WO2023048270A1 - Material feeding device, pressure calculation device, and method for controlling material feeding device - Google Patents

Material feeding device, pressure calculation device, and method for controlling material feeding device Download PDF

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Publication number
WO2023048270A1
WO2023048270A1 PCT/JP2022/035582 JP2022035582W WO2023048270A1 WO 2023048270 A1 WO2023048270 A1 WO 2023048270A1 JP 2022035582 W JP2022035582 W JP 2022035582W WO 2023048270 A1 WO2023048270 A1 WO 2023048270A1
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WIPO (PCT)
Prior art keywords
pressure
unit
information
feeding device
coil material
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PCT/JP2022/035582
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French (fr)
Japanese (ja)
Inventor
裕和 後藤
啓 今井
Original Assignee
株式会社アマダ
株式会社アマダプレスシステム
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Application filed by 株式会社アマダ, 株式会社アマダプレスシステム filed Critical 株式会社アマダ
Publication of WO2023048270A1 publication Critical patent/WO2023048270A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web

Definitions

  • the present invention relates to a material feeding device, a pressure computing device, and a control method for the material feeding device.
  • a material feeding device (hereinafter referred to as a feeder) that feeds coil material to a press device.
  • the feeder has an upper feed roll and a lower feed roll, and conveys the coil material while sandwiching it between the upper feed roll and the lower feed roll.
  • the upper feed roll is pressed against the lower feed roll by the pressure received from the pressure section, and the pressure section uses, for example, an air cylinder (see, for example, Patent Document 1).
  • the air pressure of the air cylinder is manually adjusted and set for each coil material.
  • the present invention has been made in view of the above circumstances. and to provide a control method for a material feeding device.
  • a material feeding device comprising a first rotating body and a second rotating body that contacts the first rotating body and conveys a coil material together with the first rotating body, a pressure source supplying a gas or liquid; a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second rotating body; a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value; an input unit for inputting information about the coil material and information about the material feeding device; a display unit for displaying the set value obtained based on the information about the coil material and the information about the material feeding device input by the input unit; A material feeder comprising a (2) A pressure calculating device for a mechanical device comprising a first member and a second member that abuts against the first member and sandwiches a material together with the first member, The mechanical device is
  • a material feeding device that automatically sets a set value of a pressurizing unit that presses an upper feed roll so as to obtain a pressure suitable for a coil material, a pressure calculation device, and control of the material feeding device can provide a method.
  • FIG. 1 is a schematic front view showing the configuration of the press system of the embodiment.
  • FIG. 2 is a schematic perspective view showing the configuration of the press device of the embodiment.
  • FIG. 3 is a block diagram showing the configuration of the feeder of the embodiment.
  • FIG. 4 shows setting screens displayed on the display unit of the embodiment, (a) showing the setting screen before input by the operator, and (b) showing the setting screen after input by the operator.
  • FIG. 1 is a schematic front view showing the configuration of the press system of this embodiment. The conveying direction and upstream and downstream are also shown in FIG.
  • the press system of this embodiment includes an uncoiler 100 , a feeder 200 and a press device 300 .
  • the uncoiler 100 and feeder 200 operate in conjunction with the processing operation of the press device 300 .
  • a leveler which is a correction device for correcting the curl of the coil material, may be arranged between the uncoiler 100 and the feeder 200, and furthermore, between the leveler and the feeder 200, the bending (loop) of the coil material may be corrected.
  • a controlling loop table may be arranged.
  • the uncoiler 100 which is a holding device for holding the coil material, has a mandrel 110, a control section 130, and a driving section 140.
  • the mandrel 110 holds a coil material 120 that is an object (material) to be processed by the press device 300 .
  • the inside diameter of the coiled material 120 is held by the mandrel 110 .
  • the control unit 130 causes the driving unit 140 to rotate the mandrel 110 and unwind the coil material 120 so as to be interlocked with the processing operation by the press device 300 .
  • FIG. 2 is a schematic perspective view showing the configuration of the press device 300 of the present embodiment, for example, a schematic view of the integrated straight side frame type or C frame type press device 300.
  • the press device 300 is, for example, a device that performs progressive press processing (progressive processing) in which multiple processes are performed on multiple stages.
  • FIG. 2 shows the conveying direction of the coil material 120, the upstream (left), the downstream (right) in the conveying direction, the vertical direction, and the front and rear directions (front and rear).
  • the press device 300 includes a drive motor 304 , a transmission mechanism 306 , a crankshaft 308 , a connecting rod 310 , a slide 312 and a bolster 322 inside and outside a housing 302 .
  • the press device 300 also has a controller 314 , a storage section 315 , a display section 316 and an input section 318 .
  • the press device 300 has a sensor 324 , a rotary encoder 325 and a gib 326 .
  • Progressive processing is also called transfer stamping, and the transfer press tool that constitutes it can be a single press die (upper and lower dies) by itself, or can be arranged in a continuous station. There can also be multiple press dies.
  • the drive motor 304 is, for example, a servo-controlled servomotor, which vertically moves the mold 303 to be described later via a transmission mechanism 306, a crankshaft 308, and a connecting rod 310 while controlling the amount and direction of rotation.
  • the transmission mechanism 306 includes transmission members such as gears and belts, and transmits the rotation of the motor shaft of the drive motor 304 to the crankshaft 308 .
  • Control signals to drive motor 304 are sent from controller 314 .
  • the crankshaft 308 and connecting rod 310 are for converting the rotational movement of the motor shaft transmitted by the transmission mechanism 306 into reciprocating movement (vertical movement in this embodiment).
  • the rotation of the motor shaft causes the crankshaft 308 to rotate, and the rotation is transmitted to a connecting rod 310 having one end connected to the crankshaft 308 to move the connecting rod 310 up and down.
  • crankshaft 308 is provided with a rotary cam switch (not shown) that outputs an ON signal or an OFF signal in conjunction with the rotation of the crankshaft 308 .
  • the rotary cam switch outputs an ON signal or an OFF signal when, for example, the rotation of the crankshaft 308 reaches a predetermined angle, in other words, when it reaches a predetermined timing during machining operation.
  • the timing at which the rotary cam switch outputs the ON signal (or OFF signal) is hereinafter referred to as output timing.
  • the controller 314 interlocks with the uncoiler 100 and the feeder 200 based on the signal output from the rotary cam switch to perform machining operations.
  • a slide 312 is connected near the other end of the connecting rod 310 . As the connecting rod 310 moves up and down, the slide 312 moves up and down along the gib 326 .
  • a bolster 322 is arranged to face the slide 312 in the press device 300 .
  • An upper mold 303 a as a part of the mold 303 is attached to the surface of the slide 312 facing the bolster 322 (lower surface in this embodiment).
  • a lower mold 303b that forms a pair with an upper mold 303a is mounted as a part of the mold 303 on the surface (upper surface in this embodiment) of the bolster 322 facing the slide 312 .
  • the coil material 120 as an object to be processed is placed between the upper die 303a and the lower die 303b, and pressed by the upper die 303a and the lower die 303b.
  • the coil material 120 is conveyed, for example, from the left (upstream) side to the right (downstream) side in FIG.
  • processing is performed from the upstream side in the conveying direction of the coil material 120 to the early stage, and processing is performed in the downstream side in the conveying direction of the coil material 120 in the final stage.
  • the drive motor 304 rotates under the control of the controller 314 .
  • Rotation of the drive motor 304 is transmitted to the connecting rod 310 via the transmission mechanism 306 and the crankshaft 308, and the slide 312 moves up and down.
  • the slide 312 moves downward, the upper mold 303a and the lower mold 303b are pressed, and the coil material 120 is pressed.
  • the transmission mechanism 306 is provided with a rotary encoder 325 which is rotation speed detection means for detecting the rotation speed of the crankshaft 308 .
  • the controller 314 can detect the position of the slide 312 by detecting the rotation speed of the crankshaft with the rotary encoder 325 .
  • the sensor 324 which is load detection means for detecting the load during processing, is a sensor for detecting the load acting on the connecting rod 310 when the press device 300 presses the coil material 120, and is, for example, a load cell.
  • Sensors 324 may be, for example, strain gauges mounted on housing 302 .
  • Sensor 324 may be installed at any position on connecting rod 310 (for example, near the center).
  • a plurality of sensors 324 may be installed. For example, the strain on the left and right sides of the housing 302 may be detected, and the detected results may be added to obtain the total load. 2, the side where the display unit 316 is arranged is the front side of the press device 300. As shown in FIG.
  • the controller 314 controls the press device 300 according to various programs stored in the storage unit 315.
  • a display unit 316 displays data indicating the state of the press device 300 .
  • the input section 318 is used to input data necessary for operating the press device 300 .
  • the input unit 318 is used when the user inputs the length of conveying the coil material 120 (hereinafter referred to as the feeding length).
  • the feed length is, for example, the length of the processing stage in the transport direction.
  • the controller 314 controls so that the feeder 200 and the press device 300 work in conjunction with each other. In the press machine 300 that performs progressive processing, when the processing in one processing stage is completed, the controller 314 causes the feeder 200 to convey the coil material 120 to the next processing stage at a predetermined feed rate by a predetermined feed length. to control.
  • the feeder 200 is a material feeding device (mechanical device) that feeds the coil material 120 held by the uncoiler 100 to the press device 300 .
  • FIG. 3 is a block diagram showing the configuration of the feeder of the embodiment, and also shows the front-rear direction below the upper feed roll and the lower feed roll. Hereinafter, description will be made with reference to FIG. 3 as well.
  • the feeder 200 has a lower feed roll 210, an upper feed roll 220, pressure sections 230, 232, regulators 240, 242, and control valves 250, 252.
  • the feeder 200 has a calculation section 260 , an operation section 270 , a display section 272 , an input section 274 , a pressure source 280 , a control section 290 , a storage section 292 and a drive section 294 .
  • a lower feed roll 210 which is a first rotating body (first member), is rotatably attached to a fixed frame (not shown) of the feeder 200.
  • the upper feed roll 220 which is a second rotating body (second member), moves vertically within a range in which the degree of pressure applied to the lower feed roll 210 can be adjusted according to the pressure applied from the pressure units 230 and 232. possible and rotatable.
  • the driving section 294 rotates the lower feed roll 210 .
  • the rotation of the lower feed roll 210 is transmitted to the upper feed roll 220 by transmission means such as gears (not shown).
  • the lower feed roll 210 and the upper feed roll 220 feed the coil material 120 to the press device 300 at a predetermined feed length.
  • Control of the driving section 294 is controlled by the control section 290 by a known control method.
  • the pressure unit 230 which is the first pressure unit, applies pressure calculated by the calculation unit 260 to one end of the upper feed roll 220, for example, the front end.
  • the pressure unit 232 which is the second pressure unit, applies the pressure calculated by the calculation unit 260 to the other end of the upper feed roll 220 , for example, the rear end.
  • the pressurizing units 230 and 232 generate pressure corresponding to the flow rate of gas (air or other gas) or liquid (oil or other liquid) supplied from the pressure source 280 with the flow rate adjusted by the control valves 250 and 252.
  • the pressurizing units 230 and 232 are, for example, air springs or single-acting cylinders.
  • the control valves 250 and 252 control the flow rates of gases, liquids, etc. supplied from the pressure source 280 to the pressurizing units 230 and 232 .
  • the control valve 250 controls the flow rate of gas or liquid supplied from the pressure source 280 to the pressurizing section 230
  • the control valve 252 controls the flow rate of gas or liquid supplied from the pressure source 280 to the pressurizing section 232 .
  • the control valves 250 and 252 are configured to be controllable between a fully open state and a fully closed state by the computing section 260 .
  • Control valves 250, 252 are, for example, proportional pressure control valves.
  • the regulators 240, 242 are provided between the control valves 250, 252 and the pressurizing units 230, 232, and are adjusting units for sending gas or liquid with stable pressure to the pressurizing units 230, 232.
  • Regulator 240 is provided between control valve 250 and pressurizing section 230
  • regulator 242 is provided between control valve 252 and pressurizing section 232 .
  • Regulators 240 and 242 are, for example, pilot pressure reducing valves. The reason for providing the regulators 240 and 242 is as follows.
  • control valves 250 and 252 are proportional pressure reducing valves
  • the drive section inside the proportional pressure reducing valves will operate. The number of times will increase, and there is a possibility that the life will be shortened. Therefore, regulators 240 and 242 are provided to stabilize pressure fluctuations in the control valves 250 and 252 .
  • the release operation is an operation for separating the upper feed roll 220 from the lower feed roll 210 .
  • the regulators 240 and 242 are not limited to pilot-type pressure reducing valves, and may be, for example, directional switching valves, stop valves (Globe Valves), or the like to hold the pressure on the actuator side.
  • the calculation unit 260 calculates the pressing force when the pressing unit 230 presses the upper feed roll 220 based on parameters input via the operation unit 270 .
  • the calculation unit 260 calculates, for example, the plate thickness, plate width, length, specific gravity, etc. of the coil material 120, the acceleration when the coil material 120 is conveyed, and the contact portions between the coil material 120 and the upper feed roll 220 and the lower feed roll.
  • the pressure applied when pressing the upper feed roll 220 is calculated based on the coefficient of friction at (the nip portion) and the like.
  • the set value of the gas or liquid pressure corresponding to the pressurizing force generated by the pressurizing units 230 and 232 for each coil material 120 can be automatically set without manually setting. .
  • the computing unit 260 is, for example, a PLC (Programmable Logic Controller) or the like, and has a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory) (all not shown). Computation is performed using the RAM as a work area according to the stored program.
  • PLC Process Control Circuit
  • CPU Central Processing Unit
  • RAM Random Access Memory
  • ROM Read Only Memory
  • the operation unit 270 has a display unit 272 that displays various information of the feeder 200 and presents it to the operator, and an input unit 274 that accepts input of various information from the operator. For example, the operator operates the input unit 274 while looking at the setting screen displayed on the display unit 272 to input the parameters required for the calculation by the calculation unit 260 .
  • the display unit 272 may be a known display means such as a liquid crystal display.
  • the input unit 274 may be, for example, a known input means such as a touch panel realized on the display unit 272, a keyboard, or a numeric keypad. In FIG. 4, which will be described later, the display unit 272 is assumed to be a touch panel and an input unit 274 as well. Note that the calculation unit 260, the display unit 272, and the input unit 274 also function as a pressure calculation device.
  • the pressure source 280 is a source for supplying gas, liquid, or the like for generating pressurization force by the pressurizing portions 230 and 232, and is an air pressure source when the pressurizing portions 230 and 232 are air springs.
  • the pressure source 280 is a tank or the like filled with a gas such as air or a liquid such as oil. In the following description, it is assumed that the pressure source 280 is filled with air, and the setting value obtained by the calculation section 260 is the air pressure (hereinafter referred to as air pressure).
  • the control unit 290 controls the feeder 200 in cooperation with the controller 314 of the press device 300.
  • the control unit 290 has, for example, a CPU, RAM, and ROM (none of which are shown), and the CPU controls the feeder 200 according to a program stored in the ROM, using the RAM as a work area. Note that the operation of the feeder 200 during processing by the press device 300 is well known and will not be described.
  • FIG. 4A and 4B show setting screens displayed on the display unit 272.
  • FIG. 4A shows the setting screen before input by the operator
  • FIG. 4B shows the setting screen after input by the operator. Note that the numerical values in FIG. 4B are values for simplifying the explanation, and do not represent actual values.
  • control unit 290 prompts the operator to input necessary information when the calculation unit 260 calculates the air pressure. ) is displayed on the display unit 272 .
  • the setting screen 400 in addition to the information "feed roll pressurization air pressure setting screen" indicating that it is a screen for setting the air pressure of the pressurizing units 230 and 232 for pressurizing the upper feed roll 220, a coil material input A field 410, a parameter input field 420, and a calculation start button 430 are displayed.
  • the setting screen 400 also displays a calculation result column 440 in which the calculation result by the calculation unit 260 is displayed. Further, the setting screen 400 also displays an input key group 450 for receiving input from the operator.
  • the coil material input field 410 is a field in which information about the coil material 120 is input. This is because the pressing force of the upper feed roll 220 is set according to the coil material 120 .
  • the information about the coil material includes, for example, the thickness, width, loop length, and specific gravity of the coil material 120 .
  • the plate thickness (mm) of the coil material 120 is the thickness of the coil material 120 and the length of the coil material 120 in the vertical direction in FIG.
  • the plate width (mm) of the coil material 120 is the width of the coil material 120 and the length of the coil material 120 in the direction substantially orthogonal to the conveying direction, that is, the front-rear direction in FIG.
  • the loop length (mm) is the length of the portion of the coiled material 120 formed on the upstream side of the feeder 200 that bends downward (hereinafter referred to as a loop).
  • the specific gravity is the specific gravity of the coil material 120 .
  • the operator inputs information about the coil material 120, but the present invention is not limited to this.
  • the model number of the coil material 120 and information about the coil material 120 are associated with each other and stored in a database, such as a storage unit such as a server. The configuration may be read out.
  • parameters necessary for obtaining the air pressure are input.
  • information about the feeder 200 is input to the parameter input field 420 .
  • the information about the feeder 200 includes, for example, friction coefficient, top speed, acceleration time, actuator effective cross-sectional area, and number of actuators.
  • the coefficient of friction is the coefficient of friction between the coil material 120 and the upper feed roll 220 and the lower feed roll 210 .
  • the top speed (meters per second (m/sec or m/s)) is the maximum length of the length of the coil material 120 that the feeder 200 feeds to the press device 300 in one minute (hereinafter referred to as the maximum feed length). ) in units of meters per second.
  • the acceleration time (msec) is the time required for the feeder 200 to feed the coiled material 120 at the maximum feed length per minute, that is, the time required to reach the top speed.
  • the top speed and acceleration time are also speeds according to the rotation speed of the press device 300 .
  • the actuator effective cross-sectional area is the effective cross-sectional area (m 2 ) of the pressurizing portions 230 and 232 .
  • the number of actuators is the number of pressure units 230 and 232, which is two in this embodiment.
  • the calculation start button 430 is a button that, when pressed by the operator, triggers the calculation unit 260 to perform calculation based on the information entered in the coil material input field 410 and the parameter input field 420 .
  • the calculation result column 440 is a column in which information on the calculation result is displayed after the calculation by the calculation unit 260 is completed.
  • the calculation unit 260 calculates, for example, the coil material amount, acceleration, pullback force, feed force (friction force), pressure force, and air pressure, and displays them in the calculation result column 440 . These will be explained later.
  • the operator inputs the information about the coil material and the information about the feeder 200 from the setting screen of FIG. 4A through the input unit 274 (input step).
  • the calculation unit 260 calculates the coil material amount, acceleration, pull-back force, feeding force (frictional force), pressurizing force, and air pressure based on the information entered in the coil material input field 410 and the parameter input field 420 of the setting screen 400.
  • Calculate (calculation step) The coil material amount is the mass (kg) per unit length of the coil material 120 , and the calculation unit 260 calculates the mass of the coil material 120 based on the information entered in the coil material input field 410 .
  • the calculation unit 260 obtains the pullback force (N) using the following formula (2).
  • the pullback force refers to the force by which the coil material 120 is pulled back toward the upstream side in the conveying direction by the weight of the loop formed upstream of the feeder 200 .
  • Retraction force Coil material amount x 9.8 (2)
  • the calculation unit 260 obtains the feed force (frictional force) (N) using the following equation (3).
  • the feeding force (frictional force) is the force when the coil material 120 is conveyed to the press device 300 by the upper feed roll 220 and the lower feed roll.
  • Feeding force (frictional force) Coil material amount x Acceleration + Retracting force (3)
  • the calculation unit 260 obtains the applied force (N) using the following formula (4).
  • the pressurizing force is the pressurizing force acting on the upper feed roll 220 .
  • Applied force feed force (frictional force) / coefficient of friction (4)
  • the calculation unit 260 obtains the air pressure (MPa) using the following formula (5).
  • the air pressure is the amount of air that needs to be set on the upstream side of the pressurizing unit 230, which is necessary for the pressurizing unit 230 to press the upper feed roll 220 with the pressurizing force obtained by Equation (4). pressure.
  • Air pressure Applied force / Actuator effective cross-sectional area x Number of actuators (5)
  • Air pressure coil material amount x (top speed/acceleration time + 9.8) / (friction coefficient x actuator effective cross-sectional area x number of actuators) (6)
  • the air pressure obtained by Equation (6) is set as a preset value before the press system starts working.
  • the calculation unit 260 transmits the air pressure obtained by the equation (6) to the control valves 250 and 252 as control signals.
  • the control valves 250 , 252 are opened in response to the received control signal to send air from the pressure source 280 to the regulators 240 , 242 .
  • the regulators 240, 242 adjust the pressure of the air input from the control valves 250, 252 so as to stabilize at the air pressure obtained by the equation (6). send.
  • the pressurizing units 230 and 232 are driven by the air pressure obtained by equation (6), and the upper feed roll 220 is pressed against the lower feed roller 210 by the pressure force obtained by equation (4). pressure process). Thereby, the upper feed roll 220 can appropriately press the coiled material 120 between itself and the lower feed roll 210 to obtain a frictional force, and feed the coiled material 120 to the press device 300 .
  • the air pressure which has conventionally been adjusted manually, can now be calculated and automatically set in the present embodiment.
  • a control method can be provided.
  • the present invention is not limited to these, and various modifications and changes are possible within the scope of the gist.
  • the structure and control of this embodiment may be applied to a leveler feeder in which a leveler and a feeder are integrated.
  • a value is input from the operation unit 270 of the feeder 200 and the air pressure is calculated by the calculation unit 260, but the present invention is not limited to this.
  • a value may be input from the input unit 318 of the press device 300 and the air pressure may be calculated by the controller 314 .
  • the pressure unit may be an electric cylinder, and the member between the calculation unit 260 and the pressure unit 230 may be replaced with a member used for controlling the electric cylinder.
  • the operator inputs the top speed and the acceleration time in the parameter input field 420 of the setting screen 400, but the present invention is not limited to this.
  • the top speed and the acceleration time may be calculated by the calculator 260 according to a predetermined formula.
  • the operator is caused to input various kinds of information described in FIG. 4, and various calculation results are displayed on the display unit, but the present invention is not limited to this.
  • the number and contents of the information to be input by the operator may be any information that can determine the air pressure.
  • the calculation result is not limited to the example of FIG. 4, as long as at least the air pressure is displayed on the display unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)

Abstract

The present invention provides a material feeding device, a pressure calculation device, and a method for controlling a material feeding device, in which a setting value for a pressure application unit for applying pressure to an upper feed roll is set automatically so as to attain a pressure suitable for a coil material. The present invention comprises: a pressure source 280 for supplying a gas or liquid; pressure application units 230, 232 for generating a pressing force by pressure of a gas or liquid supplied from the pressure source 280 and applying the pressing force to an upper feed roll 220; control valves 250, 252 for controlling a setting value set in advance for the pressure of the gas or liquid supplied from the pressure source 280, the control valves 250, 252 being provided between the pressure source 280 and the pressure application units 230, 232; an input unit 274 to which information relating to a coil material and information relating to a feeder 200 is input; and a display unit 272 in which is displayed a setting value determined on the basis of the information relating to the coil material and the information relating to the feeder 200, input through use of the input unit 274.

Description

材料送り装置、圧力演算装置及び材料送り装置の制御方法MATERIAL FEEDING DEVICE, PRESSURE COMPUTING DEVICE, AND METHOD FOR CONTROLLING MATERIAL FEEDING DEVICE
　本発明は、材料送り装置、圧力演算装置及び材料送り装置の制御方法に関する。 The present invention relates to a material feeding device, a pressure computing device, and a control method for the material feeding device.
　従来、コイル材をプレス装置に送り出す材料送り装置（以下、フィーダという）がある。フィーダは、上フィードロールと下フィードロールとを有し、上フィードロールと下フィードロールとでコイル材を挟持して搬送する。上フィードロールは、加圧部から受ける圧力によって下フィードロールに押圧されており、加圧部には例えばエアシリンダが用いられている（例えば、特許文献１参照）。エアシリンダの空気圧は、コイル材毎に手動で調整され、設定される。 Conventionally, there is a material feeding device (hereinafter referred to as a feeder) that feeds coil material to a press device. The feeder has an upper feed roll and a lower feed roll, and conveys the coil material while sandwiching it between the upper feed roll and the lower feed roll. The upper feed roll is pressed against the lower feed roll by the pressure received from the pressure section, and the pressure section uses, for example, an air cylinder (see, for example, Patent Document 1). The air pressure of the air cylinder is manually adjusted and set for each coil material.
特開２０１７－１５４１５４号公報JP 2017-154154 A
　しかしながら、最適な設定値となるように、コイル材毎に手動で空気圧を調整することは手間のかかる作業である。作業現場においては、コイル材毎に手動で調整する手間を省くために、設定可能な空気圧の中で最も高い圧力に設定し、どのようなコイル材に対してもフィードロールにおいてコイル材が滑らないようにしておく場合が多い。このような高い圧力に設定すると、上フィードロールが下フィードロールに必要以上に押圧され、フィーダの寿命が短くなるおそれがある。このため、コイル材に適した圧力となるように、上フィードロールを加圧する加圧部の設定値を自動で設定することが求められている。 However, manually adjusting the air pressure for each coil material to achieve the optimum set value is a laborious task. At the work site, in order to save the trouble of manually adjusting each coil material, the highest possible air pressure is set, and the coil material does not slip on the feed roll for any coil material. It is often the case that If the pressure is set to such a high value, the upper feed roll is pressed against the lower feed roll more than necessary, which may shorten the life of the feeder. For this reason, it is required to automatically set the set value of the pressure unit that applies pressure to the upper feed roll so that the pressure is suitable for the coil material.
　本発明は、上記の事情に鑑みてなされたもので、コイル材に適した圧力となるように、上フィードロールを加圧する加圧部の設定値を自動で設定する材料送り装置、圧力演算装置及び材料送り装置の制御方法を提供することを例示的課題とする。 SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. and to provide a control method for a material feeding device.
　上述した課題を解決するために、本発明の一態様は、以下の構成を有する。
（１）第１回転体と、前記第１回転体に当接し前記第１回転体とともにコイル材を搬送する第２回転体と、を備える材料送り装置であって、
　気体又は液体を供給する圧力源と、
　前記圧力源から供給された気体又は液体の圧力により加圧力を発生させ、前記第２回転体に前記加圧力を加える加圧部と、
　前記圧力源と前記加圧部との間に設けられ、前記圧力源から供給された気体又は液体の圧力を予め設定された設定値に制御する制御弁と、
　前記コイル材に関する情報と前記材料送り装置に関する情報とが入力される入力部と、
　前記入力部により入力された前記コイル材に関する情報と前記材料送り装置に関する情報とに基づき求められた前記設定値が表示される表示部と、
を備える材料送り装置。
（２）第１部材と、前記第１部材に当接し前記第１部材とともに材料を狭持する第２部材と、を備える機械装置の圧力演算装置であって、
　前記機械装置は、
　　気体又は液体を供給する圧力源と、
　　前記圧力源から供給された気体又は液体の圧力により加圧力を発生させ、前記第２部材に前記加圧力を加える加圧部と、
　　前記圧力源と前記加圧部との間に設けられ、前記圧力源から供給された気体又は液体の圧力を予め設定された設定値に制御する制御弁と、
を有し、
　前記材料に関する情報と前記機械装置に関する情報とに基づいて、前記設定値を演算する演算部と、
　前記材料に関する情報と前記機械装置に関する情報とが入力される入力部と、
　前記演算部による演算結果を表示する表示部と、
を備える、圧力演算装置。 In order to solve the problems described above, one aspect of the present invention has the following configuration.
(1) A material feeding device comprising a first rotating body and a second rotating body that contacts the first rotating body and conveys a coil material together with the first rotating body,
a pressure source supplying a gas or liquid;
a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second rotating body;
a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value;
an input unit for inputting information about the coil material and information about the material feeding device;
a display unit for displaying the set value obtained based on the information about the coil material and the information about the material feeding device input by the input unit;
A material feeder comprising a
(2) A pressure calculating device for a mechanical device comprising a first member and a second member that abuts against the first member and sandwiches a material together with the first member,
The mechanical device is
a pressure source supplying a gas or liquid;
a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second member;
a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value;
has
a calculation unit that calculates the setting value based on the information about the material and the information about the mechanical device;
an input unit into which information about the material and information about the mechanical device are input;
a display unit that displays the result of calculation by the calculation unit;
A pressure computing device.
　本発明の更なる目的又はその他の特徴は、以下添付図面を参照して説明される好ましい実施の形態によって明らかにされるであろう。 Further objects or other features of the present invention will be made clear by preferred embodiments described below with reference to the accompanying drawings.
　本発明の一態様によれば、コイル材に適した圧力となるように、上フィードロールを加圧する加圧部の設定値を自動で設定する材料送り装置、圧力演算装置及び材料送り装置の制御方法を提供することができる。 According to one aspect of the present invention, a material feeding device that automatically sets a set value of a pressurizing unit that presses an upper feed roll so as to obtain a pressure suitable for a coil material, a pressure calculation device, and control of the material feeding device can provide a method.
図１は、実施形態のプレスシステムの構成を示す概略正面図である。FIG. 1 is a schematic front view showing the configuration of the press system of the embodiment. 図２は、実施形態のプレス装置の構成を示す概略斜視図である。FIG. 2 is a schematic perspective view showing the configuration of the press device of the embodiment. 図３は、実施形態のフィーダの構成を示すブロック図である。FIG. 3 is a block diagram showing the configuration of the feeder of the embodiment. 図４は、実施形態の表示部に表示された設定画面であり、（ａ）作業者による入力前の設定画面を示す図、（ｂ）作業者による入力後の設定画面を示す図である。FIG. 4 shows setting screens displayed on the display unit of the embodiment, (a) showing the setting screen before input by the operator, and (b) showing the setting screen after input by the operator.
　［実施形態］
　（プレスシステム）
　図１は、本実施形態のプレスシステムの構成を示す概略正面図である。図１には搬送方向及び上流、下流も示す。本実施形態のプレスシステムは、アンコイラ１００、フィーダ２００、プレス装置３００を備えている。アンコイラ１００及びフィーダ２００は、プレス装置３００の加工動作に連動して動作する。なお、アンコイラ１００とフィーダ２００との間に、コイル材の巻き癖を矯正する矯正装置であるレベラが配置されてもよく、さらに、レベラとフィーダ２００との間にコイル材の撓み（ループ）を制御するループテーブルが配置されていてもよい。 [Embodiment]
(press system)
FIG. 1 is a schematic front view showing the configuration of the press system of this embodiment. The conveying direction and upstream and downstream are also shown in FIG. The press system of this embodiment includes an uncoiler 100 , a feeder 200 and a press device 300 . The uncoiler 100 and feeder 200 operate in conjunction with the processing operation of the press device 300 . A leveler, which is a correction device for correcting the curl of the coil material, may be arranged between the uncoiler 100 and the feeder 200, and furthermore, between the leveler and the feeder 200, the bending (loop) of the coil material may be corrected. A controlling loop table may be arranged.
　（アンコイラ）
　コイル材を保持する保持装置であるアンコイラ１００は、マンドレル１１０、制御部１３０、駆動部１４０を有している。マンドレル１１０には、プレス装置３００の加工の対象物（材料）であるコイル材１２０が保持されている。例えば、コイル状に巻かれたコイル材１２０の内径がマンドレル１１０によって保持される。制御部１３０は、プレス装置３００による加工動作と連動するように、駆動部１４０によってマンドレル１１０を回転させ、コイル材１２０の巻きほぐしを行う。 (uncoiler)
The uncoiler 100, which is a holding device for holding the coil material, has a mandrel 110, a control section 130, and a driving section 140. As shown in FIG. The mandrel 110 holds a coil material 120 that is an object (material) to be processed by the press device 300 . For example, the inside diameter of the coiled material 120 is held by the mandrel 110 . The control unit 130 causes the driving unit 140 to rotate the mandrel 110 and unwind the coil material 120 so as to be interlocked with the processing operation by the press device 300 .
　（プレス装置）
　図１のプレス装置３００について、図２を用いて説明する。図２は、本実施形態のプレス装置３００の構成を示す概略斜視図であり、例えば、一体型ストレートサイドフレーム型又はＣフレーム型のプレス装置３００の概略図である。また、プレス装置３００は、例えば、複数のステージで複数の加工を行う順送プレス加工（順送加工）を行う装置である。図２には、コイル材１２０の搬送方向や搬送方向における上流（左）、下流（右）、上下方向、及び前後方向（正面、背面）を示している。プレス装置３００は、筐体３０２の内外に、駆動モータ３０４、伝達機構３０６、クランク軸３０８、コンロッド３１０、スライド３１２、ボルスタ３２２を有して構成される。また、プレス装置３００は、コントローラ３１４、記憶部３１５、表示部３１６、入力部３１８、を有している。さらに、プレス装置３００は、センサ３２４、ロータリーエンコーダ３２５、ギブ３２６を有している。なお、順送加工はトランスファー・スタンピングともいい、それを構成するトランスファー・プレス・ツールは、それ自体で単一のプレス・ダイ（上型と下型）にすることも、連続したステーションに配置された複数のプレス・ダイにすることもできる。 (Press device)
The press device 300 in FIG. 1 will be described with reference to FIG. FIG. 2 is a schematic perspective view showing the configuration of the press device 300 of the present embodiment, for example, a schematic view of the integrated straight side frame type or C frame type press device 300. As shown in FIG. Also, the press device 300 is, for example, a device that performs progressive press processing (progressive processing) in which multiple processes are performed on multiple stages. FIG. 2 shows the conveying direction of the coil material 120, the upstream (left), the downstream (right) in the conveying direction, the vertical direction, and the front and rear directions (front and rear). The press device 300 includes a drive motor 304 , a transmission mechanism 306 , a crankshaft 308 , a connecting rod 310 , a slide 312 and a bolster 322 inside and outside a housing 302 . The press device 300 also has a controller 314 , a storage section 315 , a display section 316 and an input section 318 . Furthermore, the press device 300 has a sensor 324 , a rotary encoder 325 and a gib 326 . Progressive processing is also called transfer stamping, and the transfer press tool that constitutes it can be a single press die (upper and lower dies) by itself, or can be arranged in a continuous station. There can also be multiple press dies.
　駆動モータ３０４は、例えばサーボ制御されるサーボモータであり、回転量及び回転方向を制御しつつ伝達機構３０６、クランク軸３０８、コンロッド３１０を介して後述する金型３０３を上下移動させるものである。伝達機構３０６は、例えばギヤやベルト等の伝達部材を有して構成され、駆動モータ３０４のモータ軸の回転をクランク軸３０８へと伝達するものである。駆動モータ３０４への制御信号はコントローラ３１４から送られるようになっている。 The drive motor 304 is, for example, a servo-controlled servomotor, which vertically moves the mold 303 to be described later via a transmission mechanism 306, a crankshaft 308, and a connecting rod 310 while controlling the amount and direction of rotation. The transmission mechanism 306 includes transmission members such as gears and belts, and transmits the rotation of the motor shaft of the drive motor 304 to the crankshaft 308 . Control signals to drive motor 304 are sent from controller 314 .
　クランク軸３０８及びコンロッド３１０は、伝達機構３０６により伝達されたモータ軸の回転移動を往復移動（本実施形態では、上下移動。）に変換するためのものである。モータ軸の回転によりクランク軸３０８が回転し、クランク軸３０８に一端近傍が連結されたコンロッド３１０にその回転が伝達されてコンロッド３１０が上下移動（昇降移動）するようになっている。 The crankshaft 308 and connecting rod 310 are for converting the rotational movement of the motor shaft transmitted by the transmission mechanism 306 into reciprocating movement (vertical movement in this embodiment). The rotation of the motor shaft causes the crankshaft 308 to rotate, and the rotation is transmitted to a connecting rod 310 having one end connected to the crankshaft 308 to move the connecting rod 310 up and down.
　また、クランク軸３０８には、クランク軸３０８の回転に連動して、オン信号又はオフ信号を出力するロータリーカムスイッチ（不図示）が設けられている。ロータリーカムスイッチは、例えばクランク軸３０８の回転が所定の角度となったとき、言い換えれば加工動作中の所定のタイミングとなったときに、オン信号又はオフ信号を出力する。ロータリーカムスイッチがオン信号（又はオフ信号）を出力するタイミングを、以下、出力タイミングという。コントローラ３１４は、ロータリーカムスイッチから出力される信号に基づいて、アンコイラ１００及びフィーダ２００と連動し、加工動作を行っている。 Also, the crankshaft 308 is provided with a rotary cam switch (not shown) that outputs an ON signal or an OFF signal in conjunction with the rotation of the crankshaft 308 . The rotary cam switch outputs an ON signal or an OFF signal when, for example, the rotation of the crankshaft 308 reaches a predetermined angle, in other words, when it reaches a predetermined timing during machining operation. The timing at which the rotary cam switch outputs the ON signal (or OFF signal) is hereinafter referred to as output timing. The controller 314 interlocks with the uncoiler 100 and the feeder 200 based on the signal output from the rotary cam switch to perform machining operations.
　コンロッド３１０の他端近傍にはスライド３１２が連結されている。コンロッド３１０の上下移動に伴いスライド３１２がギブ３２６に沿って上下移動するようになっている。プレス装置３００においては、スライド３１２と対向するようにボルスタ３２２が配置されている。スライド３１２のボルスタ３２２と対向する側の面（本実施形態では下面。）に金型３０３の一部としての上型３０３ａが装着される。ボルスタ３２２のスライド３１２と対向する側の面（本実施形態では上面。）に金型３０３の一部として、上型３０３ａと対になる下型３０３ｂが装着される。 A slide 312 is connected near the other end of the connecting rod 310 . As the connecting rod 310 moves up and down, the slide 312 moves up and down along the gib 326 . A bolster 322 is arranged to face the slide 312 in the press device 300 . An upper mold 303 a as a part of the mold 303 is attached to the surface of the slide 312 facing the bolster 322 (lower surface in this embodiment). A lower mold 303b that forms a pair with an upper mold 303a is mounted as a part of the mold 303 on the surface (upper surface in this embodiment) of the bolster 322 facing the slide 312 .
　上型３０３ａと下型３０３ｂとの間に加工の対象物としてのコイル材１２０を配置し、上型３０３ａと下型３０３ｂとで押圧することにより、プレス装置３００によるコイル材１２０に対するプレス加工が行われる。コイル材１２０は、例えば図２中左（上流）側から右（下流）側に搬送され、以降、コイル材１２０の搬送方向を左右方向ともいう。複数工程を有するプレス加工（例えば順送式の加工）においては、コイル材１２０の搬送方向における上流から序盤の加工が行われ、コイル材１２０の搬送方向における下流で終盤の加工が行われる。 The coil material 120 as an object to be processed is placed between the upper die 303a and the lower die 303b, and pressed by the upper die 303a and the lower die 303b. will be The coil material 120 is conveyed, for example, from the left (upstream) side to the right (downstream) side in FIG. In press working having multiple steps (for example, progressive processing), processing is performed from the upstream side in the conveying direction of the coil material 120 to the early stage, and processing is performed in the downstream side in the conveying direction of the coil material 120 in the final stage.
　詳しくは、コントローラ３１４により制御されて駆動モータ３０４が回転する。駆動モータ３０４の回転が伝達機構３０６、クランク軸３０８を介してコンロッド３１０へと伝達され、スライド３１２が上下移動する。スライド３１２の下方移動によって上型３０３ａと下型３０３ｂとが押圧され、コイル材１２０のプレス加工が行われる。すなわち、プレス装置３００において、駆動モータ３０４、伝達機構３０６、クランク軸３０８、コンロッド３１０、スライド３１２がプレス部を構成する。伝達機構３０６には、クランク軸３０８の回転数を検知するための回転数検知手段であるロータリーエンコーダ３２５が設けられている。コントローラ３１４は、ロータリーエンコーダ３２５によりクランク軸の回転数を検知することで、スライド３１２の位置を検知することが可能である。 Specifically, the drive motor 304 rotates under the control of the controller 314 . Rotation of the drive motor 304 is transmitted to the connecting rod 310 via the transmission mechanism 306 and the crankshaft 308, and the slide 312 moves up and down. As the slide 312 moves downward, the upper mold 303a and the lower mold 303b are pressed, and the coil material 120 is pressed. That is, in the press device 300, the drive motor 304, the transmission mechanism 306, the crankshaft 308, the connecting rod 310, and the slide 312 constitute a press section. The transmission mechanism 306 is provided with a rotary encoder 325 which is rotation speed detection means for detecting the rotation speed of the crankshaft 308 . The controller 314 can detect the position of the slide 312 by detecting the rotation speed of the crankshaft with the rotary encoder 325 .
　加工の際の荷重を検知する荷重検知手段であるセンサ３２４は、プレス装置３００がコイル材１２０にプレス加工を行う際に、コンロッド３１０に働く荷重を検知するためのセンサで、例えばロードセルである。センサ３２４は、例えば、筐体３０２に設置された歪ゲージであってもよい。センサ３２４は、コンロッド３１０のいずれかの位置（例えば、中央近傍位置）に設置されていてもよい。さらに、センサ３２４は複数設置されていてもよく、例えば筐体３０２の左右の歪をそれぞれ検知し、検知した結果を加算してトータルの荷重としてもよい。なお、図２において、表示部３１６が配置されている側がプレス装置３００の前側である。 The sensor 324, which is load detection means for detecting the load during processing, is a sensor for detecting the load acting on the connecting rod 310 when the press device 300 presses the coil material 120, and is, for example, a load cell. Sensors 324 may be, for example, strain gauges mounted on housing 302 . Sensor 324 may be installed at any position on connecting rod 310 (for example, near the center). Furthermore, a plurality of sensors 324 may be installed. For example, the strain on the left and right sides of the housing 302 may be detected, and the detected results may be added to obtain the total load. 2, the side where the display unit 316 is arranged is the front side of the press device 300. As shown in FIG.
　コントローラ３１４は、記憶部３１５に記憶されている各種プログラムに従ってプレス装置３００を制御する。表示部３１６は、プレス装置３００の状態を示すデータを表示する。入力部３１８は、プレス装置３００を操作するために必要なデータを入力するために用いられる。入力部３１８は、コイル材１２０を搬送する長さ（以下、送り長さという）等を、ユーザーが入力する際に用いられる。なお、送り長さは例えば加工ステージの搬送方向における長さである。コントローラ３１４は、フィーダ２００とプレス装置３００とが連動して加工を行うように制御している。順送加工を行うプレス装置３００では、コントローラ３１４は、１つの加工ステージでの加工が終了すると、フィーダ２００によりコイル材１２０を次の加工ステージに所定の送り速度で所定の送り長さだけ搬送するように制御する。 The controller 314 controls the press device 300 according to various programs stored in the storage unit 315. A display unit 316 displays data indicating the state of the press device 300 . The input section 318 is used to input data necessary for operating the press device 300 . The input unit 318 is used when the user inputs the length of conveying the coil material 120 (hereinafter referred to as the feeding length). The feed length is, for example, the length of the processing stage in the transport direction. The controller 314 controls so that the feeder 200 and the press device 300 work in conjunction with each other. In the press machine 300 that performs progressive processing, when the processing in one processing stage is completed, the controller 314 causes the feeder 200 to convey the coil material 120 to the next processing stage at a predetermined feed rate by a predetermined feed length. to control.
　（フィーダ）
　フィーダ２００は、アンコイラ１００に保持されたコイル材１２０をプレス装置３００に送る材料送り装置（機械装置）である。図３は、実施形態のフィーダの構成を示すブロック図であり、上フィードロール及び下フィードロールの下には前後方向も示している。以下、図３も参照しながら説明する。 (feeder)
The feeder 200 is a material feeding device (mechanical device) that feeds the coil material 120 held by the uncoiler 100 to the press device 300 . FIG. 3 is a block diagram showing the configuration of the feeder of the embodiment, and also shows the front-rear direction below the upper feed roll and the lower feed roll. Hereinafter, description will be made with reference to FIG. 3 as well.
　フィーダ２００は、下フィードロール２１０、上フィードロール２２０、加圧部２３０、２３２、レギュレータ２４０、２４２、制御弁２５０、２５２を有している。フィーダ２００は、演算部２６０、操作部２７０、表示部２７２、入力部２７４、圧力源２８０、制御部２９０、記憶部２９２、駆動部２９４を有している。 The feeder 200 has a lower feed roll 210, an upper feed roll 220, pressure sections 230, 232, regulators 240, 242, and control valves 250, 252. The feeder 200 has a calculation section 260 , an operation section 270 , a display section 272 , an input section 274 , a pressure source 280 , a control section 290 , a storage section 292 and a drive section 294 .
　第１回転体（第１部材）である下フィードロール２１０は、フィーダ２００の固定フレーム（不図示）に回転可能に取り付けられている。第２回転体（第２部材）である上フィードロール２２０は、加圧部２３０、２３２から加えられる加圧力に応じて下フィードロール２１０への押圧の度合いが調整できる範囲で、上下方向に移動可能、かつ回転可能なように取り付けられている。 A lower feed roll 210, which is a first rotating body (first member), is rotatably attached to a fixed frame (not shown) of the feeder 200. The upper feed roll 220, which is a second rotating body (second member), moves vertically within a range in which the degree of pressure applied to the lower feed roll 210 can be adjusted according to the pressure applied from the pressure units 230 and 232. possible and rotatable.
　駆動部２９４は、下フィードロール２１０を回転させる。下フィードロール２１０の回転はギヤ等（不図示）の伝達手段によって上フィードロール２２０に伝達される。これにより、下フィードロール２１０及び上フィードロール２２０は、コイル材１２０を所定の送り長さでプレス装置３００に送り出す。駆動部２９４の制御は公知の制御方法によって制御部２９０により制御されている。 The driving section 294 rotates the lower feed roll 210 . The rotation of the lower feed roll 210 is transmitted to the upper feed roll 220 by transmission means such as gears (not shown). As a result, the lower feed roll 210 and the upper feed roll 220 feed the coil material 120 to the press device 300 at a predetermined feed length. Control of the driving section 294 is controlled by the control section 290 by a known control method.
　第１加圧部である加圧部２３０は、上フィードロール２２０の一方の端部、例えば前側の端部に、演算部２６０で算出された加圧力を加える。第２加圧部である加圧部２３２は、上フィードロール２２０の他方の端部、例えば後側の端部に、演算部２６０で算出された加圧力を加える。加圧部２３０、２３２は、制御弁２５０、２５２によって流量が調整されて圧力源２８０から供給された気体（空気その他の気体）や液体（油その他の液体）等の流量に応じた圧力を発生させる。加圧部２３０、２３２は、例えば空気ばねや単動シリンダである。 The pressure unit 230, which is the first pressure unit, applies pressure calculated by the calculation unit 260 to one end of the upper feed roll 220, for example, the front end. The pressure unit 232 , which is the second pressure unit, applies the pressure calculated by the calculation unit 260 to the other end of the upper feed roll 220 , for example, the rear end. The pressurizing units 230 and 232 generate pressure corresponding to the flow rate of gas (air or other gas) or liquid (oil or other liquid) supplied from the pressure source 280 with the flow rate adjusted by the control valves 250 and 252. Let The pressurizing units 230 and 232 are, for example, air springs or single-acting cylinders.
　制御弁２５０、２５２は、圧力源２８０から加圧部２３０、２３２に供給される気体や液体等の流量を制御する。制御弁２５０は圧力源２８０から加圧部２３０に供給される気体や液体の流量を制御し、制御弁２５２は圧力源２８０から加圧部２３２に供給される気体や液体の流量を制御する。制御弁２５０、２５２は、全開の状態と全閉の状態との間で演算部２６０により制御可能に構成されている。制御弁２５０、２５２は、例えば比例圧力制御弁である。 The control valves 250 and 252 control the flow rates of gases, liquids, etc. supplied from the pressure source 280 to the pressurizing units 230 and 232 . The control valve 250 controls the flow rate of gas or liquid supplied from the pressure source 280 to the pressurizing section 230 , and the control valve 252 controls the flow rate of gas or liquid supplied from the pressure source 280 to the pressurizing section 232 . The control valves 250 and 252 are configured to be controllable between a fully open state and a fully closed state by the computing section 260 . Control valves 250, 252 are, for example, proportional pressure control valves.
　レギュレータ２４０、２４２は、制御弁２５０、２５２と加圧部２３０、２３２との間に設けられ、加圧部２３０、２３２に安定した圧力の気体又は液体を送るための調整部である。レギュレータ２４０は制御弁２５０と加圧部２３０との間に設けられ、レギュレータ２４２は制御弁２５２と加圧部２３２との間に設けられている。レギュレータ２４０、２４２は、例えばパイロット式の減圧弁である。レギュレータ２４０、２４２を設けている理由は、次のとおりである。 The regulators 240, 242 are provided between the control valves 250, 252 and the pressurizing units 230, 232, and are adjusting units for sending gas or liquid with stable pressure to the pressurizing units 230, 232. Regulator 240 is provided between control valve 250 and pressurizing section 230 , and regulator 242 is provided between control valve 252 and pressurizing section 232 . Regulators 240 and 242 are, for example, pilot pressure reducing valves. The reason for providing the regulators 240 and 242 is as follows.
　制御弁２５０、２５２が比例減圧弁である場合、リリース動作を行う場合に、比例減圧弁の２次側（エアの出力側）の圧力の変動が大きいと、比例減圧弁内部の駆動部の動作回数が多くなり、寿命が短くなるおそれがある。このため、制御弁２５０、２５２における圧力の変動を安定させるためにレギュレータ２４０、２４２が設けられている。ここで、リリース動作とは、上フィードロール２２０を下フィードロール２１０から離間させる動作である。なお、レギュレータ２４０、２４２は、パイロット式の減圧弁に限定されず、例えば方向切替弁でもよいし、ストップバルブ（Ｇｌｏｂｅ　Ｖａｌｖｅ）等でアクチュエータ側の圧力を保持するようにしてもよい。 When the control valves 250 and 252 are proportional pressure reducing valves, if the pressure on the secondary side (air output side) of the proportional pressure reducing valves fluctuates greatly during the release operation, the drive section inside the proportional pressure reducing valves will operate. The number of times will increase, and there is a possibility that the life will be shortened. Therefore, regulators 240 and 242 are provided to stabilize pressure fluctuations in the control valves 250 and 252 . Here, the release operation is an operation for separating the upper feed roll 220 from the lower feed roll 210 . The regulators 240 and 242 are not limited to pilot-type pressure reducing valves, and may be, for example, directional switching valves, stop valves (Globe Valves), or the like to hold the pressure on the actuator side.
　演算部２６０は、操作部２７０を介して入力されたパラメータに基づいて、加圧部２３０が上フィードロール２２０を加圧する際の加圧力を演算する。演算部２６０は、例えば、コイル材１２０の板厚、板幅、長さ、比重等や、コイル材１２０を搬送する際の加速度、コイル材１２０と上フィードロール２２０及び下フィードロールの当接部（ニップ部）における摩擦係数等に基づいて、上フィードロール２２０を押圧する際の加圧力を演算する。これにより、本実施形態では、コイル材１２０毎に加圧部２３０、２３２で発生させる加圧力に応じた気体又は液体の圧力の設定値を手動で設定することなく、自動で設定することができる。演算部２６０は、例えばＰＬＣ（Ｐｒｏｇｒａｍｍａｂｌｅ　Ｌｏｇｉｃ　Ｃｏｎｔｒｏｌｌｅｒ）等であり、ＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）（いずれも不図示）を有し、ＣＰＵがＲＯＭに記憶されたプログラムに従い、ＲＡＭを作業領域として使用しながら演算を行う。 The calculation unit 260 calculates the pressing force when the pressing unit 230 presses the upper feed roll 220 based on parameters input via the operation unit 270 . The calculation unit 260 calculates, for example, the plate thickness, plate width, length, specific gravity, etc. of the coil material 120, the acceleration when the coil material 120 is conveyed, and the contact portions between the coil material 120 and the upper feed roll 220 and the lower feed roll. The pressure applied when pressing the upper feed roll 220 is calculated based on the coefficient of friction at (the nip portion) and the like. As a result, in the present embodiment, the set value of the gas or liquid pressure corresponding to the pressurizing force generated by the pressurizing units 230 and 232 for each coil material 120 can be automatically set without manually setting. . The computing unit 260 is, for example, a PLC (Programmable Logic Controller) or the like, and has a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory) (all not shown). Computation is performed using the RAM as a work area according to the stored program.
　操作部２７０は、フィーダ２００の種々の情報を表示し作業者に提示する表示部２７２と、作業者からの種々の情報の入力を受け付ける入力部２７４と、を有している。例えば作業者は、表示部２７２に表示された設定画面を見ながら、入力部２７４を操作することで演算部２６０による演算に必要なパラメータ等を入力する。表示部２７２は、例えば液晶ディスプレイ等公知の表示手段でよい。入力部２７４は、例えば表示部２７２上に実現されたタッチパネルや、キーボード、テンキー等公知の入力手段でよい。後述する図４では、表示部２７２はタッチパネルであり入力部２７４でもあるものとする。なお、演算部２６０、表示部２７２、入力部２７４は、圧力演算装置としても機能する。 The operation unit 270 has a display unit 272 that displays various information of the feeder 200 and presents it to the operator, and an input unit 274 that accepts input of various information from the operator. For example, the operator operates the input unit 274 while looking at the setting screen displayed on the display unit 272 to input the parameters required for the calculation by the calculation unit 260 . The display unit 272 may be a known display means such as a liquid crystal display. The input unit 274 may be, for example, a known input means such as a touch panel realized on the display unit 272, a keyboard, or a numeric keypad. In FIG. 4, which will be described later, the display unit 272 is assumed to be a touch panel and an input unit 274 as well. Note that the calculation unit 260, the display unit 272, and the input unit 274 also function as a pressure calculation device.
　圧力源２８０は、加圧部２３０、２３２によって加圧力を発生させるための気体、液体等を供給する源であり、加圧部２３０、２３２が空気ばねの場合はエア圧力源である。例えば圧力源２８０は、空気等の気体や油等の液体が充填されたタンク等である。以下の説明では、圧力源２８０には空気（エア）が充填されているものとし、演算部２６０が求める設定値はエアの圧力（以下、エア圧力という）とする。 The pressure source 280 is a source for supplying gas, liquid, or the like for generating pressurization force by the pressurizing portions 230 and 232, and is an air pressure source when the pressurizing portions 230 and 232 are air springs. For example, the pressure source 280 is a tank or the like filled with a gas such as air or a liquid such as oil. In the following description, it is assumed that the pressure source 280 is filled with air, and the setting value obtained by the calculation section 260 is the air pressure (hereinafter referred to as air pressure).
　制御部２９０は、プレス装置３００のコントローラ３１４と協働してフィーダ２００を制御する。制御部２９０は、例えばＣＰＵ、ＲＡＭ、ＲＯＭ（いずれも不図示）を有し、ＣＰＵがＲＯＭに記憶されたプログラムに従い、ＲＡＭを作業領域として使用しながらフィーダ２００を制御する。なお、プレス装置３００による加工中のフィーダ２００の動作は公知であり、説明を省略する。 The control unit 290 controls the feeder 200 in cooperation with the controller 314 of the press device 300. The control unit 290 has, for example, a CPU, RAM, and ROM (none of which are shown), and the CPU controls the feeder 200 according to a program stored in the ROM, using the RAM as a work area. Note that the operation of the feeder 200 during processing by the press device 300 is well known and will not be described.
　（設定画面）
　図４は、表示部２７２に表示された設定画面であり、（ａ）は作業者による入力前の設定画面を示し、（ｂ）は作業者による入力後の設定画面を示す。なお、図４（ｂ）の数値は説明を簡易にするための値であり、実際の値を示すものではない。 (Setting screen)
4A and 4B show setting screens displayed on the display unit 272. FIG. 4A shows the setting screen before input by the operator, and FIG. 4B shows the setting screen after input by the operator. Note that the numerical values in FIG. 4B are values for simplifying the explanation, and do not represent actual values.
　プレス装置３００においてコイル材１２０への加工が開始される前に、制御部２９０は、演算部２６０がエア圧力を演算する際に必要な情報の入力を作業者に促すために、図４（ａ）の設定画面４００を表示部２７２に表示させる。 Before the press device 300 starts processing the coil material 120, the control unit 290 prompts the operator to input necessary information when the calculation unit 260 calculates the air pressure. ) is displayed on the display unit 272 .
　設定画面４００には、上フィードロール２２０を加圧するための加圧部２３０、２３２のエア圧力を設定する画面であることを示す情報「フィードロール加圧用　エア圧力設定画面」の他、コイル材入力欄４１０、パラメータ入力欄４２０、計算開始ボタン４３０が表示される。また、設定画面４００には、演算部２６０による演算結果が表示される計算結果欄４４０も表示される。さらに、設定画面４００には、作業者からの入力を受け付ける入力キー群４５０も表示される。 In the setting screen 400, in addition to the information "feed roll pressurization air pressure setting screen" indicating that it is a screen for setting the air pressure of the pressurizing units 230 and 232 for pressurizing the upper feed roll 220, a coil material input A field 410, a parameter input field 420, and a calculation start button 430 are displayed. The setting screen 400 also displays a calculation result column 440 in which the calculation result by the calculation unit 260 is displayed. Further, the setting screen 400 also displays an input key group 450 for receiving input from the operator.
　コイル材入力欄４１０は、コイル材１２０に関する情報が入力される欄である。上フィードロール２２０の加圧力はコイル材１２０に応じて設定されるからである。本実施形態では、コイル材に関する情報には、例えばコイル材１２０の板厚、板幅、ループ長さ、比重の情報が含まれる。 The coil material input field 410 is a field in which information about the coil material 120 is input. This is because the pressing force of the upper feed roll 220 is set according to the coil material 120 . In this embodiment, the information about the coil material includes, for example, the thickness, width, loop length, and specific gravity of the coil material 120 .
　コイル材１２０の板厚（ｍｍ）は、コイル材１２０の厚さであり、コイル材１２０の図１の上下方向の長さである。コイル材１２０の板幅（ｍｍ）は、コイル材１２０の幅であり、コイル材１２０の搬送方向に略直交する方向、すなわち図２の前後方向の長さである。ループ長さ（ｍｍ）は、フィーダ２００の上流側において形成されるコイル材１２０の下方への撓みの部分（以下、ループという）の長さである。比重は、コイル材１２０の比重である。 The plate thickness (mm) of the coil material 120 is the thickness of the coil material 120 and the length of the coil material 120 in the vertical direction in FIG. The plate width (mm) of the coil material 120 is the width of the coil material 120 and the length of the coil material 120 in the direction substantially orthogonal to the conveying direction, that is, the front-rear direction in FIG. The loop length (mm) is the length of the portion of the coiled material 120 formed on the upstream side of the feeder 200 that bends downward (hereinafter referred to as a loop). The specific gravity is the specific gravity of the coil material 120 .
　なお、本実施形態では、コイル材１２０に関する情報を作業者により入力させているが、これに限定されない。例えば、コイル材１２０の型番とコイル材１２０に関する情報（板厚、板幅、比重等）とが関連付けられてデータベース化されサーバ等の記憶部に記憶されている構成で、データベースから必要な情報が読み出される構成でもよい。 It should be noted that in the present embodiment, the operator inputs information about the coil material 120, but the present invention is not limited to this. For example, the model number of the coil material 120 and information about the coil material 120 (thickness, width, specific gravity, etc.) are associated with each other and stored in a database, such as a storage unit such as a server. The configuration may be read out.
　パラメータ入力欄４２０は、コイル材入力欄４１０において入力された情報の他に、エア圧力を求めるために必要なパラメータが入力される。パラメータ入力欄４２０には、例えば、フィーダ２００に関する情報が入力される。本実施形態では、フィーダ２００に関する情報には、例えば、摩擦係数、トップスピード、加速時間、アクチュエータ有効断面積、アクチュエータ数の情報が含まれる。 In the parameter input field 420, in addition to the information input in the coil material input field 410, parameters necessary for obtaining the air pressure are input. For example, information about the feeder 200 is input to the parameter input field 420 . In this embodiment, the information about the feeder 200 includes, for example, friction coefficient, top speed, acceleration time, actuator effective cross-sectional area, and number of actuators.
　摩擦係数は、上フィードロール２２０及び下フィードロール２１０とコイル材１２０との間の摩擦係数である。トップスピード（メートル毎秒（ｍ／ｓｅｃまたはｍ／ｓ））は、フィーダ２００がプレス装置３００に１分間に送り出すコイル材１２０の長さのうち、最大の長さ（以下、最大の送り長さという）であり、単位をメートル毎秒としたものである。加速時間（ｍｓｅｃ）は、フィーダ２００がコイル材１２０を送り出す速度が、最大の送り長さを１分間に送り出す速度に到達するまでに要する時間、すなわちトップスピードに到達するまでに要する時間である。トップスピード及び加速時間は、プレス装置３００の回転数に応じたスピードでもある。アクチュエータ有効断面積は、加圧部２３０、２３２の有効断面積（ｍ２）である。アクチュエータ数は、加圧部２３０、２３２の個数であり、本実施形態では２個としている。 The coefficient of friction is the coefficient of friction between the coil material 120 and the upper feed roll 220 and the lower feed roll 210 . The top speed (meters per second (m/sec or m/s)) is the maximum length of the length of the coil material 120 that the feeder 200 feeds to the press device 300 in one minute (hereinafter referred to as the maximum feed length). ) in units of meters per second. The acceleration time (msec) is the time required for the feeder 200 to feed the coiled material 120 at the maximum feed length per minute, that is, the time required to reach the top speed. The top speed and acceleration time are also speeds according to the rotation speed of the press device 300 . The actuator effective cross-sectional area is the effective cross-sectional area (m 2 ) of the pressurizing portions 230 and 232 . The number of actuators is the number of pressure units 230 and 232, which is two in this embodiment.
　計算開始ボタン４３０は、作業者によって押下されることで、演算部２６０がコイル材入力欄４１０及びパラメータ入力欄４２０に入力された情報に基づく演算を行うトリガとなるボタンである。 The calculation start button 430 is a button that, when pressed by the operator, triggers the calculation unit 260 to perform calculation based on the information entered in the coil material input field 410 and the parameter input field 420 .
　計算結果欄４４０は、演算部２６０による演算が終了した後、演算結果の情報が表示される欄である。本実施形態では、演算部２６０は、例えば、コイル材質量、加速度、引き戻し力、送り力（摩擦力）、加圧力、エア圧力を演算し、計算結果欄４４０に表示させる。これらについては、以降説明する。 The calculation result column 440 is a column in which information on the calculation result is displayed after the calculation by the calculation unit 260 is completed. In this embodiment, the calculation unit 260 calculates, for example, the coil material amount, acceleration, pullback force, feed force (friction force), pressure force, and air pressure, and displays them in the calculation result column 440 . These will be explained later.
　（演算部による演算）
　作業者は、上述した図４（ａ）の設定画面からコイル材に関する情報とフィーダ２００に関する情報とを入力部２７４を介して入力する（入力工程）。演算部２６０は、設定画面４００のコイル材入力欄４１０及びパラメータ入力欄４２０により入力された情報に基づいて、コイル材質量、加速度、引き戻し力、送り力（摩擦力）、加圧力、エア圧力を演算する（演算工程）。コイル材質量は、コイル材１２０の単位長さ当たりの質量（ｋｇ）であり、演算部２６０は、コイル材入力欄４１０に入力された情報に基づき、コイル材１２０の質量を演算する。 (Calculation by calculation unit)
The operator inputs the information about the coil material and the information about the feeder 200 from the setting screen of FIG. 4A through the input unit 274 (input step). The calculation unit 260 calculates the coil material amount, acceleration, pull-back force, feeding force (frictional force), pressurizing force, and air pressure based on the information entered in the coil material input field 410 and the parameter input field 420 of the setting screen 400. Calculate (calculation step). The coil material amount is the mass (kg) per unit length of the coil material 120 , and the calculation unit 260 calculates the mass of the coil material 120 based on the information entered in the coil material input field 410 .
　演算部２６０は、次の式（１）を用いて加速度（ｍ／ｓ２）を求める。
　　　加速度＝トップスピード／加速時間　　　（１） The calculation unit 260 obtains the acceleration (m/s 2 ) using the following formula (1).
Acceleration = top speed / acceleration time (1)
　演算部２６０は、次の式（２）を用いて引き戻し力（Ｎ）を求める。ここで、引き戻し力とは、フィーダ２００の上流に形成されているループの自重により、コイル材１２０が搬送方向の上流側に引き戻される力をいう。
　　　引き戻し力＝コイル材質量×９．８　　　（２） The calculation unit 260 obtains the pullback force (N) using the following formula (2). Here, the pullback force refers to the force by which the coil material 120 is pulled back toward the upstream side in the conveying direction by the weight of the loop formed upstream of the feeder 200 .
Retraction force = Coil material amount x 9.8 (2)
　演算部２６０は、次の式（３）を用いて送り力（摩擦力）（Ｎ）を求める。ここで、送り力（摩擦力）とは、上フィードロール２２０及び下フィードロールによりコイル材１２０をプレス装置３００に搬送するときの力である。
　　　送り力（摩擦力）＝コイル材質量×加速度＋引き戻し力　　　（３） The calculation unit 260 obtains the feed force (frictional force) (N) using the following equation (3). Here, the feeding force (frictional force) is the force when the coil material 120 is conveyed to the press device 300 by the upper feed roll 220 and the lower feed roll.
Feeding force (frictional force) = Coil material amount x Acceleration + Retracting force (3)
　演算部２６０は、次の式（４）を用いて加圧力（Ｎ）を求める。ここで、加圧力は、上フィードロール２２０に作用する加圧力である。
　　　加圧力＝送り力（摩擦力）／摩擦係数　　　（４） The calculation unit 260 obtains the applied force (N) using the following formula (4). Here, the pressurizing force is the pressurizing force acting on the upper feed roll 220 .
Applied force = feed force (frictional force) / coefficient of friction (4)
　演算部２６０は、次の式（５）を用いてエア圧力（ＭＰａ）を求める。ここで、エア圧力とは、加圧部２３０が式（４）で求めた加圧力で上フィードロール２２０を押圧するために必要な、加圧部２３０よりも上流側で設定が必要な空気の圧力である。
　　　エア圧力＝加圧力／アクチュエータ有効断面積×アクチュエータ数　　　（５） The calculation unit 260 obtains the air pressure (MPa) using the following formula (5). Here, the air pressure is the amount of air that needs to be set on the upstream side of the pressurizing unit 230, which is necessary for the pressurizing unit 230 to press the upper feed roll 220 with the pressurizing force obtained by Equation (4). pressure.
Air pressure = Applied force / Actuator effective cross-sectional area x Number of actuators (5)
　式（５）は、式（１）～式（４）を用いて、次の式（６）のように表される。
　　エア圧力＝コイル材質量×（トップスピード／加速時間＋９．８）
　　　　　　／（摩擦係数×アクチュエータ有効断面積×アクチュエータ数）　（６） Formula (5) is expressed as the following formula (6) using formulas (1) to (4).
Air pressure = coil material amount x (top speed/acceleration time + 9.8)
/ (friction coefficient x actuator effective cross-sectional area x number of actuators) (6)
　（演算結果であるエア圧力に基づく加圧力の制御）
　式（６）によって求められたエア圧力は、プレスシステムによって加工が開始される前に予め設定値として設定される。具体的には、演算部２６０が、式（６）により得られたエア圧力を制御弁２５０、２５２に制御信号として送信する。制御弁２５０、２５２は、受信した制御信号に応じた開状態となり、圧力源２８０のエアをレギュレータ２４０、２４２に送る。レギュレータ２４０、２４２は、制御弁２５０、２５２から入力されたエアの圧力が、式（６）により得られたエア圧力で安定するように調整し、このエア圧力で加圧部２３０、２３２にエアを送る。 (Control of pressurizing force based on air pressure that is a calculation result)
The air pressure obtained by Equation (6) is set as a preset value before the press system starts working. Specifically, the calculation unit 260 transmits the air pressure obtained by the equation (6) to the control valves 250 and 252 as control signals. The control valves 250 , 252 are opened in response to the received control signal to send air from the pressure source 280 to the regulators 240 , 242 . The regulators 240, 242 adjust the pressure of the air input from the control valves 250, 252 so as to stabilize at the air pressure obtained by the equation (6). send.
　加圧部２３０、２３２は、式（６）で求められたエア圧力で駆動されており、上フィードロール２２０は式（４）で求められた加圧力で下フィードロール２１０に押圧される（加圧工程）。これにより、上フィードロール２２０は、下フィードロール２１０との間のコイル材１２０を適切に加圧し摩擦力を得て、コイル材１２０をプレス装置３００に送り出すことができる。 The pressurizing units 230 and 232 are driven by the air pressure obtained by equation (6), and the upper feed roll 220 is pressed against the lower feed roller 210 by the pressure force obtained by equation (4). pressure process). Thereby, the upper feed roll 220 can appropriately press the coiled material 120 between itself and the lower feed roll 210 to obtain a frictional force, and feed the coiled material 120 to the press device 300 .
　以上説明したように、従来、手動で調整していたエア圧力を、本実施形態では演算によって求めて自動で設定することが可能となる。これにより、本実施形態によれば、コイル材に適した圧力となるように、上フィードロールを加圧する加圧部の設定値を自動で設定する材料送り装置、圧力演算装置及び材料送り装置の制御方法を提供することができる。 As described above, the air pressure, which has conventionally been adjusted manually, can now be calculated and automatically set in the present embodiment. As a result, according to the present embodiment, the material feeding device, the pressure computing device, and the material feeding device for automatically setting the set value of the pressure unit that presses the upper feed roll so that the pressure suitable for the coil material is obtained. A control method can be provided.
　以上、本発明の好ましい実施形態を説明したが、本発明はこれらに限定されるものではなく、その要旨の範囲内で様々な変形や変更が可能であり、例えば以下のような変形例や趣旨がある。
・例えば、レベラとフィーダが一体となったレベラフィーダに、本実施形態の構造及び制御を適用してもよい。
・本実施形態では、フィーダ２００が有する操作部２７０から値が入力され、演算部２６０によりエア圧力が演算されたが、これに限定されない。例えば、プレス装置３００が有する入力部３１８から値が入力され、コントローラ３１４によりエア圧力が演算されてもよい。
・加圧部は、電動シリンダであってもよく、演算部２６０と加圧部２３０との間の部材を電動シリンダの制御に用いる部材に置き換えて適用してもよい。
・本実施形態では、トップスピード及び加速時間を設定画面４００のパラメータ入力欄４２０にて作業者が入力したが、これに限定されない。例えば、トップスピード及び加速時間は、演算部２６０が所定の計算式に従って演算してもよい。
・本実施形態では、図４で説明した各種情報を作業者に入力させ、各種演算結果を表示部に表示させたが、これに限定されない。作業者に入力させる情報の数や内容等はエア圧力を求めることができる情報であればよい。また、演算結果も少なくともエア圧力を表示部に表示させればよく、図４の例に限定されない。 Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these, and various modifications and changes are possible within the scope of the gist. There is
- For example, the structure and control of this embodiment may be applied to a leveler feeder in which a leveler and a feeder are integrated.
- In the present embodiment, a value is input from the operation unit 270 of the feeder 200 and the air pressure is calculated by the calculation unit 260, but the present invention is not limited to this. For example, a value may be input from the input unit 318 of the press device 300 and the air pressure may be calculated by the controller 314 .
- The pressure unit may be an electric cylinder, and the member between the calculation unit 260 and the pressure unit 230 may be replaced with a member used for controlling the electric cylinder.
- In this embodiment, the operator inputs the top speed and the acceleration time in the parameter input field 420 of the setting screen 400, but the present invention is not limited to this. For example, the top speed and the acceleration time may be calculated by the calculator 260 according to a predetermined formula.
- In the present embodiment, the operator is caused to input various kinds of information described in FIG. 4, and various calculation results are displayed on the display unit, but the present invention is not limited to this. The number and contents of the information to be input by the operator may be any information that can determine the air pressure. Moreover, the calculation result is not limited to the example of FIG. 4, as long as at least the air pressure is displayed on the display unit.
１００　　　アンコイラ
１１０　　　マンドレル
１２０　　　コイル材
１３０　　　制御部
１４０　　　駆動部
２００　　　フィーダ
２１０　　　下フィードロール
２２０　　　上フィードロール
２３０、２３２　　　加圧部
２４０、２４２　　　レギュレータ
２５０、２５２　　　制御弁
２６０　　　演算部
２７０　　　操作部
２７２　　　表示部
２７４　　　入力部
２８０　　　圧力源
２９０　　　制御部
２９２　　　記憶部
２９４　　　駆動部
３００　　　プレス装置
３０２　　　筐体
３０３　　　金型　　　　３０３ａ　　　上型　　　　３０３ｂ　　　下型
３０４　　　駆動モータ
３０６　　　伝達機構
３０８　　　クランク軸
３１０　　　コンロッド
３１２　　　スライド
３１４　　　コントローラ
３１５　　　記憶部
３１６　　　表示部
３１８　　　入力部
３２２　　　ボルスタ
３２４　　　センサ
３２５　　　ロータリーエンコーダ
３２６　　　ギブ
４００　　　設定画面
４１０　　　コイル材入力欄
４２０　　　パラメータ入力欄
４３０　　　計算開始ボタン
４４０　　　計算結果欄
４５０　　　入力キー群 100 Uncoiler 110 Mandrel 120 Coil material 130 Control unit 140 Drive unit 200 Feeder 210 Lower feed roll 220 Upper feed rolls 230, 232 Pressure units 240, 242 Regulators 250, 252 Control valve 260 Operation unit 270 Operation unit 272 Display unit 274 Input unit 280 Pressure source 290 Control unit 292 Storage unit 294 Drive unit 300 Press device 302 Housing 303 Mold 303a Upper mold 303b Lower mold 304 Drive motor 306 Transmission mechanism 308 Crankshaft 310 Connecting rod 312 Slide 314 Controller 315 Storage unit 316 Display unit 318 Input Part 322 Bolster 324 Sensor 325 Rotary encoder 326 Gib 400 Setting screen 410 Coil material input field 420 Parameter input field 430 Calculation start button 440 Calculation result field 450 Input key group

Claims (7)

  1. 　第１回転体と、前記第１回転体に当接し前記第１回転体とともにコイル材を搬送する第２回転体と、を備える材料送り装置であって、
    　気体又は液体を供給する圧力源と、
    　前記圧力源から供給された気体又は液体の圧力により加圧力を発生させ、前記第２回転体に前記加圧力を加える加圧部と、
    　前記圧力源と前記加圧部との間に設けられ、前記圧力源から供給された気体又は液体の圧力を予め設定された設定値に制御する制御弁と、
    　前記コイル材に関する情報と前記材料送り装置に関する情報とが入力される入力部と、
    　前記入力部により入力された前記コイル材に関する情報と前記材料送り装置に関する情報とに基づき求められた前記設定値が表示される表示部と、
    を備える材料送り装置。     A material feeding device comprising a first rotating body and a second rotating body that contacts the first rotating body and conveys a coil material together with the first rotating body,
    a pressure source supplying a gas or liquid;
    a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second rotating body;
    a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value;
    an input unit for inputting information about the coil material and information about the material feeding device;
    a display unit for displaying the set value obtained based on the information about the coil material and the information about the material feeding device input by the input unit;
    A material feeder comprising a
  2. 　前記入力部により入力された前記コイル材に関する情報と前記材料送り装置に関する情報とに基づいて、前記設定値を演算する演算部を備える、請求項１に記載の材料送り装置。 3. The material feeding device according to claim 1, further comprising a computing section that computes the set value based on the information on the coil material and the information on the material feeding device input by the input section.
  3. 　前記コイル材に関する情報には、前記コイル材の厚さ、前記コイル材の幅、前記コイル材が搬送される搬送方向の上流側に形成される撓みの部分の長さ、前記コイル材の比重が含まれる、請求項１又は請求項２に記載の材料送り装置。 The information about the coil material includes the thickness of the coil material, the width of the coil material, the length of the bent portion formed upstream in the conveying direction in which the coil material is conveyed, and the specific gravity of the coil material. 3. A material feeding device according to claim 1 or claim 2, comprising.
  4. 　前記第１回転体及び前記第２回転体を回転させる駆動部を備え、
    　前記材料送り装置に関する情報には、前記第１回転体及び前記第２回転体と前記コイル材との間の摩擦係数、前記材料送り装置が１秒間に送り出すコイル材の長さのうち最大の長さ、前記材料送り装置が前記コイル材を送り出す速度が前記最大の長さを１秒間に送り出す速度に到達するまでに要する時間、前記加圧部の有効断面積、前記加圧部の数が含まれる、請求項１から請求項３のいずれか１項に記載の材料送り装置。     A driving unit that rotates the first rotating body and the second rotating body,
    The information about the material feeding device includes the coefficient of friction between the first rotating body and the second rotating body and the coil material, the maximum length of the length of the coil material that the material feeding device feeds per second and the time required for the speed at which the material feeding device feeds the coil material to reach the speed at which the coil material is fed the maximum length in one second, the effective cross-sectional area of the pressurizing portion, and the number of the pressurizing portions. The material feeding device according to any one of claims 1 to 3, wherein
  5. 　前記加圧部は、第１加圧部と第２加圧部との２つを含み、
    　前記第１加圧部は、前記第２回転体の長手方向における一方の端部に設けられ、
    　前記第２加圧部は、前記第２回転体の前記長手方向における他方の端部に設けられる、請求項４に記載の材料送り装置。     The pressure unit includes two of a first pressure unit and a second pressure unit,
    The first pressurizing part is provided at one end in the longitudinal direction of the second rotating body,
    Said 2nd pressurization part is a material feeding apparatus of Claim 4 provided in the other end part in the said longitudinal direction of said 2nd rotary body.
  6. 　第１部材と、前記第１部材に当接し前記第１部材とともに材料を狭持する第２部材と、を備える機械装置の圧力演算装置であって、
    　前記機械装置は、
    　　気体又は液体を供給する圧力源と、
    　　前記圧力源から供給された気体又は液体の圧力により加圧力を発生させ、前記第２部材に前記加圧力を加える加圧部と、
    　　前記圧力源と前記加圧部との間に設けられ、前記圧力源から供給された気体又は液体の圧力を予め設定された設定値に制御する制御弁と、
    を有し、
    　前記材料に関する情報と前記機械装置に関する情報とに基づいて、前記設定値を演算する演算部と、
    　前記材料に関する情報と前記機械装置に関する情報とが入力される入力部と、
    　前記演算部による演算結果を表示する表示部と、
    を備える、圧力演算装置。     A pressure computing device for a mechanical device comprising: a first member; and a second member that abuts against the first member and sandwiches a material together with the first member,
    The mechanical device is
    a pressure source supplying a gas or liquid;
    a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second member;
    a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value;
    has
    a calculation unit that calculates the setting value based on the information about the material and the information about the mechanical device;
    an input unit into which information about the material and information about the mechanical device are input;
    a display unit for displaying the result of calculation by the calculation unit;
    A pressure computing device.
  7. 　第１回転体と、前記第１回転体に当接し前記第１回転体とともにコイル材を搬送する第２回転体と、を備える材料送り装置の制御方法であって、
    　前記材料送り装置は、
    　　気体又は液体を供給する圧力源と、
    　　前記圧力源から供給された気体又は液体の圧力により加圧力を発生させ、前記第２回転体に前記加圧力を加える加圧部と、
    　　前記圧力源と前記加圧部との間に設けられ、前記圧力源から供給された気体又は液体の圧力を予め設定された設定値に制御する制御弁と、
    　　前記コイル材に関する情報と前記材料送り装置に関する情報とに基づいて、前記設定値を演算する演算部と、
    　　前記コイル材に関する情報と前記材料送り装置に関する情報とが入力される入力部と、
    を有し、
    　前記入力部を介して前記コイル材に関する情報と前記材料送り装置に関する情報とが入力される入力工程と、
    　前記演算部により前記設定値が演算される演算工程と、
    　前記演算部により演算された前記設定値で前記制御弁を制御し、前記加圧部により前記第２回転体に前記加圧力を加える加圧工程と、
    を備える、材料送り装置の制御方法。     A control method for a material feeding device comprising a first rotating body and a second rotating body that contacts the first rotating body and conveys a coil material together with the first rotating body,
    The material feeding device is
    a pressure source supplying a gas or liquid;
    a pressurizing unit that generates a pressurizing force by the pressure of the gas or liquid supplied from the pressure source and applies the pressurizing force to the second rotating body;
    a control valve provided between the pressure source and the pressurizing unit for controlling the pressure of the gas or liquid supplied from the pressure source to a preset set value;
    a calculation unit that calculates the set value based on the information about the coil material and the information about the material feeding device;
    an input unit for inputting information about the coil material and information about the material feeding device;
    has
    an input step of inputting information about the coil material and information about the material feeder through the input unit;
    a calculation step in which the setting value is calculated by the calculation unit;
    a pressurization step of controlling the control valve with the set value computed by the computation unit and applying the pressurization force to the second rotating body by the pressurization unit;
    A method of controlling a material feeding device, comprising:
PCT/JP2022/035582 2021-09-27 2022-09-26 Material feeding device, pressure calculation device, and method for controlling material feeding device WO2023048270A1 (en)

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JP2017154154A (en) * 2016-03-01 2017-09-07 コマツ産機株式会社 Roll feeder and coil stock conveying method

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JP2017154154A (en) * 2016-03-01 2017-09-07 コマツ産機株式会社 Roll feeder and coil stock conveying method

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