JPS61139414A - Regulation and control device for die regulating bolt - Google Patents

Abstract

PURPOSE:To control a die regulating bolt automatically by a method in which the chuck for regulating bolt is fitted onto the opposite surface to the die regulating bolt in the body of the bolt regulating control device provided with a reduction gears, and it is connected to a film thickness gauge. CONSTITUTION:The information such as film stock or stand and thickness is inputted into a input device 31. The inputted information is referenced to the standard value preliminarily storaged, and is comparatively operated at an operation part 33, thereby determining the position of a die regulating bolt 6 with necessity of regulation and the rotating direction and rotating amount of a DC motor 34, and then indicating them at an indicating part 37. An operator moves the body 21 of a bolt regulating control device to the position of a corresponding die regulating bolt 6, based on the indicated information, if thickness control is necessary. Accordingly, the limit control accuracy of average thickness of the film is heightened, and the quality of the film, the saving of raw material and the yield of the film are improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a bolt adjustment control device for adjusting and controlling a die adjustment bolt for controlling the thickness of the sheet or film in a sheet or film manufacturing line.

(Prior Art) In general, improving the thickness accuracy of a film not only improves the quality of the film, but also has the effect of saving raw materials by controlling the limits of average thickness and saving energy by improving yield.

Conventionally, the thickness of the sheet or film has been controlled in the following manner on a sheet or film production line. In other words, the measurement pattern of sheet or film thickness measured by a β-ray thickness meter or an infrared thickness meter installed on a sheet or film production line is
The thickness is controlled by displaying the distribution pattern on a display device such as a plotter or CRT, and rotating a die adjustment bolt with a special tool to adjust the lip gap of the die according to the distribution pattern displayed on the display device.

FIG. 3 is a system diagram showing a conventional sheet or film manufacturing line. In the figure, reference numeral 1 denotes an extruder, which produces resin by melting and kneading pellets 1, which are supplied via a hopper 2 and are a raw material for a sheet or film. The resin produced in the extruder 1 is extruded through the adapter 4 to the die 5, passes through the lip gap 5a of the die 5, and becomes a sheet. Note that the lip gap 5
a is determined by the adjustment amount of the die adjustment bolt 6.

The sheet-shaped resin (hereinafter referred to as film) 7 that has passed through the lip gap 5a is cooled by a casting roll 8 and then supplied to the next step via guide rolls 9a and 9b. Here, the thickness of the film 7 in the width direction is measured by a β-ray thickness gauge or an infrared thickness gauge 10 provided between the guide rails 9a and 9b, and is displayed on a display device 11 such as an X-Y plotter. Ru. Therefore, the operator selects the die adjustment bolt 6 that requires adjustment from the film thickness measurement pattern displayed on the display device 11, and directly adjusts the bolt 6 by hand to control the film thickness. There is.

[Problem that the invention seeks to solve]

However, the adjustment operation of the die adjustment bolt 6 requires relatively large force (torque) and also requires fine adjustment. Therefore, adjustment work required skill. Furthermore, since the above adjustment work had to be carried out for a long time in a high temperature and adverse environment, the workers felt extremely fatigued.

Recently, as a means to solve the above problem, the selection of adjustment bolts and the optimum adjustment amount are determined by calculating the measurement values from the thickness gauge 10, and the work robot automatically adjusts the adjustment bolts according to the determined data. Bolt adjustment devices have been developed to do this. However, the above-mentioned bolt adjustment device using a working robot is very expensive and has the problem that it takes a long time to start up operation compared to manual bolt adjustment by an experienced person.

SUMMARY OF THE INVENTION An object of the present invention is to provide a die adjustment bolt adjustment control device that can quickly and accurately automatically adjust a die adjustment bolt and can be manufactured at low cost.

(Means for Solving the Problems) The present invention is characterized by taking the following measures in order to solve the above problems and achieve the objectives. That is,
Attach a chuck for the adjustment bolt to the surface facing the die adjustment bolt of the bolt adjustment control device body equipped with a speed reduction mechanism, and
A handle for applying a predetermined amount of rotation in a predetermined direction to the adjustment bolt chuck via the deceleration mechanism is attached to the main body, and the direction and amount of rotation of this handle are controlled by the sheet or film production line provided on the sheet or film production line. A thickness meter that measures the thickness of the material, a calculation section that selects the required adjustment bolt from the measurement value of this thickness meter and a preset reference value, and calculates the optimal adjustment amount, and a calculation section that calculates the optimum adjustment amount based on the calculation result of this calculation section. and a means for rotating the handle.

[Effect]

By taking such measures, the selection of the die adjustment bolt that requires adjustment and the amount of adjustment can be automatically obtained, and
Fine adjustments can be made easily.

〔Example〕

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

Note that the same parts as in FIG. 3 are given the same reference numerals, and detailed explanations will be omitted. In Fig. 1, 21 is a reduction mechanism (not shown)
The main body of the bolt adjustment control device has a built-in bolt adjusting bolt 6, and an adjusting bolt chuck 22 that fits into the die adjusting bolt 6 is attached to the surface facing the die adjusting bolt 6. Further, a handle 24 equipped with a rotation amount indicator 23 with a reset function is attached to the opposite side of the surface on which the adjustment bolt chuck 22 is attached. The amount of rotation of the handle 24 decelerated by the amount of deceleration in the deceleration mechanism is applied to the adjustment bolt chuck 22. The reduction ratio mentioned above is determined by two conditions: the rotational torque of the die adjustment bolt 6, and the fact that the handle 24 can be easily operated with one hand and that the die adjustment bolt 6 can be finely adjusted even with rough operations. .

The bolt adjustment control device main body 21 includes a first bolt adjustment control device main body 21. It is supported on a fixed rail 27 via second displacement means 25,26. The first moving means allows movement in the direction of the arrow X in FIG. 6 axis direction). The amount of movement of the main body 21 in the X direction is determined by the dimension α at both ends of the plurality of die adjustment bolts 6 arranged on the die 5, and the amount of movement of the main body 21 in the Y direction is determined by the dimension α of both ends of the plurality of die adjustment bolts 6 arranged on the die 5.
The adjustment bolt chuck 22 is determined by the dimension β necessary for fitting the adjustment bolt chuck 22 into the head of the adjustment bolt.

FIG. 2 is a block diagram showing the configuration of a control means for automatically controlling the adjustment amount of the die adjustment bolt 6. As shown in FIG. Note that the same parts as in FIGS. 1 and 3 are given the same reference numerals. Control part 3
0, the input device 31 is composed of a keyboard or a push button switch, and is used to input information necessary for thickness control such as the raw material and standard thickness of the film to be manufactured.

Further, the profile storage circuit 32 stores ideal state data, ie, reference values, such as the raw material and reference thickness of the film, and compares this reference value with the information input to the input device 31 and performs processing as necessary. Accordingly, the reference value is outputted to the calculation section 33. The calculation unit 33 compares the measured value of the film thickness measured by the thickness gauge 10 with the reference value given from the profile storage circuit 32, and calculates information related to thickness control, that is, the required die adjustment bolt 6 that requires adjustment. and the handle 2
The direction and amount of rotation of the DC motor 34 that rotates the DC motor 4 is determined and output to the central control device 35. Note that the calculation unit 33 is supplied with a detection signal from an encoder 36 attached to the bolt adjustment control device main body 21 and detecting the rotation direction and amount of rotation of the die adjustment bolt 6 via the central control device 35. , information related to the thickness control may be determined based on this detected value.

The central control device 35 outputs an information signal related to the thickness control determined by the calculation section 33 to the display section 37, and also commands an operation based on the information related to the thickness control in response to an ON operation of a push button switch (not shown). The DC
It is provided to the motor 34. The central control device 35 also outputs an information signal from the input device 31 and a detection signal from the encoder 36 to the display section 37. The display section 37 is composed of an electronic display such as a CRT, and displays data corresponding to various signals supplied from the central processing unit 35, that is, all information necessary for thickness control.

Next, the operation of this device will be explained. The operator inputs information necessary for thickness control, such as the raw material of the film and the reference thickness, using the input device 31 while checking the input information displayed on the display section 37. Note that the display section 37 also displays the measured value of the film thickness measured by the thickness meter 10. When the input of information to the input device 31 is completed, the profile storage circuit 32
The information inputted into the profile storage circuit 32 is compared with the reference value stored in advance in the profile storage circuit 32, and the reference value corresponding to the information is selected and output to the calculation section 33. The calculation unit 33 compares and calculates the reference value and the measured value, thereby obtaining information regarding the necessity of thickness control and the position of the die adjustment bolt 6 that requires adjustment, and the position of the DC motor 34. The rotation direction and rotation amount are determined, and the calculation results are displayed on the display section 37.

Therefore, the operator knows the necessity of thickness control and the amount of adjustment from the information displayed on the display device 37.

When thickness control is necessary, the operator moves the bolt adjustment control device main body 21 to the position of the corresponding die adjustment bolt based on the information displayed on the display section 37.

That is, first, the main body 2 is moved by the first moving means 25.
1 in the X direction. At this time, the main body 21 is pulled in the Y2 direction in the figure so that the adjustment bolt chuck 22 does not come into contact with the die adjustment bolt 6. Next, the operator presses the main body 21 in the Y1 direction in the figure, fits the adjustment bolt chuck 22 to the head of the die adjustment bolt 6 while turning the handle 24, and then resets the rotation amount indicator 23. In this state, a push button switch (not shown) is operated to start thickness control. Then, the DC motor 34 is driven in response to an operation command from the central controller 35, and rotates the handle 24 by a predetermined amount in a predetermined direction. As a result, the amount of rotation of the handle 24 that has been decelerated by the deceleration in the deceleration mechanism in the bolt adjustment control device main body 21 is supplied to the adjustment bolt chuck 22, and the adjustment bolt chuck 22 is connected to the fitted die. Rotate the adjustment bolt 6.

At this time, the rotation amount indicator 23 has a handle 24.
The amount of rotation is displayed.

In this way, the adjustment of the die adjustment bolt 6 is automatically performed.

The adjustment m is detected by the encoder 36, displayed on the display section 37, and fed back to the calculation section 33, and becomes data for determining the next thickness control m threat.

When the adjustment of the die adjustment bolt 6 is completed, pull back the bolt adjustment control device main body 21 in the Y2 direction in FIG. 1 to disengage the adjustment bolt chuck 22 and the die adjustment bolt 6. Thereafter, if other die adjustment bolts 6 need to be adjusted, the above operation is repeated.

Thus, according to this embodiment, the selection and adjustment amount of the die adjustment bolt 6 that requires adjustment can be automatically obtained, and the adjustment of the die adjustment bolt is also performed by the DC motor 34, so that the operator can use the input device 31 It is only necessary to perform simple operations such as inputting data to the main body 21 and moving the bolt adjustment control device main body 21 in the X direction or the Y direction, and not only does it require no skill, but the working time is shortened. Further, since the amount of adjustment is expanded in proportion to the reduction ratio of the reduction mechanism built in the main body 2, fine adjustment can be easily and reliably performed by the DC motor 34. Therefore, the limit control @accuracy of the average thickness of the film is improved, and energy savings are achieved by improving the quality of the film, saving raw materials, and improving yield. In general, it can be manufactured at a much lower cost than conventional bolt adjustment devices that use working robots.

Note that the present invention is not limited to the above embodiments. For example, in the embodiment described above, the hand IL, 24 for adjusting the die adjustment bolt 6 is rotated by the DC motor 34, but this DC motor 34 is removed and the handle 24 is rotated by hand. It's okay. In this case, the operating force of the handle 24 is reduced in inverse proportion to the reduction ratio by the reduction mechanism m of the bolt adjustment control device main body 21. Therefore, adjustment can be made with less force than when adjusting by directly turning the die adjustment bolt 6 by hand as in the past.
Easy to operate with one hand. Further, the fine adjustment of 14M can be easily performed because the amount of adjustment is expanded in proportion to the reduction ratio of the reduction mechanism as described above. Further, as in the embodiment described above, the adjustment work can be completed in a short time, and the cost can be further reduced since the DC motor 34 is not required.

It goes without saying that various other modifications can be made without departing from the gist of the present invention.

(Effects of the Invention) As detailed above, the present invention provides an adjustment bolt chuck that is attached to the die adjustment bolt opposing surface of a bolt adjustment control device body equipped with a deceleration mechanism, and a deceleration mechanism that is attached to the adjustment bolt chuck. A handle that provides a predetermined amount of rotation in a predetermined direction is attached to the main body, and the direction and amount of rotation of the handle are determined by a thickness gauge installed in the sheet or film production line that measures the thickness of the sheet or film; It consists of a calculation unit that selects the length adjustment bolt based on the measurement value of the thickness gauge and a preset reference value and calculates the optimum adjustment amount, and a means for rotating the handle based on the calculation result of this calculation unit. This is controlled by a control means.

Therefore, according to the present invention, the selection and adjustment amount of the die adjustment bolt that needs adjustment can be automatically obtained, and fine adjustment can be easily performed, so the die adjustment bolt can be automatically adjusted quickly and accurately. Furthermore, it is possible to provide a die adjustment bolt adjustment control device that can be manufactured at low cost.

[Brief explanation of the drawing]

1 and 2 are diagrams showing one embodiment of the present invention, with FIG. 1 being a perspective view showing the configuration, and FIG. 2 being a block diagram showing the configuration of the control section. FIG. 3 is a system diagram showing a conventional sheet or film manufacturing line. 5...Die, 6...Die adjustment bolt, 10...Thickness gauge, 21...Bolt adjustment control device main body, 22...
Adjustment bolt chuck, 23... Rotation amount indicator, 24... Handle, 25.26... First. Second moving means, 27... Fixed rail, 30... Control unit,
33... Arithmetic unit, 34... DC motor, 34...
Encoder, 38...display section. Applicant's sub-agent Patent attorney Takehiko Suzue Figure 1 Figure 3 Procedural amendment opening 2ゎ 6 Mayuzumi, 2. OB Director of the Patent Office Michibe Uga 1, Indication of the case Patent application No. 59-261501 @ 2, Name of the invention Die adjustment bolt adjustment system m + device 3, Person making the amendment Relationship to the case Patent applicant (620) Mitsubishi Heavy Industries, Ltd. (and 1 other person) 4. Sub-Agent 7. - Contents of amendment (1) The word "lip" on page 3, line 11 of the specification is corrected to "lip". (2) "Guide rail" on page 3, line 17 of the specification is corrected to "guide roll." (3) In the 12th line of page 8 of the specification, the phrase "arithmetic unit 33" is corrected to "arithmetic circuit 33."<4> wAmvs, page 8, line 13 +7) r Performance IHIIS33 J Correct the word "Arithmetic circuit 33". (5) "Arithmetic unit 33" on page 8, line 20 of the specification is corrected to "arithmetic circuit 33." (6) In the 7th line of page 9 of the specification, the phrase “operating section 33” has been replaced with “
Arithmetic circuit 33" is corrected. (7) "Display section 37" on page 9, line 8 to line 9 of the specification
" has been corrected to read "display device 37." (8) Ming 18! On page 9, line 14, "display unit 37" is corrected to "display device 37." (9) Akira [Corrected "Display unit 37" on page 9, line 15 of the letter to read "Display device 37." (10) "Display unit 37" in the second line of page 10 of Book 1B is corrected to "display device 37." (11) "Display unit 37" in page 10, item 16 of the specification is corrected to "display device 37." (12) In the 10th line of page 10 of the specification, the phrase "operating section" is corrected to "arithmetic circuit."<13) Light 111m, page 10, line 11, “Computation unit 33
" has been corrected to read "arithmetic circuit 33." (14) "Display section 37" on page 10, line 16 of the specification is corrected to "display device 37." (15) "Display unit 37" in the first line of page 11 of the specification is corrected to "display device 37." (16) In the fifth line of page 12 of the specification, "display unit 37" is corrected to "display device 37." (17) In the 5th line of page 12 of the specification, the term “operating unit” has been replaced with “
"Arithmetic circuit" is corrected. (18) The word "operator" on page 11, line 17 of the specification is corrected to "operator." (19) On page 15, line 19 of the specification, the phrase "33...operating unit" is corrected to "33...operating circuit." (20) On page 15, line 20 of the specification, [34...encoder] is corrected to "36...encoder". (21) Clarification I [lI, page 15, line 20 to page 16, line 1, "38...display unit" is corrected to "37...display device." (22) Figure 3 of the drawing is corrected as shown in the attached sheet.

Claims (1)

[Claims] A die adjustment bolt adjustment control device that adjusts and controls a die adjustment bolt that controls the thickness of the sheet or film in a sheet or film production line, the main body of the bolt adjustment control device having a speed reduction mechanism, and the die adjustment bolt of the main body facing the die adjustment bolt. An adjustment bolt chuck attached to a surface, a handle attached to the main body so as to give a predetermined rotation amount in a predetermined direction to the adjustment bolt chuck via the speed reduction mechanism, and a rotation direction and rotation amount of the handle. and a control means for controlling the thickness of the sheet or film, and the control means includes a thickness gauge provided in the sheet or film production line to measure the thickness of the sheet or film, and a measurement value of the thickness gauge and a preset reference value. 1. A die adjustment bolt adjustment control device comprising: a calculation unit for selecting a required adjustment bolt from a die and calculating an optimum adjustment amount; and means for rotating the handle based on the calculation result of the calculation unit.