Self-gravity adhesive type self-cleaning device of license plate stamping machine

CN224602505UActive Publication Date: 2026-08-07WANGMEI TECHNOLOGY (HANGZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WANGMEI TECHNOLOGY (HANGZHOU) CO LTD
Filing Date
2025-10-13
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]然而,上述现有清洁装置在实际使用过程中存在一定缺陷:车牌在送牌机构驱动下向前输送并与擦字辊组接触时,擦字辊组表面虽能初步擦除车牌表面的灰尘或污渍,但随着清洁作业的持续进行,被擦除的脏物会逐渐粘附在擦字辊组表面,且难以自行脱落

Benefits of technology

1、本实用新型通过轴体卡口架设的粘胶辊,依托自身重力始终紧贴车牌清洁辊,当车牌清洁辊随传输机构运转擦除车牌表面灰尘或其他脏物,粘胶辊的粘性面能实时粘除清洁辊表面附着的脏物,避免脏物堆积导致的清洁效果下降问题,同时杜绝脏物二次转移至车牌表面的风险,确保车牌均能获得稳定、洁净的清洁效果;本实用新型的自洁过程与车牌传输、清洁作业同步进行,无需中断生产流程,避免因停机导致的生产断档,省去人工拆解、清理、重装辊组的工序,减少人工维护成本,确保整体的生产流程。

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Abstract

The utility model discloses a self-gravity sticky type self-cleaning device of license plate hot stamping machine, including setting in the lateral vertical board (1) of license plate transmission mechanism both sides, be equipped with the license plate cleaning roller (2) of transmission face setting of license plate transmission mechanism close -fitted between the lateral vertical board (1), the upper end of lateral vertical board (1) is equipped with the shaft body bayonet (3), and the shaft body bayonet (3) between both sides lateral vertical board (1) is erected with sticky roller (4), the tackiness of sticky roller (4) always is close -fitted with license plate cleaning roller (2), and sticky roller (4) is used for carrying out cleaning to license plate cleaning roller (2). The utility model discloses through the pasting structure of self -weight to license plate cleaning roller real -time cleaning, make license plate cleaning roller be in clean state, avoid the license plate hot stamping process of shutdown processing interruption, guarantee the production efficiency of whole.
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Description

Technical Field

[0001] This utility model relates to the field of license plate hot stamping equipment, and in particular to a gravity-adhesive self-cleaning device for a license plate hot stamping machine. Background Technology

[0002] During the production and transportation of semi-finished license plates, dust or residual oil easily accumulates on their surface, requiring cleaning equipment to clean the plates. Currently, hot stamping machines on the market use dust removal plate devices. These devices rely on spring force to press against a felt plate, performing simple dust removal on the license plates entering the hot stamping rollers. In practical applications, installing and disassembling this plate is very troublesome, and the debris left on the dust removal plate can easily become a secondary source of pollution. Existing technology, such as Chinese invention patent publication number CN112916460A, discloses a license plate erasing device, including a frame, a water tank, a flipping mechanism, a plate feeding mechanism, and an erasing roller assembly. The flipping mechanism is located on the left side of the frame, the water tank is located on the right side, the erasing roller assembly is mounted on the frame with its lower part extending into the water tank, and the plate feeding mechanism is mounted on the frame to transport the flipped license plate into the erasing roller assembly.

[0003] However, the existing cleaning devices have certain drawbacks in actual use: when the license plate is conveyed forward by the plate feeding mechanism and comes into contact with the wiping roller assembly, although the surface of the wiping roller assembly can initially remove dust or stains from the license plate surface, as the cleaning operation continues, the removed dirt gradually adheres to the surface of the wiping roller assembly and is difficult to remove on its own. When the amount of dirt adhering to the roller assembly surface reaches a certain level, it not only leads to a significant decrease in the subsequent license plate cleaning effect, but also may cause the dirt to be transferred to the license plate surface again, resulting in secondary contamination of the license plate; at the same time, staff need to stop the machine regularly to manually clean the surface of the wiping roller assembly, which increases labor maintenance costs, interrupts the production process, and reduces overall production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a gravity-adhesive self-cleaning device for license plate hot stamping machines. This invention uses a gravity-adhesive structure to clean the license plate cleaning roller in real time, keeping the roller clean and avoiding downtime that could interrupt the hot stamping process, thus ensuring overall production efficiency.

[0005] The technical solution of this utility model: A gravity-adhesive self-cleaning device for a license plate hot stamping machine includes side plates disposed on both sides of a license plate transmission mechanism. A license plate cleaning roller is disposed between the side plates and is closely attached to the transmission surface of the license plate transmission mechanism. A shaft slot is provided at the upper end of the side plates. An adhesive roller is mounted between the shaft slots of the two side plates. The adhesive surface of the adhesive roller is always in close contact with the license plate cleaning roller, and the adhesive roller is used to clean the license plate cleaning roller.

[0006] In the aforementioned self-adhesive self-cleaning device for license plate hot stamping machine, the side upright plate is connected to the side of the license plate transmission mechanism via multiple fixing nails.

[0007] In the aforementioned self-adhesive self-cleaning device of the license plate hot stamping machine, the side upright plate is provided with an L-shaped groove, and the end of the shaft of the license plate cleaning roller is locked in the L-shaped groove.

[0008] In the aforementioned self-adhesive self-cleaning device of the license plate hot stamping machine, the adhesive roller includes a fixed shaft set in the shaft body bayonet, and a tearable adhesive roll is provided on the fixed shaft, with the adhesive roll in close contact with the license plate cleaning roller.

[0009] In the aforementioned self-adhesive self-cleaning device of the license plate hot stamping machine, the shaft bayonet is composed of a rectangular groove and a semi-circular groove, and the end of the fixed shaft has an arc surface and a flat surface. The arc surface fits into the semi-circular groove, and the flat surface fits into the inner wall of the rectangular groove.

[0010] In the aforementioned self-adhesive self-cleaning device of the license plate hot stamping machine, the groove opening of the rectangular groove has a transition arc.

[0011] Compared with the prior art, the present invention has the following advantages: 1. This utility model uses an adhesive roller mounted on a shaft clamp. Relying on its own weight, the adhesive roller remains firmly attached to the license plate cleaning roller. As the license plate cleaning roller moves with the transmission mechanism to wipe away dust or other dirt from the license plate surface, the adhesive surface of the adhesive roller can immediately remove the dirt adhering to the cleaning roller surface, avoiding the problem of reduced cleaning effect due to dirt accumulation. It also eliminates the risk of dirt being transferred to the license plate surface again, ensuring that all license plates receive a stable and clean cleaning effect. The self-cleaning process of this utility model is synchronized with the license plate transmission and cleaning operations, without interrupting the production process. This avoids production interruptions due to machine downtime, eliminates the need for manual disassembly, cleaning, and reassembly of the roller assembly, reduces labor maintenance costs, and ensures a smooth overall production process.

[0012] 2. The end of the license plate cleaning roller shaft is locked in an L-shaped groove, which allows for quick disassembly or adjustment of the fit between the cleaning roller and the transmission surface, facilitating the inspection or replacement of the cleaning roller. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of an adhesive roller; Figure 3 This is a schematic diagram of an L-shaped groove; Figure 4 This is a schematic diagram of a rubber roll.

[0014] The markings in the attached diagram are as follows: 1-side upright plate, 2-license plate cleaning roller, 3-shaft bayonet, 4-adhesive roller, 5-L-shaped groove, 6-fixed shaft, 7-glue roll, 8-rectangular groove, 9-semi-circular groove, 10-arc surface, 11-plane, 12-transition arc. Detailed Implementation

[0015] 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.

[0016] Example: A gravity-adhesive self-cleaning device for a license plate hot stamping machine includes side plates 1 disposed on both sides of the license plate transmission mechanism, as shown in the attached figure. Figure 1 As shown, the side plate 1 is connected to the side of the license plate transmission mechanism by multiple fixing nails, facilitating the assembly and disassembly of the self-cleaning device. A license plate cleaning roller 2 is installed between the side plates 1, closely attached to the transmission surface of the license plate transmission mechanism. The license plate cleaning roller mainly consists of a shaft and a sponge sleeve. The side plate 1 has an L-shaped groove 5, as shown in the attached diagram. Figure 3 As shown, the end of the license plate cleaning roller 2 is fitted into an L-shaped groove 5, and the shaft is fixed in the L-shaped groove. When the license plate is conveyed forward, the sponge sleeve contacts the license plate to wipe away dirt on the surface. The structure of the L-shaped groove allows for quick disassembly or adjustment of the fit between the cleaning roller and the conveying surface, facilitating the maintenance or replacement of the cleaning roller. The upper end of the side upright plate 1 is equipped with a shaft retainer 3, and an adhesive roller 4 is mounted between the shaft retainers 3 on both sides of the side upright plate 1. Figure 2 As shown, the adhesive roller 4 includes a fixed shaft 6 disposed within the shaft body bayonet 3, and a removable adhesive roll 7 is sleeved on the fixed shaft 6, as shown in the attached diagram. Figure 4 As shown, the glue roll 7 is in close contact with the license plate cleaning roller 2. The shaft bayonet is a longitudinal groove structure, and the fixed shaft is mounted inside the shaft bayonet. The glue roller itself has a certain weight. When a new glue roll is added to the fixed shaft, the end of the fixed shaft is located at the upper part of the shaft bayonet. When the glue roll's adhesiveness decreases, only the surface layer needs to be peeled off to restore the adhesiveness. As the diameter of the glue roll decreases, the fixed shaft will descend along the shaft bayonet, but the surface of the glue roll will always be in contact with the surface of the license plate cleaning roller. The adhesive surface of the glue roller 4 will always be in close contact with the license plate cleaning roller 2, and the glue roller 4 is used to clean the license plate cleaning roller 2.

[0017] The shaft bayonet 3 is composed of a rectangular groove 8 and a semi-circular groove 9. The end of the fixed shaft 6 has an arc surface 10 and a flat surface 11. The arc surface 10 fits into the semi-circular groove 9, and the flat surface 11 fits into the inner wall of the rectangular groove 8. Through this structure, the end of the fixed shaft can always be kept in a fixed state and will not rotate with the rotation of the outer rubber roll. The groove opening of the rectangular groove 8 has a transition arc 12. If the groove opening of the rectangular groove is designed at a right angle, the flat edge of the fixed shaft end is prone to bumping or getting stuck with the right angle of the groove opening, which will require repeated angle adjustments during installation and increase the operation time. However, the transition arc can form a guiding slope, so that the fixed shaft end can smoothly slide into the rectangular groove along the arc surface. Preliminary positioning can be completed without precise alignment. It also avoids the risk of the right angle edge scratching the operator's hand or the galvanized layer on the surface of the fixed shaft, and improves the safety and convenience of the disassembly and assembly process. Compared to existing dust removal plate devices, this utility model solves the problem of dust removal plate failure caused by insufficient elasticity of springs after long-term use by relying on the self-weight adhesive roller. Secondly, the adhesive roller is easy to install and remove. Before the license plate enters the hot stamping roller, the adhesive paper on the adhesive roller removes all the debris, oil stains, dust and other impurities on the license plate that affect the hot stamping quality. The adhesive paper can be easily replaced regularly to ensure the dust removal effect.

[0018] The working principle of this utility model is as follows: The device is rigidly connected to the side of the license plate transmission mechanism through the fixing nails of the two side upright plates 1, ensuring that the overall structure is synchronously stable with the transmission mechanism and avoiding component displacement due to transmission vibration; the shaft end of the license plate cleaning roller 2 is inserted into the L-shaped groove of the side upright plate 1. The horizontal section of the L-shaped groove 5 restricts the lateral movement of the shaft, and the vertical section can finely adjust the height of the shaft, so that the sponge sleeve of the cleaning roller is always in close contact with the transmission surface of the license plate transmission mechanism, ensuring that effective wiping contact can be formed when the license plate passes through; the fixing shaft 6 of the adhesive roller 4 is mounted in the shaft slot 3 at the upper end of the two side upright plates 1. Relying on the weight of the adhesive roller 4 itself, the outer surface of the glue roll 7 hangs down naturally and is tightly attached to the sponge sleeve of the license plate cleaning roller 2, forming an initial self-cleaning contact state.

Claims

1. A gravity-adhesive self-cleaning device for a license plate hot stamping machine, comprising lateral uprights (1) disposed on both sides of the license plate conveying mechanism, characterized in that: A license plate cleaning roller (2) is provided between the side uprights (1) and is closely attached to the transmission surface of the license plate transmission mechanism. A shaft bayonet (3) is provided at the upper end of the side uprights (1). An adhesive roller (4) is mounted between the shaft bayonet (3) of the two side uprights (1). The adhesive surface of the adhesive roller (4) is always in close contact with the license plate cleaning roller (2), and the adhesive roller (4) is used to clean the license plate cleaning roller (2).

2. The self-adhesive self-cleaning device for the license plate hot stamping machine according to claim 1, characterized in that: The side plate (1) is connected to the side of the license plate transmission mechanism by multiple fixing nails.

3. The gravity-adhesive self-cleaning device for the license plate hot stamping machine according to claim 1, characterized in that: The side upright plate (1) is provided with an L-shaped groove (5), and the end of the shaft of the license plate cleaning roller (2) is locked in the L-shaped groove (5).

4. The gravity-adhesive self-cleaning device for the license plate hot stamping machine according to claim 1, characterized in that: The adhesive roller (4) includes a fixed shaft (6) set in the shaft bayonet (3), and a removable glue roll (7) is provided on the fixed shaft (6), which is in close contact with the license plate cleaning roller (2).

5. The gravity-adhesive self-cleaning device for the license plate hot stamping machine according to claim 4, characterized in that: The shaft bayonet (3) is composed of a rectangular groove (8) and a semi-circular groove (9). The end of the fixed shaft (6) has an arc surface (10) and a plane (11). The arc surface (10) fits into the semi-circular groove (9), and the plane (11) fits into the inner wall of the rectangular groove (8).

6. The gravity-adhesive self-cleaning device for the license plate hot stamping machine according to claim 5, characterized in that: The opening of the rectangular groove (8) has a transition arc (12).

Citation Information

Patent Citations

  • License plate word erasing device

    CN112916460A