CN111673804B - Flat edge cutting method for hard plate - Google Patents
Flat edge cutting method for hard plate Download PDFInfo
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- CN111673804B CN111673804B CN202010699395.4A CN202010699395A CN111673804B CN 111673804 B CN111673804 B CN 111673804B CN 202010699395 A CN202010699395 A CN 202010699395A CN 111673804 B CN111673804 B CN 111673804B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
- B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
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- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
The invention relates to the technical field of plate cutting, in particular to a flat blade cutting method of a hard plate, which comprises the steps of cutting one edge at an edge by using a flat blade positive cutter, wherein the flat blade of the flat blade positive cutter is aligned to a required cut piece, the convex blade of the flat blade positive cutter is aligned to an unnecessary cut piece, and a vertical rake face is aligned to the cutting edge to start cutting; cutting the other edge at the corner by using a flat-edge reverse knife, wherein the flat edge is aligned to a required cut piece, the convex edge is aligned to an unnecessary cut piece, and the vertical rake face is aligned to the cutting corner to start cutting; and repeating the steps until all the edges are cut, and cutting the middle straight line segment by using a flat blade cutter until all the straight line segments are cut, wherein the flat blade of the flat blade cutter is aligned to the required cut pieces, and the convex blade is aligned to the unnecessary cut pieces. The cutting method can not extrude the required cut pieces, avoids the change of the internal structure performance of the material and avoids the generation of white edges. The straight flat-edge cutter and the reverse flat-edge cutter realize the cutting at the corners and avoid the over-cutting.
Description
Technical Field
The invention relates to the technical field of plate cutting, in particular to a flat edge cutting method for a hard plate.
Background
In some industries, it is desirable to cut profiles from hard sheet materials. The cutting of hard panel usually adopts the mode of cold cutting, and in present cutter cold cutting mode, the blade of cutter all is towards two directions, and both sides are all edged promptly, and the both sides of cutter all can be protruding come, all has certain extrusion to two directions of material when the cutting. In some special industries (such as cutting of glass fiber reinforced phenolic boards), the extrusion may cause the edge of the cut material to be unsmooth, or the cut material may have a white edge under the extrusion action of the blade. Specifically, the pressing force at the side where the blade protrudes during pressing is large, and the internal texture of the material is changed, resulting in a whitening phenomenon. The presence of a cut white edge can result in material scrap. In addition, for the cutting at the corner, the two sides of the common cold cutting tool are provided with cutting edges, so that the positions of lifting and falling the tool can be cut into more sections, and the material can be scrapped.
Disclosure of Invention
The invention provides a flat edge cutting method and a cutting knife set for hard plates, aiming at overcoming the defect that materials are scrapped due to the fact that white edges are easily generated in cold cutting of the existing hard plates.
The technical scheme adopted by the invention for solving the technical problems is as follows: a flat-edge cutting method for hard plates comprises a cutting knife set, wherein the cutting knife set comprises a flat-edge positive knife, a flat-edge reverse knife and a flat-edge cutter, and the specific cutting method comprises the following steps:
step S1: cutting one edge at the edge by using a flat-edge positive cutter, wherein the flat edge of the flat-edge positive cutter is aligned to a required cut piece, the convex edge of the flat-edge positive cutter is aligned to an unnecessary cut piece, and the vertical front cutter surface of the flat-edge positive cutter is aligned to the cutting edge to start cutting;
step S2: cutting the other edge at the corner by using a flat-edge reverse knife, wherein the flat edge of the flat-edge reverse knife is aligned to a required cut piece, the convex edge of the flat-edge reverse knife is aligned to an unnecessary cut piece, and the vertical front knife surface of the flat-edge reverse knife is aligned to the cutting corner to start cutting;
repeating the step S1 and the step S2 until all the edges are cut, and then entering the step S3;
step S3: and cutting the middle straight line segment by using a flat-edge cutter until all the straight line segments are cut, wherein the flat edge of the flat-edge cutter is aligned to the required cut piece, and the convex edge of the flat-edge cutter is aligned to the unnecessary cut piece.
According to another embodiment of the present invention, the step S3 is preceded by a step of cutting the circular arc, and the cutting is started from the starting point of the circular arc by using a flat-edge forward knife or a flat-edge reverse knife, wherein the flat edge of the flat-edge forward knife or the flat-edge reverse knife is aligned with the desired cut piece, the convex edge of the flat-edge forward knife or the flat-edge reverse knife is aligned with the undesired cut piece, and the vertical rake face of the flat-edge forward knife or the flat-edge reverse knife is aligned with the starting point of the circular arc. For the cutting trajectory with both corners and rounded corners, we can cut all the rounded corners and corners before step S3, and then start step S3 to cut the middle straight line segment.
According to another embodiment of the present invention, the method further comprises that the cutting length of the flat-edge positive cutter in the step S1 is greater than half of the width of the flat-edge cutter, and the cutting length of the flat-edge reverse cutter in the step S2 is greater than half of the width of the flat-edge cutter. Because the cutting length of the flat-edge positive cutter or the flat-edge reverse cutter is greater than half of the width of the flat-edge cutter, the flat-edge cutter can not generate over-cutting and damage corners when cutting is carried out by the flat-edge cutter.
According to another embodiment of the invention, the straight flat-edge cutter and the reverse flat-edge cutter are both sheet-shaped structures, one side of each flat-edge cutter is a flat edge, the other side of each flat-edge cutter is a convex edge, wherein the convex edge is connected with the vertical rake face, and the convex edge comprises a first inclined edge and a second inclined edge which are sequentially connected. Thereby leading the flat-edge positive cutter and the flat-edge reverse cutter to obtain cutting capability.
According to another embodiment of the present invention, the flat-edge cutter is a sheet-shaped structure, one side of the flat-edge cutter is a flat edge, and the other side of the flat-edge cutter is a convex edge, wherein the convex edge comprises a third oblique edge, a fourth oblique edge and a fifth oblique edge which are connected, the third oblique edge and the fifth oblique edge are symmetrically distributed, and the third oblique edge and the fifth oblique edge are respectively connected with the flat edge.
According to another embodiment of the present invention, the straight flat-edge cutter, the reverse flat-edge cutter and the flat-edge cutter are all mounted on the cutter base through a trailing cutter structure, the trailing cutter structure includes a base body, and a cutter chuck for mounting a cutter blade is fixed inside the base body. The flat-edge positive cutter, the flat-edge reverse cutter and the flat-edge cutter are all fixed on the cutter holder head.
According to another embodiment of the invention, the lower end of the seat body is connected with a pressing cover through a spring, and the pressing cover is provided with a through groove for the blade to pass through. The material pressing cover structure can prevent the blade from hurting people when the material is not cut, and can also have a certain pressing effect on the material when the material is cut to prevent the material from running.
According to another embodiment of the invention, the base body is provided with a limiting structure outside, the limiting structure comprises a limiting ring and a limiting block, the limiting block is fixedly connected with the limiting ring or integrally formed with the limiting ring, the limiting ring is sleeved on the outer wall of the base body, the outer wall of the base body is provided with a U-shaped groove and at least two groups of adjusting holes, the limiting block is positioned in the U-shaped groove, and a bolt penetrates through the limiting ring to fix the limiting block in one group of adjusting holes. Through a plurality of groups regulation hole, can finely tune the position of spacing ring, can adjust the position of stopper, and the trailing knife structure is fixed in the blade holder, and the stopper can adjust the mounted position of trailing knife structure and blade holder, consequently can adapt to the material of different thickness to improve the cutting scope of cutter.
According to another embodiment of the present invention, the structure of the trailing blade has a rotational degree of freedom in the blade seat, the structure of the trailing blade is driven to rotate by the driving structure, and the blade seat is a liftable blade seat. The flat-edge positive cutter, the flat-edge reverse cutter and the flat-edge cutter can be lifted and rotated independently and can meet the requirements of various cutting profiles.
The flat-edge cutting knife has the advantages that the flat-edge positive knife, the flat-edge reverse knife and the flat-edge cutting knife are respectively provided with the flat edge and the convex edge, wherein the flat edge is aligned to the required cut pieces, so that the required cut pieces are not extruded, the change of the internal structure performance of the material is avoided, and the generation of white edges is avoided. The straight flat-edge cutter and the reverse flat-edge cutter are combined to realize cutting at the corners, the cutting principles of the straight flat-edge cutter and the reverse flat-edge cutter are the same, the intersection points of the corners are used as starting points to cut a line segment, and when the vertical front cutter face is used for cutting, the over-cutting can be avoided.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a flat-edged positive cutter;
FIG. 2 is a side view at the flat edge of the flat-edge spur tool;
FIG. 3 is a side view at the convex edge of the flat-edged spur tool;
FIG. 4 is a schematic view of a flat-edged counterknife;
FIG. 5 is a schematic view of a flat-edged cutter;
FIG. 6 is a side view at the flat edge of the flat-edged cutter;
FIG. 7 is a side view at the convex edge of a flat-edged cutter;
FIG. 8 is a schematic diagram of a cut of a rectangular trace;
FIG. 9 is a cutting trace with rounded corners coexisting;
FIG. 10 is a cutting schematic of a flat-edged positive knife;
FIG. 11 is a schematic view of a flat-edged positive knife;
FIG. 12 is a structural cross-sectional view of a flat-edged positive cutter;
FIG. 13 is an exploded view of the flat edge spur knife;
FIG. 14 is a schematic view of a flat-edged spur, flat-edged counter and flat-edged knife installation;
FIG. 15 is an enlarged partial view of FIG. 14;
FIG. 16 is an exploded view of the tool holder;
fig. 17 is a partially enlarged view of fig. 9.
In the figure, 1, a flat-edge positive cutter, 2, a flat-edge reverse cutter, 3, a flat-edge cutter, 4, a first inclined edge, 5, a second inclined edge, 6, a third inclined edge, 7, a fourth inclined edge, 8, a fifth inclined edge, 9, a trailing cutter structure, 9-1, a base body, 9-2, a cutter holder head, 9-3, a pressure material cover, 9-4, a through groove, 10, a limiting structure, 10-1, a limiting ring, 10-2, a limiting block, 11, a U-shaped groove, 12, an adjusting hole, 13, a cutter holder, 14, a strip-shaped groove, 15 and a pressing block.
Detailed Description
Fig. 1 to 7 are schematic structural diagrams of the present invention, and a method for cutting a hard plate with a flat blade includes a cutting blade set, where the cutting blade set includes a flat blade positive blade 1, a flat blade negative blade 2, and a flat blade cutting blade 3, and the specific cutting method includes:
step S1: cutting one edge at the corner by using a flat-edge straight knife 1, wherein the flat edge of the flat-edge straight knife 1 is aligned to a required cut piece, the convex edge of the flat-edge straight knife 1 is aligned to an unnecessary cut piece, and the vertical front knife surface of the flat-edge straight knife 1 is aligned to the cutting corner to start cutting;
step S2: cutting the other edge at the corner by using the flat-edge reverse knife 2, wherein the flat edge of the flat-edge reverse knife 2 is aligned to a required cut piece, the convex edge of the flat-edge reverse knife 2 is aligned to an unnecessary cut piece, and the vertical front knife surface of the flat-edge reverse knife 2 is aligned to the cutting corner to start cutting;
repeating the step S1 and the step S2 until all the edges are cut, and then entering the step S3;
step S3: and cutting the middle straight line segment by using the flat-edge cutter 3 until all the straight line segments are cut, wherein the flat edge of the flat-edge cutter 3 is aligned to the required cut piece, and the convex edge of the flat-edge cutter 3 is aligned to the unnecessary cut piece.
In this application, plain edge positive sword 1, plain edge counterknife 2 and plain edge cutter 3 all have plain edge and convex edge, and wherein, the cut-parts that need are aimed at to the plain edge, just so can not cause the extrusion to the cut-parts of needs, avoid the change of material internal organization performance, avoid producing the white edge promptly. The straight flat-edge cutter 1 and the reverse flat-edge cutter 2 are combined to realize cutting at the corners, the cutting principles of the straight flat-edge cutter 1 and the reverse flat-edge cutter 2 are the same, a line segment is cut by taking the intersection point of the corners as a starting point, and excessive cutting can be avoided when the vertical front cutter face is used for cutting.
As shown in fig. 8, the track to be cut is a rectangular track, which has four corners, wherein the inside is the required cut and the outside is the unnecessary cut, the straight flat blade knife 1 is used to cut one side of the corner from the intersection point of the first corner, the reverse flat blade knife 2 is used to cut the other side of the corner from the intersection point of the first corner, so as to cut the first corner, the position of the straight flat blade knife 1 is moved and the angle of the straight flat blade knife 1 is changed, one side of the second corner is cut, the position of the reverse flat blade knife 2 is moved and the angle of the reverse flat blade knife 2 is changed, the other side of the second corner is cut, and the steps are repeated in sequence until the four corners are cut, the flat blade knife 3 is started to cut, and the middle line segment of the rectangular track is cut.
According to another embodiment of the present invention, the step S3 is preceded by a step of cutting the circular arc, and the cutting is started from the starting point of the circular arc by using a flat-edge straight knife 1 or a flat-edge reverse knife 2, wherein the flat edge of the flat-edge straight knife 1 or the flat-edge reverse knife 2 is aligned with the desired cut piece, the convex edge of the flat-edge straight knife 1 or the flat-edge reverse knife 2 is aligned with the undesired cut piece, and the vertical rake face of the flat-edge straight knife 1 or the flat-edge reverse knife 2 is aligned with the starting point of the circular arc.
In this embodiment, for the cutting trajectory having both corners and rounded corners, we can start step S3 to cut the middle straight line segment after all the rounded corners and corners are cut before step S3. The cutting of the rounded corners and the edges is not limited in order.
As shown in fig. 9, the track to be cut contains two corners, two rounded corners, and the inside is the cut piece to be reserved. The mode of cutting the corner is not repeated herein, when cutting the fillet, the flat edge positive knife 1 or the flat edge reverse knife 2 can be selected according to the needs, specifically, when cutting, the cutter is anticlockwise cutting, the structural characteristics of the flat edge positive knife 1 and the flat edge reverse knife 2 are the same, the angles of the knives are opposite, and when the fillet contour of the inner cut piece is required to be ensured, the flat edge reverse knife 2 is adopted; when the contour of the external cutting piece fillet needs to be ensured, a flat-edge positive knife 1 is adopted. In fig. 9, what needs to be kept is the inner cut piece, that is, the contour of the inside circle needs to be ensured, a flat-edge counter knife 2 is adopted, the flat edge of the flat-edge counter knife 2 is aligned with the inner cut piece, the convex edge of the flat-edge counter knife 2 is aligned with the outer cut piece, and the cut is performed in the counterclockwise direction from the circular arc starting point until the round corner is cut completely, and the dotted line in fig. 17 represents the feed contour of the flat-edge counter knife 2. And when a plurality of fillets exist, repeating the steps until all the fillets are cut.
According to another embodiment of the present invention, the method further comprises that the cutting length of the flat-edge positive cutter 1 in the step S1 is greater than half of the width of the flat-edge cutting cutter 3, and the cutting length of the flat-edge negative cutter 2 in the step S2 is greater than half of the width of the flat-edge cutting cutter 3.
As shown in fig. 10, the distance d represents the cutting length of the flat-edged forward blade 1 or the flat-edged backward blade 2, and after the corner is cut, the flat-edged cutting blade 3 performs cutting with the cutting end point of the flat-edged forward blade 1 or the flat-edged backward blade 2 as the starting point, because the cutting length of the flat-edged forward blade 1 or the flat-edged backward blade 2 is greater than half of the width of the flat-edged cutting blade 3, when the flat-edged backward blade 3 performs cutting, the corner is not over-cut or damaged.
According to another embodiment of the invention, the straight flat-edge cutter 1 and the reverse flat-edge cutter 2 are both sheet-shaped structures, one side of each flat-edge cutter is a flat edge, the other side of each flat-edge cutter is a convex edge, wherein the convex edge is connected with the vertical rake face, and the convex edge comprises a first inclined edge 4 and a second inclined edge 5 which are connected in sequence.
In the application, the flat-edge straight knife 1 and the flat-edge reverse knife 2 have the same structural characteristics, are both provided with the convex edge and the flat edge, but have opposite angles. The convex edge comprises a first inclined edge 4 and a second inclined edge 5, so that the flat-edge positive knife 1 and the flat-edge negative knife 2 can obtain cutting capacity.
According to another embodiment of the present invention, the flat-edge cutter 3 is a sheet-shaped structure, one side of which is a flat edge, and the other side of which is a convex edge, wherein the convex edge comprises three oblique edges 6, four oblique edges 7 and five oblique edges 8 which are connected, the three oblique edges 6 and the five oblique edges 8 are symmetrically distributed, and the three oblique edges 6 and the five oblique edges 8 are respectively connected with the flat edge.
According to another embodiment of the present invention, the flat-edge positive cutter 1, the flat-edge negative cutter 2 and the flat-edge cutting cutter 3 are all mounted on the cutter base 13 through a drag cutter structure 9, as shown in fig. 11 to 13, the drag cutter structure 9 comprises a base body 9-1, and a cutter holder head 9-2 for mounting a cutting insert is fixed inside the base body 9-1.
The flat-edge positive cutter 1, the flat-edge reverse cutter 2 and the flat-edge cutter 3 are all fixed on the cutter chuck 9-2, specifically, a strip-shaped groove 14 is formed in the cutter chuck 9-2, the flat-edge positive cutter 1, the flat-edge reverse cutter 2 or the flat-edge cutter 3 are all placed in the strip-shaped groove 14, and then the flat-edge positive cutter, the flat-edge reverse cutter 2 or the flat-edge cutter 3 are pressed and fixed through the pressing block 15.
According to another embodiment of the invention, the lower end of the seat body 9-1 is connected with a material pressing cover 9-3 through a spring, and the material pressing cover 9-3 is provided with a through groove 9-4 for the blade to pass through.
The material pressing cover 9-3 is fixed on the base body 9-1 through a spring, and the blade is coated in a natural state; when cutting, the drag knife structure 9 moves downwards, the pressing cover 9-3 contacts with the material, the spring is compressed, the pressing cover 9-3 moves upwards relative to the seat body 9-1, the blade leaks from the through groove 9-4 to cut, and in addition, the pressing cover 9-3 always presses the material downwards under the action of the spring, so that the pressing cover 9-3 structure can not only prevent the blade from hurting people when not cutting, but also can press the material to a certain extent when cutting, and prevent the material from running.
According to another embodiment of the invention, the base body 9-1 is externally provided with a limiting structure 10, the limiting structure 10 comprises a limiting ring 10-1 and a limiting block 10-2, the limiting block 10-2 is fixedly connected with or integrally formed with the limiting ring 10-1, the limiting ring 10-1 is sleeved on the outer wall of the base body 9-1, the outer wall of the base body 9-1 is provided with a U-shaped groove 11 and at least two groups of adjusting holes 12, the limiting block 10-2 is located in the U-shaped groove 11, and a bolt penetrates through the limiting ring 10-1 to fix the limiting ring in one group of adjusting holes 12.
The position of the limiting ring 10-1 can be finely adjusted through the plurality of groups of adjusting holes 12, namely the position of the limiting block 10-2 can be adjusted, the trailing knife structure 9 is fixed in the knife holder 13, and the limiting block 10-2 can adjust the mounting positions of the trailing knife structure 9 and the knife holder 13, so that the trailing knife structure can adapt to materials with different thicknesses, and the cutting range of the knife is enlarged.
According to another embodiment of the present invention, it further comprises that the trailing blade structure 9 has a rotational degree of freedom in the blade seat 13, the trailing blade structure 9 is driven to rotate by the driving structure, and the blade seat 13 is a liftable blade seat.
As shown in fig. 14 to 16, specifically, the trailing blade structure 9 is driven to rotate in the blade seat 13 through a servo motor and a synchronous wheel transmission; the tool apron 13 is connected with the mounting plate in a sliding mode through a linear guide rail in the vertical direction, and the tool apron 13 is driven to lift through a motor and a screw rod. The flat-edge positive cutter 1, the flat-edge reverse cutter 2 and the flat-edge cutter 3 can independently lift and rotate by an angle, and can meet the requirements of various cutting profiles. The tool apron 13 of the flat-edge positive tool 1, the flat-edge reverse tool 2 and the flat-edge cutting tool 3 are all arranged on a small tool head which is arranged on a machine beam. The trolley head reciprocates on the machine beam, and the switching of the three knives is controlled by software. During cutting, the table top is used for sucking and adsorbing the fixed material, so that the cutting material is prevented from moving to cause cutting size deviation.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A flat-edge cutting method of a hard plate comprises a cutting knife set, wherein the cutting knife set comprises a flat-edge positive knife (1), a flat-edge reverse knife (2) and a flat-edge cutting knife (3),
the flat-edge positive cutter (1) and the flat-edge reverse cutter (2) are both of a sheet structure, one side of the flat-edge positive cutter is a flat edge, the other side of the flat-edge reverse cutter is a convex edge, the convex edge is connected with a vertical rake face and comprises a first inclined edge (4) and a second inclined edge (5) which are sequentially connected, and the cutter angles of the flat-edge positive cutter (1) and the flat-edge reverse cutter (2) are opposite;
the flat-edge cutter (3) is of a sheet structure, one side of the flat-edge cutter is a flat edge, the other side of the flat-edge cutter is a convex edge, the convex edge comprises a three inclined edge (6), a four inclined edge (7) and a five inclined edge (8) which are connected, the three inclined edge (6) and the five inclined edge (8) are symmetrically distributed, the three inclined edge (6) and the five inclined edge (8) are respectively connected with the flat edge,
the specific cutting method is as follows:
step S1: cutting one edge at the corner by using a flat-edge positive knife (1), wherein the flat edge of the flat-edge positive knife (1) is aligned to a required cut piece, the convex edge of the flat-edge positive knife (1) is aligned to an unnecessary cut piece, and the vertical front knife surface of the flat-edge positive knife (1) is aligned to the cutting corner to start cutting;
step S2: cutting the other edge at the corner by using a flat-edge reverse knife (2), wherein the flat edge of the flat-edge reverse knife (2) is aligned to a required cut piece, the convex edge of the flat-edge reverse knife (2) is aligned to an unnecessary cut piece, and the vertical front knife surface of the flat-edge reverse knife (2) is aligned to the cutting corner to start cutting;
repeating the step S1 and the step S2 until all the edges are cut, and then entering the step S3;
step S3: and cutting the middle straight line segment by using the flat-edge cutter (3) until all the straight line segments are cut, wherein the flat edge of the flat-edge cutter (3) is aligned to the required cut piece, and the convex edge of the flat-edge cutter (3) is aligned to the unnecessary cut piece.
2. The method of claim 1, wherein the step S3 is preceded by a step of cutting the circular arc by using a flat-edge straight blade (1) or a flat-edge reverse blade (2), wherein the cutting is started from the beginning of the circular arc, the flat edge of the flat-edge straight blade (1) or the flat-edge reverse blade (2) is aligned with the desired cut pieces, the convex edge of the flat-edge straight blade (1) or the flat-edge reverse blade (2) is aligned with the undesired cut pieces, and the vertical rake face of the flat-edge straight blade (1) or the flat-edge reverse blade (2) is aligned with the beginning of the circular arc.
3. The flat-blade cutting method for hard boards as claimed in claim 1, wherein the cutting length of the flat-blade positive blade (1) in step S1 is greater than half of the width of the flat-blade cutting blade (3), and the cutting length of the flat-blade negative blade (2) in step S2 is greater than half of the width of the flat-blade cutting blade (3).
4. The flat-edge cutting method for hard plates as claimed in claim 1, wherein the flat-edge positive cutter (1), the flat-edge negative cutter (2) and the flat-edge cutting cutter (3) are all mounted on the cutter base (13) through a trailing cutter structure (9), the trailing cutter structure (9) comprises a base body (9-1), and a cutter chuck (9-2) for mounting a cutter blade is fixed inside the base body (9-1).
5. A hard board flat-edge cutting method as claimed in claim 4, wherein the lower end of the seat body (9-1) is connected with a material pressing cover (9-3) through a spring, and the material pressing cover (9-3) is provided with a through groove (9-4) for the blade to pass through.
6. The flat-blade cutting method for hard plates according to claim 4, wherein a limiting structure (10) is arranged outside the base body (9-1), the limiting structure (10) comprises a limiting ring (10-1) and a limiting block (10-2), the limiting block (10-2) is fixedly connected with the limiting ring (10-1) or integrally formed, the limiting ring (10-1) is sleeved on the outer wall of the base body (9-1), the outer wall of the base body (9-1) is provided with a U-shaped groove (11) and at least two sets of adjusting holes (12), the limiting block (10-2) is located in the U-shaped groove (11), and a bolt penetrates through the limiting ring (10-1) to fix the limiting block in one set of adjusting holes (12).
7. A method according to claim 4, wherein the trailing blade structure (9) has rotational freedom within a blade holder (13), the trailing blade structure (9) is driven to rotate by a driving structure, and the blade holder (13) is a liftable blade holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699395.4A CN111673804B (en) | 2020-07-20 | 2020-07-20 | Flat edge cutting method for hard plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010699395.4A CN111673804B (en) | 2020-07-20 | 2020-07-20 | Flat edge cutting method for hard plate |
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| CN111673804A CN111673804A (en) | 2020-09-18 |
| CN111673804B true CN111673804B (en) | 2021-07-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2773828B2 (en) * | 1992-03-26 | 1998-07-09 | 富士写真フイルム株式会社 | Cutting blade for stacked metal plates |
| JP2002366590A (en) * | 2001-06-06 | 2002-12-20 | Hitachi Ltd | Data managing method, its execution system and its processing program |
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