KR20090079141A - Punch device - Google Patents

Abstract

A punching machine is provided to confirm a punching location of an object which is to be perforated visually, and to place the object which is to be perforated in an opened state of an upper part by combining a punching part and a base part. A punching machine includes a lower base(100), a jig(110), and a punching unit(200). The lower base supplies a reference surface in which an object which is to be perforated is put. The jig is installed at the lower base, and forms a pattern hole(112). The punching unit includes a punch block(220) punching the object and elevating up and down through the pattern hole of the jig.

Description

Punching machine {Punch device}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punching machine, and more particularly, to a punching machine having a means for guiding corner right angles of a punched object so as to drill various patterns by simultaneously guiding the corner right angles of a punched object.

The present invention also relates to a punching machine which hinge-couples the base portion with respect to the punching portion, so that the position of the object to be drilled can be set in an open state.

In general, the punching machine includes a jig portion in which a pattern hole of a predetermined shape is formed, and a punching member sliding to penetrate the pattern hole, and the predetermined punching object such as paper is formed by a sharp punch blade provided in the punching member. The parts will be drilled in various patterns.

A typical punching machine with such a function is shown in FIG. Referring to the drawings, the punching machine punches a punched object by sliding through a jig 1 having a pattern hole, a base 2 supporting the jig 1, and a pattern hole of the jig 1. A punching member 3 and a pressing plate 4 for pressing the punching member 3.

Here, the jig 1 includes a guide plate 5 of the upper portion formed with a guide hole and a punching plate 6 of the lower portion formed with a pattern hole, which are spaced apart from each other by a predetermined gap to face each other. It is connected.

This structural characteristic of the jig is obtained because the guide hole and the pattern hole should be aligned exactly when the punching object 3 is inserted into the gap by the punching member 3. As is known, the punch edge of the punching member must be aligned with the jig with high precision. To this end, the guide plate 5 and the punching plate 6 are integrally manufactured by an injection mold, and then the jig is completed by cutting the gap portion into which the object to be drilled is inserted. The jig employed in most conventional punching machines having the manufacturing process as described above has a form in which the guide plate and the punching plate are interconnected at one end.

However, in the jig of the structure in which the guide plate and the punching plate are interconnected as described above, when the perforated object such as paper is inserted into the gap, the insertion depth of the perforated object is limited by the connecting portion, so that the pattern is formed near the outer edge of the perforated object. Although it can be punched, there is a limit in that the pattern cannot be punched in the center.

Furthermore, in the conventional punching machine, there is a disadvantage in that it is difficult for the user to visually determine the setting position of the punched object when the punched object is inserted into the jig.

In addition, since the gap of the jig is specified, the thickness of the object to be perforated is also allowed only within a range corresponding to the gap of the jig. Therefore, there is a problem that a rather thick sheet member such as corrugated paper or art paper can not be perforated in addition to paper.

In order to solve this problem, the punching machine shown in FIG. 2 proposes a structure in which the guide plate and the punching plate of the jig are separated from each other.

That is, in the illustrated punching machine, the guide plate 13 having the guide hole 12 in which the punching member 11 slides is provided in the upper punching part 14, and has the same pattern as the guide hole 12. The lower punching plate 16 on which the holes 15 are formed is mounted to the base portion 17.

A plurality of magnets 18 and 19 are provided on the lower surface of the punching portion 14 and the upper surface of the base portion 17, and the punching portion 14 is attached to the upper surface of the base portion 17 by their mutual attraction. Can be.

Since the punching machine having the above structure is separated from the upper punching portion 14 and the lower base portion 17, there is an advantage in that the pattern can be punched in a desired portion up to the center as well as the edge of the object to be punched. However, since the punching portion 14 and the base portion 17 are simply attached by a magnet, a considerably larger alignment error occurs than the above-described integrated jig, which causes the punching operation to be unsatisfactory and the punched object is clear and accurate. There is a limit to forming a pattern.

In addition, the reference markings 20 corresponding to at least a portion of the pattern hole 15 to be punched are formed at various angles on the upper surface of the base 17 of the punching machine shown in FIG. 2. Accordingly, the user can obtain a pattern of a circular or polygonal shape by punching the object to be punched and then aligning the punched pattern with the reference marking 20 and repeating subsequent punching operations.

By the way, the conventional punching method is configured to complete the pattern while rotating the object to be punched around a single center point, for example, one of the center points indicated by reference numeral 21 in FIG. 2. This punching method does not allow the flexibility to produce various patterns by limiting the center point to one. That is, the punching machine shown in Figure 2 is configured to complete the pattern only by a single motion of 'one-way rotation', accordingly the reference marking 20 for guiding the perforated object is also bound to be circular.

On the other hand, most of the perforations have a pair of sides perpendicular to each other (hereinafter referred to as 'pair of right angles'), and if the pattern can be completed by guiding such a pair of sides, the size Most punched objects that are not standardized can be punched.

The present invention was devised in view of the above problems, and an object of the present invention is to provide a punching machine configured to perforate various patterns by guiding a pair of right angled edges provided in the object to be drilled.

Still another object of the present invention is to provide a punching machine configured to allow the user to visually check the punching position of the punched object by engaging the punching unit and the base unit so that the punched object can be placed in a completely open state.

Still another object of the present invention is to provide a punching machine configured to punch not only paper but also punched objects having various thicknesses such as cardboard or art paper.

Still another object of the present invention is to provide a punching machine configured not to limit the insertion depth of a punched object while minimizing the alignment error of the punching member and the punching plate.

In order to achieve the above object, a punching machine according to a preferred embodiment of the present invention, the lower base for providing a reference surface on which the perforated object is placed; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig, wherein the punching unit is hinged to one end of the lower base to be rotatable.

Preferably, the end of the lower base is provided with a hinge coupling portion formed with a slot, the punching unit is provided with a hinge protrusion inserted into the slot.

More preferably, the hinge protrusion is configured such that movement in the front-rear direction in the slot is restricted and movable only in the vertical direction.

The punching machine of the present invention, the punching unit further comprises a spacer member positioned between the pair of hinge couplings to regulate the lateral movement of the punching unit.

Preferably, a recess is formed in at least one of the punching unit and the lower base so that the object to be drilled is dried.

According to another aspect of the invention, the lower base for providing a reference surface on which the object to be drilled; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching the punched object while moving up and down through the pattern hole of the jig, wherein the lower base includes guide means for simultaneously guiding a pair of right angled sides of the punched object. Puncher is provided.

Preferably, the guide means is configured to guide a pair of right angled sides of the object to be punctured each time the object to be rotated is rotated at 90 ° intervals.

More preferably, the guide means includes a plurality of guide protrusions or a plurality of guide lines formed between the guide protrusions.

Here, the guide line may be composed of a vertical guide line, a horizontal guide line, and an inclined guide line.

According to another embodiment of the present invention, the guide means is configured to guide a pair of right angled sides of the object to be punched each time the object to be rotated by 180 ° intervals.

According to another aspect of the invention, the lower base for providing a reference surface on which the object to be drilled; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching the punched object while moving up and down through the pattern hole of the jig, wherein the reference mark having the same pattern as the pattern hole formed in the jig is 90 ° on the upper surface of the lower base. A punching machine is provided that is printed in a rotated state.

According to another aspect of the invention, the lower base for providing a reference surface on which the object to be drilled; A jig installed in the lower base and having a pattern hole formed therein; A punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig, wherein the jig is embossed with the same pattern as the pattern hole in a 180 ° rotationally symmetrical state. Is provided.

The punching machine of the present invention can punch a desired pattern in various ways because it does not take a punching method by a single rotation center point as in the prior art but guides a pair of right angled sides of the object to be punched.

In addition, the punching machine of the present invention is hinged with the punching unit and the base unit can be positioned in the punched object in the state that the upper part is fully open, so that the user can visually easily identify and set the punched object.

The punching machine of the present invention is adjustable in a predetermined range according to the vertical direction of the punching portion and the base portion can be punched for a punched object having a variety of thickness.

Furthermore, the punching machine of the present invention does not limit the insertion depth of the punched object while minimizing the alignment error of the punching member and the punching plate.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms or words used in this specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly introduce the concept of terms in order to best explain their invention. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

3 to 5 is a perspective view and an exploded perspective view of the configuration of the punching machine according to a preferred embodiment of the present invention. The punching machine according to the present invention can perforate a desired pattern for a relatively thick object (hereinafter referred to as a 'perforated object'), such as paper as well as corrugated paper and art paper.

Referring to the drawings, the punching machine of the present invention and the lower base 100 to provide a reference surface on which the object to be punched, and the punching unit 200 for punching the punched object while one end is rotatably connected to the lower base 100 It includes.

The upper surface of the lower base 100 is formed so that the upper surface is flat to provide a reference surface so that the perforated object is placed, the mounting groove 102 is formed on the upper surface.

The mounting groove 102 is coupled to the jig 110, the pattern hole 112 of the predetermined pattern is formed in the vertical direction. More preferably, the size of the seating groove 102 is set slightly larger than the size of the jig 110, so that the jig 110 flows by a minute gap in the lateral direction while seated in the seating groove 102. Configured to do so. This is to allow the position adjustment of the jig 110 so that the punch blade can penetrate the pattern hole 112 smoothly when punching the sheet material as described below.

The punching unit 200 includes an upper body 210 hinged to the lower base 100, and a punch block 220 is installed on the upper body 210. In addition, an opening 212 is formed in the upper body 210.

The punch block 220 punches sheet material while moving up and down through the pattern hole 112 formed in the jig 110. A punch blade 222 having a shape corresponding to the pattern hole 112 is formed on a lower surface of the punch block 220, and the punch blade 222 is formed through the opening 212 of the upper body 210. It is inserted into the pattern hole 112 of the jig 110 while lifting up.

The punch block 220 is configured to be elastically biased upward. To this end, a plurality of elastic members 230 such as springs are interposed between the punch block 220 and the upper body 210 to elastically bias the punch block 220 upward.

A plurality of guides 214 are formed in the upper body 210 in the vertical direction to guide the vertical movement of the punch block 220. The guide 214 is inserted into the guide hole 224 formed in the punch block 220, preferably, the guide 214 is formed in a cylindrical shape to guide the lifting movement of the punch block 220 without shaking. It is composed.

The elastic member 230 is installed to surround the guide 214, the elastic member 230 is preferably used to use a coil spring wound in a spiral cone, in this case the height is significantly reduced when the spring is pressed down It can be very useful for punching.

However, the above guide method is not limited by the present embodiment, and in addition, it should be understood that various methods may be applied to guide the punch block 220 to move up and down.

A pressing member 240 is provided at an upper portion of the punch block 220, and the pressing member 240 is coupled to the upper body 210 by a fixing bracket 250 having an opening formed at a center thereof. In detail, the flange 242 is formed on the outer circumferential surface of the pressing member 240, and the flange 242 is formed on the upper inner circumferential surface of the fixing bracket 250 when the pressing member 240 is fitted into the opening of the fixing bracket 250. Detachment is prevented by being caught by the formed step 252. In this state, the fixing bracket 250 may be fixed to the upper body 210 by, for example, a screwing method. However, such a coupling method is not limited by the present invention.

Although not shown in the drawings, as another alternative, the lower base 100 may further include a guide plate on which guide glyph holes corresponding to the pattern holes 112 are formed.

According to the present invention, the punching unit 200 may employ any conventional configuration as long as the punch block is lifted up and down to punch the sheet material placed between the upper body 210 and the lower base 100. It should be understood that. This structure is intended to include the construction of a punching machine previously filed or registered by the applicant.

According to the present invention, one end of the punching unit 200 is hinged to the lower base 100, it is possible to freely rotate around the coupling portion. That is, a hinge coupling part 120 having a slot 122 is provided at an end of the lower base 100, and a hinge protrusion 216 inserted into the slot 122 is provided at an end of the upper body 210. . Therefore, the hinge protrusion 216 is coupled to the slot 122 so that the upper body 210 can rotate with respect to the lower base 100.

6, the width of the slot 122 is substantially the same as the diameter of the hinge protrusion 216. Therefore, the hinge protrusion 216 is restricted to move in the front-rear direction as shown by arrow A of FIG. 6 in the slot 122, and can be moved only in the vertical direction. Accordingly, the upper body 210 also does not move in the front-rear direction with respect to the lower base 100 but moves only in the vertical direction.

In addition, as shown in FIG. 5, a spacer member 218 is formed on the upper body 210, which is located between the pair of hinge coupling parts 120. Since the length of the spacer member 218 is substantially the same as the distance between the pair of hinge coupling portion 120, the upper body 210 is thus moved in the direction of arrow B in FIG. Regulated.

As a result, the hinge protrusion 216 (ie, the upper body 210) can only move in the slot 122 (ie with respect to the lower base 100) in the vertical direction. Since the upper body 210 is movable only in the vertical direction with respect to the lower base 100, the distance between the upper body 210 and the lower base 100 may be adjusted according to the thickness of the object to be drilled. That is, when a relatively thick thickness of the drilling object is interposed between the upper body 210 and the lower base 100, as shown in FIG. 6, the hinge protrusion 216 has a slot 122 corresponding to the thickness of the drilling object. Move up within. At this time, the upper body 210 only moves in the vertical direction with respect to the lower body 210, the movement in the horizontal direction is restricted, so the alignment state required for punching can be maintained as it is.

As described above, since the upper body 210 is hinged to the lower base 100, the upper body 210 can be rotated when the object to be drilled is placed, and the upper body 210 can be fully opened. Therefore, the operator can secure the field of vision and can easily set the punching position.

Then, after the perforated object is placed on the lower base 100, the upper body 210 is rotated again to return to the original position, and then the hinge protrusion 216 automatically moves in the slot 122 according to the paper thickness. Caught.

In addition, according to the present invention, a portion of the upper body 210 is curved to have an inner concave portion 219. The recess 219 is preferably formed near the rear end of the upper body 210, that is, the upper body 210 and the lower base 100 are hinged.

When the concave portion 219 is formed, it is easy to punch the central portion instead of the edge of the object to be drilled. That is, without the need to cut or fold the paper to punch the central portion of the object to be punched, punching is possible without damaging or creasing the paper by allowing the end of the object to be naturally dried in the recess 219.

More preferably, as shown in FIG. 6, another recess 104 corresponding to the recess 219 of the upper body 210 may be formed in the lower base 100. The recesses 219 and 104 should be formed to have a curvature along the entry direction of the object to be drilled.

Referring to Figure 7, the punching machine according to a preferred embodiment of the present invention is provided with a guide means for guiding the object to be punched. The guide means includes a plurality of guide protrusions 130a to 130h formed to contact the pair of right angled sides 301 and 302 of the perforated object. Preferably, guide lines 140a to 140l may be further formed between the guide protrusions 130a to 130h to guide the punched object more easily. The guide lines 140a to 140l may be printed as lines or may be formed in a three-dimensional shape such as a protrusion or a groove. The guide protrusions 130a to 130h may also be formed by marking printing.

More preferably, the guide line may be composed of vertical guide lines 140a to 140d, horizontal guide lines 140e to 140h, and inclined guide lines 140i to 140l.

According to the present invention, the guide means contacts and guides the pair of right angled sides 301 and 302 in the object to be drilled (300 in FIG. 8). According to the present invention, a variety of patterns by punching while rotating the pair of right angled sides 301, 302 in the object to be aligned with the guide protrusions 130a to 130h or the guide lines 140a to 140l in various ways. Can be drilled.

8 to 11 illustrate a first example of punching a pattern by guiding a pair of right angled sides 301 and 302 by a guide means. According to the present exemplary embodiment, the guide protrusions 130a to 130h each have a pair of right angled sides 301 and 302 in the punched object 300 each time the punched object 300 is rotated 90 ° in the clockwise direction. It is configured to guide. This also applies to the case where the object 300 is rotated 180 degrees.

Referring to FIG. 8, one side 301 of the object to be drilled 300 is supported in contact with the guide protrusion 130a, and the other side 302 perpendicular to the side 301 is adjacent to the guide protrusion 130. Guided in contact with 130d). More preferably, the right angled sides 301 and 302 may be guided by guide lines 140b and 140g, respectively. In this state, punching is performed as shown in FIG.

After the punching, the punched object 300 is rotated 90 ° in the clockwise direction, and as shown in FIG. 9, one side 301 of the pair of right angled edges is formed on the guide protrusion 130g and the guide line 140g. The other side 302 is aligned with the guide protrusion 130c and the guide line 140d.

More preferably, in this state, the pattern hole 112 formed in the jig 110 may be configured to be symmetrical with the previously punched pattern. Then, the pressing member 240 is pressed to perform the second punching (black display portion).

Subsequently, the object 300 is rotated 90 degrees clockwise again, and as shown in FIG. 10, one side 301 of the right angled side is guided by the guide protrusion 130a or 130b and the guide line 140e. The other side 302 is aligned to be guided by the guide protrusion 130c or 130d and the guide line 140d.

Even in this state, the pattern hole 112 formed in the jig 110 and the pattern immediately perforated are symmetric with each other. Then, as described above, the pressing member 240 is pressed to perform the third punching (black display portion).

After punching, when the object 300 is rotated 90 degrees clockwise again, the state of FIG. 11 is obtained. At this time, one side 301 of the object to be drilled 300 is aligned with the guide protrusion 130f and the guide line 140b, and the other side 302 is connected to the guide protrusion 130b and the guide line 140e. Aligned, the pattern hole 112 of the jig 110 and the immediately punched pattern is symmetric with each other.

In this state, the punching pattern as shown in Fig. 11 can be obtained by pressing the pressing member 240 to perform the fourth punching (black display portion).

A punching example according to another preferred embodiment of the present invention is shown in FIGS. 12-15. In the present embodiment, the guide protrusions 130a to 130h each have a pair of right angled sides 301 and 302 in the punched object 300 each time the punched object 300 is rotated by 90 ° in the counterclockwise direction. It is configured to guide. In addition, according to the present embodiment, the perforated object 300 may be aligned not only by the guide protrusion and the guide line but also by the reference marking.

As shown in FIG. 12, one side 301 of the right angled side of the object 300 is guided by the guide protrusion 130h and the guide line 140f, and the other side 302 is the guide protrusion 130e. And guide line 140c.

After punching in this state, the object 300 is rotated 90 ° counterclockwise as shown in FIG. 13, so that one side 301 is guided by the guide protrusion 130b and the guide line 140c. The other side 302 is guided by the guide protrusion 130f and the guide line 140h.

In this case, a reference marking (150 of FIG. 7) having the same pattern as the pattern hole 112 formed in the jig 110 is printed on the upper surface of the lower base 100. The reference marking 150 is rotated at an angle of 90 ° with respect to the pattern of the pattern hole 112. As described above, when the puncture object 300 is rotated 90 ° in the counterclockwise direction, the previously punctured pattern is It is configured to coincide with the reference marking 150.

Accordingly, as shown in FIGS. 13 to 15, when the punching object 300 is rotated at an interval of 90 ° in the counterclockwise direction so that the immediately punctured pattern coincides with the reference marking 150, a symmetrical puncture pattern is formed. You can get it.

Although not shown in the figure, a desired pattern may be obtained by punching while rotating the perforated object 300 at intervals of 90 ° using only the reference marking 150. This is because, as described above, the reference marking 150 is printed while being rotated by 90 ° clockwise or counterclockwise with respect to the pattern of the pattern hole 112.

In this case, the user can punch the pattern without the aid of the guide means by punching once at any point in the sheet material and rotating it by 90 ° to align the punched pattern with the reference marking 150 and subsequent punching. Will be.

16 and 17 illustrate a process of punching while guiding the perforated object 300 by the inclined guide lines 140i to 140l. The inclined guide lines 140i to 140l of this embodiment are configured to guide the corner right sides 301 and 302 each time the object 300 is rotated at 90 ° intervals.

As illustrated in FIG. 16, one side 301 of the object to be drilled 300 is guided by the guide protrusion 130a and the guide line 140i, and the other side 302 is guided by the guide protrusion 130f and the guide. Guided by line 140l.

After punching in this state, the punched object 300 is rotated by 180 ° to be in the state shown in FIG. 17. That is, one side 301 of the object to be drilled 300 is guided by the guide protrusion 130e and the guide line 140k, while the other side 302 is guided by the guide protrusion 130b and the guide line 140j. Be guided.

Preferably, as shown in FIG. 18, the jig 110 has a pattern hole 112 formed therein, and the same pattern as the pattern hole 112 is embossed 113 in a 180 ° rotationally symmetrical state. This embossed 113 may be convexly shaped by mold design when molding the jig 110.

Therefore, the user can be easily aligned by rotating the punching object 300 by 180 ° so that the already perforated pattern matches the relief 113. Naturally, the already perforated pattern and the pattern hole 112 of the jig 110 will be symmetric with each other. Subsequently, a second punching is performed to obtain a complete puncture pattern.

Although the present specification has described only a limited embodiment of the present invention, the present invention is not limited thereto, and various patterns may be formed while rotating or inverting the perforated object to guide a pair of right angled sides of the perforated object by a plurality of guide protrusions and guide lines. It can be drilled.

1 is an exploded perspective view showing the configuration of a punching machine according to the prior art.

Figure 2 is an exploded perspective view showing the configuration of a punching machine according to another prior art.

3 is a perspective view showing the configuration of a punching machine according to a preferred embodiment of the present invention.

Figure 4 is an exploded perspective view showing the configuration of a punching machine according to a preferred embodiment of the present invention.

5 is a perspective view showing the configuration of a punching machine according to a preferred embodiment of the present invention.

6 is a side view showing a state of use of the punching machine according to a preferred embodiment of the present invention.

7 is a plan view showing the configuration of the lower base of the punching machine according to a preferred embodiment of the present invention.

8 to 17 is a plan view showing an example of the guide method of the punching machine according to a preferred embodiment of the present invention.

18 is a plan view showing a configuration of a jig of a punching machine according to another preferred embodiment of the present invention.

Claims (14)

A lower base providing a reference surface on which the object to be drilled is placed; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig. The punching unit is a punching machine, characterized in that one end rotatably hinged to the lower base. The method of claim 1, The end of the lower base is provided with a hinge coupling portion formed with a slot, And a punching protrusion inserted into the slot of the punching unit. The method of claim 2, The hinge protrusion is a punching machine, characterized in that the movement is controlled in the front and rear direction in the slot and only move in the vertical direction. The method of claim 3, The punching unit further comprises a spacer member positioned between the pair of hinge coupling portions to regulate lateral movement of the punching unit. The method of claim 1, Punching machine, characterized in that the recessed portion is formed inside the at least one of the punching unit and the lower base to be perforated to dry. A lower base providing a reference surface on which the object to be drilled is placed; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig. Punching machine, characterized in that the lower base is provided with a guide means for simultaneously guiding a pair of right angles of the object to be punched. The method of claim 6, And the guide means is configured to guide a pair of right angled sides of the object to be punched each time the object to be rotated is spaced at 90 ° intervals. The method of claim 7, wherein And the guide means comprises a plurality of guide protrusions. The method of claim 8, And the guide means further comprises a plurality of guide lines formed between the guide protrusions. The method of claim 9, And the guide line comprises a vertical guide line, a horizontal guide line, and an inclined guide line. The method of claim 6, And the guide means is configured to guide a pair of right angled sides of the object to be punched each time the object to be rotated is rotated at 180 ° intervals. The method of claim 6, The jig is punched, characterized in that the same pattern as the pattern hole is embossed in a 180 ° rotationally symmetrical state. A lower base providing a reference surface on which the object to be drilled is placed; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig. Punching machine, characterized in that printed on the upper surface of the lower base, the reference marking of the same pattern as the pattern hole formed in the jig is rotated by 90 °. A lower base providing a reference surface on which the object to be drilled is placed; A jig installed in the lower base and having a pattern hole formed therein; And a punching unit having a punch block for punching a punched object while moving up and down through the pattern hole of the jig. The jig is punched, characterized in that the same pattern as the pattern hole is embossed in a 180 ° rotationally symmetrical state.

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