JPH0733002B2 - Control device for work material transfer 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 control device for a work material transfer machine, which feeds a work material such as a plate material or a square material placed on a table in a fixed direction.

[0002]

2. Description of the Related Art As a conventional technique, there is one described in Japanese Patent Application No. 4-23066 filed by the present applicant. 1 and 2, 1 is a table of a processing machine (not shown), and A is a processing material W placed on the table 1.
Is a transfer machine for transferring. This transfer machine A supports a case 2 on a column (not shown) that is vertically fixed to the table 1,
The transfer unit 3 is attached to the lower side of the case 2. Transfer section 3
As shown in FIG. 2, two support shafts 4 (one is omitted in FIG. 2) are laterally projectingly fixed to the front and rear portions (left and right in FIG. 2) of the case 2 to each support shaft 4. The pair of arms 5 are expanded in the front-rear direction and rotatably fitted and inserted, and the arms 5 are pressed and urged downward by an elastic body 6 made of a coil spring. A rotary shaft 7 is rotatably supported at the rotating end of each arm 5 about an axis parallel to the support shaft 4, and a roller 8 is fixed to the right end of the rotary shaft 7 in FIG. The outer periphery of each of these rollers 8 is formed of a rubber material having a high friction coefficient.

A feed motor 9 is attached to the upper part of the case 2, and the rotary shafts 7 are driven to rotate in synchronization with the feed motor 9 via a transmission mechanism (not shown) such as a chain and a sprocket. Further, as shown in FIG.
A support plate 11 is attached to the right side of the bracket via a bracket 10, and a pair of upper and lower leaf springs 12 and 13 are projected and locked to the support plate 11 to the right. The leaf springs 12 and 13 have their surfaces parallel to the surface of the table 1 and have the same rightward protrusion length. These leaf springs 12, 13
The projecting end (right end) of is integrally connected by the connecting plate 14,
The suspension plate 15 is suspended and fixed to the connection plate 14.

A rotary feed amount detector, that is, an encoder 16 is locked to the lower portion of the suspension plate 15. The encoder 16 projects its rotary shaft 17 in parallel with the rotary shaft of the roller 8 in the direction of the roller 8 and engages with the suspension plate 15 at the protruding end (left end) of the rotary shaft 17. The disc-shaped probe 18 is fixed. Further, as shown in FIG. 1, an arm 19 is projected and fixed to the right in the vertical middle portion of the support plate 11 described above, and two adjusting screws 20 and 21 are separated from each other in the arm 19 in the left and right directions. Screw it in. this house,
The adjusting screw 20 on the left portion is brought into contact with the lower leaf spring 13 as necessary to adjust the initial spring force of the spring 13 upward. The right adjusting screw 21 is brought into contact with the upper leaf spring 12 to adjust the initial height of the probe 18.

Reference numeral 22 denotes a control unit which decelerates the rotation speed of the feed motor 9 when a length measurement signal calculated based on a pulse signal output in proportion to the rotation amount of the encoder 16 approaches a set value. When the long signal reaches the set value, the feed motor 9 is stopped, and thereby the work material W on the table 1 is fed to the work machine in the left direction in FIG.

[0006]

In general, the discharge mode of the processed workpiece W depends on the type of processing (cutting, punching, etc.).
Depending on the case, it may be desired to select one of the forward direction (transfer end side), the reverse direction (supply side), and the discharge stop (within the processing machine A). For example, the processed material W perforated at a predetermined pitch is transferred in the forward direction and discharged to the transfer end side, the next material (processed material W) is sequentially supplied from the supply side, the same processing is performed, and the transfer end is performed. Discharge to the side. Alternatively, the long processed material W is cut at a predetermined pitch, and the end material having a pitch dimension that is cut last is discharged in the reverse direction (supply side), and the operator puts the end material in the end material storage box. Further, when the material lengths of the processed material W are not uniform, the material is cut a predetermined number of times and stopped (discharging is stopped), and the remaining material length is visually confirmed to decide whether to reprocess or to process the scrap material. There are discharge modes such as. Conventionally, an operator manually operates the above-mentioned discharge mode for each one of the processed materials, so that there is a drawback that it takes time and the work efficiency is lowered. The present invention, when a predetermined discharge mode is selected in advance,
It is an object of the present invention to provide a new control device for a work material transfer machine that solves the above-mentioned drawbacks by automatically continuing this discharge mode.

[0007]

Means for achieving the object] For the present invention to achieve the above object, a feed motor which is driven by a drive signal from the motor drive unit, processed placed on the table by the rotary member rotated by said transmission Ri motor A transfer unit that presses a material to transfer the processed material in a certain direction, a feed amount detection sensor that detects the feed amount of the processed material, a feed amount setting unit that sets the feed amount of the processed material, and a feed amount setting based on the measurement signal from the set feed amount and feed amount detection sensor over the section workpiece transferor of the control device having a feed control unit for controlling the motor drive unit to a predetermined feeding amount In (1), the discharge mode for discharging the processed material from the transfer section is set to forward, reverse, or stop, and the motor drive section is normally or reversely rotated, or to the motor drive section according to the set discharge mode. Issue a stop signal Is obtained by the configuration in which the mode determining unit for.

[Action] Discharge of processed material W or mill ends desired by the operator
If the direction is set in the mode setting section in advance, the workpiece W or
The scraps are discharged in the set direction when processing is completed.
It Also, set the mode setting section to the stop mode.
For example, the residual material is not discharged from the transfer machine at the end of processing,
Stop at the end state.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, FIG. 3 is a block diagram showing a circuit configuration of a control device applied to the transfer machine A of FIGS. Reference numeral 23 is a setting switch for setting processing conditions and the like, an operation panel panel on which operation switches and various display elements are arranged, 24 is a memory for storing a control program, various data, etc. A central processing unit (CPU) of a microcomputer that outputs various performance and control signals according to a control program stored in 24, 26 inputs a pulse signal from the encoder 16 to the CPU 25, and a control signal from the CPU 25 to an external device ( For example, the input / output unit for outputting to the feed motor 9 and the processing machine, and 27 is a motor drive unit for driving the feed motor 9.

FIG. 4 is a front view of the operation panel panel 23. 28 is a power switch, 29 is an emergency feed stop switch, 30 is an interlocking output switch for selecting whether to output a processing command signal to the processing machine, 31 is various parameters (origin dimension value, discharge timer value of the workpiece W) , Manual feed speed value, etc.), discharge mode, machining mode (one shot, single process, all processes), machining course (programmed machining pitch), etc., in the memory 24 before starting machining. A selection switch section, 32 is a ten-key switch, 33 is a quantity display section for displaying the processing quantity (remaining quantity), 3
4 is a course and process display section for displaying the selected machining course value, 35 is a feed amount (length) display section, 36 is a motor speed display section, 37 is a machining frequency display section, and 38 is a selection section. A display unit that displays the selected processing mode and a display unit 39 that displays the selected discharge mode. Reference numeral 40 is a start switch for starting processing.

Next, FIG. 5 shows the CP stored in the memory 24.
It is a flowchart which shows operation | movement of the control program of U25. The operator has a feed pitch (L), the number of machining times (N),
After setting the processing conditions such as the processing course and the discharge mode such as the forward direction (A), the reverse direction (B), or the stop (C) in the memory 24 by the mode selection switch unit 31 or the like,
When the start switch 40 is turned on, the control program starts (S1), and the feed motor 9 rotates normally (S2).
When the feed motor 9 rotates in the normal direction, the roller 8 transfers the processed material W in the forward direction (leftward in FIG. 2). However, until the workpiece W is transferred to the position of the encoder 16 and the stylus 18 of the encoder 16 contacts the upper surface of the workpiece W and outputs a length measurement signal, it is sent in a length measurement standby (S3) state. Abnormality detection is cut (S4). During this time, when the worker supplies the processed material W to the right end portion of the transfer section 3 in FIG.
Moves the work material W in the forward direction, and when the probe 18 of the encoder 16 comes into contact with the upper surface of the work material W and rotates, the measuring length starts (S6).

The CPU 25 compares the feed pitch (L) stored in the memory with the actually measured feed amount (Li) calculated based on the length measurement signal from the encoder 16 to obtain (L = L
When i) is reached, a sizing signal is output (S7) and the feed motor 9 is stopped (S8). When the sizing signal is output,
The CPU 25 outputs a processing command signal to the processing machine (not shown) from the input / output unit 26 (S9). The processing machine starts the processing when the processing command signal is input from the input / output unit 26, and returns the processing completion signal to the input / output unit 26 when the processing is completed.

When the CPU 25 determines that the processing completion signal is output from the processing machine (S10), the CPU 25 subtracts the set number of times of processing (N) (N = N-1) and (S1).
1), it is determined whether or not the subtracted number of machining operations (N) is (N = 0) (S12). When the number of times of machining (N) is not (N = 0), the feed motor 9 is used to machine the next machining pitch.
Is normally rotated (S13), and the process again jumps to the measurement start (S6).

Meanwhile, if the processing number (N) of (N = 0), i.e., when the processing number set in advance has been completed,
The CPU 25 controls the motor drive unit 27 according to the set ejection mode. When the set discharge mode is the forward direction (A) (S14), the feed motor 9
In the normal direction (S15), and the roller 8 of the transfer unit 3 moves the workpiece W
(Mill ends) is automatically ejected in the forward direction (left side in Fig. 2)
It Further, when the set discharge mode is the reverse direction (B) (S16), the feed motor 9 is rotated in the reverse direction (S17) and moved.
The rollers 8 of the feeding section 3 are arranged in the reverse direction (see FIG.
It is automatically discharged to the right).

When the set discharge mode is stopped (C), the feed motor 9 is stopped (S21) and then
Until there is a command, to wait to stop at that position. Yo
The operator visually confirms the length of the remaining scraps and
You will be given time to decide whether or not the leftover material is available.

The CPU 25 starts a predetermined time (for example, 1 to 1) preset in the control program from when the processed material (mill end material) automatically ejected in the forward direction and the backward direction is separated from the probe 18 of the encoder 16 (S18). A program timer (discharging delay timer) that counts 9 seconds is activated, and during the delay time (S19), feed error detection is cut (S20). When the discharge delay timer times up (S19), the CPU 25 stops the feed motor 9 (S21) and ends the control program (S22).
To

FIG. 6 is a block diagram showing the functional arrangement of the above embodiment. Reference numeral 41 denotes a mode setting section for setting the discharge mode on the operation panel panel 23, and 42 denotes the discharge mode from the workpiece transfer section in the forward and reverse directions as shown in (S14 to S17 and S21) of the flowchart of FIG. A mode determination unit for selecting the direction or stop, 43 is a feed amount setting unit that sets various feed amounts (L) in the machining course on the operation panel panel 23, and 44 is the feed set in the feed amount setting unit 30. A feed control unit that controls the motor drive unit 27 so that a predetermined feed amount is obtained by comparing the amount (L) with a length measurement signal calculated based on an output signal from the encoder 16 that is a feed amount detection sensor. .

[0017]

According to the present invention, the dimension of the processed material W is constant.
If the discharge direction is set in advance,
If left, the remaining material will be automatically discharged in the set direction.
When the dimension of the processed material W is not fixed, the mode setting
If the part is set to stop mode, it will stop at the end of processing.
When visually observing the stopped residual material to determine whether reprocessing is possible
All of these can be done by the worker
Compared to the case of making a decision based on
The work efficiency is improved.
There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a sectional front view of a main part of a transfer machine.

FIG. 2 is a side view of a transfer machine.

FIG. 3 is a block diagram showing a circuit configuration of a control device according to the present invention.

FIG. 4 is a front view of an operation panel panel according to the present invention.

FIG. 5 is a flowchart showing the operation of the control program according to the present invention.

FIG. 6 is a block diagram showing a functional configuration according to the present invention.

[Explanation of symbols]

 1 Table A Transfer device 2 Case 3 Transfer part 4 Support shaft 5 Arm 6 Elastic body 7 Rotating shaft 8 Roller 9 Feed motor 16 Encoder 17 Rotating shaft 18 Measuring element 23 Operation panel panel 24 Memory 25 Microcomputer (CPU) 26 Input / output unit 27 Motor Drive Unit 28 Power Switch 29 Feed Stop Switch 30 Interlocking Output Switch 31 Mode Selection Switch Unit 32 Numeric Keypad Switch 33 Quantity Display 34 Course and Process Display 35 Feed Rate (Length) Display 36 Motor Speed Display 37 Processing frequency display section 38 Processing mode display section 39 Discharge mode display section 40 Start switch 41 Mode setting section for setting discharge mode 42 Mode determination section 43 Feed amount setting section 44 Feed control section W Processing material

Claims (1)

[Claims] 1. A feed motor driven by a drive signal from a motor drive unit, and a rotating body rotated by the feed motor presses a work material placed on a table to transfer the work material in a certain direction. A transfer unit, a feed amount detection sensor for detecting the feed amount of the processed material, a feed amount setting unit for setting the feed amount of the processed material, and a feed amount and a feed amount detection sensor set in the feed amount setting unit. In a control device for a work material transfer machine having a feed control unit for controlling the motor drive unit so that a predetermined feed amount is obtained based on a length measurement signal, a discharge mode for discharging a work material from a transfer unit in a forward direction ,Reverse direction,
Or, the discharge mode setting part that is selectively set to stop, and the motor drive unit can be rotated in the normal or reverse direction according to the set discharge mode.
Alternatively, a control device for the work material transfer machine is provided with a mode determination unit that outputs a stop signal.