JP3684492B2 - Automatic widening device for transverse stretching equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic tentering apparatus for a horizontal stretching apparatus, and more particularly to an automatic tentering apparatus for a horizontal stretching apparatus that can easily and in a short time set a transverse stretching profile of the lateral stretching apparatus.
[0002]
[Prior art]
FIG. 18 is a configuration diagram of an example of a transverse stretching apparatus.
The lateral stretching device YE includes a clip C that grips both lateral ends of the film F, a rail R that guides the clip C traveling in the direction of the arrow in the figure, and plates Pa and Pb that support the rail R. And a shaft S in which the plates Pa and Pb are screwed together, and a motor M for rotating the shaft S.
The rail R can be bent like a joint at each of the plates Pa and Pb. Further, the direction of the screw of the shaft portion to which the plate Pa is screwed and the direction of the screw of the shaft portion to which the plate Pb is screwed are reversed. For this reason, when the shaft S is rotated forward by the motor M, the interval W between the plates Pa and Pb is increased, and the interval between the rails R is increased. Moreover, if it rotates reversely, the space | interval W of plates Pa and Pb will become small, and the space | interval of the rail R will become narrow.
Therefore, the gaps W, W,... Of the plates Pa, Pb in the shafts S, S,... Aligned along the traveling direction of the clip C are adjusted in order to increase the clip C holding the film F to the rail. If it runs along R, the lateral width of the film F can be stretched (in FIG. 18, the lateral width is stretched from FWi to FWo).
[0003]
FIG. 19 is an explanatory diagram showing a range in which the rail R can be bent in the plate Pa.
(A) has shown the range which can bend the rail R in the plate Pa of the shaft S of the shaft number 4 for example. Only pre-bent line of extension Ae of the rail R ₃ entering the plate Pa bias angle φ as a reference line As, when the angle viewed rails R ₄ exiting from the plate Pa and _{β 4, B ≧ | β 4} | Is an acceptable range. When the rail R bends to the limit of the allowable range, the limit switch LS stops the further rotation of the motor M and an alarm is issued.
(B) shows, for example, a range in which the rail R can be bent in the plate Pa of the shaft S with the shaft number 8. A difference from (a) is that the bias angle φ is added in the opposite direction.
(C) has shown the range which can bend the rail R in the plate Pa of the shaft S of the shaft numbers 2, 3, 5-7, 9-15, for example. A difference from (a) and (b) is that the bias angle φ = 0.
[0004]
Conventionally, when setting the transverse direction stretching profile of the transverse stretching device YE, the operator manually rotates the motor M of each shaft S one by one to set the interval W between the plates Pa and Pb. It was.
[0005]
[Problems to be solved by the invention]
However, it is troublesome for the operator to set the interval W between the plates Pa and Pb by manually rotating the motor M of each shaft S one by one, and it takes a long time to complete the setting. was there.
Therefore, an object of the present invention is to provide an automatic tentering apparatus that can easily and in a short time set the transverse direction stretching profile of the transverse stretching apparatus.
[0006]
[Means for Solving the Problems]
In the first aspect, the present invention provides target value setting means (13-15, 24-26) for the operator to set the lateral width of each shaft (S) of the transverse stretching apparatus (YE), and the operator Setting propriety determination means (24) for determining whether or not the target value set by the operator is appropriate, and the motor of each shaft so as to achieve each target value when the target value set by the operator is appropriate for each shaft Provided is an automatic tentering apparatus (100) for a horizontal stretching apparatus, characterized by comprising motor driving means (24, 30) for outputting drive signals to (M).
In the automatic tentering apparatus (100), when the operator sets the target value of the lateral width of each shaft (S) of the lateral stretching apparatus (YE), the suitability of the target value is automatically determined and If the target value is appropriate, the motor (M) of each shaft is driven to change the transverse stretching profile setting. Therefore, since the operator only needs to perform the target value setting operation, the operation becomes simple and easy. Further, since the motor (M) is automatically driven, the time until the setting is completed can be shortened.
[0007]
In a second aspect, the present invention is the automatic tentering apparatus (100) configured as described above, wherein the setting propriety determining means (24) is a target value for the shaft immediately before the target shaft by W1, a target shaft. The target value of W2 is the target value at the shaft immediately after the target shaft, W3 is the rail length between the target shaft and the shaft immediately before it, and the rail length between the target shaft and the shaft immediately after it is L2. When L2, the bias angle is φ, and the allowable angle width is B,
B ≧ | sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ |
Provided is an automatic widthening device (100) for a horizontal stretching device, characterized in that it is determined to be appropriate when it is satisfied and is determined to be inappropriate when it is not satisfied.
FIG. 17 shows the relationship between W1, W2, W3, L1, L2, φ and B. Further, Ac is a center line passing through the center between the plates Pa and Pb, Ap is an auxiliary line passing through the plate Pa and parallel to the center line Ac, β is an angle of the rail R2 viewed from the reference line As, and β ′ is an auxiliary line. The angle β ′ of the extension line Ae viewed from Ap is the angle of the rail R2 viewed from the auxiliary line Ap. At this time, the following equation is established.
β = -β '+ β "-φ
−β ′ = sin ⁻¹ {0.5 (W1-W2) / L1}
β ”= sin ⁻¹ {0.5 (W3-W2) / L2}
Therefore,
β = sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ
Here, since B ≧ | β | is an allowable range,
B ≧ | sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ |
It becomes. Therefore, it is possible to determine whether or not the target value is appropriate by the above formula.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.
FIG. 1 is a configuration diagram illustrating an automatic tentering apparatus of a transverse stretching apparatus according to an embodiment of the present invention.
This automatic tentering apparatus 100 includes a machine-side operation panel 10 provided for each shaft of the transverse stretching apparatus YE, a main controller 20 that centrally manages all the machine-side operation panels 10, and a motor M for each shaft. And a motor panel 30 to be driven.
The machine-side operation panel 10 reads the signal from the limit switch LS of each shaft and the signal from the rotation detector pm of the motor M, and sends them to the main controller 20. The main controller 20 transfers the signal from the limit switch LS of each shaft and the signal from the rotation detector pm of the motor M sent from the machine-side operation panel 10 to the motor control panel 30.
[0009]
FIG. 2 is a configuration diagram of the machine-side operation panel 10.
The machine-side operation panel 10 includes an interface unit 11 connected to the limit switch LS and the rotation detector pm, a communication unit 12 for communicating with the main controller 20, an arithmetic processing unit 13 such as a microprocessor, a message, and the like Is displayed, and an operation unit 15 for an operator to input a command or the like is provided.
[0010]
FIG. 3 is a configuration diagram of the main controller 20.
The main controller 20 includes an operation panel communication unit 21 for communicating with each machine-side operation panel 10, a motor panel communication unit 22 for communicating with the motor panel 30, and a host computer for communicating with a host computer. A communication unit 23, an arithmetic processing unit 24 such as a microprocessor, a display unit 25 for displaying a message and the like, and an operation unit 26 for an operator to input a command and the like.
[0011]
FIG. 4 is a configuration diagram of the motor panel 30.
The motor panel 30 includes a communication unit 31 for communicating with the main controller 20, an arithmetic processing unit 32 such as a microprocessor, and a motor driver 33 for driving each motor M.
[0012]
Next, operations and operations using the machine-side operation panel 10 will be described with reference to FIGS.
FIG. 5 is a main menu screen on the display unit 14 of the machine-side operation panel 10.
The “current value” represents the actual distance between the plates Pa and Pb. The “target value” represents a target value set by the operator. Since the change in the previous transverse stretching profile setting has been completed, the current value matches the target value. When changing the target value, the operator touches the target setting icon. Then, the target value setting screen shown in FIG. 6 is displayed.
[0013]
FIG. 6 is a target value setting screen.
“Target value” represents a value input by the operator. Since the numeric keypad icon is displayed, the operator touches the numeric keypad icon and inputs a value. After entering the value, the operator touches the setting icon. Then, the target value is transmitted to the main controller 20.
The main controller 20 that has received the target value from the machine-side operation panel 10 calculates whether or not the following expression is established by the arithmetic processing unit 24.
B ≧ | sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ |
In the above equation, the received target value is W2. W1 and W3 search the data table storing the current value of the width W of each shaft by using the axis number of the machine-side operation panel 10 that has transmitted the target value as a key, and take out the value. The data table is automatically created or updated every time a signal from the rotation detector pm of each motor M sent from the machine-side operation panel 10 is received. Since L1, L2, and φ are fixed values, they are set in advance.
[0014]
The main control device 20 responds to the machine-side operation panel 10 that has transmitted the target value that “the target value is inappropriate” if the above formula does not hold, and if the above formula holds, the “target value” Is “appropriate”. The machine-side operation panel 10 that has received the response that “the target value is inappropriate” becomes the target value setting screen of FIG. On the other hand, the machine-side operation panel 10 that has received the response that “the target value is appropriate” becomes the main menu screen of FIG.
[0015]
On the target value setting screen of FIG. 7, a message indicating that the target value is inappropriate is displayed. The operator who has seen this re-enters the target value as shown in FIG. If the target value in FIG. 8 is appropriate, the main menu screen in FIG. 9 is displayed.
[0016]
When the operator touches the start icon on the main menu screen in FIG. 9, a start command is transmitted to the main controller 20.
The main controller 20 that has received the start command from the machine-side operation panel 10 transmits the axis number, motor start command, and target value of the machine-side operation panel 10 that has transmitted the start command to the motor panel 30.
The arithmetic processing unit 32 of the motor panel 30 that has received the axis number, the motor start command, and the target value compares the current width W of the shaft corresponding to the axis number with the target value, and rotates forward so as to approach the target value. Or reverse rotation, a command is sent to the motor driver 33 corresponding to the axis number, and the motor driver 33 rotates the corresponding motor M forward or backward. When the current width W of the shaft matches the target value, the rotation of the motor M is stopped. The rotation of the motor M is also stopped when a signal for detecting the rail R is received from the limit switch LS.
[0017]
FIG. 10 is a main menu screen when the current width W of the shaft matches the target value, that is, when the change of the transverse direction stretching profile setting is completed.
The current value matches the target value.
As described above, it is possible to easily and individually change the width W of each shaft S using the machine-side operation panel 10.
The manual adjustment icon is used when the operator manually rotates the motor M as in the conventional case.
[0018]
Next, operations and operations using the main controller 20 will be described with reference to FIGS.
FIG. 11 is an operation state screen on the display unit 25 of the main controller 20.
“Execution” is “complete” when the current value of each shaft S matches the target value, and “not” when it does not match. “Alarm” is displayed when a signal for detecting the rail R is received from the limit switch LS of the shaft. When changing the target value, the operator touches the target setting icon. Then, the target value setting screen shown in FIG. 12 is displayed.
[0019]
FIG. 12 is a target value setting screen.
“Target value” represents a value input by the operator. “Setting availability” indicates whether the target value is appropriate or inappropriate. The operator touches the axis number icon of the shaft for which the target value is to be set, and then touches the numeric keypad icon to input the value. After entering the value, the operator touches the setting icon. Then, the arithmetic processing unit 24 calculates whether or not the following equation is established.
B ≧ | sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ |
In the above equation, the input target value is W2. W1 and W3 search the data table using the axis number to which the target value is input as a key and take out the value. Since L1, L2, and φ are fixed values, they are set in advance.
The arithmetic processing unit 24 displays “inappropriate” in the “setting availability” of the axis number to which the target value is input if the above expression is not established, and displays “appropriate” if the above expression is established. If even one “improper” is displayed, a message indicating that the target value is inappropriate is also displayed. The operator who has seen this re-enters the target value as shown in FIG.
[0020]
When all target values are appropriate as shown in the target value setting screen of FIG. 13, if a set of target values is to be saved, the file icon is touched. Then, the file screen shown in FIG. 14 is displayed.
[0021]
If a desired file is selected by touching a file number icon on the file screen of FIG. 14 and then a save icon is touched, a set of target values is stored in the file. Thereafter, the target setting icon is touched to return to the target value setting screen of FIG.
The “file name” and “content” in the file screen are set by editing the file on the host computer.
[0022]
When the file icon is touched on the target value setting screen of FIG. 12, the file screen shown in FIG. 14 is displayed, so that a desired file is selected by touching the file number icon, then the call icon is touched, and then the target If a setting icon is touched, a target value setting screen in which a set of target values stored in the file is set at once can be displayed.
[0023]
When the operation state icon is touched on the target value setting screen of FIG. 13, the operation state screen of FIG. 15 is displayed.
When the operator touches the start icon on the operation state screen of FIG. 15, the arithmetic processing unit 24 continuously transmits each axis number, a motor start command, and a target value to the motor panel 30.
The arithmetic processing unit 32 of the motor panel 30 that continuously receives each axis number, motor start command, and target value compares the current width W of the shaft corresponding to each axis number with the target value, and sets the target value. Whether the rotation is forward or reverse is determined so as to approach, a command is sent to the motor driver 33 corresponding to each axis number, and the corresponding motor M is rotated forward or reverse by the motor driver 33. When the current width W of each shaft matches the target value, the rotation of the motor M is stopped. Thereby, all the shafts S can be driven substantially simultaneously. In addition, when the signal which detected the rail R is received from either of the limit switches LS, rotation of all the motors M is stopped.
[0024]
FIG. 16 is an operation state screen when the current width W of all the shafts matches the target value, that is, when the change in the transverse direction stretching profile setting is completed.
The current value and the target value all match, and “execution” is “completed”.
As described above, the main controller 20 can be used to easily and substantially simultaneously change the setting of the width W of all the shafts S in a short time.
[0025]
【The invention's effect】
According to the automatic widthening device (100) of the horizontal stretching device of the present invention, when the target value of the horizontal width at each shaft (S) of the horizontal stretching device (YE) is set, the suitability of the target value is automatically determined. If the target value of each shaft is appropriate, the motor (M) of each shaft is driven to change the setting of the transverse stretch profile, so that the operator only needs to set the target value. Easy and easy. In addition, since the motor (M) is automatically driven, the time required to complete the setting can be shortened.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of an automatic tentering apparatus (100) of a transverse stretching apparatus according to an embodiment of the present invention.
FIG. 2 is a configuration diagram of a machine-side operation panel (10).
FIG. 3 is a block diagram of a main controller (20).
FIG. 4 is a configuration diagram of a motor panel (30).
FIG. 5 is a view showing an example of a main menu screen on the display unit (14) of the machine-side operation panel (10).
FIG. 6 is a view showing an example of a target value setting screen on the display unit (14) of the machine-side operation panel (10).
FIG. 7 is another exemplary view of a target value setting screen on the display unit (14) of the machine-side operation panel (10).
FIG. 8 is still another example of a target value setting screen on the display unit (14) of the machine-side operation panel (10).
FIG. 9 is another exemplary view of a main menu screen on the display unit (14) of the machine-side operation panel (10).
FIG. 10 is still another example of a main menu screen on the display unit (14) of the machine-side operation panel (10).
FIG. 11 is an exemplary diagram showing an operation state screen in the display unit (25) of the main control device (20).
FIG. 12 is a view showing an example of a target value setting screen on the display unit (25) of the main controller (20).
FIG. 13 is another exemplary view of a target value setting screen on the display unit (25) of the main controller (20).
FIG. 14 is a view showing an example of a file screen on the display unit (25) of the main controller (20).
FIG. 15 is another exemplary view of an operation state screen in the display unit (25) of the main controller (20).
FIG. 16 is another exemplary view of an operation state screen in the display unit (25) of the main control device (20).
FIG. 17 is an explanatory diagram showing the basis of an expression for determining whether or not a target value is appropriate.
FIG. 18 is a configuration diagram of an example of a transverse stretching apparatus (YE).
FIG. 19 is an explanatory diagram showing a range in which the rail (R) can be bent.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 100 Automatic extending | stretching apparatus of a horizontal stretching apparatus 10 Machine side operation panel 13 Operation processing part 14 Display part 15 Operation part 20 Main controller 24 Operation processing part 25 Display part 26 Operation part 30 Motor panel 32 Operation processing part 33 Motor driver YE Horizontal Stretcher M Motor S Shaft

Claims (2)

Target value setting means (13-15, 24-26) for the operator to set the lateral width of each shaft (S) of the transverse stretching device (YE) and whether the target value set by the operator is appropriate And a drive signal is output to the motor (M) of each shaft so as to achieve each target value when the target value set by the operator is appropriate for each shaft. An automatic tentering device (100) for a transverse stretching device, comprising motor driving means (24, 30). The automatic setting device (100) according to claim 1, wherein the setting suitability determination means (24) is configured such that the target value at the shaft immediately before the target shaft is W1, the target value at the target shaft is W2, and the target value is measured. W3 is the target value of the shaft immediately after the shaft to be operated, L3 is the rail length between the target shaft and the shaft immediately before it, L2 is the rail length between the target shaft and the shaft immediately after it, φ is the bias angle φ, When the allowable angular width is B,
B ≧ | sin ⁻¹ {0.5 (W1-W2) / L1} + sin ⁻¹ {0.5 (W3-W2) / L2} −φ |
An automatic tentering apparatus (100) for a transverse stretching apparatus, wherein it is determined to be appropriate when satisfying, and is determined to be inappropriate when not satisfying.

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