Copper ring sleeve gold stamping roller

Abstract

The utility model relates to the technical field of gold stamping processes, and particularly discloses a copper ring sleeve gold stamping roller which comprises a roller body, copper ring sleeves and iron clamping rings, the copper ring sleeves and the iron clamping rings are both in a circular ring shape and are arranged on the roller body in a sleeving mode, and the copper ring sleeves are arranged between the two adjacent iron clamping rings; the diameter of the copper ring sleeve is larger than that of the iron clamping ring. The problem that in the prior art, a gold blocking roller is prone to generating the gold flying defect is solved.

Description

Technical Field

[0001] This application relates to the field of hot stamping technology, specifically to a copper ring hot stamping roller. Background Technology

[0002] Hot stamping rollers are the most important tool in the hot stamping process. Their function is to make the graphic or text area to be stamped raised on the hot stamping rollers, and then transfer the electroplated aluminum between the stamping rollers and the hot stamping rollers onto the product through high temperature and high pressure, forming a hot stamped product.

[0003] Existing hot stamping rollers use an integral copper plate structure, forming raised patterns on the copper plate surface through mechanical engraving or etching processes. During high-temperature and high-pressure operations, the electroplated aluminum foil is prone to producing small particles that detach after being heated. Because the copper plate surface of traditional hot stamping rollers has a near-planar structure, the detached metal particles are easily pressed back into the substrate by adjacent printing rollers, forming a "flying gold" defect. Summary of the Invention

[0004] The purpose of this application is to provide a copper ring hot stamping roller to solve the problem of "flying gold" defects that are easy to occur in the hot stamping rollers of the prior art.

[0005] To achieve the above objectives, this application provides a copper ring hot stamping roller, comprising: a roller body, a copper ring, and an iron retaining ring, wherein...

[0006] Both the copper ring and the iron retaining ring are circular and are fitted onto the roller body, with the copper ring positioned between two adjacent iron retaining rings.

[0007] The diameter of the copper ring is larger than the diameter of the iron retaining ring.

[0008] Optionally, the roller body surface is provided with a positioning keyway along the axial direction, and both the copper ring sleeve and the iron retaining ring are provided with radial positioning keys that cooperate with the positioning keyway.

[0009] Optionally, the working surface of the copper ring sleeve is provided with a raised hot stamping pattern.

[0010] Optionally, the iron retaining ring is made of martensitic stainless steel and has undergone surface nitriding treatment.

[0011] Optionally, the surface of the copper ring is provided with an electroplated chromium layer with a plating thickness of 8μm-12μm.

[0012] Optionally, the contact surface between the copper ring sleeve and the iron retaining ring is provided with a tapered mating surface, and the tapered angle is 5°-15°.

[0013] The embodiments of this application have the following advantages:

[0014] Compared with existing technologies, the copper ring sleeve in the copper ring hot stamping roller provided by the above technical solution is higher than the iron retaining ring, so that the particles that fall off after electroplated aluminum hot stamping will not be rolled into the paper roll, avoiding the occurrence of flying gold defects, and saving 1 / 3 of the plate making cost. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a copper ring hot stamping roller provided in at least one embodiment of this application.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Roller body, 2. Copper ring sleeve, 3. Iron retaining ring. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. 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.

[0020] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0021] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0022] This application provides a copper ring sleeve hot stamping roller, see reference. Figure 1 It includes: roller body 1, copper ring sleeve 2, and iron retaining ring 3, wherein the copper ring sleeve 2 and the iron retaining ring 3 are both circular rings, both sleeved on the roller body 1, and the copper ring sleeve 2 is disposed between two adjacent iron retaining rings 3.

[0023] In some embodiments, the diameter of the copper ring sleeve 2 is larger than the diameter of the iron retaining ring 3.

[0024] Specifically, the copper ring 2 is higher than the iron ring 3, so that the particles that fall off after electroplated aluminum hot stamping will not be rolled into the paper roll, avoiding the occurrence of gold flying defects, and saving 1 / 3 of the plate making cost.

[0025] In some embodiments, the roller body 1 has a positioning keyway along the axial direction on its surface, and both the copper ring sleeve 2 and the iron retaining ring 3 are provided with radial positioning keys that cooperate with the positioning keyway.

[0026] Specifically, 3-6 positioning keyways are evenly distributed along the circumference of the roller body 1, and the included angle α between the centers of adjacent keyways is 60°-120°; the mating clearance between the radial positioning key and the positioning keyway is ≤0.02mm.

[0027] In some embodiments, the working surface of the copper ring sleeve 2 is provided with a raised hot stamping pattern.

[0028] In some embodiments, the iron retaining ring 3 is made of martensitic stainless steel and has undergone surface nitriding treatment.

[0029] In some embodiments, the surface of the copper ring sleeve 2 is provided with an electroplated chromium layer, the thickness of which is 8μm-12μm.

[0030] In some embodiments, the contact surface between the copper ring sleeve 2 and the iron retaining ring 3 is provided with a tapered mating surface, and the tapered angle is 5°-15°.

[0031] In summary, compared with the prior art, the copper ring sleeve 2 of the hot stamping roller provided in this application is higher than the iron retaining ring 3, so that the particles that fall off after electroplated aluminum hot stamping will not be rolled into the paper roll, avoiding the occurrence of gold flying defects, and saving 1 / 3 of the plate making cost.

[0032] Note that, unless otherwise explicitly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by alternative features for achieving the same, equivalent, or similar purpose. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features. Where used, "further," "preferably," "even further," and "more preferably" are simple starting points for describing another embodiment based on the foregoing embodiments, the combination of which with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment constitutes yet another embodiment.

[0033] In the implementation of functions and steps, the corresponding functions and steps in the various embodiments may occur in a different order than those shown. For example, two consecutive functions and steps may actually be executed or implemented substantially in parallel, and they may sometimes be executed or implemented in reverse order, depending on the functions involved.

[0034] Although this application has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of this application fall within the scope of protection claimed in this application.

Claims

1. A copper ring jacketed gold plated roll characterized in that, The copper ring sleeve gold stamping roller comprises a roller body, a copper ring sleeve and an iron ring, wherein, the copper ring sleeve and the iron ring are both circular rings, are sleeved on the roller body, and the copper ring sleeve is arranged between two adjacent iron rings; the diameter of the copper ring sleeve is larger than that of the iron ring.

2. The copper ring sleeve gold stamping roller according to claim 1, wherein, an axial positioning key groove is formed on the surface of the roller body, and the copper ring sleeve and the iron ring are both provided with radial positioning keys matched with the positioning key groove.

3. The copper ring sleeve gold stamping roller according to claim 1, wherein, a convex gold stamping pattern is arranged on the working surface of the copper ring sleeve.

4. The copper ring sleeve gold stamping roller according to claim 1, wherein, the iron ring is made of martensitic stainless steel and is subjected to surface nitriding treatment.

5. The copper ring sleeve gold stamping roller according to claim 1, wherein, an electroplated chromium layer is arranged on the surface of the copper ring sleeve, and the thickness of the plating layer is 8-12 μm.

6. The copper ring sleeve gold stamping roller according to claim 1, wherein, a tapered matching surface is arranged on the contact surface of the copper ring sleeve and the iron ring, and the taper angle is 5-15°. ​

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