JP2015211990A - Cutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cutter that improves processing efficiency by enabling continuation of the processing by making cut products fall onto a brush conveyor without falling from a scrap carry-out port in front of the brush conveyor.SOLUTION: A shooter 30 is provided between a lower blade 42 and a brush conveyor 22. Products Q1, Q2... cut from a workpiece W are made to fall onto the descended brush conveyor 22 after being struck on the shooter 30. The shooter 30 is inclined so that the lower blade 42 side is relatively higher and the descended brush conveyor 22 side is relatively lower. The shooter 30 is provided so as to freely approach and separate from the brush conveyor 22 in the inclined state. A gap T between the shooter 30 and the brush conveyor 22 is adjustable.

Description

  The present invention relates to a cutting machine that enables processing to be continued and the processing efficiency to be improved by dropping a cut product onto the brush conveyor without dropping from a scrap outlet in front of the brush conveyor.

  Conventionally, as disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-79430, in a punch cutting composite machine in which a punching portion and a cutting portion are arranged adjacent to each other, a support table 30 (moving up and down diagonally) FIG. 1) of the publication is provided.

  The support table 30 is positioned at the same height as the lower blade 42 at the time of punching so that the back surface of the workpiece W is not damaged even when the workpiece W enters the cutting portion side. .

  Then, after punching, the support table 30 rises to a position higher than the lower blade 42 and waits there, and the workpiece W is cut by the L blade 40 composed of the lower blade 42 and the upper blade 41. It is performed smoothly without being interrupted by 30.

  However, this support table 30 has an extremely complicated drive mechanism for moving it up and down diagonally (FIGS. 3 to 6 of the publication), and the overall operation is also complicated (FIGS. 9 to 10 of the publication). ).

  Therefore, a punch cutting composite machine provided with a brush conveyor that can move up and down instead of the support table 30 has been realized and has already been put into practical use.

JP 2002-79430 A

  That is, as shown in FIG. 11, a brush conveyor 102 is provided on the inner side of the lower blade 100 so as to be movable up and down. At the time of punching, the brush conveyor 102 is positioned at a position higher than the lower blade 100, and a cutting portion Is supported by the brush conveyor 102 so that the lower surface of the workpiece is not damaged by the lower blade 100. At the time of cutting, the brush conveyor 102 is positioned at a position lower than the lower blade 100, Cutting with an L blade composed of a lower blade 100 and an upper blade 101 was made possible.

  A scrap carry-out port is provided between the brush conveyor 102 and the lower blade 100, and scrap generated at the time of product cutting is carried out to the outside through the scrap carry-out port.

  However, there is a minimum product (for example, a size of 50 mm square) among the products Q1 (FIG. 11), Q2,..., In which case the products Q1, Q2,. It will be discharged.

  As a result, in order to continue processing, extra work such as once discharged products Q1, Q2,... Must be collected and placed on the brush conveyor 102 and conveyed to the next process (for example, bending). Increasing the processing efficiency is extremely reduced.

  An object of the present invention is to provide a cutting machine capable of continuing processing by allowing a cut product to fall on the brush conveyor without falling from a scrap carry-out port in front of the brush conveyor, thereby improving processing efficiency. I will provide a.

In order to solve the above problems, according to the present invention,
As described in claim 1,
A cutting portion SK for cutting the workpiece W by an L blade 40 composed of an upper blade 41 and a lower blade 42, and a vertically movable inner side of the lower blade 42 of the cutting portion SK. In a cutting machine having a brush conveyor 22 that rises to a position higher than the blade 42 and lowers to a position lower than the lower blade 42 during cutting processing,
A shooter 30 is provided between the lower blade 42 (FIG. 4) and the brush conveyor 22, and after the products Q1, Q2,... Cut from the workpiece W are applied to the shooter 30, the brush conveyor 22 is lowered. The technical means of cutting machine, which is characterized by being dropped in

  According to the configuration of the present invention, the shooter 30 (FIG. 5) is inclined such that the lower blade 42 side is relatively high and the lowered brush conveyor 22 side is relatively low. FIG. 6) is provided so as to be able to approach and leave the brush conveyor 22 in an inclined state, and the gap T between the shooter 30 and the brush conveyor 22 can be adjusted. For example, the brush conveyor 22 can be raised when the workpiece W is loaded in a state in which the interference between the two is eliminated by setting it to about 10 mm, and by lowering the brush conveyor 22 to a position lower than the lower blade 42 ( 10 (A)), if the gap T between the shooter 30 and the brush conveyor 22 is set and adjusted and cutting is performed (FIG. 5), the cut products Q1, Q2,. Can be dropped onto the lowered brush conveyor 22 after being applied thereto, and the gap T between the shooter 30 and the lowered brush conveyor 22 is extremely small. The products Q1, Q2,... Are configured not to be carried out.

  Therefore, according to the present invention, the cut product is dropped on the brush conveyor without falling from the scrap carry-out port in front of the brush conveyor, thereby enabling the processing to be continued and improving the processing efficiency. A cutting machine can be provided.

1 is an overall view showing an embodiment of the present invention. FIG. 2 is a perspective view of FIG. 1. It is a figure which shows the example of a process by this invention. It is a perspective view of the shooter 30 which comprises this invention. It is a figure which shows the relationship between the shooter 30 and the brush conveyor 22 which comprise this invention. It is a figure which shows the adjustment mechanism of the clearance gap T between the shooter 30 and the brush conveyor 22 which comprises this invention. It is a top view which shows the raising / lowering mechanism of the brush conveyor 22 which comprises this invention. FIG. 8 is a perspective view of FIG. 7. FIG. 8 is a side view of FIG. 7. It is operation | movement explanatory drawing of this invention. It is explanatory drawing of a prior art.

Hereinafter, the present invention will be described with reference to the accompanying drawings by embodiments.
FIG. 1 is an overall view showing an embodiment of the present invention, and FIG. 2 is a perspective view showing a punch cutting composite machine 21 including a cutting machine according to the present invention.

  The punch cutting multifunction machine 21 has a punching part PK and a cutting part SK adjacent to each other.

  Among these, the punching portion PK has an upper turret 6 and a lower turret 7 as shown in the figure, and the upper turret 6 has a punch P and the lower turret 7 has a die D.

  Then, the rotation shaft of the upper turret 6 and the rotation shaft of the lower turret 7 are rotated by a motor so that the upper turret 6 and the lower turret 7 are rotated synchronously. Therefore, at the punching position K1 (FIG. 2), A predetermined mold M comprising the die D can be selected.

  Further, a ram 2 (for example, an electric type) for punching the punch P is provided on the frame 1 (FIG. 1) of the punch processing portion main body immediately above the punch P at the punching position K1. A predetermined punching process can be performed on the workpiece W by cooperation of the die D.

  For example, when the workpiece W (FIG. 3A) is cut along the cutting lines S1, S2,..., The products Q1, Q2,. (FIG. 3 (B)) First, at the time of punching, a hole A is processed at a predetermined position on the workpiece W by the punch P and the die D.

  On the other hand, the cutting portion SK (FIG. 2) has an L blade 40 composed of an upper blade 41 and a lower blade 42, and a plate presser (not shown) is provided along the outer periphery of the L blade 40.

  The upper blade 41 is fixed to a ram 43, and the ram 43 is moved up and down by, for example, an electric ram crank 44 provided on a frame 45 of a cutting portion main body.

  The upper blade 41 includes an X upper blade 41X and a Y upper blade 41Y that are orthogonal to each other, and the lower blade 42 includes an X lower blade 42X and a Y lower blade 42Y that are orthogonal to each other.

  With this configuration, by lowering the upper blade 41, the workpiece W is cut along the cutting lines S1 (FIG. 3 (A)), S2... At the cutting position K2, as described above. For example, finally, the holes A are processed (as described above, the holes A are already formed at the time of the previous punching), and products Q1, Q2,... Qn are formed (FIG. 3B). .

  Among the upper blade 41 (FIG. 2) and the lower blade 42, the lower blade 42 is provided inside the lower blade 42 by a piston / crank mechanism PC provided on the brush conveyor frame 32 as described later (FIG. 7). A brush conveyor 22 having a lifting mechanism is disposed.

  With this configuration, when the workpiece W is carried in, the brush conveyor 22 is raised and positioned at a position higher than the lower blade 42 (FIG. 10B).

  Thereby, the brush conveyor 22 supports the workpiece W that has entered the cutting portion SK when the workpiece W is carried in, and prevents the lower surface of the workpiece W from being damaged by the lower blade 42.

  In the case of cutting, the brush conveyor 22 is lowered and positioned at a position lower than the lower blade 42, as opposed to when the workpiece W is carried in (FIG. 10A).

  Further, a shooter 30 is provided between the lower blade 42 (FIG. 4) and the brush conveyor 22.

  With this configuration, the products Q1 (FIG. 4), Q2,... Cut from the workpiece W (FIGS. 1 and 2) are dropped onto the brush conveyor 22 lowered after being applied to the shooter 30.

  The shooter 30 (FIG. 5) is inclined so that the lower blade 42 side is relatively high and the lowered brush conveyor 22 side is relatively low.

  As shown in FIG. 6, the shooter 30 is provided so as to be able to approach and leave the brush conveyor 22 in an inclined state, and the gap T between the shooter 30 and the brush conveyor 22 can be adjusted. .

  That is, as will be described later (FIGS. 7 to 9), the lifting mechanism of the brush conveyor 22 is constituted by the piston / crank mechanism PC (FIG. 7). However, the brush conveyor 22 as a whole may be considered to move up and down along a straight line having a substantially predetermined inclination, for example, L1 (FIG. 5) or L2.

  However, since the shooter 30 and the brush conveyor 22 interfere when moving up and down along the straight line L1 (FIG. 5), in order to avoid this interference, for example, the straight line L1 has the same inclination as the straight line L1. It is preferable to move up and down along a straight line L2 slightly separated from L1.

  That is, the operation of the present invention including the cutting process is smoothly performed when a certain gap is provided between the shooter 30 and the brush conveyor 22.

  For this reason, as described above, the gap T between the shooter 30 and the brush conveyor 22 can be adjusted (FIG. 6).

  In FIG. 6, the shooter 30 includes an inclined plate 30A to which a product hits and a support plate 30B that supports the inclined plate 30A. A piston rod of a cylinder 30C is connected to the support plate 30B, and the cylinder 30C is cut. It is attached to the body frame 45 side of the part SK (FIG. 1).

  A slider 30D is provided at the lower end of the support plate 30B. The slider 30D is slidably coupled to the rail 30E, and the inclined plate 30A, the cylinder 30C, the slider 30D, and the rail 30E are arranged in parallel. .

  With this configuration, when the cylinder 30C (FIG. 6) is operated via a cylinder control unit as a part of the NC device (not shown) of the cutting machine according to the present invention, the shooter 30 is moved relative to the brush conveyor 22. The shooter 30 is stopped when approaching / separating, for example, when the gap T between them becomes 10 mm.

  Thereafter, with the gap T between the shooter 30 and the brush conveyor 22 set to a predetermined value, for example, 10 mm, the brush conveyor 22 is lifted and lowered while avoiding interference between the shooter 30 and the brush conveyor 22 (see FIG. 10) and workpieces are carried in.

  FIG. 6 shows the case where the adjustment of the gap T is performed automatically, but unlike this, the operator may adjust the gap T manually.

  At the rear of the brush conveyor 22 (FIGS. 1 and 2), for example, a belt conveyor 16 is provided in order to transport the product transported on the brush conveyor 22 further away.

  Hereinafter, the raising / lowering mechanism of the said brush conveyor 22 is demonstrated based on FIG.

  The lifting mechanism is constituted by a piston / crank mechanism PC provided on the brush conveyor frame 32.

  As shown in FIG. 7, the piston / crank mechanism PC is composed of a piston mechanism PS and a crank mechanism CR, and the reciprocating linear motion (arrows A and D) of the piston mechanism PS is the rotational arc motion (arrows) of the crank mechanism CR. BC, EF).

  As a result, the brush conveyor 22 attached to the crank mechanism CR, more specifically, to the front end portions 70 and 71 of the front crank mechanism CR1 and the front end portions 72 and 73 of the rear crank mechanism CR2, which will be described later, is lowered, for example. The brush conveyor 22 as a whole approaches the shooter 30 (FIG. 10A) and moves away from the shooter 30 as it rises (FIG. 10B). The entire brush conveyor 22 has a straight line L2 having a substantially predetermined inclination (FIG. 5). ).

  In this case, as described above, the gap T (FIG. 6) between the shooter 30 and the brush conveyor 22 is set to 10 mm, for example, and interference between the two is avoided.

  FIG. 7 is a plan view showing the lifting mechanism of the brush conveyor 22 constituting the present invention, and corresponds to the time when the brush conveyor 22 is lowered (FIG. 10A).

  8 is a perspective view of the piston / crank mechanism PC provided on the brush conveyor frame 32 as viewed from below, and FIG. 9 is a side view of the piston / crank mechanism PC (however, the piston mechanism PS ( 7), not the double-acting cylinders 33 and 34 but the connecting members 35 and 36 are shown.) FIG. 10 is a diagram for explaining the operation of the present invention. In each figure, (A) and (B) are lowered. It represents time and rising time, respectively.

  As is apparent from FIG. 7, the piston mechanism PS constituting the piston / crank mechanism PC is composed of a right piston mechanism PS1 and a left piston mechanism PS2 arranged in the left-right direction of the brush conveyor frame 32.

  The crank mechanism CR constituting the piston / crank mechanism PC includes a front crank mechanism CR1 and a rear crank mechanism CR2 arranged in the front-rear direction of the brush conveyor frame 32.

  As shown in the figure, a front crank mechanism CR1 and a rear crank mechanism CR2 constituting the crank mechanism CR are provided at the front end portion and the rear end portion of the right piston mechanism PS1 and the left piston mechanism PS2 constituting the piston mechanism PS. Each is connected.

  The above is the description of the entire piston / crank mechanism PC constituting the lifting mechanism of the brush conveyor 22 of the present invention, and a detailed description of each mechanism will be given below.

  That is, both the right piston mechanism PS1 and the left piston mechanism PS2 of the piston mechanism PS (FIG. 7) are composed of double acting cylinders 33, 34 and connecting members 35, 36 interlocking with the double acting cylinders 33, 34.

  In this case, as is well known, the double-acting cylinders 33 and 34 are subjected to pressure such as hydraulic pressure or water pressure alternately on both sides of the pistons 33A and 34A, and perform, for example, a reciprocating linear motion (arrows A and D). .

  Further, both the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR are constituted by shafts 50, 51 and right arms 52, 53 and left arms 54, 55 disposed on both sides of the shafts 50, 51. .

  The right arm 52, 53 and the left arm 54, 55 are all driven by driving arms 60, 61, 62, 63 and driven arms 64, 65, 66, 67 linked to the driving arms 60, 61, 62, 63. It is configured.

  For example, the right arm 52 is constituted by a drive arm 60 and a driven arm 64 interlocked therewith, that is, the drive arm 60 and the driven arm 64 are connected via a member 80, and the drive arm 60 is operated by the action of the double-action cylinder 33. If the rotating arc motion is performed in the clockwise direction (for example, in FIG. 8A), the driven arm 64 also performs the rotating arc motion in the same clockwise direction accordingly.

  Further, the double acting cylinder 33 constituting the right piston mechanism PS1 of the piston mechanism PS is connected to the drive arms 60 and 61 of the right arms 52 and 53 constituting the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR. Yes.

  More specifically, the piston 33A of the double acting cylinder 33 is connected to drive arms 60 and 61 via connecting rods 33B and 33C.

  The connecting member 35 constituting the right piston mechanism PS1 of the piston mechanism PS is connected to the right arm 52 and the 53 driven arms 64 and 65 constituting the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR.

  Such a relationship is the same for the left piston mechanism PS2 of the piston mechanism PS and the left arms 54 and 55 constituting the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR.

  In short, as shown in FIG. 7, the double acting cylinders 33 and 34 constituting the right piston mechanism PS1 and the left piston mechanism PS2 of the piston mechanism PS are composed of a front crank mechanism CR1 and a rear crank mechanism CR2 of the crank mechanism CR. Are connected to the drive arms 60, 61, 62, 63 of the right arm 52, 53 and the left arm 54, 55, and the connecting members 35, 36 constituting the right piston mechanism PS1 and the left piston mechanism PS2 of the piston mechanism PS. Are connected to the right arms 52, 53 and the driven arms 64, 65, 66, 67 of the left arms 54, 55 constituting the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR.

  On the other hand, the punch cutting multifunction machine (FIGS. 1 and 2) has a carriage base 11 and a carriage 12, and a clamp 13 is attached to the carriage base 11 via the carriage 12. The workpiece W is gripped.

  The carriage 12 is slidably coupled to the X-axis guide 18 (FIG. 1) on the carriage base 11 and screwed to the ball screw 15 of the X-axis motor Mx. The carriage base 11 is a Y-axis guide (not shown). ) And is screwed into the ball screw 14 of the Y-axis motor My.

  With this configuration, the X-axis motor Mx and the Y-axis motor My are operated (FIGS. 1 and 2), and the workpiece W held by the clamp 13 is conveyed on the processing table, that is, the center table 10 and the side tables 10A and 10B. Further, it can be positioned at the punching position K1 of the punching part PK and at the cutting position K2 of the cutting part SK adjacent thereto.

  Further, a part of the side table 10B, which is a processing table, is constituted by a floating brush 47 that can move up and down, and the workpiece W is positioned on the raised floating brush 47 so that the back surface of the workpiece W is not damaged. To.

  The operation of the present invention having the above configuration will be described below with reference to FIG. 10 is a view seen from the direction of arrow A in FIGS.・

(A) Operation when the brush conveyor 22 is lowered (FIG. 10A).

  First, the cylinder 30C (FIG. 6) is operated to bring the shooter 30 closer to and away from the brush conveyor 22, and for example, the shooter 30 is stopped when the gap T between them becomes, for example, 10 mm.

  Next, with the gap T set to 10 mm, the right-hand piston mechanism PS1 of the piston mechanism PS (FIG. 7) and the double-acting cylinders 33, 34 of the left-hand piston mechanism PS2 are actuated to move the pistons 33A, 34A linearly ( For example, when the arrow a) in FIG. 9A is performed, the right and left arms 52 and 53 and the left arms 54 and 55 of the front crank mechanism CR1 and the rear crank mechanism CR2 of the crank mechanism CR (FIG. 7) rotate clockwise ( For example, arrow b in FIG.

  Thus, the reciprocating linear motion of the piston mechanism PS (FIG. 7) is converted into the rotational arc motion of the crank mechanism CR, so that the brush conveyor 22 attached to the crank mechanism CR approaches the shooter 30 as it descends ( FIG. 10 (A)).

  As a result, as described above, the entire brush conveyor 22 descends along the straight line L2 (FIG. 5) having a substantially predetermined inclination, and the interference between the shooter 30 and the brush conveyor 22 is avoided. 10 (A)), the brush conveyor 22 is lowered to a position lower than the lower blade.

(B) Operation at the time of cutting the workpiece W (FIG. 5).
If the workpiece W is cut by the L blade 40 composed of the upper blade 41 (FIGS. 1 and 2) and the lower blade 42 in a state where the brush conveyor 22 is lowered to a position lower than the lower blade 42 in this way, The products Q1 (FIG. 5), Q2,... Cut from the workpiece W hit the shooter 30, and can then be dropped onto the lowered brush conveyor 22. Further, when the cylinder 30C is operated to bring the shooter 30 closer to the brush conveyor 22 and the gap T between the shooter 30 and the brush conveyor 22 is narrowed, the product is surely dropped onto the brush conveyor 22. Can do.

  Therefore, according to the present invention, the cut product is not dropped from the scrap carry-out port 31 in front of the brush conveyor 22 but dropped onto the brush conveyor 22, so that the processing can be continued and the processing efficiency can be improved. A cutting machine that can be improved can be provided.

(C) Operation when the brush conveyor 22 is raised (FIG. 10B).

  In this case, the operation completely opposite to (A) is performed (arrows c and d in FIG. 9B).

  As a result, the reciprocating linear motion of the piston mechanism PS (FIG. 6) is converted into the rotational arc motion of the crank mechanism CR, and this time, the brush conveyor 22 attached to the crank mechanism CR moves away from the shooter 30 as it rises. (FIG. 10 (B)).

  Also in this case, the gap T (FIG. 6) between the shooter 30 and the brush conveyor 22 is set to, for example, 10 mm by operating the cylinder 30C from the position where both approach each other.

  Accordingly, as described above, the entire brush conveyor 22 ascends along the straight line L2 (FIG. 5) having a substantially predetermined inclination, and interference between the shooter 30 and the brush conveyor 22 is avoided. Then (FIG. 10B), the brush conveyor 22 is raised to a position higher than the lower blade 42.

(D) Operation when loading the workpiece W.
Thus, in the state which raised the said brush conveyor 22 to the position higher than the lower blade 42, the workpiece | work W for the next cutting process is carried in to the cutting process part SK (FIG. 1, FIG. 2), and the cutting process position K2 In this case, the workpiece W is supported by the floating brush 47 and the brush conveyor 22 and the back surface is not damaged.

  The present invention is used in a cutting machine that enables cutting to be continued and the processing efficiency can be improved by dropping the cut product onto the brush conveyor without dropping from the scrap outlet in front of the brush conveyor. Is extremely beneficial.

DESCRIPTION OF SYMBOLS 1 Frame of punching part main body 2 Ram cylinder of punching part 11 Carriage base 12 Carriage 13 Clamp 14, 15 Ball screw 16 Belt conveyor 18 X-axis guide 21 Punch cutting compound machine 22 Brush conveyor 30 Shutter 31 Scrap carry-out port 32 Brush conveyor frame 40 L blade 41 Upper blade 42 Lower blade 43 Ram of cutting section 44 Ram cylinder of cutting section 45 Frame of cutting section main body 47 Floating brush D Die P Punch M Mold W Workpiece
PK punching section
SK cutting part
PC Piston / Crank mechanism PS Piston mechanism CR Crank mechanism

Claims (6)

A cutting part that cuts a workpiece with an L-blade consisting of an upper blade and a lower blade, and a vertically movable inside the lower blade of the cutting part, and when the workpiece is loaded, it rises to a position higher than the lower blade, At the time of cutting, in a cutting machine having a brush conveyor that descends to a position lower than the lower blade,
A cutting machine, wherein a shooter is provided between the lower blade and the brush conveyor, and a product cut from a workpiece is applied to the shooter and then dropped onto the lowered brush conveyor.   The cutting machine according to claim 1, wherein the shooter is inclined so that the lower blade side is relatively high and the lowered brush conveyor side is relatively low.   The cutting machine according to claim 1 or 2, wherein the shooter is provided so as to be able to approach and leave the brush conveyor in an inclined state, and a gap between the shooter and the brush conveyor can be adjusted.   2. The cutting machine according to claim 1, wherein the lifting mechanism of the brush conveyor is constituted by a piston / crank mechanism provided on the brush conveyor frame.   The piston / crank mechanism is composed of a piston mechanism and a crank mechanism, and the reciprocating linear motion of the piston mechanism is converted into the rotating arc motion of the crank mechanism, so that the brush conveyor attached to the crank mechanism is lowered to the shooter. The cutting machine according to claim 4, wherein the brush conveyor ascends and descends along a straight line having a substantially predetermined inclination so as to move away from the shooter as it approaches and rises.   The piston mechanism is constituted by a right piston mechanism and a left piston mechanism arranged in the left-right direction of the brush conveyor frame, and the crank mechanism is constituted by a front crank mechanism and a rear crank mechanism arranged in the front-rear direction of the brush conveyor frame. The cutting machine according to claim 5, wherein the front crank mechanism and the rear crank mechanism are respectively connected to the front end portion and the rear end portion of the right piston mechanism and the left piston mechanism.

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