A plate-inserting type holographic positioning plate roller

Abstract

The utility model relates to holographic positioning mould pressing technical field, propose a kind of insert edition holographic positioning mould pressing plate roll, including plate roll body and mould pressing plate, the inherent gap is set up on the outer cylindrical surface of plate roll body along axial direction, the mould pressing plate is metal sheet, it is inserted and anchored in the inherent gap by its own edge, to be fixed on the outer cylindrical surface of plate roll body without adhesive tightly cover. The utility model cancels the use of 3M adhesive tape, reduces production cost, reduces replacement maintenance frequency;Mould pressing plate and plate roll body are directly attached, heat is directly transferred, improve heat efficiency, to improve mould pressing brightness;Mould pressing plate is fixed by inherent gap, avoids displacement in heating process, ensures the precision and consistency of mould pressing pattern;The inherent gap between holographic pattern is used to solve the edition joint problem of insert edition, to enhance the anti-fake effect and pattern continuity.

Description

Technical Field

[0001] This utility model relates to the field of holographic positioning molding technology, specifically to an insert-type holographic positioning molding roller. Background Technology

[0002] In holographic positioning molding, 3M tape is typically used to attach the molding plate to the surface of the molding roller for fixation. This method has several drawbacks: First, the 3M tape forms a thermal barrier layer between the molding plate and the roller, hindering direct heat transfer and leading to uneven heat distribution and reduced molding brightness during the molding process. Second, the tape softens during heating, easily causing relative displacement between the molding plate and the roller, thus affecting the accuracy and consistency of the molded pattern. Furthermore, the long-term use of the tape increases production costs and replacement frequency. Therefore, there is an urgent need for a molding roller structure that can improve heat transfer efficiency and molding accuracy. Utility Model Content

[0003] To achieve the above objectives, this utility model is implemented through the following technical solution: an insert-type holographic positioning molding roller, comprising a roller body and a molding plate, wherein an inherent gap is provided along the axial direction on the outer cylindrical surface of the roller body, and the molding plate is a metal sheet, which is inserted into and anchored in the inherent gap through its own edge, thereby tightly covering and fixing it to the outer cylindrical surface of the roller body without adhesive.

[0004] Preferably, the width of the inherent gap is 0.5 mm to 2 mm.

[0005] Preferably, the thickness of the molding plate is 0.1 mm to 0.3 mm.

[0006] Preferably, the first and last edges of the molding plate are both inserted into and fixed in the same inherent gap.

[0007] Preferably, the back surface of the molding plate is a smooth plane that directly contacts the outer cylindrical surface of the printing roller body.

[0008] Preferably, the molding plate is directly bonded to the printing roller body to achieve direct heat transfer.

[0009] This invention provides an insert-type holographic positioning molding roller. It has the following beneficial effects:

[0010] This invention eliminates the use of 3M tape, reducing production costs and the frequency of replacement and maintenance; the molding plate is directly bonded to the printing roller body, allowing for direct heat transfer and improving thermal efficiency, thereby enhancing the brightness of the molding; the molding plate is fixed by inherent gaps, avoiding displacement during the heating process and ensuring the accuracy and consistency of the molded pattern; the gaps between holographic patterns solve the problem of gaps in the insert type, enhancing the anti-counterfeiting effect and pattern continuity. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of an insert-type holographic positioning molding roller according to the present invention;

[0012] Figure 2 This is an enlarged view of point A of the insert-type holographic positioning molding roller of this utility model;

[0013] Figure 3 This is a perspective view of the printing roller body in the insert-type holographic positioning molding roller of this utility model;

[0014] Figure 4 This is an enlarged view of section B of the insert-type holographic positioning molding roller of this utility model;

[0015] Figure 5 This is a cross-sectional view of an insert-type holographic positioning molding roller according to the present invention.

[0016] Among them, 1. Printing roller body; 2. Molding plate; 21. First edge; 22. Last edge; 3. Inherent gap. Detailed Implementation

[0017] 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.

[0018] Example:

[0019] like Figures 1-5 As shown, this embodiment provides a novel insert-type holographic positioning molding roller, which mainly includes a roller body 1 and a molding plate 2.

[0020] The printing roller body 1 is typically a steel cylinder, and a heating device (not shown in the figure) may be installed inside. A narrow, inherent gap 3 is machined along the axial direction on the outer cylindrical surface of the printing roller body 1. The width W of this inherent gap 3 is a key parameter, preferably ranging from 0.5 mm to 2 mm. If the width W is less than 0.5 mm, the edge of the molding plate 2 will be difficult to insert; if the width W is greater than 2 mm, the molding plate 2 may loosen during use due to the excessively wide gap, or obvious gap indentations may appear on the molded product. In this embodiment, the width W is preferably 1 mm.

[0021] The embossing plate 2 is preferably made of a thin sheet of nickel or stainless steel with a thickness H of 0.1 mm to 0.3 mm. This thickness range ensures that the embossing plate 2 has both good flexibility (for easy wrapping of the printing roller) and sufficient rigidity (to guarantee the pattern pressing pressure). The back of the embossing plate 2 is a highly flat and smooth surface to ensure maximum fit with the outer cylindrical surface of the printing roller body 1. The front of the embossing plate 2 is formed with a precise holographic pattern through processes such as photolithography and electroforming.

[0022] The installation and fixing process of molding plate 2 is as follows:

[0023] First, align one edge of the molding plate 2 (i.e., the first edge 21) and insert it into the inherent slot 3 on the printing roller body 1. Since the thickness H of the molding plate 2 is slightly smaller than the width W of the inherent slot 3, or by slightly widening the slot with a special tool, the insertion is feasible. The insertion depth is preferably 5-15 mm. Then, manually or with the aid of equipment, tightly wrap the molding plate 2 around the outer cylindrical surface of the printing roller body 1. Finally, tighten the other edge of the molding plate 2 (i.e., the last edge 22) and similarly insert it into the inherent slot 3, aligning it with or partially overlapping the first edge 21 within the slot. At this point, since the diameter of the printing roller body 1 is fixed, the molding plate 2 wrapped around it generates circumferential tension. This tension forces the first edge 21 and the last edge 22 of the molding plate 2 to be firmly held within the narrow inherent slot 3, thus achieving a secure mechanical fixation without any adhesive.

[0024] To eliminate the inherent gap 3 from leaving marks on the molded product, this invention employs a meticulous layout design. When manufacturing the molding plate 2, the precise spacing P of each holographic pattern on the molding plate 2 needs to be calculated based on the spacing D of each unit pattern on the object being stamped (such as packaging film) and the circumference L of the printing roller body 1. Through layout design, the position of the naturally formed layout gaps (i.e., blank areas without patterns) between adjacent holographic patterns can be precisely aligned with the position of the inherent gap 3 after the molding plate 2 is wrapped around the printing roller body 1. Thus, during the molding process, the imprinted area corresponding to the inherent gap 3 is precisely the dividing or blank area between unit patterns on the product, perfectly "hiding" the gap and ensuring the integrity and aesthetics of the molded pattern.

[0025] During operation, the printing roller body 1 is heated and rotated, and its heat is directly and efficiently transferred to the molding plate 2 through metal-to-metal contact. Due to the absence of thermal resistance from the tape, the temperature of the working surface of the molding plate 2 is uniform and stable, enabling the printing of holographic patterns with high brightness and clarity. Simultaneously, the mechanical tensioning and fixing method completely eliminates displacement of the molding plate 2 under heat and stress, ensuring that each holographic pattern is precisely transferred to the predetermined position.

[0026] 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 variations 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 holographic positioning molding roller with an insert plate, comprising a roller body (1) and a molding plate (2), characterized in that: The outer cylindrical surface of the printing roller body (1) has an inherent gap (3) along the axial direction. The molding plate (2) is a metal plate, which is inserted into and anchored in the inherent gap (3) through its own edge, so as to tightly wrap and fix it to the outer cylindrical surface of the printing roller body (1) without adhesive.

2. The insert-type holographic positioning molding roller according to claim 1, characterized in that: The width of the inherent gap (3) is 0.5 mm to 2 mm.

3. The insert-type holographic positioning molding roller according to claim 2, characterized in that: The thickness of the molded plate (2) is 0.1 mm to 0.3 mm.

4. The insert-type holographic positioning molding roller according to claim 1, characterized in that: The first edge (21) and the last edge (22) of the molding plate (2) are both inserted into and fixed in the same inherent gap (3).

5. The insert-type holographic positioning molding roller according to claim 1, characterized in that: The back of the molding plate (2) is a smooth plane that is in direct contact with the outer cylindrical surface of the printing roller body (1).

6. The insert-type holographic positioning molding roller according to claim 1, characterized in that: The molding plate (2) is directly attached to the printing roller body (1) to achieve direct heat transfer.

Images