KR101536682B1 - Ceramic cutting apparatus using impact of rotating pounder - Google Patents

Abstract

The present invention relates to a ceramic strike cutting apparatus, and more particularly, to a ceramic strike cutting apparatus having a housing having a circular cross-sectional shape and having a receiving space therein and an exposure opening having a predetermined size toward a lower direction; And a rotating member rotatably coupled to the receiving space and rotating and contacting the surface of the object to be cut so as to strike the object in a predetermined interval along a cutting direction of the object to be cut to form discontinuous joints therein, And a striking cut section for allowing the striking cut section to be split and cut, the striking cut section including: a rotating shaft coupled through the housing; A plurality of support rods extending radially outwardly at predetermined angular intervals around the rotation axis; And a striking member coupled to an end of the plurality of support rods and exposed to the outside through the exposure opening and contacting the surface of the object to be cut when the support rod is rotated, The lower surface of the support rod is formed of a material having elasticity so that the striking member contacts the cutting object and is elastically deformed flexibly when hitting the striking member, Thereby reducing the fatigue and torque damping of the support rods.

Description

CERAMIC CUTTING APPARATUS USING IMPACT OF ROTATING POUNDER

[0001] The present invention relates to a ceramic strike cutting apparatus, and more particularly, to a ceramic strike cutting apparatus for cutting a rotating striking member by applying a blow to an upper surface of a ceramic material to be cut to form a discontinuous joint in the ceramic material, will be.

Ceramic materials are widely used in construction and civil engineering. They are also used as decorative materials. Ceramic materials have inherent strength and hardness, which makes it difficult to cut by a rotary saw blade during cutting, but has the characteristic that a crystal structure or a bond between bonds exists and is broken by an impact.

Conventionally, a cutting apparatus for cutting a ceramic material is a type in which a wheel provided with a cutting tip is rotated and cut. In this case, a smooth cutting surface can be obtained, but the cutting tip has to be frequently replaced according to the wear of the cutting tip, so that the maintenance cost is high. Further, there is a problem in safety because the wheel is broken or the cutting tip is separated during the cutting process. In addition, there was a problem that the cutting time was long.

On the other hand, another example of a cutting apparatus for cutting a conventional ceramic material is disclosed in Japanese Patent Publication No. 4467742 entitled " Household appliance and air conditioner cutting device, home appliance and air conditioner disassembling method ".

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view schematically showing the configuration of a cutting apparatus of Japanese Patent Publication No. 4467742. Fig. As shown in the drawing, the conventional cutting apparatus 10 cuts two or more rotating units 13 and 15, which contact ceramic materials at different depths, while rotating at a high speed.

In the conventional cutting apparatus 10 of this type, the sharp cutting edges of the tool tips 13a and 15a provided at the ends of the rotating units 13 and 15 rotating at ultra-high speed are in line contact with the ceramic material, It causes micro-fracture and cutting. As a result, the cut surface can be smoothly and precisely cut, but a large amount of fine dust is generated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a ceramic strike cutting apparatus capable of cutting a ceramic material into a shape in which a striking member is divided into a split shape without cutting a sharp cutting edge into a predetermined depth.

Accordingly, it is an object of the present invention to provide a ceramic impact cutting apparatus which can shorten the cutting time and minimize the amount of fine dust generated in the cutting process.

It is another object of the present invention to provide a ceramic strike cutting device that imparts directionality to an amount of impact transmitted to a ceramic material during striking, thereby facilitating cutting of the ceramic material.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention by those skilled in the art.

The object of the invention can be achieved by a striking cutting device. The present invention relates to a cutting apparatus for cutting a cutting object in contact with a surface of a cutting object to form a discontinuous joint in a predetermined interval along a cutting direction of the object to be cut, A rotary shaft; A plurality of support rods extending radially outwardly at predetermined angular intervals around the rotation axis; And a striking member coupled to an end of the plurality of support rods and contacting the surface of the object to be cut when the support rod is rotated, And the support rod is made of a material having elasticity so that the striking member elastically deforms when it is in contact with the object to be cut so as to reduce the fatigue of the support rod and the damping of the rotational force The present invention provides a striking cutting apparatus characterized by

Further, the object of the present invention can be achieved by a ceramic strike cutting apparatus. A ceramic impact cutting apparatus of the present invention includes: a housing having a circular cross-sectional shape and having a receiving space therein and having a predetermined size of opening toward the lower direction; And a rotating member rotatably coupled to the receiving space and rotating and contacting the surface of the object to be cut so as to strike the object in a predetermined interval along a cutting direction of the object to be cut to form discontinuous joints therein, And a striking cut section for allowing the striking cut section to be split and cut, the striking cut section including: a rotating shaft coupled through the housing; A plurality of support rods extending radially outwardly at predetermined angular intervals around the rotation axis; And a striking member coupled to an end of the plurality of support rods and exposed to the outside through the exposure opening and contacting the surface of the object to be cut when the support rod rotates, Wherein the support rod is formed of a material having elasticity so that the striking member is elastically deformed by being elastically deformed when hitting the striking object in contact with the object to be cut, Thereby reducing the fatigue and rotational damping of the rod.

According to one embodiment, the striking member may include an outer circumferential surface, a first connecting portion, and a second connecting portion. The inner circumferential surface corresponds to the outer circumferential surface, the first connecting portion connects the outer circumferential surface and the inner circumferential surface, Two connecting portions, and the inner circumferential surface is formed in an arc shape having a radius of curvature smaller than that of the outer circumferential surface.

According to one embodiment, the striking member is formed so that the width of the lower surface contacting the surface of the object to be cut gradually becomes smaller toward the at least one of the opposite side ends from the center.

According to an embodiment of the present invention, there is further provided a driving unit for rotating the rotary shaft, wherein the driving unit supplies compressed air to the upper portion of the housing to rotate the support rod by pneumatic pressure.

According to an embodiment, the driving unit further includes a driving unit for rotating the rotating shaft, and the driving unit transmits the driving force of the driving motor to the rotating shaft to rotate the supporting rod.

According to one embodiment, a gap adjusting member for adjusting the gap between the cut surface of the object to be cut and the striking member is coupled to both sides of the exposure opening, and the length of the gap adjusting member coupled to the housing is adjusted.

The ceramic impact cutting apparatus according to the present invention is not a method in which a sharp blade is drawn into a ceramic material to cut the ceramic cutting material as in the conventional cutting apparatus but the impact force is repeatedly applied along the cutting direction of the ceramic material, Cracks and joints are formed inside the ceramic material due to the impact force of the ceramic material, and these joints are continued to break and cut the ceramic material.

Particularly, in the ceramic impact cutting apparatus according to the present invention, the first connection portion is formed at the rear end of the rotation direction so that the impact member can apply the directionality to the joint, thereby more precise and effective joint is generated.

In addition, since the cutting apparatus according to the related art takes a lot of time for fine cutting, the cutting is performed by blowing, so that the time required for cutting can be shortened, and the fine work dust generated during cutting is hardly generated, Pollution can be reduced.

Fig. 1 is a schematic view schematically showing the operational configuration of a cutting apparatus disclosed in Japanese Patent Publication No. 4467742,
2 is a perspective view showing a configuration of a ceramic impact cutting apparatus according to the present invention,
FIG. 3 is an exploded perspective view of the ceramic impact breaker according to the present invention,
4 is a view showing a front shape, a bottom shape and a side shape of a striking member of a ceramic impact cutting apparatus according to the present invention,
5 and 6 are views illustrating an operation process of the ceramic impact cutting apparatus according to the present invention.
7 is a schematic view showing a configuration of a ceramic impact cutting apparatus according to another embodiment of the present invention,
8 is a schematic view showing a configuration of a ceramic strike cutting apparatus according to another embodiment of the present invention.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

FIG. 2 is a perspective view showing a configuration of a ceramic strike cutting apparatus 100 according to the present invention, and FIG. 3 is an exploded perspective view showing the configuration of the ceramic strike cutting apparatus 100 in an exploded state.

The ceramic strike cutting apparatus 100 according to the present invention utilizes a property of splitting out a cleavage in a material in a direction of impact when a repetitive impact is applied in either direction on the crystal structure of the ceramic material.

To this end, the ceramic impact cutting apparatus 100 according to the present invention includes a housing 110 having a housing space 114 in which a rotating body 153 is accommodated, a housing 110 rotatably installed inside the housing 110, And a striking cutout 150 that strikes the surface of the material and impacts the ceramic material to be cut.

The housing (110) conceals the rotating striking cutter (150) to prevent a safety accident and protects the striking cutter (150). The housing 110 includes a housing main body 111 and a cover 113 for covering the side surface of the housing main body 111. The housing 110 has an exposure opening 115 opened to a predetermined size in a lower region thereof. The impact cutting portion 150 is exposed to the outside through the exposure opening 115 to contact with the ceramic material A and to apply an impact.

The size of the exposed opening 115 can be determined in consideration of the thickness and size of the cut ceramic material A. [ In one example, the exposure opening 115 is designed to have a size such that only one of the plurality of support rods 153a provided at a predetermined angular interval is exposed or more than one is exposed.

The housing 110 includes a housing main body 111 in which a receiving space 114 is formed and a cover 113 covering one side of the housing main body 111. A grip member 120 is coupled to the upper portion of the housing main body 111. The housing 110 is formed in a circular shape in cross section so as not to interfere with the rotation of the impact cutting portion 150. The inner diameter of the housing 110 is formed to be larger than the rotation radius of the support rod 153a and the striking member 155. [

A plurality of fastening holes 119 are formed in the lower portion of the side wall of the housing main body 111, to which the gap adjusting member 140 is coupled. The exposure length at which the impact cutting portion 150 is exposed to the outside through the exposure opening 115 is adjusted according to the vertical height of the fastening hole 119 to which the gap adjusting member 140 is coupled.

The cover 113 covers the side surface of the opened housing main body 111 to conceal the impact cutting portion 150. Thus, it is possible to prevent a safety accident by blocking the contact of the worker's hand with the rotary cut-off portion 150. In addition, it is possible to prevent foreign substances from entering the impact cutting portion 150.

The grip member 120 is coupled to the upper portion of the housing 110 to allow the housing 110 to move along the cut portion of the ceramic material A while being held by a hand. The grip member 120 is provided in a bent shape such that the gripper can comfortably hold the grip member 120.

The driving unit 130 transmits the driving force so that the impact cutting unit 150 rotates. The driving unit 130 transmits the driving force to the rotating shaft 151 so that the rotating shaft 151 rotates. The driving unit 130 transmits the driving force of a driving motor (not shown) to the rotating shaft 151. A driving force is transmitted to the rotating shaft 151 by connecting a driving shaft (not shown) of the driving motor (not shown) directly to the rotating shaft 151 by a joint member (not shown), or by using a transmission member (not shown) such as a timing belt The driving force can be transmitted by coupling the rotating shaft 151 and the driving shaft (not shown).

At this time, the driving unit 130 may be fixedly coupled to the side surface of the housing 110 in the form of a driving box and moved together with the housing 110.

The gap adjusting member 140 is coupled to the front surface of the exposure opening 115 of the housing 110 to adjust the length of the impact cutting portion 150 exposed to the outside. The gap adjusting member 140 is provided on the front surface and the rear surface of the housing 110 so as to be adjusted up and down. That is, the length of the gap adjusting member 140 extending below the exposure opening 115 is adjusted according to the position where the fastening member 143 is coupled to the lower end of the housing 110.

The gap adjusting member 140 adjusts the gap so that the contact area between the striking member 155 and the ceramic material A is always constant. When the striking member 155 is worn through repeated use for a long period of time, the gap adjusting member 140 is coupled up by the worn length so that the contact area is constant.

The impact cutting portion 150 is rotated inside the housing 110 and impacts the cut surface of the ceramic material A so that a joint B is formed inside the joint so that ultimately the ceramic material A is cleaved and cut .

The striking cutter 150 includes a rotating shaft 151, a rotating body 153 coupled to the rotating shaft 151 and rotating, and a striking unit 160 which is coupled to an end of the rotating body 153 and contacts the ceramic material A, Member (155).

The rotating body 153 is fixed to the rotating shaft 151 and rotates together with the rotating shaft 151. A plurality of support rods 153a are provided along the circumferential direction of the rotating body 153 at predetermined angular intervals. At the end of the support rod 153a, a striking member 155 is provided. The rotating body 153 and the support rod 153a are formed of a metal material having durability and rigidity.

4 is a view showing a front shape, a bottom shape and a side shape of the striking member 155, respectively.

As shown in Fig. 4 (a), the striking member 155 is curvedly formed on the lower surface so as to form striking marks of a predetermined length on the surface of the object to be cut when struck.

The striking member 155 includes an outer circumferential surface 155d that is in contact with the ceramic material A from the lower portion of the support rod 153a, an inner circumferential surface 155c formed in a direction facing the outer circumferential surface 155d, an outer circumferential surface 155d, And a first connection part 155a and a second connection part 155b for connecting the first connection part 155c and the second connection part 155b. And the second connection portion 155b is coupled to the lower portion of the support rod 153a.

At this time, the outer circumferential surface 155d and the inner circumferential surface 155c are formed to have different curvatures. That is, the diameter r1 from the imaginary center C of the outer side to the inner circumferential surface 155c is formed to be smaller than the diameter r2 from the same center to the outer circumferential surface 155d. That is, the radius of curvature of the inner peripheral surface 155c is formed smaller than the radius of curvature of the outer peripheral surface 155d.

As a result, the striking member 155 is formed asymmetrically in the up, down, left, and right directions. Such an asymmetric shape imposes an eccentricity in one direction and can increase an instantaneous impact amount.

In addition, the striking member 155 is formed to extend along the rotation direction by a predetermined length like a tail to the first connecting portion 155a of the rear end contacting with the rear end from the front end first contacting the ceramic material A along the rotation direction.

The side surface of the striking member 155 is formed to be convex on both sides with respect to the center as shown in Fig. 4 (b). 4 (c), the lower portion of the striking member 155 is formed to have a gradually narrower width from the central portion toward the first connecting portion 155a (w1> w2) with respect to the rotation direction.

Due to the shape of the striking member 155, the lower surface of the contact surface in contact with the ceramic material A is formed into a hemispherical shape having a gently convex shape, and is in surface contact with the ceramic material A. [ And is impacted to the inside of the ceramic material (A) while being hit. The joint B is formed in the ceramic material A by the impact.

The impact force applied from the striking member 155 is transmitted to the sheet surface of the ceramic material A in the direction of rotation by the centrifugal force of the support rod 153a. Such a directional impact has a directionality at the time of cutting the material, so that the joint is formed more easily and precisely.

Further, since the striking member 155 has the first connecting portion 155a having a length extending to coincide with the rotating direction, the impact of the impact force is transmitted to the ceramic material A in an elliptical shape instead of a concentric circle shape, Increase.

Here, the striking member 155 may be formed of a metal material or a sintered body. The size, thickness and shape of the striking member 155 can be determined in consideration of the thickness d of the ceramic material A to be cut.

That is, in the ceramic impact cutting apparatus 100 according to the present invention, the striking member 155 is inserted into the ceramic material A, unlike the cutting apparatus 10 disclosed in Japanese Patent Publication No. 4467742 shown in Fig. 1 It is contacted with the upper surface of the ceramic material (A), and only the impact is applied by the impact.

The gap adjusting member 140 is coupled to the housing main body 111 to such an extent that the striking member 155 can be in surface contact with the upper surface of the ceramic material A. [

The operation of the ceramic strike cutting device 100 according to the present invention having such a configuration will be described with reference to FIGS. 5 and 6. FIG.

When the ceramic material (A) to be cut is prepared, the operator places the ceramic strike cutting apparatus 100 according to the present invention on the ceramic material (A). When power is applied to the driving unit 130, the rotating shaft 151 rotates.

The rotary member 153 rotates in conjunction with the rotation of the rotary shaft 151 and the striking member 155 of the support rod 153a strikes the upper surface of the ceramic material A through the exposure opening 115. [ The striking member 155 is repeatedly impacted at a predetermined interval along the cutting direction of the ceramic material A. [

As shown in Fig. 5, the striking member 155 impacts the ceramic material A, and a directional crack is formed in the inside of the ceramic material A subjected to the impact. When the plurality of striking members 155 continuously impact the ceramic material A, cracks are formed in the ceramic material A at regular intervals.

As shown in FIG. 6, when the ceramic strike cutter 100 strikes the ceramic material A reversely along the cutting direction in the opposite direction, the joint B due to the crack is formed up and down. When the rotational speed of the rotating body 153 is increased, the neighboring cracks are elongated and the joints are broken in the cutting direction, so that the ceramic material is broken and cut. The cut surface of the ceramic material A thus cut out shows a rugged surface.

7 is a schematic view showing a configuration of a ceramic impact cutting apparatus 100a according to another embodiment of the present invention. The ceramic strike cutting apparatus 100 according to the preferred embodiment of the present invention drives the strike cut portion 150 with a driving force of a drive motor (not shown).

On the other hand, in the ceramic impact cutting apparatus 100a according to another embodiment of the present invention, the impact cutting portion 150a is rotated by the pressure of the compressed air A supplied from the air compressor 160. [

A plurality of rotary blades 157 are disposed around the rotary shaft 151 and a striking member 155a is coupled to an end of the rotary blades 157. The rotary vane 157 is formed in the shape of an air pocket bent along the rotation direction so as to be rotatable by air pressure. As the rotary vane 157 is bent, the area in contact with the air becomes wider and the rotary vane 157 can be smoothly rotated.

When the compressed air is supplied to the bent rotary blades 157, pneumatic pressure acts on the back side of the rotary blades 157 to rotate the rotary blades 157.

At this time, a connection hole 116 through which the compressed air is supplied is formed in the upper portion of the housing 110, and a guide member 117 for adjusting the supply direction of the compressed air A is provided in the connection hole 116. The guide member 117 is supplied to the housing 110 of the compressed air A only in one direction.

In this case, since the air compressor A is connected to the air supply pipe (not shown) as compared with the ceramic impact cutting apparatus 100 of the above-described preferred embodiment, the weight of the driving unit 130 is reduced and the physical fatigue Can be reduced.

8 is a schematic view showing the configuration of the impact cutting portion 150b according to another embodiment of the present invention.

The support rod 153a and the rotary vane 157 are formed of a hard material. As a result, when the support rod 153a rotates and the striking member 155 comes into contact with the ceramic material A, a repulsive force is applied to the support rod 153a as much as the striking and impacting of the ceramic material A. As a result, the amount of wear of the striking member 155 is also increased.

On the other hand, the striking cutter 150b according to another embodiment of the present invention is formed of a material in which the support rod 158 is elastic. It is formed of a material such as a thick leaf spring, and is momentarily deformed when it comes into contact with the ceramic material (A), and the repulsive force can be damped. Therefore, the resistance received from the object to be cut can be reduced. The amount of the impact applied to the ceramic material A by the blowing can be reduced, but the reduction in the rotational force of the support rod 153a can be reduced. In addition, the fatigue of the support rod 153a can be reduced, and the service life of the support rod 153a can be extended.

As described above, the ceramic impact cutting apparatus according to the present invention is not a method in which a sharp blade is drawn into a ceramic material to cut the ceramic cutting material, like the conventional cutting apparatus, And cracks and joints are formed inside the ceramic material due to the impact force by the blow, and these joints are continued to break and cut the ceramic material.

Particularly, in the ceramic impact cutting apparatus according to the present invention, the first connection portion is formed so that the impact member can apply directionality to the joint, thereby more precise and effective joint is generated, thereby enhancing the cutting effect.

In addition, since the cutting apparatus according to the related art takes a lot of time for fine cutting, the cutting is performed by blowing, so that the time required for cutting can be shortened, and the fine work dust generated during cutting is hardly generated, Pollution can be reduced.

It will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. You will know. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

100: ceramic strike cutting device 110: housing
111: housing main body 113: cover
114: receiving space 115: exposure opening
116: connecting hole 117: guide member
118: air inlet 119: fastening hole
120: grip member 130:
140: a gap adjusting member 150:
151: rotating shaft 153: rotating body
153a: Support rod 154: Support plate
155: striking member 155a: first connecting portion
155b: second connection portion 155c: inner peripheral surface
155d: outer circumferential surface 157: rotary blade

Claims (6)

The cutting object is rotated and brought into contact with the surface of the object to be cut so as to strike the object in a predetermined interval along the cutting direction to form discontinuous internal joints,
A rotary shaft;
A plurality of support rods extending radially outwardly at predetermined angular intervals around the rotation axis;
A plurality of support rods that are coupled to end portions of the support rods so as to be in contact with the surface of the object to be cut when the support rod is rotated and apply a blow, Member,
Wherein the striking member has an outer circumferential surface contacting and abutting the object to be cut with respect to a rotation center of the rotary shaft, an inner circumferential surface corresponding to the outer circumferential surface, and a first connecting portion and a second connecting portion connecting the outer circumferential surface and the inner circumferential surface, A second connecting portion is coupled to a lower portion of the support rod, the inner circumferential surface is formed in an arc shape having a radius of curvature smaller than that of the outer circumferential surface,
Wherein the side surface of the striking member is formed to be convex on both sides with respect to the center and the lower portion is gradually narrowed in width from the central portion toward the first connecting portion with respect to the rotating direction.
A housing having a circular cross-sectional shape and having a receiving space therein and having a predetermined size of opening toward the lower direction;
And a rotating member rotatably coupled to the receiving space and rotating and contacting the surface of the object to be cut so as to strike the object in a predetermined interval along a cutting direction of the object to be cut to form discontinuous joints therein, And a striking cut-out portion for cutting and cutting,
The impact cut-
A rotating shaft coupled through the housing;
A plurality of support rods extending radially outwardly at predetermined angular intervals around the rotation axis;
A plurality of support rods connected to ends of the plurality of support rods and exposed to the outside through the exposure openings and contacting the surface of the object to be cut at the time of rotation of the support rod to apply a blow, The striking member having a lower surface formed to be curved,
Wherein the striking member has an outer circumferential surface contacting and abutting the object to be cut with respect to a rotation center of the rotary shaft, an inner circumferential surface corresponding to the outer circumferential surface, and a first connecting portion and a second connecting portion connecting the outer circumferential surface and the inner circumferential surface, A second connecting portion is coupled to a lower portion of the support rod, the inner circumferential surface is formed in an arc shape having a radius of curvature smaller than that of the outer circumferential surface,
Wherein the side surface of the striking member is formed to be convex on both sides with respect to the center and the lower portion gradually decreases in width from the central portion toward the first connection portion with respect to the rotation direction.
The method according to claim 1,
Wherein the support rod is made of a material having elasticity and elastically deforms when the striking member is in contact with the object to be cut so as to reduce fatigue and rotational damping of the support rod.
3. The method of claim 2,
Wherein the support rod is made of a material having elasticity and elastically deforms when the striking member is in contact with the object to be cut so as to reduce fatigue and rotational damping of the support rod.
3. The method of claim 2,
And a driving unit for rotating the rotation shaft,
Wherein the drive unit supplies compressed air to an upper portion of the housing to rotate the support rod by pneumatic pressure.
3. The method of claim 2,
And a driving unit for rotating the rotation shaft,
Wherein the driving unit transmits the driving force of the driving motor to the rotating shaft to rotate the supporting rod.

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