JP2023104068A - Blade mounting fixture - Google Patents

Abstract

To provide a blade mounting fixture with which blades can be mounted safely and reliably even if there is only one operator without unstable operating posture or any negative effect on the operation safety or blade damages.SOLUTION: A blade mounting fixture 300 which is used when mounting an endless belt-shaped blade 230 that is wound around a driving shaft side wheel 211 and a driven shaft side wheel 221 of a cutting device includes a fixture body detachably fixed to the cutting device, a movable part supported by the fixture body so as to be vertically slidable between an upper limit position and a lower limit position, first holding means 305, 312 for holding the movable part at the upper limit position, and second holding means 306a, 306b, etc. for holding the movable part at the lower limit position, and the movable part includes a blade receiving part 310 that can swing between a retracted position and a blade receiving position that supports the blade.SELECTED DRAWING: Figure 8

Description

The present invention relates to a blade mounting jig, in particular, a cutting device having an endless belt-like blade for cutting a cylindrical single crystal, typified by a silicon ingot, which is a raw material for semiconductor device manufacturing. Including) relates to a blade mounting jig used when

A single-crystal silicon ingot produced by the CZ method, the FZ method, or the like is processed by a cylindrical grinding apparatus to make the outer circumference of the cylinder smooth and have a constant outer diameter. Next, after being subjected to treatments such as orientation flat (OF) and notching, it is sent to the cutting process. A cutting device is used at this time, and this cutting device cuts and discharges the conical portions (top cone and bottom cone) that are left at both ends of the ingot at the time of production, and removes only the cylindrical portion. do. After that, it is cut into a plurality of blocks as necessary, cuts and discharges unnecessary parts, cuts and takes out samples from specific parts, and so on.

The general cutting section configuration of the cutting device described here has two pulleys and a blade, and the blade is stretched between the pulleys, and the ingot is cut by the linear advance section. (See Patent Document 1, for example).

The above-mentioned blade uses diamond abrasive grains vapor-deposited on the lower edge of the endless strip steel material, and when attaching the blade, it is wound around two pulleys while supporting the blade, In addition, the distance between the pulleys mentioned above must be gradually increased during tensioning. Since this work requires a lot of work personnel and methods, a dedicated jig may be used (see, for example, Patent Document 2).

Japanese Unexamined Patent Application Publication No. 2001-198917 JP 2009-190138 A

The diameter of a work to be handled by such a cutting device is about 300 mm, which is the current mainstream, and the blade size of the corresponding device is about 4 m in outer circumference. In order to mount a blade of this size across two wheels, it is necessary to hold the blade by wrapping it around the wheel and move and adjust the position of the wheel in parallel. Therefore, there is a problem that a plurality of personnel are required to perform this work, and it is difficult for one person to perform the work. In addition, if the work is forced to be done by one person, the working posture of the worker becomes unstable, which adversely affects the safety of work and damage to the blade.

The present invention has been made to solve such problems, and it is possible to prevent the worker from becoming unstable in his or her working posture, and without adversely affecting work safety, damage to the blade, etc. To provide a blade mounting jig capable of safely and surely mounting a blade even by one person.

The blade mounting jig according to the present invention is
A blade mounting jig used when mounting an endless belt-shaped blade wound around a driving shaft side wheel and a driven shaft side wheel of a cutting device,
a jig body detachably fixed to the cutting device;
a movable part supported by the jig body so as to be vertically slidable between an upper limit position and a lower limit position;
a first holding means for holding the movable portion at the upper limit position;
a second holding means for holding the movable portion at the lower limit position;
The movable portion includes a blade receiving portion that can swing between a retracted position and a blade receiving position that supports the blade.

With such a configuration, the blade can be safely and surely attached even by a single operator without destabilizing the working posture and adversely affecting the safety of the work, damage to the blade, etc. be able to.

This is because the blade can be supported by the blade receiving portion that can swing between the retracted position and the blade receiving position that supports the blade.

Also, the blade can be attached more easily.

This is because the slidable movable portion and the swingable blade receiving portion are provided, so that the blade receiving portion can be quickly positioned at the blade mounting reference position.

In addition, in the blade mounting jig,
The first holding means includes a latch portion fixed to one of the jig main body and the movable portion, and an engaging portion fixed to the other with which the latch portion engages, wherein the movable portion is When positioned at the upper limit position, the movable part may be held at the upper limit position by engaging the latch part with the engaging part.

In this way, the movable portion can be held at the upper limit position (retracted position) outside the movable range of the cutting device.

In addition, in the blade mounting jig,
The latch portion may have a function of releasing engagement with the engaging portion with a single touch.

In addition, in the blade mounting jig,
The jig body includes a mounting base detachably fixed to the cutting device,
Further, fixing means for detachably fixing the mounting base to the cutting device may be provided.

In addition, in the blade mounting jig,
A positioning mechanism for positioning the mounting base on the cutting device may be further provided.

In this way, the blade mounting jig can be fixed to the cutting device in a state of being accurately positioned.

In addition, in the blade mounting jig,
The securing means may comprise a magnet or a one-touch lock secured to one of the mounting base and the cutting device.

In this way, the blade mounting jig can be easily attached to and detached from the cutting device. The blade attachment jig removed from the cutting device can be detachably fixed to another similar device for use.

In addition, in the blade mounting jig,
The second holding means includes a vertically extending slide shaft provided on the movable portion, a slider provided on the jig body and slidably engaged with the slide shaft, and a fixed position on the slide shaft. and a stopper fixed so as to be adjustable, and when the movable part is positioned at the lower limit position, the lower surface of the stopper abuts the upper surface of the slider, thereby holding the movable part at the lower limit position. You may

In addition, in the blade mounting jig,
A blade edge protection portion may be fixed to the receiving member of the blade.

According to the present invention, a blade can be safely and reliably attached even by a single worker without destabilizing the working posture and adversely affecting safety of work, damage to the blade, etc. It is possible to provide a blade mounting jig that can be used.

1 is a perspective view of an ingot cutting device 1; FIG. 4A is a perspective view of an ingot 510, and FIG. 4B is a perspective view of a cutting example of the ingot 510. FIG. 2A is an external view of a cutting device main body 100, and FIG. 4B is a perspective view of a cutting unit 200 installed inside the cutting device main body 100. FIG. 2 is a perspective view of a cutting unit 200; FIG. 5 is a perspective view of the main configuration extracted from FIG. 4; FIG. (a) A diagram showing the shape of the blade 230 when the driven shaft unit 220 is moved to the proper tension position, (b) A diagram showing the shape of the blade 230 when the driven shaft unit 220 is moved to the no-tension position. (a) A perspective view of the blade mounting jig 300 (upper limit position), (b) A perspective view of the blade mounting jig 300 (lower limit position). 3 is a perspective view of a cutting device to which a blade mounting jig 300 is detachably fixed; FIG.

(Embodiment 1)
An ingot cutting apparatus 1 according to a first embodiment of the present invention will be described below with reference to the accompanying drawings. The same reference numerals are given to corresponding components in each figure, and duplicate descriptions are omitted.

<Ingot cutting device 1>
FIG. 1 is a perspective view of an ingot cutting device 1. FIG.

As shown in FIG. 1, the ingot cutting device 1 mainly includes a cutting device main body 100, a cutting unit 200, an ejection unit 250, a loader unit 400, an ingot carrier 500, a block carrier unit 600, an ejection bucket unit 700, and a sample magazine unit. 800 and a control panel 900 .

<Ingot 510>
First, a configuration example of the ingot 510 to be processed will be described.

FIG. 2(a) is a perspective view of an ingot 510, and FIG. 2(b) is a perspective view showing a cutting example thereof.

The ingot 510 is, for example, a silicon ingot (cylindrically ground silicon ingot). The ingot 510 has a top-side cone 511 and a bottom-side cone 512 at both coaxial ends of its central axis AX ₅₁₀ , respectively, and has a direct-acting portion 513 at its central portion. Note that the ingot cutting apparatus 1 can handle an ingot 510 having a diameter ΦD ₅₁₀ of about 290 to 330 mm as a standard specification of the ingot 510 of 300 mm. After cutting the top-side cone 511 and the bottom-side cone 512 by the ingot cutting apparatus 1, the ingot 510 is cut into a block portion 514 and a sample portion 515 as shown in FIG. 2(b). Note that the sizes and the like of each of the block portion 514 and the sample portion 515 are set according to the specified and input processing instructions.

<Cutting device body 100>
Next, a configuration example of the cutting device main body 100 will be described.

3A is an external perspective view of the cutting device main body 100. FIG. FIG. 3(b) is a perspective view of the cutting unit 200 installed inside the cutting device main body 100. FIG.

The cutting device main body 100 incorporates a cutting unit 200 for processing the ingot 510 . The cutting unit 200 is supported so as to be able to move up and down.

The cutting device main body 100 is a known cutting device capable of performing predetermined processing on the ingot 510 so as to satisfy predetermined processing conditions. The processing conditions include, for example, the top-side cone cutting length and the number of cutting times of the ingot 510, the bottom-side cone cutting length, the linear motion portion cutting length and the number of cutting times (number of divisions), and whether or not to perform additional processing such as sample cutting. Conditions are entered by the operator.

<Cutting unit 200>
4 is a perspective view of the cutting unit 200, and FIG. 5 is a perspective view of the main configuration extracted from FIG.

4 and 5, the cutting unit 200 mainly includes a drive shaft unit 210, a driven shaft unit 220, a blade 230, a drive shaft side blade cover 232, a driven shaft side blade cover 233, and a blade tensioning unit 240. It has

The drive shaft unit 210 includes a drive shaft side wheel ₂₁₁ (driving pulley) rotatable around a rotation axis AX 211 extending in the vertical direction, and a drive motor 212 that rotates the drive shaft side wheel ₂₁₁ around the rotation axis AX 211. It has The rotating shaft of the drive shaft side wheel 211 and the drive shaft of the drive motor 212 are arranged coaxially.

The driven shaft unit 220 includes a driven shaft side wheel 221 (driven pulley) rotatable around a rotation axis AX ₂₂₁ extending in the vertical direction.

The rotation axis AX ₂₁₁ of the drive shaft side wheel 211 and the rotation axis AX ₂₂₁ of the driven shaft side wheel 221 are parallel to each other. Further, the drive shaft side wheel 211 and the driven shaft side wheel 221 have the same diameter and are arranged on the same horizontal plane.

The blade 230 is a blade made of strip-shaped thin plate steel in the shape of an endless belt. Diamond abrasive grains are deposited on the lower edge (whole circumference) of the blade 230 . The blade 230 is attached while being wound around the drive shaft side wheel 211 and the driven shaft side wheel 221 .

The blade tensioning unit 240 has a tension cylinder 241 . The tension cylinder 241 is, for example, a hydraulic cylinder driven by a hydraulic motor (not shown). The tension cylinder 241 is driven by controlling a hydraulic motor, and the tension of the blade 230 wound around the drive shaft side wheel 211 and the driven shaft side wheel 221 of the driven shaft unit 220 is an appropriate tension (for example, 1,000 kgf or more). ) (see FIG. 6(a)) or a no-tension position (see FIG. 6(b)) where the blade 230 has no tension. At that time, the rotation axis AX ₂₁₁ of the drive shaft side wheel 211 and the rotation axis AX ₂₂₁ of the driven shaft side wheel 221 are kept parallel to each other. FIG. 6(a) is a diagram showing the shape of the blade 230 when the driven shaft unit 220 is moved to the proper tension position, and FIG. 6(b) is the shape of the blade 230 when the driven shaft unit 220 is moved to the no-tension position. It is a figure showing.

The driven shaft unit 220 is slidably supported by a support mechanism (not shown) between a proper tension position (see FIG. 6(a)) and a non-tension position (see FIG. 6(b)).

When the driven shaft unit 220 is positioned at the proper tension position (see FIG. 6(a)), the distance between the pitches of the wheels 211 and 221 becomes a specified value. As a result, as shown in FIG. 6A, the blade portions 230a and 230b (the blade portion 230a on the front side and the blade portion 230b on the back side) between the drive shaft side wheel 211 and the driven shaft side wheel 221 are It is in a state of being stretched in a planar shape in contact with the driving shaft side wheel 211 and the driven shaft side wheel 221 . Therefore, the extension width W1 of the blade 230 (the distance between the blade portion 230a on the front side and the blade portion 230b on the back side) is equal to the wheel diameter.

On the other hand, when the driven shaft unit 220 is positioned at the no-tension position (see FIG. 6(b)), the pitch distance between the wheels 211 and 221 is the minimum value. As a result, as shown in FIG. 6B, the blade portions 230a and 230b (the blade portion 230a on the front side and the blade portion 230b on the back side) between the drive shaft side wheel 211 and the driven shaft side wheel 221 are It spreads outward in a convex circular arc shape until it abuts on the blade covers 232 and 233 . Therefore, the extension width W1 of the blade 230 (the distance between the blade portion 230a on the front side and the blade portion 230b on the back side) is larger than the wheel diameter.

<Blade mounting jig>
The blade mounting jig 300 is a jig used when mounting (including replacement) the endless belt-shaped blade 230 wound around the driving shaft side wheel 211 and the driven shaft side wheel 221 of the ingot cutting device 1 (cutting unit 200). It is a tool.

7A is a perspective view of the blade mounting jig 300 (upper limit position), and FIG. 7B is a perspective view of the blade mounting jig 300 (lower limit position). FIG. 8 is a perspective view of the ingot cutting apparatus 1 (cutting unit 200 and column 201) to which the blade mounting jig 300 is detachably fixed.

As shown in FIGS. 7A, 7B, and 8, the blade mounting jig 300 includes a jig body 301 detachably fixed to the ingot cutting device 1 (column 201), an upper limit position and a lower limit position. A movable portion 302 supported by a jig body 301 is provided so as to be vertically slidable between positions.

The jig body 301 includes a first support arm 303, mounting bases 304a and 304b, an engaging portion 305, and sliders 306a and 306b.

The first support arm 303 is arranged horizontally. Mounting bases 304a and 304b that are detachably fixed (for example, bolted) to the ingot cutting device 1 (column 201) are fixed (for example, screwed) to both ends of one main surface of the first support arm 303. there is On the other hand, an engaging portion 305 that engages with a latch portion 312 provided on the movable portion 302 (second supporting arm 307) is fixed (for example, screw-fixed) to approximately the center portion of the other main surface of the first supporting arm 303. ). Further, sliders 306a and 306b slidably engaged with slide shafts 308a and 308b are fixed (for example, screw-fixed) to both ends of the other main surface of the first support arm 303 .

One of the mounting bases 304a and 304b and the ingot cutting device 1 (column 201) is provided with a positioning pin (not shown), and the other is provided with a positioning hole (not shown) into which the positioning pin is inserted. ing. As a result, the blade mounting jig 300 (mounting bases 304a and 304b) can be fixed to the ingot cutting apparatus 1 (column 201) in a state of being accurately positioned. A locating pin and a locating hole are an example of the locating mechanism of the present invention.

The movable portion 302 includes a second support arm 307 , slide shafts 308 a and 308 b , stoppers 309 a and 309 b , a blade receiving portion 310 , a blade edge protection plate 311 and a latch portion 312 .

The second support arm 307 is arranged horizontally. Lower ends of vertically extending slide shafts 308a and 308b are fixed to both ends of the second support arm 307 (upper surface). Stoppers 309a and 309b are fixed (for example, fixed by screws) to the slide shafts 308a and 308b so that their fixed positions can be adjusted.

When the movable portion 302 is slid downward to the lower limit position while the slide shafts 308a and 308b are guided by the sliders 306a and 306b, the stoppers 309a and 309b (lower surfaces) fixed to the slide shafts 308a and 308b move the sliders 306a and 306b. 306b (upper surface). As a result, further downward sliding movement is restricted, and the movable portion 302 is held at the lower limit position. Vertically extending slide shafts 308a and 308b provided in the movable part 302, sliders 306a and 306b provided in the jig body 301 and slidably engaged with the slide shafts 308a and 308b, and fixed to the slide shafts 308a and 308b. The stoppers 309a and 309b fixed so as to be adjustable in position are an example of the second holding means of the present invention.

The lower limit position of the movable portion 302 can be adjusted by changing the fixed positions of the stoppers 309a and 309b with respect to the slide shafts 308a and 308b. Here, the fixed positions of the stoppers 309a and 309b with respect to the slide shafts 308a and 308b are set when the movable portion 302 is positioned at the lower limit position (that is, when the stoppers 309a and 309b (lower surface) come into contact with the sliders 306a and 306b (upper surface). case), the blade receiving portion 310 is adjusted to be positioned at the reference mounting height position of the blade 230 .

In addition, at approximately the center of the second support arm 307, the base end side of the blade receiving portion 310 is arranged around a swing axis AX ₃₁₀ extending in the vertical direction, and is positioned between a retracted position (see FIG. 7A) and a blade receiving position. (See FIG. 7(b)). The retracted position refers to a position where the blade receiving portion 310 does not interfere with the blade 230 , for example, a position where the blade receiving portion 310 overlaps the second support arm 307 . The blade receiving position refers to a position below the blade 230 (blade portion 230a on the front side).

A blade edge surface protection plate 311 is fixed to a portion of the blade receiving portion 310 (upper surface) where the lower end portion of the blade 230 abuts. The blade blade face protection plate 311 is, for example, a resin plate or a rubber plate. A latch portion 312 that engages with an engaging portion 305 provided on the jig main body 301 (first support arm 303) is provided adjacent to the blade receiving portion 310 at approximately the center of the second support arm 307. It is fixed (for example screwed). The latch portion 312 has a function of releasing the engagement with the engaging portion 305 with one touch.

When the movable portion 302 is slid upward to the upper limit position (retracted position) with the slide shafts 308a and 308b guided by the sliders 306a and 306b, the latch portion 312 is engaged with the engaging portion 305. FIG. Thereby, the movable portion 302 is held at the upper limit position. The latch portion 312 and the engaging portion 305 are examples of the first holding means of the present invention.

Next, an example of how to use the blade mounting jig 300 configured as described above will be described.

In the following description, the blade mounting jig 300 is, as shown in FIG. reference).

First, as shown in FIG. 7A, when the latch portion 312 fixed to the second support arm 307 is engaged with the engaging portion 305 fixed to the first support arm 303, the engagement is Then, the movable portion 302 is slid downward to the lower limit position where the stoppers 309a, 309b (bottom surface) fixed to the slide shafts 308a, 308b contact the sliders 306a, 306b (top surface). As a result, further downward sliding movement is restricted, and the movable portion 302 is held at the lower limit position.

Next, by swinging the blade receiving portion ₃₁₀ in the direction of the arrow AR1 in FIG. Place (see Figure 8).

Next, as shown in FIG. 6(b), the driven shaft unit 220 is positioned at the non-tension position. This is accomplished by the blade tensioning unit 240 . As a result, the blade portions 230a and 230b (the blade portion 230a on the front side and the blade portion 230b on the back side) between the drive shaft side wheel 211 and the driven shaft side wheel 221 are moved outward until they come into contact with the blade covers 232 and 233. spreads in a convex arc shape.

The blade 230 widened in this manner includes blade receiving portions 234 and 235 provided in blade covers 232 and 233 arranged below the blade 230 (the blade portion 230b on the back side) and the blade 230 (the front side). It is supported by a blade receiving portion 310 (blade blade surface protection plate 311) provided in a blade mounting jig 300 arranged below the side blade portion 230a). Note that the blade receiving portions 234 and 235 provided on the blade covers 232 and 233 and the blade receiving portion 310 provided on the blade mounting jig 300 are at the same height (reference height position for extending the blade 230). ).

As described above, the widened blade 230 is supported by the blade receiving portions 234 and 235 provided on the blade covers 232 and 233 and the blade receiving portion 310 provided on the blade mounting jig 300. The blade 230 can be easily removed by one person.

Next, a new blade 230 is wound around the drive shaft side wheel 211 and the driven shaft side wheel 221 . At this time, the new blade 230 can be supported by the blade receiving portions 234 and 235 provided on the blade covers 232 and 233 and the blade receiving portion 310 provided on the blade mounting jig 300, so that only one operator is required. The blade can be attached safely and reliably even if

Next, the driven shaft unit 220 is positioned at the proper tension position (see FIG. 6(a)). This is accomplished by the blade tensioning unit 240 . As a result, the blade portions 230a and 230b (the blade portion 230a on the front side and the blade portion 230b on the back side) between the drive shaft side wheel 211 and the driven shaft side wheel 221 are connected to the drive shaft side wheel 211 and the driven shaft side wheel. 221 is stretched in a plane.

Next, the blade receiving portion 310 is pivoted about the pivot axis AX ₃₁₀ in the arrow AR2 direction in FIG.

Next, the movable portion 302 is slid upward to the upper limit position (retracted position) where the latch portion 312 fixed to the second support arm 307 engages the engaging portion 305 fixed to the first support arm 303 . . Thereby, the movable portion 302 is held at the upper limit position.

By the above, attachment of the blade 230 is completed. After that, the cutting unit 200 is lowered by an elevating mechanism (not shown) while the blade 230 is being rotated, so that the ingot 510 is cut by the rectilinear portion 231 of the blade 230 (blade portion 230a stretched flat). It becomes possible to

As described above, according to the present embodiment, the working posture does not become unstable, and there is no adverse effect on the safety of the work, damage to the blade 230, or the like. Also, the blade 230 can be safely and reliably attached (including replacement).

This is because the blade 230 can be supported by the blade receiving portion 310 that can swing between the retracted position and the blade receiving position that supports the blade 230 .

Also, according to the present embodiment, the attachment of the blade 230 can be performed more easily. Further, according to this embodiment, the movable portion 302 can be held at the upper limit position (retracted position) outside the movable range of the ingot cutting device 1 (cutting unit 200).

This is because the movable part 302 that can slide and the blade receiving part 310 that can swing are provided, so that the blade receiving part 310 can be quickly positioned at the reference position for attaching the blade 230 .

Next, a modified example will be described.

In the above embodiment, as the positioning mechanism, a positioning pin (not shown) provided on one of the mounting bases 304a and 304b and the ingot cutting device 1 (column 201) and the positioning pin provided on the other are inserted. Although an example of using a positioning hole (not shown) that is positioned on the surface has been described, the present invention is not limited to this.

For example, as a positioning mechanism, the mounting bases 304a and 304b and the ingot cutting device 1 (column 201) are inserted into positioning recesses (for example, grooves) provided on one side and the positioning recesses provided on the other side. You may use the convex part which is carried out.

In the above embodiment, the jig body 301 (first support arm 303) is provided with the engaging portion 305, and the movable portion 302 (second support arm 307) is provided with the latch portion 312 that engages with the engaging portion 305. Although an example has been described, it is not limited to this. For example, conversely, the jig body 301 (first support arm 303) may be provided with the latch portion 312, and the movable portion 302 (second support arm 307) may be provided with the engaging portion 305 with which the latch portion 312 engages. .

In the above embodiment, bolts were used as fixing means for detachably fixing the blade mounting jig 300 (mounting bases 304a and 304b) to the ingot cutting apparatus 1 (column 201), but the fixing means is not limited to this. For example, as fixing means for detachably fixing the blade mounting jig 300 (mounting bases 304a and 304b) to the ingot cutting device 1 (column 201), one of the mounting bases 304a and 304b and the ingot cutting device 1 (column 201) has A fixed magnet (not shown) may be used (if the other is made of a magnetically attracted material). Further, although not shown, a bracket and an engaging portion for engaging the bracket are used as fixing means for detachably fixing the blade attachment jig 300 (attachment bases 304a and 304b) to the ingot cutting apparatus 1 (column 201). A one-touch lock (not shown) may be used. In this case, one of the mounting bases 304a and 304b and the ingot cutting device 1 (column 201) may be fixed with a bracket, and the other may be provided with an engaging portion for engaging with the bracket. In addition, this engaging portion has a function of releasing the engagement with the receiving metal with a single touch. As such a one-touch lock, for example, one-touch push catch (manufactured by Takigen Manufacturing Co., Ltd.) can be used.

In this way, the blade mounting jig 300 can be easily attached to and detached from the ingot cutting apparatus 1 (column 201). The blade mounting jig 300 removed from the ingot cutting apparatus 1 (column 201) can be detachably fixed to another similar apparatus for use.

All numerical values shown in the above embodiments are examples, and it is of course possible to use other appropriate numerical values.

The above embodiments are merely examples in all respects. The present invention is not limitedly interpreted by the description of the above embodiments. The invention can be embodied in various other forms without departing from its spirit or essential characteristics.

DESCRIPTION OF SYMBOLS 1... Ingot cutting device 100... Cutting device main body 200... Cutting unit 201... Column 202... Cover frame 210... Drive shaft unit 211... Drive shaft side wheel 212... Drive motor 220... Driven shaft unit 221... Driven shaft side wheel 230... Blade 230a, 230b Blade portion 231 Linear portion 232 Drive shaft side blade cover 233 Driven shaft side blade cover 234, 235 Blade receiving portion 240 Blade tensioning unit 241 Tension cylinder 300 Blade mounting jig 301 Jig body 302 Movable part 303 First support arms 304a, 304b Mounting base 305 Engagement parts 306a, 306b Slider 307 Second support arms 308a, 308b Slide shafts 309a, 309b Stopper 310 Blade receiver Part 310a, 310b Slide shaft 311 Blade edge protection plate 312 Latch part 400 Loader unit 500 Ingot carrier 510 Ingot 511 Top cone 512 Bottom cone 513 Linear motion part 514 Block part 515 Sample section 600 Block transport unit 700 Discharge bucket unit 800 Sample magazine unit 900 Control panel AR1 Middle arrow AR2 Middle arrow AX211 Rotation axis AX221 Rotation axis AX310 Swing axis AX510 Central axis W1 Tension width

Claims (8)

A blade mounting jig used when mounting an endless belt-shaped blade wound around a driving shaft side wheel and a driven shaft side wheel of a cutting device,
a jig body detachably fixed to the cutting device;
a movable part supported by the jig body so as to be vertically slidable between an upper limit position and a lower limit position;
a first holding means for holding the movable portion at the upper limit position;
a second holding means for holding the movable portion at the lower limit position;
The blade mounting jig, wherein the movable portion includes a blade receiving portion that can swing between a retracted position and a blade receiving position that supports the blade. The first holding means includes a latch portion fixed to one of the jig main body and the movable portion, and an engaging portion fixed to the other with which the latch portion engages, wherein the movable portion is 2. The blade mounting jig according to claim 1, wherein when the movable portion is positioned at the upper limit position, the movable portion is held at the upper limit position by engaging the latch portion with the engaging portion. 3. The blade mounting jig according to claim 2, wherein the latch portion has a function of releasing the engagement with the engaging portion with one touch. The jig body includes a mounting base detachably fixed to the cutting device,
The blade mounting jig according to any one of claims 1 to 3, further comprising fixing means for detachably fixing the mounting base to the cutting device. The blade mounting jig according to claim 4, further comprising a positioning mechanism for positioning the mounting base on the cutting device. A blade mounting jig according to claim 4 or 5, wherein said fixing means includes a magnet or a one-touch lock fixed to one of said mounting base and said cutting device. The second holding means includes a vertically extending slide shaft provided on the movable portion, a slider provided on the jig body and slidably engaged with the slide shaft, and a fixed position on the slide shaft. and a stopper fixed so as to be adjustable, and when the movable part is positioned at the lower limit position, the lower surface of the stopper abuts the upper surface of the slider, thereby holding the movable part at the lower limit position. The blade mounting jig according to any one of claims 1 to 6. The blade mounting jig according to any one of claims 1 to 7, wherein a blade edge protection portion is fixed to the receiving member for the blade.