JP3326060B2 - Tapered metal sheet cutting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a taper-shaped sheet metal cutting machine capable of extremely accurately and efficiently cutting and forming a tapered sheet metal from a sheet metal raw material.

[0002]

2. Description of the Related Art Conventionally, a metal building plate is formed by appropriately processing a thin metal sheet raw material, and various types of roofs, walls, and other enclosures are constructed on the building plate. I have. Recently, dome-type outer enclosures have been increasing, and architectural plates constituting the dome-type outer enclosure have a tapered shape. Such architectural plates are cut out of a tapered metal sheet made into a substantially tapered shape from a sheet metal raw material,
Further, the widthwise end portions of the tapered metal sheet are appropriately bent and formed.

[0003] In order to form such a tapered metal sheet from a sheet metal raw material, a shearing device having a cutting blade suitable for metal cutting is used. Then, the sheet metal raw material is sent out in the longitudinal direction, and an operator cuts the sheet metal along the marking line drawn by the shearing device to form a tapered metal sheet.

[0004] In the width direction, the tapered metal sheet is
Accurate left-right symmetry is required, and the work requires accurate and denseness. Therefore, skilled operators are required to form a tapered metal sheet from such a sheet metal raw material. Further, the type of taper shape of the tapered metal thin plate also includes a type in which the oblique sides on both the left and right sides are gently curved and have a substantially bell shape as a whole. In this way, when cutting a gently curved hypotenuse, the cutting direction of the cutting blade matches the tangential direction at each point of the curved marking line, making the cutting work well,
In addition, the cut surface can be cleaned.

[0005]

However, when the tapered metal sheet is cut out from the sheet metal raw material as described above, it is extremely difficult to cut the tapered metal sheet accurately and symmetrically. Because, when cutting and forming a tapered metal sheet from a sheet metal raw material, the cutting work is performed simultaneously along the symmetrical marking lines marked on the left and right sides of the tapered metal sheet, and the cutting speed is the same. There is a need to.

Further, as described above, in the case of forming a tapered metal thin plate of a type in which both right and left oblique sides forming a tapered shape are formed in a curved shape, a curved marking line is marked on the metal thin plate raw material. If the cutting direction of the cutting blade does not match the tangential direction at each point of the curved marking line, good cutting cannot be performed.

However, for this purpose, a symmetrical positional relationship must always be maintained while the direction of the cutting blade is variable. This operation is particularly difficult and cumbersome, and requires a lot of time. for that reason,
Workers are burdened mentally and physically and fatigued, and the products themselves are expensive and time-consuming. For this reason, the work requires accuracy and requires skilled workers. Further, in forming such a tapered metal sheet from a sheet metal raw material, there are various inconveniences such as an apparatus required to be extremely complicated and expensive, and an increase in facility load. I have.

[0008]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides a transport section for transporting a sheet metal raw material, an upper shear roll,
A cutting mechanism having a lower shear roll substantially in contact with the upper shear roll, a base member provided with the cutting mechanism rotatably and capable of only linearly traveling in accordance with a linear rail; A cutting traveling body consisting of a lock body fixed at an angle, and a traveling operation unit for traveling the two cutting traveling bodies, and both cutting traveling bodies are arranged on both sides in a direction orthogonal to the feed direction of the transport unit. And a cutting machine for a tapered metal sheet, in which both cutting traveling bodies are moved toward and away from each other in a state of being symmetrical in the width direction of the transport section by maneuvering the traveling operation unit, or a metal sheet raw material. And a cutting mechanism having an upper shear roll, a lower shear roll substantially in contact with the upper shear roll, and a rotatable and linear cutter provided with the cutting mechanism. A cutting member including a base member capable of only linearly moving in accordance with the cutting mechanism, and a guide wheel provided on the cutting mechanism, a traveling operation unit for causing the both cutting members to travel, and a driving direction of the two cutting members. And a guide rail provided with a curved rail portion. The two cutting traveling bodies are arranged on both sides in a direction orthogonal to the feed direction of the transport portion, and are operated by the traveling operation portion. Both cutting traveling bodies are approached and separated from each other in a symmetrical state in the width direction of the transport unit, and the guide wheel is a tapered metal sheet cutting machine that moves along the guide rail. In addition, it is possible to form a tapered metal sheet from a metal sheet raw material extremely easily and quickly, thereby solving the above-mentioned problems.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, as shown in FIG. 1, the configuration of the present invention includes a cutting traveling body A, a traveling operation section B, and a guide rail 1.
3 is comprised. The cut traveling body A is 2, and a main cutting mechanism portion A ₁ and the base member 9 Metropolitan 3 and the like. Furthermore, the cutting mechanism unit A ₁ is a housing unit 1, the upper Shiyaroru 2, and a lower Shiyaroru 3 and the pedestal portion 8 and the like. The upper shear roll 2
Is fixed to the upper rotating shaft 4 and the lower shear roll 3 is fixed to the lower rotating shaft 5, respectively. The upper shear roll 2 and the lower shear roll 3 are arranged outside the housing 1 [FIGS. 3 and 5 (A)]. reference〕.

In the interior of the housing 1, FIG.
As shown in the figures, a gear mechanism 6 including an upper gear 6a and a lower gear 6b is provided. The upper gear 6a is fixed to the upper rotation shaft 4 and the lower gear 6b is fixed to the lower rotation shaft 5, respectively.
And are engaged. Then, the upper rotation shaft 4 and the lower rotation shaft 5 rotate at the same rotation speed via the gear mechanism 6, whereby the upper shear roll 2 and the lower shear roll 3 rotate in opposite directions and at the same rotation speed. Then, the cutting operation of the metal sheet raw material can be performed.

The lower rotary shaft 5 protrudes out of the housing 1 and is continuous with the bevel gear mechanism 7 (see FIG. 5A). The housing section 1 is mounted and fixed on a pedestal section 8. The pedestal portion 8 is mounted on a base member 9, and can be turned around the bevel gear mechanism 7 on the base member 9 within an appropriate angle range. Specifically, a drive shaft 10 vertically penetrating through the base member 9 and the pedestal portion 8 transmits a rotational force to the lower rotary shaft 5 via the bevel gear mechanism portion 7, and further transmits an upper portion via the gear mechanism portion 6. The rotational force is transmitted to the rotating shaft 4, whereby the upper shear roll 2 and the lower shear roll 3 are rotated to perform a cutting operation.

The bevel gear mechanism 7 comprises a bevel gear 7a on the drive side and a bevel gear 7b on the driven side. The bevel gear 7a on the drive shaft 10 and the bevel gear on the driven side The gear 7b is fixed to the lower rotating shaft 5 protruding from the housing 1 [FIGS. 3 and 5].
(See (A) and (B).) Further, the base portion 8 of the cutting mechanism portion A ₁ is a structure to pivot in a horizontal plane on the base member 9 around the said drive shaft 10 at a range of suitable angles [2, FIG. 5 (A), the (B) and FIGS. 6A to 6C).

The base member 9 of the cutting traveling body A travels only in a linear direction, and a traveling guide portion 9a is formed on the back side of the base member 9, and the traveling guide portion 9a is mounted on the linear rail 14. The base member 9 is arranged and reciprocates in a linear direction according to the linear rail 14. Specifically, as shown in FIGS. 3 and 5 (B), the traveling guide portion 9 having two concave grooves is provided on the back surface side of the base member 9.
a, 9a are formed, and two linear rails 14, 14 similarly having a convex cross section are provided, and the linear rails 14, 14 are inserted into the groove-shaped traveling guide portions 9a, 9a.

The cutting mechanism A ₁ of the cutting traveling body A includes:
A guide wheel 11 is provided. The guide wheel 11 has a guide wheel support plate 12 protruding in a horizontal direction from the cutting mechanism A ₁ , and the guide wheel 11 is provided on the guide wheel support plate 12. A guide rail 13 is provided along the traveling direction of the base member 9 of the cutting traveling body A (FIGS. 1 to 3).
Etc.). The guide rail 13 is provided with the curved rail portion 1.
3a and a straight rail portion 13b, and the curved rail portion 13a is gently curved so that the interval between the straight rail portion 14 and the straight rail portion 14 gradually increases.

[0015] Then, the base member 9 from moving in accordance with the linear rail 14, the cutting mechanism unit A ₁ are those moved together with the base member 9, and the guide wheel 11 moves along the guide rail 13. And guide wheel 1
When the first member ₁ moves along the curved rail portion 13a, the cutting mechanism A1 moves together with the base member 9 that moves linearly while gradually changing the angle on the base member 9 [FIGS. And FIGS. 6A to 6C).

Such a cutting traveling body A and the guide rail 1
3 are symmetrically disposed on both sides in a direction orthogonal to the feed direction of the transport unit C that transports the sheet metal raw material Pm (see FIGS. 1 and 7 and the like). In the transport section C, the sheet metal raw material Pm is sent toward both the cutting traveling bodies A. Metal sheet raw material Pm that moves in the feed direction by the transport section C
The cutting operation is performed symmetrically so as to form a tapered shape by the upper shear roll 2 and the lower shear roll 3 of both the cutting traveling bodies A, A arranged on both sides of the transport section C [FIG. A) to (C) and FIG. 8 (B)].
Also, a marking line k is marked on the sheet metal raw material Pm so as to have a desired tapered shape [FIG. 8 (B) and FIG.
1].

A traveling operation unit B is provided for the two cutting traveling bodies A, A so as to keep them symmetrical at all times (see FIGS. 1 and 4). As a specific structure of the traveling operation section B, both cutting traveling bodies A,
The operating shaft 15 is supported so as to be rotatable in the circumferential direction substantially in parallel with the traveling direction of A, and is orthogonal to the axial direction of the operating shaft 15,
In addition, two driven shafts 16, 16 are arranged at appropriate intervals. The operating shaft 15 and the two driven shafts 16, 1
Numeral 6 is for transmitting rotation from the rotation of the operating shaft 15 in the circumferential direction of the shaft 15 to the driven shafts 16 via the running gears 18. A rack and pinion mechanism 17 is provided at the shaft end of each of the driven shafts 16, 16 on the side opposite to the running gears 18, 18.
a is formed on the back side of the base member 9 and the pinion portion 17b is fixed to the driven shaft 16 [FIG.
(B)).

A worm wheel gear mechanism 19 is provided at an axial end of the operation shaft rod 15, and a wheel gear 19a of the worm wheel gear mechanism 19 is rotated by a worm gear 19b. It has a structure. The worm gear 19b has a handle 20
By operating the handle 20, the operating shaft 15 can be rotated in the circumferential direction of the shaft through the worm wheel gear mechanism 19. When the operating shaft 15 rotates in the circumferential direction of the shaft, the two driven shafts 1 are driven through the running gears 18, 18.
The cutting traveling bodies A, A approach each other in a bilaterally symmetric state via the rack and pinion mechanism 17 at the shaft end of the driven shafts 16, 16, by rotating the shafts 6, 16 in the circumferential direction of the shaft. ,
The vehicle can be steered so as to be separated from each other (see FIGS. 1 and 2).

As described above, both cutting members A and A of the two cutting traveling bodies A and A travel in a linear direction according to the linear rails 14 and 14, respectively, and the cutting mechanisms A ₁ and A ₁ are connected to the base members 9 and 9 respectively.
9, and the cutting mechanism A ₁ , A ₁ moves while changing the angle on the base members 9, 9 with the respective guide wheels 11, 11 following the guide rails 13, 13. As described above, the cutting mechanism A ₁ , A ₁ gradually changes the angle on the base members 9, 9,
Cutting direction by the upper Shiyaroru 2 and the lower Shiyaroru 3 of the cutting mechanism portion A ₁ may slide into changing little by little.

In the state where the two cutting traveling bodies A, A are closest to each other, as shown in FIGS.
_1, each of the guide wheels 11 and 11 of A ₁ is on the curved rail portions 13a, 13a, both cutting mechanism portion A _1, A ₁
Are inclined so as to be symmetrical to each other. And
The cutting directions of the upper shear roll 2 and the lower shear roll 3 have a positional relationship of forming a C-shape with each other.

Next, both cut traveling body A, A When away move together both cutting mechanism portion A _1, A ₁ of the guide wheels 11,1
1 straight rail portion 13b, located on 13b, this time both the cutting mechanism unit A _1, A ₁ is symmetrical to a straight line (see FIG. 2). Then, the cutting direction by the upper shear roll 2 and the lower shear roll 3 becomes substantially equal to the feeding direction of the sheet metal raw material Pm of the transport section C. FIGS. 6A to 6C show how the cutting direction of the cutting mechanism A _{1 by} the upper shear roll 2 and the lower shear roll 3 gradually changes as the cutting traveling body A moves.

FIGS. 6 (A) to 6 (C) show a state in which the two cutting traveling bodies A, A are separated from each other only by one of the cutting traveling bodies A. The moving directions of A are both indicated by arrows. 6A to 6C, as the cutting traveling body A moves, the angle between the cutting direction of the upper shear roll 2 and the lower shear roll 3 and the feeding direction of the sheet metal raw material Pm by the transport unit C. The change of θ is shown. That is, FIG.
(A) is the angle theta _1, the angle theta ₂ becomes FIG. 6 (B), the a θ _1> θ> θ _2. As described above, when the two cutting traveling bodies A and A are separated from each other, the angle θ gradually decreases. Then, in FIG. 6C, the angle is 0.
°, and the cutting direction by the upper shear roll 2 and the lower shear roll 3 matches the feed direction of the sheet metal raw material Pm by the transport section C.

There is a type in which the guide rail 13 is separated in two directions. This type is shown in FIG.
As shown in (B), a substantially thin elliptical tapered metal sheet Pt is formed from a sheet metal raw material Pm. That is, as shown in FIG. 9A, the structure of each guide rail 13 includes one linear rail portion 13b and two curved rail portions 13a, 13a. And
Two curved rail portions 13a, 13a is intended to extend in opposite directions with respect to the linear travel of the base member 9, the cutting mechanism unit A ₁ so as to be symmetrical to the angle change on the base member 9 You can do it.

The connecting portions of the straight rail portion 13b and the curved rail portions 13a, 13a in two different directions are separated from each other, and the cutting traveling body A is moved from the straight rail portion 13b to the curved rail portion 13a. When moving, the worker places the cutting wheel A on the curved rail portion 13a in a desired direction so that the guide wheel 11 is mounted thereon. Further, since the guide wheel 11 can be turned with respect to the guide wheel support plate 12, the followability to the curved rail portion 13a is improved.

Next, there is a type which comprises a cutting traveling body A and a traveling operation section B and does not have the guide rail 13. In this type, as shown in FIG. 10A, as a structure of the cutting traveling body A, the pedestal portion 8 can turn the base member 9 around the bevel gear mechanism 7. A turning restriction hole 8a is formed on the opposite side of the pedestal portion 8 from the bevel gear mechanism 7, and a vertical restriction pin 21 is provided from the base member 9 in the turning restriction hole 8a. Then, the pedestal portion 8 can turn at a predetermined angle with respect to the base member 9 in the range of the turning control hole 8 a by the control pin 21. In addition, a holding member 22 is provided on the regulating pin 21, and the pedestal portion 8 can be fixed on the base member 9 with the holding member 22 (see FIG. 10B).

Further, in its base portion 8, and the locking member 23 is provided, in particular consists lock base 23a and the handle portion 23b, the screw portion 23a ₁ of the lock base 23a of the base portion 8 It is screwed into the screw hole 8b. Then, the lock base 23a of the lock body 23 is inserted into the screw hole 8b.
By screwing the screw portion 23a _1, the screw portion 23a ₁ leading end of the lock base 23a is in contact with the base member 9, to firmly fix the pedestal 8 on the base member 9.

Then, the lock body 23 is loosened and the pedestal 8
Is set at an appropriate angle with respect to the base member 9, the cutting direction between the upper shear roll 2 and the lower shear roll 3 can be set to a desired direction. Then, the base member 9 of the cutting traveling body A can be straightened according to the operation of only the traveling operation unit B, and can cut the thin metal sheet material Pm into a tapered shape having a linear oblique side.

[0028]

First, as shown in FIG. 1, the cutting traveling bodies A, A are arranged symmetrically on both sides of the leading end of the conveying section C in the feeding direction. At this time, in the initial stage, both cutting traveling bodies A, A
As shown in FIG. 1, the upper shear rolls 2, 2 and the lower shear rolls 3, 3 are in a state of being close to each other.
Also, a marking line k is previously written on the metal sheet raw material Pm (see FIGS. 8 and 11). Then, the sheet metal raw material Pm is placed on the transport section C, and the sheet metal raw material Pm is sent out along the transport section C to both the cutting traveling bodies A and A.

Next, cutting is started by the upper shear roll 2 and the lower shear roll 3 of both the cutting traveling bodies A, A. The operator operates the traveling operation unit B along the marking line k to separate the two cutting traveling bodies A from each other. The progress of the cutting operation is as shown in FIGS. 6 (A), 6 (B) and 6 (C). At this time, the angle of the cutting direction gradually changes as the distance between the cutting traveling bodies A, A is increased.

That is, as the cutting traveling body A moves from the curved rail portion 13a of the guide rail 13 to the straight rail portion 13b, the cutting traveling body A moves while gradually changing the cutting direction by the upper shear roll 2 and the lower shear roll 3. . For this reason, in the cutting operation, an unreasonable load is not applied to the metal sheet raw material Pm side, the upper shear roll 2, the lower shear roll 3, and the like, so that good and clean cutting can be performed. Further, the cutting traveling body A is the guide rail 1
According to 3, the speed at which the cutting direction is changed is the sheet metal raw material Pm
The operator rotates the handle 20 of the traveling operation unit B as appropriate while checking the speed at which the operator advances through the transport unit C.

[0031]

According to the first aspect of the present invention, the transport section C for transporting the sheet metal raw material Pm, the upper shear roll 2,
Lower shear roll 3 substantially in contact with upper shear roll 2
A cutting mechanism portion A ₁ with bets, a base member 9 which can only linearly travel along the cutting mechanism portion A ₁ and the linear rail 14 freely disposed pivot, suitably the cutting mechanism portion A ₁ with respect to the base member 9 And a traveling operation unit B for traveling the two cutting traveling bodies A, A.
Are arranged on both sides in the direction perpendicular to the feed direction of the transport section C, and the two cutting traveling bodies A, A are symmetrical to each other in the width direction of the transport section C when the traveling operation section B is operated. By using a taper-shaped sheet metal cutting machine that is approached and separated, firstly, it is possible to accurately cut the sheet metal raw material Pm into a tapered shape, and secondly, to simplify the structure. It has effects such as being able to do.

[0032] More specifically the above effects, and arranged in a substantially contact with the upper Shiyaroru 2 and the lower Shiyaroru 3 of the cutting mechanism portion A _1, are those to which they are capable of cutting operation by rotating in the opposite direction, The cutting mechanism A ₁ is configured to be rotatable with respect to the base member 9, and that the locking mechanism 23 can fix the cutting mechanism A ₁ on the base member 9 at a desired angle. . Furthermore, since the traveling operation unit B for separating the two cutting traveling bodies A, A at an appropriate interval is provided, the traveling operation unit B allows the two cutting traveling bodies A, A to approach or separate symmetrically from left to right. It can be done easily. Thereby, the cutting operation can be performed on the sheet metal raw material Pm sent by the transport section C so as to be extremely accurately and easily tapered by the two cutting traveling bodies A, A.

Further, both cut traveling body A consisted cutting mechanism portion A ₁ and the base member 9 Prefecture, the base member 9 is obtained by a movable only in a linear direction, be of very simple structure it can. Further, by providing the lock member 23, the adjustment of the angle of the cutting mechanism portion A ₁ with respect to the base member 9 is adapted to be extremely easy.

Next, a second aspect of the present invention is to
a conveying section C for conveying the m, and the upper Shiyaroru 2, upper Shiyaroru 2 and the cutting mechanism unit A ₁ having a lower Shiyaroru 3 was substantially contacting, and straight rail provided pivotably to the cutting mechanism portion A ₁ 14 straight running base member 9 which can only cut traveling body a comprising a provided guide wheels 11 Metropolitan to the cutting mechanism portion a _1, and a, the both cut running body a, and the traveling operation unit B for running the a in accordance And guide rails 13, 13 provided along the traveling direction of the two cutting traveling bodies A, A and having curved rail portions 13a, 13a. The two cutting traveling bodies A, A are arranged on both sides in a direction orthogonal to the feed direction of C, and are approached and separated from each other in a state of being symmetrical in the width direction of the transporting section C by the operation of the traveling operation section B. And the guide wheel 11 By using the taper-shaped metal sheet cutting machine that moves along the guide rail 13, the tapered metal sheet Pt having a curved inclined side can be formed accurately, and secondly, the cutting direction. In the tangential direction of the marking line k.

That is, the base member 9 can only run in a straight line, and the cutting mechanism A ₁ can turn freely on the base member 9. Further, the cutting mechanism A ₁ includes the guide wheel 1
As the guide rail 1 follows the guide rail 13, the cutting mechanism A ₁ can also move on the base member 9 while changing the angle according to the longitudinal shape of the guide rail 13. As described above, the cutting traveling body A includes the cutting mechanism A
₁ is appropriately to change the angle on the base member 9 via the guide rail 13, since the base member 9 and the cutting mechanism portion A ₁ is moved, likewise cutting direction by the upper Shiyaroru 2 and the lower Shiyaroru 3 Change.

Thus, the cutting direction can always be substantially matched by the upper shear roll 2 and the lower shear roll 3 with the tangent at each point of the marking line k marked on the sheet metal raw material Pm. Good and clean cutting can be performed. The two cutting traveling bodies A and A can be moved symmetrically by the traveling operation part B. The curved oblique sides of the tapered metal sheet Pt cut and formed by the cutting operation bodies B are extremely right and left. It can be symmetric.

Next, according to a third aspect of the present invention, in the first or second aspect, the upper shear roll 2 and the lower shear roll 3 are driven through a bevel gear mechanism 7, and the cutting mechanism A ₁ The drive shaft 10 for driving the bevel gear mechanism 7 is a taper-shaped thin metal plate cutting machine serving as a center of rotation with respect to the base member 9, so that the structure is simplified and the cutting mechanism A ₁ is mounted on the base member 9. The driving unit can be reliably operated even when the angle is changed.

That is, the drive shaft 1 of the bevel gear mechanism 7 for driving the upper shear roll 2 and the lower shear roll 3
0 is obtained by a pivot axis cutting mechanism portion A ₁ with respect to the upper base member 9, in which the drive structure and the orbiting structure can be used also in the same member. Hence,
There is no need to provide a pivot center made of another structure, and the structure can be simplified. Furthermore, since the drive shaft 10 directly connected to the bevel gear mechanism 7 is used as the center of rotation, the meshing state of the bevel gear mechanism 7 is always good even when the cutting mechanism A ₁ rotates on the base member 9. , And the reliability and durability of the operation can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view showing the present invention.

FIG. 2 is a plan view showing a configuration of a cutting traveling body, a guide rail, a traveling operation unit, and the like.

FIG. 3 is a perspective view of a cutting traveling body.

FIG. 4 is a schematic perspective view of a main part of the present invention.

5A is a longitudinal sectional side view of a main part of the present invention, and FIG. 5B is a cross-sectional view showing a bevel gear mechanism of the present invention.

FIG. 6A is a plan view showing an initial state of cutting by the cutting traveling body; FIG. 6B is a plan view showing a state of cutting by the cutting traveling body; Plan view showing the state

FIG. 7 is a schematic plan view showing a state in which a sheet metal raw material is fed by a transport unit in the present invention.

8 (A) is a plan view of a cutting traveling body. FIG. 8 (B) is a plan view in which a marking line is marked on a sheet metal raw material and the outside thereof is unnecessary.

9A is a plan view of a main part of the present invention having a guide rail of an embodiment having a curved rail portion in two directions, and FIG. 9B is a state in which an elliptical tapered metal sheet is formed by the present invention. Schematic plan view showing

FIG. 10A is a plan view of the cutting traveling body of the embodiment having no guide rail portion, and FIG.

FIG. 11 is a perspective view showing a metal sheet raw material and a tapered metal sheet.

[Explanation of symbols]

A: Cutting traveling body A ₁ : Cutting mechanism section B: Traveling operation section C: Conveying section Pm: Metal sheet raw material 2 ... Upper shear roll 3 ... Lower shear roll 7 ... Bevel gear mechanism section 9 ... Base member 11 ... Guide wheel 13 ... Guide rail 13a: Curved rail section 23: Lock body

Claims (3)

(57) [Claims] A cutting mechanism having a conveying section for conveying a sheet metal raw material, an upper shear roll, a lower shear roll substantially in contact with the upper shear roll, and a cutting mechanism provided rotatably and in accordance with a linear rail. A cutting traveling body including a base member capable of only linear traveling, a lock body for fixing the cutting mechanism at an appropriate angle with respect to the base member, and a traveling operation unit for traveling the two cutting traveling bodies ; The two cutting traveling bodies are orthogonal to the feeding direction of the transport unit.
And both cutting traveling bodies are symmetrical in the width direction of the transport section when the traveling operation section is operated.
A taper-shaped sheet metal cutting machine characterized by being brought close to and away from each other . 2. A cutting mechanism having a transport section for transporting a sheet metal raw material, an upper shear roll, a lower shear roll substantially in contact with the upper shear roll, and a cutting mechanism provided rotatably and in accordance with a linear rail. A cutting traveling body including a base member capable of only linear traveling and a guide wheel provided in the cutting mechanism , a traveling operation unit for traveling the both cutting traveling bodies, A guide rail provided along the traveling direction and having a curved rail portion , wherein the two cutting traveling bodies are orthogonal to the feed direction of the transport section.
And both cutting traveling bodies are symmetrical in the width direction of the transport section when the traveling operation section is operated.
Approached and separated from each other, and the guide wheel is
A taper-shaped sheet metal cutting machine characterized by moving along a guide rail . 3. The sheer roll according to claim 1, wherein the upper shear roll and the lower shear roll are driven via a bevel gear mechanism, and the cutting mechanism is a base member having a drive shaft for driving the bevel gear mechanism. A taper-shaped sheet metal cutting machine characterized by being a center of rotation with respect to the upper side.