (31) away from the roller feeder (1) is movably connected to a transmission shaft (32), and both ends of the transmission shaft (32) are fixedly connected to a synchronous pulley (33) through the roller feeder (1).

5. The apparatus for pre-hardening tinplate QR code according to claim 4, characterized in that: The synchronous pulleys (33) are provided in multiples, and are arranged in pairs. One of the synchronous pulleys (33) is connected to the transmission shaft (32) at the end of the suspension bracket (31), while the other synchronous pulley (33) is movably connected to the other end of the suspension bracket (31).

6. The apparatus for pre-hardening tinplate QR code according to claim 5, characterized in that: Each of the aforementioned suspended supports (31) is slidably fitted with a side sliding seat (34), and a lifting crossbeam (36) is movably connected between the two aforementioned suspended supports (31). A material suction cup (37) is fixedly connected to the side of the lifting crossbeam (36), and a lifting electric cylinder (35) is fixedly connected to both ends of the lifting crossbeam (36). The end of the lifting electric cylinder (35) away from the lifting crossbeam (36) is fixedly connected to the side sliding seat (34).

7. The apparatus for pre-hardening tinplate QR code according to claim 6, characterized in that: The feeding driver (8) has a corner bracket (82) fixedly connected to the side of the material conveyor (2). A bearing seat (83) is fixedly connected above the corner bracket (82), and the transmission shaft (32) passes through the bearing seat (83). A rotating pulley (84) fixedly connected to the transmission shaft (32) is provided on the side of the bearing seat (83). A servo motor (81) is fixedly connected to the side of the corner bracket (82), and a drive pulley is installed through the corner bracket (82) at the end of the servo motor (81), and the drive pulley is in transmission cooperation with the rotating pulley (84).

8. The apparatus for pre-hardening tinplate QR code according to claim 7, characterized in that: The icon inkjet printer (7) includes a horizontal sliding frame (71), and a support plate (72) is provided on both sides of the horizontal sliding frame (71). Each support plate (72) is fixedly connected to the side of the corresponding material conveyor (2). A threaded screw (74) and a symmetrical limiting slide rod (75) are provided between the horizontal sliding frame (71) and the support plate (72).

9. The device for pre-curing tinplate QR codes according to claim 8, characterized in that: The threaded rod (74) between the two support plates (72) is movably connected to the support plate (72), and the end of the threaded rod (74) passes through the support plate (72) and is connected to the transverse adjustment motor (73) fixed on the side of the support plate (72). Both ends of the limiting slide rod (75) are fixedly connected to the support plate (72). The threaded screw (74) and the limiting slide bar (75) respectively pass through the transverse sliding frame (71), and the threaded screw (74) and the transverse sliding frame (71) are threadedly engaged.

10. The apparatus for pre-hardening tin cans with QR codes according to claim 9, characterized in that: The end of the threaded rod (74) inside the transverse sliding frame (71) passes through the transverse sliding frame (71) and is connected to the longitudinal adjusting motor (76) fixed at the end of the threaded rod (74). Both ends of the limiting slide rod (75) in the transverse sliding frame (71) are fixedly connected to the transverse sliding frame (71). The threaded screw (74) and the limiting slide (75) are connected by a lifting slide (77), wherein the lifting slide (77) and the limiting slide (75) are slidably engaged, and the lifting slide (77) and the threaded screw (74) are threadedly engaged. The lifting slide (77) is fixedly connected to a small character inkjet printer (78) at the end away from the transverse sliding frame (71), and the small character inkjet printer (78) is located above the material conveyor (2).

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