Auxiliary packaging bag laser coding device

By introducing a combination of a dust-wiping block and a laser marking end into the laser marking device for packaging bags, the problem of uneven marking caused by uneven dust distribution is solved, and a higher quality marking effect is achieved.

CN223971023UActive Publication Date: 2026-03-06WUHAN JINHEHAI PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Uneven dust distribution on the surface of packaging bags leads to different energy absorption and reflection during laser coding, resulting in varying shades of coding patterns or text, and uneven line thickness, affecting the uniformity and aesthetics of the coding.

Method used

An auxiliary packaging bag laser coding device was designed, which includes a dust removal block and a laser coding end. The dust removal block removes dust from the surface of the packaging bag, and then the laser coding end is used to perform coding.

Benefits of technology

It effectively removes dust from the surface of packaging bags, improves the uniformity and aesthetics of coding, and ensures coding quality.

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Abstract

The utility model relates to the technical field of packaging bag code printing equipment, and discloses an auxiliary packaging bag laser code printing device which comprises an operation table, a shell is fixedly connected to the upper surface of the operation table, a mounting plate is fixedly connected to the side wall of the shell, and a spring is fixedly connected to the lower surface of the mounting plate. A pressing cylinder is fixedly connected to the end, away from the mounting plate, of the spring, a containing shell is fixedly connected to the side, away from the spring, of the pressing cylinder, a dust wiping block is arranged on the inner wall of the containing shell, and a water tank is fixedly connected to the upper surface of the mounting plate. The packaging bag moves to pass through the dust wiping block, the dust wiping block removes dust on the surface of the packaging bag, then the electric push rod is opened, the electric push rod operates to drive the moving frame to move downwards, the moving frame moves downwards to drive the laser coding end to move downwards to be close to the packaging bag, and then the laser coding end codes the upper surface of the packaging bag. Therefore, the equipment has the effects of conveniently removing dust on the surface of the packaging bag and enhancing the code printing quality.
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Description

Technical Field

[0001] This application belongs to the technical field of packaging bag coding equipment, specifically an auxiliary packaging bag laser coding device. Background Technology

[0002] A laser marking device for packaging bags is a device used to mark and encode packaging bags. It uses laser technology to print on the packaging bag using a laser beam to achieve the purpose of identifying, encoding, and marking products. This device typically includes the following main parts: a laser marking machine, including components such as a laser generator, lens, and control system, used to generate a laser beam and control it to print on the packaging bag; a conveying system, used to transport the packaging bags to be marked to the working position of the laser marking machine in a certain order; and a control system, used to set and control parameters such as printing content, position, and speed to ensure printing quality and accuracy. Laser marking devices for packaging bags are commonly used in packaging production lines in industries such as food, pharmaceuticals, and chemicals to print information such as production date, batch number, barcode, and QR code on packaging bags. Compared with traditional inkjet marking or inkjet printing technology, laser marking has advantages such as clear marking, high durability, no consumables required, and simple operation. Therefore, it is widely used in some industries with high requirements for marking quality.

[0003] Referring to CN217673672U, a coding device for mushroom crisp packaging bags is described. The packaging bag is conveyed to the coding mechanism via a conveyor belt. When the nozzle presses down to code, the pressure frame, under the action of a spring, works with the support plate to first press and fix the packaging bag, and then the nozzle performs coding. A leveling mechanism pre-levels the packaging bag to ensure stable coding and improve coding quality. The overall structure is simple, easy to operate, and highly practical. It includes a base, a base column, and a conveyor belt. The base column is fixedly installed at the bottom of the base, and the conveyor belt is located above the base. It also includes a bracket, a cylinder, a mounting plate, a coding mechanism, a nozzle, a support mechanism, a pressing mechanism, and a leveling mechanism. The bracket is fixedly installed at the top of the base, the cylinder is fixedly installed at the top of the bracket, the mounting plate is fixedly installed at the bottom of the cylinder, the coding mechanism is located at the bottom of the mounting plate, the nozzle is located at the bottom of the coding mechanism, and the support mechanism is located at the top of the base.

[0004] However, the following problems still exist: dust is generated during the processing of packaging bags, and the distribution of dust on the surface of packaging bags is usually uneven. This causes the energy absorption and reflection of the laser to be different in dusty and dust-free areas during laser coding. In dusty areas, the laser energy may be absorbed or scattered by the dust, making the coding depth or color lighter. In dust-free areas, the coding effect is normal, resulting in uneven color depth and uneven line thickness of the entire coding pattern or text, affecting the uniformity and aesthetics of the coding. Utility Model Content

[0005] The purpose of this application is to address the problem that dust distribution on the surface of packaging bags is usually uneven, leading to different energy absorption and reflection of the laser during laser coding in dusty and dust-free areas. In dusty areas, the laser energy may be absorbed or scattered by the dust, resulting in shallower coding depth or color, while in dust-free areas, the coding effect is normal. This results in inconsistent color depth and line thickness of the entire coding pattern or text, affecting the uniformity and aesthetics of the coding. The application provides an auxiliary laser coding device for packaging bags.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] Based on the above technical solution, the present invention can be further improved as follows;

[0008] A laser coding device for auxiliary packaging bags includes an operating table. A housing is fixedly connected to the upper surface of the operating table. A mounting plate is fixedly connected to the side wall of the housing. A spring is fixedly connected to the lower surface of the mounting plate. A pressure cylinder is fixedly connected to the end of the spring away from the mounting plate. A placement shell is fixedly connected to the side of the pressure cylinder away from the spring. A wiping block made of sponge is provided on the inner wall of the placement shell. A water tank is fixedly connected to the upper surface of the mounting plate. A pipe is fixedly connected to the lower surface of the water tank. A valve is provided on the surface of the pipe. The end of the pipe away from the water tank penetrates the upper surface of the placement shell and extends into the interior of the placement shell. A support plate is fixedly connected to the upper surface of the operating table. A pad is fixedly connected to the upper surface of the support plate.

[0009] Preferably, an electric push rod is fixedly connected to the upper surface of the operating table, a movable frame is fixedly connected to the bottom end of the electric push rod, and a laser coding end is fixedly connected to the lower surface of the movable frame. After the electric push rod is running, it drives the laser coding end to move down through the movable frame to code the packaging bag.

[0010] Preferably, a lower pressure cylinder is fixedly connected to the upper surface of the operating table, and an upper pressure cylinder is fixedly connected to the lower surface of the mounting plate. A packaging bag is provided on the opposite side of the upper and lower pressure cylinders. The upper and lower pressure cylinders are pressed against the upper and lower sides of the packaging bag. The upper pressure cylinder uses the lower pressure cylinder to press the packaging bag tightly. When the packaging bag is pulled by an external conveying mechanism, the packaging bag is tightened to facilitate the laser coding end to perform coding.

[0011] Preferably, a limiting post is fixedly connected to the lower surface of the mounting plate, the spring is sleeved on the surface of the limiting post, and the inner wall of the pressure cylinder is adapted to the surface of the limiting post. When the spring is compressed and pushes the pressure cylinder in the opposite direction, the occurrence of spring deviation is reduced.

[0012] Preferably, an insert rod is provided on the side of the placement shell, and a threaded fixing cylinder is threadedly connected to the surface of the insert rod. The end of the insert rod away from the threaded fixing cylinder is tapered. Rotating the threaded fixing cylinder releases the fixing of the insert rod, and then the insert rod is pulled out of the placement shell, thereby disassembling the dust removal block and facilitating subsequent cleaning of the dust removal block.

[0013] Preferably, a support frame is fixedly connected to the lower surface of the operating table, and a support plate is fixedly connected to the upper surface of the operating table. By setting the support plate, when the laser coding end is coding, it can be supported under the packaging bag for easy coding.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, the pipe valve is first turned to open the pipe body. At this time, the water in the water tank flows from the pipe body into the placement shell and is then absorbed by the dust removal block. Then the pipe valve is closed, and the spring pushes the pressure cylinder. After the pressure cylinder is pushed, it passes through the placement shell and adheres the dust removal block to the upper surface of the packaging bag. The external conveying mechanism pulls the packaging bag to move. The packaging bag moves past the dust removal block, which removes the dust from the surface of the packaging bag. Then the electric push rod is opened. The electric push rod drives the moving frame to move down. The moving frame moves down and drives the laser marking end to move down and get close to the packaging bag. The laser marking end marks the upper surface of the packaging bag, so that the equipment has the effect of facilitating the removal of dust from the surface of the packaging bag and improving the marking quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main view structure of this application;

[0017] Figure 2 This is a schematic diagram of the exploded structure of the pressure cylinder in this application;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the insertion rod in this application.

[0019] The markings in the diagram are: 1. Operating table; 2. Support frame; 3. Packaging bag; 4. Outer shell; 5. Electric push rod; 6. Moving frame; 7. Laser marking end; 8. Water tank; 9. Mounting plate; 10. Spring; 11. Pressure cylinder; 12. Placement shell; 13. Dust removal block; 14. Pad plate; 15. Support plate; 16. Support plate; 17. Lower pressure cylinder; 18. Upper pressure cylinder; 19. Limiting post; 20. Pipe body; 21. Pipe valve; 22. Insert rod; 23. Threaded fixing cylinder. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example:

[0022] like Figure 2-3 A laser coding device for auxiliary packaging bags includes an operating table 1. A housing 4 is fixedly connected to the upper surface of the operating table 1. A mounting plate 9 is fixedly connected to the side wall of the housing 4. A spring 10 is fixedly connected to the lower surface of the mounting plate 9. A pressure cylinder 11 is fixedly connected to the end of the spring 10 away from the mounting plate 9. A placement shell 12 is fixedly connected to the side of the pressure cylinder 11 away from the spring 10. A dust-wiping block 13 is provided on the inner wall of the placement shell 12. The dust-wiping block 13 is made of sponge. The spring 10 pushes the pressure cylinder 11. After the pressure cylinder 11 is pushed, it adheres the dust-wiping block 13 to the upper surface of the packaging bag 3 through the placement shell 12. An external conveying mechanism pulls the packaging bag 3 to move. The packaging bag 3 moves past the dust-wiping block 13, and the dust-wiping block 13 wipes away the dust on the surface of the packaging bag 3.

[0023] like Figure 1-3 A water tank 8 is fixedly connected to the upper surface of the mounting plate 9, and a pipe body 20 is fixedly connected to the lower surface of the water tank 8. A pipe valve 21 is provided on the surface of the pipe body 20. The end of the pipe body 20 away from the water tank 8 passes through the upper surface of the placement shell 12 and extends into the interior of the placement shell 12. A support plate 15 is fixedly connected to the upper surface of the operating table 1, and a pad 14 is fixedly connected to the upper surface of the support plate 15. First, turn the pipe valve 21 to open the pipe body 20. At this time, the water in the water tank 8 flows into the placement shell 12 from the pipe body 20, and is then absorbed by the dust removal block 13. Then, close the pipe valve 21.

[0024] like Figure 1-2 An electric push rod 5 is fixedly connected to the upper surface of the operating table 1. A movable frame 6 is fixedly connected to the bottom end of the electric push rod 5. A laser coding end 7 is fixedly connected to the lower surface of the movable frame 6. By setting the electric push rod 5, it can drive the laser coding end 7 to move down through the movable frame 6 to code the packaging bag 3. This is the existing structure and will not be described in detail here. Then, the electric push rod 5 is opened again. The electric push rod 5 drives the movable frame 6 to move down. The moving frame 6 moves down and drives the laser coding end 7 to move down and get close to the packaging bag 3. The laser coding end 7 codes the upper surface of the packaging bag 3. A support frame 2 is fixedly connected to the lower surface of the operating table 1. A support plate 16 is fixedly connected to the upper surface of the operating table 1. By setting the support plate 16, when the laser coding end 7 is coding, it can be supported under the packaging bag 3 for easy coding.

[0025] like Figure 2-3 A lower pressure cylinder 17 is fixedly connected to the upper surface of the operating table 1, and an upper pressure cylinder 18 is fixedly connected to the lower surface of the mounting plate 9. A packaging bag 3 is provided on the opposite side of the upper pressure cylinder 18 and the lower pressure cylinder 17, and the upper pressure cylinder 18 and the lower pressure cylinder 17 are pressed against the upper and lower sides of the packaging bag 3. By setting the upper pressure cylinder 18, the lower pressure cylinder 17 can be used to press the packaging bag 3 tightly. When the packaging bag 3 is pulled by the external conveying mechanism, the packaging bag 3 is tightened to facilitate the laser coding end 7 to perform coding.

[0026] like Figure 1-2 The lower surface of the mounting plate 9 is fixedly connected to the limiting post 19, the spring 10 is sleeved on the surface of the limiting post 19, and the inner wall of the pressure cylinder 11 is adapted to the surface of the limiting post 19. By setting the limiting post 19, when the spring 10 is pressed and pushes the pressure cylinder 11 in the opposite direction, the occurrence of spring 10 deviation can be reduced.

[0027] like Figure 2-3 A rod 22 is inserted through the side of the housing 12. A threaded fixing cylinder 23 is threadedly connected to the surface of the rod 22. The end of the rod 22 away from the threaded fixing cylinder 23 is tapered. By setting the threaded fixing cylinder 23, the fixing of the rod 22 can be removed after rotation. Then the rod 22 can be pulled out from the housing 12, thereby disassembling the dust removal block 13, which is convenient for subsequent cleaning of the dust removal block 13.

[0028] The implementation principle of the auxiliary packaging bag laser coding device of this application is as follows: First, turn the pipe valve 21 to open the pipe body 20. At this time, the water in the water tank 8 flows from the pipe body 20 into the placement shell 12, and is then absorbed by the dust removal block 13. Then, close the pipe valve 21, and the spring 10 pushes the pressure cylinder 11. After the pressure cylinder 11 is pushed, it passes through the placement shell 12 to attach the dust removal block 13 to the upper surface of the packaging bag 3. The external conveying mechanism pulls the packaging bag 3 to move. The packaging bag 3 moves past the dust removal block 13, and the dust removal block 13 removes the dust from the surface of the packaging bag 3. Then, open the electric push rod 5. The electric push rod 5 drives the moving frame 6 to move down. The moving frame 6 moves down and drives the laser coding end 7 to move down and get close to the packaging bag 3. The laser coding end 7 codes the upper surface of the packaging bag 3, so that the device has the effect of facilitating the removal of dust from the surface of the packaging bag 3 and improving the coding quality.

[0029] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An auxiliary packaging bag laser coding device, comprising an operating table (1), characterized in that: The upper surface of the operating platform (1) is fixedly connected with a shell (4), the side wall of the shell (4) is fixedly connected with a mounting plate (9), the lower surface of the mounting plate (9) is fixedly connected with a spring (10), one end of the spring (10) away from the mounting plate (9) is fixedly connected with a pressing cylinder (11), one side of the pressing cylinder (11) away from the spring (10) is fixedly connected with a placing shell (12), the inner wall of the placing shell (12) is provided with a dust wiping block (13), and the material of the dust wiping block (13) is sponge, the upper surface of the mounting plate (9) is fixedly connected with a water tank (8), the lower surface of the water tank (8) is fixedly connected with a pipe body (20), the surface of the pipe body (20) is provided with a pipe valve (21), one end of the pipe body (20) away from the water tank (8) penetrates through the upper surface of the placing shell (12) and extends to the inside of the placing shell (12), and the upper surface of the operating platform (1) is fixedly connected with a supporting plate (15), the upper surface of the supporting plate (15) is fixedly connected with a backing plate (14).

2. The auxiliary packaging bag laser coding device according to claim 1, characterized in that: The upper surface of the operating platform (1) is fixedly connected with an electric push rod (5), the bottom end of the electric push rod (5) is fixedly connected with a moving frame (6), and the lower surface of the moving frame (6) is fixedly connected with a laser coding end (7).

3. The auxiliary packaging bag laser coding device according to claim 1, characterized in that: The upper surface of the operating platform (1) is fixedly connected with a lower pressing cylinder (17), the lower surface of the mounting plate (9) is fixedly connected with an upper pressing cylinder (18), the opposite surfaces of the upper pressing cylinder (18) and the lower pressing cylinder (17) are provided with a packaging bag (3), and the upper pressing cylinder (18) and the lower pressing cylinder (17) are attached to the upper and lower sides of the packaging bag (3).

4. The auxiliary packaging bag laser coding device according to claim 1, characterized in that: The lower surface of the mounting plate (9) is fixedly connected with a limiting column (19), the spring (10) is sleeved on the surface of the limiting column (19), and the inner wall of the pressing cylinder (11) is matched with the surface of the limiting column (19).

5. The auxiliary packaging bag laser coding device according to claim 1, characterized in that: The side surface of the placing shell (12) is provided with a plug rod (22), the surface of the plug rod (22) is threadedly connected with a threaded fixing cylinder (23), and one end of the plug rod (22) away from the threaded fixing cylinder (23) is conical.

6. The auxiliary packaging bag laser coding device according to claim 1, characterized in that: The lower surface of the operating platform (1) is fixedly connected with a supporting frame (2), and the upper surface of the operating platform (1) is fixedly connected with a supporting plate (16).

Citation Information

Patent Citations

  • Code printing device for shiitake mushroom crisp chip packaging bag

    CN217673672U