Bottle cap coding device

Abstract

The utility model provides a kind of bottle cap coding device, it is related to bottle cap code spraying technology, specifically discloses rack, one side of rack is equipped with laser equipment, transmission mechanism is installed on the workbench of rack, the working end of laser equipment is oppositely arranged with the workbench of rack, the positioner for controlling the reciprocating motion of the working end of laser equipment is equipped on rack, the positioner for positioning the relative position of bottle cap and the working end of laser equipment is equipped on rack, through the multi-shaft linkage of first positioner and second positioner, the accurate movement of laser head in plane is realized, error-free engraving of complex pattern is supported, the hard mechanical limit design formed by positioning cylinder and positioning column, spherical end positioning column set in combination with spring sliding, eliminate the rebound error of flexible mechanism, ensure the quick calibration of guide mechanism and laser head.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap coding technology, and more specifically, to a bottle cap coding device. Background Technology

[0002] Currently, most bottle caps of reputable manufacturers' alcoholic beverages and canned goods are marked with information such as production date, shelf life, and traceability code. Consumers can scan the QR code on the cap with their mobile phones to obtain information about the bottled product and determine its quality and safety. In actual production, some bottle caps require at least two coding markings. Existing double-sided coding equipment uses a technique of coding different areas separately: bottle cap coding—bottle cap flipping—bottle cap coding again. The drawbacks of the above coding device are: during the coding process, because the bottle cap is not stably limited, it is prone to displacement during transmission due to mechanical vibration or unstable clamping (lateral deviation ±1.5mm). This is especially true for curved or irregularly shaped bottle caps (such as screw caps and polygonal caps), where traditional clamping mechanisms struggle to achieve stable limiting, leading to misalignment of the coding position (such as the QR code not aligning with the text), easily resulting in coding position deviation and compromising product quality.

[0003] Based on the above problems, the inventors proposed a bottle cap positioning device for laser marking on bottle caps. Utility Model Content

[0004] The purpose of this utility model is to provide a bottle cap coding device that addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a bottle cap coding device, including a frame, a laser device installed on one side of the frame, a transmission mechanism installed on the worktable of the frame, the working end of the laser device being arranged opposite to the worktable of the frame, an adjustment mechanism for controlling the reciprocating motion of the working end of the laser device on the frame, and a positioning mechanism for positioning the bottle cap and the working end of the laser device relative to each other on the frame.

[0007] In some technical solutions of this utility model, the adjustment mechanism includes a stabilizing frame, a mounting frame is fixedly provided on the top of the stabilizing frame, a first adjustment structure is provided on the side wall of the mounting frame along the transmission direction of the transmission mechanism, a connecting frame is installed on the moving end of the first adjustment structure, a second adjustment structure is installed on the side wall of the connecting frame, and the working end of the laser device is installed on the moving end of the second adjustment structure.

[0008] In some technical solutions of this utility model, a guide mechanism is installed on the worktable of the frame to guide the bottle cap to move along the transmission direction of the transmission mechanism.

[0009] In some technical solutions of this utility model, the guiding mechanism includes two guide frames arranged in pairs. The guide frames are both installed on the worktable of the machine frame. Several guide plates are installed on the opposite side walls of the two guide frames. Two adjusting springs are provided on the opposite side walls of the guide plates and guide frames. The machine frame is provided with a driving mechanism to drive the two guide frames to reciprocate.

[0010] In some technical solutions of this utility model, arc-shaped limiting grooves are provided on the opposite side walls of the two guide plates.

[0011] In some technical solutions of this utility model, a positioning cylinder is installed at the working end of the laser device, and a positioning hole is opened on the end face of the positioning cylinder. Positioning pins that are adapted to the positioning holes are installed on the top walls of the two guide plates, and the positioning pins are partially embedded in the positioning holes.

[0012] In some technical solutions of this utility model, a storage slot is installed on the frame, and a part of the transmission mechanism is placed in the storage slot.

[0013] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: through the multi-axis linkage of the first and second adjustment structures, the laser head can move precisely in the plane, supporting error-free engraving of complex patterns; the rigid mechanical limit design formed by the positioning cylinder and the positioning post, combined with the spherical end positioning post with spring sliding, eliminates the rebound error of the flexible mechanism, ensuring rapid calibration of the guiding mechanism and the laser head; the bidirectional electric push rod drives the two guide frames to move synchronously, and with the adjustment spring, adaptive clamping is achieved, and no machine stop is required when switching specifications; and the limiting groove designed based on the curvature of the bottle cap disperses the pressure of the bottle cap through the arc surface contact, reducing the lateral displacement of the bottle cap and reducing the scratch rate of the bottle cap. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a top view of the structure of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the adjustment mechanism in this utility model.

[0017] Figure 4 This is a schematic diagram of the installation structure of the positioning cylinder in this utility model.

[0018] Figure 5 This is a schematic diagram of the guide plate in this utility model.

[0019] Figure label:

[0020] 1. Transmission mechanism; 2. Frame; 3. Storage slot; 4. Laser equipment; 5. Guide frame; 6. Positioning cylinder; 7. Stabilizer; 8. Mounting frame; 9. First adjustment structure; 10. Second adjustment structure; 11. Connecting frame; 12. Electric push rod; 13. Adjustment spring; 14. Guide plate; 15. Positioning column. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0023] Example

[0024] This utility model provides a bottle cap coding device, such as Figures 1-5As shown, the system includes a frame 2, which is constructed from aluminum profiles. A laser device 4 is mounted on one side of the frame 2. The laser device 4 is a conventional technique commonly used for bottle cap coding. A transmission mechanism 1 is installed on the worktable of the frame 2 along its extension direction. The transmission mechanism 1 continuously transports bottle caps via mechanical transmission (such as a belt and pulley), ensuring the continuity of bottle cap coding. The working end of the laser device 4 is positioned opposite the worktable of the frame 2. The frame 2 is equipped with an adjustment mechanism to control the reciprocating motion of the working end of the laser device 4. This adjustment mechanism drives the laser head to move in three-dimensional space (X / Y / Z axes) via a motor or cylinder, ensuring the laser beam is aligned with different areas of the bottle cap. The frame 2 also has a positioning mechanism for positioning the bottle cap relative to the working end of the laser device 4. This positioning mechanism uses a mechanical limit device to provide real-time feedback on the bottle cap position and dynamically adjust the laser head coordinates. The working principle of this structure is as follows: Bottle caps are conveyed to the worktable of the frame 2 via the transmission mechanism 1. The laser device 4, driven by the adjustment mechanism, adjusts the position of its working end (laser head) to align with the bottle cap surface. The positioning mechanism monitors the bottle cap's position in real time to ensure precise matching between the laser head and the bottle cap. When the bottle cap reaches the preset position, the laser device 4 starts and marks the bottle cap surface. The bottle cap is then conveyed to the next process. The adjustment and positioning mechanisms within the structure work together to ensure the marking position, achieving synchronization between bottle cap transport and laser marking, improving production efficiency, and enabling continuous automatic operation of bottle caps. The adjustment mechanism can adapt to bottle caps of different sizes and curvatures, increasing the adaptability of this structure.

[0025] In some technical solutions of this utility model, the adjustment mechanism includes a stabilizing frame 7, which is fixed to one side of the frame 2 by bolts. The laser device 4 is mounted on the top of the mounting frame 8. The top of the stabilizing frame 7 is fixed with the mounting frame 8 by bolts. The stabilizing frame 7 and the mounting frame 8 are made of rigid materials (such as aluminum alloy) to reduce vibration interference. A first adjustment structure 9 is provided on the side wall of the mounting frame 8 along the transmission direction of the transmission mechanism 1. The first adjustment structure 9 adopts an electric screw structure driven by a ball screw or synchronous belt. A connecting frame 11 is installed on the moving end of the first adjustment structure 9. A second adjustment structure 10 is installed on the side wall of the connecting frame 11. The second adjustment structure 10 is a screw structure driven by a pneumatic or servo motor, which can realize rapid fine adjustment of the working end of the laser device 4. The working head of the laser device 4 is mounted on the moving end of the second adjustment structure 10. The first adjustment structure 9 (such as a linear module) moves the connecting frame 11 along the transmission direction (X-axis), and the second adjustment structure 10 (such as a linear module) drives the laser head to move perpendicular to the transmission direction (Y-axis). Through the linkage of the two axes, the laser head can cover any area of ​​the bottle cap surface, realizing multi-degree-of-freedom adjustment: supporting the precise engraving of complex patterns (such as circular text, QR codes).

[0026] In some technical solutions of this utility model, a guide mechanism is installed on the worktable of the frame 2 to guide the bottle cap to move along the transmission direction of the transmission mechanism 1.

[0027] In some technical solutions of this utility model, the guiding mechanism includes two guide frames 5 arranged in pairs. The guide frames 5 are both installed on the worktable of the frame 2. Several guide plates 14 are installed on the opposite side walls of the two guide frames 5. Two adjusting springs 13 are provided on the side walls of the guide plates 14 opposite to the guide frames 5. The frame 2 is provided with a driving mechanism to drive the two guide frames 5 to reciprocate.

[0028] The guiding mechanism constrains the movement trajectory of the bottle cap during transport through a physical guiding structure, preventing deviation or tilting. Two guide plates 14 confine the bottle cap within the central area of ​​the transport mechanism 1. The guide plates 14 are made of low-friction materials (such as Teflon coating) to reduce resistance when the bottle cap contacts them. An adjusting spring 13 automatically adjusts the guide width according to the bottle cap size, ensuring the bottle cap remains within the laser focal range and accommodating bottle caps of different sizes. The drive mechanism (two electric push rods 12) synchronously drives the two guide frames 5 to move in opposite directions or back to back, actively clamping the bottle cap to be laser-printed. The adjusting spring 13 then provides cushioning and maintains constant pressure from the guide plates 14 on the bottle cap. The arc-shaped design of the limiting groove conforms to the edge of the bottle cap, achieving self-centering.

[0029] In some technical solutions of this utility model, arc-shaped limiting grooves are provided on the opposite sidewalls of the two guide plates 14. After the bottle cap enters the limiting groove, the arc-shaped groove surface forms a surface contact with the outer edge of the bottle cap, dispersing pressure and guiding it to slide along a predetermined path. The arc-shaped surface of the limiting groove is designed based on common bottle cap sizes, which improves the adaptability between the two, reduces wear between the bottle cap and the limiting groove, and prevents scratches on the bottle cap surface.

[0030] In some technical solutions of this utility model, a positioning cylinder 6 is installed at the working end of the laser device 4. The working end of the laser device 4 can move within the annular area enclosed by the positioning cylinder 6 under the adjustment of the adjustment mechanism. A positioning post 15 is provided on the end face of the positioning cylinder 6. Positioning holes adapted to the positioning post 15 are opened on the top walls of the two guide plates 14. There are multiple positioning holes, and the positioning holes are arranged radially along the positioning cylinder 6. The arrangement direction of the positioning holes is perpendicular to the transmission direction of the transmission mechanism 1. The positioning post 15 is partially embedded in any one of the positioning holes. When the guide mechanism is adjusted to the correct position, the positioning post 15 is inserted into the positioning hole of the positioning cylinder 6, forming a rigid mechanical limit. Through the clearance fit between the positioning hole and the positioning post 15, the position rebound error of the flexible mechanism is eliminated. When changing the bottle cap size, the positioning post 15 / hole fit can achieve one-click reset, improving the positioning accuracy.

[0031] Preferably, the positioning cylinder 6 is connected to the stabilizer 7 via a rod.

[0032] Preferably, the positioning post 15 is slidably disposed at the end of the positioning cylinder 6 by means of a spring, and the end of the positioning post 15 is spherical.

[0033] In some technical solutions of this utility model, a storage slot 3 is installed on the frame 2, and a portion of the transmission mechanism 1 is placed inside the storage slot 3. The end of the transmission mechanism 1 extends into the storage slot 3, and the coded bottle caps fall into the storage slot 3 through the transmission of the transmission mechanism 1 and their own gravity or airflow. The storage slot 3 is detachable, which facilitates centralized processing of the printed bottle caps.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottle cap coding device, characterized in that, The device includes a frame (2), on one side of which a laser device (4) is mounted. A transmission mechanism (1) is mounted on the worktable of the frame (2). The working end of the laser device (4) is positioned opposite to the worktable of the frame (2). The frame (2) is provided with an adjustment mechanism for controlling the reciprocating motion of the working end of the laser device (4). The frame (2) is also provided with a positioning mechanism for positioning the bottle cap relative to the working end of the laser device (4).

2. The bottle cap coding device according to claim 1, characterized in that, The adjustment mechanism includes a stabilizing frame (7), and a mounting frame (8) is fixedly provided on the top of the stabilizing frame (7). A first adjustment structure (9) is provided on the side wall of the mounting frame (8) along the transmission direction of the transmission mechanism (1). A connecting frame (11) is installed on the moving end of the first adjustment structure (9). A second adjustment structure (10) is installed on the side wall of the connecting frame (11). The working end of the laser device (4) is installed on the moving end of the second adjustment structure (10).

3. A bottle cap coding device according to claim 1 or 2, characterized in that, The worktable of the frame (2) is equipped with a guide mechanism for guiding the bottle cap to move along the transmission direction of the transmission mechanism (1).

4. The bottle cap coding device according to claim 3, characterized in that, The guiding mechanism includes two guide frames (5) arranged in pairs. The guide frames (5) are both installed on the worktable of the frame (2). Several guide plates (14) are installed on the opposite side walls of the two guide frames (5). Two adjusting springs (13) are provided on the side walls of the guide plates (14) opposite to the guide frames (5). The frame (2) is provided with a driving mechanism to drive the two guide frames (5) to reciprocate.

5. A bottle cap coding device according to claim 4, characterized in that, Both guide plates (14) have arc-shaped limiting grooves on their opposite sidewalls.

6. A bottle cap coding device according to claim 4, characterized in that, A positioning cylinder (6) is installed at the working end of the laser device (4). A positioning post (15) is provided on the end face of the positioning cylinder (6). Positioning holes adapted to the positioning post (15) are installed on the top walls of the two guide plates (14). The positioning post (15) is partially embedded in the positioning hole.

7. The bottle cap coding device according to claim 1, characterized in that, A storage slot (3) is installed on the frame (2), and a portion of the transmission mechanism (1) is placed in the storage slot (3).

Images