JPH0344524Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a mask for a foil stamping machine that is used by being attached to the stamping head of a foil stamping machine.

[Conventional technology]

Foil stamping machines are already known for transferring gold leaf, etc. in the form of letters or other patterns onto various articles. a foil supply section consisting of a mounting table for conveying the foil base material, a supply roll for feeding a continuous roll of foil onto the foil stamping target on the mounting base, and a winding roll for winding up the foil base material after foil stamping; It consists of various parts of the hot type and the hot stamping head, which is made up of a heater that heats the type, and when the mounting table and the hot stamping head come into relative contact with each other and are pressurized, the hot stamped object on the mounting table is heated. The foil is configured so that the foil is transferred along the shape of the letters of the foil stamping type.

[Problem that the invention attempts to solve]

However, with conventional foil stamping machines, when stamping a material with cushioning properties (i.e., low rigidity), when pressure is applied, the type sinks into the part of the material to be foil stamped. However, in addition to the necessary characters, there is an unavoidable disadvantage that the shape of the peripheral part of the type is stamped with foil, and this problem cannot be solved even if the pressurization pressure is adjusted. In addition, if the foil stamping object touches the foil when supplying or discharging the foil stamping object, the foil is likely to come off, which may hinder continuous foil stamping. When feeding or discharging in a direction perpendicular to the feeding direction, the foil tends to come off.

Therefore, the present invention aims to eliminate these drawbacks.

[Means for solving problems]

The present invention solves the problems of the prior art described above, and according to the present inventor, a leaf spring is attached close to the hot stamping head, and the periphery of the hot stamped part of the object to be hot stamped is pressed to create a cushion. It has been found that foil stamping can be carried out without any problems by hollowing out the leaf spring part to expose only the necessary foil stamping area. In other words, the gist of the present invention is as follows: ``A window for foil stamping is provided by hollowing out the leaf spring approximately in the center of the belt-shaped leaf spring, and both ends of the leaf spring are fixed to supporting plates, and the supporting plate is a plate. A mask for a foil stamping machine characterized by having a fixing part for rotatably fixing the mask to a stamping head of a foil stamping machine when the spring is bent.

1 to 6 are diagrams showing an embodiment of the present invention, FIGS. 1 to 4 show the foil stamping mask itself, and FIGS. 5 and 6 show its usage.

As shown in FIG. 1 (front view) and FIG. 2 (plan view), a printing window 2 is provided at approximately the center of the strip-shaped leaf spring 1 by hollowing out the leaf spring, and a printing window 2 is provided at both ends of the leaf spring 1. are fixed to the supporting plates 3, 3' with studs 4, 4'. The plate spring is made of stainless steel and has a thickness of 0.2 mm, for example. The support plate 3 has an L-shaped cross section in the figure, and is also made of stainless steel, steel, or the like. The window 2 has the required size, usually the size of a typeface. Further, in this example, the foil passing guide 5 wraps around the leaf spring 1 around the area where the window 2 is located. Foil threading guide 5
is made of a tube of transparent plastic film such as polypropylene having a thickness of 25 to 100 μm, and the foil threading guide 5 is also hollowed out to the size of the window 2 in the window portion. As shown in FIGS. 3 and 4, a gap 6 is formed at the bottom of the plate spring 1 between the foil passing guide 5 and the leaf spring 1, and the dimensions are adjusted so that the foil passes through this gap 6. There is. Foil threading guide 5
Since the foil is guided along the lower part of the leaf spring 1, the foil is not cylindrical but may have any other shape as long as it can surround the lower part of the leaf spring 1 and form the gap 6.

Although this foil threading guide 5 is not essential in terms of suppressing the cushioning properties of the object to be hot stamped, it is necessary in terms of preventing the foil from coming off during foil stamping.

FIG. 5 schematically shows a foil stamping machine using the foil stamping mask of the present invention, in which a book 8 whose cover is made of a material with cushioning properties is placed on a mounting table 7. Foil 11 is supplied above between a foil supply roll 9 and a foil take-up roll 10, and the foil 11 is passed through the gap of the foil passing guide in FIG. I feel supported. The leaf spring 1 is fixed via a support plate 3 to a base plate 13 of a hot stamping head together with hot stamping type 12 (here, the type is provided on the circumferential surface of a disk). For example, the support plates 3 and 3' are provided with one through hole 14 and 14' for attachment in the rising portion, and a stud having an outer diameter slightly smaller than the inner diameter of these through holes 14 and 14' is provided. etc., the board 13
It is attached rotatably around the through holes 14, 14'. When hot stamping is not being performed, the distance between the supporting plates 13, 13' is narrowed so that the leaf spring 1 becomes convex toward the side on which the hot stamped object is placed.

FIG. 6 shows a state in which foil stamping is performed, and the book 8 is pressurized by either or both of the mounting table and the substrate approaching each other. Here, since the leaf spring 1 is pushed as the book 8 approaches, it lies almost in a straight line along the book, and the left and right portions of the straight line have a shape that stands up vertically.

[Functions and effects of the idea]

As the leaf spring 1 deforms in this way, pressure is applied to the book 8 due to the difference in the shape of the leaf spring shown in FIG. 5 and the shape of the leaf spring shown in FIG. Because the periphery of the area is pressed down and deformation extends to the central foil-stamped area, by the time more pressure is applied with type, the area to be foil-stamped has already fallen considerably, compared to foil stamping with type only. Since the deformation of the foil-stamped portion is reduced, there is an advantage that the shape of the peripheral portion of the type is not stamped with foil.

[Brief explanation of the drawing]

1 to 4 show embodiments of the present invention.
The figure is a front view, FIG. 2 is a plan view, FIG. 3 is a cross-sectional view of the part indicated by - in FIG. 2, FIG. FIG. 6 and FIG. 6 are schematic diagrams showing how the mask of the present invention is used. 1... Leaf spring, 2... Window for foil stamping, 3... Support plate, 5... Foil threading guide, 6... Gap, 14...
Through hole.

Claims (1)

[Scope of utility model registration request] A window for foil stamping is provided in the center of the strip-shaped leaf spring by hollowing out the leaf spring, and both ends of the leaf spring are fixed to support plates. A mask for a foil stamping machine, comprising a fixing part for rotatably fixing to a foil stamping head.