JPH04135117A - Residual material discharge method and device thereof in cutting machine - Google Patents

Abstract

PURPOSE:To effectively utilize a space so as to safely carry out a surplus material by discharging each surplus material with the center of gravity aligned to a discharge point set to a suitable position of a remainder yard, in the case of discharging the surplus material to the remainder yard. CONSTITUTION:An encoder 119, serving as a drive control means, is actuated simultaneously by rotating a roller 17 of a material feeder 5, so that in the case of discharging a surplus material Ws to a side of material suppliers 7A, 7b, 7C, a moving distance of the material can be controlled. That is, half of the total length of the surplus material Ws at the center of gravity, a distance between a discharge point P-P line and the position of the center of gravity, when a length of the surplus material Ws is measured, can be calculated, and the surplus material Ws is fed out by that distance. In this way, in all the surplus material Ws, despite its length, the center of gravity is aligned to the discharge point P-P line to arrange the surplus material Ws in a stable condition without obstructing an effective space, and also load collapse is eliminated in the case of discharging a large number of the surplus materials Ws, arranged in a remainder yard 9, bundled to the other place by a wire or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method and apparatus for discharging residual materials in a cutting machine.

(Prior Art) Conventionally, when cutting a workpiece to a desired length using a cutting machine such as a horizontal bandsaw machine, a material feeding device is provided to feed the workpiece to one side of the horizontal bandsaw machine, for example, to the rear side. ing.

A remaining key is provided on one side of the material feeding device in a direction perpendicular to the longitudinal direction.

The remaining material from the work cut by the horizontal band saw is discharged by the material feeding device, and transferred to the remaining material yard in order with the cut side edges of the remaining material aligned. be done.

(Problems to be Solved by the Invention) By the way, in the above-mentioned conventional residual material 14' IH means,
There is no problem if the overall length of the remaining material is the same, but normally the remaining material is discharged indiscriminately, either short or long.

For this reason, the remaining material transferred to the remaining material yard is discharged and transferred one after another with the end faces on the cut side aligned, so if the long remaining material is discharged after the short remaining material, the remaining material will be transferred to the remaining material yard. When aligned, the long remaining materials are tilted due to the transport impact.

Therefore, there was a problem in that the effective space of the remaining material yard was obstructed.

In addition, because the centers of gravity of the waste materials that are discharged indiscriminately differ, there is a problem that when the waste materials accumulated in the waste material yard are moved to another location using wire hooks, etc., it is not possible to take them out all at once. there were.

The purpose of this invention is to improve the above-mentioned problems by making the center of gravity of the remaining materials aligned and transferring them to the remaining material yard, thereby making effective use of space, and cutting the remaining materials so that they can be carried out in bulk. An object of the present invention is to provide a method and device for discharging residual materials in a machine.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above [1], the present invention transports a workpiece from a material feeding device to a cutting machine, cuts it to a desired length with the cutting machine, and then cuts it into a desired length. When returning the remaining materials from the material feeding device and discharging the remaining materials to the 4 yards of residual materials provided on one side of the material feeding device, each residual material is placed at a discharge point set at an appropriate position in the residual material yard. This is a method for discharging the remaining materials in cutting H, which is characterized by discharging the remaining materials with the centers of gravity of the materials aligned.

Further, the present invention includes a material feeding device that feeds a workpiece to a cutting machine equipped with a feeding vise, and a residual material yard provided on one side of this material feeding device, and which extends in the longitudinal direction of the material feeding device. The center of gravity is calculated from the length of each remaining material measured by the measuring means arranged at appropriate intervals, the length measuring means provided on the feeding vise, and the old measuring means and/or the length measuring means. In order to align the center of gravity of each of the remaining materials to a discharge point set at an appropriate position in the remaining material yard, a drive control means is provided in the material feeding device and controls the movement of each of the remaining materials. A material discharge device was constructed.

(Function) By adopting the method and device for discharging residual material in a cutting machine of the present invention, in order to cut a workpiece into a desired size with the cutting machine, when the material is fed by the material feeding device, the portion that becomes the remaining material The length of the remaining material is calculated using the IT 01 means provided in the material feeding device and/or the length measuring means of the material feeding vise provided in the cutting machine.

After the cutting process, when the remaining material is delivered to 1F using the material feeding device, it is placed at a position of 1/2 of the previously measured length of the remaining material, that is,
The center of gravity of the remaining material is positioned at a predetermined ejection point by the drive control means, and the remaining material is discharged to the remaining material yard.

As a result, even if there are leftover materials of different lengths, the centers of gravity of the leftover materials are aligned, so the leftover materials can be easily processed without being tilted.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

Referring to FIGS. 1 to 3, the cutting machine is, for example, a spink-type horizontal bandsaw machine 1 equipped with a material feeding vise 3, and the cutting machine is installed on the rear side of the material feeding vise 3 (on the right side in FIG. 1). is the material feeding device 5 for feeding the workpiece W to be cut into the horizontal band saw machine, or in the X-axis direction (horizontal direction in Fig. 1).
It is extended and erected.

On one side (upper side) in the Y-axis direction perpendicular to the longitudinal direction of this material feeding device 5, a plurality of material feeding devices 7A7B and 7C (three sets in this embodiment) are installed at appropriate intervals in the X-axis direction. This shrine is equipped with m 7 A.

A remaining material yard 9 is provided on the extension of 7B and 7C (lower side in FIG. 1).

The specific configurations of the horizontal band saw machine and the material feeding vise 3 are already well known, so a detailed explanation will be omitted, but the horizontal band saw machine 1 cuts the workpiece W into a desired shape.

Further, the material feeding high speed steel 3 is provided with a vise for gripping the workpiece W, and can freely move back and forth while gripping the workpiece W. Its moving means is, for example, a rack or pinion system driven by an electric motor. A length measuring means for detecting the amount of movement by a detection member such as a pulse encoder is provided on the pinion side.

The material feeding device 5 includes a rotatable roller 1 provided between support frames 11 and 13 and supported by a support member 15.
7 are arranged at appropriate intervals in the X-axis direction. As shown in FIG. 2, each roller 17 is provided with a plurality of sprockets 19 at appropriate positions, and a chino 21 is wound around each sprocket.

Moreover, as shown in FIGS. 1 and 2, a drive motor 23 is attached, and one of the sprockets 19 is fitted onto the output shaft of this drive motor 23.

With the above configuration, when the drive motor 23 is driven, the sprocket 19 fitted to the output shaft is rotated, and the chino 21 is run and rotated in the X-axis direction (horizontal direction in FIGS. 1 and 2). , each roller 17 is rotated. Therefore, the work W placed on each roller 17 is fed to the horizontal bandsaw machine 1, and the remaining material Ws is fed and returned to the 1 device 5 (1111.
Although not shown, each roller 17 is tiltable by a cylinder operated by fluid pressure or the like, and the workpiece W or residual material Ws placed on the roller 17 is fed to material feeding devices 7A and 7B, which will be described later.

It can be transferred onto the 7C chain conveyor.

Below the roller 17 in FIG. 1, a plurality of opposing rollers 25 (eight locations in this embodiment) are provided at appropriate positions. The opposed rollers 25 play the role of positioning and guiding when the work W placed on the rollers 17 is fed to the horizontal bandsaw machine 1. In addition, as shown in FIG.
is integrally installed, and this Kitsuka 27 has only $4 remaining.
It plays the role of pushing Ws towards the remaining material yard 9 side.

That is, the pusher 27 is attached to a hinge shaft 29 extending in the X-axis direction, and one end of a connecting plate 31 is attached to it, and the tip of a piston rod 33 is connected to the other end of the connecting plate 31. rod 3
A cylinder 35 for expanding and contracting 3 is supported by the support frame 1 via a bracket 37.

With the above configuration, when the cylinder 35 is avoided and the piston rod 33 is retracted as shown in FIG. Become.

Each material supply device 7A, 7B, 7C carries the workpiece W to the horizontal bandsaw machine 1.
Chain conveyors 39A, 39B, and 39C are provided as a plurality of material feeding conveyors forming part of material feeding devices 7A, 7B, and 7C at appropriate intervals in the X-axis direction, which is the direction in which materials are fed to the side. And each chain conveyor 39A, 39B
, 39C are supported by the support frame 11.13.

Sprockets 4 ] 43 are provided on the upper and lower sides on the right side of the support frame 1.1.1.3 in FIG. There is. Furthermore, a shaft 47 extending in the X-axis direction is attached to the axial center of the sprocket 41. A pulley 49 is fitted onto this shaft 47, and a drive motor 5] is supported on the support frame [1]. Another pulley 53 is attached to the output shaft of the drive motor 51, and a belt 55 is wound around this pulley 53 and the pulley 49.

With the above configuration, when the drive motor 51 is driven, the pulley 53. Belt 55. Shaft 47 via pulley 49
is rotated. When the shaft 47 is rotated, the chain conveyor 39A attached to the chain conveyor 45 is rotated in the Y-axis direction by rotating the chain conveyor 45 wound around the sprockets 41 and 43.

Further, sprockets 57, 59 are provided on the upper and lower sides of the support frame 11, 13 on the left side of the center in FIG. There is. Further, a shaft 63 extending in the X-axis direction is attached to the axial center of the sprocket 57. This shaft 63 has a pulley 6
5 is fitted, and a drive motor 67 is also supported on the support frame 11. This drive motor 67
Another pulley 69 is attached to the output shaft of the pulley 69, and a belt 71 is wound around this pulley 69 and the pulley 65.

With the above configuration, when the drive motor 67 is driven, the pulley 69. Belt 71. Shaft 63 via pulley 65
or rotated. When the shaft 63 is rotated, the chain conveyor 39B attached to the chain conveyor 61 is rotated in the Y-axis direction by rotating the chain conveyor 61 wound around the sprockets 57 and 59.

Similarly, sprockets 7 are provided on the upper and lower sides of the support frame 11.13 on the left side of the center in FIG.
3.75 is provided, and these sprockets 73 and 7
5 has a Cheno 77 wound around it. Furthermore, a shaft 7 extending in the X-axis direction is provided at the axial center of the sprocket 73.
is installed. This shaft 79 has a pulley 81
A drive motor 83 is also supported on the support frame 11. Another pulley 85 is attached to the output shaft of the drive motor 83, and a belt 87 is wound around this pulley 85 and the pulley 81.

With the above configuration, when the drive motor 83 is driven, the pulley 85. Held 87. shaft 79 via pulley 8]
is rotated. When the shaft 79 is rotated, the chain conveyor 39C attached to the chain conveyor 77 is rotated in the Y-axis direction by rotating the chain conveyor 77 wound around the sprockets 73 and 75.

Therefore, by individually driving the drive motors 51, 67.83, the chain conveyor 39A,
39B and 39C will be rotated independently. Furthermore, by electrically synchronizing and driving the drive motors 51 and 67°83, the chain conveyors 39A and 39B are
, 39B and 390 or 39A, 39B, and 39C are rotated simultaneously. Therefore, the workpiece W to be cut
Chain conveyor 39A, 3 with a crane or fork
9B, 39C, and chain conveyor 39A.
, 39B, and 39C independently or synchronously, they are moved to the material feeding device 5.

The remaining material yard 9 is disposed on the extension of the feeding device 7 in the Y-axis direction perpendicular to the X-axis direction of the material feeding device 5 (lower side in FIG. 1), and the support frame 13
In FIG. 1, a support frame 89, 91 is provided on the lower side. A plurality of chain conveyors 93 are provided above the support frames 89, 91 at appropriate intervals in the Y-axis direction.

A plurality of sprockets 95,97 are provided on the upper and lower sides of the support frame 13,91 in FIG. 1, and a chino 99 is wound around the sprockets 95 and 97. Furthermore, the axial center of the sprocket 97 has an
A shaft 101 extending in the fI11 direction is attached. A pulley 103 is fitted to this shaft] 01, and a drive motor 105 is fitted to the support frame 91.
is supported. Another pulley 107 is attached to the output side of this drive motor 105.
and the above-mentioned pulley]03 are wound with coils l-1 and 09.

With the above configuration, when the drive motor]05 is driven, the pulley 107. Belt 1o9. The shaft 101 is rotated via the pulley]03. When the shaft 101 is rotated, the chain 9 wound around the sprockets 95 and 97
By rotating the chain conveyor 93, the chain conveyor 93 is rotated in the Y-axis direction.

Therefore, the cut remaining material Ws from the horizontal bandsaw machine 1 is returned to the material feeding device 5, and then returned to the material feeding device 7A.

Chain conveyors 39A and 39B are 7B and 7C.

The remaining material Ws placed on top of 39C is kicked out by kicker 27 and transferred to chain conveyors 39A and 39B.

Placed on 39C, chain conveyor 39A 39B
, 39C onto the chain conveyor 93, where it comes into contact with the stopper member 111 and is temporarily stored.

Next, measure the length of the remaining material Ws; from this measurement value, calculate the center of gravity of the remaining material Ws, and control the moving distance to align the center of gravity with the discharge point of the remaining material yard 9. The drive control means will be explained.

The measuring means 113 and 1 for measuring the length of the remaining material Ws are, as shown in FIGS. 1 and 4, a roller 1 of the material feeding device 5.
Light receivers 83 to S8, such as photo sensors, for example, are disposed slightly from the pass line indicated by the X--X line on the top surface of the photodetector 7. The light receivers 83 to S8 are provided at a position R8 from the position 13 shown in FIG. In addition, R
The position from 3 to R8 indicates the distance from the cutting line (indicated by a - line in FIG. 4) cut by the band saw blade 115.

The light receivers R3 to R8 are arranged on the pedestal 117 to face the light receivers 83 to S8. , furthermore, the receivers S1 and 82
, the projectors R1 and R2 are provided on the material feeding high speed steel 3 as shown in FIG.

With the above configuration, the embodiment shown in FIG. 4 is an example, and the work W moves on each roller 17, and the cutting line K -
When the tip of the workpiece W reaches the K line, the movement of the workpiece W is stopped. At this time, the rear end of the workpiece W is 2
It is located at the position indicated by the dotted chain line.

That is, it is within the range of distances p5 and 16, and the emitter/receiver R6
and 86 are OFF, and R5 and 55 are ON.

From this state, the workpiece W is gripped by the material feeding vise 3, and the workpiece W is fed out by the material feeding vice 3 so as to have a desired cutting length. This position is the position shown by the solid line in FIG.
5 and 85 react more to OFF than ON. This emitter/receiver R
The number of times the workpiece W has moved since the time when 5 and 85 reacted is measured by length measuring means, such as an encoder, provided in the material feeding vise 3.

Therefore, the total length of the remaining material Ws is Li) 5-LX.

Note that LX is the distance moved by the feed vise 3 from the moment there is a change in the signals of the light emitters and receivers R5 and 85.

As mentioned above, when the leading end of the workpiece W is located at the cutting line (KK line) and the material is fed to the desired cutting length using the feed vise 3, the rear end of the workpiece W is located at the light emitting/receiving device R provided at either distance Mil. and S rays pass through. From the moment this passing is detected, the moving distance of the feed high speed steel 3 is measured, and the distance L
By subtracting X, the length of any remaining material Ws can be calculated as i
You can do tflFI.

Referring to FIGS. 1 and 5, the drive control means for aligning the center of gravity of the remaining material Ws with the discharge point of the remaining material yard 9 by knowing the length of the remaining material Ws is as shown in FIG. For example, the encoder 119 is the material feeding device 5.
It is directly connected to the roller 17 at the tip (left side in FIG. 1). In the remaining material yard 9, the remaining material W is handled in advance.
The discharge point is set at an appropriate position depending on the length of s. This discharge point is shown in Figure 5 as an example.
This is the position indicated by the line.

With the above configuration, the encoder 11 as a drive control means
9 operates at the same time as the roller 17 of the material feeding device W5 rotates, so it feeds the remaining material Ws (devices 7A, 7B,
'? 'When discharging to the C side, the moving distance can be controlled. In other words, since 1/2 of the total length of the remaining material Ws is the center of gravity, the distance between the preset discharge point l-P-P line and the center of gravity when measuring the length of the remaining material Ws can be calculated. The remaining material Ws is sent out by that distance. Since this control is performed by the encoder 119, it is possible to align the center of gravity of the remaining material Ws with the discharge point PP line.

In this way, the center of gravity of all remaining materials Ws of any length can be aligned with the discharge point P-P line, so 1. As shown in FIG. 5, the remaining materials Ws can be arranged in a stable state, and the effective space is not obstructed. Also,
When a large number of leftover materials Ws lined up in the leftover material yard 9 are bundled with wires or the like and discharged to another location, the loads do not fall apart.
Can be safely discharged.

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes. For example, in this embodiment, the length of the remaining material Ws is measured in the process of transporting the workpiece W.
When sending out the remaining material Ws after cutting, the amount of movement is calculated by detecting the moment when the signal of the first light projector/receiver changes as the rear end of the remaining material Ws moves. Then, by subtracting the amount of movement from the distance between the light emitter/receiver where the signal has changed and the cutting line (line K-), it is also possible to know the total length of the remaining material Ws.

〔Effect of the invention〕

As can be understood from the above description of the embodiments, according to the present invention, the remaining material that remains after being cut by the cutting machine is returned to the material feeding device by the material feeding device, and is discharged to the remaining material yard. . The workpiece is sent to the cutting machine using the material feeding device and moved to the desired cutting length using the material feeding vise. During this process, the length of the remaining material is measured, and when sending the remaining material to the remaining material yard, Control is performed so that the center of gravity of the remaining material is aligned with the discharge point set in the remaining material yard.

For this reason, conventionally, if the ends of the remaining materials were aligned and discharged to the remaining material yard, the effective space would be obstructed, or by aligning the center of gravity of the remaining materials, the remaining materials would not be tilted and the space could be used effectively. When the remaining materials are bundled and discharged, the remaining materials can be safely carried out without causing the load to collapse.

[Brief explanation of drawings]

FIG. 1 is a plan view of a discharge device in a cutting machine according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1,
Figure 3 is a cross-sectional view taken along the line ■-■ in Figure 1;
The figure is an explanatory diagram of the operation, and FIG. 5 is an explanatory diagram of the state in which the remaining materials are placed in the remaining materials yard. 1... Horizontal band saw machine 3... Material feeding vise 5...
Material feeding devices 7A, 7B, 7C... Material feeding device 9... Remaining material yard 113... Measuring means 119...
・Encoder (control means) S...Receiver (measurement means) R...Emitter (measurement means) P-P line...Discharge point agent Patent attorney Hidekazu Miyoshi

Claims (2)

[Claims] (1) After transporting the workpiece from the material feeding device to the cutting machine and cutting it to the desired length with the cutting machine, the remaining material is returned from the cutting machine to the material feeding device. A method for discharging residual materials in a cutting machine, characterized in that when discharging residual materials to a residual material yard, the centers of gravity of each residual material are aligned and discharged to a discharge point set at an appropriate position in the residual material yard. (2) Consisting of a material feeding device that feeds the workpiece to a cutting machine equipped with a feeding vise, and a residual material yard provided on one side of this material feeding device, with appropriate intervals in the longitudinal direction of the material feeding device. The center of gravity is calculated from the length of each remaining material measured by the measuring means arranged in the above, the length measuring means provided on the feed vise, and the length measuring means and/or the length measuring means, and the center of gravity of each remaining material is calculated. A cutting machine comprising: drive control means provided in the material feeding device to control the movement of each residual material so as to align the center of gravity of the material with a discharge point set at an appropriate position in the residual materials yard. A device for discharging residual materials.