A test piece cutting device for cutting test substrates into test pieces

Abstract

To separate a test piece after cutting from a cylindrical blade with a simple structure at low cost. [Solution] The device comprises a receiving table 30 on which a test substrate 6 is placed, a blade mechanism 1 that cuts the test substrate 6 placed on the receiving table 30 with a cylindrical blade 2, an extrusion mechanism 10 that pushes the cut test piece 7 out of the cylindrical blade 2, and a press mechanism 30 that moves the blade mechanism 1 in a first direction, the blade mechanism 1 being connected to the press mechanism 30 and comprising a cylindrical blade 2 that cuts the test substrate 6 into test pieces 7, the extrusion mechanism 10 having an extrusion section 11 that extends into the cylindrical blade 2 and pushes the cut test piece 7 out of the cylindrical blade 2, and a stopper section 14 that stops the extrusion section 11, and when the press mechanism 20 moves the cylindrical blade 2 away from the receiving table 30 after the test piece 7 has been cut, the extrusion section 11 pushes the test piece 7 out of the cylindrical blade 2.

Description

[Technical Field]

[0001] The present disclosure relates to a test piece cutting device that cuts sheet- or plate-shaped test substrates such as plastic, rubber, and metal into test pieces. [Background technology]

[0002] Materials used for various purposes undergo various tests such as tensile tests and impact tests based on standards such as JIS. For example, to perform tensile tests and impact tests on rubber used in tires, the rubber is made into a sheet-like test substrate of a specified thickness and then cut into dumbbell-shaped test pieces. The test substrate is then cut to dimensions in thickness and outer shape that comply with JIS standards before being used for tensile tests.

[0003] A test specimen cutting device has been developed that uses a cylindrical blade to cut test substrates into a predetermined shape. The cylindrical blade can punch out and cut test specimens of a predetermined shape with a single up-and-down movement. However, depending on the thickness, hardness, material, and shape of the test material, the cut specimen may not be able to fall under its own weight and become stuck inside the cylindrical blade. Removing, pushing, or separating the test specimen from the cylindrical blade requires time and effort, necessitating an interruption to the cutting process, reducing cutting efficiency and increasing cutting costs. Furthermore, if the separation of the test specimen requires a complex configuration or additional processes, cutting costs will increase even further. Test specimens stuck inside the cylindrical blade must be carefully and safely removed without damage, deformation, or deterioration of quality, and without touching the cutting edge of the cylindrical blade, which requires removing the cylindrical blade from the press mechanism. The inventors of the present disclosure have developed a test piece cutting device in which a flat pusher elastically pushes out the test piece via an elastic body (see Patent Document 1). However, for example, when cutting a thick or hard test substrate, if the test piece becomes firmly stuck and bitten inside the cylindrical blade, it is difficult to push the test piece out of the cylindrical blade using the elastic force of an elastic body such as a coil spring. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-066073 Summary of the Invention [Problem to be solved by the invention]

[0005] The present disclosure was developed with the aim of further eliminating the above-mentioned drawbacks, and one of the objects of the present disclosure is to provide a test piece cutting device that has a simple structure and is low cost, and can separate the test piece from the cylindrical blade after cutting. The description of the objectives and problems of the present disclosure does not preclude the existence of other objectives and problems. Furthermore, the embodiments of the present disclosure do not necessarily solve all of these problems. Furthermore, problems other than these may be extracted from the description of the specification, drawings, and claims of the present disclosure. [Means for solving the problem]

[0006] A test piece cutting device according to one aspect of the present disclosure includes a receiving table on which a test substrate is placed, a blade mechanism that cuts the test substrate placed on the receiving table with a cylindrical blade, a push-out mechanism that pushes the cut test piece out of the cylindrical blade, and a press mechanism that moves the blade mechanism in a first direction, wherein the blade mechanism is connected to the press mechanism and includes a cylindrical blade that cuts the test substrate into test pieces, and the push-out mechanism includes a push-out section that extends into the cylindrical blade and pushes the cut test piece out of the cylindrical blade, and a stopper section that stops the push-out section; the push-out portion has a first contact portion that contacts the test piece and a second contact portion that contacts the stopper portion, and a locking portion that locks the push-out portion between the first contact portion and the second contact portion so that the push-out portion can move freely in the first direction; When the press mechanism moves the cylindrical blade away from the receiving base after cutting the test piece, the pushing portion pushes the test piece out of the cylindrical blade. [Effects of the Invention]

[0007] The above-described configuration has the advantage that the test piece after cutting can be separated from the cylindrical blade with a simple structure and at low cost. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic side view of a test strip cutting device according to one embodiment of the present disclosure. [Figure 2]FIG. 2 is a schematic front view of the test piece cutting device shown in FIG. [Figure 3] FIG. 10 is a schematic perspective view showing the test piece in the cylindrical blade after cutting and the punched test substrate. [Figure 4] FIG. 2 is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism at one stage (raised position) of cutting the test substrate. [Figure 5] FIG. 10 is a schematic cross-sectional view showing the blade mechanism, the extrusion mechanism, and the press mechanism in another scene (the extrusion section and the position where the inner plate contacts the test substrate) when cutting the test substrate. [Figure 6] FIG. 10 is a schematic cross-sectional view showing the blade mechanism, the extrusion mechanism, and the press mechanism in another scene (cutting position) when cutting the test substrate. [Figure 7] FIG. 10 is a schematic cross-sectional view showing the blade mechanism, the extrusion mechanism, and the press mechanism in another stage of cutting the test substrate (the process of raising the blade mechanism after cutting). [Figure 8] FIG. 10 is a schematic cross-sectional view showing the blade mechanism, the extrusion mechanism, and the press mechanism in another scene when cutting the test substrate (at the position where the extrusion part contacts the stopper part and the test piece). [Figure 9] FIG. 10 is a schematic cross-sectional view showing the blade mechanism, the extrusion mechanism, and the press mechanism in another state where the test substrate is cut (the extrusion mechanism has extruded the test piece). DETAILED DESCRIPTION OF THE INVENTION

[0009] The present disclosure may be specified by the following configurations and features. A test piece cutting device according to one embodiment of the present disclosure comprises a receiving table on which a test substrate is placed, a blade mechanism that cuts the test substrate placed on the receiving table with a cylindrical blade, an extrusion mechanism that pushes the cut test pieces out of the cylindrical blade, and a press mechanism that moves the blade mechanism in a first direction, wherein the blade mechanism is connected to the press mechanism and has a cylindrical blade that cuts the test substrate into test pieces, the extrusion mechanism has an extrusion section that extends into the cylindrical blade and pushes the cut test pieces out of the cylindrical blade, and a stopper section that stops the extrusion section, and when the press mechanism moves the cylindrical blade away from the receiving table after the test pieces have been cut, the extrusion section pushes the test pieces out of the cylindrical blade.

[0010] The above configuration has the advantage of being simple and low-cost, allowing the test piece to be separated from the cylindrical blade after cutting. Conventional cutting devices and methods require a test piece cutting mechanism (cutting process) and a separation mechanism (separation process) for removing the test piece from the cylindrical blade. In contrast, the present disclosure has a unique structure and configuration that uses the movement of the cylindrical blade away from the receiving base after cutting to push the test piece out of the cylindrical blade. This allows the test piece to be separated from the cylindrical blade during the process of moving the cylindrical blade away from the receiving base after cutting, eliminating the need for the separate process of removing the test piece from the cylindrical blade, as previously required. Therefore, cutting efficiency can be significantly improved by eliminating the time, effort, and interruption of cutting required to remove the test piece from the cylindrical blade. This can be achieved with a simple structure that utilizes the movement of the cylindrical blade away from the receiving base of the press mechanism, eliminating the need for additional power or energy, and reducing cutting costs.

[0011] In addition to the above, a test strip cutting device according to another embodiment of the present disclosure has a pusher that can be arranged to move freely in a first direction. The above configuration has the advantage that the pusher can expand the range of test strips that can be pushed out by the pusher, and can press different test strips according to their thickness, material, degree of clogging, etc.

[0012] In addition to the above, another embodiment of the test piece cutting device according to the present disclosure further includes a blade mechanism including a first plate connected to a press mechanism, a cylindrical blade fixed to the first plate and having a cylindrical cutting edge at its lower end for cutting the test substrate into test pieces, and the first plate having a through hole through which the pusher is inserted, allowing the pusher inserted in the through hole to be movably positioned in a first direction. This configuration has the advantage of being able to separate the cut test piece from the cylindrical blade at low cost with a simple structure. This is because the first plate has a through hole through which the pusher is inserted, and the pusher inserted in the through hole has a simple structure that allows the pusher to be positioned in an appropriate position and orientation. The pusher inserted and locked in the through hole is positioned in a vertical orientation at a lower position within its movable range due to its own weight. After cutting, the pusher is lifted by the test piece inside the cylindrical blade as it moves away from the receiving base, and is stopped by a stopper to push out the test piece.

[0013] In addition to the above, a test piece cutting device according to another embodiment of the present disclosure has an extrusion mechanism having an adjustment unit that adjusts the position of the extrusion unit, and the adjustment unit can move the extrusion unit in the first direction to a distance greater than the thickness of the test substrate. The above configuration has the advantage that the adjustment unit adjusts the position, extrusion amount, and degree of the extrusion unit according to, for example, the thickness, material, and degree of clogging of the test piece, thereby effectively utilizing the movement of the cylindrical blade away from the receiving base after cutting by the press mechanism, thereby allowing the test piece to be smoothly extruded without degrading its quality.

[0014] In addition to the above-described features, a test piece cutting device according to another embodiment of the present disclosure may have a pusher portion having a first contact portion that contacts the test piece and a second contact portion that contacts the stopper portion, and a locking portion that locks the pusher portion so that it can move freely in the first direction between the first contact portion and the second contact portion. The above configuration has a simple structure in which the locking portion locks the pusher portion so that it can move freely in the first direction, and has the advantage that the pusher portion can be positioned in an appropriate position and attitude.

[0015] In addition to the above aspects, a test piece cutting device according to another embodiment of the present disclosure can have the extrusion portion and the stopper portion arranged in a straight line in the first direction. The above configuration has a simple structure in which the extrusion portion and the stopper portion are arranged in a straight line in the first direction, and has the advantage that, after cutting, the movement of the press mechanism as the cylindrical blade moves away from the receiving base can be effectively utilized to press the test piece against the extrusion portion and increase the pressing force of the extrusion portion. "The extrusion portion and the stopper portion arranged in a straight line in the first direction" includes cases in which the extrusion portion extends linearly in the first direction and abuts against the stopper portion on the same straight line, and cases in which the contact between the extrusion portion (second abutment portion) and the stopper portion, the contact between the extrusion portion (first abutment portion) and the test piece, and the extrusion portion (extending portion) have portions arranged in a straight line in the first direction.

[0016] In addition to the above-described features, a test piece cutting device according to another embodiment of the present disclosure has a press mechanism that moves the cylindrical blade in a direction away from the receiving base while the pushing portion is in contact with the stopper portion and the test piece, so that the pushing portion can push out the test piece inside the cylindrical blade. The above configuration has the advantage that the test piece can be pressed against the pushing portion by effectively utilizing the movement of the cylindrical blade away from the receiving base after cutting by the press mechanism, and the pushing portion can press the test piece.

[0017] In addition to the above-described features, a test piece cutting device according to another embodiment of the present disclosure can be configured such that the lowest part of the extrusion portion protrudes from the cylindrical blade. This configuration has the advantage that the test substrate can be safely set in the raised position before cutting. Furthermore, this configuration also has the advantage that the test piece inside the cylindrical blade can stably lift the extrusion portion and contact the stopper portion, and the extrusion portion in the protruding position supports the test substrate during cutting, suppressing deformation and contributing to improved cutting accuracy.

[0018] In addition to the above-described features, a test piece cutting device according to another embodiment of the present disclosure can have an inner plate in which the pushing section is disposed inside the cylindrical blade and has a pressing surface that presses the test piece. The above configuration has the advantage that the inner plate can apply pressure evenly over a wide pressing surface (area), reducing the pressing pressure and increasing the pressing force while avoiding concentration of pressure on the test area and excessive pressing, allowing for smooth extrusion.

[0019] In addition to the above-described features, a test piece cutting device according to another embodiment of the present disclosure can have a stopper portion connected to a press mechanism. The above-described configuration has the advantage that the stopper portion can be stably fixed by connecting to the press mechanism, and the stopping, pressing position, and posture of the pressing portion can be stabilized.

[0020] In addition to the above-described aspects, a test piece cutting device according to another embodiment of the present disclosure can have a push-out mechanism including a pair of push-out sections arranged at a distance from each other and a pair of stopper sections that stop the pair of push-out sections at a stop position. The above configuration has the advantages of increasing the number and area of contact between the pair of push-out sections and the test piece, reducing pressure, enabling uniform contact and pressing at the spaced positions, and allowing the pair of stopper sections to support and stop the pair of push-out sections, respectively. The above configuration has the advantages of allowing the push-out sections and stopper sections to be positioned without interfering with the connection between the press mechanism and the blade mechanism, and allowing the blade mechanism and the push-out sections to be positioned without interfering with each other's movement in the first direction.

[0021] The present invention will be described in detail below with reference to the drawings. In the following description, terms indicating specific directions or positions (e.g., "upper," "lower," and other terms including these terms) will be used as necessary. However, the use of these terms is intended to facilitate understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. Furthermore, parts that appear with the same reference numerals in multiple drawings indicate the same or equivalent parts or components. Furthermore, the embodiments shown below are specific examples of the technical concept of the present invention and are not intended to limit the present invention thereto. Furthermore, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described below are intended as examples and are not intended to limit the scope of the present invention thereto. Furthermore, the content described in one embodiment or example can also be applied to other embodiments or examples. Furthermore, the sizes and positional relationships of components shown in the drawings may be exaggerated for clarity of explanation. The up and down directions are specified in the drawings. (Embodiment 1)

[0022] 1, 2, and 4 show a test piece cutting device 100 according to a first embodiment. The cutting device 100 shown in the figures cuts a test substrate 6 into test pieces 7 and includes a receiving table 30 on which the test substrate 6 is placed, a blade mechanism 1 that cuts the test substrate 6 placed on the receiving table 30 into test pieces 7, a push-out mechanism 10 that pushes the cut test pieces 7 out of a cylindrical blade 2, and a press mechanism 20 that moves the blade mechanism 1 in a first direction. The first direction in the present disclosure refers to the direction in which the press mechanism 20 moves the blade mechanism 1 (cylindrical blade 2). For example, the first direction in FIG. 1 and other figures refers to the vertical direction and includes a push-down direction (a downward direction) in which the cylindrical blade 2 approaches the receiving table 30 and a direction (an upward direction) in which the cylindrical blade 2 moves away from the receiving table 30. (30 cradles)

[0023] The receiving stand 30 has a cutting surface 31 on which the test substrate 6 is placed in a predetermined position and cut. The cutting surface 31 is shaped to fit the test substrate 6 and is provided on the top surface of the receiving stand 30. The cutting surface 31 in FIGS. 1 and 2 is a smooth, flat surface that is horizontally positioned, and the test substrate 6 is placed in a horizontal position. The receiving stand 30 can be made of metal, or can be made entirely or partially of a material other than metal, for example, its surface can be made of plastic or rubber. As shown in FIGS. 1 and 2, a buffer sheet 32 is placed on the cutting surface 31 of the metal receiving stand 30. The buffer sheet 32 allows the test substrate 6 to be punched into a predetermined shape while preventing damage to the cutting edge 2a of the blade mechanism 1. The buffer sheet 32 is, for example, a plastic sheet with a thickness of 1 mm to 5 mm. The receiving base 30, which has a buffer sheet 32 laminated on its upper surface, can be used to neatly cut the entire circumference of the test piece 7 from the test substrate 6 by bringing the cutting edge 2a of the blade mechanism 1 into close contact with the buffer sheet 32 or by inserting the cutting edge 2a of the blade mechanism 1 into the surface of the buffer sheet 32 while punching the test substrate 6 with the blade mechanism 1. However, it is not necessary to place a plastic buffer sheet 32 on the upper surface of the receiving base 30. Instead of the plastic buffer sheet 32, a buffer sheet 32 other than plastic that is cut by the cutting edge 2a but does not damage the cutting edge 2a, such as a metal softer than the receiving base 30 such as brass or lead, can be laminated. Alternatively, the cutting edge 2a can be brought close to or into contact with the cutting surface 31 of the receiving base 30 without laminating a buffer sheet 32, and the test substrate 6 can be punched and cut. (Press mechanism 20)

[0024] The press mechanism 20 moves the blade mechanism 1 in a first direction. The press mechanism 20 moves the blade mechanism 1 in the first direction within the stroke range, and in Figures 4 and 6, the uppermost position of the cylindrical blade 2 is the raised position before cutting (Figures 1 and 4), and the lowermost position is the cutting position (Figure 6). The difference between the raised position and the cutting position of the cylindrical blade 2 is the movable distance (m). The press mechanism 20 moves the blade mechanism 1 back and forth between the raised position and the cutting position, and returns to the raised position to complete cutting. The press mechanism 20 moves (lowers) the cylindrical blade 2 from the raised position farthest from the receiving base 30 in a direction approaching the receiving base 30, cuts the test substrate 6 at the cutting position closest to the receiving base 30, and after cutting, moves (raises) in a direction away from the receiving base 30 and returns to the initial raised position (Figures 4 to 9). The press mechanism 20 in Figures 1 and 2 moves the blade mechanism 1 up and down in the vertical direction relative to the test substrate 6, which is placed in a horizontal position, pushing down the blade mechanism 1 to cut the test substrate 6, and after cutting, lifts the blade mechanism 1 and moves it in a direction away from the receiving base 30 (test substrate 6).

[0025] The press mechanism 20 illustrated in FIGS. 1 and 2 includes a connecting portion 22 connected to the blade mechanism 1 and a cylinder 21 that reciprocates the blade mechanism 1 connected via the connecting portion 22 in a first direction. In this press mechanism 20, the cylinder 21 is arranged in a vertical position and is movable up and down, with the lower end of the cylinder 21 connected to the center of the first plate 3. The press mechanism 20 may be either an automatic or manual type. To facilitate understanding of the movement of each component, the press mechanism 20 illustrated in FIGS. 1 and 2 merely exemplifies a manual type in which the blade mechanism 1 is moved in the first direction via the cylinder 21 that is linked to the operation of the handle 23, and does not in any way specify the structure of the press mechanism 20. The press mechanism 20 may use any structure that moves the connected blade mechanism 1 in the first direction, including, for example, a hydraulic, pneumatic, or mechanical type. The press mechanism 20 can lower the cylindrical blade 2 to the cutting position to cut the test piece 7, but the greater the press pressure used to cut the test substrate 6, the more firmly the cut test piece 7 becomes stuck in the cylindrical blade 2, causing it to become jammed and making it more difficult to remove. The press mechanism can, for example, connect the lower end of a freely extendable rod possessed by a cylinder to the first plate, and with the cylinder extending and retracting the extendable rod, the blade mechanism can reciprocate up and down while maintaining a horizontal position.

[0026] The press mechanism 20 can move the cylindrical blade 2 a distance (m) that is equal to or greater than the separation distance (d1, FIG. 6) between the second contact portion 11b and the stopper portion 14 at the cutting position. The press mechanism 20 can move the cylindrical blade 2 in a direction away from the receiving base 30 after cutting, to a distance that is equal to or greater than the separation distance (d1) between the second contact portion 11b and the stopper portion 14 at the cutting position. With the above configuration, when the pushing portion 11 is in contact with the stopper portion 14 and the test piece 7, the press mechanism 20 can further move the cylindrical blade 2 in a direction away from the receiving base 30 (a direction approaching the stopper portion 14), and press the test piece 7 inside the cylindrical blade 2 against the pushing portion 11 (first contact portion 11a). (Test substrate 6, test piece 7)

[0027] Test substrates 6 are used for a variety of purposes. The test substrates 6 are cut into test pieces 7 of predetermined dimensions and shapes, each having a test area 7X. Various tests, such as tensile tests, impact tests, burst tests, and tear tests, are conducted based on the standards. This disclosure does not specify the material, thickness, or shape of the test substrate 6, but includes all test substrates 6 used for tensile tests and the like. Test substrates 6 include, for example, one or more of plastic, rubber, vinyl, paper, high-performance fibers such as metal carbon fiber, aramid fiber, SIC fiber, and glass fiber, or prepregs (CFRP, CFRTP). Test substrates 6 can be made of flexible materials as well as inorganic materials with little flexibility, such as ceramics. The blade mechanism 1 can punch and cut the test substrate 6 with the cylindrical blade 2 without damaging it. The test piece 7 illustrated in FIG. 3 is dumbbell-shaped, with a narrow test area 7X in the center and wide chucking areas 7Y at both ends of the test area 7X. The test piece 7 is chucked by a testing machine at chucking areas 7Y at both ends, and the tensile strength of the test area 7X cut to a specific width is measured. However, the present disclosure does not specify the shape or dimensions of the test piece 7 to be cut, and the test piece 7 can have any shape or size according to regulations. (Cutting mechanism 1)

[0028] The blade mechanism 1 cuts the test substrate 6 placed on the receiving table 30 into test pieces 7 with a cylindrical blade 2. The blade mechanism 1 shown in Figures 2 and 4 includes a first plate 3 connected to the press mechanism 20, and a cylindrical blade 2 connected to the first plate 3 and cutting the test substrate 6 into test pieces 7. The cylindrical blade 2 has a cylindrical cutting edge 2a at its lower end that cuts the test substrate 6 into test pieces 7, and can cut the test substrate 6 into a dumbbell shape or other predetermined shape. (Cylindrical blade 2)

[0029] The cylindrical blade 2 can cut test specimens 7 of various shapes by using the shape of the cutting edge 2a as the outer shape of the test specimen 7 to be cut. The cylindrical blade 2 illustrated in FIG. 3 cuts a test substrate 6 into a dumbbell-shaped test specimen 7. It has a pair of long blades that cut both edges of the long sides of the test specimen 7, and a pair of short blades connected to both ends of the long blades that cut both edges of the short sides of the test specimen 7. The pair of long blades includes a test region cutting blade 2X that cuts both sides of the test region 7X, and a chucking region cutting blade 2Y that cuts both sides of the chucking region 7Y. The cylindrical blade 2 is hollow and has an internal hollow portion. However, this disclosure does not limit the test specimen 7 to a dumbbell shape; the test specimen 7 can have any shape depending on the specification and test.

[0030] The cylindrical blade 2 can be manufactured by bending and welding a metal plate, for example, 2 mm to 10 mm thick, into a cylindrical shape, or by cutting a metal block into a cylindrical shape using a method such as electrical discharge machining. The cylindrical blade 2 is manufactured from a hardenable steel material, preferably carbon steel, which has excellent workability. The carbon content of the carbon steel is adjusted to an optimum value taking into account the required hardness and brittleness. Carbon steel can be made harder by increasing the carbon content. However, since a high carbon content increases brittleness, carbon steel with a carbon content of, for example, 0.4% to 1.4%, preferably 0.45% to 0.7%, is used.

[0031] The cylindrical blade 2 has an outer cutting surface at the lower end of the cylindrical outer surface, forming a single-edged cutting edge 2a. The cylindrical blade 2 can have the cutting edge 2a formed by grinding the lower end of the cylindrical outer surface and the cylindrical inner surface with a whetstone or file. The cutting edge 2a is formed by grinding the lower end of the cylindrical outer surface. The single-edged cutting edge 2a can start cutting the test substrate 6 to a predetermined size and shape, but as the thickness of the test substrate 6 increases, it may become narrower at the bottom and wider at the top, making it difficult to push out from the cylindrical blade 2. In addition, the single-edged cutting edge 2a can have a correcting cutting surface along the lower end on the inner surface side that is narrower in vertical width than the outer cutting edge, allowing the cutting edge 2a to be positioned more eccentrically toward the outer periphery than the cylindrical inner surface.

[0032] The first plate 3 in FIGS. 3 and 4 is connected and fixed to the top of the cylindrical blade 2 and closes the upper opening. The first plate 3 in the figures has a through hole 4 through which the extrusion portion 11 (extension portion 11c) is inserted, and the extrusion portion 11 inserted therethrough can be moved freely in a first direction. The through hole 4 is slightly larger than the outer diameter of the extension portion 11c inserted into the cylindrical blade 2 and smaller than the outer diameters of the locking portion 16 and the second abutment portion 11b, allowing it to be locked by the locking portion 16. The blade mechanism 1 illustrated in FIG. 4 is connected to the press mechanism 20 via the first plate 3, but the blade mechanism 1 can be connected to the press mechanism 20 using a member or structure other than the first plate 3, and the blade mechanism 1 can also be configured without the first plate 3. (Extrusion mechanism 10)

[0033] The push-out mechanism 10 pushes the cut test piece 7 from the cylindrical blade 2. The push-out mechanism 10 has a push-out section 11 that pushes the test piece 7 from the cylindrical blade 2 and a stopper section 14 that stops the push-out section 11 at a stopping position. The push-out section 11 has a first contact section 11a that contacts the test piece 7 in the cylindrical blade 2 and a second contact section 11b that contacts the stopper section 14. The push-out section 11 in Figure 4 has the first contact section 11a at its lower end and the second contact section 11b at its upper end. The push-out section 11 can push out the test piece 7 from the cylindrical blade 2 by contacting both the first contact section 11a and the second contact section 11b. The stopper section 14 determines the stopping position and posture of the push-out section 11.

[0034] During extrusion, when the extrusion section 11 of the extrusion mechanism 10 presses the test piece 7, one of the second contact sections 11b of the extrusion section 11 abuts against the stopper section 14 and stops, while the other, first contact section 11a abuts against the test piece 7. The extrusion section 11 abutting against both the stopper section 14 and the test piece 7 is clamped between them, placing them in a tensioned state. The extrusion section 11 in FIG. 8 maintains the stopped position where it abuts against the stopper section 14 and stops, and the test piece 7 abuts against it, placing them in a tensioned state. Furthermore, after cutting, the press mechanism 20 moves the cylindrical blade 2 away from the receiving base 30, i.e., the cylindrical blade 2 moves (rises) in a direction approaching the stopper section 14. This causes the test piece 7 inside the cylindrical blade 2 to be pressed against the extrusion section 11 (action), and the extrusion section 11 presses the test piece 7 (reaction), eliminating the jammed state and pushing it out of the cylindrical blade 2. As the cylindrical blade 2 moves (rising) away from the receiving base 30 after cutting, the press mechanism 20 presses the test piece 7 inside the cylindrical blade 2 against the push-out portion 11 more strongly, the amount of pressing increases, and the push-out portion 11 presses the test piece 7 more strongly and the amount of pressing increases, so the push-out portion 11 can press and push out the test piece 7 depending on the degree of clogging of the test piece 7. The push-out mechanism 10 can utilize and convert the movement of the cylindrical blade 2 in the first direction away from the receiving base 30 (approaching the stopper portion 14) after cutting into a force that the push-out portion 11 uses to press the test piece 7 inside the cylindrical blade 2. The cutting device 100 described above has a unique configuration in which the pusher 11 presses the test piece 7 inside the cylindrical blade 2 by utilizing the movement of the press mechanism 20 as the cylindrical blade 2 moves away from the receiving base 30 after cutting, and the test piece 7 can be separated from the cylindrical blade 2 during the process (partway) of the cylindrical blade 2 moving away from the receiving base 30 after cutting until it reaches the raised position, and the pushing-out of the test piece 7 can be completed when the cylindrical blade 2 moves to the raised position. Therefore, there is no need for a separate separation process, operation, or separation mechanism for pushing the test piece out of the cylindrical blade after the cylindrical blade moves to the raised position after cutting, which was required in conventional cutting devices and cutting methods, saving time and effort. Moreover, by utilizing the movement of the press mechanism 20 as the cylindrical blade 2 moves away from the receiving base 30, no additional power or energy is required, reducing costs and significantly improving cutting efficiency.

[0035] The push-out portion 11 in FIGS. 4 to 7 is arranged to be movable in the first direction between the stopper portion 14 and the test substrate 6 in the cylindrical blade 2 when the push-out portion 11 is not pushing out the test piece 7. When the push-out portion 11 is not pushing out the test piece 7, First contact part 11a The push-out portion 11 is disposed in a non-contact state in which the first contact portion 11b does not contact the test piece 7 and / or the second contact portion 11b does not contact the stopper portion 14, and is thus freely movable in the first direction. However, the push-out portion 11 does not move in the first direction, and can be connected and fixed to the stopper portion 14 in a contact state.

[0036] The extrusion portion 11 in FIG. 4 has a locking portion 16 that locks the extrusion portion 11 so that it can move freely in the first direction, and the extension portion 11c is inserted into the through-hole 4 of the first plate 3, and the extrusion portion 11 is locked by the locking portion 16, hanging down under its own weight at a lower position within its movable range, and is arranged to be movable in the first direction. The locking portion 16 locks, hangs down, and allows the extrusion portion 11 to be stably arranged in a vertical position at a lower position within its movable range under its own weight, with the locking portion 16 in the locked, hanging, and hanging state. The locking portion 16 in FIG. 4 can lock the extrusion portion 11 as a nut disposed between the first abutment portion 11a and the second abutment portion 11b, and the locking height can be easily adjusted by moving the nut up and down on the male thread portion of the extension portion 11c. In Figures 4 and 5, the push-out portion 11, which is engaged with the locking portion 16, has a portion of the extension portion 11c protruding from the first plate 3 toward the stopper portion 14, and the second abutment portion 11b is positioned at a protruding height (n1). When not being pushed out, the push-out portion 11 is arranged to be movable in the first direction except when engaged with the locking portion 16, and can first move in the upward direction approaching the stopper portion 14 on the non-locking side. Furthermore, when the locking portion 16 is separated from the first plate 3, the push-out portion 11 can move in the first direction in both the upward and downward directions (toward the receiving base 30). At the cutting position in Figure 6, the push-out portion 11 is lifted by an amount (o) by the test piece 7 in the cylindrical blade 2, and the protruding height of the second abutment portion 11b becomes n2 (= n1 + o). In FIG. 7, the cylindrical blade 2 rises with the push-out portion 11 lifted by the test piece 7, and in FIG. 8, the push-out portion 11 is stopped in a tensioned state with the stopper portion 14 in contact with the test piece 7, and the cylindrical blade 2 is further raised. The cylindrical blade 2 is allowed to rise (move in the first direction) by the amount (o) that the push-out portion 11 is lifted by the test piece 7, and the test piece 7 inside the cylindrical blade 2 is pressed against the first abutment portion 11a, which can press the test piece 7. The locking portion 16 can be integral with the first abutment portion 11a or the second abutment portion 11b, or the first abutment portion 11a or the second abutment portion 11b can be the locking portion 16.

[0037] The extrusion portion 11 in FIG. 4 has an extension portion 11c extending in a first direction, a first contact portion 11a where the lower end of the extension portion 11c contacts the test piece 7, and a second contact portion 11b where the upper end of the extension portion 11c contacts the stopper portion 14. In the extrusion portion 11 in FIG. 4, a portion of the extension portion 11c extends into the cylindrical blade 2, with the first contact portion 11a located inside the cylindrical blade 2 and the second contact portion 11b located outside the cylindrical blade 2. Although the extrusion portion 11 in FIG. 4 is a bolt, any shape, structure, or material that can extrude the test piece 7 can be used. The extrusion portion 11 (extension portion 11c) can be columnar, bar-shaped, cylindrical, rod, shaft, plate-shaped, bolt-shaped, or the like, and the outer cross-sectional shape can be circular, elliptical, rectangular, polygonal, L-shaped, T-shaped, cross-shaped, or the like. The extrusion portion 11 can have irregularities, grooves, steps, threads, etc., and can also be provided with reinforcement such as ribs and rounded corners. The extrusion portion 11 is preferably made of metal. A metal extrusion portion 11 does not change length (L) and can firmly maintain a tensioned state pressed against the stopper portion 14 and the test piece 7, and the upward movement of the cylindrical blade 2 including the test piece 7 can be reflected and used to press the test piece 7 without loss. However, the extrusion portion 11 can have an elastic material that can elastically deform, such as resin, and the elasticity can mitigate the impact of contact and the concentration of pressure.

[0038] The first contact portion 11a and the second contact portion 11b can be larger than the outer diameter (diameter) of the extension portion 11c. In FIG. 4, the second contact portion 11b is a screw head. The screw head can abut against the stopper portion 14 in a flat plane, stabilizing the stopping position and reducing the contact pressure. In FIG. 4, the first contact portion 11a is an inner plate 12. The inner plate 12 in FIG. 4 is disposed inside the cylindrical blade 2 and has a pressing surface 12a that contacts and presses the test piece 7 (test substrate 6) in a flat plane. The inner plate 12 can abut against the test piece 7 in a flat plane with the wide pressing surface 12a, evenly pressing the test piece 7 and reducing the pressing pressure. This prevents excessive pressure from being concentrated on the test area 7X. The inner plate 12 in FIG. 4 has a peripheral shape that conforms to the inner surface of the cylindrical blade 2, with a gap between the peripheral edge and the inner surface of the cylindrical blade 2, and is arranged to be movable in the first direction. In FIG. 4, the pusher 11 is arranged in a protruding position where the lower surface (lowest part) of the inner plate 12 protrudes from the cutting edge 2a of the cylindrical blade 2 when in the raised position. In FIG. 4, the thickness of the inner plate 12 is set to be equal to or greater than the protruding width (T), making it difficult for fingertips to come into contact with the cutting edge 2a, and allowing the test substrate 6 to be safely and quickly set on the receiving table 30. When the pusher 11 is in the raised position, the second contact portion 11b can be arranged to be in contact or non-contact with the stopper portion 14. When the second contact portion 11b is not in contact with the stopper portion 14 and the pusher 11 hangs down under its own weight while being movable in the first direction, it can move upward, and the movement of the inner plate 12 in the protruding position can be easily confirmed. When the second contact portion 11b is connected and fixed to the stopper portion 14 in a state of contact with the stopper portion 14, the pushing portion 11 cannot move upward, and the inner plate 12 in the protruding position can ensure greater safety.

[0039] The pusher 11 is disposed between the stopper 14 and the test substrate 6 on the receiving stand 30. The length (L) of the pusher 11 is equal to or less than the distance (L1) between the stopper 14 and the test substrate 6 on the receiving stand 30, and is long enough to press and push out the test piece 7 inside the cylindrical blade 2 before the cylindrical blade 2 rises to the raised position after cutting. The length (L) of the pusher 11 in FIG. 4 is equal to or greater than the height (H) of the cylindrical blade 2. The pusher 11 can have the first contact portion 11a contact the test piece 7 inside the cylindrical blade 2, while the second contact portion 11b is stopped by contacting the stopper 14 outside the cylindrical blade 2. The pusher 11 can have the first contact portion 11a (inner plate 12) disposed in the protruding position. The pushing portion 11 penetrates the cylindrical blade 2 and the first contact portion 11a presses and protrudes beyond the cutting edge 2a, thereby enabling the test piece 7 inside the cylindrical blade 2 to be pushed out reliably.

[0040] The extrusion mechanism 10 in Figure 4 has an adjustment unit 15 that adjusts the position of the extrusion unit 11. The locking unit 16 can be made adjustable by moving the locking position, making it the adjustment unit 15. The extrusion unit 11 is connected to and locked to the first plate 3 so that it can be adjusted and moved freely in the first direction, and can accommodate a variety of test substrates 6. Figure 4 shows a nut that serves as both the adjustment unit 15 and the locking unit 16, and locks the position of the extrusion unit 11 so that it can be adjusted. The nut can be easily fine-tuned and moved. The adjustment unit 15 and the locking unit 16 can also be provided separately. The adjustment unit 15 can set and adjust the arrangement of the first contact portion 11a and the second contact portion 11b, the contact position, the movement range of the extrusion portion 11, the amount of protrusion of the first contact portion 11a (inner plate 12) from the cutting edge 2a when not extruding before cutting, the locking position of the extrusion portion 11, the range of the extrusion portion 11 that can be lifted by the test piece 7, the extrusion amount of the extrusion portion 11 (first contact portion 11a), etc. The adjustment unit 15 arranges the extrusion portion 11 to be movable in the first direction at least to a thickness (t) of the test substrate 6 or more, so that the test piece 7 can be reliably extruded from the cylindrical blade 2. In Figure 4, the nut of the adjustment part 15 is placed between the first abutment part 11a and the second abutment part 11b, and for example, the nut can be tightened to place it on the second abutment part 11b side, thereby relatively raising the locking position and positioning the second abutment part 11b and the first abutment part 11a lower, or the nut can be loosened to place it on the first abutment part 11a side, thereby relatively lowering the locking position and positioning the second abutment part 11b and the first abutment part 11a higher.

[0041] The extrusion mechanism 10 can move the extrusion section 11 in the first direction within the range of the difference (L1 - L) between the distance (L1) between the stopper section 14 and the test substrate 6 on the receiving table 30 and the length (L) of the extrusion section 11, thereby expanding the range of test specimens 7 that can be extruded. The extrusion mechanism 10 can move the extrusion section 11 in the first direction to a distance equal to or greater than the thickness (t) of the test substrate 6 to extrude the test substrate 6 from within the cylindrical blade 2. The extrusion mechanism 10 can also set the extrusion section 11 in the first direction to a distance equal to or less than 8, 6, 5, 4, 3, or 2 times the thickness (t) of the test substrate 6, for example, so that the extrusion section 11 can stably contact the test specimen 7 and press the test specimen 7, avoiding or reducing unnecessary movement. The press mechanism 20 can move the cylindrical blade 2 in the first direction relative to the extrusion section 11, thereby pressing the test specimen 7 within the cylindrical blade 2 against the extrusion section 11. The press mechanism 20 can move the cylindrical blade 2 in the first direction to a distance greater than the thickness (t) of the test substrate 6 to extrude the test substrate 6 from within the cylindrical blade 2; for example, by moving the cylindrical blade 2 in the first direction to a distance less than 20 times, less than 15 times, less than 10 times, less than 8 times, or less than 5 times the thickness (t) of the test substrate 6, the test piece 7 can be stably contacted and pressed against the extrusion portion 11, and unnecessary movement can be avoided or reduced. (Stopper part 14)

[0042] The stopper portion 14 stops the extrusion portion 11 at a predetermined stopping position. The stopper portion 14 in FIG. 4 is arranged in a horizontal position perpendicular to the first direction. The stopper portion 14 in FIG. 4 abuts against the extrusion portion 11, which moves (rises) in the first direction together with the cylindrical blade 2, and can stop the extrusion portion 11 at the stopping position. As shown in FIG. 8, the extrusion portion 11 abutting against the stopper portion 14 stops in a stopped position without rising beyond the stopping position, but the cylindrical blade 2 abuts against the stopper portion 14 and can rise further without being stopped. The cylindrical blade 2 and the test piece 7 in the inner hollow portion rise further, and the extension length of the extrusion portion 11 into the cylindrical blade 2 increases (p1 in FIG. 8 < p2 in FIG. 9), allowing the extrusion portion 11 to press against the test piece 7 (FIGS. 8 and 9). As the cylindrical blade 2 moves upward relative to the extrusion portion 11, which is stopped by the stopper portion 14, the test piece 7 inside the inner hollow portion rises, and the first abutment portion 11a at the lower end of the extrusion portion 11 abuts against the test piece 7 and is lifted up, thereby increasing the pressure of the test piece 7 against the first abutment portion 11a, and the first abutment portion 11a can press against the test piece 7.

[0043] The stopper portions 14 are connected to and stably fixed to the frame, outer surface, support members, wall surfaces, and side surfaces of the press mechanism 20, enabling the extrusion portions 11 to be reliably stopped at a stop position. The pair of stopper portions 14 shown in FIGS. 1 and 2 are each firmly fixed to the side frames on both sides of the press mechanism 20 via connecting portions 17a and fixing portions 17b, enabling the abutting extrusion portions 11 to be stably and reliably stopped and supported at a predetermined position and posture. However, the stopper portions 14 can also be connected and fixed to the press mechanism 20 so as to be freely movable within a range that allows the extrusion portions 11 to be stopped at a predetermined stop position. The stopper portions 14 can have any structure that stops the extrusion portions 11 at a stop position, and the number and arrangement of the stopper portions 14 are appropriately determined depending on the number, length, shape, stop positions, etc. of the extrusion portions 11.

[0044] In the extrusion section 11 mechanism of FIG. 4, the extrusion section 11 and the stopper section 14 are arranged in a straight line in the first direction. The first abutment section 11a, the second abutment section 11b, the extension section 11c, and the stopper section 14 of the extrusion section 11 are arranged in a straight line, and the extrusion section 11 abuts against the stopper section 14 and the test piece 7 in the same straight line. This allows for a simple structure and effectively utilizes the movement of the cylindrical blade 2 moving away from the receiving base 30 (approaching the stopper section 14) after cutting by the press mechanism 20 without loss, thereby increasing the pressing force of the extrusion section 11 and enabling the extrusion section 11 to efficiently press the test piece 7. The inner plate 12 (first abutment section 11a) of FIG. 4 includes a portion that arranges the extrusion section 11 and the stopper section 14 in a straight line in the first direction.

[0045] The push-out portion 11 can be arranged connected to the stopper portion 14, and may have an integrated structure. The push-out portion 11 connected to and fixed to the stopper portion 14 can maintain a stable position and posture in a stopped state where the second abutting portion 11b is always in contact with the stopper portion 14, and can press the test piece 7 that is approaching or pressed against it.

[0046] The extrusion mechanism 10 has one or more extrusion sections 11 and a stopper section 14. The multiple extrusion sections 11 increase the number of presses that contact and press the test piece 7, expanding the pressing area and dispersing the pressure. This reduces the pressing pressure and prevents excessive pressure concentration, allowing the test piece 7 to be smoothly extruded. The extrusion mechanism 10 shown in Figures 2 and 4 has a pair of extrusion sections 11 and a pair of stopper sections 14. The pair of extrusion sections 11 shown in Figure 4 simultaneously contacts the multiple extrusion sections 11, allowing the test piece 7, particularly a long one, to be pressed more evenly while maintaining a horizontal position, and the inner plate 12 can press it evenly. The pair of extrusion sections 11 (extension sections 11c) shown in Figure 4 are each spaced apart at the ends other than the center, and the extension section 11c is connected to the first contact section 11a in the chucking region 7Y of the test piece 7. This configuration applies pressure via the extensions 11c connected to the chucking region 7Y, preventing excessive pressure on the test region 7X and resulting damage, deformation, and quality degradation. The pair of extrusion sections 11 in FIG. 4 includes extensions 11c (2), second abutment portions 11b (2), and a first abutment portion 11a of the inner plate 12. Each extension 11c is connected to the inner plate 12, and each extension 11c is connected to the inner plate 12 at a position where it abuts the chucking region 7Y. The extensions 11c can be fixed to the inner plate 12, for example, by screw fastening. For example, a strong pressure is required to push out a tightly packed test specimen 7. However, by evenly pressing the test specimen 7 with the pressing surface 12a of the inner plate 12, the pressure can be reduced, and the pressure can be increased while avoiding concentration of pressure on the test region 7X.

[0047] The blade mechanism 1 is connected to the press mechanism 20 between the pair of extrusion portions 11 (extension portions 11c). The blade mechanism 1 is connected in a horizontal position to a connection portion 22 of the press mechanism 20 at the center of the first plate 3 between the pair of extrusion portions 11. The extrusion portions 11 arranged on both sides of the connection portion 22 (center portion of the first plate 3) do not interfere with the connection between the blade mechanism 1 and the press mechanism 20 or the movement of the blade mechanism 1 in the first direction, and the connection between the first plate 3 and the press mechanism 20 does not interfere with the movement or pressing of the extrusion portion 11 in the first direction.

[0048] The stopper portions 14 are provided according to the number and arrangement of the contacting extrusion portions 11 (second contact portions 11b). Each pair of stopper portions 14 is contacted by a pair of extrusion portions 11 (second contact portions 11b), and each stops at a stop position. The pair of stopper portions 14 in FIG. 4 is arranged in a horizontal position at the same height, and the pair of extrusion portions 11 contacts them simultaneously, allowing them to be supported and stopped in a distributed manner. This is particularly useful together with the pair of extrusion portions 11 for long test pieces 7.

[0049] When the cylindrical blade 2 moves away (rising) from the receiving base 30 after cutting, the first contact portion 11a and the second contact portion 11b of the pushing portion 11 can contact the test piece 7 and the stopper portion 14 simultaneously or at different times. In the pushing portion 11 illustrated in FIGS. 4 to 9, when the cylindrical blade 2 rises, the first contact portion 11a first contacts the test piece 7 inside the cylindrical blade 2 after cutting, and then the second contact portion 11b contacts the stopper portion 14. The test piece 7 that has become stuck and bitten inside the rising cylindrical blade 2 first contacts the first contact portion 11a, and the pushing portion 11 is lifted with the test piece 7 in contact with the first contact portion 11a, and the rising cylindrical blade 2 raises the pushing portion 11 together with the test piece 7. The push-out portion 11 rises until the second abutment portion 11b abuts against the stopper portion 14, and then stops at the stop position when the second abutment portion 11b abuts against the stopper portion 14. With the above configuration, the test piece 7 inside the cylindrical blade 2, which rises at a low speed, can lift the push-out portion 11 while utilizing the movement of the cylindrical blade 2 after cutting by the press mechanism 20, moving away from the receiving table 30, and the second abutment portion 11b can stably abut against the stopper portion 14. However, the second abutment portion 11b of the push-out portion 11 can also abut against the stopper portion 14 first, and then the first abutment portion 11a can abut against the test piece 7, or the first abutment portion 11a and second abutment portion 11b can abut against the test piece 7 and the stopper portion 14 simultaneously.

[0050] The extrusion unit 11 presses the test piece 7 using the movement of the cylindrical blade 2 as it ascends and moves away from the support 30. Therefore, it begins pressing the test piece 7 and finishes extruding the test piece 7 before it reaches the ascending position. The extrusion unit 11 shown in Figures 4 to 9 presses the test piece 7 when the cylindrical blade 2 is near the ascending position. The extrusion unit 11 can adjust the extrusion position, degree of pressure, and movement speed by adjusting the distance from the ascending position to the pressing position where it starts pressing the test piece 7. This can be set according to the thickness of the test substrate 6, the required pressing force, and so on. For example, by moving the pressing position closer to the ascending position, the degree of pressure can be weakened and the extrusion width can be shortened, or by moving the pressing position away from the ascending position, the degree of pressure can be strengthened and the extrusion width can be lengthened. The press mechanism 20 lowers the cylindrical blade 2, cuts the material, and then ascends, stopping at the ascending position. The cylindrical blade 2 stops at the cutting position and then begins to rise. Because the distance between the cutting position and the rising position is short, the moving speed of the cylindrical blade 2 is slow, allowing the test piece 7 to be pressed against it and the pressure of the extrusion section 11 to be gradually increased. The cylindrical blade 2 also decelerates just before the rising position, allowing the pressure of the extrusion section 11 to be more gradual. As the cylindrical blade 2 moves slowly and decelerates near the rising position, the test piece 7 inside the cylindrical blade 2 is pressed against the extrusion section 11, gradually increasing the pressure on the test piece 7, preventing excessive pressure from suddenly increasing or concentrating. Furthermore, with the addition of surface contact by the inner plate 12, the extrusion section 11 applies sufficient and appropriate pressure to extrude the test piece 7 inside the cylindrical blade 2, allowing the test piece 7 to be smoothly extruded without damage, deformation, or deterioration of the test piece 7.

[0051] As shown in FIGS. 4 to 9, the cutting device 100 punches out the test substrate 6 to cut it into test pieces 7, and pushes the cut test pieces 7 out of the cylindrical blade 2. (1) The cylindrical blade 2 is placed in the raised position, and the test substrate 6 is set in a predetermined position. Before the start of cutting in FIG. 4, the press mechanism 20 places the cylindrical blade 2 in the raised position, and sets the test substrate 6 on the cutting surface 31 of the receiving stand 30. (2) The press mechanism 20 lowers the cylindrical blade 2. As shown in Figures 5 and 6, the press mechanism 20 gradually lowers the cylindrical blade 2 toward the cutting position. First, the lower surface of the inner plate 12 in the protruding position contacts the test substrate 6 (Figure 5). Next, the cutting edge 2a contacts the test substrate 6, starting cutting. The cylindrical blade 2 is then lowered to the cutting position to cut the test substrate 6 into test pieces 7 (Figure 6). In the figure, before the cutting edge 2a of the cylindrical blade 2 contacts the test substrate 6, the lower surface of the inner plate 12 in the protruding position first contacts the upper surface of the test substrate 6, and then the cutting edge 2a contacts the test substrate 6, starting cutting. As the cylindrical blade 2 cuts, the upper surface of the test substrate 6 inside the cylindrical blade 2 lifts the inner plate 12 (extrusion portion 11) upward. At the cutting position where the cylindrical blade 2 cuts the test piece 7, the test piece 7, which has entered the inner hollow portion of the cylindrical blade 2, lifts the inner plate 12 (extrusion portion 11) upward by the amount of its thickness (t) (Figure 6).

[0052] (3) The cylindrical blade 2 begins to rise. After cutting, when the press mechanism 20 raises the cylindrical blade 2, the test piece 7 that cannot fall under its own weight remains inside the cylindrical blade 2 and rises together with the cylindrical blade 2, and the inner plate 12 (extrusion portion 11) moves upward while being lifted by the test piece 7 (FIG. 7). (4) As the cylindrical blade 2 rises, the push-out portion 11 presses and pushes out the test piece 7 inside the cylindrical blade 2. The push-out portion 11 rises together with the test piece 7 inside the cylindrical blade 2, and as the cylindrical blade 2 reaches the raised position, the second abutment portion 11b abuts against the stopper portion 14, causing the push-out portion 11 to stop (Figure 8). The push-out portion 11 is clamped between the test piece 7 and the stopper portion 14, causing it to become stretched and stop in a stopped position, and the cylindrical blade 2 and the test piece 7 inside it continue to rise relative to the stopped push-out portion 11 (arrows in Figure 8). The push-out portion 11, which is in contact with the stopper portion 14, is not pushed up above the stop position, but on the other hand, as the cylindrical blade 2 rises, the test piece 7 moves in a direction approaching the stopper portion 14, and the test piece 7 inside the cylindrical blade 2 is pressed against the second abutment portion 11b. As it rises, the pressure increases, and as a reaction, the push-out portion 11 (first abutment portion 11a) presses against the test piece 7. The pressure continues until the blockage inside the cylindrical blade 2 is cleared, and the test piece 7 is pushed out (Figure 9). (5) The cylindrical blade 2 rises to the raised position. The test piece 7 has already been pushed out from inside the cylindrical blade 2, and the cutting process ends when the cylindrical blade 2 is raised to the raised position. The cut test piece 7 is collected from the receiving base 30, and the cylindrical blade 2 returns to the raised position it was in before cutting (1).

[0053] The above-described cutting device 100 for test specimens 7 uses the movement of the cylinder 21 as it raises the cylindrical blade 2 to push out and separate the test specimens 7 from within the cylindrical blade 2. Therefore, in order to separate the test specimens 7 stuck within the cylindrical blade 2, no additional work, process, or mechanism is required, such as removing the cylindrical blade 2 from the press mechanism 20 or pushing out the test specimens 7, thereby saving time and effort, significantly improving cutting efficiency, and reducing the cost of cutting the test specimens 7. The above-described cutting device 100 for test specimens 7 can complete the pushing out of the test specimens 7 from within the cylindrical blade 2 before the cylindrical blade 2 is raised to the raised position, eliminating the need to stop or interrupt the cutting work or process to push out the test specimens 7 from the cylindrical blade 2, and also eliminating the need to extend the cutting process time. The cutting device 100 can utilize the movement from the cutting position back to the raised position that inevitably occurs after cutting the test piece 7, and the movement of the cylindrical blade 2 away from (raising) the receiving base 30 with a simple structure, and does not require any additional electricity or power. [Industrial Applicability]

[0054] The present disclosure can be suitably used as a test piece cutting device that has a simple structure and can separate cut test pieces from a cylindrical blade at low cost. [Explanation of symbols]

[0055] 100...Cutting device 1...Cutting mechanism 2...Cylindrical blade 2a...Cutting edge 2X...Test area cutting blade 2Y...Chuck area cutting blade 3...First plate 4...Through hole 6...Test substrate 7...Test piece 7X…Test area 7Y...chucking area 10...Extrusion mechanism 11...Extrusion section 11a...first contact part 11b...Second contact part 11c...Extension part 12...Inner plate 12a...Pressing surface 14...Stopper part 15…Adjustment section 16...Latching part 17a...Connection part 17b…Fixed part 20...Press mechanism 21...Cylinder 22...Connection part 23...Handle 30…Cradle 31…Cut surface 32...Buffer sheet

Claims

1. a support for placing the test substrate; a blade mechanism that cuts the test substrate placed on the receiving stand with a cylindrical blade; an extrusion mechanism that extrudes the cut test piece from the cylindrical blade; a press mechanism that moves the blade mechanism in a first direction, The blade mechanism a cylindrical blade connected to the press mechanism for cutting the test substrate into test pieces; The extrusion mechanism an extrusion section extending into the cylindrical blade and extruding the cut test piece from the cylindrical blade; a stopper portion that stops the extrusion portion, The extrusion section a first contact portion that contacts the test piece; a second contact portion that contacts the stopper portion, a locking portion that locks the push-out portion movably in a first direction between the first contact portion and the second contact portion; When the press mechanism moves the cylindrical blade away from the receiving base after cutting the test piece, The test piece cutting device includes a push-out section that pushes the test piece out of the cylindrical blade.

2. The test strip cutting device according to claim 1, A test piece cutting device in which the stopper portion determines the stop position of the extrusion portion.

3. The test strip cutting device according to claim 1, The blade mechanism a first plate connected to the press mechanism; The cylindrical blade is fixed to the first plate, At the lower end, a cylindrical cutting edge is provided for cutting the test substrate into test pieces; The first plate is a through hole through which the extrusion portion is inserted, The test piece cutting device is configured so that the extrusion portion inserted into the through hole is freely movable in a first direction.

4. A support for placing a test substrate; a blade mechanism that cuts the test substrate placed on the receiving stand with a cylindrical blade; an extrusion mechanism that extrudes the cut test piece from the cylindrical blade; a press mechanism that moves the blade mechanism in a first direction, The blade mechanism a cylindrical blade connected to the press mechanism for cutting the test substrate into test pieces; The extrusion mechanism an extrusion section extending into the cylindrical blade and extruding the cut test piece from the cylindrical blade; a stopper portion that stops the extrusion portion, The extrusion mechanism an adjustment unit that adjusts the position of the extrusion unit; the adjustment unit is configured to dispose the extrusion unit so as to be movable in a first direction by a distance equal to or greater than the thickness of the test substrate, A test piece cutting device, wherein when the press mechanism moves the cylindrical blade away from the receiving base after cutting the test piece, the push-out section pushes the test piece out of the cylindrical blade.

5. A test piece cutting device according to claim 4, The extrusion section a first contact portion that contacts the test piece; a second contact portion that contacts the stopper portion, a locking portion that locks the push-out portion movably in a first direction between the first contact portion and the second contact portion; A test piece cutting device, wherein the adjustment portion and / or the locking portion is a nut disposed between the first abutment portion and the second abutment portion.

6. The test strip cutting device according to claim 1, The test piece cutting device has the push-out portion and the stopper portion arranged in a straight line in a first direction.

7. The test strip cutting device according to claim 1, The press mechanism includes: With the pusher portion in contact with the stopper portion and the test piece, The cylindrical blade is moved in a direction away from the cradle, The test piece cutting device has an extrusion section that extrudes the test piece from within the cylindrical blade.

8. The test strip cutting device according to claim 1, A test piece cutting device in which the lowermost portion of the extrusion portion is disposed at a protruding position where it protrudes from the cylindrical blade.

9. The test strip cutting device according to claim 1, The extrusion section The test piece cutting device further comprises an inner plate disposed inside the cylindrical blade and having a pressing surface for pressing the test piece.

10. The test strip cutting device according to claim 1, The test piece cutting device is configured such that the stopper portion is connected to the press mechanism.

11. 11. The test strip cutting device according to claim 1, The extrusion mechanism A pair of the extrusion portions arranged at a distance from each other; A test piece cutting device having a pair of stopper portions that stop the pair of extrusion portions at stop positions.

Images