WO2005025819A1

WO2005025819A1 - Cutting machine

Info

Publication number: WO2005025819A1
Application number: PCT/JP2004/013143
Authority: WO
Inventors: Yuji Goda; Hiroshi Nakayama
Original assignee: Yuji Goda; Hiroshi Nakayama
Priority date: 2003-09-10
Filing date: 2004-09-09
Publication date: 2005-03-24
Also published as: JPWO2005025819A1

Abstract

A cutting machine capable of cutting a cloth laminate by the shearing action of a first comb-toothed cutting blade body and a second comb-toothed cutting blade body in association with each other caused by driving the first comb-toothed cutting blade body relative to the second one in an overlapped state. The cutting machine comprises the first comb-toothed cutting blade body (20) and the second comb-toothed cutting blade body (30) having unit edges (21) and (31) of the same quantities continuously formed thereon at equal pitches. The first comb-toothed cutting blade body (20) and the second comb-toothed cutting blade body (30) are overlapped with each other in the thickness direction, and the second comb-toothed cutting blade body (30) is vertically moved to drive it relative to the first comb-toothed cutting blade body (20).

Description

Specification

Cutting machine

Technical field

The present invention relates to a cutting machine, and more particularly, is used for cutting a plurality of sheets such as fabrics together along the outer shape of a pattern attached to an upper surface thereof in a state where a plurality of sheets are stacked. It is a cutting machine.

Background art

[0002] Non-Patent Document 1 discloses a cutting machine that has been used for a long time to cut a plurality of doughs together along the outer shape of a pattern attached to the upper surface thereof. ing. This conventional cutting machine has the configuration shown in FIG. That is, the cutting machine is moved up and down by the driving force of the base a, the guide post b erected on the base a, the drive main body c connected to the upper end of the guide post b, and the drive main body c. And a cutting blade d to be moved. The drive body c has a built-in crank mechanism e that converts the rotational force of a motor i attached thereto into a vertical reciprocating motion. The reciprocating member of the crank mechanism e includes a cutting blade d. Are connected at its upper end. In addition, the drive main body c is provided with a handle which is grasped by an operator, and supports a cloth holder g which can be adjusted vertically. The guide column b has a role as a guide member for guiding the cutting blade d by fitting and holding the back of the cutting blade d so as to be vertically slidable. The cutting blade d has a sharp edge at the front edge and an inclined edge at the lower edge. A plurality of rolling rollers h are attached to the base a so that the base a can move on a plane such as a table with little resistance. When the motor i is driven, the cutting blade d guided by the guide post b as described above reciprocates upward and downward.

Non-Patent Document 1: Photograph of “APN (Apparel Production News)” published by Nippon Sewing Machine Co., Ltd. on November 1, 2002, page 14

[0003] In this cutting machine, a plurality of doughs to be cut are stacked and placed on a flat table or the like, and the periphery thereof is fixed to a table. Drive the motor i to move the cutting blade d up and down while the base It is handled so that the cutting blade d moves along the outer shape of the pattern attached to the upper surface of the base laminate. At this time, the height is adjusted so that the dough presser g contacts the upper surface of the dough laminate with an appropriate pressure. Since the rolling roller h is attached to the base a of the cutting machine as described above, the cutting machine itself has little frictional resistance to the table. The movement path of the cutting blade d is controlled by the worker who grasps the handle f. The dough laminate is cut by the scrubbing action of the leading edge of the cutting blade d.

[0004] As a fabric laminate, for example, a plurality of fabrics are laminated so that a denim fabric has a thickness of about 5 cm. Such a dough laminate is cut by rubbing with the cutting blade d, but because of the rubbing, the frictional resistance between the dough laminate and the cutting blade d during cutting is very large. The motor i must have a high output, and the crank mechanism e must also have a high-strength configuration corresponding to such a high-output motor i. In addition, since rub cutting generally has low cutting efficiency, it is necessary to set a relatively large reciprocating stroke of the cutting blade d. Due to such a problem, the conventional cutting machine described above has a problem in that the overall weight is large and handling! Is troublesome!

[0005] Furthermore, the above-mentioned cutting blade which performs cutting by rubbing is intensely worn and needs to be frequently polished, and generally has a short service life. Fabrics and the like using such materials cannot be cut. In addition, such a cutting machine using rubbing cuts generates a large amount of heat of abrasion at the time of cutting. For example, when cutting a laminate of resin sheets, heat cutting between the resin sheets is caused, which is not suitable. Absent.

[0006] Power! In addition, since the guide post b needs strength to support the heavy drive body c as described above, it is difficult to keep the thickness of the guide post b below a certain level. It is also difficult to make the front and rear width including d less than a certain value. Therefore, the fabric laminate is cut while being spread left and right by the relatively wide guide pillars b, so that a large force is required for the operator to push the cutter forward, and workability is poor. In addition, the task of cutting along a curved moving path is still difficult, and it is practically impossible to cut the fabric laminate along a curve having a radius of curvature equal to or less than a predetermined radius.

Disclosure of the invention

Problems the invention is trying to solve [0007] Therefore, the present invention provides a new cutting machine that can perform a cutting operation more smoothly, has a longer life of the cutting blade, and can perform cutting along a curve having a small radius of curvature. That is the subject.

Means for solving the problem

[0008] In order to solve the above problems, the present invention employs the following technical means.

That is, the cutting machine provided by the first invention of the present application comprises a base, a support erected on the base, a main body connected to the upper end of the support, and the base and the main body. A first comb tooth-shaped cutting blade and a second comb tooth-shaped cutting blade which are arranged so as to overlap in the thickness direction therebetween and are relatively moved vertically. .

[0009] As a specific embodiment of the first invention, the first comb tooth-shaped cutting blade has a lower end fixed to the base and an upper end fixed to the main body, or The second comb-shaped cutting blade is a moving blade that is vertically moved by a motor built in the main body.

[0010] As a more specific embodiment of the first invention, the movable blade body has a comb-like shape continuously formed at the same number and at the same pitch on each of the fixed blade body and the movable blade body. It can be moved up and down with a reciprocating stroke slightly larger than the unit pitch.

[0011] Further, as a more specific embodiment of the first invention, the main body includes a motor and a motor and a motor that converts the rotation of the motor into a reciprocating motion in a vertical direction. In addition, the moving blade body can be moved up and down by this movement variation.

As a preferred embodiment of the first invention, the fixed blade is integrally fixed to a disk detachably fixed to the base.

In another preferred embodiment of the first invention, a first comb-shaped cutting blade serving as the fixed blade also serves as the support.

[0014] In another preferred embodiment of the first invention, the main body includes a cylindrical portion having a vertical axis.

[0015] Further, as another preferred embodiment of the first invention, a top portion of the cylindrical portion of the main body portion is provided. A push switch for turning the motor on and off is provided.

[0016] In another preferred embodiment of the first invention, the base has a circular planar shape whose center is substantially at the lower end position of the column.

Further, as another preferred embodiment of the first invention, a part or the whole of the surface of the first comb-shaped cutting blade and Z or the surface of the second comb-shaped cutting blade is provided. Has a protective layer formed thereon.

Next, the cutting machine provided by the second invention of the present application is capable of moving in an XY direction above a horizontal worktable, and having a center selected about a vertical axis at a position selected in the XY direction. A cutting device having a first comb-tooth-shaped cutting blade and a second comb-tooth-shaped cutting blade extending downward from the cutting head. And the first comb-shaped cutting blade and the second comb-shaped cutting blade are superposed in the thickness direction and built in the cutting head. It is characterized in that it can be driven up and down relatively by a motor.

[0019] As a specific embodiment of the second invention, the first comb tooth-shaped cutting blade is a fixed blade whose upper end is fixed to the cutting head, and The tooth-shaped cutting blade is a movable blade that is moved up and down at its upper end, and the first comb tooth-shaped cutting blade and the second comb tooth-shaped cutting blade are in an overlapping state. Are guided relative to each other so that they can move up and down relative to each other.

[0020] Further, as a more specific embodiment of the second invention, the second comb-shaped cutting blade includes a first comb-shaped cutting blade and a second comb-shaped cutting blade. It is slightly larger than the formation pitch of the unit blades continuously formed at the same number and at the same pitch on each body, and is moved up and down by a reciprocating stroke.

Further, as a preferred embodiment of the second invention, the first comb tooth-shaped cutting blade and Z or a part or all of the surface of the second comb tooth-shaped cutting blade are protected. Layer is formed.

The invention's effect

According to the cutting machine provided by the first invention of the present application, the comb is inserted while the base is sunk between the table and the laminated material such as the cloth placed on the flat table. When the cutting work is performed by reciprocating the tooth-shaped moving blade, the first comb-shaped cutting blade (fixed blade) and the second comb-shaped cutting blade (moving blade) cooperate. Since the above-mentioned laminate is cut by the shearing action, cutting by shearing action is overwhelmingly more efficient than conventional slicing, so that the motor for reciprocating the two comb-tooth-shaped cutting blades relative to each other is used. Output can be reduced. Since the frictional force received by the comb-shaped cutting blades from the laminated material such as the cloth is small, the life of the comb-shaped cutting blades is extended. Also, the relative reciprocating stroke of the two comb-tooth-shaped cutting blades is slightly larger than the tooth pitch of the comb teeth. Therefore, the mechanism for converting the rotational motion of the motor into reciprocating motion is also reduced in size and efficiency. Can be good. As described above, the motor and the movement mechanism are reduced in size and weight, and as a result, the column supporting the main body with respect to the base can also be made narrower, thereby enabling the laminate such as cloth to be formed. During the cutting, the resistance from the laminated material such as the fabric is reduced. Therefore, the operator can push the cutter forward with a relatively small force. Furthermore, since the support can be made narrow, the front and rear widths of the first and second comb-shaped cutting blades including the support can also be reduced, so that the planned cutting path having a small radius of curvature can be achieved. Can proceed without any problems. As described above, according to the cutting machine having the above-described configuration, the cutting operation can be performed more smoothly by reducing the weight and size, and the life of the cutting blade is long, and the cutting machine follows a curve having a small radius of curvature. Cutting is also possible.

Next, according to the cutting machine provided by the second invention of the present application, the cutting head is automatically moved in the XY direction according to the data of the cutting path, and the cutting head is rotated to thereby The present invention is applied to a cutting machine configured to cut a laminated material such as a dough arranged on a work table. Also in this case, the above-mentioned laminate is formed by relatively driving the first comb-tooth-shaped cutting blade body and the second comb-tooth-shaped cutting blade body in the vertical direction in a superposed state. Is done. Therefore, it is clear that the same advantages as those described above for the first invention of the present application can be obtained also by the cutting machine according to the second invention.

Brief Description of Drawings

FIG. 1 is an overall external perspective view of a cutting machine according to a first embodiment of the present invention. FIG. 2 is a front view of the cutting machine shown in FIG. 1.

FIG. 3 is a perspective view of a base and a fixed blade.

FIG. 4 is an enlarged sectional view of a main part along the line IV-IV in FIG. 1.

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 4.

[6] Fig. 6 is an explanatory diagram of a cutting action by a fixed blade and a movable blade. [7] FIG. 7 is a schematic perspective view for explaining an example of a movement variation. FIG. 8 is an explanatory diagram of a method of using the cutting machine according to the embodiment.

[9] FIG. 9 is a plan view of a cutting machine according to a second embodiment of the present invention.

FIG. 10 is an enlarged sectional view taken along line XX of FIG. 9.

FIG. 11 is an enlarged sectional view taken along line XI-XI in FIG.

FIG. 12 is an enlarged cross-sectional view taken along line ΧΠ-ΧΠ of FIG.

FIG. 13 is an enlarged sectional view taken along the line XIII—XIII in FIG.

FIG. 14 is an explanatory diagram of a conventional example.

Explanation of symbols

1 Cutting machine

1A cutting machine

2 props

10 Base

10a Stepped hole

11 Guide hole

12 disks

20 Fixed blade (first comb-shaped cutting blade)

20A blade

20a sliding surface

21 unit blade

21a edge

21b edge

30 Moving blade (second comb-shaped cutting blade) 30A blade

30a sliding surface

31 unit blade

31a edge

31b edge

40 Main unit

40A cutting head

41 Cylindrical part

42 E / Leda block

43 Connecting Block

45 Moving parts

46 rods,

48 switches

50 Motion conversion mechanism

51 motor

52 Worm gear

53 Worm wheel

54 Rotating member

54a Eccentric shaft

55 Sliding member

61 X direction guide

62 Y-direction guide

63 Cutting head support

64 motor

65 long hole

66 pin

S horizontal table (work table)

Sa fiber Sb horizontal base

R dough laminate

BEST MODE FOR CARRYING OUT THE INVENTION

[0026] The first comb tooth-shaped cutting blade has the object of performing the cutting operation more smoothly, extending the life of the cutting blade, and enabling cutting along a curve with a small radius of curvature. And the second comb tooth-shaped cutting blade are driven relative to each other in a superposed state, and the fabric laminate is produced by the cooperative shearing action of the first comb tooth-shaped cutting blade and the second comb tooth-shaped cutting blade. This was achieved by cutting off.

Example 1

FIG. 1 and FIG. 2 show an overall appearance of a cutting machine 1 according to a first embodiment of the present invention. The cutting machine 1 has a generally thin base 10 having a circular shape in a plan view, a thin peripheral edge, and a thickness increasing slightly toward the center, and a lower end fixedly connected to substantially the center of the base 10. And a vertically extending comb-shaped fixed blade body 20, a main body part 40 fixedly connected to the upper end of the fixed blade body 20, and a comb-shaped fixed blade body 20 that moves vertically The moving blade body 30 is provided. The fixed blade 20 in this embodiment corresponds to the first comb-shaped cutting blade in the present invention, and the movable blade 30 corresponds to the second comb-shaped cutting blade in the present invention. Further, in this embodiment, the fixed blade body 20 also serves as the column 2 that supports the main body 40 with respect to the base 10. As shown in FIGS. 3 and 4, the base 10 is formed with a stepped hole 10a having a large-diameter hole and a small-diameter hole at the center thereof. A disk 12 having a guide hole 11 is fitted into the hole, and the disk 12 is fixed to the base 10 by, for example, screws 13. The lower end of the fixed blade 20 passes through the guide hole 11 of the disk 12, and the lower end of the fixed blade 20 is integrated with the disk 12 by, for example, welding on the lower surface side of the disk 12. It is fixed. As a result, the fixed blade 20 is erected vertically with respect to the disc 12 to the base 10, and the movable blade 30 is guided by the fixed blade 20 to be perpendicular to the disc 12 to the base 10. It is possible to move up and down.

The main body 40 has a cylindrical portion 41 of a predetermined length having a vertical center axis at an upper portion thereof, and an upper end of the movable blade 30 is connected below the cylindrical portion 41. Moving member A holder block 42 for holding the holder 45 so as to be able to move up and down is extended, and a connecting block 43 for fixing and connecting the upper end of the fixed blade 20 is extended from the lower end of the holder block 42. . As shown in FIG. 4, the upper end side surface of the fixed blade body 20 is applied to the side surface of the connection block 43, and the two are fixed by, for example, screws 44.

[0029] On the other hand, the moving member 45 includes a block 45a positioned adjacent to the connection block 43 and a rod 46 integrally extending upward from the block 45a. 46 is held by the holder block 42 so as to be vertically slidable. As shown in FIG. 4, the side surface of the block 45a of the moving member 45 is applied to the upper end side surface of the moving blade body 30 positioned so as to overlap the fixed blade body 20. Is fixed. The movable blade body 30 has a lower end portion inserted through a guide hole 11 of the disk 12 fixed to the base 10, and the lower end portion is a free end. The left and right width of the guide hole 11 is set to be slightly larger than the thickness of the fixed blade 20 and the movable blade 30 overlapped with each other, so that the movable blade 30 maintains the overlapping state with the fixed blade 20. And relative movement in the vertical direction is possible. In other words, the fixed blade body 20 reciprocates in the vertical direction while maintaining the gap between the fixed blade body 20 and the movable blade body 30 by the guide hole 11 of the disk 12 as small as possible.

[0030] Details of the fixed blade body 20 and the movable blade body 30 are shown in Figs. 4, 5 and 6. The fixed blade body 20 and the movable blade body 30 are plate-shaped members each extending in the longitudinal direction with a predetermined thickness as a whole, and comb-shaped blade portions 20A and 30A are formed along one side edge thereof. ing. Thus, the fixed blade body 20 and the movable blade body 30 are overlapped with each other such that the inner surfaces thereof are rubbed surfaces 20a, 30a such that the rubbed surfaces 20a, 30a are in sliding contact with each other. The blade portions 20A and 30A have a shape in which a plurality of unit blades 21, 31 each having a generally triangular mountain shape are formed in the same number along the one side edge of each of the fixed blade body 20 and the movable blade body 30 and are continuously formed at equal pitches. have. The blade portions 20A, 30A are formed such that the outer surface is closer to the inner surface (the rubbing surfaces 20a, 30a) toward the edge portion, and the unit blades 21, 31 have a sharp tip. I have. Rib-shaped ridges 22, 32 are formed on the outer surface side of the unit blades 21, 31, respectively, to maintain the strength of the unit blades 21, 31. The fixed blade 20 and the movable blade 30 are made of, for example, carbon steel or high-speed steel. And the like, and is subjected to a surface effect treatment by appropriate quenching. A part or all of the surfaces of the fixed blade body 20 and the movable blade body 30 may be made of titanium nitride, diamond-like carbon, silicon-carbon-based mono-refractive alloy, or the like, for wear resistance, heat dissipation, or It is desirable to apply a protective coating with excellent sliding performance.

[0031] A force that causes relative movement between the fixed blade body 20 and the movable blade body 30 when the movable blade body 30 reciprocates in the vertical direction. The reciprocating stroke of the movable blade body 30 is, for example, a unit. The pitch is set to be slightly larger than the formation pitch of the blades 21 and 31. The pitch at which the unit blades 21 and 31 are formed is appropriately set according to the object to be cut, and is set, for example, to about 3 to 6 mm. In order for the movable blade 30 to reciprocate in the vertical direction, the height of the stepped hole 10a of the base 10 through which the lower end of the movable blade 30 passes is larger than the reciprocating stroke of the movable blade 30. When the reciprocating stroke force of the movable blade 30 is, for example, about 3 to 6 mm, the thickness of the central portion of the base 10 is set to, for example, about 417 mm.

More specifically, the moving stroke of the movable blade 30 is set such that the unit blade 31 alternately overlaps two adjacent unit blades 21 in the fixed blade 20. As shown in FIG. 6, when the unit blade 31 of the movable blade 30 overlaps one unit blade 21 of the fixed blade 20 at one end of the moving stroke, the object is located in the space between the blades of the unit blades 21 and 31. When the moving blade 30 moves to the other end of the moving stroke in the direction of the arrow p so as to overlap the adjacent unit blade 21 on the fixed blade 20 and the edge 31a of the unit blade 31 on the moving blade 30 and the fixed blade. The object is cut by the shearing action between the edge 21a of the unit blade 21 in the body 20. Conversely, when the movable blade 30 moves back to one end of the movement stroke in the direction of arrow q, the edge 31b of the unit blade 31 on the opposite side of the unit blade 31 on the movable blade 30 and the unit blade 21 on the fixed blade 20 are opposite. The object is cut by the shearing action with the edge 21b opposite to the above. Such cutting action by shearing is performed by interaction between all the unit blades 21 and 31 provided in the fixed blade body 20 and the movable blade body 30 in a comb shape.

The vertical reciprocating movement of the movable blade 30 as described above is obtained by converting the rotation of the electric motor 51 built in the main body 40 into a vertical reciprocating motion by the motion converting mechanism 50. be able to. One example of such a movement structure 50 is schematically shown in FIG. [0034] The motor 51 is disposed in the main body 40 so that its output shaft is directed vertically downward, and a worm gear 52 is attached to the output shaft of the motor 51. The worm gear 52 is engaged with a worm wheel 53, and a rotating member 54 that rotates the rotating shaft in the horizontal direction is coaxially and integrally attached to the worm wheel 53. An eccentric shaft 54a protrudes from the rotating member 54, and a long hole 55a or a slit of a driven power member 55 attached to the upper end of the rod 46 of the moving member 45 is engaged with the eccentric shaft 54a. I have. The long hole 55a or the slit has a long axis oriented in the horizontal direction. The width corresponds to the diameter of the eccentric shaft 54a and can be inserted and engaged with the eccentric shaft 54a, and allows the horizontal movement of the eccentric shaft 54a. Have a sufficient length. Thus, the vertical reciprocation of the moving member 45 to the moving blade 30 is achieved by the rotation of the electric motor 51. In addition, the dimensional force corresponding to twice the amount of eccentricity of the eccentric shaft 54a defines the reciprocating motion stroke of the moving member 45 to the moving blade 30.

In this embodiment, a pressing switch 48 for turning the electric motor 51 on and off is provided at the top of the cylindrical portion 41 in the main body 40. The push switch 48 has a dome shape and is always urged to return to its original position, and its top power cord 49 is extended. A switch element (not shown) pushes down the push switch 48 against the above-mentioned biasing force, turns the electric motor 51 on when the switch 48 is turned on, and turns off the electric motor 51 when the switch is pressed. Set to state!

Next, a method of using the cutting machine 1 having the above configuration will be described. As shown in FIG. 8, for example, a plurality of denim fabrics are stacked and placed on a horizontal table S such as a table. The overall thickness of the dough layered product R is selected to be an appropriate thickness according to the upper and lower lengths of the blade portions 20A and 30A of the fixed blade body 20 and the movable blade body 30. In such a dough laminate R, for example, an appropriate portion of the periphery is fixed to the horizontal base S. A paper pattern (not shown) is attached to the upper surface of the dough laminate R.

[0037] The cutting machine 1 is held by an operator so as to grip the cylindrical portion 41, and the fixed blade body 20 and the movable blade body 30 have the blade portions facing forward. Dive between R and horizontal platform S. At this time, since the base 10 has a circular shape in a plan view and a thin peripheral portion, the dough laminate R which is not easily hooked on the dough R And the horizontal platform S. By pressing the dome-shaped switch 48, the electric motor 51 can be turned on, and the movable blade 30 starts a reciprocating motion with respect to the fixed blade 20. In this state, when the main body 40 is pushed forward, the cutting action of the moving blade 30 and the fixed blade 20 due to the shearing can be performed to cut the fabric laminate R. At this time, since the cylindrical portion 41 plays a role like a grip window, the operation of appropriately changing the direction in which the dough layered product R is cut can be performed very easily. Further, the switch 48 can be operated with the thumb of the hand while holding the cylindrical portion 41, and the on / off state of the electric motor 51 can be easily selected. As described above, the fixed blade body 20 is erected perpendicularly to the disc 12 to the base 10 and the movable blade body 30 is configured to move up and down along the fixed blade body 20. By squeezing the base 10 between the dough laminate R and the horizontal table S, the dough laminate R can be cut perpendicularly to the upper surface thereof. It is possible to cut accurately. As described above, since the fixed blade 20 and the movable blade 30 perform a cutting action by shearing, efficient cutting can be performed, and the stroke of the movable blade 30 is relatively small. The motor 51 can have a relatively small output, and the force and the movement mechanism 50 can have a simple structure. Thus, the size and weight of the main body 40 can be reduced. In addition, the thickness and the front-rear width of the fixed blade body 20, which also serves as the support column 2 for supporting the main body portion 40 with respect to the base 10, can be reduced. Accordingly, the thickness and the front-rear width of the movable blade 30 can also be reduced. Accordingly, the overall thickness and the front-rear width of the fixed blade 20 and the movable blade 30 can also be reduced. As a result, it is possible to easily cut the dough laminate R along the curved scheduled shear path having a relatively small radius of curvature. In addition, since the cutting is performed by shearing, the generation of frictional heat is small, and the cutting of the resin sheet laminate can be performed in the same manner as the cutting of the dough laminate R, and the fabric such as Kevlar which has strong fiber strength can be cut. Cutting can be done without any problems. Further, since the stroke of the movable blade 30 can be reduced, the thickness of the base 10 can be reduced, and the thickness and the weight of the base 10 can be reduced. Thus, the base 10 can be smoothly sunk between the base laminate R and the horizontal platform S, and the cutting operation can be performed smoothly. Further, as described above, since the fixed blade body 20 is integrally fixed to the disk 12 detachably fixed to the base 10, when the fixed blade body 20 is replaced, the base 10 is left as it is. Only the fixed blade 20 and the disk 12 can be replaced, so that renewal costs can be reduced.

[0040] Further, as described above, since the fixed blade body 20 also serves as the support column 2, it is not necessary to prepare another member as the support column 2 for connecting and supporting the main body portion 40 to the base 10. The cost and light weight can be reduced due to the decrease in the number of parts, and the overall thickness and front-to-rear width of the support 2, fixed blade 20, and moving blade 30 can be further reduced. The cutting work can be performed more effectively.

Further, as described above, since the main body 40 is provided with the cylindrical portion 41 having an axis in the vertical direction, the cutting device is held while holding the cylindrical portion 41 of the main body 40 like a grip nozzle. 1 The cutting work can be performed by pushing the whole in a desired direction. In addition, the operating force of the operator is effectively transmitted to the cutting machine 1, and the direction can be easily changed when the cutting machine is moved along the curved scheduled cutting path. Therefore, the cutting machine 1 having this configuration is extremely convenient to use.

[0042] As described above, since the pressing switch 48 for turning the motor 51 on and off is provided at the top of the cylindrical portion 41 of the main body 40, the cylindrical main body is formed like a grip handle. When the cutting operation is performed by gripping the portion 40, the turning on / off operation of the motor 51 can be easily performed by the thumb or the like of the gripping hand regardless of the direction in which the cylindrical body portion 41 is gripped. Can be performed. Therefore, the cutting machine 1 having this configuration is more convenient to use.

Further, as described above, the base 10 has a circular flat surface shape substantially centered on the lower end position of the support column 2, and therefore, regardless of the direction of the main body 40, the base 10 can be made of cloth or the like. The operation to squeeze the base 10 between the laminate R and the table S can be performed smoothly without being caught.

As described above, a part or all of the surfaces of the fixed blade body 20 and the movable blade body 30 are preferably provided with a wear-resistant coating. It becomes necessary to grind the blade portions 20A and 30A of the body 20 and the movable blade body 30. like that Even in this case, since the coating layer of the rubbing surfaces 20a and 30a of the fixed blade 20 and the movable blade 30 still exists, the blade portions 20A and 30A of the fixed blade 20 and the movable blade 30 are present. The abrasion resistance or the sliding performance between the two is not extremely reduced.

Example 2

FIGS. 9 to 13 show a cutting machine 1A according to a second embodiment of the present invention. This cutting machine 1A is provided with a cutting head 40A that can move in the XY direction above a horizontal worktable S and that can rotate about a vertical axis at a position selected in the XY direction.ヽMore specifically, an X-direction guide 61 is arranged on the opposite side of the horizontal base S, and both ends of the Y-direction guide 62 are supported on the X-direction guide 61 so as to be movable along the X direction. Have been. A cutting head supporting member 63 is supported by the Y-direction guide 62 so as to be movable along the Y direction. The cutting head 40A is rotatably supported on the cutting head support member 63 about a vertical axis via a motor 64 whose rotation can be controlled. The Y-direction guide 62 is driven and controlled in the X-direction by a linear drive mechanism such as a ball screw mechanism or a rack and pin mechanism (not shown). The cutting head support member 63 is driven and controlled in the Y direction by a linear drive mechanism such as a ball screw mechanism or a rack and pin mechanism (not shown). Therefore, the cutting head 40A can be moved along the intended cutting path while being rotated so as to face a tangent to the cutting path. The control of the movement and the direction of the cutting head 40A is performed based on the data on the cutting path based on the control of the linear drive mechanism of the X-direction guide 61 and the Y-direction guide 62 and the rotation control of the cutting head 40A. Can be achieved by integrating

The cutting head 40A has a comb-tooth shape by a mechanism equivalent to the connection support structure of the fixed blade body 20 and the movable blade body 30 with respect to the main body 40 in the cutting machine 1 according to the first embodiment. The fixed blade body 20 and the comb-shaped movable blade body 30 are supported at upper ends, respectively. That is, as shown in FIGS. 10 and 11, below the cutting head 40A, a holder block 42 that supports a moving member 45 to which the upper end of the moving blade 30 is connected so as to be able to move up and down is extended. At the same time, a connecting block 43 for connecting and fixing the upper end of the fixed blade body 20 is extended from the lower end of the holder block. This connecting block 43 The upper end side surface of the fixed blade body 20 is applied to the side surface, and the both are fixed by screws 44. Also in the second embodiment, the fixed blade 20 corresponds to the first comb-shaped cutting blade of the present invention, and the movable blade 30 corresponds to the second comb-shaped cutting blade of the present invention.

On the other hand, the moving member 45 includes a block 45a positioned adjacent to the connection block 43, and a rod 46 integrally extending above the block 45a. Are held by the holder block 42 so as to be vertically slidable. The upper end side surface of the movable blade body 30 positioned so as to overlap the fixed blade body 20 is applied to the side surface of the block 45a of the movable member 45, and both are fixed by screws 45.

[0048] In the cutting machine 1A of this embodiment, since the lower ends of the fixed blade body 20 and the movable blade body 30 are free ends, while maintaining a state in which both are overlapped in the thickness direction, One of the fixed blade body 20 and the movable blade body 30 guides the other so that relative movement is possible in the upward and downward directions. In this embodiment, as shown in FIGS. 12 and 13, the fixed blade body 20 is provided with a plurality of elongated holes 65 extending in the longitudinal direction, and the base end is fixed to the side surface of the movable blade body 30 by caulking. A pin 66 extending in the thickness direction of the body and having an enlarged diameter head 66a is engaged with each elongated hole 65. The movable distance of the pin 66 allowed by each elongated hole 65 is at least larger than the moving stroke of the movable blade 30 with respect to the fixed blade 20. Of course, the configuration for guiding the fixed blade body 20 and the movable blade body 30 so as to be relatively movable in the vertical direction in a state of being overlapped with each other is not limited to this.

The reciprocating motion of the movable blade 30 in the vertical direction as described above converts the rotation of the motor incorporated in the cutting head 40A into a reciprocating motion in the vertical direction, and converts the rotation into the reciprocating motion of the rod 46 to the moving block 45a. The movement may be transmitted as a movement, and the mechanism described above with reference to FIG. 7 may be adopted as such a movement variation.

The details of the fixed blade body 20 and the movable blade body 30 and the cutting action thereof are the same as those described above with reference to FIGS. 4, 5, and 6, and therefore, detailed description thereof will be omitted. .

FIG. 10 and FIG. 11 show how the laminate R is cut by the cutting machine 1A in this embodiment. A horizontal worktable S has a laminate R in which a plurality of denims are laminated. The worktable S has a surface configuration that allows the lower end of the fixed blade body 20 and the movable blade body 30 to squeeze to some extent, while stably mounting the laminate R. I have it. In order to realize such a surface form of the worktable S, for example, a method is employed in which the fibers Sa having a certain degree of rigidity and the same length are densely implanted on the worktable S.

[0052] When the moving blade 30 is reciprocated while moving the cutting head 40A while controlling the direction so as to face the tangential direction along the planned cutting path, the laminate R moves. The blade 30 and the fixed blade 20 are cut by the above-mentioned shearing action. It is as described above that the cutting action by such shearing is performed efficiently, and therefore, even in the cutting machine 1A having this configuration, the life of the movable blade 30 and the fixed blade 20 can be extended. In addition, since the frequency of grinding can be reduced and the front and rear width and thickness of the fixed blade 20 and the movable blade 30 can be reduced, the laminate R along the cutting path having a relatively small radius of curvature can be formed. As described above in the first embodiment of the present invention, the cutting can be easily performed, and further, since the generation of the frictional heat is small, the cutting of the resin sheet or the like can be performed without any problem. You can enjoy the same advantages as.

[0053] Of course, the scope of the present invention is not limited to the above-described embodiments, and any modifications within the scope of the matters described in each claim are included in the scope of the present invention.

In the cutting machine 1 according to the first embodiment of the present invention, in particular, the external shape of the main body 40 and the arrangement position of the switch 48 can be variously selected, and the rotation of the electric motor 51 can be selected. The motion converting mechanism 50 that converts the motion into the reciprocating motion of the moving member 45 to the moving blade body 30 is not particularly limited as long as the same function can be achieved.For example, a crank mechanism or another mechanism may be used. Is also possible. Incidentally, other than the movement mechanism 50 shown in FIG. 7, for example, an eccentric cam that is attached to an output shaft facing vertically downward of the motor 51 and is rotated by the motor 51 and fitted around the outer periphery of the eccentric cam, A cylindrical cam holder that reciprocates in the left-right direction by the outer peripheral surface of the eccentric cam slides on the inner peripheral surface with the rotation of the eccentric cam, and an angle formed in an inverted L shape and bent at a right angle Part is pivotally supported around an axis perpendicular to the axis of the output shaft of the motor 51, and a swing lever with the cam holder pivotally mounted at one vertical end thereof; It is movably supported, and one horizontal end of the swing lever is pivotally attached to one vertical end, and the motor 51 When the eccentric cam is rotated by the motor 51, the moving blade 30 is composed of an elevating lever mounted directly or via the moving member 45 so as to coincide with the axis of the output shaft. The reciprocating movement of the holder in the left-right direction causes the swing lever to reciprocate about an axis perpendicular to the axis of the output shaft of the motor 51, and the lift lever moves in conjunction with the reciprocating swing motion of the swing lever. A movement variation in which the movable blade 30 is reciprocated up and down by reciprocating up and down is also possible. This motion variation makes it easier to match the axis of the output shaft of the motor 51 with the axis of the movable blade 30 as compared with the motion variation 50 shown in FIG. Further, in the embodiment, the fixed blade body 20 also serves as the column 2, but it is of course possible to configure the column 2 with another member.

Further, in common with the cutting machines according to the first embodiment and the second embodiment, in the embodiment, the first comb-shaped cutting blade is a fixed blade 20, and the second comb is By making the tooth-shaped cutting blade body a movable blade body 30, a force that causes both to move relative to each other in a superposed state is obtained by using both the first comb-shaped cutting blade body and the second comb-shaped cutting blade body. Of course, it is also possible to make the two move relative to each other by moving. Of course, it is also possible to change the edge blade angle of each unit blade 21, 31 in the fixed blade body 20 and the movable blade body 30 according to the material to be cut. Further, in the first embodiment and the second embodiment, the fixed blade body 20 and the movable blade body 30 have comb-shaped blade portions 20A and 30A formed only on one side edge thereof. Of course, it is also possible to form comb-shaped blade portions on both side edges thereof. In this way, if the blades are formed on both the side edges of the fixed blade 20 and the movable blade 30, the life of the fixed blade 20 and the movable blade 30 can be greatly extended, and the frequency of blade replacement is reduced. Thus, it is possible to reduce the work efficiency loss and the cost reduction accompanying the replacement of the blade. Furthermore, in the second embodiment, the fixed blade body 20 and the movable blade body 30 have their tips (lower ends) formed flat, but if the tips are formed as sharp as the tip of a spear, The fixed blade body 20 and the movable blade body 30 can be easily sunk into the laminate R, and cutting can be performed without any problem by the thrust of the laminate R.

[0056] If necessary, a dough retainer for pressing the upper surface of the dough laminate to prevent the dough from being lifted can be provided.

Claims

The scope of the claims

[I] a base, a support erected on the base, and a main body connected to an upper end of the support.

A first comb-shaped cutting blade and a second comb-shaped cutting blade, which are arranged between the base and the main body so as to overlap in the thickness direction, and are relatively moved vertically. A cutting machine characterized by having a cutting machine.

[2] The first comb-shaped cutting blade body has a lower end fixed to the base and an upper end fixed to the main body, or a fixed blade fixed to the column. 2. The cutting machine according to claim 1, wherein the second comb-shaped cutting blade is a moving blade which is vertically moved by a motor built in the main body.

[3] The movable blade body is moved up and down with a reciprocating stroke slightly equal to the number of the fixed blade body and the movable blade body, and slightly larger than the pitch of the comb-shaped unit blades continuously formed at the same pitch. 3. The cutting machine according to claim 2, wherein the cutting machine is operated.

[4] The main body incorporates a motor and a motion conversion mechanism that converts the rotation of the motor into a reciprocating motion in the vertical direction, and the motion conversion mechanism causes the moving blade body to move up and down. The cutting machine according to claim 2 or 3, wherein the cutting machine is used.

5. The cutting machine according to claim 2, wherein the fixed blade is integrally fixed to a disk detachably fixed to the base.

6. The cutting machine according to claim 2, wherein the fixed blade also serves as the support.

[7] The cutting machine according to any one of claims 1 to 6, wherein the main body includes a cylindrical portion having a vertical axis.

[8] The cutting machine according to claim 7, wherein a pressing switch for turning on / off the motor is provided at a top of the cylindrical portion of the main body.

[9] The cutting machine according to claim 7, wherein the base has a circular planar shape substantially centered on the lower end position of the column.

10. The protective layer is formed on part or all of the surface of the first comb-shaped cutting blade and Z or the second comb-shaped cutting blade. Cutter described in Crab.

[II] It is possible to move in the XY direction above the horizontal workbench, and the position selected in the XY direction A cutting device having a cutting head rotatable about a vertical axis in

The cutting head is provided with a first comb tooth-shaped cutting blade body and a second comb tooth-shaped cutting blade body extending downward from the cutting head. The toothed cutting blade and the second comb-shaped cutting blade are superposed in the thickness direction, and are relatively driven in the vertical direction by a motor built in the cutting head. Machine.

[12] The first comb-shaped cutting blade is a fixed blade fixed at the upper end to the cutting head, and the second comb-shaped cutting blade is moved up and down at the upper end. The first comb-shaped cutting blade and the second comb-shaped cutting blade, which are moving blades, are mutually moved so that they can be relatively moved in the vertical direction while maintaining a superposed state. 12. The cutting machine according to claim 11, which is guided by V.

[13] The second comb-shaped cutting blades are continuously formed at the same number and at the same pitch on each of the first comb-shaped cutting blade and the second comb-shaped cutting blade. 13. The cutting machine according to claim 11, wherein the cutting machine can be moved up and down with a reciprocating stroke slightly larger than a unit blade forming pitch.

[14] The protective layer according to any one of claims 11 to 13, wherein a protective layer is formed on part or all of the surface of the first comb-shaped cutting blade and Z or the second comb-shaped cutting blade. Cutting machine.