A test specimen cutting device for cutting test substrates into test specimens.

Abstract

The simple structure allows for low-cost separation of the cut test piece from the cylindrical blade. [Solution] The system comprises a support 30 on which a test substrate 6 is placed, a blade mechanism 1 for cutting the test substrate 6 placed on the support 30 with a cylindrical blade 2, an extrusion mechanism 10 for pushing the cut test piece 7 out of the cylindrical blade 2, and a press mechanism 30 for moving the blade mechanism 1 in a first direction. The blade mechanism 1 is connected to the press mechanism 30 and includes a cylindrical blade 2 for cutting the test substrate 6 into a test piece 7. The extrusion mechanism 10 has 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. When the press mechanism 20 moves the cylindrical blade 2 away from the support 30 after cutting the test piece 7, 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 for cutting a sheet-like or plate-like test base material such as plastic, rubber, and metal into test pieces.

Background Art

[0002] Materials used for various applications are subjected to various tests such as tensile tests and impact tests based on standards such as JIS. For example, rubber used for tires, etc., is made into a sheet-like test base material of a predetermined thickness and cut into dumbbell-shaped test pieces in order to perform a tensile test and an impact test. The test base material is cut to dimensions that conform to the JIS standard in terms of thickness and outer shape and used for the tensile test.

[0003] A test piece cutting device having a cylindrical blade for cutting a test base material into a predetermined shape has been developed. The cylindrical blade can punch out and cut a test piece of a predetermined shape with one up-and-down movement. However, depending on the thickness, hardness, material, shape, etc. of the test material, the cut test piece may not fall by its own weight into the cylindrical blade and may get stuck inside the cylindrical blade. Removing, pushing out, and separating this test piece from the cylindrical blade requires time and effort and necessitates interrupting the cutting operation process, resulting in a decrease in cutting efficiency and an increase in cutting costs. Also, if a complicated configuration and additional processes are required for separating the test piece, it will lead to a further increase in cutting costs. The test piece stuck inside the cylindrical blade needs to be carefully and safely taken out without being damaged, deformed, or having its quality degraded and without touching the cutting edge of the cylindrical blade, which requires removing the cylindrical blade from the pressing mechanism. The inventor of the present disclosure developed a test piece cutting device in which a flat pusher elastically pushes out a test piece through an elastic body (see Patent Document 1). However, for example, when cutting a thick test base material or a hard test base material, etc., if the test piece firmly gets stuck and bites into the cylindrical blade, it is difficult to push out the test piece from the cylindrical blade with 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 ← Mr. Kioka [Overview of the project] [Problems that the invention aims to solve]

[0005] This disclosure was developed with the aim of further eliminating the above-mentioned shortcomings, and one of the objectives of this disclosure is to provide a test specimen cutting device that has a simple structure and can separate the cut test specimen from the cylindrical blade at low cost. Furthermore, the description of the purpose and issues in this disclosure does not preclude the existence of other purposes or issues. Also, the nature of this disclosure does not need to solve all of these issues. Moreover, it is possible to extract other issues from the description, drawings, and claims of this disclosure. [Means for solving the problem]

[0006] A specimen cutting apparatus according to one aspect of the present disclosure comprises a support for placing a test substrate, a blade mechanism for cutting the test substrate placed on the support with a cylindrical blade, an extrusion mechanism for pushing the cut specimen out from the cylindrical blade, and a press mechanism for moving the blade mechanism in a first direction, wherein the blade mechanism is connected to the press mechanism and comprises a cylindrical blade for cutting the test substrate into specimens, and the extrusion mechanism has an extrusion section that extends into the cylindrical blade and pushes the cut specimen out from the cylindrical blade, and a stopper section that stops the extrusion section, wherein when the press mechanism moves the cylindrical blade away from the support after cutting the specimen, the extrusion section pushes the specimen out from the cylindrical blade. [Effects of the Invention]

[0007] The above configuration has the advantage of a simple structure and low cost, allowing for the separation of the cut test piece from the cylindrical blade. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic side view of a test specimen cutting device according to one embodiment of the present disclosure. [Figure 2]Figure 1 is a schematic front view of the specimen cutting device shown. [Figure 3] This is a schematic perspective view showing the test piece inside the cylindrical blade after cutting, and the punched test substrate. [Figure 4] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in one scene (upper position) of cutting a test substrate. [Figure 5] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in other stages of cutting the test substrate (extrusion section, position where the inner plate contacts the test substrate). [Figure 6] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in other situations (cutting positions) where the test substrate is cut. [Figure 7] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in other stages of cutting the test substrate (the process of raising the blade mechanism after cutting). [Figure 8] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in another scene where the test substrate is cut (the position where the extrusion part contacts the stopper part and the test piece). [Figure 9] This is a schematic cross-sectional view showing the blade mechanism, extrusion mechanism, and press mechanism in another scenario where the test substrate is cut (when the extrusion mechanism has pushed out the test piece). [Modes for carrying out the invention]

[0009] This disclosure may be defined by the following configurations and features. A specimen cutting apparatus according to one embodiment of the present disclosure comprises a support for placing a test substrate, a blade mechanism for cutting the test substrate placed on the support with a cylindrical blade, an extrusion mechanism for pushing the cut specimen out from the cylindrical blade, and a press mechanism for moving the blade mechanism in a first direction, wherein the blade mechanism is connected to the press mechanism and includes a cylindrical blade for cutting the test substrate into specimens, and the extrusion mechanism has an extrusion section that extends into the cylindrical blade and pushes the cut specimen out from the cylindrical blade, and a stopper section that stops the extrusion section, wherein when the press mechanism moves the cylindrical blade away from the support after cutting the specimen, the extrusion section pushes the specimen out from the cylindrical blade.

[0010] The above configuration has the advantage of being able to separate the cut test specimen from the cylindrical blade at low cost with a simple structure. Conventional cutting devices and methods require a cutting mechanism for the test specimen (cutting process) and a separation mechanism for removing the test specimen from inside the cylindrical blade (separation process). In contrast, this disclosure has a unique structure and configuration that pushes the test specimen out of the cylindrical blade by utilizing the movement of the cylindrical blade away from the support after cutting. This is because the test specimen can be separated from the cylindrical blade during the process of moving the cylindrical blade away from the support after cutting, eliminating the need for the conventional process of removing the test specimen from inside the cylindrical blade, which was required separately from the cutting process. Therefore, it does not require time, effort, or interruption of cutting to remove the test specimen from the cylindrical blade, and cutting efficiency can be greatly improved. It can be realized with a simple structure that utilizes the movement of the cylindrical blade of the press mechanism away from the support, does not require additional power or energy, and cutting costs can be reduced.

[0011] In addition to the above embodiment, a specimen cutting apparatus according to another embodiment of the present disclosure has the extrusion unit positioned to be movable in a first direction. This configuration expands the range of specimens that the extrusion unit can extrude and has the advantage that the extrusion unit can press according to the thickness, material, degree of clogging, etc., of different specimens.

[0012] A specimen cutting apparatus according to another embodiment of the present disclosure, in addition to the above embodiment, includes a blade mechanism comprising 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 a specimen, the first plate having a through hole through which an extrusion section is inserted, and the extrusion section inserted through the through hole can be positioned to move freely in a first direction. The above configuration has the advantage of being able to separate the specimen after cutting from the cylindrical blade at low cost with a simple structure. This is because the extrusion section can be positioned in an appropriate position and orientation with a simple structure in which the first plate has a through hole through which an extrusion section is inserted and the extrusion section inserted through the through hole can be positioned to move freely in a first direction. The extrusion section inserted through the through hole and locked is positioned vertically at a lower position within the range of movement by its own weight, and by utilizing the movement of the cylindrical blade away from the support after cutting, the extrusion section is lifted and moved by the specimen inside the cylindrical blade, stops at the stopper, and can push out the specimen.

[0013] A specimen cutting apparatus according to another embodiment of the present disclosure, in addition to the above embodiment, has an adjustment unit in the extrusion mechanism that adjusts the position of the extrusion unit, and the adjustment unit can position the extrusion unit so as to be movable in the first direction to a thickness greater than or equal to the thickness of the test substrate. The above configuration has the advantage that, for example, depending on the thickness, material, and degree of clogging of the specimen, the adjustment unit adjusts the position of the extrusion unit, the amount of extrusion, and the degree of extrusion, thereby effectively utilizing the movement of the cylindrical blade after cutting by the press mechanism away from the support base, and enabling smooth extrusion without degrading the quality of the specimen.

[0014] In addition to the above embodiment, a specimen cutting apparatus according to another embodiment of the present disclosure may have an extrusion section having a first contact section that contacts the specimen and a second contact section that contacts a stopper section, and a locking section between the first and second contact sections that locks the extrusion section so that it can move freely in a first direction. The above configuration has the advantage of a simple structure in which the extrusion section is locked so that it can move freely in a first direction by the locking section, and the extrusion section can be positioned in an appropriate position and orientation.

[0015] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can have the extrusion part and the stopper part arranged linearly in the first direction. The above configuration has a simple structure where the extrusion part and the stopper part are arranged linearly in the first direction, and effectively utilizes the movement of the pressing mechanism to separate the cylindrical blade from the receiving base after cutting, having the features of pressing the test piece against the extrusion part and increasing the pressing force of the extrusion part. The extrusion part and the stopper part being arranged linearly in the first direction means that when the extrusion part extends linearly in the first direction and the extrusion part abuts against the stopper part on the same straight line, it includes the case where the contact between the extrusion part (the second abutting part) and the stopper part, the contact between the extrusion part (the first abutting part) and the test piece, and the part where the extrusion part (the extending part) is arranged on the same straight line in the first direction.

[0016] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can have the pressing mechanism move in a direction to separate the cylindrical blade from the receiving base while the extrusion part is in contact with the stopper part and the test piece, so that the extrusion part can extrude the test piece inside the cylindrical blade. The above configuration effectively utilizes the movement of separating the cylindrical blade from the receiving base after cutting by the pressing mechanism, having the features of being able to press the test piece against the extrusion part and the extrusion part being able to press the test piece.

[0017] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can have the extrusion part arranged at a protruding position where the lowest part protrudes from the cylindrical blade. The above configuration has the feature that the test base material can be safely set at the rising position before cutting. Also, the above configuration has the feature that the test piece inside the cylindrical blade can stably lift the extrusion part and contact the stopper part, and further, the extrusion part at the protruding position can support the test base material during cutting, suppress deformation, and contribute to improving the cutting accuracy.

[0018] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can have the extrusion part having an inner plate arranged inside the cylindrical blade and having a pressing surface for pressing the test piece. The above configuration has the feature that the inner plate can press evenly with a wide pressing surface (area), reduce the pressing pressure, avoid concentrated pressing and excessive pressing on the test area while increasing the pressing force, and can extrude smoothly.

[0019] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can connect a stopper portion to the pressing mechanism. The above configuration has the feature that the stopper portion can be stably fixed by connecting it to the pressing mechanism, and the stop, pressing position, and posture of the pressing portion can be stabilized.

[0020] In addition to the above aspects, the test piece cutting device according to other embodiments of the present disclosure can have an extrusion mechanism including a pair of extrusion portions arranged at a distance from each other and a pair of stopper portions for stopping the pair of extrusion portions at a stop position. The above configuration has the features that the number of contacts and the area of contact between the pair of extrusion portions and the test piece increase, the pressure can be reduced, the pair of extrusion portions can contact and press evenly at the separated positions, and the pair of stopper portions can support and stop the pair of extrusion portions respectively. The above configuration has the features that the extrusion portion and the stopper portion can be arranged without inhibiting the connection between the pressing mechanism and the blade mechanism, and the blade mechanism and the extrusion portion can be arranged without inhibiting each other's movement in the first direction.

[0021] Hereinafter, the present invention will be described in detail based on the drawings. In the following description, terms indicating specific directions or positions (for example, "up", "down", and other terms including those terms) are used as necessary, but the use of those terms is for facilitating the understanding of the invention with reference to the drawings, and the technical scope of the present invention is not limited by the meanings of those terms. Also, parts denoted by the same reference numerals in a plurality of drawings indicate the same or equivalent parts or members. Furthermore, the embodiments shown below are specific examples of the technical idea of the present invention and do not limit the present invention below. Also, the dimensions, materials, shapes, relative arrangements, etc. of the components described below are not intended to limit the scope of the present invention only to those, but are intended to be exemplary unless specifically described. Also, the content described in one embodiment or example is applicable to other embodiments or examples. Also, the sizes and positional relationships of the members shown in the drawings may be exaggerated for clarity of explanation. The up and down directions are specified in the drawings. (Embodiment 1)

[0022] Figures 1, 2, and 4 show a test specimen cutting device 100 according to Embodiment 1. The cutting device 100, which cuts a test substrate 6 into a test specimen 7 as shown in the figures, comprises a support base 30 on which the test substrate 6 is placed, a blade mechanism 1 for cutting the test substrate 6 placed on the support base 30 into a test specimen 7, an extrusion mechanism 10 for pushing the cut test specimen 7 out from the cylindrical blade 2, and a press mechanism 20 for moving the blade mechanism 1 in a first direction. The first direction in this disclosure indicates the direction in which the press mechanism 20 moves the blade mechanism 1 (cylindrical blade 2). For example, the first direction in Figure 1 and the like indicates a vertical direction and includes a downward direction (downward direction) that brings the cylindrical blade 2 closer to the support base 30 and a direction that moves the cylindrical blade 2 away from the support base 30 (upward direction). (Support stand 30)

[0023] The support stand 30 has a cutting surface 31 for placing the test substrate 6 in a predetermined position and cutting it. The cutting surface 31 is provided on the upper surface of the support stand 30 in a shape that matches the test substrate 6. In Figures 1 and 2, the cutting surface 31 is a smooth plane provided in a horizontal position, and the test substrate 6 is positioned in a horizontal position. The support stand 30 can be made of metal, or it can be made of materials other than metal in whole or in part, for example, the surface can be made of plastic or rubber. In the case of a metal support stand 30, a cushioning sheet 32 ​​is placed on the cutting surface 31 as shown in Figures 1 and 2. The cushioning sheet 32 ​​allows the test substrate 6 to be punched into a predetermined shape while preventing damage to the cutting edge 2a of the cutting mechanism 1. The cushioning sheet 32 ​​is, for example, a plastic sheet with a thickness of 1 mm to 5 mm. The support base 30, which has a cushioning sheet 32 ​​laminated on its upper surface, allows the blade tip 2a of the blade mechanism 1 to be brought into close contact with the cushioning sheet 32, or the blade tip 2a of the blade mechanism 1 to be inserted into the surface of the cushioning sheet 32, in a state where the test substrate 6 is being punched out by the blade mechanism 1, so that the entire circumference of the test piece 7 can be cleanly cut from the test substrate 6. However, the support base 30 does not necessarily need to have a plastic cushioning sheet 32 ​​on its upper surface. Instead of a plastic cushioning sheet 32, a cushioning sheet 32 ​​other than plastic that is cut by the blade tip 2a but does not damage the blade tip 2a, such as a metal softer than the support base 30, such as brass or lead, can be laminated, or the test substrate 6 can be punched out and cut by bringing the blade mechanism 1 close to or in contact with the cutting surface 31 of the support base 30 without laminating a cushioning sheet 32. (Press mechanism 20)

[0024] The press mechanism 20 moves the blade mechanism 1 in a first direction. Within the range of the stroke, the press mechanism 20 moves the blade mechanism 1 in a first direction, 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 the cutting. The press mechanism 20 moves the cylindrical blade 2 from the raised position, which is furthest from the support base 30, in a direction approaching the support base 30 (downward), cuts the test substrate 6 at the cutting position, which is closest to the support base 30, and after cutting, moves in a direction away from the support base 30 (upward), returning to the original raised position (Figures 4 to 9). The press mechanism 20 in Figures 1 and 2 moves the blade mechanism 1 vertically up and down relative to the test substrate 6 which is positioned horizontally, pushing down the blade mechanism 1 to cut the test substrate 6. After cutting, the blade mechanism 1 is raised and moved away from the support base 30 (test substrate 6).

[0025] The press mechanism 20 illustrated in Figures 1 and 2 comprises a connecting part 22 connected to a blade mechanism 1, and a cylinder 21 that reciprocates the blade mechanism 1 connected via the connecting part 22 in a first direction. This press mechanism 20 has the cylinder 21 positioned vertically so as to be able to move up and down, and the lower end of the cylinder 21 is connected to the center of the first plate 3. The press mechanism 20 includes automatic and manual types. The press mechanism 20 in Figures 1 and 2 merely illustrates a manual type in which the blade mechanism 1 is moved in a first direction via a cylinder 21 linked to the operation of a handle 23, in order to make it easier to understand the movement of each part, and does not specify the structure of the press mechanism 20. The press mechanism 20 can use any structure that moves the connected blade mechanism 1 in a first direction, including, for example, hydraulic, pneumatic, and mechanical types. The press mechanism 20 can cut the test piece 7 by lowering the cylindrical blade 2 to the cutting position. However, the greater the pressing pressure applied to cut the test substrate 6, the more firmly the cut test piece 7 may become jammed inside the cylindrical blade 2, making it more difficult to remove. The press mechanism can, for example, connect the lower end of a retractable rod of a cylinder to a first plate, and while the cylinder extends and retracts the retractable rod, it can reciprocate up and down while holding the blade mechanism in a horizontal position.

[0026] The press mechanism 20 can move the cylindrical blade 2 a distance (m) greater than or equal to the separation distance (d1, Figure 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 support base 30 after cutting, greater than or equal to the separation distance (d1) between the second contact portion 11b and the stopper portion 14 at the cutting position. With the above configuration, while the extrusion 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 support base 30 (in a direction closer to the stopper portion 14), thereby pressing the test piece 7 inside the cylindrical blade 2 against the extrusion portion 11 (first contact portion 11a). (Test substrate 6, test specimen 7)

[0027] The test substrate 6 is used for various purposes. The test substrate 6 is cut into test pieces 7 of predetermined dimensions and shape having a test area 7X, and various tests such as tensile tests, impact tests, burst tests, and tear tests are performed according to standards. This disclosure does not specify the material, thickness, shape, etc. of the test substrate 6, but includes all test substrates 6 used for tensile tests, etc. The test substrate 6 includes one or more of the following: plastic, rubber, vinyl, paper, metal carbon fiber, aramid fiber, SiC fiber, glass fiber, high-performance fibers, or prepregs (CFRP, CFRTP). In addition to flexible materials, the test substrate 6 also includes inorganic materials that are hardly flexible, such as ceramics, and the cutting mechanism 1 can punch and cut the test substrate 6 with a cylindrical blade 2 without damaging it. The test piece 7 illustrated in Figure 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 tensile strength of the test area 7X, which is cut to a specific width by chucking the chucking areas 7Y at both ends of the test specimen 7 with a testing machine, is measured. However, this disclosure does not specify the shape or dimensions of the test specimen 7 to be cut, and the test specimen 7 can be any shape or dimension as specified. (Blade mechanism 1)

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

[0029] The cylindrical blade tool 2 can cut test pieces 7 of various shapes, with the shape of the blade tip 2a being the outer shape of the test piece 7 to be cut. The cylindrical blade tool 2 illustrated in Figure 3 cuts a test substrate 6 into a dumbbell-shaped test piece 7. It has a pair of long blades that cut both side edges on the long side of the test piece 7, and a pair of short blades connected to both ends of the long blades that cut both side edges on the short side of the test piece 7. The pair of long blades have a test area cutting blade 2X that cuts both sides of the test area 7X, and a chucking area cutting blade 2Y that cuts both sides of the chucking area 7Y. The cylindrical blade tool 2 is a hollow cylinder and has an inner hollow portion. However, this disclosure does not specify that the test piece 7 to be cut must be dumbbell-shaped, and the test piece 7 can be any shape according to the specified test.

[0030] The cylindrical cutting tool 2 can be manufactured, for example, by bending a metal plate with a thickness of 2 mm to 10 mm and welding it into a cylindrical shape, or by cutting a metal block into a cylindrical shape using methods such as electrical discharge machining. The cylindrical cutting tool 2 is made of steel that can be hardened, but preferably, carbon steel with excellent workability is suitable. The carbon content of the carbon steel is adjusted to an optimal value considering the required hardness and brittleness. Carbon steel can be made harder by increasing the carbon content. However, if the carbon content is high, it becomes brittle, so carbon steel with a carbon content of, for example, 0.4% or more and 1.4% or less, preferably 0.45% or more and 0.7% or less is used.

[0031] The cylindrical blade 2 has an outer cutting surface at the lower end of the cylindrical outer surface, providing a single-edged cutting edge 2a. The cylindrical blade 2 can have its cutting edge 2a formed by grinding the lower ends of the cylindrical outer and inner surfaces with a grinding wheel or file. The cutting edge 2a has an outer cutting surface formed by grinding the lower end of the cylindrical outer surface. The single-edged cutting edge 2a can start cutting the test material 6 to a predetermined size and shape, but as the thickness of the test material 6 increases, it may become narrower at the bottom and wider at the top, making it difficult to push out from inside the cylindrical blade 2. In addition, the single-edged cutting edge 2a can have a modified cutting surface that is narrower vertically than the outer cutting surface along the lower end of the inner surface, and the cutting edge 2a can be positioned off-center to the outer surface of the cylindrical inner surface.

[0032] The first plate 3 in Figures 3 and 4 is connected and fixed above the cylindrical blade 2, closing 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 through hole 4 allows the extrusion portion 11 inserted therein to 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 diameter of the locking portion 16 and the second contact portion 11b, so that it can be locked by the locking portion 16. The blade mechanism 1 illustrated in Figure 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 with members and structures other than the first plate 3, and the blade mechanism 1 can also have a structure without the first plate 3. (Extrusion mechanism 10)

[0033] The extrusion mechanism 10 pushes the test piece 7 inside the cut cylindrical blade 2 out of the cylindrical blade 2. The extrusion mechanism 10 has an extrusion section 11 that pushes the test piece 7 out of the cylindrical blade 2 and a stopper section 14 that stops the extrusion section 11 at a stopping position. The extrusion section 11 has a first contact section 11a that contacts the test piece 7 inside the cylindrical blade 2 and a second contact section 11b that contacts the stopper section 14. In Figure 4, the extrusion section 11 has the first contact section 11a at the lower end of the extrusion section 11 and the second contact section 11b at the upper end. The extrusion section 11 can push out the test piece 7 inside the cylindrical blade 2 by both the first contact section 11a and the second contact section 11b contacting each other. The stopper section 14 determines the stopping position and orientation of the extrusion section 11.

[0034] In the extrusion mechanism 10, when the extrusion section 11 presses against the test piece 7 during extrusion, one second contact section 11b of the extrusion section 11 comes into contact with the stopper section 14 and stops, while the other first contact section 11a comes into contact with the test piece 7. The extrusion section 11, in contact with both the stopper section 14 and the test piece 7, is held between them, creating a state of tension between them. In Figure 8, the extrusion section 11 maintains the stopped position in which it comes into contact with the stopper section 14 and is in a state of tension between the test piece 7 and the stopper section 14. Furthermore, after cutting, the press mechanism 20 separates the cylindrical blade 2 from the support base 30, that is, the cylindrical blade 2 moves (rises) in a direction approaching the stopper section 14. As a result, the test piece 7 inside the cylindrical blade 2 is pressed against the extrusion section 11 (action), and the extrusion section 11 presses against the test piece 7 (reaction), clearing the jam and pushing it out from inside the cylindrical blade 2. As the cylindrical blade 2 moves away from the support base 30 (upwards) after cutting, the press mechanism 20 increases the pressure on the test piece 7 inside the cylindrical blade 2 against the extrusion section 11, increasing the amount of pressure and thus the stronger the pressure on the test piece 7 by the extrusion section 11. Therefore, the extrusion section 11 can press and push out the test piece 7 according to the degree of jamming of the test piece 7. The extrusion mechanism 10 can utilize and convert the movement of the cylindrical blade 2 after cutting, moving away from the support base 30 (approaching the stopper section 14), into a force that the extrusion section 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 extrusion unit 11 presses the test piece 7 inside the cylindrical blade 2 by utilizing the movement of the press mechanism 20 as it separates the cylindrical blade 2 from the support base 30 after cutting. This allows the test piece 7 to be separated from the cylindrical blade 2 during the process of separating the cylindrical blade 2 from the support base 30 as it moves to the raised position after cutting, and the extrusion of the test piece 7 can be completed when the cylindrical blade 2 has moved to the raised position. Therefore, it does not require any of the separation process, work, or separation mechanism required by conventional cutting devices and cutting methods to push the test piece out of the cylindrical blade after it has moved to the raised position after cutting, thus reducing time and effort. Moreover, by utilizing the movement of the press mechanism 20 as it separates the cylindrical blade 2 from the support base 30, no additional power or energy is required, reducing these costs and significantly improving cutting efficiency.

[0035] The extrusion unit 11 shown in Figures 4 to 7 is positioned to be movable in a first direction between the stopper unit 14 and the test substrate 6 inside the cylindrical blade 2 when the extrusion unit 11 is not extruding the test piece 7. When the extrusion unit 11 is not extruding, it is positioned to be movable in a first direction in a non-contact state in which the first contact part 11a does not contact the test piece 7, and / or the second contact part 11b does not contact the stopper unit 14. However, the extrusion unit 11 can be connected and fixed in contact with the stopper unit 14 without moving in the first direction.

[0036] The extrusion portion 11 in Figure 4 has a locking portion 16 that locks the extrusion portion 11 so that it can move in a first direction. The extension portion 11c is inserted through a through hole 4 in the first plate 3, and the extrusion portion 11 is locked by the locking portion 16, hanging down by its own weight at a lower position within the movable range, and is arranged to move freely in the first direction. The locking portion 16 locks, suspends, and hangs the extrusion portion 11, allowing it to be stably positioned vertically at a lower position within the movable range by its own weight. The locking portion 16 in Figure 4 can lock the extrusion portion 11 as a nut placed between the first contact portion 11a and the second contact portion 11b, and the height at which the nut locks by moving up and down on the male threaded portion of the extension portion 11c can be easily adjusted. Figures 4 and 5 show that the extruded portion 11, which is locked by the locking portion 16, has a portion of its extended portion 11c protruding from the first plate 3 toward the stopper portion 14, and the second contact portion 11b is positioned at the protruding height (n1). When not extruding, the extruded portion 11 is positioned to move freely in the first direction, except when locked by the locking portion 16. First, it can move upward toward the stopper portion 14 on the unlocked side, and when the locking portion 16 is separated from the first plate 3, it can move in both the upward and downward directions (direction toward the support base 30) in the first direction. At the cutting position in Figure 6, the extruded portion 11 is lifted by the test piece 7 inside the cylindrical blade 2 by an amount (o), and the protruding height of the second contact portion 11b becomes n2 (=n1+o). In Figure 7, the cylindrical blade 2 rises with the extrusion section 11 lifted by the test piece 7. In Figure 8, the extrusion section 11 stops in a braced state, in contact with the stopper section 14 and the test piece 7, and the cylindrical blade 2 rises further. The cylindrical blade 2 is allowed to rise (move in the first direction) by the amount (o) that the extrusion section 11 is lifted by the test piece 7, pressing the test piece 7 inside the cylindrical blade 2 against the first contact section 11a, so that the first contact section 11a can press against the test piece 7. The locking section 16 can be an integral structure with the first contact section 11a or the second contact section 11b, or the first contact section 11a or the second contact section 11b can be made into the locking section 16.

[0037] The extrusion section 11 in Figure 4 has an extended section 11c that extends in a first direction, a first contact section 11a whose lower end contacts the test piece 7, and a second contact section 11b whose upper end contacts the stopper section 14. In the extrusion section 11 in Figure 4, a part of the extended section 11c extends into the cylindrical blade 2, with the first contact section 11a located inside the cylindrical blade 2 and the second contact section 11b located outside the cylindrical blade 2. The extrusion section 11 in Figure 4 is a bolt, but any shape, structure, and material that can extrude the test piece 7 can be used. The extrusion section 11 (extended section 11c) can be columnar, rod-shaped, cylindrical, rod, shaft, plate-shaped, bolt, etc., and its external cross-sectional shape can be circular, elliptical, rectangular, polygonal, L-shaped, T-shaped, cross-shaped, etc. The extruded portion 11 may have irregularities, grooves, steps, screw threads, etc., and may also be reinforced with ribs, rounded corners, etc. The extruded portion 11 is preferably made of metal. A metal extruded portion 11 does not change in length (L), can firmly maintain the braced state when pressed against the stopper portion 14 and the test piece 7, and can reflect and utilize the upward movement of the cylindrical blade 2 including the test piece 7 in the pressing of the test piece 7 without loss. However, the extruded portion 11 may have an elastic material that deforms elastically, 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 made larger than the outer diameter (diameter) of the extension portion 11c. In Figure 4, the second contact portion 11b is a screw head. The screw head can contact the stopper portion 14 in a planar manner, stabilizing the stopping position and reducing the contact pressure. In Figure 4, the first contact portion 11a is an inner plate 12. The inner plate 12 in Figure 4 is positioned inside the cylindrical blade 2 and has a pressing surface 12a that contacts and presses the test piece 7 (test substrate 6) in a planar manner. The inner plate 12 can contact the test piece 7 in a planar manner with its wide pressing surface 12a, pressing the test piece 7 evenly, reducing the pressing pressure, avoiding excessive pressure concentration, and preventing excessive pressure on the test area 7X. The inner plate 12 in Figure 4 has a peripheral shape that conforms to the inner surface of the cylindrical blade 2, with a gap between its peripheral and the inner surface of the cylindrical blade 2, and is arranged to move freely in the first direction. In the raised position, the extrusion section 11 in Figure 4 is positioned so that the lower surface (lowest part) of the inner plate 12 protrudes from the cutting edge 2a of the cylindrical blade 2. In Figure 4, the thickness of the inner plate 12 is made greater than or equal to the protrusion width (T), making it difficult for fingertips to touch the cutting edge 2a, and allowing the test substrate 6 to be set safely and quickly on the support base 30. In the raised position, the extrusion section 11 can be positioned so that the second contact portion 11b is not in contact with the stopper portion 14 or is in contact with it. When the second contact portion 11b is not in contact with the stopper portion 14 and the extrusion section 11 is movable in the first direction and hangs down by its own weight, 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 in contact with the stopper portion 14, the extrusion portion 11 cannot move upward, and the inner plate 12 in the protruding position can be made safer.

[0039] The extrusion section 11 is positioned between the stopper section 14 and the test substrate 6 on the support base 30. The length (L) of the extrusion section 11 is less than or equal to the distance (L1) between the stopper section 14 and the test substrate 6 on the support base 30, and is long enough to press and extrude the test piece 7 inside the cylindrical blade 2 before the cylindrical blade 2 rises to the raised position after cutting. In Figure 4, the length (L) of the extrusion section 11 is greater than or equal to the height (H) of the cylindrical blade 2. In this extrusion section 11, the second contact section 11b is stopped by contacting the stopper section 14 outside the cylindrical blade 2, while the first contact section 11a can contact the test piece 7 inside the cylindrical blade 2. The extrusion section 11 can position the first contact section 11a (inner plate 12) in a protruding position. Then, the extrusion portion 11 penetrates the cylindrical blade 2, and the first contact portion 11a presses against and protrudes beyond the cutting edge 2a, thereby reliably pushing out the test piece 7 inside the cylindrical blade 2.

[0040] The extrusion mechanism 10 in Figure 4 has an adjustment section 15 for adjusting the position of the extrusion section 11. The locking section 16 can be made movable and adjustable to function as the adjustment section 15. The extrusion section 11 is connected and locked to the first plate 3 so as to be movable and adjustable in a first direction, and can accommodate a variety of test substrates 6. In Figure 4, a nut that serves as both the adjustment section 15 and the locking section 16 is used to lock the position of the extrusion section 11 in an adjustable manner. The nut can be easily fine-tuned and moved. Note that the adjustment section 15 and the locking section 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 unit 11, the amount of protrusion of the first contact portion 11a (inner plate 12) from the cutting edge 2a when not extruded before cutting, the locking position of the extrusion unit 11, the range of the extrusion unit 11 that can be lifted by the test piece 7, and the amount of extrusion of the extrusion unit 11 (first contact portion 11a). The adjustment unit 15 can arrange the extrusion unit 11 so as to be movable in the first direction to a thickness (t) of at least the thickness of the test substrate 6, so as to ensure that the test piece 7 inside the cylindrical blade 2 is reliably extruded. Figure 4 shows that the nut of the adjustment part 15 is positioned between the first contact part 11a and the second contact part 11b. For example, by tightening the nut and positioning it towards the second contact part 11b, the locking position is raised relatively, allowing the second contact part 11b and the first contact part 11a to be positioned lower. By loosening the nut and positioning it towards the first contact part 11a, the locking position is lowered relatively, allowing the second contact part 11b and the first contact part 11a to be positioned higher.

[0041] The extrusion mechanism 10 allows the extrusion section 11 to move in a 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 support base 30 and the length (L) of the extrusion section 11, thereby expanding the range of the extrudeable test piece 7. The extrusion mechanism 10 can move the extrusion section 11 in a first direction to a thickness (t) or more of the test substrate 6, thereby extruding the test substrate 6 from inside the cylindrical blade 2. Furthermore, the extrusion mechanism 10 can, for example, move the extrusion section 11 in a first direction to a thickness (t) of the test substrate 6 of 8 times or less, 6 times or less, 5 times or less, 4 times or less, 3 times or less, or 2 times or less of the thickness (t) of the test substrate 6, thereby ensuring that the extrusion section 11 makes stable contact with the test piece 7 and pressing the test piece 7 while avoiding or reducing unnecessary movement. The press mechanism 20 allows the cylindrical blade 2 to move in a first direction relative to the extrusion section 11, thereby pressing the test piece 7 inside 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 thickness (t) greater than or equal to the thickness (t) of the test substrate 6, thereby pushing the test substrate 6 out from inside the cylindrical blade 2. For example, by moving the cylindrical blade 2 in the first direction to a thickness (t) of 20 times, 15 times, 10 times, 8 times, or 5 times less than or equal to the thickness (t) of the test substrate 6, the test piece 7 can be stably brought into contact with and pressed against the extrusion section 11, thereby avoiding and reducing unnecessary movement. (Stopper part 14)

[0042] The stopper section 14 stops the extrusion section 11 at a predetermined stopping position. In Figure 4, the stopper section 14 is positioned horizontally perpendicular to the first direction. The stopper section 14 in Figure 4 contacts the extrusion section 11, which moves (rises) in the first direction together with the cylindrical blade 2, and can stop the extrusion section 11 at the stopping position. As shown in Figure 8, the extrusion section 11, having contacted the stopper section 14, stops in the stopping position without rising above the stopping position, but the cylindrical blade 2 does not come into contact with the stopper section 14 and can rise further. The cylindrical blade 2 and the test piece 7 inside the hollow part rise further, increasing the extension length of the extrusion section 11 into the cylindrical blade 2 (p1 in Figure 8 < p2 in Figure 9), and the extrusion section 11 can press against the test piece 7 (Figures 8 and 9). As the cylindrical blade 2 moves upward relative to the extrusion section 11 which is stopped by the stopper section 14, the test piece 7 inside the hollow section rises, and the first contact section 11a at the lower end of the extrusion section 11 comes into contact with the test piece 7 and is lifted, increasing the pressure of the test piece 7 against the first contact section 11a, allowing the first contact section 11a to press down on the test piece 7.

[0043] The stopper section 14 is connected to the frame, outer surface, support member, wall surface, and side surface of the press mechanism 20, and is stably fixed so that the extrusion section 11 can be reliably stopped at the stopping position. The pair of stopper sections 14 shown in Figures 1 and 2 are each firmly fixed to the side frames on both sides of the press mechanism 20 via connecting section 17a and fixing section 17b, so that the contacting extrusion section 11 can be stably and reliably stopped and supported in a predetermined position and orientation. However, the stopper section 14 can also be connected to and fixed to the press mechanism 20 so that it can move within a range that allows the extrusion section 11 to be stopped at a predetermined stopping position. The stopper section 14 can use any structure that stops the extrusion section 11 at the stopping position, and the number and arrangement of the stopper sections 14 can be appropriately determined according to the number, length, shape, stopping position, etc. of the extrusion section 11.

[0044] The extrusion mechanism 11 in Figure 4 has the extrusion section 11 and the stopper section 14 arranged in a straight line in the first direction. The first contact section 11a, the second contact section 11b, the stretching section 11c, and the stopper section 14 of the extrusion section 11 are arranged in a straight line, and the extrusion section 11 contacts the stopper section 14 and the test piece 7 on the same straight line. With a simple structure, the movement of the cylindrical blade 2 after cutting by the press mechanism 20, which separates it from the support base 30 (approaching the stopper section 14), is effectively utilized without loss, increasing the pressing force of the extrusion section 11, and allowing the extrusion section 11 to efficiently press the test piece 7. The inner plate 12 (first contact section 11a) in Figure 4 includes a portion in which the extrusion section 11 and the stopper section 14 are arranged in a straight line in the first direction.

[0045] The extrusion section 11 can be connected to the stopper section 14 and may be an integrated structure. When the extrusion section 11 is connected to and fixed to the stopper section 14, it can maintain a stable position and posture in a stopped state with the second contact section 11b constantly in contact with the stopper section 14, and can press against the test piece 7 that is brought close and pressed against it.

[0046] The extrusion mechanism 10 has one or more extrusion sections 11 and stopper sections 14. Multiple extrusion sections 11 can increase the number of contact points and pressure points on the test piece 7, expand the pressure area, distribute the pressure, and smoothly extrude the test piece 7 while reducing the pressure and avoiding excessive concentration of pressure. The extrusion mechanisms 10 in Figures 2 and 4 have a pair of extrusion sections 11 and a pair of stopper sections 14. In Figure 4, the pair of extrusion sections 11 can press particularly long test pieces 7 more evenly while maintaining a horizontal position by having multiple extrusion sections 11 contact each other simultaneously, and can press evenly with the inner plate 12. In Figure 4, the pair of extrusion sections 11 (extension sections 11c) are spaced apart at ends other than the central part, and the extension sections 11c are connected to the first contact section 11a in the chucking area 7Y of the test piece 7. This configuration allows for pressing through the stretched portion 11c connected in the chucking region 7Y, preventing excessive pressing of the test region 7X and the resulting damage, deformation, and quality degradation. The pair of extrusion sections 11 in Figure 4 have two stretched portions 11c, two second contact portions 11b, and one first contact portion 11a of the inner plate 12. Each pair of stretched portions 11c is connected to the inner plate 12, and further, each pair of stretched portions 11c is connected to the inner plate 12 at a position that contacts the chucking region 7Y. The stretched portions 11c can be fixed to the inner plate 12, for example, by screw fastening. For example, to push out a tightly packed test piece 7, strong pressure is required, but by pressing the test piece 7 evenly on the pressing surface 12a of the inner plate 12, the pressing pressure can be reduced, and strong pressure can be applied while avoiding concentration of pressure on the test region 7X.

[0047] The blade mechanism 1 is connected to the press mechanism 20 between a pair of extrusion sections 11 (stretching sections 11c). The blade mechanism 1 is connected horizontally to the connecting section 22 of the press mechanism 20 at the center of the first plate 3 between the pair of extrusion sections 11. The extrusion sections 11 located on both sides of the connecting section 22 (the center of the first plate 3) do not obstruct the connection between the blade mechanism 1 and the press mechanism 20, nor the movement of the blade mechanism 1 in the first direction. Similarly, the connection between the first plate 3 and the press mechanism 20 does not obstruct the movement or pressing of the extrusion sections 11 in the first direction.

[0048] The stopper portion 14 is provided according to the number and arrangement of the extrusion portions 11 (second contact portion 11b) that it contacts. Each pair of stopper portions 14 contacts each other with a pair of extrusion portions 11 (second contact portion 11b) and stops at the respective stopping position. The pair of stopper portions 14 in Figure 4 are arranged in a horizontal position at the same height, allowing the pair of extrusion portions 11 to contact each other simultaneously, supporting and stopping them in a distributed manner, and are particularly useful in the case of a long test piece 7, together with the pair of extrusion portions 11.

[0049] When the cylindrical blade 2 moves away from (rises) the support base 30 after cutting, the extrusion unit 11 is such that the first contact part 11a and the second contact part 11b can contact the test piece 7 and the stopper part 14 simultaneously or at different times. In the extrusion unit 11 illustrated in Figures 4 to 9, when the cylindrical blade 2 rises, the first contact part 11a first contacts the test piece 7 inside the cylindrical blade 2 after cutting, and then the second contact part 11b contacts the stopper part 14. The test piece 7 that is jammed and caught inside the rising cylindrical blade 2 first contacts the first contact part 11a, and with the test piece 7 in contact with the first contact part 11a, the extrusion unit 11 is lifted, and the rising cylindrical blade 2 rises up the extrusion unit 11 together with the test piece 7. The extrusion section 11 rises until the second contact section 11b contacts the stopper section 14, and then stops at the stopping position where the second contact section 11b contacts the stopper section 14. This configuration utilizes the movement of the cylindrical blade 2 separated from the support base 30 after cutting by the press mechanism 20, allowing the test piece 7 inside the slowly rising cylindrical blade 2 to lift the extrusion section 11 and stably contact the second contact section 11b with the stopper section 14. However, the extrusion section 11 can also have the second contact section 11b contact the stopper section 14 first, followed by the first contact section 11a contacting the test piece 7, or the first contact section 11a and the second contact section 11b contact the test piece 7 and the stopper section 14 simultaneously.

[0050] The extrusion unit 11 uses the movement of the cylindrical blade 2 as it moves away from the support base 30 to press the test piece 7. Therefore, it starts pressing the test piece 7 before it reaches the raised position and finishes extruding the test piece 7. In the extrusion unit 11 shown in Figures 4 to 9, the cylindrical blade 2 presses the test piece 7 when it is closer to the raised position. The extrusion unit 11 can adjust the extrusion position, the degree of pressure, and the movement speed by changing the distance from the raised position at which the pressing position of the test piece 7 is started, and can be set according to the thickness of the test substrate 6, the required pressing force, etc. For example, by bringing the pressing position closer to the raised position, the degree of pressure can be reduced and the extrusion width can be shortened, and by moving the pressing position further away from the raised position, the degree of pressure can be increased and the extrusion width can be lengthened. The press mechanism 20 lowers the cylindrical blade 2, cuts, and then raises it, stopping at the raised position. The cylindrical blade 2 stops briefly at the cutting position before beginning to rise. Because the distance between the cutting position and the rising position is short, the movement speed of the cylindrical blade 2 is low, allowing for a gradual increase in the pressure applied to the test piece 7 and the pressure applied by the extrusion section 11. Furthermore, the cylindrical blade 2 decelerates just before reaching the rising position, allowing for an even gentler application of pressure by the extrusion section 11. As the cylindrical blade 2 moves slowly and decelerates near the rising position, it presses the test piece 7 inside the cylindrical blade 2 against the extrusion section 11, gradually increasing the pressure on the test piece 7 and preventing sudden increases or concentrations of excessive pressure. The extrusion section 11, further enhanced by surface contact from the inner plate 12, applies sufficient and appropriate pressure to extrude the test piece 7 inside the cylindrical blade 2, allowing for smooth extrusion of the test piece 7 without damage, deformation, or deterioration of quality.

[0051] As shown in Figures 4 to 9, the cutting device 100 punches out the test substrate 6 to cut it into test pieces 7, and then pushes the cut test pieces 7 out from inside the cylindrical blade 2. (1) With the cylindrical blade 2 in the raised position, the test substrate 6 is set in the predetermined position. Before cutting begins as shown in Figure 4, the press mechanism 20 positions the cylindrical blade 2 in the raised position and sets the test substrate 6 on the cutting surface 31 of the support base 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 at the protruding position contacts the test substrate 6 (Figure 5), then the blade tip 2a contacts the test substrate 6 and cutting begins, and the cylindrical blade 2 is further lowered to the cutting position to cut the test substrate 6 into test pieces 7 (Figure 6). In the figures, before the blade tip 2a of the cylindrical blade 2 contacts the test substrate 6, first the lower surface of the inner plate 12 at the protruding position contacts the upper surface of the test substrate 6, then the blade tip 2a contacts the test substrate 6 and cutting begins. 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, having entered the inner hollow part of the cylindrical blade 2, lifts the inner plate 12 (extrusion part 11) upward by an amount equal to 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, which cannot fall out due to its own weight, remains inside the cylindrical blade 2 and rises together with the cylindrical blade 2, and the inner plate 12 (extrusion section 11) moves upward as it is lifted by the test piece 7 (Figure 7). (4) As the cylindrical blade 2 rises, the extrusion section 11 presses against and pushes out the test piece 7 inside the cylindrical blade 2. The extrusion section 11, which rises together with the test piece 7 inside the cylindrical blade 2, stops when the second contact section 11b comes into contact with the stopper section 14 while the cylindrical blade 2 is on its way to the rising position (Figure 8). The extrusion section 11 is held between the test piece 7 and the stopper section 14 and stops in a braced state, and the cylindrical blade 2 and the test piece 7 inside continue to rise further relative to the stopped extrusion section 11 (arrow in Figure 8). The extrusion section 11, which is in contact with the stopper section 14, is not pushed up above its stopping position. On the other hand, as the cylindrical blade 2 rises, the test piece 7 moves in a direction that approaches the stopper section 14, and the test piece 7 inside the cylindrical blade 2 is pressed against the second contact section 11b. As it rises, the pressure intensifies, and in reaction, the extrusion section 11 (first contact section 11a) presses against the test piece 7. This 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 is raised to the raised position. The test piece 7 has already been pushed out from inside the cylindrical blade 2, and the cutting process is completed when the cylindrical blade 2 is raised to the raised position. The cut test piece 7 on the support base 30 is collected and returned to the raised position state before cutting (1).

[0053] The above-described test piece cutting device 100 utilizes the upward movement of the cylindrical blade 2 by which the cylinder 21 moves upward to push out and separate the test piece 7 from inside the cylindrical blade 2. Therefore, in order to separate the test piece 7 stuck inside the cylindrical blade 2, no separate work, process, or mechanism is required, such as removing the cylindrical blade 2 from the press mechanism 20 or pushing out the test piece 7. This reduces time and effort, significantly improves cutting efficiency, and reduces the cost of cutting the test piece 7. The above-described test piece cutting device 100 can complete the pushing out of the test piece 7 from inside the cylindrical blade 2 by the time the cylindrical blade 2 moves to the raised position. This eliminates the need to stop or interrupt the cutting work or process to push out the test piece 7 from inside the cylindrical blade 2, and does not lengthen the cutting process time. The cutting device 100 utilizes the movement of the cylindrical blade 2 to return from the cutting position to the raised position, which inevitably occurs after cutting the test piece 7, and the movement of the cylindrical blade 2 to move away from (rise) the support base 30, with a simple structure and without requiring additional power or motor. [Industrial applicability]

[0054] This disclosure is suitable for use as a test specimen cutting device that has a simple structure and can separate the cut test specimen from the cylindrical blade at low cost. [Explanation of Symbols]

[0055] 100... Cutting device 1…Blade mechanism 2…Cylindrical blade 2a...Blade tip 2X…Test area cutting blade 2Y...Chucking area cutting blade 3…First Plate 4…Through hole 6…Test substrate 7…Test specimen 7X…Examination 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 Department 15…Adjustment section 16… Locking part 17a...Connection part 17b…Fixed part 20…Press mechanism 21... Cylinder 22...Connection part 23... Handle 30... Stand 31…Cut surface 32…Cushioning sheet

Claims

1. A support stand for placing the test substrate, A cutting mechanism for cutting the test substrate placed on the aforementioned support base with a cylindrical blade, An extrusion mechanism for pushing the cut test piece out from the cylindrical blade, A test piece cutting device comprising a press mechanism that moves the blade mechanism in a first direction, The aforementioned cutting mechanism, The press mechanism is connected to the cylindrical blade used to cut the test substrate into test pieces, The extrusion mechanism, An extrusion section that extends into the cylindrical blade and pushes the cut test piece out of the cylindrical blade, It has a stopper that stops the extrusion section, When the press mechanism moves the cylindrical blade away from the support after cutting the test piece, A test piece cutting device in which the extrusion unit extrudes the test piece from the cylindrical blade.

2. A test specimen cutting device according to claim 1, A test piece cutting device wherein the extrusion unit is arranged to be movable in a first direction.

3. A test specimen cutting device according to claim 1, The aforementioned cutting mechanism, It comprises a first plate connected to the aforementioned press mechanism, The aforementioned cylindrical blade is Fixed to the first plate, At the lower end, it has a cylindrical cutting edge for cutting the test substrate into test pieces. The 1st NBA plate, Having a through hole through which the extruded portion is inserted, A test piece cutting device comprising the extrusion portion inserted through the through hole and arranged to be movable in a first direction.

4. A test specimen cutting device according to claim 1, The extrusion mechanism, It has an adjustment unit for adjusting the position of the extrusion section, A test piece cutting device in which the adjustment unit positions the extrusion unit so as to be movable in the first direction to a thickness greater than or equal to the thickness of the test substrate.

5. A test specimen cutting device according to claim 1, The extrusion section, A first contact portion that contacts the test piece, It has a second contact portion that contacts the stopper portion, A test piece cutting device having a locking portion between the first contact portion and the second contact portion for locking the extrusion portion so as to be movable in a first direction.

6. A test specimen cutting device according to claim 1, A test piece cutting device in which the extrusion portion and the stopper portion are arranged in a straight line in the first direction.

7. A test specimen cutting device according to claim 1, The aforementioned press mechanism is With the extrusion portion in contact with the stopper portion and the test piece, Move the cylindrical blade in a direction away from the support base, A specimen cutting device in which the extrusion section pushes out the specimen inside the cylindrical blade.

8. A test specimen cutting device according to claim 1, A test piece cutting device wherein the extrusion portion is positioned at a protruding position such that its lowest part protrudes from the cylindrical blade.

9. A test specimen cutting device according to claim 1, The extrusion section, A specimen cutting device comprising an inner plate positioned inside the cylindrical blade and having a pressing surface for pressing the specimen.

10. A test specimen cutting device according to claim 1, A test piece cutting device comprising the stopper portion connected to the press mechanism.

11. A test specimen cutting device according to any one of claims 1 to 10, The extrusion mechanism, A pair of extrusion sections arranged at a distance from each other, A test piece cutting device having a pair of stopper parts that stop a pair of extrusion parts at a stopping position.

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