JPS5823313B2 - How to detect the remaining amount of roll paper - Google Patents
How to detect the remaining amount of roll paperInfo
- Publication number
- JPS5823313B2 JPS5823313B2 JP2381880A JP2381880A JPS5823313B2 JP S5823313 B2 JPS5823313 B2 JP S5823313B2 JP 2381880 A JP2381880 A JP 2381880A JP 2381880 A JP2381880 A JP 2381880A JP S5823313 B2 JPS5823313 B2 JP S5823313B2
- Authority
- JP
- Japan
- Prior art keywords
- roll paper
- remaining amount
- pressure sensor
- hydraulic cylinder
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Description
【発明の詳細な説明】
この発明は重量を有する大型ロール紙の長さ残量を検出
する検出方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a detection method for detecting the remaining length of a heavy large roll paper.
たとえば、段ボール紙を形成する場合に使用されるロー
ル紙は４ｋｒｎ程に巻掛けられており、段ボール紙を形
成するときにはこのロール紙より段ボール紙の必要量に
対応して繰出して使用される。For example, roll paper used to form corrugated paperboard is wound around 4 krn, and when forming corrugated paperboard, the required amount of corrugated paper is fed out from this roll paper and used.
段ボール箱の注文があった場合、一般には箱の形や量に
対応させて段ボール紙を形成される屍で、ロール紙の長
さ残量を把握することは、注文の段ボール箱をまかなう
量の段ボール紙が形成できるかの判断、あるいは段ボー
ル紙の上下の紙と中間の波形にした段紙とは使用量が異
なるので所定量の段ボール紙が形成できるかの判断に極
めて重要である。When an order is placed for a cardboard box, the corrugated paper is generally formed according to the shape and quantity of the box, and knowing the remaining length of the roll paper is a way to determine the amount that will cover the ordered cardboard box. This is extremely important in determining whether a corrugated paperboard can be formed or whether a predetermined amount of corrugated paper can be formed, since the amount of paper used at the top and bottom of the corrugated paperboard and the corrugated paper in the middle are different.
従来ロール紙の残量検出はロール紙の直径を計測して、
その計測値で長さを割出していたが、この方法によると
きは、ロール紙の巻きの硬さによって大きな誤差が生じ
、また計測の誤差によっても長さに大きな誤差が生じ、
正確な長さ残量が得られなかった。Conventionally, the remaining amount of roll paper was detected by measuring the diameter of the roll paper.
The length was determined using the measured value, but when using this method, large errors occur depending on the hardness of the roll paper, and large errors in length also occur due to measurement errors.
Accurate remaining length could not be obtained.
そこでこの発明はロール紙の長さ残量を正確に得ること
のできるロール紙の残量検出方法の提供を目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for detecting the remaining amount of roll paper by which the length of the remaining amount of roll paper can be accurately obtained.
そしてこの発明によれば、ロール紙を回転可能に保持す
るために設けられた支持フレームの昇降用油圧シリンダ
のこれに給油するポートにシリンダ内の圧力変化に対応
した信号を出力する圧力センサを接続したので、ロール
紙の長さ残量は圧力センサによって重さの変化として簡
単に取出すことができ、しかもこの重さの変化は電気信
号として取出すことができ、また重さの変化とロール紙
の長さ残量とは比例するので、圧力センサの出力信号に
基づいて長さ残量を検出することが電気的に簡単となり
、誤差なくロール紙の長さ残量を検出することかで゛き
る。According to this invention, a pressure sensor that outputs a signal corresponding to pressure changes within the cylinder is connected to the oil supply port of the lifting hydraulic cylinder of the support frame provided to rotatably hold the roll paper. Therefore, the remaining length of the roll paper can be easily obtained as a change in weight using a pressure sensor, and this change in weight can also be obtained as an electrical signal. Since it is proportional to the remaining length, it is electrically easy to detect the remaining length based on the output signal of the pressure sensor, and the remaining length of the roll paper can be detected without error. .
このような特徴を有するこの発明の一実施例を以下図面
に基づいて詳述する。An embodiment of the present invention having such characteristics will be described in detail below with reference to the drawings.
図面は段ボール紙を形成するためのロール紙を保持する
ロール紙支持装置におけるロール紙の残量検出装置を示
し、第１図において、ロール紙１は支持フレーム２に回
転可能に保持されるが、この支持フレーム２は左右一対
が設けられ、それらの基部は軸３に枢着されていて、そ
れぞれ油圧シリンダ４によって昇降される。The drawing shows a roll paper remaining amount detection device in a roll paper support device that holds roll paper for forming corrugated paperboard. In FIG. 1, roll paper 1 is rotatably held by a support frame 2; A pair of left and right support frames 2 are provided, the bases of which are pivotally connected to a shaft 3, and are raised and lowered by hydraulic cylinders 4, respectively.
そしてロール紙１は適宜の段ボール紙形成部に繰出され
る。The roll paper 1 is then fed out to an appropriate corrugated paper forming section.
第２図は油圧シリンダ４の油圧回路を示し、このシリン
ダ４は片ロンド形複動シリンダで構成され、５は電磁操
作ＡＢＲ接続４ポート３位置切換弁、６はパイロットチ
ェックバルブ、７はスロットルチェックバルブ、８は圧
力センサ、９はＩＪ ＩＪ−フバルブ、１０はポンプで
ある。Fig. 2 shows the hydraulic circuit of the hydraulic cylinder 4. This cylinder 4 is composed of a single-rod double-acting cylinder, 5 is an electromagnetic operation ABR connection 4 port 3 position switching valve, 6 is a pilot check valve, and 7 is a throttle check valve. 8 is a pressure sensor, 9 is an IJ valve, and 10 is a pump.
前述の切換弁６によってＡポートに圧油が供給されると
シリンダ４は支持フレーム２を上昇し、また中央位置に
切換えられると支持フレーム２の保持位置を維持し、さ
らにＢポートに圧油が供給されると、支持フレーム２は
下降する。When pressure oil is supplied to the A port by the aforementioned switching valve 6, the cylinder 4 moves up the support frame 2, and when switched to the center position, the support frame 2 is maintained in the holding position, and furthermore, pressure oil is supplied to the B port. Once supplied, the support frame 2 is lowered.
支持フレーム２が上昇させられてその位置で保持された
ときは前述の圧力センサ８はシリンダ４内の圧力を検出
するが、この圧力センサ８は周知の電気式圧力検出器で
あって圧力によってインピーダンス（抵抗面）が変化す
るのをとらえてアラ−ログ信号で出力するものであり、
たとえば圧力セルまたは圧電素子によって構成されてい
る。When the support frame 2 is raised and held at that position, the pressure sensor 8 described above detects the pressure inside the cylinder 4, but this pressure sensor 8 is a well-known electric pressure sensor, and the impedance is determined by the pressure. It captures changes in the resistance (resistance surface) and outputs it as an alarm log signal.
For example, it is constituted by a pressure cell or a piezoelectric element.
勿論他の圧力検出器で構成するもよい。Of course, other pressure detectors may be used.
第３図はロール紙の残量検出回路を示し、前述の油圧シ
リンダ４のＡポート側の圧力はロール紙１の重さが減少
することに比例して減少する。FIG. 3 shows a circuit for detecting the amount of remaining roll paper, and the pressure on the A port side of the hydraulic cylinder 4 described above decreases in proportion to the weight of the roll paper 1 decreasing.
そのために圧力センサ８はシリンダ４内の圧力に対応し
た信号を出力することになり、またロール紙１の重さを
変換した信号となる。Therefore, the pressure sensor 8 outputs a signal corresponding to the pressure inside the cylinder 4, and also a signal obtained by converting the weight of the roll paper 1.
さらに圧力センサ８の圧力検出信号はアナログ信号によ
って出力されるので、Ａ／Ｄ変換器１１はこれをディジ
タル信号に変換し、数置変換回路１２はディジタル。Furthermore, since the pressure detection signal of the pressure sensor 8 is output as an analog signal, the A/D converter 11 converts this into a digital signal, and the numerical value conversion circuit 12 is digital.
信号による重さのデータをロール紙１の長さのデータに
変換してこれを数置のデータにして出力し、表示器１３
はこれを長さの数置として表示する。The weight data from the signal is converted into length data of the roll paper 1, which is output as numerical data and displayed on the display 13.
prints this as a length number.
なお前述の数置変換回路１２はマイクロプロセッサによ
って構成される。Note that the above-mentioned numeric conversion circuit 12 is constituted by a microprocessor.
このように構成したロール紙支持装置はロール紙１が使
用されることによって重量が減少するために、油圧シリ
ンダ４のＡポート側の圧力が低下し、この圧力を圧力セ
ンサ８が検出する。Since the weight of the thus configured roll paper support device is reduced by using the roll paper 1, the pressure on the A port side of the hydraulic cylinder 4 decreases, and the pressure sensor 8 detects this pressure.
そして圧力センサ８の圧力検出信号すなわちロール紙１
の重さのデータは数置変換回路１２によって長さのデー
タに変換され、これが数置で表示器１３に表示されるの
で、ロール紙１の長さ残量を数置で把握することができ
る。Then, the pressure detection signal of the pressure sensor 8, that is, the roll paper 1
The weight data is converted into length data by the number conversion circuit 12, and this is displayed in number on the display 13, so the remaining length of the roll paper 1 can be grasped in number. .
なお上述の実施例では圧力センサ８を油圧シリンダ４の
Ａポート側に接続したがＢポート側に設けるもよい。In the above embodiment, the pressure sensor 8 is connected to the A port side of the hydraulic cylinder 4, but it may be provided to the B port side.
図面はこの発明の一実施例を示し、第１図はロール紙支
持装置の側面図、第２図はシリンダの油圧回路図、第３
図はロール紙の残量検出回路ブロック図である。
１・・・・・・ロールＬ ２・・・・・・支持フレーム
、４・・・・・・油圧シリンダ、８・・・・・・圧力セ
ンサ、１１・・・・・・Ａ／Ｄ変換器、１２・・・・・
・数置変換回路、１３・・・・・・表示器。The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of the roll paper support device, Fig. 2 is a hydraulic circuit diagram of the cylinder, and Fig. 3 is a hydraulic circuit diagram of the cylinder.
The figure is a block diagram of a circuit for detecting the remaining amount of roll paper. 1... Roll L 2... Support frame, 4... Hydraulic cylinder, 8... Pressure sensor, 11... A/D conversion Vessel, 12...
・Numerical conversion circuit, 13...Display device.
Claims (1)
保持し、前記油圧シリンダ内の圧力変化に対応した信号
を出力する圧力センサを前記油圧シリンダの給油するポ
ートに接続し、この圧カセンザの出力信号に基づいてロ
ール紙の長さ残量を検出するロール紙の残量検出方法。1. The roll paper is held by a support frame that is raised and lowered by a hydraulic cylinder, and a pressure sensor that outputs a signal corresponding to pressure changes in the hydraulic cylinder is connected to the lubricating port of the hydraulic cylinder, and the output signal of the pressure sensor is connected to the oil supply port of the hydraulic cylinder. A roll paper remaining amount detection method that detects the remaining amount of roll paper based on the length of the roll paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2381880A JPS5823313B2 (en) | 1980-02-25 | 1980-02-25 | How to detect the remaining amount of roll paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2381880A JPS5823313B2 (en) | 1980-02-25 | 1980-02-25 | How to detect the remaining amount of roll paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56122759A JPS56122759A (en) | 1981-09-26 |
| JPS5823313B2 true JPS5823313B2 (en) | 1983-05-14 |
Family
ID=12120926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2381880A Expired JPS5823313B2 (en) | 1980-02-25 | 1980-02-25 | How to detect the remaining amount of roll paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5823313B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06260507A (en) * | 1993-03-05 | 1994-09-16 | Mitsubishi Electric Corp | Semiconductor device and its manufacturing method |
-
1980
- 1980-02-25 JP JP2381880A patent/JPS5823313B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56122759A (en) | 1981-09-26 |
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