Patent Application
20060037455
The present utility model relates generally to pattern cutting equipment and, more particularly, to a pattern cutter.
The traditional paper-cutting handicrafts are a kind of work of art gaining immense popular favor. With a large variety of designs and high value of artistic appreciation, the paper-cutting handicrafts are very suitable to the kindergarten education of children. Abroad, these kind of paper-cutting products are widely used for children education. In the United States, for example, the paper-cutting products are very popularized. Generally, the paper, plastic pieces, rubber pieces or similar materials are cut into letters, cartoon, animals or human-shaped patterns for cultivation of children's cognitive ability and discrimination. But, the production efficiency is relatively low by using traditional hand paper-cutting method to make paper-cutting patterns, with a poor consistency in designs, hence it is not suitable for mass production. To overcome this deficiency, a process has been adopted to suit the mass production, i.e. firstly machining a pattern cutter for pattern cutting purpose. This pattern cutter is designed to work in such a way that the thin blade with a sharp cutting edge is bent to the pattern to be processed and it is embedded and fixed into a flat plate. Then, this pattern cutter is used to cut paper or similar flat sheet material. The material that is cut has an individual artistic pattern identical to that of the thin cutting blade, i.e. the products that are required. If the products of different shapes are to be made, what to do is only to change the pattern cutter with different shapes. In producing such pattern cutter, the thin cutting blade needs to be bent to pattern shape that is required. The existing method to form such blades is generally to bend them by hand, leading to extremely low production efficiency and poor processing accuracy. However, by use of the Forming Method and Its Equipment for Pattern Cutting Blade, which is disclosed in China Invention Patent Registration No. 01127727.0, to machine the cutting blades that are required, the blade forming speed will be greatly increased and production cost reduced. But, the technological process, through which the cutting blades are firstly machined and then assembled to a pattern cutter, will inevitably increase the processing and assembling steps, thereby the required materials and labor cost are still relatively high.
The object of the present utility model is to solve those problems occurring in the prior art and provide a pattern cutter, which is simple and rational in construction, easy to produce and use, low in manufacturing cost and good in product consistency.
The object of the present utility model is accomplished by using the following technical solutions. The present pattern cutter includes a base and cutting blade. The blade is located on the base. The blade forms the pattern shape for cutting. The said base and blade are of one-piece structure and machined into shape at one go through die-casting process.
The height of the said blade is located is greater than or equal to 2.5 mm on the base. The angle at the cutting edge of said blade is smaller than or equal to 60°.
The cross sectional shape of the said blade is of triangle or combination of triangle and rectangle or combination of triangle and trapezoid.
The said cutting blade is surfaced with a plating coat, and the material of the plating coat is harder metal, e.g. chromium, nickel, zinc, etc. The said plating coat is employed to raise the hardness of the blade (i.e. the plating coat can increase the hardness of die-cast blade from around HRC10 to HRC30 and above), thus this pattern cutter is made to be more durable.
The surface of the said base is in parallel with the face of cutting blade, and both of them can be either plane or arc curved surface.
The holding legs are integrally made on the said base at the other side opposite to the surface where the cutting blade is located. The said holding legs are used for connection with other fittings or allow an operator to directly hand hold the pattern cutter in operation.
In comparison to the prior art, the present utility model has the following advantageous effects. (1) Simple and rational construction. This pattern cutter comprises a base and cutting blade of one-piece structure. The construction has been further simplified, whereas the existing pattern cutter that needs the base and cutting blade to be machined separately, then embedded and assembled. And as compared with the prior art, it is more rational and there will be no such accidents that the blade breaks loose from the base due to improper installation. So, it is safer in operation. (2) Easy to make and low in cost. The present utility model utilizes die-casting process to produce pattern cutter, with a high production rate. Generally the output is 240 pieces per hour per unit. The use of the present utility model can greatly increase work efficiency, reduce product cost and improve economy efficiency. (3) High product accuracy and good consistency. The present utility model adopts a mould in production. So long as the machining accuracy of the mould and corresponding production conditions are guaranteed, the products that are turned out can have rather high processing quality, with less product errors and good consistency.
Below is a detailed description of the present utility model in conjunction with the working examples and accompanying drawings. But the implementation modes of the present utility model are not limited to those.
| Number | Date | Country | Kind |
|---|---|---|---|
| 200420071603.2 | Jul 2004 | CN | national |
