JP5389294B1 - Cutting machine for test piece - Google Patents

Abstract

A cutting machine for a test piece capable of safely and reliably cutting a test piece containing harmful inorganic waste.
A test piece cutting machine 1 includes a holding mechanism 30 for holding a test piece T, a cutting mechanism 40 for cutting the test piece T, a moving mechanism 50 for moving the cutting mechanism 40, a cutting mechanism 40 and holding. And a housing 10 that houses the mechanism 30. The moving mechanism 50 is provided in the cutting mechanism 40 so as to be rotatably fixed to the housing 10, a nut 52 that is screwed into the screw shaft 51, and arranged outside the housing 10, and rotates the screw shaft 51. And a handle 53 to be moved. The housing 10 includes an opening 11, a door 12 that closes the opening 11, and a window 13 that allows the inside to be observed.
[Selection] Figure 1

Description

  The present invention relates to a test piece cutting machine that reproduces a state in which an embankment material containing inorganic waste is reclaimed.

  Conventionally, as a method for treating harmful inorganic waste such as harmful substances and radioactive substances, a method is known in which a cement or additive is added to the inorganic waste and kneaded to produce a banking material, and the banking material is buried. ing.

  As one of the methods for evaluating such a processing method, a CSG (Cement Sand and Gravel) material in which water and additives are added to inorganic waste and cement is kneaded, and the kneaded CSG material is filled into a mold. There is a method of molding and performing various tests such as a dissolution test using the molded product as a test piece.

  By the way, when using a test piece for a test, it is necessary to cut the test piece to produce a test piece having a shape and size suitable for the test.

  And generally as a cutting device which can be used in order to produce a test piece, as shown in patent documents 1, cutting which has a holding mechanism which holds the object to cut, and a blade part which cuts an object 2. Description of the Related Art A cutting machine is known that includes a mechanism and a moving mechanism that moves a blade portion of the cutting mechanism so as to move forward and backward with respect to an object.

JP 2001-293613 A

  However, the conventional cutting machine is not intended to cut a test piece manufactured by CSG material containing harmful inorganic waste such as harmful substances and radioactive substances. Therefore, when cutting the test piece, there has been a problem that harmful inorganic wastes such as harmful substances and radioactive substances are scattered around the cutting machine.

  This invention is made | formed in view of the above point, and it aims at providing the cutting machine for test pieces which can cut | disconnect the test piece containing a harmful inorganic waste safely and reliably.

In order to achieve the above object, a test piece cutting machine according to the present invention is a test piece cutting machine that cuts a test piece that reproduces a state in which a filling material containing inorganic waste is reclaimed, and holds the test piece. A holding mechanism, a cutting mechanism having a blade portion for cutting the test piece, a moving mechanism for moving the blade portion of the cutting mechanism forward and backward with respect to the test piece held by the holding mechanism, a blade portion of the cutting mechanism, and A housing for holding the holding mechanism, a dust collecting device for collecting dust generated when cutting the test piece , a moving mechanism is provided in the cutting mechanism and a screw shaft that is rotatably fixed to the housing. includes a nut that is screwed to the screw shaft, and a handle for rotating the screw shaft, the housing is formed in one side wall constituting the housing, holding the test piece holding mechanism An opening which is opened when to be, the sealing member is attached to the peripheral portion of the surface of the opening side, holding a door unit for closing the opening, a transparent member, the holding mechanism with the door closed portion and a window portion made form the position of the door portion which can be observed a test piece that is, the side wall in which an opening is formed are formed on different side walls, an exhaust port for discharging the dust to the dust collecting device characterized in that it has and.

As described above, the test piece cutting machine of the present invention has a housing in which the door portion and the window portion are integrated, and the seal member is attached to the peripheral edge portion of the surface of the door portion on the opening side. Since the mechanism uses a screw shaft with few holes for attachment to the housing, the housing can be easily closed by simply closing the door . In addition, the test piece cutting machine of the present invention has a configuration in which a moving mechanism for moving the blade portion of the cutting mechanism can be operated by a handle disposed outside the housing.

  Further, in the test piece cutting machine of the present invention, a window portion through which the test piece held by the holding mechanism can be observed is formed in the housing.

Therefore, in the test piece cutting machine of the present invention, the test piece can be cut while checking the state of the test piece through the window . Further, in the test piece cutting machine of the present invention, the housing is closed only by closing the door, and dust generated when the test piece is cut is sent together with air from the exhaust port of the housing by the dust collector. Since dust is collected, it is possible to prevent scattering of harmful inorganic waste such as harmful substances and radioactive substances . As a result, according to the test piece cutting machine of the present invention , the test piece can be safely and reliably cut.

  Further, the test piece cutting machine of the present invention preferably includes a buffer mechanism that reduces the moving speed of the blade portion when the blade portion of the cutting mechanism reaches a position at which the cutting of the test piece is completed.

  If the test piece is cut at a constant speed, when the test piece has been cut, the part that has not been cut still breaks due to the inclination of the already cut part due to its own weight and the vibration transmitted from the cutting mechanism. May end up.

  However, if a shock absorbing mechanism that reduces the moving speed of the blade of the cutting mechanism relative to the test piece at the end of cutting the test piece is provided, vibrations transmitted from the cutting mechanism are suppressed. Thus, the test piece can be more reliably cut into a desired shape.

  And as a buffer mechanism in the cutting machine for test pieces of this invention, it is set as the structure which has an elastic part which urges | biass the force of the direction opposite to the direction where the blade part of a cutting mechanism faces a test piece with respect to a cutting mechanism. be able to.

It is a side view which shows the structure of the cutting machine for test pieces which concerns on embodiment of this invention, (a) shows the state at the time of installing a test piece, (b) shows the state at the time of cut | disconnecting a test piece. It is a cutting machine AA line sectional view concerning this embodiment, (a) shows the state before cutting a test piece, and (b) shows the state after cutting a test piece.

  Hereinafter, with reference to FIG.1 and FIG.2, embodiment of the cutting machine for test pieces of this invention is described.

  As shown in FIGS. 1 and 2, the test piece cutting machine 1 of the present invention is housed in a housing 10, a dust collector 20 connected to the housing 10, and the housing 10, and holds the test piece T. A holding mechanism 30, a cutting mechanism 40 for cutting the test piece T held by the holding mechanism 30, a moving mechanism 50 for moving the cutting mechanism 40, and a buffer mechanism 60 for adjusting the moving speed of the cutting mechanism 40. ing.

  The housing 10 is a box-shaped housing as shown in FIG. The housing 10 includes an opening portion 11, a door portion 12 that can be opened and closed with respect to the opening portion 11, and a window portion 13 formed in the door portion 12. Further, a housing caster 14 is attached to the lower portion of the housing 10 to facilitate movement. An exhaust port (not shown) is formed on a side wall different from the side wall where the opening 11 of the housing 10 is formed.

  The opening 11 is an opening formed on one surface of the side wall of the housing 10. The operation of holding the test piece T by the holding mechanism 30 accommodated in the housing 10 is performed by opening the opening 11.

  When the door 12 is closed, the door 12 is configured to close the opening 11 and airtightly close the housing 10. Specifically, as shown in FIG. 1A, a seal member 12a is attached to the peripheral edge of the surface of the door 12 on the opening 11 side.

  The window 13 is formed of a transparent member at a position where the test piece T held by the holding mechanism 30 can be observed even when the door 12 is closed. Therefore, as shown in FIG. 1B, even when the door 12 is closed and the housing 10 is airtightly closed, the test piece held by the holding mechanism 30 through the window 13 is used. The state of T can be observed.

  As shown in FIG. 1B, the dust collector 20 includes a hose 21 having one end connected to an exhaust port (not shown) of the housing 10, a blower 22 connected to the other end of the hose 21, and a blower 22. And a dust collecting container 23 connected to. In addition, the arrow shown in FIG.1 (b) shows the direction through which the air flows from the housing 10 to the dust collecting container 23 when the dust collector 20 is driving.

  One end of the hose 21 is detachably connected to the housing 10. Air containing dust generated when the test piece T is cut is exhausted from the housing 10 through the hose 21.

  The blower 22 includes a fan 22 a, a fan 22 a, a hose 21, a blower path 22 b to which the dust collecting container 23 is connected, and a gripping part 22 c that grips the dust collecting container 23. A dust collector caster 22d for facilitating movement is attached to the lower part of the blower 22.

  The fan 22a sucks air containing dust from the housing 10 through the hose 21 to the air blowing path 22b and blows the sucked air from the air blowing path 22b to the dust collecting container 23 (FIG. 1B). ) See arrow).

  The dust collection container 23 is a replaceable bag-shaped container. Air containing dust exhausted from the air passage 22b is sent to the dust collecting container 23, and dust generated when the test piece T is cut is collected.

  As shown in FIG. 1A, the holding mechanism 30 includes a base 31 on which the test piece T is placed, a fixed vise 32 fixed to the base 31, and a movable vise that is movable with respect to the base 31. 33.

  The base 31 is fixed inside the housing 10 at a position where the test piece T can be placed. The base 31 has a guide shaft 31 a that moves the moving vise 33 in a predetermined direction. The base 31 is formed with a groove 31b for avoiding contact with the blade 41 of the cutting mechanism 40 (see FIG. 2B).

  The fixed vise 32 is fixed to the base 31. The fixed vise 32 is configured as a pair of members in order to avoid contact with the blade portion 41 of the cutting mechanism 40. Therefore, the blade 41 of the cutting mechanism 40 passes between the pair of fixed vises 32 when cutting the test piece T.

  The moving vise 33 is attached to the base 31 so as to be movable along the guide shaft 31a. Similarly to the fixed vise 32, the moving vise 33 is also configured as a pair of members in order to avoid contact with the blade 41 of the cutting mechanism 40 (see FIG. 2B).

  When the test piece T is held by the holding mechanism 30, after placing the test piece T on the base 31, the moving vise 33 is moved along the guide shaft 31 a of the base 31, and the fixed vise 32 and the moving vise are moved. 33, the test piece T is sandwiched and held.

  As shown in FIG. 2, the cutting mechanism 40 is fixed to the blade portion 41 for cutting the test piece T, the support portion 42 that supports the blade portion 41, and the housing 10, and defines the moving direction of the support portion 42. And a drive source (not shown).

  The blade portion 41 is a disc-shaped circular saw body having a blade formed on the outer peripheral portion, and is a member that can be removed and replaced with respect to the support portion 42. The blade 41 is rotated by a driving force transmitted from a driving source (not shown) operable from the outside of the housing 10. The blade portion 41 is located above the test piece T held by the holding mechanism 30.

  The support part 42 supports the blade part 41 rotatably. The support 42 is movably attached to the guide 43. Therefore, when the support portion 42 moves in the direction defined by the guide portion 43, the blade portion 41 also moves integrally with the support portion 42.

  The guide portion 43 is a columnar member perpendicular to the upper surface and the lower surface of the housing 10. By the guide portion 43, the moving direction of the support portion 42 is defined in a direction perpendicular to the housing 10, that is, a direction in which the support portion 42 advances and retreats with respect to the test piece T held by the holding mechanism 30.

  As shown in FIG. 2, the moving mechanism 50 includes a screw shaft 51 that is rotatably fixed to the housing 10, a nut 52 that is screwed to the screw shaft 51, and a handle 53 that is provided outside the housing 10. doing.

  The screw shaft 51 is rotatably fixed to the upper surface side of the housing 10 inside the housing 10. The axial direction is parallel to the moving direction of the support portion 42 defined by the guide portion 43 of the cutting mechanism 40. In addition, one end portion penetrates the upper surface side of the housing 10 and protrudes to the outside.

  The nut 52 moves forward and backward in the axial direction of the screw shaft 51 in accordance with the rotation of the screw shaft 51. The nut 52 is provided on the support portion 42 of the cutting mechanism 40, and the support portion 42 moves integrally with the nut 52.

  The handle 53 is connected to the end of the screw shaft 51 that protrudes outside the housing 10. The screw shaft 51 rotates according to the rotation of the handle 53. Therefore, when the handle 53 is rotated, the nut 52 and the support portion of the cutting mechanism 40 in which the nut 52 is provided in the axial direction of the screw shaft 51, that is, the direction defined by the guide portion 43 of the cutting mechanism 40. 42 and the blade part 41 supported by the support part 42 move integrally.

  As shown in FIG. 2, the buffer mechanism 60 includes a fixing portion 61 attached to the guide portion 43 of the cutting mechanism 40 and a spring portion 62 attached to the fixing portion 61.

  The fixing portion 61 is fixed to the guide portion 43 of the cutting mechanism 40 at a position below the support portion 42. This fixing position is such that the lower surface of the support portion 42 of the cutting mechanism 40 is attached to the upper surface of the fixing portion 61 when the blade portion 41 of the cutting mechanism 40 finishes cutting the test piece T. 62 is a position to compress (see FIG. 2B). The fixed position can be changed along the support portion 42 in accordance with the shape of the blade portion 41 and the like.

  The spring part 62 is an elastic member of the present invention. The spring portion 62 is disposed on the upper surface of the fixing portion 61 so as to face the support portion 42 side of the cutting mechanism 40. The spring portion 62 urges the cutting mechanism 40 with a force in a direction opposite to the direction in which the blade portion 41 of the cutting mechanism 40 faces the test piece T when contacting the support portion 42.

  As described above, in the test piece cutting machine 1 according to the present embodiment, the blade portion 41 and the holding mechanism 30 of the cutting mechanism 40 are housed in the housing 10 that is airtightly closed by closing the door portion 12.

  Further, the test piece cutting machine 1 according to the present embodiment is configured such that the moving mechanism 50 that moves the blade portion 41 of the cutting mechanism 40 can be operated by the handle 53 disposed outside the housing 10.

  Further, the housing 10 includes an opening 11 for installing the test piece T, an exhaust port (not shown) for exhausting dust generated when the test piece T is cut, and a screw shaft 51 of the moving mechanism 50. There is no part to be closed in order to airtightly close the housing 10 other than the hole for passing it through.

  Furthermore, in the test piece cutting machine 1 of the present embodiment, a window portion 13 through which the test piece T held by the holding mechanism 30 can be observed is formed in the housing 10.

  Therefore, in the test piece cutting machine 1 of the present embodiment, while checking the state of the test piece T, the test piece T is safe while preventing the scattering of harmful inorganic waste such as harmful substances and radioactive substances, and the like. Can be cut reliably.

  Further, in the test piece cutting machine 1 according to the present embodiment, even when the handle 53 of the moving mechanism 50 is rotated with a constant force, the spring portion 62 of the buffer mechanism 60 and the support portion 42 of the cutting mechanism 40. And when the blade 41 of the cutting mechanism 40 reaches a position where the test piece T has been cut, the buffer mechanism 60 reduces the moving speed of the blade 41.

  Therefore, in the test piece cutting machine 1 of the present embodiment, vibration transmitted from the cutting mechanism 40 is suppressed, and therefore, when the test piece T is completely cut, a portion that has not yet been cut is missing and broken. There is no. As a result, the test piece can be reliably cut into a desired shape.

  The test piece cutting machine 1 according to the present embodiment includes a dust collector 20 connected to the housing 10. Therefore, not only when the test piece T is cut by the dust collector 20, but also after the test piece T is cut, dust containing harmful inorganic waste existing inside the housing 10 is collected. be able to.

  Therefore, in the test piece cutting machine 1 of the present embodiment, inorganic waste is scattered around the test piece cutting machine 1 even when the opening 11 of the housing 10 is opened after the test piece T is cut. There is no end.

  Although the illustrated embodiment has been described above, the present invention is not limited to such a form.

  The test piece cutting machine 1 of the above embodiment is configured as a dry cutting machine. This is because, when configured as a wet cutting machine using circulating water, the water injected as circulating water is contaminated by dust containing harmful inorganic waste generated when cutting the test piece. This is because the contaminated water must be treated separately.

  However, the test piece cutting machine of the present invention may be configured as a wet cutting machine as long as it has means for treating contaminated water.

  Further, the test piece cutting machine 1 of the above embodiment uses a disk-shaped circular saw body having a blade formed on the outer peripheral portion as the blade portion 41 of the cutting mechanism 40.

  However, the blade portion of the cutting mechanism of the test piece cutting machine of the present invention is not limited to such a configuration, and any blade that can cut the test piece may be used. For example, it may be an annular one having a blade on the inner periphery, or a test piece may be cut by reciprocating. Moreover, as a raw material of a blade part, a metal thing may be sufficient and a diamond cutter may be sufficient. Moreover, a cutting grindstone may be used.

  Further, the moving mechanism 50 of the test piece cutting machine 1 of the above embodiment moves the blade portion 41 of the cutting mechanism 40 in the vertical direction with respect to the housing 10.

  However, the moving mechanism of the test piece cutting machine of the present invention is not limited to such a configuration, and may be any mechanism as long as the blade portion of the cutting mechanism is advanced and retracted relative to the test piece. For example, you may comprise so that it may move to a horizontal direction with respect to a housing.

  In addition, the moving mechanism 50 of the test piece cutting machine 1 of the above embodiment is configured to move the blade portion 41 of the cutting mechanism 40 by manually rotating the handle 53.

  However, the movement mechanism of the test piece cutting machine according to the present invention is not limited to such a configuration, and the movement of the blade portion of the cutting mechanism is controlled from the outside of the housing while the housing is airtightly closed. Anything is possible. For example, a lever may be used instead of the handle. Moreover, it is good also as an electric type instead of a manual type.

  Further, the moving mechanism 50 and the cutting mechanism 40 of the test piece cutting machine 1 of the above embodiment include a screw shaft 51 that is rotatably fixed to the housing 10, a nut 52 that moves along the screw shaft 51, It has the support part 42 which moves along the guide part 43 integrally with the nut 52.

  However, the moving mechanism and the cutting mechanism of the test piece cutting machine according to the present invention are not limited to such a configuration, and may be any mechanism that moves the blade portion of the cutting mechanism in a predetermined direction. For example, the screw shaft and the guide portion may be integrated, and the nut and the support portion may be integrated.

  Further, the housing 10 of the test piece cutting machine 1 of the above embodiment has a window portion 13 formed of a transparent member on the door portion 12 in order to observe the inside.

  However, the window portion of the housing of the test piece cutting machine of the present invention is not limited to such a configuration, and any window may be used as long as the inside can be observed while the housing is airtightly closed. For example, a window portion may be formed on one surface of the side wall of the housing. Moreover, you may comprise one of the side walls of a housing with a transparent member. Furthermore, without forming the window portion, a camera may be arranged inside the housing to observe the internal state.

  Further, the buffer mechanism 60 of the test piece cutting machine 1 of the above embodiment limits the moving speed of the cutting mechanism 40 using the elastic force of the spring portion 62.

  However, the buffer mechanism of the test piece cutting machine of the present invention is not limited to such a configuration, and may be any one that can limit the moving speed of the cutting mechanism 40. For example, a hydraulic mechanism composed of a cylinder, a piston, and oil filled in the cylinder may be used.

  Further, the dust collector 20 of the test piece cutting machine 1 of the above embodiment is connected to the outside of the housing 10 via a hose 21.

  However, the dust collector of the cutting machine for test pieces of the present invention is not limited to such a configuration, and any dust collector that can collect dust generated when cutting the test piece may be used. For example, a small dust collector may be disposed inside the housing.

DESCRIPTION OF SYMBOLS 1 ... Test piece cutting machine, 10 ... Housing, 11 ... Opening part, 12 ... Door part, 12a ... Sealing member, 13 ... Window part, 14 ... Caster for housing, 20 ... Dust collector, 21 ... Hose, 22 ... Blower, 22a ... Fan, 22b ... Blower passage, 22c ... Holding part, 22d ... Caster for dust collector, 23 ... Dust collector, 30 ... Holding mechanism, 31 ... Base, 31a ... Guide shaft, 31b ... Groove, 32 ... Fixed vise, 33 ... moving vise, 40 ... cutting mechanism, 41 ... blade portion, 42 ... support portion, 43 ... guide portion, 50 ... moving mechanism, 51 ... screw shaft, 52 ... nut, 53 ... handle, 60 ... buffer Mechanism 61 ... fixed part 62 ... spring part (elastic member), T ... test piece.

Claims (3)

A cutting machine for a test piece that cuts a test piece that reproduces a state in which the embankment material containing inorganic waste is reclaimed,
A holding mechanism for holding the test piece;
A cutting mechanism having a blade portion for cutting the test piece;
A moving mechanism for moving the blade portion of the cutting mechanism so as to freely advance and retract with respect to the test piece held by the holding mechanism;
A housing that houses the blade portion and the holding mechanism of the cutting mechanism ;
A dust collector that collects dust generated when the test piece is cut , and
The moving mechanism includes a screw shaft that is rotatably fixed to the housing, a nut that is provided in the cutting mechanism and is screwed to the screw shaft, and a handle that rotates the screw shaft.
The housing is formed on one of the side walls constituting the housing, and an opening is opened when the test piece is held by the holding mechanism, and a seal member is attached to a peripheral portion of the surface on the opening side. is a door portion for closing the opening, a transparent member, made form the position of the door portion capable of observing the test piece held by the holding mechanism in a state of closing the door portion A test piece cutting machine , comprising: a window portion; and an exhaust port for discharging the dust to the dust collecting device, formed on a side wall different from the side wall on which the opening is formed . The test piece cutting machine according to claim 1,
A test piece cutting machine, comprising: a buffer mechanism that reduces a moving speed of the blade portion when the blade portion of the cutting mechanism reaches a position at which the cutting of the test piece is completed. The test piece cutting machine according to claim 2,
The buffering mechanism includes an elastic member that biases a force in a direction opposite to a direction in which the blade portion of the cutting mechanism faces the test piece against the moving mechanism. .