KR200416608Y1 - A cutting frame able to partial change of cutter - Google Patents

Abstract

The present invention maintains the processing precision of the workpiece by cutting and cutting the cutting knife, which is separately processed and inserted into the insertion groove formed on the base, and can be partially replaced when some of the plurality of cutting knives are damaged, thereby reducing the post-management and maintenance costs. It is compatible with existing products, and even when the cutting mold is replaced, the upper mold does not need to be replaced so that the manufacturing cost is significantly reduced compared to the prior art, which had to have both male and female suits. The present invention relates to a cutting mold capable of partial replacement of a cutting knife to reduce volume and to facilitate storage and management.

The present invention for realizing this is installed in the press lower die and provided with a plurality of blades on the base to cut the workpiece by pressing the upper mold, the insertion groove for fixing the knife body of the cutting knife to the base The recess is formed to a predetermined depth, characterized in that the cutting knife is fixed to the insertion groove of the base.

Description

A cutting frame able to partial change of cutter}

1 is a perspective view of a prior art

2 is a partially omitted cross-sectional view of the prior application technology by the present applicant,

3 is a partial cross-sectional view showing the configuration of an embodiment according to the present invention

Figure 4 is a partial cross-sectional view showing the configuration of one embodiment according to the present invention.

Figure 5 is a partial cross-sectional view showing the configuration of one embodiment according to the present invention.

Figure 6 is a partial cross-sectional view showing the configuration of one embodiment according to the present invention.

Figure 7 is a partial cross-sectional view showing the configuration of one embodiment according to the present invention.

8 is an explanatory diagram showing a process flow according to the manufacturing method of the present invention,

9 is an installation state of an embodiment according to the present invention

* Explanation of symbols for the main parts of the drawings

1: cutting mold which can be partially replaced by cutting knife

10: base 11: insertion groove 30: cutting knife

31: knife body 33: blade

The present invention relates to a cutting mold, in particular, the cutting knife is processed separately and fixed to the insertion groove formed in the base to maintain the processing accuracy of the workpiece, and partially replaceable when some of the plurality of cutting knives are damaged Management and maintenance costs are reduced, and it is compatible with existing products, and even if the cutting mold is replaced with another model, the upper mold does not need replacement, so the manufacturing cost is remarkably higher than that of the prior art, which had to have both male and female suits. The present invention relates to a cutting mold capable of partial replacement of a cutting knife that not only reduces costs but also shortens delivery time and reduces the volume of a mold, thereby facilitating storage and management.

For example, a product such as a keypad sheet of a mobile phone terminal is followed by a multi-step punching process and a cutting process on a plate-like product material, and these processes are performed in a cutting press device.

In the cutting press apparatus for performing the cutting process, a cutting mold having a cutting knife is usually installed on a lower die, and an upper mold installed on the upper die is used for cutting and processing a workpiece by lifting and lowering of the pressing means. do.

As shown in FIG. 1, the cutting mold 100 is provided with a plurality of cutting knives 130 protruding upwardly from the base 110 to form through-holes 115 in the base 110 made of wood. Next, since the cutting knife 130 is installed and fixed, the base 110 and the cutting knife 130 have to be manufactured separately, and the upper mold is excessively involved in the relationship between the male and female cutting molds 100, so that the manufacturing cost is reduced. On the other hand, there is a problem that the cutting knife 130 flows through the through hole 115 due to repeated pressurization of the upper mold and loses processing precision.

In addition, it is a male and female coupling type, so every time the cutting mold needs to be replaced up to the upper mold, the loss of time and cost is enormous, and the height of the cutting knife 130 is constant. ) The task was difficult.

As an alternative to this problem, the applicant has previously applied for a 'cutting die formed integrally with the blade' as the application number 10-2005-001256.

The first application technology 200 according to the applicant of the present invention, as shown in Figure 2, a portion of the cross-section, the base 210 and the cutting knife 230 is formed in a single body can reduce the mold manufacturing process, cutting processability It is a technique that increases the height and facilitates the formation of various types of cutting knives. However, some problems have been found in the above-described application technology.

It has a problem that the material loss is large because the base 210 and the cutting knife 230 is integrally formed, and even if only one of the plurality of blades is damaged, the whole cannot be used. In other words, there was a difficulty in partial repair.

The present invention has been devised to solve the above problems,

The object of the present invention is that the cutting knife is processed separately and fixed to the insertion groove blocked in the lower portion formed in the base to maintain the processing accuracy of the workpiece, and if some of the plurality of cutting knives are damaged, it is possible to partially replace the post management and The present invention provides a cutting mold capable of partial replacement of a cutting knife to significantly reduce maintenance costs.

Another object of the present invention is compatible with existing products, and even when the cutting mold is replaced with a different model, the corresponding upper mold does not need replacement, thus significantly reducing the manufacturing cost compared to the prior art, which had to have both male and female suits. In addition to providing a cutting mold capable of partial replacement of the cutting knife to shorten the delivery time and reduce the volume of the mold to facilitate storage and management.

In the cutting mold capable of partially replacing the cutting knife according to the present invention to achieve the above object, the cutting mold is installed in the press lower die and a plurality of blades are provided in the base to cut the workpiece by pressing the upper mold,

Insertion groove for inserting the knife body of the cutting knife to the base is formed concave to a predetermined depth,

A cutting knife is fixedly installed in the insertion groove of the base.

Hereinafter, with reference to the accompanying drawings an embodiment of a cutting mold capable of partial replacement of the cutting knife of the present invention will be described in more detail.

3 is a partially omitted cross-sectional view showing the configuration of an embodiment according to the present invention.

As shown in Figure 3, the cutting mold (1) capable of partial replacement of the cutting knife of the embodiment according to the present invention is installed in the lower die of the press and a plurality of cutting knives are provided in the base to be avoided by the pressure of the upper mold In the cutting mold for cutting the workpiece, an insertion groove 11 for inserting and fixing the knife body 31 of the cutting knife 30 to the base 10 is recessed to a predetermined depth, and the insertion groove 11 of the base. Cutting knife 30 is fixed to).

Here, the cutting knife 30 is inclined portion of the blade 33 formed on the front end of the knife body 31 is formed only on the outside or both inner and outer sides (see Fig. 4).

In addition, the cutting knife 30 may have a different height (h1) (h2) of the blade 33, which is the front end of the knife body (see Fig. 5). This is for simultaneously cutting the part in which the workpiece is doubled and both layers are cut and only one layer is cut.

In addition, as shown in Figure 6, the knife body 31 is formed on the inner circumferential surface stepped step 32 coupled to the insertion groove 11 of the base, the base 10, the cutting knife 30 A chip discharge hole 13 connected in a straight line to the inner circumferential surface 35 of) may be formed through.

The chip discharge hole 13 may have an extended end 13a having a larger internal space below (see FIG. 7).

Such a method of manufacturing a cutting mold, as shown in Figure 8, in the production of a cutting mold having a plurality of cutting knives in the base, the knife body 31 is disposed on the base 10 by grinding the raw material Base processing step (S1) for concave forming the insertion groove 11 to a predetermined depth at the position to be cut, the blade body for forming a knife body 31 by processing the raw material of the cutting knife 30 after grinding and processing into a cutting line shape Processing step (S2), the step of coupling and fixing the plurality of knife bodies 31 to the base 10 (S3) and the step of machining the tip of the knife body 31 to establish a blade (S4); including To be manufactured.

In the base processing step (S1), the base material does not need heat treatment, and precisely processes the insertion groove 11 to an appropriate depth in such a manner that the cutting knife 30 is fitted to the polished material by using an end mill or the like (S1). . At this time, the hole 15 for the guide punch is also processed.

The blade body processing step (S2) of the cutting knife is precision processing take out the heat-treated cutting knife material to a predetermined shape using a wire cutting, etc. after the polishing process.

Subsequently, in step S3 of fixing the knife body 31 to the base 10, the knife body is integrally inserted into the insertion groove 11 of the base.

On the other hand, the step of setting up the cutting knife blade (S4) may be made before coupling and fixing the knife body 31 to the base 10.

Look at the action of the cutting mold (1) capable of partial replacement of the cutting knife according to the present invention having such a configuration.

The present invention is a plurality of cutting knife 30 is processed separately and is fixed to the base 10 is coupled to the insertion groove blocked, the cutting knife is firmly fixed to the workpiece even if the pressure of the upper mold is repeated, no matter how Machining precision is maintained and partial replacement is possible if some of the plurality of cutting knives are damaged.

That is, since the cutting knife 30 is formed separately from the base 10 and can be detached, only partial damage of the plurality of cutting knives can be replaced, which is extremely easy to repair, significantly reducing time loss and reducing maintenance costs. do.

In addition, it can be used interchangeably with existing products of mold and wood mold.

As such, the present invention, as shown in the installation state diagram in Figure 9, the pressing surface of the upper mold (4) is formed so that even when the cutting mold is replaced with another model, the upper mold is used as it is. Therefore, the mold is not a male and female suit concept as in the prior art, and the upper mold 4 is always fixed to the upper die 3 of the press apparatus, and the cutting mold 1 is arranged at the bottom according to the cutting shape of the workpiece 7. ) Is replaced. In FIG. 9, reference numeral 2 denotes a lower die, and 5 denotes a pressing means.

And by attaching a nominal 50 to the side of each cutting mold (see Fig. 8) to align the cooking selection is easy and the upper mold is not accompanied separately, significantly reducing the volume of the mold and very easy to store and manage.

It will be appreciated by those skilled in the art that the cutting mold 1 may be installed by being replaced by an upper mold installed downward in the upper portion of the press apparatus.

The present invention is not limited to the above-described embodiments and drawings since various substitutions, modifications, and changes are possible to those skilled in the art without departing from the technical spirit of the present invention. .

As described in detail above, the cutting mold capable of partial replacement of the cutting knife according to the present invention is a cutting knife is processed separately and fixedly coupled to the blocking groove of the lower portion formed on the base to maintain the workpiece processing precision, a plurality of cutting If some of the knives are damaged, they can be replaced partially, reducing the cost of follow-up and maintenance.

In addition, it can be used interchangeably with existing products, and even when the cutting mold is replaced with another model, the upper mold does not need to be replaced, which significantly reduces the manufacturing cost and reduces the volume of the mold, compared to the prior art, which had to have both male and female suits. There is an excellent advantage that it is easy to store and manage.

Claims (4)

In the cutting mold which is installed in the lower die of the press and provided with a plurality of cutting knives in the base to cut the workpiece by pressing the upper mold, Insertion grooves 11 for clamping the knife body 31 of the cutting knife 30 to the base 10 is formed concave to a predetermined depth, Cutting molds capable of partial replacement of the cutting knife, characterized in that the cutting knife 30 is fixed to the insertion groove 11 of the base. The method of claim 1, The cutting knife 30 is a cutting mold capable of partial replacement of the cutting knife, characterized in that the height (h1) (h2) of the blade 33, which is the front end of the knife body is formed differently. The method of claim 1, The knife body 31 is formed in the inner circumferential surface of the stepped jaw 32 coupled to the insertion groove 11 of the base, The base 10 is a cutting mold capable of partial replacement of the cutting knife, characterized in that the chip discharge hole 13 connected in a straight line with the inner peripheral surface 35 of the cutting knife 30 is formed through. The method of claim 3, wherein The chip discharge hole 13 is a cutting mold capable of partial replacement of the cutting knife, characterized in that the expansion end (13a) is formed to increase the internal space below.

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