A packaging bag date laser printer based on visual recognition

Abstract

The utility model discloses a kind of packaging bag date laser printer based on visual identification, it is related to packaging bag printing field, including base and the packaging bag transport platform of base middle end setting, and the front end of base is equipped with laser printer by vertical plate installation, the outside of packaging bag transport platform is equipped with clamping assembly.The packaging bag date laser printer based on visual identification, add small oilless vacuum pump, optimize negative pressure pipeline, the pipeline after optimization can simultaneously open stretch to the upper and lower ends of plastic packaging bag, so when subsequent laser printing date, it can reduce the influence of wrinkle printing quality, avoid the leakage printing caused by bag opening exception, visual detector is set in the middle end of vertical plate, the state of plastic packaging bag can be captured, specific state can be sensed, can be under the action of visual identification, further improve the precision of printing, whether printing error condition can also be screened simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag printing technology, specifically a packaging bag date laser printer based on visual recognition. Background Technology

[0002] When filling the gummies into the packaging, a laser printer is used to print the date on the surface of the packaging to indicate the production date of the gummies inside.

[0003] In existing technologies, when printing packaging bags using laser technology, the printing angle needs to be adjusted, making the overall operation cumbersome and inconvenient for users.

[0004] To overcome the above shortcomings, a prior art Chinese patent (publication number CN218749960U) discloses a high-precision date laser printer for food production packaging bags, including a conveying device. The conveying device has a support on its bottom surface, an inkjet printer mounted on one side, guide plates on both sides, a vertical support column in the middle of the guide plate, mounting plates on the two inner sides of the support column, and a through groove on the surface of the mounting plate. A transmission screw is movably connected to the middle of the groove, the upper end of the transmission screw is fixedly mounted in the groove by bolts, and an impression head is fixedly mounted on the lower end of the transmission screw by bolts. A hydraulic cylinder is provided on the surface of the impression head, and the hydraulic cylinder is connected to the impression head in a transmission connection. Through the groove and the transmission screw, a slider on the surface of the impression head slides along the groove on the inner surface of the groove, causing the impression head to slide on the top surface of the mounting plate, thereby adjusting the impression position of the impression head relative to the conveyor frame and achieving adjustment of the impression head angle.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, after the packaging bag is opened, the suction force of the vacuum negative pressure is easily insufficient, causing abnormal bag suction and opening. When printing the date, wrinkles on the surface of the packaging bag can easily lead to missing dates and incomplete printing, which can easily cause abnormal stops and result in significant packaging material waste. Utility Model Content

[0006] The purpose of this utility model is to provide a laser printer for packaging bags based on visual recognition, in order to solve the problems mentioned in the background art, such as insufficient vacuum suction after the packaging bag is opened, resulting in abnormal bag suction and opening, and the date being easily missed or incompletely printed due to wrinkles on the surface of the packaging bag, which can easily cause abnormal stops and large packaging material losses.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser printer for packaging bag dates based on visual recognition, comprising a base and a packaging bag transport platform disposed in the middle of the base, wherein a laser printer is mounted on the front end of the base via a vertical plate, a clamping component is disposed on the outer side of the packaging bag transport platform, a negative pressure suction device is disposed on the right side of the base, and the two ends of the negative pressure suction device correspond to the clamping component, an oil-free vacuum pump is disposed at the front end of the packaging bag transport platform, and the output end of the oil-free vacuum pump corresponds to the lower part of the clamping component, and a visual recognition mechanism corresponding to the clamping component is disposed at the rear end of the vertical plate.

[0008] Furthermore, the lower end of the oil-free vacuum pump is mounted on the upper end of the base, and the oil-free vacuum pump works synchronously with the negative pressure suction device.

[0009] Furthermore, the visual recognition mechanism is equipped with a visual inspection instrument, and the front end of the visual inspection instrument is fixedly installed at the rear end of the upright plate, and the image capture end of the visual inspection instrument is aligned with the top of the clamping assembly.

[0010] Furthermore, a central control processor is provided at the upper end of the vision inspection instrument, and the central control processor is electrically connected to the vision inspection instrument.

[0011] Furthermore, a first storage cavity is installed at the rear end of the upright plate, and a threaded screw is rotatably installed at the bottom of the first storage cavity. The lower end of the threaded screw is connected to the output end of the motor, and the inner side of the motor is installed on the outer side of the upright plate.

[0012] Furthermore, a lifting pressure block is threadedly installed on the surface of the threaded screw, and the outer side of the lifting pressure block is attached to the inner wall of the first storage cavity. A second storage cavity is sleeved on the upper end of the lifting pressure block, and the inner side of the second storage cavity is fixedly installed on the surface of the upright plate.

[0013] Furthermore, the second storage cavity is equipped with an elastic airbag, and the lower end of the elastic airbag forms a pressing structure with the upper end of the lifting pressure block. An auxiliary air jet is connected to the inner side of the elastic airbag through an air guide pipe, and the end of the auxiliary air jet is fixedly installed on the surface of the upright plate. The output end of the auxiliary air jet is aligned with the upper end of the clamping assembly. A one-way air inlet is connected to the outer side of the elastic airbag, and a one-way valve is provided inside the one-way air inlet.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. Add a small oil-free vacuum pump and optimize the negative pressure pipeline. The optimized pipeline can open and stretch both ends of the plastic packaging bag at the same time. This will reduce the impact of wrinkles on print quality when laser printing the date later and avoid missing prints caused by abnormal bag opening.

[0016] Furthermore, a vision inspection device is installed in the middle of the upright plate, which can capture the state of the plastic packaging bag and sense its specific state. With the help of visual recognition, the printing accuracy can be further improved, and the printing error can also be screened.

[0017] 2. After the plastic packaging bag is moved to the laser printer position, the motor is started, which causes the lifting pressure block to rise and embed itself into the second storage cavity. When the lifting pressure block is embedded in the second storage cavity, it squeezes the elastic airbag. The compressed elastic airbag delivers the air inside to the auxiliary air nozzle through the air guide tube. The air entering the auxiliary air nozzle blows downward into the opened plastic packaging bag, thereby further expanding the plastic packaging bag and preventing wrinkles on the plastic packaging bag from affecting the printing quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a top-view three-dimensional structural diagram of the present invention.

[0020] Figure 3 This is a side view of the three-dimensional structure of the present invention.

[0021] Figure 4 This is a cross-sectional perspective view of the first and second storage cavities of this utility model.

[0022] Figure 5 This is a side sectional three-dimensional structural diagram of the threaded screw of this utility model.

[0023] Figure 6 This is a side-view three-dimensional structural diagram of the auxiliary jet nozzle of this utility model.

[0024] In the diagram: 1. Base; 2. Packaging bag transport platform; 3. Clamping assembly; 4. Negative pressure suction device; 5. Oil-free vacuum pump; 6. Vertical plate; 7. Laser printer; 8. Vision inspection instrument; 9. Central control processor; 10. First storage chamber; 11. Threaded screw; 12. Lifting pressure block; 13. Second storage chamber; 14. Elastic airbag; 15. Auxiliary air jet; 16. One-way air inlet. Detailed Implementation

[0025] 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.

[0026] Example 1: As Figures 1-3 The technical solution shown is a laser printer for packaging bags based on visual recognition. To address the issue of printing errors in laser printing, it discloses: a base 1 and a packaging bag transport platform 2 located in the middle of the base 1. A laser printer 7 is mounted on the front end of the base 1 via a vertical plate 6. A clamping assembly 3 is located on the outer side of the packaging bag transport platform 2. A negative pressure suction device 4 is located on the right side of the base 1, with both ends of the negative pressure suction device 4 corresponding to the clamping assembly 3. An oil-free vacuum pump 5 is located at the front end of the packaging bag transport platform 2. The output end corresponds to the lower part of the clamping component 3. The rear end of the upright plate 6 is provided with a vision recognition mechanism corresponding to the clamping component 3. The lower end of the oil-free vacuum pump 5 is installed on the upper end of the base 1, and the oil-free vacuum pump 5 works synchronously with the negative pressure suction device 4. The vision recognition mechanism is provided with a vision inspection instrument 8, and the front end of the vision inspection instrument 8 is fixedly installed on the rear end of the upright plate 6. The image capture end of the vision inspection instrument 8 is aligned with the upper part of the clamping component 3. The upper end of the vision inspection instrument 8 is provided with a central control processor 9, and the central control processor 9 is electrically connected to the vision inspection instrument 8.

[0027] A packaging bag transport platform 2 is installed at the upper end of the base 1. Clamping components 3 are evenly distributed on the outer side of the packaging bag transport platform 2. While clamping the packaging bag, the clamping components 3 can rotate and transport it. When the packaging bag is transported to the position of the negative pressure suction device 4, the negative pressure suction device 4 opens the opening at the top of the plastic packaging bag. Figure 3 As shown, by adding an oil-free vacuum pump 5, the lower end of the plastic packaging bag is suctioned and pulled, and the negative pressure pipeline is optimized, so that the plastic packaging bag is opened more thoroughly. At this time, as the plastic packaging bag is opened by the robotic arm on the packaging bag transport platform 2, it is transported to the laser printer 7 in the middle of the upright plate 6. It is inspected by the vision inspection instrument 8 and the central control processor 9. Through vision inspection, the date is accurately coded, thereby reducing downtime, reducing waste of plastic packaging bags, and further improving production capacity.

[0028] Example 2: Figure 1 , Figure 4 , Figure 5 and Figure 6The technical solution shown, based on Embodiment 1, discloses the following to address the issue of incomplete expansion: a first storage cavity 10 is installed at the rear end of the upright plate 6, and a threaded screw 11 is rotatably installed at the bottom of the first storage cavity 10. The lower end of the threaded screw 11 is connected to the output end of a motor, and the inner side of the motor is installed on the outer side of the upright plate 6. A lifting pressure block 12 is threaded onto the surface of the threaded screw 11, and the outer side of the lifting pressure block 12 is fitted against the inner wall of the first storage cavity 10. A second storage cavity 13 is sleeved on the upper end of the lifting pressure block 12. Furthermore, the inner side of the second storage cavity 13 is fixedly installed on the surface of the upright plate 6. An elastic airbag 14 is provided inside the second storage cavity 13, and the lower end of the elastic airbag 14 forms a pressing structure with the upper end of the lifting pressure block 12. An auxiliary jet port 15 is connected to the inner side of the elastic airbag 14 through an air guide pipe. The end of the auxiliary jet port 15 is fixedly installed on the surface of the upright plate 6. The output end of the auxiliary jet port 15 is aligned with the upper end of the clamping assembly 3. A one-way air inlet 16 is connected to the outer side of the elastic airbag 14, and a one-way valve is provided inside the one-way air inlet 16.

[0029] After the plastic packaging bag moves to the position of the laser printer 7, the motor is started, causing the threaded screw 11 to rotate. When the threaded screw 11 rotates inside the first receiving cavity 10, it drives the lifting block 12, which is threaded to the surface. Under the limit of the first receiving cavity 10, the lifting block 12 rises and embeds itself into the second receiving cavity 13. When the lifting block 12 is embedded in the second receiving cavity 13, it compresses the elastic airbag 14. The compressed elastic airbag 14 delivers the air inside through the air duct to the auxiliary air nozzle 15. The air entering the auxiliary air nozzle 15 blows downwards into the opened plastic packaging bag, further expanding the plastic packaging bag and preventing wrinkles on the plastic packaging bag from affecting the printing quality. Conversely, if... Figure 5 As shown, when the motor, i.e. the servo motor, rotates in the reverse direction, it can drive the lifting pressure block 12 to descend, so that the elastic airbag 14 resets by its own elasticity, and at the same time, it draws air through the one-way valve inside the one-way air inlet 16, so that the elastic airbag 14 is refilled with air, achieving the effect of being reusable.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser printer for packaging bag date based on visual recognition, comprising a base (1) and a packaging bag transport platform (2) disposed in the middle of the base (1), wherein a laser printer (7) is mounted on the front end of the base (1) via a vertical plate (6). Its features are: The outer side of the packaging bag transport platform (2) is provided with a clamping component (3), the right side of the base (1) is provided with a negative pressure suction device (4), and the two ends of the negative pressure suction device (4) correspond to the clamping component (3). The front end of the packaging bag transport platform (2) is provided with an oil-free vacuum pump (5), and the output end of the oil-free vacuum pump (5) corresponds to the bottom of the clamping component (3). The rear end of the upright plate (6) is provided with a visual recognition mechanism corresponding to the clamping component (3).

2. The laser printer for packaging bag date recognition based on claim 1, characterized in that: The lower end of the oil-free vacuum pump (5) is installed on the upper end of the base (1), and the oil-free vacuum pump (5) works synchronously with the negative pressure suction device (4).

3. A laser printer for packaging bag date recognition based on claim 1, characterized in that: The visual recognition mechanism is equipped with a visual inspection instrument (8), and the front end of the visual inspection instrument (8) is fixedly installed at the rear end of the upright plate (6), and the image capture end of the visual inspection instrument (8) is aligned with the top of the clamping assembly (3).

4. A laser printer for packaging bag date recognition based on claim 3, characterized in that: The upper end of the vision inspection instrument (8) is provided with a central control processor (9), and the central control processor (9) is electrically connected to the vision inspection instrument (8).

5. A laser printer for packaging bag date recognition based on claim 1, characterized in that: The rear end of the upright plate (6) is provided with a first storage cavity (10), and a threaded screw (11) is rotatably installed at the bottom of the first storage cavity (10). The lower end of the threaded screw (11) is connected to the output end of the motor, and the inner side of the motor is installed on the outer side of the upright plate (6).

6. A laser printer for packaging bag date recognition based on claim 5, characterized in that: The threaded screw (11) is threaded with a lifting pressure block (12), and the outer side of the lifting pressure block (12) is attached to the inner wall of the first storage cavity (10). The upper end of the lifting pressure block (12) is fitted with a second storage cavity (13), and the inner side of the second storage cavity (13) is fixedly installed on the surface of the upright plate (6).

7. A laser printer for packaging bag date recognition based on claim 6, characterized in that: The second receiving cavity (13) is provided with an elastic airbag (14), and the lower end of the elastic airbag (14) forms a pressing structure with the upper end of the lifting pressure block (12). The inner side of the elastic airbag (14) is connected to an auxiliary jet port (15) through an air guide pipe. The end of the auxiliary jet port (15) is fixedly installed on the surface of the upright plate (6). The output end of the auxiliary jet port (15) is aligned with the upper end of the clamping assembly (3). The outer side of the elastic airbag (14) is connected to a one-way air inlet (16), and a one-way valve is provided inside the one-way air inlet (16).

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