KR20090128695A - Apparatus for enlarging cutting gap of metal plate with following cutting blade and cutting equipment adopting the same - Google Patents

Abstract

PURPOSE: A spacing device for a cutting gap on a metal plate, with a following cutting blade and a cutting device adopting the same are provided to offer uniform force regardless of the location of the cutout gap even when a large metal plate is cut, thereby minimizing the damage to a cut surface and a cutting member due to excessive force. CONSTITUTION: A spacing device for a cutting gap on a metal plate, with a following cutting blade is applied to a cutting device with a saw blade. The saw blade cuts the metal plate provided on a feeding table. The spacing device follows the saw blade along the same trace as the saw blade. The spacing device is inserted into the cutting gap formed on the metal plate cut by the saw blade and spaces the cutting gap. A wedge disk(210) is rotatably installed in a support bracket(204) which is coupled to a transfer block. A protruded edge(214) minimizes the contact area between cut surfaces and the wedge disk.

Description

Apparatus for enlarging cutting gap of metal plate with following cutting blade and cutting equipment adopting the same}

The present invention relates to a cutting groove spacer of a metal sheet, and more particularly, to a cutting groove spacer of a metal sheet to expand the spacing of the cutting groove while following the saw blade in the cutter for cutting the metal sheet.

The invention also relates to a metal sheet cutting device employing such a cutaway spacer.

In recent years, the apparatus which cut | disconnects a metal plate material using the circular saw which rotates at high speed is becoming popular. This cutting device is a circular saw (1) as shown in Figure 1 to cut across the metal plate 100 supported by the fixing means, in the process of the circular saw 1 passes through the cut in the groove ( 3) is formed.

A metal plate cut using a circular saw is a steel plate or aluminum alloy including carbon steel, and has various physical properties depending on its component composition. As a result of these physical properties, both cut surfaces (100a, 100b) of the cut metal plate 100, as shown in Figure 2, tends to be in close contact with each other about the cutting groove (3).

When the cutting groove 3 is narrowed in this way, the circular saw 1 rotating therebetween increases frictional resistance, thereby facilitating damage to the circular saw as well as cutting.

Furthermore, the cut surface (100a) (100b) of the cut metal plate 100 is made to hit the back blade of the circular saw 1 does not form a smooth cut surface may be generated (burr) or scratch.

The present applicant has previously proposed an invention for separating the incision grooves using a wedge and a cylinder in Patent Registration No. 533809 'Incision groove spacer device for metal plate', as shown in FIG. 3.

The patent invention is to insert the first transfer means 5 for moving the wedge 4 on the cutting path line of the cutting groove 3 and the wedge transferred on the cutting path line into the cutting groove 3. And a second conveying means (6) for conveying in order.

The patent invention, as the wedge 4 is inserted into the incision groove 3 by the second transfer means 6, not only brings about a spacing effect, but also retracts the first transfer means 5 to pull the wedge 4. As a result, the incision groove can be further spaced apart.

However, in the conventional spacing device, the wedge is pressurized and spaced apart from only the inlet groove inlet formed in the metal plate, so that there is a limit to providing sufficient separation force to the end of the incision groove.

In view of this, when increasing the pressing force of the wedge located at the inlet of the inlet groove to provide sufficient separation force to the end of the incision groove, excessive force is applied to the incision surface, causing damage to the surface or bending of the cutting metal member. May cause problems.

The present invention was made in view of the above problems, by following the saw blade in real time spaced incision grooves according to the cutting plate of the metal plate which can provide a uniform separation regardless of the size and cutting length of the metal plate. It is an object to provide a spacer device.

In order to achieve the above object, the cutting groove spacing device of the metal plate according to the preferred embodiment of the present invention, the cutting groove spacing of the metal plate employed in the cutting device having a saw blade for cutting the metal plate supplied on the supply table. In the apparatus, it is configured to be spaced apart between the cut grooves formed in the metal plate cut by the saw blade while following the saw blade with the same trajectory as the saw blade.

Preferably, the cutting groove spacing device of the present invention includes a disc-shaped wedge disc which is rotatably installed and a part of which is inserted between the cutting grooves of the metal plate.

More preferably, the thickness of the wedge disk is configured to be equal to or thicker than the thickness of the saw blade.

As a further alternative, a circumferential edge is formed at the circumference of the wedge disc, and the thickness T of the rim is configured to be equal to or thicker than the thickness of the saw blade.

Preferably, the saw blade is installed on the support member reciprocating along the guide frame installed across the top of the feed table, the wedge disk is installed on the transfer block reciprocating along the guide frame.

More preferably, the guide screw is horizontally installed on the guide frame, and the support member and the transfer block move together by the rotation of the transfer screw.

According to another embodiment of the present invention, the saw blade is installed on a support member reciprocating along a guide frame installed across the top of the feed table, and the wedge disk is integrally connected to the support member.

According to another embodiment of the present invention, the wedge disk is installed on the opposite side of the saw blade on the basis of the cut surface corresponding to the upper surface of the feed table.

Preferably the incision groove spacer of the present invention further comprises a drive means for rotating the wedge disk.

According to another aspect of the invention the supply table is supplied with a metal sheet; A saw blade for cutting across the supplied metal sheet; And it is provided with a cutting groove spacer of the metal plate of any one of the preceding claims.

The cutting groove spacer of the metal plate according to the present invention can effectively separate the cutting groove even without applying excessive force because the wedge separates the cutting groove in real time while following the saw blade.

Therefore, even when cutting a large metal plate, it is possible to provide a uniform force irrespective of the position of the cutting groove, thereby minimizing damage to the cut surface and the cutting member caused by applying excessive force as in the prior art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. 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.

Figure 4 schematically shows a metal sheet cutting apparatus employing a cutting groove spacing device 200 of the metal sheet according to a preferred embodiment of the present invention.

The circular saw cutting device includes a circular saw 12 for cutting the metal plate 100 supplied on the supply table 10 while rotating at a high speed, and a driving motor for providing a driving force for rotating the circular saw 12 ( 14).

A guide frame 16 is installed across the top of the feed table 10, and a circular saw 12 is mounted to a cutting unit 18 moving along the guide frame 16.

The cutting unit 18 includes a support member 20 reciprocating along the guide frame 16, and a circular saw 12 formed at a lower end of the support member 20 to protrude.

The guide frame 16 is provided with a transfer screw 22 horizontally, the support member 20 is provided with a bush 24 is screwed with the transfer screw 22. In addition, the support member 20 is provided to be slidable on the guide frame 16.

Therefore, when the transfer screw 22 rotates, the support member 20 reciprocates along the guide frame 16 by the relative screw movement with the bush 24.

In addition, the circular saw cutting device may further include a fixing means 26 for fixing the metal plate 100 is supplied on the supply table (10).

Although not shown in the drawing, the metal plate 100 may be automatically supplied by a separate transfer device, and the metal plate 100 supplied to the cut portion presses the upper surface while the piston rod of the fixing means 26 descends. By this, the position can be fixed.

Although the specification specifically illustrates the configuration of the circular saw cutting device, the technical concept of the present invention is not limited to this configuration. Since the gist of the present invention is not related to the cutting device and is in the cutting groove spacing device employed and used in the cutting device, it should be understood that the cutting groove spacing device of the present invention can be employed in a cutting device having any configuration. .

For example, the cutting unit 18 includes a variety of configurations that can be modified or employed by those of ordinary skill in the art, as long as it has a saw blade that cuts the metal sheet while reciprocating. It is enough.

In addition, although only a cutting device having a circular saw is illustrated herein, the spacer of the present invention can be used in a device for cutting a metal plate using a band saw. Hereinafter, a 'saw blade' will be used as a broad term including a circular saw and a band saw.

The cutting groove spacing device 200 of the metal sheet according to the preferred embodiment of the present invention is provided between the cutting grooves (300 in FIG. 9) formed in the metal sheet 100 by the saw blade 12 while following the saw blade 12. It is inserted to space the incision groove (300).

In the present specification and claims, the term 'following' is defined as moving along a moving trajectory of the saw blade 12. At this time, the progress point of the saw blade and the tracking point of the spacer does not need to be completely coincident, and the tracking may be performed immediately or at predetermined intervals at least immediately after the progress of the saw blade starts.

In addition, the following of the cutting groove spacing device 200 may be mechanically linked with the progress of the saw blade, or may be performed independently. This will be explained through the following embodiments.

The cutting groove separation device 200 of the metal sheet according to the present embodiment is rotatable to the transport block 202 reciprocating along the guide frame 16 and the support bracket 204 coupled to the transport block 202. And wedge disks 210 installed to.

The transfer block 202 is slidably coupled to the guide frame 16 and includes a transfer bush 206 screwed to the transfer screw 22 installed in the longitudinal direction. Accordingly, when the transfer screw 22 rotates, the transfer block 202 may reciprocate along the guide frame 16 by the interaction with the transfer bush 206.

Although the cutting unit 18 and the transfer block 202 move together by the rotation of the transfer screw 22 in the present embodiment, the transfer block 202 of the cutaway spacer is not limited to this configuration. Can be designed to be movable independently. In addition to the conveying screw and the bushing method, a variety of conveying methods such as a hydraulic method, a belt method, a chain method can be applied.

The wedge disc 210 is positioned to travel along the same trajectory as the trajectory of the saw blade 12. Accordingly, the wedge disk 210 may be inserted into the cutout groove 300 formed by cutting the metal sheet.

A more detailed configuration of the wedge disc 210 is shown in FIGS. 5-7. 5 is a view showing only the wedge disk 210 and the support bracket 204, Figures 6 and 7 are a perspective view and a cross-sectional view of the wedge disk 210, respectively.

As shown in the figure, the wedge disk 210 of the present invention has a disc shape, and is installed to be freely rotatable to the support bracket 204 through a central hole 212 formed in the center.

Preferably, a protruding edge 214 may be formed at the circumference of the wedge disk 210, and the protruding edge 214 protrudes thicker than the body thickness of the wedge disk 210 to thereby cut off the surface (see FIG. 1). 100a, see 100b). When the protruding edge 214 is formed, the contact area between the cut surfaces 100a and 100b and the wedge disk 210 is minimized so that the wedge disk 210 is inserted into or removed from the cut groove smoothly. Can be.

The thickness T of the protruding edge 214 is equal to or greater than the thickness of the saw blade 12. Therefore, in the state where the protruding edge 214 is inserted into the incision groove, the saw blade 12 performs a smooth cutting process without friction.

However, according to the present invention, the wedge disc without the protruding edge 214 is also included within the scope of the present invention.

More preferably, the end of the wedge disc 210 (or the wedge disc in the case where the protruding edge is not formed) is formed so that the wedge disc 210 is easily inserted into or detached from the incision groove 300. The circumferential portion of) may be tapered to form an inclined surface 216.

Then, it will be described with respect to the operation of the cutting groove spacing device of the metal plate according to an embodiment of the present invention having the configuration as described above.

The metal plate 100, which is an object to be cut, is supplied onto the supply table 10 of the cutting device, and then the position is fixed by the fixing means 26. As described above, the metal plate 100 may be automatically transferred by a separate transfer device.

When the fixing of the metal plate 100 is completed, the cutting unit 18 is gradually moved along the guide frame 16 by the rotation of the transfer screw 22, and at the same time, the saw blade 12 is applied to the driving force of the driving motor 14. ) Rotates at high speed and starts cutting the metal plate 100.

At this time, the transfer block 202 of the cutting groove spacing device 200 also advances while following the cutting unit 18 by the operation of the transfer screw 22 and the transfer bush 206. Following the cutting groove spacing device 200 may be started simultaneously with the cutting unit 18, or alternatively, the movement may start after a predetermined time after the cutting unit 18 is advanced.

As the saw blade 12 advances a predetermined distance, as shown in FIGS. 8 and 9, as the metal plate 100 is cut, the cutting groove 300 begins to be formed.

As the saw blade 12 cuts the metal sheet 100 as described above, the cut surfaces 100a and 100b of the cut metal sheet tend to be in close contact with each other. The close contact between these incisions can be effectively prevented by the spacer according to the present invention.

Specifically, the wedge disc 210 following the same trajectory as the trajectory of the saw blade 12 is inserted into the cutout groove 300 formed in the metal plate 100, and the protruding edge formed in the wedge disc 210. Since the thickness T (the thickness of the disc body in the case where no protruding edge is not formed) is equal to or thicker than the thickness of the saw blade 12, 214 is spaced apart by pressing the cut surfaces 100a and 100b outward. .

Therefore, the saw blade 12 can smoothly cut the metal plate 100 while minimizing contact with the cut surface.

The degree of insertion of the wedge disc 210 into the incision groove 300 can be adjusted appropriately, the wedge disc 210 of the present invention is made of a circular shape can be sufficiently spaced apart even if not excessively inserted .

As described above, in the state where the wedge disk 210 is inserted into the cutting groove 300, the saw blade 12 continuously moves to cut the metal plate 100, and at the same time, the wedge disk 210 also cuts the saw blade 12. While following the spaced incision groove 300 in real time.

According to the present invention, since the wedge disk 210 is rotatable, when the transport block 202 moves along the guide frame 16, the wedge disk 210 rotates while being clamped between the incision grooves 300 and moves forward. Therefore, the spaced apart state of the cutting groove 300 can be continuously maintained continuously.

Subsequently, when the cutting of the metal plate 100 is completed and the cutting unit is separated, the cutting groove spacer 200 and the saw blade 12 return to their original positions and repeat the subsequent cutting operation.

Although not shown in the figure, the incision groove spacing device may be controlled by the control unit. In this case, the operation time of the cutaway spacing device, the distance to the saw blade, or the like may be configured to be settable according to the working conditions.

10 shows a cutting device employing a cutting groove spacing device 200 'of a metal sheet according to another preferred embodiment of the present invention. Here, the same reference numerals as in the above-described drawings indicate members having the same function.

The cutting groove spacer 200 ′ of the metal plate according to the present embodiment is integrally connected to the cutting unit 18 reciprocating along the guide frame 16.

That is, the transfer block 202 ′ of the cutaway spacer 200 ′ is fixed to the support member 20 of the cutting unit 18, and is transferred together as the cutting unit 18 moves. In this case, since the devices for separately driving the cutaway spacer 200 'are unnecessary, the structure of the device is concise.

In addition, since the operation of the cutaway spacer according to the present embodiment is the same as described above, a detailed description thereof will be omitted.

According to the present invention, the wedge disc of the cutaway spacing device may be located opposite to the saw blade 12 on the basis of the cutting plane coplanar with the top surface of the feed table 10.

As one such embodiment, FIG. 11 illustrates a configuration in which the wedge disk 210 is installed at the upper side and the saw blade 12 is installed at the lower side with respect to the upper surface (cutting surface) of the supply table 10.

The wedge disk 210 is installed in the transfer block 202 reciprocating along the guide frame 16, the saw blade 12 is a separate transfer means (not shown) installed below the supply table 10 It is configured to cut the metal plate 100 while reciprocating by.

Means for conveying the saw blade 12 is irrelevant to the gist of the present invention, and those skilled in the industry may apply a variety of conventional means of transport will not be shown in the drawings a specific configuration.

As another embodiment, the saw blade 12 may be installed on the upper side of the cutting surface while the wedge disk 210 may be installed on the lower side.

As described above, when the saw blade 12 and the wedge disk 210 are installed on opposite sides with respect to the cutting surface, the spacing D between the wedge disk 210 and the saw blade 12 can be further narrowed, so that the cutting groove It can be spaced more effectively.

According to another preferred embodiment of the present invention, a cutaway spacer 200 " is shown in Fig. 12. The same reference numerals as in the above-described drawings indicate the same members.

The cutting groove spacer 200 ″ according to the present embodiment includes driving means for rotating the wedge disk 210. Preferably, the driving means includes a driven gear 220 formed on the side of the wedge disk 210. A rotation motor (not shown) including a drive gear (not shown) connected by the chain belt 222. The rotation motor may be installed at an appropriate position in the transfer block.

Therefore, in the cutting groove spacing device of the present embodiment, the wedge disk 210 is actively rotated by the driving force of the rotating motor to move along the cutting groove 300.

Preferably, since the wedge disk 210 is movable by rotation, it is also possible not to provide a means for transporting the transport block 202 separately.

In addition, the rotational speed of the wedge disk 210 may be appropriately adjusted in consideration of the advancing speed of the saw blade 12.

Although the present invention has been described through limited embodiments and drawings, it should be understood that various modifications may be applied by those skilled in the art at the time of the present application.

Although the present invention will be described in detail with reference to the following drawings, these drawings illustrate preferred embodiments of the present invention, and the technical concept of the present invention is not limited to the drawings and should not be interpreted.

1 is a partial perspective view showing a cutting process of a general metal sheet cutting device.

Figure 2 is a plan view showing a state of the cutting groove in the cutting process of a general metal sheet cutting device.

3 is a view showing an example of a conventional incision groove spacing device.

Figure 4 is a front view showing a schematic configuration of a metal sheet cutting apparatus employing a cutting groove spacing device of a metal sheet according to a preferred embodiment of the present invention.

5 is a view showing the configuration of a cutting groove spacing device of a metal plate according to an embodiment of the present invention.

6 and 7 are a perspective view and a cross-sectional view showing the configuration of the wedge disk of the cutting groove spacing device of the metal plate according to an embodiment of the present invention.

8 and 9 are a side view and a plan view showing the operation of the cutting groove spacing device of the metal plate according to an embodiment of the present invention.

10 is a view showing the configuration of a cutting groove spacing device of a metal sheet according to another preferred embodiment of the present invention.

11 is a view showing the configuration of a cutting groove spacing device of a metal sheet according to another preferred embodiment of the present invention.

12 is a view showing the configuration of a cutting groove spacing device of a metal sheet according to another preferred embodiment of the present invention.

<Description of Major Reference Numbers in Drawings>

10: table 12: circular saw

14: drive motor 16: guide frame

18: cutting unit 20: support member

22: feed screw 24: bush

26: fixing means 200: incision groove spacer

202: transfer block 204: support bracket

206: transfer bush 210: wedge disc

212: center hole 214: protrusion edge

216: slope 300: incision groove

Claims (10)

In the cutout spacer device of the metal sheet employed in the cutting device having a saw blade for cutting the metal sheet supplied on the feed table, The cutting groove spacing device of the metal plate, characterized in that the cutting groove is inserted between the cutting grooves formed in the metal plate is cut by the saw blade while following the saw blade in the same trajectory. The method of claim 1, It is installed so as to be rotatable a metal plate cutting groove spacing device comprising a wedge disk of a disk shape, a part of which is inserted between the cutting groove of the metal plate. The method of claim 2, Wherein the thickness of the wedge disk is equal to or thicker than the thickness of the saw blade. The method of claim 2, The circumferential portion of the wedge disk is formed with a protruding edge, The thickness (T) of the protruding edge is cutout spacer device of the metal sheet, characterized in that the thickness of the saw blade or the same or thicker. The method of claim 2, The saw blade is installed on the support member reciprocating along the guide frame installed across the top of the feed table, Wherein the wedge disk is a metal plate cutting groove separation device, characterized in that installed in the transport block reciprocating along the guide frame. The method of claim 5, The guide frame is horizontally installed on the guide screw, The cutting groove separation device of the metal plate, characterized in that the support member and the transfer block is moved together by the rotation of the transfer screw. The method of claim 2, The saw blade is installed on the support member reciprocating along the guide frame installed across the top of the feed table, Wherein the wedge disk is a metal plate cutting groove separation device, characterized in that integrally connected to the support member. The method of claim 2, The wedge disk is a metal plate cutting groove separation device, characterized in that installed on the opposite side of the saw blade relative to the cutting surface corresponding to the upper surface of the supply table. The method of claim 2, Incision groove separation device of the metal sheet further comprising a drive means for rotating the wedge disk. A supply table to which metal plates are supplied; A saw blade for cutting across the supplied metal sheet; And A metal sheet cutting device comprising: a cutting groove spacer of the metal sheet according to any one of claims 1 to 9.

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