JP2001219906A - Stretch-wrapping machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply perform a recovery operation in a short time when a failure occurs in a machine. SOLUTION: The packaging machine rolls a film around an object to be packaged by feeding the film toward the object and changing a position of a carriage with respect to the object while relatively rotating the carriage on which a film roll is mounted and the object to the packaged. The machine comprises a controller 11 which monitors whether the failure occurs in the machine and displays information about a defective part and contents of the failure on a display of a touch-panel input device 12 when the failure occurs. In addition, the failure information about the defective part and the contents of the failure is transmitted from an output section to persons involved in maintenance via a communication network.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretch wrapping machine for wrapping a plurality of packages on a pallet by winding a plastic film while stretching the plastic film.

[0002]

2. Description of the Related Art Various products to be distributed and sold are often packaged in small units in cardboard boxes or the like, and are often transported, unloaded and stored in a state in which a predetermined number of such packages (packages) are palletized. .

[0003] Palletized luggage is used for transportation, cargo handling,
During storage or the like, the collapse of the load is likely to occur, and during transportation or the like, the product may be wetted by rainwater or the like, or may be stained to lower the commercial value. Furthermore, there is a possibility that the cargo may be unloaded during storage. So recently,
The so-called stretch wrapping, in which a plastic film such as polyethylene is wrapped around a plurality of palletized luggage, is used to prevent the collapse of the luggage and to protect the luggage from rainwater, dirt, unloading, etc. I have.

As an apparatus for performing such stretch packaging, conventionally, a turntable on which luggage is loaded, a carriage on which a film feeding roller is mounted, a mast for supporting the carriage, and a carriage which is vertically moved along the mast. With a lifting mechanism to move the film, set the film roll on the carriage, put the palletized luggage on the turntable, rotate the turntable, feed out the film to the side of the luggage, and raise and lower the carriage There is a turntable type stretch wrapping machine that spirally winds a film around palletized luggage (for example, Japanese Patent Publication No. 59-940).
No. 3).

[0005] As another stretch wrapping machine, a fixed table on which a load is placed, a carriage on which a feeding roller for feeding a film is mounted, an arm for rotating the carriage around the side of the load, and an elevating device for moving the carriage up and down. With a mechanism, with the palletized luggage placed on the fixed base, the film is fed out to the side of the luggage while rotating the carriage around the side of the luggage, and the carriage is raised and lowered, so that the palletized luggage is There is an arm-rotation type stretch wrapping machine that winds a film in a spiral shape (for example, JP-A-8-156908).

Further, as another stretch wrapping machine, a conveyor for transporting a long load, a carriage on which a feeding roller for feeding a film is mounted, and the carriage rotating around the side of the long load. Equipped with a drum, and with the tip of the long baggage placed inside the drum,
There is a rotary drum-type stretch wrapping machine that gives a constant feed to luggage by a conveyor and feeds out a film while rotating a drum, thereby winding a film around a long luggage in a spiral shape.

[0007]

In the conventional stretch wrapping machine, when an abnormality occurs in the apparatus, an operator is notified of the abnormality by lighting a lamp indicating the content of the abnormality. When an error occurs, the operator searches for a manual or the like based on the display of the lamps, and recovers from the error according to the operating procedure for avoiding the error corresponding to the display, or contacts the manufacturer to recover from the error. It is carried out. for that reason,
At present, the recovery work is difficult to understand, and it takes a long time to recover from the abnormality. Also, when contacting the manufacturer to recover from an error, the main problem is the telephone exchange, so it is difficult for the operator to accurately communicate the status of the error to the manufacturer. It can take a lot of time.

The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a stretch wrapping machine that can easily perform a return operation when an apparatus abnormality occurs.

[0009]

SUMMARY OF THE INVENTION A stretch wrapping machine according to the present invention feeds a film to a wrapped object while relatively rotating a carriage on which a film roll is mounted and a wrapped object, and wraps the carriage on the carriage. By changing the position with respect to the object, the packaging machine that winds the film around the object to be packaged monitors whether or not an abnormality has occurred in the packaging machine. It is characterized by having a controller for displaying on the display of the expression input device.

According to the stretch wrapping machine of the present invention, when an abnormality occurs, the location of the abnormality and the details of the abnormality are displayed on the display of the touch panel type input device. (Trouble) can be grasped easily and clearly.

In the stretch wrapping machine of the present invention, the film is fed onto the wrapped object while the carriage on which the film roll is mounted and the wrapped object are relatively rotated, and the position of the carriage with respect to the wrapped object is changed. Thereby, in a packaging machine for winding a film around an object to be packaged, it is monitored whether or not a device abnormality has occurred, and when an abnormality has occurred, abnormality information relating to the abnormality location and the abnormality content is supplied to an output unit. It is characterized by comprising a controller and configured to be able to transmit abnormality information from an output unit thereof to a person involved in maintenance via a communication network.

According to the stretch wrapping machine of the present invention, the abnormality information can be directly transmitted to the maker side without the intervention of the operator, so that even if the operator is not familiar with the structure and operation of each part of the stretch wrapping machine, The details of the abnormal situation can be accurately grasped on the manufacturer side.

[0013]

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

FIG. 1 is a perspective view schematically showing the overall configuration of an embodiment of a stretch packaging machine according to the present invention.

The embodiment shown in FIG. 1 is a turntable rotating type stretch packaging machine, which includes a mast 2 having a lower end fixed to a base frame 1, a turntable 3, a carriage 4, an elevating mechanism 5, and a film feeding device 6. , And the control box 7, etc., and a display 12 a of the touch panel input device 12 is arranged on the front surface of the control box 7. In the stretch wrapping machine shown in FIG. 1, a holding plate (platen) 8 for preventing the load W from being collapsed when the load W placed on the turntable 3 rotates is installed above the mast 2.

The turntable 3 is rotatably supported at the tip of the base frame 1. A table rotation motor 30 that applies a rotation force to the turntable 3 is installed at an end of the base frame 1 on the mast 2 side.

The carriage 4 is supported by the mast 2 so as to be vertically movable, and is vertically moved by an elevating mechanism 5. The elevating mechanism 5 includes a carriage elevating motor 50 and a belt 51 wound around a rotation shaft of the motor 50 via a pulley (not shown) or the like. The rotation of the carriage elevating motor 50 causes the belt 51 to move up and down. The carriage 4 is configured to move up and down.

A photoelectric switch 21 for detecting a load W placed on the turntable 3 is provided above the carriage 4. The photoelectric switch 21 is kept ON while the detection light catches the baggage W while the carriage 4 is rising from the lower end (origin),
When the detection light deviates from the load W, that is, the photoelectric switch 21
Is turned off when exceeds the upper end of the package W.

The film feeding device 6 is mounted on the carriage 4 and has two rollers, a feeding roller 61 and a stretching roller 62, as shown in FIGS. 2A and 2B. The rotation shaft 61a of the feeding roller 61 is provided with a pair of spur gears 6 on the rotation shaft 60a of the film feeding motor 60.
4, 65 are connected. A gear 66 fixed to a rotating shaft 61a of the feeding roller 61 is meshed with a gear 66 connected to an electromagnetic clutch 63, and a rotating shaft 62a of the stretching roller 62 is joined to an output shaft 63a of the electromagnetic clutch 63. 67 are connected. In addition, as the electromagnetic clutch 63, for example, a powder clutch that uses magnetic iron powder for torque transmission and that can adjust the transmission torque steplessly by controlling the applied voltage is used.

In the above-described film feeding device 6, as shown in FIG. 3, the film F from the film roll R is passed between the stretching roller 62 and the feeding roller 61 in a sewing manner, and then turned from the feeding roller 61. The film F is paid out toward the side of the load W on the table 3. The feeding amount can be controlled by the rotation speed of the film feeding motor 60. Also, in this film feeding device 6,
By changing the voltage applied to the electromagnetic clutch 63, the rotation ratio between the feeding roller 61 and the stretching roller 62 can be adjusted steplessly. Therefore, the film F is controlled by the two rollers 61 and 62. The film F can be fed out to the luggage W on the turntable 3 in a state where pre-stretching (pre-stretching) has been given to the turntable 3.

The film feeding device 6 has a film feeding sensor 22 for detecting the force acting on the feeding roller 61 during film feeding, that is, the film winding tension.
Is installed. Limit switches 23 and 24 for regulating the upper and lower limits of the carriage 4 are provided above and below the carriage 4, respectively. Further, below the turntable 3, the origin position of the turntable 3 (rotation direction) ) Is provided.

Next, the configuration of the control system of this embodiment is shown in FIG.
This will be described with reference to FIG.

The control system according to this embodiment comprises a controller 1
1 and a touch panel input device 12 for setting data relating to packaging conditions in the controller 11.

The controller 11 includes inverters 13, 1, 1, and 1, which are individually connected to the table rotation motor 30, the carriage elevating motor 50, and the film feeding motor 60, respectively.
The control signals are supplied to the voltage converters 17 connected to the electromagnetic clutches 5 and 16 via the D / A converter 18. The controller 11 receives the outputs of the photoelectric switch 21 installed on the carriage 4, the two limit switches 23 and 24 installed above and below the carriage 4, and the proximity sensor 25 installed below the turntable 3. Is done. Further, the output of the film feeding sensor 22 installed in the film feeding device 5 is input via the A / D converter 19.

The inverters 13 and 15 connected to the table rotation motor 30 and the carriage lifting / lowering motor 50 are provided with a protection function. When the protection function is activated, an abnormal signal indicating the protection is transmitted to an external device. In addition to the output to the device, the details of the abnormality when the protection function is activated are displayed on the operation panel (inverter side). These abnormal signals of the inverters 13 and 15 are input to the controller 11.

The touch panel type input device 12 includes an automatic operation screen D1 as shown in FIGS.
Any one of the setting screen D3, the data display screen D4, and the quantity display screen D5 can be selectively displayed on the display 12a. The screen selection is made for each screen D
"Auto", "Manual", "Setting", "Data" or "Quantity" displayed at the top of 1, D2, D3, D4, D5
Can be performed by an operation of pressing the character with a finger. An emergency stop button 26 is provided on the panel of the touch panel input device 12 (control box 7) (FIG. 1).

As shown in FIG. 5, on the automatic operation screen D1, setting of the packaging form (double winding / single winding), the selection of the packaging such as the top sheet, the film cut, the presence or absence of the holding plate (platen), and the setting of the packaging quantity. Keys for inputting and keys for selecting programs P1 to P5 to be described later are displayed.

As shown in FIG. 6, the manual operation screen D2 includes buttons for manually operating the rotation of the turntable 3, a carriage 4 and a lifting plate (platen) 8 for raising and lowering.
A button for manually operating the descent is displayed.

As shown in FIG. 7, on the setting screen D3, items to be set, items such as the number of rotations of the turntable, the amount of overlap, the stretching ratio, the winding tension, the number of times of winding, the number of times of lower winding, and the amount of upper folding are set. And UP / DOWN for inputting a numerical value to be set for each setting item
Keys and keys for selecting programs P1 to P5 are displayed. On this setting screen D3, the set value of each setting item is displayed digitally (numerically), and the numerical value of each setting item can be set by operating the UP / DOWN key. Then, after each item is set, the data write key is pressed, and then the program selection key is pressed.
The type of setting data can be stored.

As shown in FIG. 8, the data display screen D4 displays data such as the operating status, the current packaging time, and the amount of film used. As shown in FIG. 9, the quantity display screen D5 displays the number of pallets to be processed based on each of the programs P1 to P5.

Based on the set values set by the touch panel type input device 12 and the output signals of the photoelectric switch 21 and the film feeding sensor 22, the controller 11 controls the table rotation speed, the carriage elevating speed, the upper limit position of the carriage, Control of the film feeding amount and the stretching ratio is performed. The details of each process will be described below. [Table rotation speed] The table rotation speed set value set by the touch panel input device 12 is taken in, and the rotation speed of the table rotation motor 30 is made to match the set value.
A control signal is supplied to the inverter 13 via the D / A converter 18 to control the frequency of electric power introduced to the table rotation motor 30. [Carriage elevating speed] The table rotation speed and the overlap amount set by the touch panel input device 12 are taken in, and the carriage elevating speed with respect to the rotation speed of the turntable 3 is calculated based on the set values. In order to match the vertical speed of the carriage 4 with the calculated value,
A control signal is supplied to the inverter 15 via the D / A converter 18 to control the frequency of electric power introduced to the carriage lifting motor 50. [Carriage upper limit position] The set value of the amount of folding set by the touch panel input device 12 is taken in, the set value, the detection OFF signal from the photoelectric switch 21, and the distance between the photoelectric switch 21 and the upper end of the film roll R. h (see FIG. 10), the upper limit position of the carriage 4 when the carriage 4 is raised is calculated, and the time required for the carriage 4 to reach the upper limit position is calculated from the calculated value and the carriage lifting / lowering speed. Control the upper limit position. [Film feeding amount] The table rotation speed and the winding tension set by the touch panel input device 12 are taken in, and the film feeding amount is calculated based on the set values and the output of the film feeding sensor 22. To this calculated value,
A control signal is supplied to the inverter 16 via the D / A converter 18 so as to control the frequency of the electric power introduced into the film feeding motor 60 so that the feeding amount of the feeding roller 61 is matched. [Stretch ratio] The set value of the stretch ratio set by the touch panel input device 12 is adopted, and based on the set value,
The rotation ratio between the feeding roller 61 and the stretching roller 62 is calculated,
With the calculated value as a target value, a control signal is supplied to the voltage converter 17 via the D / A converter 18 so that the electromagnetic clutch 6
3 is controlled.

Here, when the emergency stop button 26 is pressed, the controller 11 outputs information indicating that to the touch panel type input device 12 to display it on the display 12.
Display in a. In addition, the operation states of the inverters 13 and 15 of the table rotation motor 30 and the carriage elevating motor 50 are sequentially monitored, and the limit switches 23 and 24 for regulating the upper and lower limits of the elevating movement of the carriage 4 and the lower part of the turntable 3. Each output signal of the proximity sensor 25 is monitored one by one.
Information about the abnormal location and the content of the abnormality is output to the touch panel input device 12 and displayed on the display 12a.

Details of the display screen at the time of each abnormality will be described below. In the present embodiment, when a device abnormality has occurred, a buzzer sound for notifying the user is issued from the controller 11. [Emergency stop screen] This is a display screen E1 displayed when the emergency stop button 26 is pressed, as shown in FIG.
Operation buttons for performing each operation of stopping the buzzer and resetting the abnormality are displayed on the screen of the display 12a, and "The emergency stop button on the panel is pressed." And "Turn clockwise to release the lock. Please. "Is displayed. [Carriage descent abnormality screen] This is a display screen E2 for notifying a mechanical abnormality that has occurred when the carriage 4 is lowered. As shown in FIG. 12, operation buttons for performing each operation of buzzer stop and abnormality reset are displayed on the display 12a. As well as being displayed on the screen, "1) Is the limit switch at the bottom of the carriage activated ?: Remove obstacles. 2) Is the carriage reaching the floor?" 3) Limit Is the switch wiring broken? "Is displayed.

The display screen E2 shown in FIG.
If a button to select "drawing" or "photo" is displayed, and it is difficult to find abnormal parts only by text display,
By pressing on the letters "drawing" or "photograph", the abnormal part can be displayed on the screen of the display 12a as a drawing or a photograph.

Here, it is difficult for an ordinary operator to confirm whether or not the limit switch 24 below the carriage 4 is disconnected. In this example, a button for selecting a device monitor is displayed. Yes,
When this button is pressed, the status of the limit switches is displayed on the screen of the display 12a, and by checking the operation by pressing the limit switch on the screen, it is possible to check whether the limit switch 24 is disconnected.

When the abnormal information regarding the carriage lowering abnormality cannot be displayed on one screen, the screen switching button "if neither of the above" is displayed on the screen of the display 12a as shown in FIG. By
It is designed to lead to more detailed operations and the like. [Carriage upper and lower limit sensor abnormality screen] This is a display screen E3 for notifying the operation abnormality of the two limit switches 23 and 24 provided on the upper and lower sides of the carriage 4, and performs each operation of stopping the buzzer and resetting the abnormality as shown in FIG. Operation button is displayed on the screen of the display 12a, the abnormal information that "the upper limit switch and the lower limit switch of the carriage are ON at the same time." And "1) The lever touches somewhere, 2) Is the sensor wiring broken? "Is displayed. And in this display example,
A button for selecting a device monitor is displayed in the same manner as in the previous display example. By operating this button, it is possible to easily confirm whether or not the two limit switches 23 and 24 are disconnected.

The display screen E3 shown in FIG. 13 displays a button for selecting a “drawing” or a “photograph” for easy understanding, similarly to the above display example. Also on this display screen E3, if the abnormal information relating to the carriage upper / lower limit sensor abnormality cannot be displayed on one screen, a screen switching button "if neither of the above" is displayed on the screen of the display 12a. [Table sensor abnormality screen] This is a display screen for notifying the abnormality of the proximity sensor 25 provided below the turntable 3, and as shown in FIG. 14, operation buttons for performing each operation of buzzer stop and abnormality reset are displayed on the display 12a. Is displayed on the screen, and the error information "Proximity sensor under the table is not functioning." And "1) Is the sensor wiring broken? 2) The sensor fixing position is appropriate. Is displayed? "Is displayed. Also, in this display example, a button for selecting a device monitor is displayed as in the previous display example, and by operating this button, the presence or absence of disconnection of the proximity sensor 25 can be easily confirmed.

A display screen E4 shown in FIG. 14 displays a button for selecting a "drawing" or "photograph" for easy explanation, similarly to the above display example. Also, on this display screen E4, when the abnormality information relating to the table sensor abnormality cannot be displayed on one screen, the screen switching button "if neither of the above" is displayed on the screen of the display 12a. [Carriage Inverter Abnormality Screen] This is a display screen E5 for notifying the abnormality of the inverter 15 connected to the carriage elevating motor 50. As shown in FIG. 15, operation buttons for performing each operation of buzzer stop and abnormality reset are displayed on the display 12a. Is displayed on the screen as well as the error information "The protection function of the inverter has stopped working." And "1) Check the monitor display contents of the corresponding inverter. 2) Press the reset button of the inverter to return to normal. If not, please contact your retailer. "

The contents of the monitor display of the inverter can be confirmed by, for example, incorporating a monitor display manual for the inverter and operating the operation button "inverter monitor" displayed on the display screen E5 to confirm the error display. What should I do? [Table inverter error screen] Table rotation motor 3
This is a display screen for notifying an abnormality of the inverter 13 connected to the terminal 0, and displays the same abnormality information and message as the display example shown in FIG. However, the title of the display screen is changed from “carriage inverter error” to “table inverter error”.

FIG. 16 is a perspective view schematically showing the entire structure of another embodiment of the stretch packaging machine of the present invention.

The embodiment shown in FIG. 16 is a stretch packaging machine of the arm rotation type, which has a gate-shaped base 101 comprising a top beam 101a and base frames 101b supporting both ends thereof, a conveyor 102, an arm 103, a carriage 104, Lifting mechanism 105, film feeding device 106,
And a control box 107. A display 11 of a touch panel input device 112 is provided on the front of the control box 107.
2a is arranged.

The conveyor 102 is a device for transporting and arranging the palletized cargo W at a position below the center of the top beam 101a of the gantry 101.

The arm 103 is an inverted L-shaped member composed of a horizontal beam 103a and a vertical beam 103b. One end of the horizontal beam 103a is rotatably supported at the center of the top beam 101a of the gantry 101. A rotational force is applied to the arm 103 by an arm rotation motor 130 installed at the upper center of the top beam 101 a of the gantry 101, and the rotation of the arm 103 causes the carriage 104 to move at the center of the gantry 101. It rotates (revolves) around the side of W.

The carriage 104 is vertically movably supported by the vertical beam 103b of the arm 103, and is vertically moved by an elevating mechanism 105. Lifting mechanism 105
Is composed of a carriage elevating motor 150 and a belt (not shown) wound around a rotating shaft of the carriage elevating motor 150 via a pulley or the like. The rotation of the carriage elevating motor 150 causes the belt to move up and down, 104 is configured to move up and down.

On the upper part of the carriage 104, a gantry 101
A photoelectric switch 121 for detecting a load W disposed at a central position (on the conveyor 102) is provided.
The photoelectric switch 121 is kept ON while the detection light is capturing the luggage W while the carriage 104 is moving up from the lower end (origin). Is turned off when exceeds the upper end of the package W.

The carriage 104 includes a film feeding device 1
06 is mounted. This film feeding device 106
Has a structure similar to that shown in FIGS. 2 and 3 and includes a feeding roller 161 and a stretching roller 162, a film feeding motor 160, and an electromagnetic clutch (not shown).
In a state where the film F from the film roll R is pre-stretched (preliminarily stretched), the film F is transferred to the conveyor 1
02 on the side of the baggage W.
The film feeding device 6 is provided with a film feeding sensor 122 (see FIGS. 2 and 17) for detecting a force acting on the feeding roller 61 during film feeding, that is, a film winding tension.

In the stretch wrapping machine of this embodiment, the film roll R is set on the carriage 104, and the pallet-stacked luggage W is placed at the center of the gantry 101. By unwinding the film F from the roll R to the side of the load W and moving the carriage 104 up and down along the vertical beam 103b of the arm 103, the film F can be spirally wound around the load W.

Note that limit switches 123 and 124 for regulating the upper and lower limits of the carriage 104 are provided above and below the carriage 104, respectively, and a proximity switch for detecting the origin position in the rotation direction of the carriage 104 is provided. A sensor 25 is provided.

Next, the configuration of the control system of this embodiment will be described with reference to the block diagram of FIG. 17 and the previous FIG.

The control system of this embodiment comprises a controller 1
11 and a touch panel input device 112 for setting data related to packaging conditions in the controller 111. The controller 111 includes the arm rotation motor 1
30, an inverter 11 individually connected to the carriage elevating motor 150 and the film feeding motor 160, respectively.
3, 115, 116, and a control signal to a voltage converter 117 connected to the electromagnetic clutch 163.
Feed through. The output of the photoelectric switch 121 provided on the carriage 104 is input to the controller 111, and the output of the film feeding sensor 122 installed on the film feeding device 105 is input to the A / D converter 11.
9.

The inverters 113 and 115 connected to the arm rotation motor 130 and the carriage lifting / lowering motor 150 are provided with a protection function. When the protection function is activated, an abnormal signal indicating the protection is transmitted to an external device. In addition to the output to the device, the details of the abnormality when the protection function is activated are displayed on the operation panel (inverter side). Each abnormal signal of these inverters 113 and 115 is input to the controller 111.

The touch panel type input device 112 has an automatic operation screen D1, a manual operation screen D2, a setting screen D3, a data display screen D4, or a quantity display screen having a display format similar to the display examples shown in FIGS. Any one screen of D5 can be selectively displayed on the display 12a. The screen selection is made for each screen D1, D2, D3, D4,
It can be performed by an operation of pressing a finger on the letters "auto", "manual", "setting", "data" or "quantity" displayed at the top of D5. In this embodiment, however, the setting screen D3 shown in FIG. 7 displays the arm rotation speed (rpm) instead of the turntable rotation speed (rpm). In the automatic operation screen D2 in FIG.
“Arm” is displayed instead of “turntable”. The emergency stop button 126 is provided on the panel of the touch panel type input device 112 (control box 107).
Is provided (FIG. 16).

Based on the set value set by the touch panel type input device 112 and the output signals of the photoelectric switch 121 and the film feeding sensor 122, the controller 111 controls the arm rotation speed, the carriage elevating speed, the upper limit position of the carriage, and the film feeding. It is configured to control the amount and the stretching ratio. The content of each process is the same as that of the previous embodiment, and the detailed description thereof is omitted here because the turntable rotation speed only replaces the arm rotation speed.

Further, when the emergency stop button 126 is pressed, the controller 111 outputs information indicating that to the touch panel input device 112 and displays it on the display 112a. Also, the arm rotation motor 130
And limit sensors 123 and 124 for sequentially monitoring the operation states of the inverters 113 and 115 connected to the carriage lifting motor 150 and for controlling the upper and lower limits of the lifting and lowering movement of the carriage 104, and the proximity sensor for detecting the origin position of the carriage 104. Each output signal of 125 is monitored one by one, and when there is an abnormality, information on the location and content of the abnormality is output to the touch panel input device 112 and displayed on the display 112a. The contents of each display are the same as those of the previous embodiment, and the display of “turntable” merely replaces “arm”, and therefore, detailed description thereof is omitted here.

FIG. 18 is a perspective view schematically showing the entire configuration of another embodiment of the stretch packaging machine of the present invention.

The embodiment shown in FIG. 18 is a stretch packaging machine of a rotary drum type, in which a rectangular box-shaped casing 201 having an opening 201a and an opening 201b for a long baggage W 'is opened. A film winding device 203 installed in a casing 201; and conveyors 204, 20 arranged on the upstream side and the downstream side of the casing 201, respectively.
5 and a control box 206. A display 21 of a touch panel input device 212 is provided on the front of the control box 206.
2a is arranged.

A photoelectric switch 221 is disposed on the side of the entrance 201a and the exit 201b of the casing 201. The photoelectric switch 221 is kept ON while the detection light is capturing the luggage W ′ while the luggage W ′ is passing through the film wrapping device 203, and the detection light is released from the luggage W. It turns off at the point of time.

The film wrapping device 203 is shown in FIG.
As shown in (A) and (B), conveyors 204 and 205
A ring-shaped drum 231 that can freely rotate (rotate) about a straight line along the conveyance direction of the load, and a drum rotation motor 230 that applies a rotational force to rotate the drum 231 around the outer periphery of the load W ′.

The drum 231 is provided with a carriage 232 for holding the film roll R and a balancer 233 for keeping the rotation stable. The carriage 232 is swingably supported by the drum 231 via a pin 232a. The carriage 232 is provided with a free roller 234 at a position facing the film roll R. An extension roller (rubber roller) 235 is disposed near the carriage 232. Then, the film F from the film roll R is, as shown in FIG.
It is wound around the stretching roller 235 and the free roller 234
From the baggage W '. The stretching roller 235 is provided with an adjusting mechanism for controlling the movement of the spool using an elastic force of a spring or the like. By operating the adjusting mechanism, the tension of the film F wound around the baggage W ′ is manually adjusted. Can be adjusted.

The conveyors 204 and 205 feed the long baggage W 'in a state where a constant feed is given thereto.
03, the feed amount of which can be adjusted by controlling the frequency of the power supplied to the conveyor motor 250 (the upstream side is not shown).

In the stretch wrapping machine of this embodiment, a long baggage W 'is placed on the conveyor 204, and the leading end thereof is placed on the drum 23 of the film winding device 203.
1, the conveyors 204 and 205 are driven to give a constant feed to the load W ', and the film F is directed from the film roll R toward the side of the load W' while rotating the drum 231. By moving out
The film F can be spirally wound around the long baggage W '. Further, the leading end or the trailing end of the long baggage W ′ is arranged inside the drum 231 and
By rotating the drum 231 in a state in which the feeding by the feeding is not given, the film winding (bundling) only at both ends of the long baggage W 'can be performed.

The drum 2 is located below the drum 231.
A proximity sensor 225 for detecting the origin position (rotation direction) of the base 31 is provided (FIG. 18).

Next, the configuration of the control system of this embodiment is shown in FIG.
This will be described with reference to block 0 and FIG.

The control system of this embodiment comprises a controller 2
11 and a touch panel type input device 212 for setting data relating to packaging conditions to the controller 211. The controller 211 includes the drum rotation motor 2
30, control signals are supplied to the inverters 213 and 215 individually connected to the conveyor motor 250 via the D / A converter 218. Also, the controller 211
, The output of the photoelectric switch 221 is input.

The inverters 213 and 215 connected to the drum rotation motor 230 and the conveyor motor 250 are provided with a protection function. When the protection function is activated, an abnormal signal indicating the protection is transmitted to an external device. Is output to the control panel (inverter side). Each abnormal signal of these inverters 213 and 215 is
11 is input.

The touch panel type input device 212 shown in FIG.
25, any one of the automatic operation screen D21, the manual operation screen D22, the setting screen D23, the data display screen D24, and the quantity display screen D25 is displayed on the display 21.
2a can be selectively displayed. The screen is selected by pressing a finger on the letters "automatic", "manual", "setting", "data" or "quantity" displayed at the top of each screen D21, D22, D23, D24, D25. Can be done with The emergency stop button 22 is provided on the panel of the touch panel input device 212 (control box 206).
6 are provided.

On the automatic operation screen D21, as shown in FIG. 21, keys for selecting the package (whole spiral winding / both ends winding) and setting inputs such as the number of packages, and programs P21 to P25 to be described later are selected. Key is displayed.

As shown in FIG. 22, a button for manually operating the rotation of the drum 231 is displayed on the manual operation screen D22.
Buttons for manually operating the forward and backward movements of the conveyors 204 and 205 are displayed.

As shown in FIG. 23, on the setting screen D23,
A key for designating each setting item of the number of rotations of the drum and an overlap amount, an UP / DOWN key for inputting a numerical value to be set for each setting item, and programs P21 to P25
A key for selecting is displayed. On the setting screen D23, the set value of each setting item is displayed digitally (numerically), and the numerical value of each setting item can be set by operating the UP / DOWN key. Then, by pressing the data write key after setting each item, and then pressing the program selection key, five types of setting data can be stored.

As shown in FIG. 24, the data display screen D24 displays data such as the operating status, the current packaging time, and the amount of film used. As shown in FIG. 25, the number of products to be processed based on each of the programs P21 to P25 is displayed on the quantity display screen D25.

Then, the controller 211 controls the number of rotations of the drum and the speed of the conveyor based on the set values set by the touch panel type input device 212. The details of each process will be described below. [Drum rotation speed] The set value of the drum rotation speed set by the touch panel input device 212 is taken in, and the control signal is D / A-converted to the inverter 213 so that the rotation speed of the drum rotation motor 230 matches the set value. To control the frequency of the electric power supplied to the table rotation motor 30 through the heater 218. The drum rotation motor 230
Is stopped when the output signal of the photoelectric switch 221 is turned off (packaging is completed). [Conveyor speed] Each set value of the number of rotations of the drum and the amount of overlap set by the touch panel input device 212 is taken in, the conveyor speed for the number of rotations of the drum 231 is calculated based on the set values, and the calculated value is calculated. A control signal is supplied to the inverter 250 via the D / A converter 218 to control the frequency of the electric power introduced into the conveyor motor 250 so that the speed of the conveyor 205 matches the speed of the conveyor 205.

Here, when the emergency stop button 226 is pressed, the controller 211 outputs information indicating that to the touch panel input device 212 and displays it on the display 212a. Also, the drum rotation motor 230
And the inverters 213 and 215 of the conveyor motor 250
And the output signal of the proximity sensor 225 for detecting the origin position of the drum 231 is successively monitored. The data is output to the input device 212 and displayed on the display 212a.

The details of the display screen at the time of each abnormality will be described below. In the present embodiment, when a device abnormality occurs, a buzzer sound for notifying the occurrence is issued from the controller 211. [Emergency stop screen] This is a display screen E21 displayed when the emergency stop button 226 is pressed. As shown in FIG. 26, operation buttons for performing each operation of buzzer stop and abnormal reset are displayed on the screen of the display 212a. In addition to the above, character information such as "The emergency stop button on the board is being pressed." And "Turn clockwise to unlock" are displayed. [Drum Sensor Abnormality Screen] This is a display screen E22 for notifying an abnormality of the proximity sensor 225 provided below the drum 231. As shown in FIG. 27, an operation button for performing each operation of buzzer stop and abnormality reset is displayed on the display 212a.
Is displayed on the screen as well as the error information "The proximity sensor under the drum is not functioning." And "1) Is the sensor wiring broken? 2) The sensor fixing position is appropriate. Is displayed? "Is displayed. Also in this display example, a button for selecting a device monitor is displayed similarly to the display example of the previous embodiment, and by operating this button, it is possible to easily confirm the presence or absence of disconnection of the proximity sensor 225. it can.

Note that the display screen E22 shown in FIG. 27 displays a button for selecting a “drawing” or “photograph” for easy explanation, similarly to the display example of the previous embodiment. Also, on this display screen E22, if the abnormality information relating to the table sensor abnormality cannot be displayed on one screen, the screen switching button "if none of the above" is displayed on the screen of the display 212a. [Drum inverter error screen] Drum rotation motor 230
28 is a display screen E23 for notifying an abnormality of the inverter 213 connected to the controller 212. As shown in FIG. 28, operation buttons for performing each operation of stopping the buzzer and resetting the abnormality are displayed on the screen of the display 212a. Check that the inverter's protection function has stopped working. "And the information displayed on the monitor of the corresponding inverter. 2) If normal operation cannot be restored by pressing the inverter's reset button, the dealer from which you purchased the product. Please contact us. "Message is displayed.

The contents of the monitor display of the inverter can be confirmed by, for example, incorporating a monitor display manual for the inverter and operating the operation button "inverter monitor" displayed on the display screen E23 to confirm the error display. What should I do? [Conveyor inverter error screen] Conveyor motor 250
28 is a display screen informing the user of an abnormality of the inverter 215 connected thereto, and the same abnormality information and message as the display example shown in FIG. 28 are displayed. However, the title of the display screen is changed from “Drum inverter error” to “Conveyor inverter error”.

Here, in each of the above embodiments, when a device abnormality occurs, the abnormality information relating to the location of the abnormality and the content of the abnormality are displayed on the display of the touch panel type input device, thereby simplifying the return operation. In addition, a system is also conceivable in which abnormal information is directly transmitted to maintenance personnel on the maker side, and the maker side grasps the abnormal situation and performs a return operation.

More specifically, as shown in FIG. 29, an output terminal T is provided in the control box 7 of the stretch wrapping machine S, and abnormality information is supplied from the controller 11 to the output terminal T. Occurs,
A method of connecting the mobile phone P to the output terminal T and transmitting the abnormality information to the personal computer C on the manufacturer side using the telephone communication system, or connecting the personal computer to the output terminal T of the control box 7 and A method of transmitting abnormality information from a personal computer on the side to a personal computer on the manufacturer side via a communication network (the Internet or the like) can be cited.

By employing the above-described system, the abnormality information can be transmitted directly to the manufacturer without the intervention of the operator, so that the operator does not need to be familiar with the structure and operation of each part of the stretch packaging machine. Also, the contents of the abnormal situation can be accurately grasped on the maker side, and the return process can be completed in a short time.

Further, since it is possible to determine whether or not the generated apparatus abnormality is an abnormality that can be recovered by the operation of the operator before the recovery operation is performed on the maker side, the maintenance worker is wasted. Travel can be omitted.

For example, conventionally, when a trouble that can be easily solved by an operator, for example, a trouble occurs due to exhaustion of a memory backup battery in the controller or forgetting to turn on a switch required for operation, maintenance is performed. In some cases, the worker is called by the user, but such a wasteful business trip can be avoided.

[0081]

As described above, according to the stretch wrapping machine of the present invention, when an abnormality occurs in the apparatus, information on the abnormality location and the details of the abnormality is displayed on the display of the touch panel input device. Therefore, the operator can easily and clearly grasp the abnormal situation (trouble) simply by looking at the display screen, and the return operation can be completed in a short time.

Further, according to the stretch wrapping machine of the present invention, there is provided an output section for outputting abnormal information relating to the abnormal location and the abnormal content to the outside, and from the output section, the abnormal information is transmitted to maintenance personnel via a communication network. Is configured to transmit abnormal information directly to the manufacturer without the intervention of an operator. This allows the operator to be familiar with the structure and operation of each part of the stretch packaging machine. As a result, the details of the abnormal situation can be accurately grasped on the manufacturer side, so that the return work can be shortened.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing an entire configuration of an embodiment of the present invention.

FIG. 2 is a front view (A) and a side view (B) showing a configuration of a film feeding device used in an embodiment of the present invention.

FIG. 3 is a plan view schematically showing the configuration of the film feeding device.

FIG. 4 is a block diagram illustrating a configuration of a control system according to the embodiment of the present invention.

FIG. 5 is a diagram illustrating an example of a screen displayed on a display of the touch panel input device.

FIG. 6 is a diagram showing an example of a screen similarly displayed on a display.

FIG. 7 is a diagram showing an example of a screen similarly displayed on a display.

FIG. 8 is a diagram showing an example of a screen similarly displayed on a display.

FIG. 9 is a diagram showing an example of a screen similarly displayed on a display.

FIG. 10 is an explanatory diagram of a method of controlling the upper limit position of the carriage.

FIG. 11 is a diagram illustrating an example of an abnormal display displayed on the display of the touch panel input device.

FIG. 12 is a diagram showing an example of an abnormal display similarly displayed on a display.

FIG. 13 is a diagram showing an example of an abnormal display similarly displayed on the display.

FIG. 14 is a view showing an example of an abnormal display similarly displayed on the display.

FIG. 15 is a diagram showing an example of an abnormal display similarly displayed on the display.

FIG. 16 is a perspective view schematically showing the entire configuration of another embodiment of the present invention.

FIG. 17 is a block diagram illustrating a configuration of a control system according to another embodiment of the present invention.

FIG. 18 is a perspective view schematically showing the entire configuration of another embodiment of the present invention.

19A and 19B are a front view (A) and a side view (B) schematically showing a main part configuration of the film winding device used in the embodiment of FIG.

FIG. 20 is a block diagram illustrating a configuration of a control system according to another embodiment of the present invention.

FIG. 21 is a diagram showing another example of a screen displayed on the display of the touch panel input device.

FIG. 22 is a diagram showing another example of a screen displayed on the display.

FIG. 23 is a diagram showing another example of a screen similarly displayed on the display.

FIG. 24 is a diagram showing another example of a screen similarly displayed on the display.

FIG. 25 is a diagram showing another example of a screen similarly displayed on the display.

FIG. 26 is a diagram showing another example of an abnormal display displayed on the display of the touch panel input device.

FIG. 27 is a diagram showing another example of the abnormal display similarly displayed on the display.

FIG. 28 is a diagram showing another example of the abnormality display similarly displayed on the display.

FIG. 29 is a view schematically showing a configuration of still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base frame 2 Mast 3 Turntable 30 Table rotation motor 4 Carriage 5 Elevating mechanism 50 Carriage elevating motor 6 Film feeding device 60 Film feeding motor 61 Feeding roller 62 Stretching roller 63 Electromagnetic clutch 7 Control box 11 Controller 12 Touch panel type input device 12a Display Screen 13 Inverter (for table rotation motor) 15 Inverter (for carriage elevating motor) 16 Inverter (for film feeding motor) 17 Voltage converter 18 D / A converter 19 A / D converter 21 Photoelectric switch 22 Film feeding sensor E1- E5 Error display screen T Output terminal R Film roll F Film W Luggage (package)

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Yoshimi Ogita, Inventor Yoshimi Kamaya-cho, Yoshihara, Negami-cho, Nomi-gun, Ishikawa Pref. Row 1 Fukumizu Co., Ltd. Ishikawa Plant F-term (reference) 3E051 AA08 AB05 BA13 CA08 EA01 FA01 FA06 FA08 JA02 KA02 KA03 KA08 KB01 LA04 LA08 LB05 LB08

Claims (2)

[Claims] 1. A package to be packaged by feeding a film to the package while rotating the carriage on which the film roll is mounted and the package relative to each other, and changing the position of the carriage with respect to the package. The packaging machine that winds the film to monitor whether or not an error has occurred in the packaging machine, and when an error has occurred, has a controller that displays the location and details of the error on the display of the touch panel input device. Stretch wrapping machine. 2. The method according to claim 1, wherein the film is fed onto the package while the carriage on which the film roll is mounted and the package are relatively rotated, and the position of the carriage relative to the package is changed. A packaging machine that winds a film around the device, monitors whether or not a device abnormality has occurred, and, if an abnormality has occurred, includes a controller that supplies information on the location of the abnormality and the content of the abnormality to an output unit. A stretch wrapping machine configured to be able to transmit abnormal information to a maintenance person via a communication network.