Drawer-type split belt conveyor mechanism of license plate hot stamping machine

Abstract

This utility model discloses a drawer-type split belt conveyor mechanism for a license plate hot stamping machine, including a worktable (1). The worktable (1) is provided with a feeding rack (2), a hot stamping rack (3), and an output rack (4) in sequence according to the license plate conveying direction. The feeding rack (2) contains a drawer-type feeding conveyor belt unit (5), the hot stamping rack (3) contains an auxiliary transmission roller (6) that works in conjunction with the hot stamping roller, and the output rack (4) contains an output conveyor belt (7). This utility model, through its split belt conveyor structure, reduces the cost of conveyor belt replacement and effectively improves the stability of the hot stamping pressure, ensuring the quality of the license plate hot stamping.

Description

Technical Field

[0001] This utility model relates to the field of license plate hot stamping equipment, and in particular to a drawer-type split belt conveyor mechanism for a license plate hot stamping machine. Background Technology

[0002] A license plate hot stamping machine heats an upper rubber roller using a heating unit, and then transfers and fixes the hot stamping film onto the license plate surface using the rolling action between the upper rubber roller and the lower steel roller, thus achieving hot stamping. A conveyor mechanism transports the license plate to the hot stamping station. For example, Chinese utility model patent CN223187218U discloses a manual hot stamping mechanism, including a worktable, an unwinding roller, a rewinding roller, and a hot stamping assembly. The hot stamping assembly is located between the unwinding roller and the rewinding roller, both of which are rotatably connected to the worktable. A conveyor belt is also included. A first conveyor roller and a second conveyor roller are rotatably connected to both ends of the worktable. The conveyor belt is tensioned by the first and second conveyor rollers. A support plate is fixedly connected to the worktable, supporting the conveyor belt and located between the conveyor belt and the hot stamping assembly, facilitating the removal of the license plate from the worktable.

[0003] However, the aforementioned existing technologies have certain shortcomings in practical applications: Firstly, since the corresponding section of the conveyor belt to be hot-stamped needs to be close to the hot-stamping component to ensure the accuracy of the license plate hot-stamping position, and the hot-stamping component generates high temperatures during operation, the high-temperature environment directly affects the corresponding section of the conveyor belt, which can easily lead to aging and deformation of the conveyor belt. Since most existing conveyor belts are integral structures, once the corresponding section of the belt to be hot-stamped is damaged, the entire conveyor belt needs to be disassembled and replaced, which not only increases the replacement cost of the conveyor belt, but also causes equipment downtime due to the long replacement process, affecting production efficiency. Secondly, the existing technology uses a support plate to support the conveyor belt in the hot-stamping area to ensure the stability of the license plate during hot-stamping. However, the support plate and the conveyor belt are in surface contact support. During the hot-stamping process, the support rigidity of the support plate and the fit of the conveyor belt are difficult to fully match the hot-stamping pressure requirements, which can easily lead to slight deformation of the conveyor belt or slight displacement between the support plate and the conveyor belt, resulting in less than ideal stability of the hot-stamping pressure. Utility Model Content

[0004] The purpose of this invention is to provide a drawer-type split belt conveyor mechanism for a license plate hot stamping machine. This invention reduces conveyor belt replacement costs through its split belt conveyor structure and effectively improves the stability of the hot stamping pressure, ensuring the quality of the license plate hot stamping.

[0005] The technical solution of this utility model: A drawer-type split belt conveyor mechanism for a license plate hot stamping machine includes a worktable. The worktable is provided with a feeding rack, a hot stamping rack, and an output rack in sequence according to the license plate conveying direction. The feeding rack is provided with a drawer-type feeding conveyor belt unit, the hot stamping rack is provided with an auxiliary transmission roller that works in conjunction with the hot stamping roller, and the output rack is provided with an output conveyor belt.

[0006] In the drawer-type split belt conveyor mechanism of the above-mentioned license plate hot stamping machine, the feeding conveyor belt unit includes a pair of horizontal plates arranged in the feeding frame, an I-beam frame on the horizontal plates, symmetrically arranged side plates on the I-beam frame, and a feeding conveyor belt on the side plates.

[0007] In the aforementioned drawer-type belt conveyor mechanism of the license plate hot stamping machine, the inner horizontal plate is provided with symmetrical rib seats, and the outer side of the side plate is provided with a support shaft passing through the rib seats.

[0008] In the aforementioned drawer-type split belt conveyor mechanism of the license plate hot stamping machine, the feed port of the side plate is provided with a shaft mounting plate. The shaft mounting plate has an L-shaped slot for mounting the shaft of the feed conveyor belt. The shaft of the feed conveyor belt is connected to the shaft mounting plate by screws.

[0009] In the aforementioned drawer-type belt conveyor mechanism of the license plate hot stamping machine, the hot stamping frame includes an inner frame set on the worktable, and the outer side of the inner frame is covered with a U-shaped cover. One end of the U-shaped cover has a groove for accommodating the discharge end of the discharge conveyor belt; the upper end of the U-shaped cover has a through groove for setting the roller surface of the auxiliary transmission roller.

[0010] In the aforementioned drawer-type belt conveyor mechanism of the license plate hot stamping machine, there are reinforcing shafts inside the U-shaped cover and located at the bottom of both ends of the U-shaped cover.

[0011] In the aforementioned drawer-type belt conveyor mechanism of the license plate hot stamping machine, the side of the U-shaped cover has a longitudinal adjustment groove for the longitudinal height position of the auxiliary transmission roller, and the two sides of the longitudinal adjustment groove have bearing mounting holes for adjusting the bearing seat position of the auxiliary transmission roller.

[0012] In the aforementioned drawer-type split belt conveyor mechanism of the license plate hot stamping machine, the discharge conveyor belt includes a motor bracket located on the rear side of the discharge frame, a discharge motor is mounted on the motor bracket, and a drive wheel set and a driven wheel set are respectively located at both ends of the discharge frame. A belt body is wound around the drive wheel set and the driven wheel set, and the transmission surface of the belt body is higher than the upper surface of the discharge frame; the output end of the discharge motor is connected to the drive wheel set via belt drive.

[0013] In the aforementioned drawer-type split belt conveyor mechanism of the license plate hot stamping machine, the conveying surfaces of the feeding conveyor belt unit, the auxiliary transmission roller, and the discharging conveyor belt are higher than the upper surfaces of each frame, and the conveying surfaces of the three are all on the same plane.

[0014] Compared with the prior art, the present invention has the following advantages: 1. This utility model is generally divided into three sections. The inlet and outlet of the license plate adopt a conveyor belt structure, and the middle hot stamping area adopts a roller conveyor structure. When there is a problem with the conveyor structure of different sections, only the corresponding section components need to be replaced, without the need for overall replacement, which reduces the cost of consumables. Replacing the corresponding section components can shorten the replacement time of the conveyor belt and effectively reduce the downtime caused by replacing the conveyor belt. When the license plate is in the hot stamping area, the bottom contacts the hot stamping frame. The hot stamping frame is a rigid structure, which ensures that the rigidity of the support structure is sufficient to resist the downward rolling pressure of the hot stamping components. This ensures that the hot stamping film can be accurately and firmly transferred to the surface of the license plate under the rolling action, thereby ensuring the clarity and adhesion of the hot stamping pattern on the license plate.

[0015] 2. By setting rib seats, the support strength of the I-beam frame can be improved, further ensuring the stability of the feed conveyor belt at the upper end of the I-beam frame during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of an I-beam frame; Figure 3 A schematic diagram for reinforcing the shaft; Figure 4 This is a schematic diagram of the longitudinal adjustment groove; Figure 5 This is a schematic diagram of the discharge conveyor belt.

[0017] The markings in the attached diagram are as follows: 1-Workbench, 2-Feed rack, 3-Hot stamping rack, 4-Discharge rack, 5-Feed conveyor belt unit, 6-Auxiliary drive roller, 7-Discharge conveyor belt, 8-Transverse plate, 9-I-beam frame, 10-Side plate, 11-Rib seat, 12-Support shaft, 13-Shaft mounting plate, 14-L-shaped slot, 15-Interior frame, 16-U-shaped cover, 17-Groove, 18-Through groove, 19-Reinforced shaft, 20-Longitudinal adjustment groove, 21-Bearing mounting hole, 22-Motor bracket, 23-Discharge motor, 24-Drive wheel assembly, 25-Driven wheel assembly, 26-Belt body, 27-Feed conveyor belt. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example: A drawer-type split belt conveyor mechanism for a license plate hot stamping machine, including a worktable 1, as shown in the attached diagram. Figure 1As shown, the workbench 1 is equipped with a feeding rack 2, a hot stamping rack 3, and an output rack 4 in sequence according to the license plate transmission direction. The bottom of the three racks has bent edges with fixing holes. Fixing bolts are installed in the fixing holes to stably connect with the workbench. The feeding rack 2, hot stamping rack 3, and output rack 4 are sequentially fitted together. The feeding rack 2 is equipped with a drawer-type feeding conveyor belt unit 5. The hot stamping rack 3 is equipped with an auxiliary transmission roller 6 that works in conjunction with the hot stamping roller. The hot stamping rack 3 includes an inner frame 15 set in the workbench 1. The outer side of the inner frame 15 is covered with a U-shaped cover 16. Since the hot stamping mechanism above the hot stamping rack needs to press down, the hot stamping rack needs to have sufficient strength. The inner frame can improve the structural strength of the U-shaped cover. One end of the U-shaped cover 16 has a groove 17 to accommodate the output end of the output conveyor belt 7. The upper end of the U-shaped cover 16 has a through groove 18 for setting the roller surface of the auxiliary transmission roller 6. The U-shaped cover 16 has reinforcing shafts 19 located inside and at the bottom of both ends of the U-shaped cover 16, as shown in the attached figure. Figure 3 As shown, the structural strength of the bottom of the U-shaped cover can be improved by reinforcing the shaft. The side of the U-shaped cover 16 has a longitudinal adjustment groove 20 for the longitudinal height position of the auxiliary transmission roller 6, as shown in the attached figure. Figure 4 As shown, the longitudinal adjustment groove 20 has bearing mounting holes 21 on both sides for adjusting the position of the bearing seat of the auxiliary drive roller 6. The longitudinal adjustment groove adopts a long strip groove design, providing the bearing seat of the auxiliary drive roller with adjustment space for sliding along the longitudinal (height direction). When processing license plates of different thicknesses, changing the hot stamping film type, or adjusting the hot stamping pressure, the operator can move the bearing seat along the adjustment groove to precisely adjust the rolling gap between the auxiliary drive roller and the gluing roller (hot stamping roller). When adjusting the height position of the auxiliary drive roller, the bearing seat needs to be moved to a different position. After determining the position of the bearing seat, the bolts in the bearing mounting holes are tightened. To further ensure that the bolts in the bearing mounting holes do not shift, a movable and adjustable fixing block is provided on the inside of the U-shaped cover. The screws of the bolts pass through the holes of the fixing block. The discharge frame 4 is equipped with a discharge conveyor belt 7. The transmission surfaces of the feeding conveyor belt unit 5, the auxiliary drive roller 6, and the discharge conveyor belt 7 are higher than the upper surfaces of each frame, and the transmission surfaces of the three are all on the same plane.

[0020] The feeding conveyor unit 5 includes a pair of transverse plates 8 disposed within the feeding rack 2, and I-beams 9 are provided on the transverse plates 8, as shown in the attached figure. Figure 2As shown, symmetrically arranged side plates 10 are installed on the I-beam frame 9. A feeding conveyor belt 27 is mounted on the side plate 10. Symmetrical rib seats 11 are installed on the inner transverse plate 8. A support shaft 12, passing through the rib seats 11, is installed on the outer side of the side plate 10. When the feeding conveyor belt is running, the belt's own tension, the weight of the license plate, and running vibrations will generate multi-directional loads. The I-beam frame can evenly transfer these loads to the lower transverse plate, avoiding localized stress concentration that could lead to deformation of the support structure and ensuring that the feeding conveyor belt always maintains a stable installation posture. When the feeding conveyor belt is running, it will generate outward lateral tension on the side plate. If only the I-beam frame is connected to the bottom of the side plate, the side plate is prone to tilting outward or shifting left or right, causing the conveyor belt to loosen and deviate. The support shaft, through the connection between the outer side of the side plate and the rib seats, effectively provides a transverse positioning pin for the side plate, limiting the side plate's displacement in the transverse direction (perpendicular to the transmission direction) and ensuring that the side plate is always parallel to the transmission direction, avoiding conveyor belt problems caused by side plate misalignment.

[0021] The side plate 10 is equipped with a shaft mounting plate 13 at the feed port. The shaft mounting plate 13 has an L-shaped slot 14 for mounting the shaft of the feed conveyor belt 27. The shaft of the feed conveyor belt 27 is connected to the shaft mounting plate 13 by screws. The pre-positioning function of the L-shaped slot can be operated by a single person. The operator only needs to push the shaft into the slot to complete the initial fixation, and then lock it with screws. No additional calibration steps are required.

[0022] The discharge conveyor belt 7 includes a motor bracket 22 located on the rear side of the discharge rack 4, as shown in the attached figure. Figure 5 As shown, a discharge motor 23 is mounted on the motor bracket 22. A drive pulley set 24 and a driven pulley set 25 are respectively mounted at both ends of the discharge frame 4. A belt 26 is wound around the drive pulley set 24 and the driven pulley set 25, with the transmission surface of the belt 26 higher than the upper surface of the discharge frame 4. The output end of the discharge motor 23 is connected to the drive pulley set 24 via belt drive. When the discharge motor starts, the drive pulley set rotates via belt drive, and the driven pulley set rotates via the belt. The belt is used to transport license plates. In existing wide-body belt conveyor mechanisms, the inductive sensor is hidden below the conveyor belt. This invention, by adopting a split-type transmission structure, allows the inductive sensor to be directly exposed between two split belts, greatly improving the response speed and accuracy of the inductive sensor.

[0023] The working principle of this utility model is as follows: The license plate to be hot-stamped is placed at the starting end of the feeding conveyor belt unit 5 by manual operation or a front-loading mechanism. Driven by the drive assembly (which has the same drive logic as the discharge conveyor belt and can rotate the shaft via a built-in motor), the feeding conveyor belt unit transports the license plate along the transmission direction. When the license plate enters the hot-stamping frame 3, the transmission responsibility is transferred from the feeding conveyor belt unit 5 to the auxiliary transmission roller 6. At this time, the hot-stamping assembly and the conveying mechanism work together to complete the hot-stamping process. The U-shaped cover 16 of the hot-stamping frame 3 and the built-in frame 1... 5 forms a rigid support system. The reinforced shaft 19 at the bottom further enhances the deformation resistance of the U-shaped cover, so that the bottom of the license plate fits tightly against the support surface at the top of the U-shaped cover, avoiding local deformation of the license plate caused by pressure during hot stamping. After the license plate is hot stamped, it is removed from the hot stamping rack 3 and enters the coverage area of ​​the discharge conveyor belt 7. After the discharge motor 23 is started, it drives the drive wheel set 24 in the discharge rack 4 to rotate through the belt drive. The drive wheel set drives the driven wheel set 25 to rotate synchronously through the belt body 26, forming a cyclic transmission power.

Claims

1. A drawer-type split belt conveyor mechanism for a license plate hot stamping machine, comprising a worktable (1), characterized in that: The workbench (1) is provided with a feeding rack (2), a hot stamping rack (3) and an output rack (4) in sequence according to the direction of license plate transmission; the feeding rack (2) is provided with a drawer-type feeding conveyor belt unit (5), the hot stamping rack (3) is provided with an auxiliary transmission roller (6) that works in conjunction with the hot stamping roller, and the output rack (4) is provided with an output conveyor belt (7).

2. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 1, characterized in that: The feeding conveyor belt unit (5) includes a pair of transverse plates (8) arranged in the feeding rack (2), an I-beam frame (9) is provided on the transverse plates (8), and symmetrically arranged side plates (10) are provided on the I-beam frame (9), and a feeding conveyor belt (27) is provided on the side plates (10).

3. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 2, characterized in that: The inner transverse plate (8) is provided with symmetrical rib seats (11), and the outer side of the side plate (10) is provided with a support shaft (12) passing through the rib seats (11).

4. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 2, characterized in that: The side plate (10) has a shaft mounting plate (13) at the feed port. The shaft mounting plate (13) has an L-shaped slot (14) for mounting the shaft of the feed conveyor belt (27). The shaft of the feed conveyor belt (27) is connected to the shaft mounting plate (13) by screws.

5. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 1, characterized in that: The hot stamping frame (3) includes an inner frame (15) set on the workbench (1), and a U-shaped cover (16) is wrapped around the outer side of the inner frame (15). One end of the U-shaped cover (16) has a groove (17) for accommodating the discharge end of the discharge conveyor belt (7); the upper end of the U-shaped cover (16) has a through groove (18) for setting the roller surface of the auxiliary drive roller (6).

6. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 5, characterized in that: The U-shaped cover (16) has a reinforcing shaft (19) located at the bottom of both ends of the U-shaped cover (16).

7. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 6, characterized in that: The side of the U-shaped cover (16) has a longitudinal adjustment groove (20) for the longitudinal height position of the auxiliary transmission roller (6), and the two sides of the longitudinal adjustment groove (20) have bearing mounting holes (21) for adjusting the bearing seat position of the auxiliary transmission roller (6).

8. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 1, characterized in that: The discharge conveyor belt (7) includes a motor bracket (22) located on the rear side of the discharge rack (4), a discharge motor (23) is provided on the motor bracket (22), and a drive wheel set (24) and a driven wheel set (25) are respectively provided at both ends of the discharge rack (4). A belt body (26) is wound around the drive wheel set (24) and the driven wheel set (25), and the transmission surface of the belt body (26) is higher than the upper surface of the discharge rack (4). The output end of the discharge motor (23) is connected to the drive wheel set (24) via belt drive.

9. The drawer-type split belt conveyor mechanism of the license plate hot stamping machine according to claim 1, characterized in that: The conveying surfaces of the feeding conveyor belt unit (5), the auxiliary drive roller (6), and the discharging conveyor belt (7) are higher than the upper surface of each frame, and the conveying surfaces of the three are all on the same plane.

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