TW201522253A - Cutting tool and glass cutting device using the same - Google Patents

Abstract

A cutting tool and a glass cutting device using the same are provided. The cutting tool comprises a handle and a cutting head connected to the handle. The cutting head has a first inclined surface, a second inclined surface opposite to the first inclined surface, a third inclined surface and a fourth inclined surface opposite to the third inclined surface. The first inclined surface has a first short edge, the second inclined surface has a second short edge, the third inclined surface has a first long edge, and the fourth inclined surface has a second long edge. The first short edge, the second short edge, the first long edge and the second long edge form a cutting terminal surface.

Description

Tool and glass cutting device using the same

The present invention relates to a tool and a glass cutting device using the same, and in particular to a tool and a glass cutting device using the same.

Conventional glass cutting devices, such as circular saw-type cutters, inevitably cut a deep dent on the glass. Since the cut surface is usually rough, the deeper the dent is, the larger the rough area is, which leads to a decrease in the strength of the glass.

The present invention relates to a cutter and a glass cutting device using the same, which can improve the problem of the decrease in the strength of the glass.

According to an embodiment of the invention, a tool is proposed. The tool includes a handle and a cutter head. The cutter head is coupled to the shank and has a first first inclined surface and a second inclined surface and a third inclined surface and a fourth inclined surface. The first oblique mask has a first short side and the second inclined surface has a second side The short side and the third diagonal mask have a first long side and a fourth oblique side has a second long side. The first long side, the second long side, the first short side and the second short side form one of the cutting end faces of the cutter head.

According to another embodiment of the present invention, a glass cutting device is proposed Set. The glass cutting device includes a fixed platform, a swing arm and a cutter. The fixed platform is used to accept the placement of a glass. The tool is placed on the swing arm. The tool is used to cut a glass and includes a handle and a cutter head. The cutter head is coupled to the shank and has a first first inclined surface and a second inclined surface and a third inclined surface and a fourth inclined surface. The first oblique mask has a first short side and the second inclined surface has a second side The short side and the third diagonal mask have a first long side and a fourth oblique side has a second long side. The first long side, the second long side, the first short side and the second short side form one of the cutting end faces of the cutter head.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

100‧‧‧ glass cutting device

110‧‧‧Fixed platform

110s‧‧‧ loading surface

110r‧‧‧ Groove

111‧‧‧ airway

120‧‧‧vacuum source

130‧‧‧ Cutting speed controller

131‧‧‧Motor

132‧‧‧ lead screw

133‧‧‧Mobile platform

140‧‧‧ swing arm

141‧‧‧ first end

142‧‧‧ second end

143, 144‧‧‧ pivot point

150‧‧‧Cutting force controller

160‧‧‧Tool holder

170‧‧‧Tools

170s‧‧‧ cutting end face

171‧‧‧shank

172‧‧‧ cutter head

172s1‧‧‧ first slope

172s2‧‧‧second slope

172s3‧‧‧ third slope

172s4‧‧‧4th bevel

172e1‧‧‧First short side

172e2‧‧‧second short side

172e3‧‧‧First long side

172e4‧‧‧Second long side

180‧‧‧ cutting angle controller

190‧‧‧split elements

A1, A2, A3, A4‧‧‧ angle

C1‧‧‧ cuts

D1, D2‧‧‧ length

F2‧‧‧force

F1‧‧‧ force

Fc‧‧‧ cutting force

G1‧‧‧ glass

H‧‧‧ Depth

L1, L2‧‧‧ arm

T1, t2, t3, t4, t5‧‧‧ time points

X‧‧‧ cutting direction

Y‧‧‧Vertical direction

Z‧‧‧direction of rotation

Fig. 1 is a perspective view showing a glass cutting device in accordance with an embodiment of the present invention.

Fig. 2 is a front elevational view of the glass cutting device of Fig. 1.

Figure 3 shows the appearance of the tool.

Figure 4 is a bottom plan view of the tool of Figure 3.

Fig. 5 is a side view showing the glass cutting device of Fig. 1.

Fig. 6 is a schematic view showing the splitting element of the glass cutting device of the embodiment.

7A to 7C are diagrams showing the control of the cutting force of the embodiment.

1 is a front view of a glass cutting device according to an embodiment of the present invention, and FIG. 2 is a front view of the glass cutting device of FIG. 1. The glass cutting device 100 is used to cut a glass, such as a thin glass. Thin glass thickness Less than 200 microns or other smaller thickness. Glass can be applied to touch panels, display panels, or other devices that require glass. In another embodiment, the glass cutting device 100 can also be used to cut glass that is thicker than the thin glass.

The glass cutting device 100 includes a fixed platform 110, a vacuum source 120, Cutting speed controller 130, swing arm 140, cutting force controller 150, tool holder 160, tool 170, cutting angle controller 180, and splitting element 190.

The fixed platform 110 has a passenger plane 110s and a plurality of air passages 111. The riding surface 110s is used to carry the glass G1. The air passage 111 penetrates the fixed platform 110 from the riding surface 110s and communicates with a vacuum source 120. The glass G1 can be sucked by the vacuum suction of the vacuum source 120 and fixed on the riding surface 110s, so that the stability of the glass G1 during the cutting process can be improved, thereby improving the stability of the cut surface.

The cutting speed controller 130 includes a motor 131, a lead screw 132, and Mobile platform 133. The moving platform 133 is connected to the lead screw 132. The motor 131 is, for example, a servo motor, which drives the lead screw 132 to rotate to drive the moving platform 133 to move along the cutting direction X at a cutting speed, thereby driving the swing arm 140 and the cutter 170 along the cutting speed. The cutting direction X is moved to cut the glass G1. Specifically, the cutter 170 of the embodiment of the present invention cuts the glass G1 in a translational and non-rotating manner, which is not intended to limit the embodiments of the present invention. Compared with the conventional circular giant cutting device (rotating the giant cut glass), the glass cutting device 100 of the embodiment of the present invention has a shallow depth of the cut C1 formed on the glass G1, so that the rough cut area can be reduced.

As shown in FIG. 2, the swing arm 140 has a first end 141 and a second end 142. The first end 141 of the swing arm 140 is pivotally connected to the moving platform 133 (Fig. 1). The swing arm 140 is moved with the moving platform 133 and is rotatable relative to the moving platform 133 about the rotational direction Z.

The cutting force controller 150 is, for example, a voice coil motor that is disposed on the moving platform 133. The cutting force controller 150 can apply a force F1 to the first end 141 of the swing arm 140, and the biasing force F1 is transmitted to the second end 142 of the swing arm 140 to act perpendicularly on the glass G1 with the cutting force Fc. The relationship between the urging force F1 and the cutting force Fc is as shown in the following formulas (1) and (2).

F1×L1=F2×L2..............................(1)

Fc=F2×cos(A1)..............................(2)

In the formula (1), the force arm L1 is the force F1 to the distance between the swing arm 140 and the pivot point 143 of the moving platform 133, and the arm L2 is the pivot point 143 of the swing arm 140 and the moving platform 133 and the swing arm 140 The distance of the pivot point 144 of the tool holder 160, the force F2 is the force that the force F1 is transmitted to the pivot point 144. The angle A1 is the angle between the cutting force Fc and the force F2, and the cutting force Fc is the component of the force F2 projected in the vertical direction Y.

Since the angle A1 is less than 90 degrees, the larger force F2 is divided into a smaller cutting force Fc, so that a large force F2 can be prevented from directly acting on the glass G1, thereby avoiding the formation of an excessively deep cut C1. That is, the depth H of the cut C1 of the present embodiment is shallow. As a result, the area of the cut of the cut C1 is reduced, so that the rough area of the cut surface is reduced, and the glass strength is not excessively lowered (relative to the large area of the cut).

For the cutting force Fc required to cut the incision C1 of the same depth, if the required cutting force Fc is larger, the depth control of the incision C1 can be more precise. Further, the depth value of the actually cut cut C1 is between H+h1 and H-h2, compared to the smaller cutting force Fc. In contrast, the larger cutting force Fc can cut out the more precise depth of the cut, ie the smaller the tolerance h1 and / or h2 can be controlled. A relatively large desired cutting force Fc can be obtained by adjusting the angle A1 to obtain a more accurate cut C1 size.

In addition, the cutter 170 is sandwiched between the load surface 110s of the glass G1. An angle A2, which is, for example, less than 90 degrees. For the cut C1 of the same depth, the smaller the angle A2 is, the larger the required cutting force Fc is, so the control of the accuracy of the depth H of the cut C1 is better. The angle A2 can be designed by designing the tool size or controlling the value of the above-mentioned angle A1 to obtain a more accurate cut C1 size.

The tool holder 160 is pivotally connected to the second end 142 of the swing arm 140, and It can rotate relative to the swing arm 140 about the rotational direction Z. The cutter 170 is fixed to the tool holder 160 such that when the tool holder 160 is rotated relative to the swing arm 140, the tool 170 rotates with respect to the swing arm 140. The above angle A1 can be adjusted by the rotation of the cutter holder 160.

The cutter 170 includes a shank 171 and a cutter head 172, wherein the shank 171 It is coupled to the cutter head 172 and fixed to the cutter holder 160.

Figure 3 shows the appearance of the tool, while Figure 4 shows the figure of Figure 3. The bottom view of the tool. The material of the cutter 172 contains diamond paint. The cutter 172 has a first inclined surface 172s1 and a second inclined surface 172s2 and a third inclined surface 172s3 and a fourth inclined surface 172s4. The first inclined surface 172s1 has a first short side 172e1, the second inclined surface 172s2 has a second short side 172e2, the third inclined surface 172s3 has a first long side 172e3, and the fourth inclined surface 172s4 has a second long side 172e4, wherein the first long side 172e3 The second long side 172e4, the first short side 172e1 and the second short side 172e2 are formed. One of the cutter heads 172 cuts the end face 170s. When the glass G1 is cut, the boundary area between the first short side 172e1, the first inclined surface 172s1, the third inclined surface 172s3, the fourth inclined surface 172s, and the cut end surface 170s penetrates into the glass G1 to form a cut C1 in the glass G1. If the first short side 172e1 is blunt or worn, the arrangement orientation of the cutter 170 may be changed, and the glass is cut at the boundary area between the second short side 172e2, the second inclined surface 172s2, the third inclined surface 172s3, the fourth inclined surface 172s4, and the cutting end surface 170s. G1. In addition, when the cutter 172 is blunt or worn, in addition to changing the configuration orientation of the cutter 170, the edge repair can be re-ground, so that the edge of the cut end face 170s is sharp and reaches a state in which the glass can be cut.

In this embodiment, the cut end face 170s is a rectangular end face. First short side The length D1 of 172e1 is between 0.01 mm and 0.05 mm. When the length D1 is smaller, a deeper cut C1 can be formed with the same cutting force Fc. The length D2 of the first long side 172e3 is between 1 mm and 2 mm. When the length D2 is smaller, a deeper cut C1 can be formed with the same cutting force Fc. In another embodiment, the cutting end face 170s is an elongated end face, which may be a profile formed by a straight line, a curved line, or a combination thereof.

An angle A3 between the first inclined surface 172s1 and the second inclined surface 172s2 Between 90 and 150 degrees, this range of angles ensures that the tool 170 has sufficient strength. By designing the angle A3, the above angle A2 value can be changed. For example, the larger the angle A3 is, the smaller the angle A2 is, and the greater the required cutting force Fc is, the better the control of the accuracy of the depth H of the cut C1 is. In addition, the angle A4 between the third slope 172s3 and the fourth slope 172s4 is between 30 and 90 degrees, which ensures that the cutter 170 has sufficient strength.

Fig. 5 is a side view showing the glass cutting device of Fig. 1. Cutting The angle controller 180 is, for example, a micro motor that is coupled to the tool holder 160 to drive the tool holder 160, thereby driving the tool 170 to rotate about the rotational direction Z to adjust the first slope 172s1 of the tool 170 (the angle of view of FIG. 5 is not visible). The angle A2 (Fig. 2) of the boarding surface 110s with respect to the glass G1.

Figure 6 is a view showing the splitting element of the glass cutting device of the embodiment. schematic diagram. The fixed platform 110 further has a recess 110r, and the position of the recess 110r corresponds to the cut C1 of the glass G1. The split element 190 is, for example, a push rod that can strike the glass G1 via the groove 110r to split the glass G1 into two pieces along the cut C1, as shown in FIG.

7A to 7C are diagrams showing the control of the cutting force of the embodiment. As shown in Figure 7A As shown, after the time lapse t1, the cutting force Fc maintains substantially the same force Fc1 to cut the glass G1. As shown in Fig. 7B, the cutting force Fc maintains the substantially identical first force Fc1 to cut the glass G1 between time points t1 and t2, and after the time point t3, the substantially identical second force Fc2 remains to be cut. The glass G1, wherein the second force Fc2 is greater than the first force Fc1, may also be smaller than the first force Fc1. As shown in FIG. 7C, the cutting force Fc maintains substantially the same first force Fc1 to cut the glass G1 between time points t1 and t2, and maintains substantially the same second force Fc2 between time points t2 and t3. The glass G1 is cut while maintaining a substantially identical third force Fc3 between time points t4 to t5 to cut the glass G1, wherein the second force Fc2 is smaller than the first force Fc1 and the third force Fc3 is greater than the first force Fc1. The control of the cutting force Fc in the embodiment of the present invention is not limited by the figures 7A to 7C, and different cutting force control modes can be matched for different types, thicknesses or uses of the glass.

In summary, although the present invention has been disclosed above in the preferred embodiment, it is not It is used to define the invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

170‧‧‧Tools

170s‧‧‧ cutting end face

171‧‧‧shank

172‧‧‧ cutter head

172s1‧‧‧ first slope

172s2‧‧‧second slope

172s3‧‧‧ third slope

172s4‧‧‧4th bevel

A3, A4‧‧‧ angle

Claims (11)

a cutter for cutting a glass, comprising: a handle; and a cutter head coupled to the handle and having a first inclined surface and a second inclined surface and a third inclined surface and a fourth inclined surface The first diagonal mask has a first short side, the second diagonal mask has a second short side, the third oblique mask has a first long side, and the fourth oblique mask has a second long side, the first long side The second long side, the first short side and the second short side form a cutting end surface of the cutting head. The tool of claim 1, wherein the cutting end face is a rectangular end face. The tool of claim 1, wherein an angle between the first slope and the second slope is between 90 and 150 degrees. The tool of claim 1, wherein the first short side has a length of between 0.01 and 0.05 mm. The tool of claim 1, wherein the glass has a thickness of less than 200 microns. A glass cutting device comprising: a fixed platform for receiving a glass; a swing arm; and a cutter as claimed in claim 1 is disposed on the swing arm. The glass cutting device of claim 6, further comprising: a cutting angle controller that controls the first slope of the cutter or an angle of the second slope relative to the glass. The glass cutting device of claim 7, wherein the angle is less than 90 degrees. The glass cutting device of claim 6, further comprising: a cutting speed controller that drives the swing arm to move in a cutting direction to drive the cutter to cut the glass. The glass cutting device of claim 6, wherein the swing arm has a first end and a second end, and the cutter is disposed at the second end of the swing arm, the glass cutting device further comprises: A cutting force controller applies a force to the first end of the swing arm to apply a cutting force to the glass. The glass cutting device of claim 6, wherein the solid The stationary platform has a recess corresponding to the location of the glass, and the glass cutting device further includes a splitting element through which the glass is struck to cause the glass to rupture along the incision.