JPH0443763B2 - - Google Patents
Info
- Publication number
- JPH0443763B2 JPH0443763B2 JP603883A JP603883A JPH0443763B2 JP H0443763 B2 JPH0443763 B2 JP H0443763B2 JP 603883 A JP603883 A JP 603883A JP 603883 A JP603883 A JP 603883A JP H0443763 B2 JPH0443763 B2 JP H0443763B2
- Authority
- JP
- Japan
- Prior art keywords
- belt conveyor
- auxiliary belt
- speed
- cement
- auxiliary
- 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
- 238000001125 extrusion Methods 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 235000012438 extruded product Nutrition 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Control Of Conveyors (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Description
【発明の詳細な説明】
本発明はセメント系押出成形体の引取方法の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a method for taking a cement extrusion molded product.
セメント系建築板材を押出成形する場合、押出
した板材をベルトコンベア上に移載して引取つて
いくことが必要である。この場合、従来において
は、ベルトコンベアを押出速度に同期して駆動す
る、いわゆる同期速度引取りが施用されている。 When extruding cement-based building boards, it is necessary to transfer the extruded boards onto a belt conveyor and take them away. In this case, conventionally, a so-called synchronous speed take-off is used in which the belt conveyor is driven in synchronization with the extrusion speed.
ところで、押出されたセメント板材がベルトコ
ンベアに接するまでの間に、その板材に作用する
内力（応力）は押出速度、引取り速度によつて影
響を受ける。而して、この間においてはセメント
は事実上、未凝結の状態にあるから、上記内力は
押出セメント製品の特性に相当の影響を与えるこ
とになる。 By the way, the internal force (stress) that acts on the extruded cement board until it comes into contact with the belt conveyor is affected by the extrusion speed and take-up speed. During this period, the cement is virtually in an unset state, so the internal forces have a considerable influence on the properties of the extruded cement product.
而るに、上記同期速度引取りの場合、上記応力
を一定範囲内におさめることができても、本来、
内力一定を意図したものでないから、その範囲は
±1.0％とばらつきが大きく、厳格には製品の品
質、特性上好ましくない。 In the case of the above-mentioned synchronous speed take-off, even if the above-mentioned stress can be kept within a certain range, the
Since the internal force is not intended to be constant, the range varies widely by ±1.0%, which is strictly speaking unfavorable in terms of product quality and characteristics.
本発明に係るセメント系押出成形体の引取方法
は、上記の点に鑑み定内力引取を可能とする方法
であり、セメント系材料を押出機で押出し、該押
出成形体を主ベルトで引取つていく方法におい
て、押出機ダイと上記の主ベルトコンベアとの間
に負荷検出器を備えた補助ベルトコンベアを設
け、該補助ベルトコンベアには、前記検出負荷を
設定値と比較する比較器、及び比較器出力を零と
するように駆動される前記補助ベルトコンベアの
駆動装置を設け、上記主ベルトコンベアを補助ベ
ルトコンベアと同一速度で駆動することを特徴と
する方法である。 In view of the above points, the method for taking off a cement-based extrusion molded article according to the present invention is a method that makes it possible to take off a fixed internal force, in which a cement-based material is extruded with an extruder, and the extrusion molded article is taken up with a main belt. In the method, an auxiliary belt conveyor with a load detector is provided between the extruder die and the main belt conveyor, the auxiliary belt conveyor includes a comparator for comparing the detected load with a set value, and a comparator. The method is characterized in that a drive device for the auxiliary belt conveyor is provided which is driven to make the output zero, and the main belt conveyor is driven at the same speed as the auxiliary belt conveyor.
以下、図面により本発明を説明する。 The present invention will be explained below with reference to the drawings.
図において、１は押出機、２は押出ダイであ
る。３は補助ベルトコンベア、４は補助コンベア
制御部である。５は主ベルトコンベアであり、駆
動装置６によつて補助ベルトコンベア３と同一速
度で駆動される。７は補助ベルトコンベア３に設
けた速度検出器であり、この検出信号が上記駆動
装置６に送入されて、主ベルトコンベア５が補助
ベルトコンベア３と同速度で走行される。 In the figure, 1 is an extruder and 2 is an extrusion die. 3 is an auxiliary belt conveyor, and 4 is an auxiliary conveyor control section. 5 is a main belt conveyor, which is driven by a drive device 6 at the same speed as the auxiliary belt conveyor 3. Reference numeral 7 denotes a speed detector provided on the auxiliary belt conveyor 3, and this detection signal is sent to the drive device 6 to cause the main belt conveyor 5 to run at the same speed as the auxiliary belt conveyor 3.
上記補助ベルトコンベア３の制御には、図に示
すように、補助ベルトコンベア３の駆動軸に負荷
検出器４１を取付け、この検出負荷を負荷設定器
４２の設定値と比較し、その比較器４３の出力を
零にするように駆動モータ４４を制御する方式と
される。 To control the auxiliary belt conveyor 3, as shown in the figure, a load detector 41 is attached to the drive shaft of the auxiliary belt conveyor 3, and this detected load is compared with a set value of a load setting device 42. The drive motor 44 is controlled so as to reduce the output to zero.
上記において、補助ベルトコンベア３は駆動モ
ータ４４によつて駆動され、またその時の駆動ト
ルクは予め製品によつて定まる値に比較器４３に
設定入力されている。 In the above, the auxiliary belt conveyor 3 is driven by the drive motor 44, and the drive torque at that time is set and input to the comparator 43 in advance at a value determined depending on the product.
なお、この設定値は押出ダイス２から主ベルト
コンベア５までの押出物の重量、即ち、押出ダイ
ス２より吐出された後成形品が補助ベルトコンベ
ア３に乗つている間の押出物の重量を勘案して定
められ、この押出物の重量が設定押出速度となつ
た時に負荷０となる設定値とされる。 Note that this setting value takes into account the weight of the extrudate from the extrusion die 2 to the main belt conveyor 5, that is, the weight of the extrudate while the molded product is on the auxiliary belt conveyor 3 after being discharged from the extrusion die 2. The extrusion speed is determined as follows, and the set value is such that the load becomes 0 when the weight of the extrudate reaches the set extrusion speed.
押出ダイス２から材料が吐出されない待機状態
の時点より、上記補助ベルトコンベア３は上記の
負荷０となる設定値で駆動される。また主ベルト
コンベア５も同期して駆動される。 From the time of the standby state in which no material is discharged from the extrusion die 2, the auxiliary belt conveyor 3 is driven at the set value at which the load is zero. The main belt conveyor 5 is also driven synchronously.
押出ダイス２から材料が吐出されその速度が設
定速度より遅い場合は補助ベルトコンベア３に成
形品が乗つた瞬間に補助ベルトコンベア３には、
その速度を減じる影響が出、これが負荷検出器４
１で検出された比較器４３で比較されて負荷が０
となる方向、即ち駆動モータ４４の速度を減じ補
助ベルトコンベアの速度を減じる方向へ制御され
る。 If the material is discharged from the extrusion die 2 and the speed is slower than the set speed, the moment the molded product is placed on the auxiliary belt conveyor 3, the auxiliary belt conveyor 3
This has the effect of reducing the speed of the load detector 4.
1 is detected by the comparator 43 and the load is 0.
In other words, the speed of the drive motor 44 is decreased and the speed of the auxiliary belt conveyor is decreased.
また押出ダイス２から吐出される材料速度が設
定速度より速い場合は補助ベルトコンベア３に成
形品が乗つた瞬間に補助ベルトコンベア３の速度
を増す影響が出、これが負荷検出器４１で検出さ
れ比較器４３で比較されて負荷が０となる方向、
即ち駆動モータ４４の速度を増し補助ベルトコン
ベアの速度を増す方向へ制御される。 In addition, if the speed of the material discharged from the extrusion die 2 is faster than the set speed, the speed of the auxiliary belt conveyor 3 will be increased the moment the molded product is placed on the auxiliary belt conveyor 3, and this will be detected by the load detector 41 and compared. The direction in which the load is 0 when compared by the device 43,
In other words, control is performed to increase the speed of the drive motor 44 and the speed of the auxiliary belt conveyor.
以上、補助ベルトコンベア３に押出材料が乗つ
た瞬間々々の負荷の影響が負荷検出器４１で検出
され、直ちにその速度に補助ベルトコンベア３の
速度が制御されてしまうので、押出成形品に内力
を生じさせないのである。 As described above, the influence of the load moment by moment when the extruded material is placed on the auxiliary belt conveyor 3 is detected by the load detector 41, and the speed of the auxiliary belt conveyor 3 is immediately controlled to that speed, so that internal force is applied to the extruded product. It does not cause
なお、主ベルトコンベア５はこの補助ベルトコ
ンベア３の速度に同期した速度に制御されるので
補助ベルトコンベア３と主ベルトコンベア５との
間では製品に内力を生じさせることはない。 Note that since the main belt conveyor 5 is controlled to a speed synchronized with the speed of the auxiliary belt conveyor 3, no internal force is generated on the product between the auxiliary belt conveyor 3 and the main belt conveyor 5.
本発明に係るセメント系押出成形体の引取方法
は、上述した通り、押出ダイスから出てくるセメ
ント成形体を、予め設定した一定の内力のもとで
引取るようにしたから、その内力に関係するセメ
ント製品の特性、例えば厚み、密度等を厳密に一
定にできる。 As described above, the method for taking off a cement-based extrusion molded article according to the present invention is such that the cement molded article coming out of the extrusion die is taken up under a preset constant internal force, so that the The properties of the cement product, such as thickness and density, can be kept strictly constant.
図面は本発明において使用する押出、引取装置
を示す説明図である。
図において、１は押出機、２は押出ダイス、３
は補助ベルトコンベア、４は制御部、５は主ベル
トコンベア、６は駆動モータ、７は速度検出器で
ある。
The drawing is an explanatory diagram showing an extrusion and drawing device used in the present invention. In the figure, 1 is an extruder, 2 is an extrusion die, and 3
4 is an auxiliary belt conveyor, 4 is a control unit, 5 is a main belt conveyor, 6 is a drive motor, and 7 is a speed detector.
Claims (1)
形体を主ベルトコンベアで引取つていく方法にお
いて、押出ダイと上記の主ベルトコンベアとの間
に負荷検出器を備えた補助ベルトコンベアを設
け、該補助ベルトコンベアには、前記検出負荷を
設定値と比較する比較器、及び比較器出力を零と
するように駆動される前記補助ベルトコンベアの
駆動装置を設け、上記主ベルトコンベアを補助ベ
ルトコンベアと同一速度で駆動することを特徴と
するセメント系押出成形体の引取方法。1. In a method of extruding a cement material with an extruder and taking the extruded product with a main belt conveyor, an auxiliary belt conveyor equipped with a load detector is provided between the extrusion die and the above-mentioned main belt conveyor, The auxiliary belt conveyor is provided with a comparator that compares the detected load with a set value, and a drive device for the auxiliary belt conveyor that is driven to make the output of the comparator zero, and the main belt conveyor is used as the auxiliary belt conveyor. A method for taking a cement-based extruded product, characterized by driving at the same speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603883A JPS59131406A (en) | 1983-01-17 | 1983-01-17 | How to collect cement extruded products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP603883A JPS59131406A (en) | 1983-01-17 | 1983-01-17 | How to collect cement extruded products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59131406A JPS59131406A (en) | 1984-07-28 |
| JPH0443763B2 true JPH0443763B2 (en) | 1992-07-17 |
Family
ID=11627469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP603883A Granted JPS59131406A (en) | 1983-01-17 | 1983-01-17 | How to collect cement extruded products |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131406A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2600978Y2 (en) * | 1992-12-28 | 1999-11-02 | 株式会社ノダ | Extruded product conveyor |
-
1983
- 1983-01-17 JP JP603883A patent/JPS59131406A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59131406A (en) | 1984-07-28 |
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