Patent Application
20070193458
The present invention relates to impression molds for relief art, more particularly to an impression mold for relief art in which the pattern is replaceable, thereby reducing printing time and production cost.
To enhance three-dimensional visual effect and add values to printed pattern, relief art is commonly used. The traditional impressed patterns of relief art are realized by an impression mold pressing on a piece of paper, which is categorized into manual impression molds, impression cylindrical molds and metallic impression molds. In manual impression molds, a copper plate having the negative mold corresponding to the pattern to be impressed is placed under a piece of paper. The paper sheet is then pressed by a push rod with a round head, whereby the paper sheet is deformed toward the depressions of the negative mold, therefore producing bulged pattern of relief art on the other side of the paper. This means for producing works of relief art is time-consuming and of high labor cost.
An impression cylindrical mold includes a cylinder whose surface is provided with a predetermined pattern. The impression cylindrical mold, sometimes heated, is rolled against a piece of paper and causes facial deformation over the impressed paper, whereby a pattern of relief art can be produced.
A metallic impression mold comprises a pair of metallic plates or a metallic plate and a plastic plate. A piece of paper is sandwiched by the plates. A pattern of relief art will be produced on the paper via a process of metallic stamping or casting.
All of the above mold types have the disadvantage that the pattern to be impressed is not replaceable. Namely, one mold can print only one pattern. To print another pattern, a new mold has to be made, which is not only expensive but time consuming.
The primary objective of the present invention is to provide an impression mold for relief art wherein pattern pieces are removable, and they can be rearranged freely on a mold frame. Therefore, the problems of fixed pattern, high mold cost and multiple molds can be solved. The present invention is indeed a practical way to produce works of relief art.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings.
Referring to
On one side of the first mold plate 1, there a mold frame 12 around the edge of the first mold plate 1, which defines a mold area 11 therein. There is further a set of retaining holes 13 on the mold area 11 and at least a positioning pin 14. At one edge on the opposite side of the first mold plate 1, there is a plurality of antislip strips 15.
Each of the first pattern pieces 2 is a plate main body 21 of predetermined size and shape, whose one side is provided with a predetermined pattern embodied in a depressed pattern portion 22. The opposite side of the plate main body 21 is provided with at least one retaining member 23 corresponding to one of the retaining holes 13 on the first mold plate 1. Thereby, the first pattern pieces 2 are detachable.
One side of the second mold plate 3 is provided with another mold frame 32 and a bulged mold area 31. The second mold plate 3 can be coupled with the first mold plate 1, in which the mold area 31 corresponds to the mold area 11. The mold area 31 is also provided with a set of retaining holes 33, and the mold frame 32 is provided with at least one positioning pin 34 that corresponds to the positioning pin 14 on the first mold plate 1. At one edge on the opposite side of the second mold plate 3, there is a plurality of antislip strips 35.
Each of the second pattern pieces 4 is a plate main body 41 of predetermined size and shape, whose one side is provided with a predetermined pattern embodied in a bulged pattern portion 42. The bulged pattern portion 42 corresponds to the depressed pattern portion 22 on a first pattern piece 2. The opposite side of the plate main body 41 is provided with at least one retaining member 43 corresponding to one of the retaining holes 33 on the second mold plate 3. Thereby, the second pattern pieces 4 are detachable.
Thereby, a user can choose a set of first pattern pieces 2 and their corresponding second pattern pieces 4 to render a pattern on the first mold plate 1 and the second mold plate 3. Thereby, the impression mold assembled can be used to produce the pattern, in the form of relief art, on a piece of paper. Further, since the pattern pieces (2, 4) are detachable, different pattern to be printed can be easily arranged on the impression mold. To finalize the impression, a impressing device 5 is used to process the impression mold, whereby a pattern of relief art on a paper sheet will be formed.
As shown in
Referring to FIGS. 5 to 8, the process of applying a pattern of relief art on a piece of paper will be illustrated. A first pattern piece 2 and a corresponding second pattern piece 4 are chosen to be respectively attached on the first mold plate 1 and the second mold plate 3 by inserting the retaining members 23, 43 into the retaining holes 13, 23. A piece of paper is place between the first mold plate 1 and the second mold plate 3, sandwiched by the coupled first pattern piece 2 and second pattern piece 4, as shown in
Since the first mold plate 1 and the second mold plate 3 are all provided with retaining holes 13, 33, a user can conveniently choose first pattern pieces 2 and the corresponding second pattern pieces 4 of different predetermined patterns to produce a variety of patterns of relief art on paper.
Meanwhile, since the first pattern pieces 2 and the second pattern pieces 4 are respectively attached onto the first mold plate 1 and the first pattern pieces 2 through the insertion of the retaining members 23, 43 into the corresponding to the retaining holes 13, 33, the pattern pieces (2, 4) can be easily detached from and rearranged on the mold plates (1, 3) to form various patterns of relief art. This is a substantial improvement from an impression mold of the prior art whose pattern is fixed. Therefore, the present invention can reduce of cost of impression painting.
The removable pattern piece 8 is detachably connected to the mold plate 7. Each of the pattern pieces 8 is a slab body having a surface provided with a predetermined pattern for relief art and an opposite surface with at least one retaining member corresponding to the retaining holes 73, whereby the pattern pieces 8 can be attached onto the mold plate 7. Thereby, the pattern pieces 8 will produce the predetermined pattern on a piece of paper as the mold plate 7 is being guided through an impressing device 5.
The present invention is thus described, and it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
