Plastic film laser coding device

Abstract

The utility model discloses a plastic film laser coding device which comprises a laser assembly, a plastic film penetrates through the lower portion of the laser emitting end of the laser assembly, and further comprises a supporting roller assembly which comprises a first double-roller assembly located at the inlet end of a machining station of the laser assembly and a second double-roller assembly located at the outlet end of the machining station. A plastic film sequentially penetrates through the first double-roller assembly and the second double-roller assembly and is clamped through the first double-roller assembly and the second double-roller assembly, so that vibration and shaking of the plastic film are restrained or reduced, the adverse effect of vibration or shaking on laser coding is restrained, and the problem of fuzzy coding is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of outer packaging production equipment, in particular to a plastic film laser coding device. Background Art

[0002] Traditional coding of flexible packaging is mostly achieved through inkjet or thermal transfer. With the development of technology, laser coding has gradually been applied, especially in composite flexible packaging in the fields of medicine and food. Compared with traditional coding, the application of laser coding in composite flexible packaging has more advantages. The working principle of laser coding is to gather extremely high-energy lasers together to form a laser beam with higher energy, which is then irradiated onto the surface of the object to be coded. The surface material of the coded object is vaporized through laser burning or etching, thereby achieving coding. By controlling the path of the laser beam, the required graphic information can be etched on the surface of the object, and the text or pattern carved out by laser etching is quite fine, which can better ensure the accuracy of the coding position. Based on the above advantages of laser coding, our company has introduced laser coding technology to process graphic information on the surface of flexible packaging. However, in the actual processing process, it is found that due to the continuous or intermittent movement of the flexible packaging plastic film, the vibration generated during the movement and the jitter of the equipment, as well as the micro-vibration generated during the superposition of the laser coding process, will cause the vibration or jitter of the plastic film to be enough to affect the precise position of the laser coding, resulting in blurred or skewed dislocation or overlap of the laser coding pattern. Summary of the invention

[0003] The utility model aims to provide a plastic film laser coding device, which is intended to solve the problem that the laser coding is blurred or misaligned due to the vibration or shaking of the plastic film during the laser coding process of the plastic film.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] A plastic film laser coding device comprises a laser component, the plastic film passes through the bottom of the laser emission end of the laser component, and also comprises a support roller component, which comprises a first pair of roller components located at the entrance end of the laser component processing station and a second pair of roller components located at the exit end of the processing station, and the plastic film passes through the first pair of roller components and the second pair of roller components in sequence.

[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: the first pair of roller assemblies and the second pair of roller assemblies each include a metal lower roller and a rubber upper roller.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes an adsorption component, which is located at the laser component processing station, and the adsorption surface of the adsorption component faces the plastic film; the plastic film is located above the adsorption surface, and is partially or completely kept in contact with the adsorption surface under the action of the adsorption component.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the adsorption assembly includes at least two adsorption grooves, the openings of the adsorption grooves are located on the adsorption surface; the adsorption grooves are connected to the negative pressure device through a connecting channel.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: two adsorption grooves are provided, and are respectively adjacent to the two ends of the adsorption component, and the part of the adsorption surface located between the two adsorption grooves is a plane.

[0010] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects: the plastic film is clamped by the first pair of roller assemblies and the second pair of roller assemblies, thereby suppressing or reducing the vibration and jitter of the plastic film, thereby suppressing the adverse effects of vibration or jitter on laser coding and improving the problem of blurred coding; in addition, an adsorption assembly is provided to adsorb the plastic film so that the plastic film is tightly attached to the adsorption surface, thereby further reducing or eliminating the vibration or jitter of the plastic film, thereby significantly improving the quality of laser coding and improving the clarity of coding. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the adsorption component structure. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution in the embodiment will be clearly and completely described below in conjunction with the drawings in the embodiment. Obviously, the described embodiment is only a part of the embodiment of this application, not all embodiments. Based on the given embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0014] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0015] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0016] Combination Figure 1-2 As shown, the present application discloses a plastic film laser coding device, including a laser assembly 10, a plastic film 40 passing through the bottom of the laser emission end of the laser assembly 10, and a support roller assembly 20, which includes a first pair of roller assemblies 20a located at the inlet end of the processing station of the laser assembly 10 and a second pair of roller assemblies 20b located at the outlet end of the processing station, and the plastic film 40 passes through the first pair of roller assemblies 20a and the second pair of roller assemblies 20b in sequence. Preferably, the first pair of roller assemblies 20a and the second pair of roller assemblies 20b each include a metal lower roller and a rubber upper roller. The plastic film is clamped and supported by the first pair of roller assemblies and the second pair of roller assemblies, and the suspended span of the plastic film is reduced, so that the vibration and jitter of the plastic film can be suppressed or reduced, thereby suppressing the adverse effects of vibration or jitter on laser coding and improving the problem of coding fuzziness.

[0017] Of course, the effect of reducing the suspended span of the plastic film and supporting the plastic film by setting the first pair of roller assemblies 20a and the second pair of roller assemblies 20b is limited. In order to further control the vibration of the plastic film, the present embodiment further preferably includes an adsorption assembly 30, which is located at the processing station of the laser assembly 10, and the adsorption surface of the adsorption assembly 30 faces the plastic film 40; the plastic film 40 is located above the adsorption surface, and partially or completely keeps in contact with the adsorption surface under the action of the adsorption assembly 30. Specifically, the adsorption assembly 30 includes a body, and at least two adsorption grooves 31 are opened on the body, and the openings of the adsorption grooves 31 are located on the adsorption surface; the adsorption grooves 31 are connected to the negative pressure device through the connecting channel 311, so that the plastic film can be well attached to the adsorption surface through the vacuum adsorption of the adsorption grooves 31, thereby suppressing and eliminating the vibration and jitter of the plastic film to the greatest extent, further reducing or eliminating the vibration or jitter of the plastic film, and then significantly improving the quality of laser coding and the clarity of coding. Among them, it is preferred that two adsorption grooves 31 are provided, and they are respectively adjacent to the two ends of the adsorption component 30. The part of the adsorption surface located between the two adsorption grooves 31 is a plane, and the two ends of the plastic film located on the adsorption surface are adsorbed by the two adsorption grooves 31 on the adsorption surface, so that its processing part is located on the plane of the adsorption surface, thereby suppressing and eliminating the vibration and jitter of the plastic film on the one hand; on the other hand, it avoids the problem of concave deformation of the processing area of ​​the plastic film due to vacuum adsorption, which leads to distortion of the coding of the plastic film; of course, it should be noted that according to the specific film thickness and the moving speed of the plastic film, the vacuum degree and the opening width of the adsorption groove can be adaptively selected and controlled, so that it can reliably adsorb the plastic film and keep it in contact with the adsorption surface while avoiding damage to the plastic film or unnecessary pulling.

[0018] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic film laser coding device, comprising a laser assembly (10), wherein a plastic film (40) passes through below a laser emitting end of the laser assembly (10), and wherein: It also includes a supporting roller assembly (20), which includes a first pair of roller assemblies (20a) located at the entrance end of the processing station of the laser assembly (10) and a second pair of roller assemblies (20b) located at the exit end of the processing station, and the plastic film (40) passes through the first pair of roller assemblies (20a) and the second pair of roller assemblies (20b) in sequence.

2. A plastic film laser coding device according to claim 1, characterized in that: The first pair of roller assemblies (20a) and the second pair of roller assemblies (20b) each comprise a metal lower roller and a rubber upper roller.

3. A plastic film laser coding device according to claim 1, characterized in that: It also comprises an adsorption component (30), which is located at the processing station of the laser component (10), and the adsorption surface of the adsorption component (30) faces the plastic film (40); the plastic film (40) is located above the adsorption surface, and partially or completely keeps in contact with the adsorption surface under the action of the adsorption component (30).

4. A plastic film laser coding device according to claim 3, characterized in that: The adsorption assembly (30) comprises at least two adsorption grooves (31), and the openings of the adsorption grooves (31) are located on the adsorption surface; the adsorption grooves (31) are connected to the negative pressure device through a connecting channel (311).

5. A plastic film laser coding device according to claim 4, characterized in that: Two adsorption grooves (31) are provided, and are respectively adjacent to two ends of the adsorption assembly (30); the portion of the adsorption surface located between the two adsorption grooves (31) is a plane.

Images