JP4024430B2 - Machine-based thermal strain prevention device for warp knitting machines - Google Patents

Machine-based thermal strain prevention device for warp knitting machines Download PDF

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JP4024430B2
JP4024430B2 JP18115899A JP18115899A JP4024430B2 JP 4024430 B2 JP4024430 B2 JP 4024430B2 JP 18115899 A JP18115899 A JP 18115899A JP 18115899 A JP18115899 A JP 18115899A JP 4024430 B2 JP4024430 B2 JP 4024430B2
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Prior art keywords
machine
oil
machine base
knitting
lubricating oil
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JP18115899A
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JP2001011760A (en
JP2001011760A5 (en
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一男 児玉
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日本マイヤー株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は、経編機におけるマシンベースの熱歪防止装置に関する。
【0002】
【従来の技術】
長時間の編機停止時に、編機が工場内の室温まで冷えることによる編機の機枠の若干の縮みが原因で発生する編機再稼働後の編成時におけるガイドニードルと編成ニードルとの接触による障害を避けるために、長時間編機を停止する間でもマシンベースの温度が低下するのを防ぐことができる装置、具体的にはマシンベース内のオイルボックスに潤滑オイルを貯留してなるオイルヒータ装置を設置した経編機は従来周知である。図1に示すものはオイルヒータを設置した従来の経編機のマシンベース及びマシンフレーム類を一部切り欠いて示す概略正面図であるが、この場合編機稼働時にカムあるいはクランク等の回転によりオイルボックス104内でオイルヒータにより常時オイル温度が一定に保たれたオイルが飛散してマシンベースの編成部材側とその反対側間の温度差を一定に保つことはできるが、長時間の編機停止時には、貯留されている潤滑オイル102の温度は、全面に亙って潤滑オイル102と当接しているマシンベース内底面101c等を介して編成部材と反対側のベースによく伝わり易いので、マシンベース底部101bの温度は引き続き一定に保たれる。しかし、マシンベース天井部101aの温度は、潤滑オイルが飛散されないために室温程度まで下がり、マシンベース101においてマシンベース底部101bの温度よりも、マシンベース天井部101aの温度が4℃前後低くなる。この結果編成部103においては矢印A1,A2で示される方向すなわち編機中央部に向かう方向に歪が生じ、それにより、例えば右端部でガイドバーが位置決めされている場合、ガイドバーはわずかに左方向に移動して、ガイドニードルが編成ニードルに接近し過ぎることとなり、最近の細密ゲージの編機例えば24ゲージ〜28ゲージの場合、長時間停止後の編機再稼動時にわずかな機枠の歪でも大きく影響してガイドニードルと編成ニードルが接触するという現象が起きることになる。
【0003】
【発明が解決しようとする課題】
本発明は、前記の課題を解決し、長時間停止後の編機再稼動時に、ガイドニードルと編成ニードルが接触するという現象を防止するために、長時間の編機停止時におけるマシンベースの編成部材側とその反対側間の温度差を少なくすることによる熱歪を防止できる装置を提供することを目的とする。
【0004】
【課題を解決するための手段】
凾体のマシンベース内部に貯留されている潤滑オイル内にオイルヒータを設けてなる経編機において、マシンベース内部の潤滑オイルを循環するように設置してなるオイル循環手段と、循環される潤滑オイルをマシンベースの編成部材側の内面に一律に吹き付け可能に、オイル循環手段と直接あるいは間接に連結してなる噴射ノズルとを設け、潤滑オイルをマシンベースの編成部材側の内面に吹き付けてやることで、編機停止時におけるマシンベースの編成部材側とその反対側間の温度差が少なくなる結果、編機稼働時と長時間の編機停止時とでマシンベースの編成部材側とその反対側間の温度差が一定となるので、マシンベースの歪が防止され、長時間停止後の編機再稼動時にガイドニードルと編成ニードルが接触するという現象が抑制される。
【0005】
【発明の実施の形態】
潤滑オイルがマシンベースの編成部材側の内面に一律に吹き付けられるように、噴射ノズルをベース幅に合わせて複数個設けてなることで、マシンベース下部とマシンベース上部の温度差が編機稼働時及び長時間の編機停止時において0℃〜1.5℃の範囲内となり、マシンベースの歪がほとんど発生せず、長時間停止後の編機再稼動時にガイドニードルと編成ニードルが接触するという現象が防止される。
【0006】
【実施例】
以下、本発明を図面に基づいて説明する。図2は本発明のマシンベースの熱歪防止装置の一実施例の装備状態を示すマシンベースの部分側面図、図3は図2の熱歪防止装置の装備状態を示すマシンベースの平面図である。図2,図3においてマシンベースの熱歪防止装置を説明する。1は経編機のマシンベースで、マシンベース1に固定されているオイル分配器6、マシンベース内部にて潤滑オイル5を分配するためにオイル分配器6に連結されているオイル分配パイプ8、マシンベース外部にて潤滑オイル5を循環するためにオイル分配器6に連結されているオイル循環パイプ4、潤滑オイル5を常時循環可能にオイル循環パイプ4に連結されているオイルポンプ3、及び潤滑オイル5に混在する不純物を除去するためにオイル循環パイプ4を介してオイルポンプ3に連結されているオイルフィルタ7からなるオイル循環手段が構成される。オイル分配パイプ8に連結されている噴射ノズル2と前記オイル循環手段とで熱歪防止装置が構成されている。凾体のマシンベース1内に設けられたオイルボックス12内に貯留されている潤滑オイル5には、マシンベース1に両端を回動可能に保持されてなるメインシャフト11に嵌合されてなるカム10が浸されており、オイルボックス12内には、潤滑オイル5の中に沈んだ状態となる位置にオイルヒータ9が設置されている。
【0007】
オイルボックス12内に貯留されている潤滑オイル5は、オイルポンプ3により吸い上げられ、オイルフィルタ7により不純物が除去される。そしてオイル循環パイプ4を通って矢印B方向に流れ、オイル分配器6により分配された潤滑オイル5は、オイル分配パイプ8を通って噴射ノズル2に達する。噴射ノズル2よりマシンベース上部内面1aに図中の点線で示す様に吹き付けられた潤滑オイル5は再びオイルボックス12内に貯留されて循環する。
【0008】
図3に示すように複数の噴射ノズル2a〜2eが設置されている場合、各噴射ノズルから潤滑オイル5が常時吹き付けられるが、その場合のマシンベース1の編成部材側、即ち上部とその反対側、即ち下部間の温度差が表1に示されている。
【0009】
【表1】

Figure 0004024430
【0010】
表1では、各々マシンベース1の左部M1、中央部M2、右部M3におけるマシンベース上下部の温度T1,T2が比較されており、マシンベース上部の温度T1は各々マシンベース1の上部前面計測点N1、上面部計測点N2、上部後面計測点N3で計測された温度の平均温度とし、マシンベース下部の温度T2は各々マシンベース1の下部前面計測点N4、下部後面計測点N5で計測された温度の平均温度としている。左部M1において、上部前面計測点N1、上面部計測点N2、上部後面計測点N3の平均温度と、下部前面計測点N4、下部後面計測点N5の平均温度との温度差は、長時間編機停止時では1.0℃であるが、編機再稼働後の時間の経過に沿って徐々に開いてゆき、編機再稼働120分後には2.3℃となるので、その時間内における温度差間の最大温度差は1.3℃となる。同様に、中央部M2におけるマシンベース上下部間の温度差間の最大温度差は0.3℃、右部M3におけるマシンベース上下部間の温度差間の最大温度差は1.4℃となり、計測誤差を考慮に入れても、左部M1、中央部M2、右部M3におけるマシンベース上下部間の温度差間の最大温度差は、編機稼働時及び長時間の編機停止時を通して0℃〜1.5℃の範囲内に保たれているので、マシンベース上下部間の歪がほとんど発生しない。
【0011】
中央部M2における最大温度差0.3℃と比較して左部M1、右部M3における最大温度差が各々1.3℃、1.℃と開いているのは、マシンベース1の左部M1及び右部M3における各計測点が、各々最左端の噴射ノズル2e及び最右端の噴射ノズル2aから遠い位置あったためであり、例えば噴射ノズルの数を計7個に増やせば、マシンベース左右最端部においても潤滑オイルが吹き付けられ、中央部M2における最大温度差と同程度の温度差とすることができ、同様に編機のマシンベース幅に応じて噴射ノズルの数を適宜増やす必要がある。又、本実施例においては噴射ノズルから潤滑オイルを常時噴射する例のみを示したが、編機停止時にのみ噴射ノズルから潤滑オイルを吹き付ける構成としても、マシンベース上部内面1aには常時潤滑オイルが飛散されることになり、最大温度差は本実施例と同程度となる。尚、編機再稼働120分後における温度以上にマシンベース1の温度が上昇しないことは確認されているので、それ以後のマシンベースの温度差を表1に示してはいない。
【0012】
【発明の効果】
本発明によれば、編機稼働時及び編機停止時を通してマシンベース上下部間即ち編成部材側とその反対側間の温度差がほぼ一定に保たれているのでマシンベースに歪が発生せず、長時間停止後の編機再稼働時にガイドニードルと編成ニードルが接触するという現象が抑制あるいは完全に防止される。
【図面の簡単な説明】
【図1】従来の経編機のマシンベース及びマシンフレーム類を一部切り欠いて示す概略正面図。
【図2】本発明の熱歪防止装置の一実施例の装備状態を示すマシンベースの部分側面図。
【図3】図2の熱歪防止装置の装備状態を示すマシンベースの平面図。
【符号の説明】
1…マシンベース
2、2a、2b、2c、2d、2e…噴射ノズル
3…オイルポンプ
4…オイル循環パイプ
5…潤滑オイル
6…オイル分配器
7…オイルフィルタ
8…オイル分配パイプ
9…オイルヒータ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a machine-based thermal strain prevention device in a warp knitting machine.
[0002]
[Prior art]
Contact between the guide needle and the knitting needle during knitting after the knitting machine is restarted due to slight shrinkage of the machine frame of the knitting machine due to the knitting machine cooling to room temperature in the factory when the knitting machine is stopped for a long time To prevent the machine base temperature from dropping even when the knitting machine is stopped for a long period of time, specifically oil that contains lubricating oil in the oil box in the machine base. A warp knitting machine provided with a heater device is well known. FIG. 1 is a schematic front view showing a machine base and machine frames of a conventional warp knitting machine provided with an oil heater, partly cut away. In this case, the cam or crank is rotated during operation of the knitting machine. The oil whose oil temperature is always kept constant by the oil heater in the oil box 104 is scattered and the temperature difference between the knitting member side of the machine base and the opposite side can be kept constant. At the time of stoppage, the temperature of the stored lubricating oil 102 is easily transmitted to the base opposite to the knitting member through the machine base inner bottom surface 101c that is in contact with the lubricating oil 102 over the entire surface. The temperature of the base bottom 101b is kept constant. However, the temperature of the machine base ceiling portion 101a is lowered to about room temperature because the lubricating oil is not scattered, and in the machine base 101, the temperature of the machine base ceiling portion 101a is lower by about 4 ° C. than the temperature of the machine base bottom portion 101b. As a result, the knitting unit 103 is distorted in the directions indicated by the arrows A1 and A2, that is, in the direction toward the center of the knitting machine, so that, for example, when the guide bar is positioned at the right end, the guide bar is slightly left In the case of a recent fine gauge knitting machine, for example, 24 gauge to 28 gauge, slight distortion of the machine frame when the knitting machine is restarted after being stopped for a long time. However, a phenomenon that the guide needle and the knitting needle come into contact with each other greatly occurs.
[0003]
[Problems to be solved by the invention]
The present invention solves the above-mentioned problems, and prevents the phenomenon that the guide needle and the knitting needle come into contact with each other when the knitting machine is restarted after being stopped for a long time. It is an object of the present invention to provide an apparatus capable of preventing thermal distortion caused by reducing a temperature difference between a member side and the opposite side.
[0004]
[Means for Solving the Problems]
In a warp knitting machine in which an oil heater is provided in the lubricating oil stored in the machine base of the housing, oil circulating means installed so as to circulate the lubricating oil inside the machine base, and the circulating lubrication In order to be able to spray oil uniformly on the inner surface of the machine base on the knitting member side, an injection nozzle that is directly or indirectly connected to the oil circulation means is provided, and lubricating oil is sprayed on the inner surface of the machine base on the knitting member side. As a result, the temperature difference between the machine base knitting member side when the knitting machine is stopped and the opposite side is reduced. As a result, the machine base knitting member side is opposite to that when the knitting machine is operating and when the machine is stopped for a long time. Since the temperature difference between the sides is constant, machine base distortion is prevented, and the phenomenon of contact between the guide needle and the knitting needle when the knitting machine is restarted after stopping for a long time is suppressed. That.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
By providing multiple spray nozzles according to the base width so that the lubricating oil can be uniformly sprayed on the inner surface of the machine base on the knitting member side, the temperature difference between the machine base lower part and the machine base upper part is And when the knitting machine is stopped for a long time, it is within the range of 0 ° C. to 1.5 ° C., and there is almost no distortion of the machine base, and the guide needle and the knitting needle come into contact when the knitting machine is restarted after a long stop. The phenomenon is prevented.
[0006]
【Example】
Hereinafter, the present invention will be described with reference to the drawings. FIG. 2 is a partial side view of a machine base showing an installation state of an embodiment of the machine-based thermal strain prevention apparatus of the present invention, and FIG. 3 is a plan view of the machine base showing an installation state of the thermal strain prevention apparatus of FIG. is there. 2 and 3, a machine-based thermal strain prevention device will be described. 1 is a machine base of a warp knitting machine, an oil distributor 6 fixed to the machine base 1, an oil distribution pipe 8 connected to the oil distributor 6 for distributing lubricating oil 5 inside the machine base, An oil circulation pipe 4 connected to the oil distributor 6 for circulating the lubricating oil 5 outside the machine base, an oil pump 3 connected to the oil circulation pipe 4 so that the lubricating oil 5 can be circulated at all times, and lubrication An oil circulation means comprising an oil filter 7 connected to the oil pump 3 through the oil circulation pipe 4 in order to remove impurities mixed in the oil 5 is constituted. The spray nozzle 2 connected to the oil distribution pipe 8 and the oil circulation means constitute a thermal strain prevention device. The lubricating oil 5 stored in an oil box 12 provided in the machine base 1 of the housing is a cam fitted to a main shaft 11 that is rotatably held at both ends of the machine base 1. 10 is immersed, and an oil heater 9 is installed in the oil box 12 at a position where the oil box 12 is submerged in the lubricating oil 5.
[0007]
The lubricating oil 5 stored in the oil box 12 is sucked up by the oil pump 3, and impurities are removed by the oil filter 7. The lubricating oil 5 flowing in the direction of arrow B through the oil circulation pipe 4 and distributed by the oil distributor 6 reaches the injection nozzle 2 through the oil distribution pipe 8. Lubricating oil 5 sprayed from the injection nozzle 2 to the machine base upper inner surface 1a as shown by the dotted line in the figure is again stored in the oil box 12 and circulated.
[0008]
As shown in FIG. 3, when a plurality of injection nozzles 2a to 2e are installed, the lubricating oil 5 is always sprayed from each injection nozzle. In this case, the knitting member side of the machine base 1, that is, the upper part and the opposite side thereof That is, the temperature difference between the lower parts is shown in Table 1.
[0009]
[Table 1]
Figure 0004024430
[0010]
In Table 1, the temperatures T1 and T2 of the machine base upper and lower parts in the left part M1, the central part M2, and the right part M3 of the machine base 1 are compared, respectively. The temperature measured at the measurement point N1, the upper surface measurement point N2, and the upper rear measurement point N3 is the average temperature, and the machine base lower temperature T2 is measured at the lower front measurement point N4 and lower rear measurement point N5 of the machine base 1, respectively. The average temperature of the measured temperature. In the left part M1, the temperature difference between the average temperature of the upper front measurement point N1, the upper surface measurement point N2, and the upper rear measurement point N3 and the average temperature of the lower front measurement point N4 and the lower rear measurement point N5 is long-time edited. Although it is 1.0 ° C when the machine is stopped, it gradually opens along with the passage of time after the knitting machine is restarted and becomes 2.3 ° C after 120 minutes of knitting machine restart. The maximum temperature difference between the temperature differences is 1.3 ° C. Similarly, the maximum temperature difference between the temperature differences between the machine base upper and lower parts in the center M2 is 0.3 ° C., and the maximum temperature difference between the machine base upper and lower parts in the right part M3 is 1.4 ° C. Even if measurement errors are taken into consideration, the maximum temperature difference between the temperature differences between the upper and lower parts of the machine base in the left part M1, the central part M2, and the right part M3 is 0 throughout the knitting machine operation and when the knitting machine is stopped for a long time. Since it is kept within the range of from ℃ to 1.5 ℃, there is almost no distortion between the upper and lower parts of the machine base.
[0011]
Compared with the maximum temperature difference of 0.3 ° C. in the central part M2, the maximum temperature difference in the left part M1 and the right part M3 is 1.3 ° C., respectively. 4 of ℃ the open is for each measurement point in the left part M1 and the right portion M3 of the machine base 1, there from each leftmost injection nozzle 2e and the rightmost injection nozzle 2a at a position far, e.g. If the number of spray nozzles is increased to a total of seven, the lubricating oil is sprayed at the left and right end portions of the machine base, and the temperature difference can be made to be the same as the maximum temperature difference at the central portion M2. It is necessary to appropriately increase the number of injection nozzles according to the machine base width. In the present embodiment, only the example in which the lubricating oil is constantly injected from the injection nozzle is shown. However, even when the lubricating oil is sprayed from the injection nozzle only when the knitting machine is stopped, the lubricating oil is always applied to the upper inner surface 1a of the machine base. The maximum temperature difference is about the same as in this embodiment. Since it has been confirmed that the temperature of the machine base 1 does not increase more than the temperature after 120 minutes after the knitting machine is restarted, the temperature difference of the machine base after that is not shown in Table 1.
[0012]
【The invention's effect】
According to the present invention, since the temperature difference between the upper and lower parts of the machine base, that is, between the knitting member side and the opposite side is kept constant throughout the operation of the knitting machine and when the knitting machine is stopped, no distortion occurs in the machine base. The phenomenon that the guide needle and the knitting needle come into contact with each other when the knitting machine is restarted after being stopped for a long time is suppressed or completely prevented.
[Brief description of the drawings]
FIG. 1 is a schematic front view showing a machine base and machine frames of a conventional warp knitting machine with a part cut away.
FIG. 2 is a partial side view of a machine base showing an installed state of an embodiment of the thermal strain prevention device of the present invention.
FIG. 3 is a plan view of a machine base showing an installed state of the thermal strain prevention device of FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Machine base 2, 2a, 2b, 2c, 2d, 2e ... Injection nozzle 3 ... Oil pump 4 ... Oil circulation pipe 5 ... Lubricating oil 6 ... Oil distributor 7 ... Oil filter 8 ... Oil distribution pipe 9 ... Oil heater

Claims (2)

凾体のマシンベース内部に貯留されている潤滑オイル内にオイルヒータを設けてなる経編機において、マシンベース内部の潤滑オイルを循環するように設置してなるオイル循環手段と、循環される潤滑オイルをマシンベースの編成部材側の内面に一律に吹き付け可能に、オイル循環手段と直接あるいは間接に連結してなる噴射ノズルとを設けてなることでマシンベースの歪を防止するようにしたことを特徴とする経編機におけるマシンベースの熱歪防止装置。In a warp knitting machine in which an oil heater is provided in lubricating oil stored in the machine base of the chassis, oil circulating means installed so as to circulate the lubricating oil inside the machine base, and circulating lubrication The machine base is prevented from being distorted by providing an oil circulation means and an injection nozzle that is connected directly or indirectly so that oil can be sprayed uniformly on the inner surface of the machine base on the knitting member side. A machine-based thermal strain prevention device for a warp knitting machine. 潤滑オイルがマシンベース内面に一律に吹き付けられるように、噴射ノズルをベース幅に合わせて複数個設けてなる請求項1に記載の経編機におけるマシンベースの熱歪防止装置。The machine-based thermal strain prevention device for a warp knitting machine according to claim 1, wherein a plurality of injection nozzles are provided in accordance with the base width so that the lubricating oil is uniformly sprayed on the inner surface of the machine base.
JP18115899A 1999-06-28 1999-06-28 Machine-based thermal strain prevention device for warp knitting machines Expired - Fee Related JP4024430B2 (en)

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JP18115899A JP4024430B2 (en) 1999-06-28 1999-06-28 Machine-based thermal strain prevention device for warp knitting machines

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JP3861157B2 (en) 2004-02-27 2006-12-20 国立大学法人広島大学 Reference data optimization device and pattern recognition system
EP1921190B1 (en) * 2006-11-07 2012-10-17 Karl Mayer Textilmaschinenfabrik GmbH Warp knitting machine
DE102011089476B4 (en) * 2011-12-21 2014-11-06 Liba Maschinenfabrik Gmbh Textile machine with reduced energy output to the environment
CN104195740B (en) * 2013-09-16 2016-05-04 海宁市成达经编有限公司 A kind of lubrication oil circulation mechanism of structure improved tricot machine

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