JP2566889Y2 - Cutting piece conveying device in 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 cut piece conveying apparatus for conveying cut pieces separated from a work by a cutting machine such as a sawing machine.

[0002]

2. Description of the Related Art As a cutting machine for cutting a long material such as a bar, for example, a circular saw and a band saw are well known. In the above-described cutting machine, a main body vise device is provided near the cutting position in order to clamp and fix a work to be cut by a cutting tool such as a saw blade provided in the cutting machine. In general, a material feeding vise device for carrying a work to a cutting position is provided at the rear side of the main body vise device so as to be reciprocally movable in the front-rear direction.

[0003] In a cutting machine having the above-described structure, a workpiece can be automatically sent to a cutting position of the cutting machine by automating the back and forth movement of a material feeding vise device.

[0004] In order to further automate the cutting machine, further, in order to convey the cut piece cut and separated from the work at the cutting position to the next process, the cut piece is firstly arranged in front of the cutting machine. It is necessary to feed material on a plurality of material feed rollers in the apparatus.

[0005]

The cut pieces are clamped by a pair of clamp jaws and conveyed on a feed roller. However, the cut pieces are warped or bent, and so on. The vice head provided with the clamp jaw described above receives an excessive upward, leftward, or rightward force through the cut piece. Therefore, in the conventional cutting piece device, there is not enough freedom to move with respect to the warping or bending of the cutting piece, and the cutting piece transport device itself is damaged by the warping or bending of the cutting piece.

[0006]

As described above, in order to solve the conventional problems, in the present invention, there is provided a material feeder provided with a plurality of material feed rollers at appropriate intervals in the front-rear direction on the front side of a cutting machine. A table is provided, and a carriage is provided above the material feeding table so as to be movable in the front-rear direction that approaches and separates from the cutting machine, and a vertical moving body is provided in the carriage so as to be movable in the vertical direction. A vice head having a pair of clamp jaws for clamping the cut pieces is provided so as to be movable in the left-right direction, and in order to sort the cut pieces to the left and right sides of the material feeding table, the vise head is moved from a reference position with respect to the vertical moving body. A left sorting cylinder to move leftward is provided, and a right sorting cylinder to move vice head rightward from the reference position with respect to the vertical moving body is provided. The tip of the left sorting piston rod in the sorting cylinder and the tip of the right sorting piston rod in the right sorting cylinder are connected by a connecting member, and the cut piece is fed (transported) while the cut piece is clamped by a pair of clamp jaws. )
When performing a large upward force on the vice head via the cut piece, the vertical moving body is configured to escape upward with respect to the carriage, and the cut piece is moved by a pair of clamp jaws. If a large left or right force is applied to the vice head via the cut piece when feeding the cut piece in a clamped state, the vise head moves leftward or rightward with respect to the vertical moving body. In order to escape to the left sorting piston rod and the right sorting piston rod are configured to be slidable left and right with respect to the connecting member, respectively, and between the distal end of the left sorting piston rod and the connecting member. A spring that can expand and contract in the left-right direction is interposed between the tip of the right sorting piston rod and the connecting member. That.

[0007]

According to the above construction, the cut piece cut and separated by the cutting machine is clamped by a pair of clamp jaws. By moving the carriage forward in a state where the cut pieces are clamped by the pair of clamp jaws, the cut pieces can be fed forward. At this time, if a large upward force acts on the vice head via the cut piece, the vertical moving body can escape upward with respect to the carriage. Also, if a large force acts on the vice head to the left or right via the cut piece,
As the spring contracts, the vise head can escape leftward or rightward with respect to the vertical moving body.

In order to sort the cut pieces sent to the left and right sides of the sheet feeding table, the vise head is moved leftward or rightward from the reference position with respect to the vertical moving body by operating the left sorting cylinder or the right sorting cylinder. To release the clamped state of the pair of clamp jaws.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.

Referring to FIG. 3, FIG. 3 is a plan view conceptually showing a positional relationship between the cutting machine 1 and the cut piece conveying device 3. As can be understood from FIG.
Is disposed on the front side (left side in FIG. 1) of the cutting machine 1.

As a cutting machine 1, a horizontal band saw machine is shown in the present embodiment. The horizontal band saw machine 1 includes a box-shaped base 5, and a fixed vice jaw 7 </ b> F and a movable vise jaw 7 </ b> M for holding and fixing a long work W on the upper surface of the base 5. Main body vice device 7 is provided. At a rear position (right side in FIG. 3) of the main body vise device 7, a material vise device (not shown) for feeding the workpiece W forward is provided so as to be movable back and forth. is there.

Further, a saw blade housing 11 having a band saw blade 9 for cutting a workpiece W clamped and fixed at a cutting position by a main body vice device 7 is provided on the upper surface of the base 5 so as to be vertically movable. I have. The saw blade housing 11 includes a driving wheel 13A around which the band saw blade 9 is wound and a driven wheel 1A.
3B and a movable saw blade guide 15F and a movable saw blade guide 15M for guiding and supporting the band saw blade 9 on both left and right sides of the workpiece W such that the tooth tip of the band saw blade 9 faces vertically downward. It is provided with.

It is desirable that the fixed saw blade guide 15F and the movable saw blade guide 15M be as close as possible to the workpiece W in order to suppress the bending of the band saw blade 9.

Further, the base 5 of the cutting machine 1 is provided with a support 16 for supporting a cut piece WP cut and separated from the work W at the cutting position.

Since a horizontal band saw having the above configuration exemplified as the cutting machine 1 is known, a detailed description of the configuration and operation of the horizontal band saw will be omitted.

Referring to FIGS. 1, 2 and 3, the cut piece conveying device 3 includes a conveying frame 17 arranged in front of the cutting machine 1. The transport frame 17
Left and right beam members 19 extending in the front-rear direction (X-axis direction)
R, 19L, a plurality of columns 21 (FIG. 2)
(See Reference).

Between the beam members 19R and 19L, there are rotatably supported a plurality of feed rollers 23 extending in the left-right direction (Y-axis direction) at appropriate intervals in the X-axis direction. On the beam member 19R side, a rectangular carriage frame 25 extending in the X-axis direction is supported by a cantilever from above or below from above the material feeding roller 23 by a frame or the like (not shown). I have.

A plurality of parallel guide rails 27 extending in the X-axis direction are provided on the front surface (the left side surface in FIG. 1) of the carriage gantry 25.
A carriage 31 is provided via a slider 29 so as to be movable in the X-axis direction by a drive device (not shown) including a ball screw, a nut member, a drive motor, and the like.

The carriage 31 is provided with a plurality of parallel guide shafts 33 extending in the vertical direction (Z-axis direction). A support frame 35 is integrated with an upper portion of the guide shaft 33, and a vertical moving body 37 is attached to a lower portion of the guide shaft 33.

On the right side of the carriage 33 in FIG. 2, there is provided a fluid pressure cylinder 39 as a shifting device for constantly shifting the vertical moving body 37 upward. The upper end of the piston rod 41 attached to the fluid pressure cylinder 39 is attached to the support frame 35.

When the hydraulic cylinder 39 is operated, the piston rod 41 rises upward, so that the support frame 35 moves in the same direction with respect to the carriage 31. 3
3 will be moved upward while being guided.

A vise head 45 is mounted on the vertical moving body 37 via a mounting member (part of the vertical moving body) 43. Further, the vise head 45 is provided with first and second clamp jaws 47 and 49 for clamping the cut pieces WP, respectively.
7 is fixed to the vise head 45, and the second clamp jaw 49 is provided movably in the Y-axis direction as shown in FIG. That is, the vise head 45
A fluid pressure cylinder 51 is provided at a lower portion of the piston, and a distal end of a piston rod 53 attached to the fluid pressure cylinder 51 is attached to the second clamp jaw 49.

With the above arrangement, when the fluid pressure cylinder 51 is operated and the piston rod 53 is moved to the left in FIG. 1, the first and second clamp jaws 47, 49 are provided.
And the piston rod 5
When the third clamp jaw 49 is moved rightward in FIG. 1, the second clamp jaw 49 moves rightward with respect to the first clamp jaw 47, so that the cut piece WP is unclamped.

Below the mounting member 43, a right sorting cylinder 55R and a left sorting cylinder 55L are provided as reciprocating devices for reciprocating the vise head 45 in the Y-axis direction. The right and left sorting cylinders 55R and 55L have piston rods 5 respectively.
7R and 57L are mounted. In addition, one ends of the piston rods 57R and 57L are connected via a connecting member 59 that penetrates slidably as shown in FIG. Tip of piston rod 57L and connecting member 59
And the end of the piston rod 57B and the connecting member 59
A spring 61 that can expand and contract in the left-right direction is interposed between them.

FIG. 4 shows a hydraulic circuit for right and left sorting of the vertical moving body 37 having the first and second clamp jaws 47 and 49. 4A is a left-sorted state, FIG. 4B is a reference state, and FIG.
(C) shows a state in which right sorting is performed.

4A, 4B and 4C, the right sorting cylinder 55R is provided with front and rear cylinder chambers 63F and 63B, and the left sorting cylinder 55L is provided with front and rear cylinder chambers. Cylinder chamber 65F, 6
5B is provided.

One end of a pipe 67 is connected to the front cylinder chamber 63F of the right sorting cylinder 55R, and the other end of the pipe 67 is connected to the B port of the direction switching valve 69. One end of a pipe 71 is connected to the rear cylinder chamber 63B of the right sorting cylinder 55R, and the other end of the pipe 71 is connected to the A port of the direction switching valve 69. The P port of the direction switching valve 69 is connected to the pump P via a pipe 73, and the R port is connected to the tank T via a pipe 75.

One end of a pipe 77 is connected to the front cylinder chamber 65F of the left sorting cylinder 55L, and the other end of the pipe 77 is connected to an A port of a sorting auxiliary direction switching valve 79. A pipe 8 is provided in the rear cylinder chamber 65B of the left sorting cylinder 55L.
1 is connected, and the other end of the pipe 81 is
It is connected to the B port of the sorting auxiliary directional switching valve 79.

The P of the sorting auxiliary direction switching valve 79
One end of a pipe 83 is connected to the port, and the other end of the pipe 83 is connected in the middle of the pipe 67.
One end of a pipe 84 is connected to the R port of the sorting auxiliary directional switching valve 79, and the other end of the pipe 84 is connected in the middle of the pipe 71.

By switching the direction switching valve 69 and the sorting auxiliary direction switching valve 79 to the state shown in FIG. 4B, the right and left sorting cylinders 55R and 55L maintain the neutral state and maintain the reference state. The cut piece WP is located on the feed roller 23 which is the position. Further, by setting the direction switching valve 69 and the sorting auxiliary direction switching valve 79 to the state shown in FIG. 4A, the left sorting cylinder 55L is operated, the vertical moving body 37 is left-sorted, and the cut piece WP is formed. Will be moved to the left. Further, by setting the direction switching valve 69 and the sorting auxiliary direction switching valve 79 to the state shown in FIG.
When R is actuated, the vertical moving body 37 is sorted to the right, and the cut piece WP is moved to the right.

FIG. 5 shows a hydraulic circuit in which the vertical moving body 37 is raised or lowered by the operation of the fluid pressure cylinder 39. In FIG. 5, the fluid pressure cylinder 39 is provided with upper and lower cylinder chambers 85U and 85D. One end of a pipe 87 is connected to the upper cylinder chamber 85U, and the other end of the pipe 87 is connected to a B port of a direction switching valve 89 having three positions and four ports.

The lower cylinder chamber 85D of the fluid pressure cylinder 39 is connected to one end of a pipe 91, and the other end of the pipe 91 is connected to the A port of the direction switching valve 89. Moreover, a check valve 9 is provided in the middle of the pipe 91.
3 are provided. The direction switching valve 89 includes solenoid valves SOL1 and SOL2. A pipe 95 is connected to the P port of the direction switching valve 89,
The other end of the pipe 95 is connected to the pump P.

A pipe 9 is connected to the R port of the directional control valve 89.
One end of the pipe 7 is connected, and the other end of the pipe 97 is connected to the P port of the direction switching valve 99 having two positions and four ports. This directional control valve 99 has a solenoid valve SOL3
Is provided. One end of the pipe 101 is connected to the A port of the direction switching valve 99, and the other end of the pipe 101 is connected to the tank T. A variable throttle valve 103 is provided at a B port of the direction switching valve 99 via a pipe, and is connected to the pipe 101 in parallel.

With the above configuration, when the pump P is operated, the pressure oil is sent to the P port of the direction switching valve 89 via the pipe 95. When the solenoid valve SOL2 provided in the direction switching valve 89 is turned ON, the pressure oil is supplied to the check valve 9
3. The vertical moving body 37 is raised by being supplied to the lower cylinder chamber 85D of the fluid pressure cylinder 39 via the pipe 91 and raising the piston rod 41. The pressure oil in the upper cylinder chamber 85U is supplied to the pipe 87 and the direction switching valve 89.
From the B port to the R port through the R port to the P port of the direction switching valve 99.

When the directional control valve 99 is in the state shown in FIG. 5, it is returned to the tank T at a high speed via the pipe 101. When the solenoid valve SOL3 is turned on, it is returned to the tank T at a low speed via the variable throttle valve 103 and the pipe 101.

When the solenoid valve SOL1 of the direction switching valve 89 is turned ON, the pressure oil from the pipe 95
The vertical moving body 37 is lowered by being supplied to the upper cylinder chamber 85U via 7 and the piston rod 41 being lowered. The pressure oil in the lower cylinder chamber 85D is returned to the tank T via the pipe 91 in the same manner as described above.

As described above, the vertical moving body 37 is formed of the cut piece WP.
When a large upward force is applied to the vice head 45 via the cut pieces WP during the material feeding, the check valve is not provided in the pipe 87, so that the vertical moving body 37 can freely move upward with respect to the carriage 31. It is designed to be able to escape to.

The configuration of the present invention is summarized as follows.

That is, on the front side of the cutting machine 1, there is provided a material-feeding table provided with a plurality of material-feeding rollers 23 at appropriate intervals in the front-rear direction (right-left direction in FIG. 2 and lower-upward direction in FIG. 3). A carriage 31 is provided above the table so as to be movable in the front-rear direction that approaches and separates from the cutting machine 1, and a vertical moving body 37 is provided in the carriage 31 so as to be movable in the vertical direction. A vise head 45 having a pair of clamp jaws 47 and 49 for clamping the WP can be moved in the left and right direction (right and left in FIG. 1, front and back in FIG. 2 and right and left in FIGS. 3 and 4). A left sorter for moving the vise head 45 relative to the vertical moving body 37 from the reference position to the left in order to sort the cut pieces WP to the left and right sides of the material feeding table. Provided with a ring cylinder 55L, right sorting cylinder 55 to move from the reference position the device head 45 relative to the vertical mover 37 to the right
R is provided, and the distal end of the left sorting piston rod 55L in the left sorting cylinder 55L and the distal end of the right sorting piston rod 55R in the right sorting cylinder 55R are connected by a connecting member 59. When a large force acts upward on the vice head 43 via the cut piece WP when feeding the cut piece WP in a state in which is clamped, the vertical moving body 37 moves upward with respect to the carriage 31. When the cut piece WP is fed in a state where the cut piece WP is clamped by the pair of clamp jaws 47 and 49, the cut piece WP is sent to the vise head 45 through the cut piece WP in the leftward or leftward direction. When a large rightward force acts, the vise head 45 moves leftward or rightward with respect to the vertical moving body 37. The left sorting piston rod 57L and the right sorting piston rod 57R are configured to be slidable in the left-right direction with respect to the connecting member 59, respectively, and the distal end of the left sorting piston rod 57L and the connecting member 59 A spring 61 capable of extending and contracting in the left-right direction is interposed between the connecting member 59 and the tip of the right and left sorting piston rods 55R.

The operation of the present invention is summarized as follows.

That is, the cut piece WP cut and separated by the cutting machine 1 is clamped by the pair of clamp jaws 47 and 49. Then, a pair of clamp jaws 47, 4
9, the carriage 31 is moved in the forward direction while the cut piece WP is clamped by
P can be sent forward. At this time, the cut piece W
When a large upward force acts on the vise head 45 via P, the vertical moving body 37 escapes upward with respect to the carriage 31. Further, the vise head 45 is cut through the cut piece WP.
When a large force acts on the vertical moving body 37 in the left or right direction, the spring 61 contracts, so that the vise head 45 can escape to the left or right with respect to the vertical moving body 37.

In order to sort the cut pieces WP sent to the left or right side of the transfer table, the vise head 45 is moved relative to the vertical moving body 37 by operating the left sorting cylinder 55L or the right sorting cylinder 55R. To the left or right to release the clamped state of the pair of clamp jaws 47, 49.

As described above, according to the invention of this embodiment,
Due to the fact that the cut piece WP has a warp or a bend, when a large force acts on the vice head 45 via the cut piece WP in the upward direction, the left direction, or the right direction while the cut piece WP is being fed, Since the vertical moving body 37 escapes upward with respect to the carriage 31 and the vise head 45 escapes leftward or rightward with respect to the vertical moving body 37, excessive force is applied to the vice head 45, the vertical moving body 37, and the like. Without this, damage to the cut piece transporting device 3 can be prevented as much as possible.

[0044]

[Effects of the Invention] As described above, according to the invention of the first aspect, the cut piece has a warp or a bend, and so on.
If a large upward, leftward or rightward force acts on the vice head via the cut piece while feeding the cut piece, the vertical moving body escapes upward with respect to the carriage, and the vice head Escapes leftward or rightward with respect to the vertical moving body, so that excessive force does not act on the vise head, the vertical moving body, and the like, and damage to the cut piece conveying device can be prevented as much as possible.

[Brief description of the drawings]

FIG. 1 shows a main part of the present invention, and shows II in FIG.
It is an arrow view along the line.

FIG. 2 is a view taken in the direction of the arrow II in FIG.

FIG. 3 is a plan view of a cutting piece conveying device in the cutting machine according to one embodiment for implementing the present invention.

FIG. 4 is an explanatory diagram of a hydraulic circuit when the vertical moving body is sorted left or right in the left-right direction with respect to the material feeding direction.

FIG. 5 is an explanatory diagram of a hydraulic circuit for moving a vertically moving body up and down in a vertical direction.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting machine 3 Cutting piece conveying device 9 Band saw blade 17 Conveying frame 23 Feeding roller 25 Carriage stand 31 Carriage 37 Vertical moving body 39 Fluid pressure cylinder (transfer device) 47, 49 First and second clamp jaws 55R, 55L Right, Left sorting cylinder 59 Connecting member

Claims (1)

(57) [Scope of request for utility model registration] 1. A feeder table provided with a plurality of feeder rollers at appropriate intervals in the front-rear direction at a front side of a cutting machine, and a carriage is provided above the feeder table before and after the carriage approaches and separates from the cutting machine. , A vice head provided with a pair of clamp jaws for clamping a cut piece is provided on the carriage so as to be movable in the left and right direction, In order to sort the cut pieces to the left and right sides of the material feeding table, a left sorting cylinder for moving the vise head leftward from the reference position with respect to the vertical moving body is provided, and the vice head is moved to the reference position with respect to the vertical moving body. A right sorting cylinder is provided to move from the left to the right. The tip of the left sorting piston rod in the left sorting cylinder and the right sorting When the leading end of the right sorting piston rod in the cutting cylinder is connected by a connecting member, and the cut piece is fed under a state in which the cut piece is clamped by a pair of clamp jaws, the cut piece is moved up to the vice head via the cut piece. When a large force acts in the direction, the vertical moving body is configured to escape upward with respect to the carriage, and when feeding a cut piece under a state where the cut piece is clamped by a pair of clamp jaws. When a large left or right force acts on the vice head via the cut piece, the left sorting piston rod and the left sorting piston rod are used to allow the vice head to escape leftward or rightward with respect to the vertical moving body. The right sorting piston rod is configured to be slidable left and right with respect to the connecting member, and the left sorting piston Cut pieces conveying device in a cutting machine, characterized by comprising interposed respectively stretchable spring in the lateral direction between the coupling member and the tip and between the right sorting piston rod of the connecting member and the distal end portion of the rod.