JPH0825132A - Cutting method and its device - Google Patents

Abstract

PURPOSE:To cut and process a residual material before the last product length is cut so as to eliminate a residual material with the length longer than that of a product and so as to automatically process the residual material. CONSTITUTION:As a distance from a stopper 19 to a home position of a work feeding device 33 is preset, a moving distance of the work feeding device 33 from the home position is always detected and found by means of an encoder 39, so that the overall length L of work W is measured by means of a controller 57. If a residual material is generated when five pieces, for example, of the product length are cut, the length of the residual material is cut at first, and then, five pieces of the product length are cut. Alternatively, the work W is cut by cutting five pieces of the product length, and at last, cutting and processing the length of the residual member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting method and apparatus for cutting a work.

[0002]

2. Description of the Related Art Conventionally, a residual material is produced when a work is cut by an automatic cutting machine such as a horizontal band saw.
The length of this residual material is usually (product length + automatic feed impossible length)
Occurs. Moreover, this residual material is pushed by the next work to perform the residual material treatment.

Further, when a work is cut by an automatic cutting machine, it is usual to input the product length and the number of cuts of one station in advance for each step.

[0004]

By the way, in the above-mentioned conventional residual material processing method, about 1 product length remains as the residual material, so it is either discarded as it is or the cutting machine is switched to manual operation. I had to disconnect. Further, it was necessary to change the setup for each diameter of the work.

Further, in the conventional cutting system, since the product length and the number of cuts of one station are input for each step to perform the cutting process on the work, it is troublesome for the operator and the electric capacity is increased. It took a lot.

The object of the present invention is to enable the selection of the residual material treatment according to the accuracy of both ends of the work, and to automatically perform the residual material treatment, and to perform the pattern cutting in advance by the combination of the product length and the number of cuts. An object of the present invention is to provide a cutting method and an apparatus thereof which can be inputted and cut so as to reduce the electric capacity without requiring the labor of an operator.

[0007]

In order to achieve the above object, the cutting method of the invention according to the first aspect of the present invention is such that, when cutting from a certain work length to a plurality of product lengths, the accuracy of both ends of the work is improved. According to the above, one of the following remaining material processing methods is selected to process the remaining material and the work is cut.

(A) A method of cutting and treating the residual material one before cutting the final product length.

(B) A method of first cutting and treating the residual material.

(C) A method of finally cutting and processing the residual material.

Further, the cutting method of the present invention according to claim 2 is the cutting method according to claim 1, wherein after the tip of the cut residual material is abutted against a stopper projecting upward at a predetermined position. It is characterized in that the residual material is processed by being pushed out laterally by the carry-out means.

Further, in the cutting method of the present invention according to claim 3, when cutting from a certain work length into a plurality of product lengths, a combination of the product length and the number of cuts is preliminarily based on the input means and the display means. It is characterized in that the work is cut by the pattern cutting in which N pieces are set.

According to a fourth aspect of the present invention, there is provided a cutting device for cutting a work, a work feeding device having a work length measuring function for feeding the work to the cutting device, the cutting device, It is characterized in that it comprises a control device for controlling the work material feeding device, and the control device is provided with a residual material processing selection function means capable of selecting the residual material processing in accordance with the accuracy of both ends of the work.

A cutting apparatus according to a fifth aspect of the present invention is the cutting apparatus according to the fourth aspect, further comprising pattern cutting selection function means capable of selecting a pattern cut for setting N combinations of product length and number of cuts. It is characterized by that.

[0015]

As described above, according to the cutting method and apparatus of the present invention according to claims 1 and 4, (A) depending on the accuracy of both ends of the work, (A) the last product length is left before one is cut. Select one of the following methods: cutting and processing the material, (B) first cutting and processing the residual material, and (C) finally cutting and processing the residual material. By performing the cutting process, the residual material longer than the product length is eliminated and the residual material can be automatically processed.

According to the cutting method of the present invention according to claim 2, the cut residual material can always be automatically carried out to the same place.

According to the cutting method and apparatus of the present invention according to claims 3 and 5, the pattern cutting can be selected and set by previously inputting the product length and the number of cuts by the input means and the display means. Can be omitted and the electric capacity can be reduced.

[0018]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 5, as the cutting device 1, for example, a horizontal band saw machine 3 as a cutting machine is arranged. A work loading device 5 is arranged on the rear side (right side in FIG. 5) of the horizontal band saw machine 3, and a work W is temporarily placed on the left side (lower side in FIG. 5) of the work loading device 5. A work feeding device 7 that stocks and feeds the work W to the work loading device 5 is arranged. Also,
A work unloading device 9 is arranged on the front side (left side in FIG. 5) of the horizontal band saw machine 3.

Since the horizontal band saw machine 3 is already known, a detailed description thereof will be omitted, but a body vice device 11 for clamping the work W at the time of cutting is provided. Also,
The apparatus body 13 is provided with a saw blade housing, and a band saw blade is wound around a drive wheel and a driven wheel provided on the left and right portions of the saw blade housing.

With the above structure, the work W that has been fed
In the state of being clamped by the main body vise device 11, the work W is cut by rotating the band saw blade while rotating and lowering the saw blade housing.

In the work feeding device 7, a framed shelf 15 for temporarily stocking a plurality of works W is erected so as to be inclined toward the work loading device 5 side. A plurality of kickers 17 for loading the work W into the work loading device 5 are provided at appropriate intervals in the front-rear direction (left and right direction in FIG. 5) on the work loading device 5 side of the shelf 15.

A stopper 1 which will be described in detail later is provided in the vicinity of the front of the horizontal band saw machine 3 as the work carrying-out device 9.
A chain conveyor 21 with 9 is arranged.

As the work carrying-in device 5, a base table 23 extending in the front-rear direction (horizontal direction in FIG. 5) is arranged, and the left side (lower side in FIG. 5) of the base table 23 is rotatable. A carry-in roller conveyor 27 including a plurality of carry-in rollers 25 at appropriate intervals in the front-rear direction is arranged.

A plurality of parallel guide rails 29 extending in the front-rear direction are laid on the base table 23, and racks 31 extending in the front-rear direction are provided on the base table 23 between the guide rails 29. ing. The guide rail 29 is provided with a work material feeding device 33 that is movable in the front-rear direction.

That is, the main body frame 35, which is a part of the work material feeding device 33, is provided on the guide rail 29 via the LM guide. A pinion 37 meshing with the rack 31 is provided on the main body frame 35, and an output shaft of a servo motor 41 having an encoder 39 as a position detecting device is mounted on the pinion 37.

A vice 43 is provided on the body frame 35.
A and 43B are provided so as to face each other and can approach and separate from each other. Moreover, the work rear end detection sensors 45A and 45B, which are photoelectric sensors and the like for detecting the rear end of the work W, are provided inside the tips of the vices 43A and 43B.

The vices 43A and 43B are provided at one end of racks 47A and 47B extending vertically in FIG. The racks 47A and 47B are meshed with one pinion 49. Further, a pusher cylinder 51 is provided on the body frame 35.
A pusher 55 is provided at the tip of the piston rod 53 mounted on the pusher cylinder 51.

With the above structure, when the servo motor 41 is driven, the pinion 37 is rotated via the output shaft. Since the pinion 37 is meshed with the rack 31, the rotation of the pinion 37 causes the main body frame 35 to be guided by the guide rails 29 to move in the front-rear direction, so that the work material feeding device 33 moves in the front-rear direction. become. The moving distance at this time is detected by the encoder 39.

When the rack 47A is vertically moved in FIG. 5 by a fluid cylinder as an actuator (not shown), the rack 47B is moved through the pinion 49.
Is moved in the opposite direction to the rack 47A, and the vices 43A and 43B approach each other or move away from each other. Therefore, the work W is clamped or unclamped by approaching or separating the vices 43A and 43B. Will be done.

When the vices 43A and 43B are opened and moved together with the work material feeding device 33 to pass the rear end of the work W, the work rear end detection sensors 45A and 45B are activated to detect the work W. The trailing edge can be detected.

A control device 57 is arranged at a lower position of the horizontal band saw machine 3 in FIG.
5, a marking unit 59 is provided on the right side.

Stopper 1 in the work unloading device 9
As shown in FIG. 6, a carry-out roller conveyor 61 extending in the front-rear direction (the left-right direction in FIG. 6) is arranged in front of 9. This carry-out roller conveyor 61
6, a slope 63 is provided on the upper side of the stopper 19 side.
A residual material yard 65 is provided via the above, and a residual material unloading device 67 for unloading the residual material is provided at a position below and opposite to the residual material yard 65.

A first product stocker 69 is arranged below the carry-out roller conveyor 61 in FIG. 6, and second and third product stockers 71 and 73 are arranged above the carry-out roller conveyor 61 in FIG. They are arranged in series. The middle and the tip of the carry-out roller conveyor 61 (see FIG. 6).
At the left end), stoppers 75 and 77 having the same structure as the stopper 19 are provided.

A free conveyor 79 extending in the front-rear direction is arranged on the lower side of the first product stocker 69 in FIG. 6, and the left and right sides of this free conveyor 79 in FIG. Is provided.

With the above construction, for example, the residual material cut by the horizontal band saw machine 3 is stopped on the right side of the unloading roller conveyor 61 in FIG. 6, and then is extruded by the residual material unloading device 67 to pass through the inclined path 63. The remaining material is stocked in the yard 65.
Further, for example, the product cut by the horizontal band saw machine 3 is carried out by the carry-out roller conveyor 61, hits the stopper 75 or the stopper 77 and stops, and then the first, second, third
Any one of the product stockers 69, 71, 73 is carried out and stocked according to the length, diameter, type, etc. of the product. In addition, the products stocked in the first product stocker 69 are, for example, by the free conveyor 79, the thread cutting device 81,
It may be conveyed to 83 and threaded.

The operation until the workpiece W temporarily stocked in the workpiece feeding apparatus 7 is cut out by the horizontal band saw machine 3 and then carried out will be explained. First, the workpiece W in the workpiece feeding apparatus 7 is kicked. Work carry-in device 5 with 17
The sheet is fed onto the carry-in roller 25 of the carry-in roller conveyor 27 in FIG. Carry-in roller 2 of carry-in roller conveyor 27
The work W is driven to move the work W forward until it comes into contact with the stopper 19 provided on the chain conveyor 21 in the work unloading device 9. Roll-in roller 25 for set time
Then, the carry-in roller 25 is stopped.

The work material feeding device 33 has both vices 43A and 4A.
3B is widened, and the work W is detected by the work rear end detection sensors 45A and 45B provided at the front ends of the vices 43A and 43B. After the rear end of the work W is detected, the work feeding device 3
Move 3 at a slight speed. When the pusher 5 provided in the work material feeding device 33 comes into contact with the rear end of the work W, the servo motor 41 does not generate a pulse, so that it is determined that the work W has come into contact with the stopper 19 and the pusher 55, and the vice Four
Workpiece W is clamped with 3A and 43B.

In this state, the total length L of the work W is measured. That is, since the distance L ₀ from the stopper 19 to the origin position of the work material feeding device 33 is set in advance, the distance L _x moved by the work material feeding device 33 from the origin position is always detected by the encoder 39. Therefore, the total length L of the work W is measured by the control device 57 by L = L ₀ −L _x .

After the total length L of the work W is measured, the stopper 19 is retracted, the work W is sent to the set dimension L ₁ , the work W is clamped by the main body vice device 11 of the horizontal band saw machine 3, and the band saw blade is used. Will start cutting. After that, the cutting process is continuously performed. The pusher 55 is always in contact with the rear end of the work W for feeding and cutting work. The cut residual material is conveyed to the residual material yard 65 after being conveyed by the carry-out roller conveyor 61, and the products are the first, second and third product stockers 69, 71,
It will be carried out to any of 73.

In the horizontal band saw machine 3 of the cutting device 1,
For example, when performing a cutting process on a work W having a total length L, as shown in FIG.
As shown in FIG. 2, one of the three remaining material processing methods is selected according to the accuracy of both ends of the work W to process the remaining material and the work W can be cut. It was done. That is, when the remaining material length L ₂ (<L ₁ ) occurs when the product length L ₁ is cut from the total length L of the work W, for example, five pieces, as shown in FIG.
As shown in FIG. 1, first, the remaining length L ₂ is cut and processed, and thereafter, five pieces are cut at the product length L ₁ .

Further, as shown in FIG. 1 (B),
The work W is cut so that five pieces are cut at the product length L ₁ and finally the remaining material length L ₂ is cut and processed. Further, as shown in FIG. 1 (C), the product length L
After cutting four pieces at ₁ , the remaining material is cut at the length L ₂ and processed, and then the length L ₁ of _one product is cut.

In this way, by selecting from FIGS. 1A, 1B and 1C according to the accuracy of both ends of the work W to process the residual material and performing the cutting process on the work W, The residual material can be treated effectively, the residual material longer than the product length L ₁ is not generated, and the waste of the cutting time can be eliminated. That is, when the accuracy of the front end of the work W is not good, the method shown in FIG. 1A is used. When the accuracy of the rear end of the work W is not good, the method shown in FIG. If the front and rear ends of the work W are accurate, the method shown in FIG. 1C is selected to perform the cutting process on the work W to efficiently and automatically process the residual material. You can

Although the processing of the residual material shown in FIGS. 1A and 1B is already known, detailed description thereof will be omitted.
The processing of the residual material shown in (C) will be described more specifically.

As shown in FIG. 2A, the chain conveyor 21 is constructed by winding a chain 87 around sprockets 85A and 85B. The sprocket 8
A stopper 19 is provided on the shaft side of 5A via a support plate 89. One end of another support plate 91 is attached to the support plate 89. The tip of the piston rod 95 mounted on the air cylinder 93 is integrated with the other end of the support plate 91.

With the above structure, after the four products are cut by the treatment of the residual material W _A shown in FIG. 1C, the residual material W A
_The state in which _A is cut is the state shown in FIG. From this state, as shown in FIG. 2B, when the air cylinder 93 is operated and the piston rod 95 is extended, the support plates 91 and 89 are rotated and the stopper 19 is erected in a vertical state. Then, when the chain conveyor 21 is rotated and rotated as shown by the arrow, FIG.
As shown in (C), the residual material W _A is transferred to the stopper 19
Abutted against. In this state, the residual material W _A is the residual material carrying-out device 6
7 is pushed out in the lateral direction (the direction orthogonal to the paper surface in FIG. 2C), passes through the inclined path 63, and passes through the remaining material yard 65.
Stocked in.

As shown in FIG. 2D, after returning the stopper 19 to the original retracted position, the last product W _G is left by the chain conveyor 21 and the carry-out roller conveyor 61 in FIG. 2D. Is delivered in the direction of the 1st, 2nd, 3rd
It is stocked in any one of the product stockers 69, 71, 73. When the last product has a long length, it is extruded by the work material feeding device 33 to a certain length, but when the product has a short length, it is extruded by the pusher 55.

Next, based on the input means and the display means provided in the control device 57, the work W is cut by pattern cutting in which N combinations of product length and the number of cuts are set. , And the electric capacity can be reduced while saving the labor of inputting.

That is, as shown in FIG. 3, the cutting length L ₁ and the cutting number N _1, and the cutting length L ₂ and the cutting number N ₂ are combined for each piece of the work W and input for each N pieces. It was made possible to perform the cutting process with the pattern cut.

As shown in FIG. 4, the control device 57 is provided with a CPU 97, and the CPU 97 displays an input means 99 such as a keyboard for inputting various data and various data. A display means 101 such as a CRT is connected. Also, the CPU 97
A servo motor 41, an encoder 39, and workpiece rear end detection sensors 45A and 45B are connected to the servo motor 41, the encoder 39, and the work rear end detection sensors 45A and 45B, respectively.

A set value / memory 103 in which the distance L ₀ between the stopper 19 and the origin position of the work material feeding device 33 is inputted and stored in the CPU 97 in advance from the input means 99.
Is connected, and a work length calculation means 105 for automatically measuring the length L of the work W is also connected.
Further, the CPU 97 has a residual material processing selection function means 107,
The pattern cutting selection function means 109 and the machining program memory 111 are connected to each other.

When the work W is cut and processed by the above configuration, as described above, the front end of the work W is brought into contact with the stopper 19 and the rear end of the work W is detected by the work rear end detection sensors 45A and 45B. When the movement distance L _x of the origin position of the work material feeding device 33 is taken into the CPU 97 by the encoder 39, the work length calculating means 10 is detected.
In 5, the total length L of the work W is automatically measured at L = L ₀ −L _x .

From the input means 99, as shown in FIGS.
When one of the residual material processing described in (C) is designated and input, the residual material processing designated by the residual material processing function means 107 is selected and stored in the machining program memory 111, and this machining program Cutting processing is performed by the processing program stored in the memory 111.

Further, based on the input means 99 and the display means 101, when the product length for pattern cutting and the number of cuts as shown in FIG. 4 are designated and inputted, the pattern cutting selection function means 109 is provided. After the program for pattern cutting is selected and temporarily stored in the machining program memory 111, pattern cutting is performed by the machining program stored in this machining program memory 111.

The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate changes.

[0056]

As will be understood from the above description of the embodiments, according to the inventions of claims 1 and 4, (A) the last product length is cut according to the precision of both ends of the work. Select one from the method of processing the residual material before, (B) the method of cutting and processing the residual material first, and (C) the method of cutting and processing the residual material finally, and processing the residual material. In addition, by cutting the work, the residual material longer than the product length is eliminated and the residual material can be automatically processed.

According to the second aspect of the invention, the cut residual material can always be automatically delivered to the same place.

According to the third and fifth aspects of the present invention, since the pattern cut can be selected and set by previously inputting the product length and the number of cuts by the input means and the display means, the labor of input can be saved. The electric capacity can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram illustrating a residual material treatment of the present invention.

FIG. 2 is an operation explanatory diagram for processing a residual material by one of the residual material processing methods of the present invention.

FIG. 3 is an explanatory diagram for performing pattern cutting.

FIG. 4 is a configuration block diagram of a control device in the cutting device embodying the present invention.

FIG. 5 is a plan view of a cutting device according to an embodiment of the present invention.

FIG. 6 is a plan view showing a work unloading device portion in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cutting device 3 Horizontal band saw (cutting machine) 19 Stopper 33 Work material feeding device 39 Encoder (position detector) 41 Servo motor 43A, 43B Vise 45A, 45B Work retreat detection sensor 55 Pusher 57 Control device 99 Input means 101 Display means 105 Work Length Calculation Means 107 Residual Material Processing Selection Function Means 109 Pattern Cutting Selection Function Means

Claims (5)

[Claims] 1. When cutting from a certain work length into a plurality of product lengths, one of the following remaining material treatment methods is selected according to the accuracy of both ends of the work, and the remaining material is selected. And a cutting method for cutting a work. (A) A method in which the residual material is cut and processed before the final product length is cut. (B) A method of first cutting and processing the residual material. (C) A method of finally cutting and processing the residual material. 2. After the tip of the cut residual material is abutted against a stopper protruding upward at a predetermined position,
The cutting method according to claim 1, wherein the residual material is processed by laterally pushing it out by a carry-out means. 3. When cutting from a certain work length into a plurality of product lengths, the work is cut by pattern cutting in which N combinations of the product length and the number of cuts are set in advance based on the input means and the display means. A cutting method characterized by performing processing. 4. A cutting machine for cutting a work, a work feeding device having a work length measuring function for feeding the work to the cutting machine, and a control device for controlling the cutting machine and the work feeding device. The cutting device is characterized in that the control device is provided with a residual material processing selection function means capable of selecting a residual material processing according to the precision of both ends of the work. 5. The cutting apparatus according to claim 4, further comprising pattern cutting selection function means capable of selecting a pattern cut for setting N combinations of product length and number of cuts.