A marking device for protecting a film

Abstract

This utility model discloses a coding device for protective films, including a coding structure and a tilt adjustment structure. The coding structure includes a coding printer head and two support columns. A clamp is fixed to the back of the coding printer head. The two support columns are fixed to the base by bolts. A horizontally arranged rotating shaft is rotatably installed between the two support columns. The coding printer head is mounted on the rotating shaft through the clamp. A shock-absorbing pad is provided between the clamp and the rotating shaft and is fixed to the clamp. A tilt sensor is installed on the side of the coding printer head. A servo motor, an alarm light, and a controller are all installed on one of the support columns. The output shaft of the servo motor is connected to the end of the rotating shaft. This device can monitor the tilt angle of the coding printer head in real time by installing a tilt sensor on the side of the coding printer head. Once the coding printer head tilts due to improper installation or loose clamp, the tilt sensor will quickly transmit data to the controller, causing the controller to trigger the alarm light to promptly remind the operator.

Description

Technical Field

[0001] This utility model relates to the field of protective film production technology, specifically to a coding device for protective films. Background Technology

[0002] Coding is a crucial step in the production and processing of protective films, providing essential information for product traceability and management. Currently, inkjet printers are commonly used for coding protective films. The printer head is mounted on a support beam above the conveyor using clamps, allowing the printer to automatically code the protective film passing beneath it. However, in actual production scenarios, improper installation, such as failure to precisely adjust the printer head to a vertical position during installation, or vibrations from prolonged operation causing the clamps to loosen, can lead to printhead tilting. Once the printhead tilts, the ink trajectory deviates from the preset position, resulting in blurry or inaccurate coding, severely impacting the quality of the protective film and potentially leading to product scrap due to unqualified coding, increasing production costs. Existing coding devices lack real-time monitoring and automatic correction functions for printhead tilt, making it difficult for operators to detect when the printhead tilts.

[0003] Therefore, we have designed a coding device for protective films to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a coding device for protective films, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coding device for protective film, comprising a coding structure and a tilt adjustment structure. The coding structure includes a coding printer head and two support columns. A clamp is fixed to the back of the coding printer head. The two support columns are fixed to the base by bolts. A horizontally arranged rotating shaft is rotatably installed between the two support columns. The coding printer head is mounted on the rotating shaft by the clamp. A shock-absorbing pad is provided between the clamp and the rotating shaft and is fixed to the clamp. The tilt adjustment structure includes a tilt sensor, a servo motor, an alarm light, and a controller. The tilt sensor is installed on the side of the coding printer head. The servo motor, alarm light, and controller are all installed on one of the support columns. The output shaft of the servo motor is connected to the end of the rotating shaft. The tilt sensor, servo motor, and alarm light are all connected to the controller.

[0006] As a preferred technical solution of this utility model, the support column includes a rectangular frame, a slider, a cylinder, a baffle, and a nut. The inner side of the rectangular frame is provided with a vertical groove. The slider is slidably installed inside the rectangular frame. Vertical strip-shaped through holes are opened on both sides of the rectangular frame. A round through hole is opened on the side of the slider corresponding to the position of the strip-shaped through hole. The cylinder passes through the rectangular frame and the slider simultaneously through the strip-shaped through hole and the round through hole. A baffle is fixed at one end of the cylinder. An external thread is provided at the other end of the cylinder. The nut is connected to the threaded end of the cylinder by the thread.

[0007] As a preferred embodiment of this utility model, a conveyor is installed on the base, the conveyor is located between two support columns, and the nozzle of the inkjet printer is vertically downward and located directly above the conveyor belt of the conveyor.

[0008] As a preferred technical solution of this utility model, the outer side of the rotating shaft is engraved with horizontal and transverse scales.

[0009] As a preferred embodiment of this utility model, the rotating shaft is rotatably mounted between the sliders of the two support columns via a bearing, and the servo motor is fixed on the slider of one of the support columns.

[0010] As a preferred embodiment of this utility model, both the alarm light and the controller are fixed to the top of the rectangular frame of one of the support columns.

[0011] As a preferred embodiment of this utility model, the rectangular frame has vertical scales engraved on its side.

[0012] Compared with the prior art, the present invention provides a coding device for protective films, which has the following advantages:

[0013] 1. This coding device for protective film uses an angle sensor installed on the side of the inkjet printer head to monitor the tilt angle of the inkjet printer head in real time. Once the inkjet printer head tilts due to improper installation or loose clamps, the angle sensor will quickly transmit the data to the controller, which will trigger the alarm light to promptly remind the operator. At the same time, the servo motor drives the rotating shaft to rotate based on the feedback from the angle sensor, which in turn drives the inkjet printer head to rotate through the clamps, achieving automatic correction and keeping it in a vertical state.

[0014] 2. This coding device for protective film, by setting a shock-absorbing pad between the clamp and the rotating shaft, can reduce the vibration of the inkjet printer nozzle and the clamp as a whole, thereby reducing the impact of equipment vibration on coding accuracy and the clamp. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the position of the shock-absorbing pad of this utility model;

[0017] Figure 3 This is a schematic diagram of the support column structure of this utility model.

[0018] Reference numerals: 1. Inkjet printer nozzle; 2. Support column; 21. Rectangular frame; 22. Slider; 23. Cylinder; 24. Baffle; 25. Nut; 3. Clamp; 4. Rotating shaft; 5. Shock-absorbing pad; 6. Tilt sensor; 7. Servo motor; 8. Base; 9. Conveyor; 10. Warning light; 11. Controller. Detailed Implementation

[0019] 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.

[0020] Example 1: Please refer to Figures 1-3 This embodiment provides a coding device for protective films, which includes a coding structure and a tilt adjustment structure. In the coding structure, a coding head 1 is connected to an external coding machine. A clamp 3 is fixed to the back of the coding head 1 by screws. Two support columns 2 are fixed to a base 8 by bolts. A horizontally arranged rotating shaft 4 is rotatably installed between the two support columns 2. The coding head 1 is mounted on the rotating shaft 4 via the clamp 3. A shock-absorbing pad 5 is provided between the clamp 3 and the rotating shaft 4 and is fixed to the clamp 3. The shock-absorbing pad 5 is made of rubber. The function of the shock-absorbing pad 5 is to reduce the impact of equipment vibration on coding accuracy. The tilt adjustment structure includes a tilt sensor 6, a servo motor 7, an alarm light 10, and a controller 11. The tilt sensor 6 is installed on the side of the inkjet printer nozzle 1 to monitor the tilt angle of the inkjet printer nozzle 1. The servo motor 7, the alarm light 10, and the controller 11 are all installed on one of the support columns 2. The output shaft of the servo motor 7 is connected to the end of the rotating shaft 4 to drive the rotating shaft 4 to rotate. The servo motor 7 is a digital servo motor. Digital servos are not only highly accurate, fast in response, and have strong anti-interference capabilities, but they also have a self-locking function, which can maintain the position even after the control signal is lost. The tilt sensor 6, the servo motor 7, and the alarm light 10 are all connected to the controller 11.

[0021] During actual operation, the tilt sensor 6 monitors the tilt angle of the inkjet printer nozzle 1 in real time and transmits the data to the controller 11. When the inkjet printer nozzle 1 is in a vertical state, the angle data detected by the tilt sensor 6 is within the normal range, and the controller 11 does not issue any commands. The servo motor 7 and the alarm light 10 are both in standby mode. If the inkjet printer nozzle 1 tilts due to improper installation angle fixing or loose clamp 3, the angle data detected by the tilt sensor 6 will exceed the normal range. After receiving the abnormal data, the controller 11 will immediately trigger the alarm light 10 to issue an audible and visual alarm, reminding the operator that the inkjet printer nozzle 1 has tilted. At the same time, the controller 11 controls the servo motor 7 to start according to the tilt angle data fed back by the tilt sensor 6. The output shaft of the servo motor 7 drives the rotating shaft 4 to rotate, which in turn drives the inkjet printer nozzle 1 to rotate through the clamp 3, correcting the inkjet printer nozzle 1 and making it return to a vertical state.

[0022] Example 2: Based on Example 1, this example further describes the structure of the support column 2. The support column 2 includes a rectangular frame 21, a slider 22, a cylinder 23, a baffle 24, and a nut 25. The inner side of the rectangular frame 21 has a vertical groove. The slider 22 is slidably installed inside the rectangular frame 21. Vertical strip-shaped through holes are opened on both sides of the rectangular frame 21. A circular through hole is opened on the side of the slider 22 corresponding to the position of the strip-shaped through hole. The cylinder 23 passes through both the strip-shaped through hole and the circular through hole, penetrating both the rectangular frame 21 and the slider 22. One end is fixed with a baffle 24, and the other end of the cylinder 23 is provided with an external thread. The nut 25 is connected to the threaded end of the cylinder 23 by thread. The rotating shaft 4 is rotatably installed between the sliders 22 of the two support columns 2 by bearings. The servo rotating shaft 7 is fixed on the rotating shaft of the slider rotating shaft 22 of one of the support column rotating shafts 2. The rotating shafts of the alarm light rotating shaft 10 and the controller rotating shaft 11 are both fixed on the top of the rectangular frame rotating shaft 21 of one of the support column rotating shafts 2.

[0023] When the height of the inkjet printer nozzle 1 needs to be adjusted according to different protective film thicknesses or coding requirements, the operator can loosen the nut 25 so that the slider 22 can move up and down in the groove of the rectangular frame 21, thereby adjusting the height of the inkjet printer nozzle 1. After the adjustment is completed, tighten the nut 25 so that the baffle 24 and the nut 25 cooperate to clamp the rectangular frame 21, thereby fixing the position of the slider 22.

[0024] Example 3: In this example, a conveyor 9 is installed on the base 8. The conveyor 9 is located between two support columns 2. The nozzle of the inkjet printer head 1 is vertically downward and located directly above the conveyor belt of the conveyor 9. In actual production, the protective film is placed on the conveyor belt of the conveyor 9. As the conveyor belt moves, the protective film passes under the inkjet printer head 1, and the inkjet printer head 1 performs coding operation on the protective film.

[0025] Example 4: In this example, the outer side of the rotating shaft 4 is engraved with horizontal scales. When installing the inkjet printer head 1, the operator can observe the scales on the rotating shaft 4 to precisely adjust the horizontal position of the inkjet printer head 1, ensuring that the nozzle of the inkjet printer head 1 accurately corresponds to the coding position of the protective film. During subsequent use, if it is necessary to adjust the horizontal position of the inkjet printer head 1, it can also be easily and quickly adjusted by observing the scales on the rotating shaft 4. In addition, the side of the rectangular frame 21 is also engraved with vertical scales. By observing the vertical scales engraved on the side of the rectangular frame 21, the operator can precisely adjust the slider 22 to the required height position.

[0026] Example 5: During actual operation, the operator can determine the cause of the inkjet printer head 1's tilt based on the number of alarm triggers. If the alarm is triggered after the inkjet printer head 1 has been adjusted to a horizontal position and only one alarm is triggered, the cause of the inkjet printer head 1's tilt may be that the installation angle is not fixed properly after the printhead is adjusted to a horizontal position. The inkjet printer head 1 can be straightened by using the servo motor 7. If the alarm is triggered multiple times, the cause of the inkjet printer head 1's tilt may be that the clamp 3 is loose. The operator needs to check the clamp 3. If the clamp 3 is loose due to loose bolts, the bolts of the clamp 3 can be tightened again. If the clamp 3 is loose due to fatigue wear, the clamp 3 on the back of the inkjet printer head 1 should be replaced, and then the inkjet printer head 1 should be reinstalled onto the rotating shaft 4 through the clamp 3.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A coding device for protective films, comprising a coding structure and a tilt adjustment structure, characterized in that: The coding structure includes a coding machine nozzle (1) and two support columns (2). A clamp (3) is fixed to the back of the coding machine nozzle (1). The two support columns (2) are fixed to the base (8) by bolts. A horizontally arranged rotating shaft (4) is rotatably installed between the two support columns (2). The coding machine nozzle (1) is installed on the rotating shaft (4) by the clamp (3). A shock-absorbing pad (5) is provided between the clamp (3) and the rotating shaft (4). The shock-absorbing pad (5) is fixed to the clamp (3). The tilt adjustment structure includes a tilt sensor (6), a servo motor (7), an alarm light (10), and a controller (11). The tilt sensor (6) is installed on the side of the coding machine nozzle (1). The servo motor (7), the alarm light (10), and the controller (11) are all installed on one of the support columns (2). The output shaft of the servo motor (7) is connected to the end of the rotating shaft (4). The tilt sensor (6), the servo motor (7), and the alarm light (10) are all connected to the controller (11).

2. The coding device for protective film according to claim 1, characterized in that: The support column (2) includes a rectangular frame (21), a slider (22), a cylinder (23), a baffle (24), and a nut (25). The inner side of the rectangular frame (21) is provided with a vertical groove. The slider (22) is slidably installed inside the rectangular frame (21). The rectangular frame (21) has vertical strip-shaped through holes on both sides. The slider (22) has a round through hole on the side corresponding to the position of the strip-shaped through hole. The cylinder (23) passes through the rectangular frame (21) and the slider (22) simultaneously through the strip-shaped through hole and the round through hole. One end of the cylinder (23) is fixed with a baffle (24). The other end of the cylinder (23) is provided with an external thread. The nut (25) is connected to the threaded end of the cylinder (23) by the thread.

3. The coding device for protective film according to claim 1, characterized in that: A conveyor (9) is installed on the base (8). The conveyor (9) is located between two support columns (2). The nozzle of the inkjet printer (1) is vertically downward and located directly above the conveyor belt of the conveyor (9).

4. The coding device for protective film according to claim 1, characterized in that: The outside of the rotating shaft (4) is engraved with horizontal scale.

5. A coding device for protective film according to claim 2, characterized in that: The rotating shaft (4) is rotatably mounted between the sliders (22) of the two support columns (2) via bearings, and the servo motor (7) is fixed on the slider (22) of one of the support columns (2).

6. A coding device for protective film according to claim 2, characterized in that: The alarm light (10) and the controller (11) are both fixed to the top of the rectangular frame (21) of one of the support columns (2).

7. A coding device for protective film according to claim 2, characterized in that: The rectangular frame (21) has vertical scales engraved on its side.

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