PE film laser code spraying equipment

Abstract

The utility model relates to the technical field of code spraying, in particular to a PE film laser code spraying device. The device comprises a device body, the device body comprises a conveying belt used for conveying PE packaging film products of different heights, a code spraying frame is arranged in the transmission direction of the conveying belt, and a code spraying head capable of sliding in the height direction is arranged at the code spraying frame; the code spraying head is provided with a connecting rod in the width direction, the connecting rod is provided with an inclined block making contact with the PE packaging film product, and the thickness of the inclined block is sequentially increased from the two ends to the center. And through the inclined block, when the PE packaging film products with different heights are marked, the lifting height of the inclined block is correspondingly changed, so that the code spraying head is always the same as the surfaces of the PE packaging film products, and the height of the code spraying head is automatically adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of inkjet coding, and specifically to a laser inkjet coding device for PE films. Background Art

[0002] PE film, that is, polyethylene film, has a wide range of applications in many fields due to its various excellent properties. Because of its good flexibility, cost-effectiveness and recyclability, PE material is a common choice for product packaging films. Some products wrapped in packaging films have multiple product variants with different heights.

[0003] Traditional PE film inkjet coding devices generally use UV inkjet coding. After spraying with UV ink, ultraviolet light curing is then applied. By replacing the UV inkjet gun with a laser inkjet gun and using the laser to burn out the code mark on the UV film, the use of UV ink is omitted, and the ultraviolet light curing process is also omitted. The key lies in the precise control of ultraviolet light. The code mark is shallow, and while burning out the code mark, the PE film is not burned through.

[0004] During the laser inkjet coding process of products with PE packaging films, it is necessary to adjust the height of the laser inkjet head according to the height of the products wrapped in the PE packaging film. However, in the prior art, the height of the laser inkjet head is mostly adjusted manually. When facing different height variants of multiple products, multiple adjustments are required, and the operation is rather cumbersome. Summary of the Utility Model

[0005] The utility model provides a laser inkjet coding device for PE films, which can overcome the defect that the manual adjustment of the height of the laser inkjet head in the prior art is rather cumbersome.

[0006] According to a laser inkjet coding device for PE films of the utility model, it includes a device body. The device body includes a conveyor belt for conveying PE packaging film products with different heights. A coding frame is arranged in the driving direction of the conveyor belt, and an inkjet head capable of sliding in the height direction is arranged at the coding frame; a connecting rod is arranged along the width direction of the inkjet head, and an inclined block in contact with the PE packaging film product is arranged at the connecting rod, and the thickness of the inclined block gradually increases from both ends to the center.

[0007] Through the inclined block, when marking PE packaging film products with different heights, the lifting height of the inclined block also changes accordingly, so that the surface of the inkjet head is always the same as that of the PE packaging film product, thereby realizing the automatic adjustment of the height of the inkjet head.

[0008] Preferably, a fixed seat is arranged on the upper part of the coding frame, a cavity is opened in the middle and lower part of the fixed seat, and the inkjet head slides in the cavity.

[0009] In the utility model, through the arrangement of the cavity, the sliding direction of the inkjet head is limited, preventing the sliding direction of the inkjet head from deviating, and improving the stability of code burning of the inkjet head.

[0010] Preferably, moving frames are provided on both sides of the inkjet rack. Guide columns are provided on the moving frames along the height direction, and guide grooves for sliding on the outer walls of the guide columns are provided on the upper surface of the inclined block along the height direction.

[0011] In the present utility model, through the arrangement of the guide columns, the inclined block is limited, preventing the inclined block from shifting during the contact with the PE packaging film product, and further improving the stability of the inkjet head burning code.

[0012] Preferably, the bottom of the inclined block includes an inclined surface and a flat surface, and the thickness from the side to the middle of the inclined surface increases sequentially. The PE packaging film product is slidably connected to the inclined surface and the flat surface.

[0013] In the present utility model, through the arrangement of the flat surface, the position of the inkjet head and the PE packaging film product is always the same during the burning code process, improving the burning code quality of the inkjet head.

[0014] Preferably, rotatable rolling columns are provided at the inclined surface and the flat surface, and the rolling columns are in rotational contact with the PE packaging film product.

[0015] In the present utility model, through the arrangement of the rolling columns, the friction generated when the PE packaging film product contacts the inclined block is reduced, preventing the surface of the PE packaging film product from being wrinkled and deformed.

[0016] Preferably, fitting grooves are provided at the inclined surface and the flat surface, a fitting frame is provided in the fitting grooves, a contact port is provided in the middle of the fitting frame, and the rolling columns are rotatably arranged at the middle parts on both sides of the contact port.

[0017] In the present utility model, the rolling columns are installed in a detachable manner, facilitating subsequent maintenance and repair by the staff.

[0018] Preferably, the shape of the fitting frame is the same as the shape of the bottom of the inclined block.

[0019] In the present utility model, through the arrangement of the fitting frame, the rolling columns are arranged according to the extending direction of the inclined surface and the flat surface, reducing the friction on the PE packaging film product while ensuring the stability of the inkjet head burning code.

[0020] Preferably, the fitting frame includes a first splicing frame and a second splicing frame, and a splicing seam is provided between the first splicing frame and the second splicing frame.

[0021] In the present utility model, by separating and combining the first splicing frame and the second splicing frame, it is convenient for the staff to install the rolling columns. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the device body in Embodiment 1;

[0023] Figure 2Schematic diagram of the front view of the inkjet rack in Embodiment 1;

[0024] Figure 3 Schematic diagram of the bottom view of the inkjet rack in Embodiment 1;

[0025] Figure 4 Schematic diagram of the inclined block in Embodiment 1. Detailed implementation manners

[0026] To further understand the content of the present utility model, the present utility model will be described in detail in combination with the embodiments. It should be understood that the embodiments are only for explaining the present utility model rather than limiting it.

[0027] Embodiment 1

[0028] As Figures 1-3 shown, this embodiment provides a PE film laser inkjet device, which includes a device body 100. The device body 100 includes a conveyor belt 110 for conveying PE packaging film products 140 of different heights. A inkjet rack 120 is provided in the driving direction of the conveyor belt 110, and an inkjet head 130 capable of sliding in the height direction is provided at the inkjet rack 120; a connecting rod 310 is provided in the width direction of the inkjet head 130, and an inclined block 210 in contact with the PE packaging film product 140 is provided at the connecting rod 310, and the thickness of the inclined block 210 increases sequentially from both ends to the center.

[0029] In this embodiment, the PE packaging film product 140 to be inkjet is placed on the surface of the conveyor belt 110. The conveyor belt 110 will send the PE packaging film product 140 into the inkjet rack 120. The PE packaging film product 140 will contact the bottom of the inclined block 210. During the movement of the PE packaging film product 140, the bottom of the inclined block 210 with the thickness increasing sequentially from both ends to the center will be squeezed, so as to lift the whole inclined block 210. The lifting of the inclined block 210 will lift the inkjet head 130 through the connecting rod 310, so that the PE packaging film product 140 is located below the inkjet head 130. The inkjet head 130 emits laser to mark the surface of the PE packaging film product 140. After the marking is completed, the conveyor belt 110 will send the PE packaging film product 140 out of the inkjet rack 120, and the inclined block 210 will return to its original position under the action of gravity. Through the inclined block 210, when marking PE packaging film products 140 of different heights, the lifting height of the inclined block 210 also changes accordingly, so that the inkjet head 130 is always at the same height as the surface of the PE packaging film product 140, thereby realizing automatic adjustment of the height of the inkjet head 130.

[0030] Combined with Figures 1-2As shown, in this embodiment, a fixed seat 150 is provided at the upper part of the inkjet coding frame 120. A cavity 320 is formed in the middle and lower parts of the fixed seat 150, and the inkjet head 130 slides in the cavity 320. Moving frames 160 are provided on both sides of the inkjet coding frame 120. Guide posts 220 are arranged along the height direction of the moving frames 160, and a guide groove 230 for sliding on the outer wall of the guide post 220 is arranged along the height direction on the upper surface of the inclined block 210.

[0031] When the inkjet head 130 moves in this embodiment, the inkjet head 130 slides in the cavity 320 in the fixed seat 150 to limit the sliding direction of the inkjet head 130, prevent the sliding direction of the inkjet head 130 from shifting, and improve the stability of the inkjet head 130 for coding. During the movement of the inclined block 210, the guide groove 230 will slide with the guide post 220, thereby limiting the inclined block 210 and preventing the inclined block 210 from shifting during the contact with the PE packaging film product 140, further improving the stability of the inkjet head 130 for coding.

[0032] Combined Figures 1-4 As shown, in this embodiment, the bottom of the inclined block 210 includes an inclined surface 410 and a flat surface 420, and the thickness of the inclined surface 410 gradually increases from the side to the middle. The PE packaging film product 140 is slidably connected to the inclined surface 410 and the flat surface 420. Rotatable rolling columns 430 are provided at the inclined surface 410 and the flat surface 420, and the rolling columns 430 are in rotational contact with the PE packaging film product 140.

[0033] When the PE packaging film product 140 contacts the inclined surface 410 in this embodiment, it will drive the inclined block 210 to move. When the PE packaging film product 140 moves to the flat surface 420 through the conveyor belt 110, the height of the inclined block 210 no longer changes, and the inkjet head 130 codes on the PE packaging film product 140 when it reaches the flat surface 420, preventing the height between the inkjet head 130 and the PE packaging film product 140 from changing during the coding process, thereby affecting the coding quality. Through the flat surface 420, the position of the inkjet head 130 and the PE packaging film product 140 is always the same during the coding process, improving the coding quality of the inkjet head 130. When the PE packaging film product 140 slides at the bottom of the inclined block 210, it will contact the rolling columns 430, and the rolling columns 430 will rotate along with the moving direction of the PE packaging film product 140, thereby reducing the friction generated when the PE packaging film product 140 contacts the inclined block 210 and preventing the surface of the PE packaging film product 140 from being wrinkled and deformed.

[0034] Combined Figure 4As shown in the figure, in this embodiment, fitting grooves 440 are provided at the inclined surface 410 and the flat surface 420. A fitting frame 450 is provided in the fitting groove 440. A contact port 460 is provided in the middle of the fitting frame 450. The rolling columns 430 are rotatably arranged in the middle of both sides of the contact port 460. The shape of the fitting frame 450 is the same as the shape of the bottom of the inclined block 210. The fitting frame 450 includes a first splicing frame 470 and a second splicing frame 480. A splicing seam 490 is provided between the first splicing frame 470 and the second splicing frame 480.

[0035] In this embodiment, the staff puts the rolling columns 430 into the contact port 460, and then inserts the fitting frame 450 into the fitting groove 440. The rolling columns 430 are installed by a disassembly method, which is convenient for the staff to perform subsequent maintenance and repair. The shape of the fitting frame 450 is the same as the shape of the bottom of the inclined block 210, so that the rolling columns 430 are arranged according to the extending directions of the inclined surface 410 and the flat surface 420, which not only reduces the friction force on the PE packaging film product 140, but also ensures the stability of the coder head 130 for coder burning. When the staff installs the rolling columns 430, the fitting frame 450 can be divided into the first splicing frame 470 and the second splicing frame 480 through the splicing seam 490, and then the rolling columns 430 are placed between the first splicing frame 470 and the second splicing frame 480. After the rolling columns 430 are placed, the first splicing frame 470 and the second splicing frame 480 are integrally connected into the fitting frame 450 through the splicing seam 490. The separation and combination of the first splicing frame 470 and the second splicing frame 480 facilitate the installation of the rolling columns 430 by the staff.

[0036] It is easy to understand that those skilled in the art can combine, split, recombine, etc. the embodiments of the present application based on one or several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0037] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the embodiments is only part of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the spirit of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A laser coding device for PE film, characterized in that, It includes a device body (100). The device body (100) includes a conveyor belt (110) for conveying PE packaging film products (140) of different heights. A coding rack (120) is provided in the driving direction of the conveyor belt (110), and a coding head (130) capable of sliding in the height direction is provided at the coding rack (120). A connecting rod (310) is provided in the width direction of the coding head (130). An inclined block (210) in contact with the PE packaging film product (140) is provided at the connecting rod (310), and the thickness of the inclined block (210) increases sequentially from both ends to the center thickness.

2. The laser coding device for PE film according to claim 1, wherein: A fixed seat (150) is provided at the upper part of the coding rack (120). A cavity (320) is opened in the middle and lower parts of the fixed seat (150), and the coding head (130) slides in the cavity (320).

3. A PE film laser coding device according to claim 1, characterized in that: Moving frames (160) are opened on both sides of the coding rack (120). Guide columns (220) are provided in the height direction of the moving frames (160). Guide grooves (230) for sliding on the outer wall of the guide columns (220) are provided in the height direction on the upper surface of the inclined block (210).

4. A PE film laser coding device according to claim 1, characterized in that: The bottom of the inclined block (210) includes an inclined surface (410) and a flat surface (420), and the thickness from the side to the middle of the inclined surface (410) increases sequentially. The PE packaging film product (140) is slidably connected to the inclined surface (410) and the flat surface (420).

5. The PE film laser coding device according to claim 4, characterized in that: Rotatable rolling columns (430) are provided at the inclined surface (410) and the flat surface (420), and the rolling columns (430) are in rotational contact with the PE packaging film product (140).

6. A PE film laser coding device according to claim 5, characterized in that: Fitting grooves (440) are opened at the inclined surface (410) and the flat surface (420). A fitting rack (450) is provided in the fitting grooves (440). A contact port (460) is provided in the middle of the fitting rack (450). The rolling columns (430) are rotatably provided on both sides of the middle of the contact port (460).

7. A PE film laser coding device according to claim 1 or 6, characterized in that: The shape of the fitting rack (450) is the same as the shape of the bottom of the inclined block (210).

8. A PE film laser coding device according to claim 7, characterized in that: The fitting rack (450) includes a first splicing rack (470) and a second splicing rack (480). A splicing seam (490) is provided between the first splicing rack (470) and the second splicing rack (480).

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