CN1026262C - 检验玻璃容器壁厚的装置 - Google Patents
检验玻璃容器壁厚的装置 Download PDFInfo
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- CN1026262C CN1026262C CN89109076A CN91112733A CN1026262C CN 1026262 C CN1026262 C CN 1026262C CN 89109076 A CN89109076 A CN 89109076A CN 91112733 A CN91112733 A CN 91112733A CN 1026262 C CN1026262 C CN 1026262C
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- vial
- signal
- voltage signal
- wall thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
- G01B7/08—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness using capacitive means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/74—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body
- F42B12/745—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the core or solid body the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
- F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
- F42B12/78—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing of jackets for smallarm bullets ; Jacketed bullets or projectiles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/28—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Measurement Of Current Or Voltage (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
可检测和累计壁厚检验装置的通道内产生的信号误差,从而确定该通道是否应关闭。
Description
本发明是关于检验玻璃容器壁厚的仪器,它是通过测定玻璃容器沿伸长的电容带滚动时所产生的电压采样数据而进行检验的。
玻璃瓶或玻璃容器的制造,是将熔融玻璃料在玻璃容器成型机械中分段成型的。首先压制或吹制成型坯,然后将此型坯吹成容器。在此过程中,若玻璃分布均匀,壁厚就会均匀,但若玻璃分布不均匀,则容器壁就会出现较薄的地方,当灌充或携带这种玻璃容器时,这些较薄的地方就会造成玻璃瓶的损坏。
由于玻璃具有高介电常数,因此能够测量位于传感器的两伸长电极之间的玻璃容器的电容,该传感器当玻璃瓶沿其滚动时与玻璃瓶相接触。这一电容量随玻璃壁厚的增加而单调增加,并且可以用一电子线路进行测量而将此电容量转换为电压。随着玻璃瓶沿传感器滚动,就可连续产生代表壁厚的电压,如果该电压降低到小于某选定值时(该选定值代表最小壁厚),则该正被测试的玻璃瓶就能被剔除。每个传感器都是一分立数据通道的一部分。
通常利用三个或四个数据通道来检验玻璃容器,并测定从每个通道输出的电压。任何通道的随机误差都可造成正被检验的玻璃容器被剔除,并且一个信号通道的错误会造成大量玻璃容器的不适当剔除。
因此本发明的目的是提供一个检测通道误差的装置以使玻璃容器不致被错误地剔除,并使不正常通道从该检测装置中撤出。
本发明的其他目的和改进从本说明书的下述部分和各附图可以清楚地看出,这些附图按专利法的规定说明了一个体现本发明的基本原理的优选实施例。
参见下列附图:
图1是玻璃容器检验装置的测试台的部分斜视图;
图2是图1所示装置中振荡组件的检测头的前视图;
图3是说明经检测头所产生的理想信号;
图4是说明经检测头所产生的可能的实际信号;
图5说明故障通道的输入信号;
图6是一逻辑图,用以说明被锁存装置捕捉的误差信号的错误判定。
图7是一逻辑图,说明本装置的测试运算规则。
玻璃容器检验装置8有一个测试圆柱形瓶子70的试验台,支承板12支承着被测瓶,该被测瓶由瓶载运器14载带着沿支承板12向前运动。当被测瓶移动通过测试台时,载运器14迫使瓶子对着平行而水平延伸的,且垂直设置的电容检测带16,这些检测带16是固定于安装在适当的支架20
上的弹性泡沫塑料材料18上的。该支架由支柱22连接到相应的振荡器组件24上,振荡器组件经已校准的电缆26接收电容信号并产生电压信号,这些电压信号被送到计算机。每个振荡器组件的检测头都是一分立数据通道的一部分。
在操作过程中,一个沿着平行于上述电容带的通路传送的玻璃容器将在端边34处与电容带32(图2)接触,从而该通道在此时就会给出一个代表该玻璃容器壁厚的电压信号。测试点位置36选择在这样一点上,即在该处能够始终一致地产生电压信号,并且在该处出现一个信号时就肯定表示存在一个瓶子。检验操作是起始于靠近测试点的初始测试位置38,终止于离电容带末端42(测试点之外)不远处的终止测试位置40。
图3表示因一玻璃瓶沿电容带滚动而产生的理想数字电压信号。在玻璃瓶和电容带接触之前和其离开电容带之后,检验通道应该是不工作的(无信号产生),而当它们相接触时,检验通道应该是工作的(应该出现信号)。
第一个可能出现的误差是虚假玻璃瓶存在的误差信号50(图4),在该处产生一个信号,它指示在玻璃瓶与电容带接触前即出现一玻璃瓶。
在检验窗出现的时刻34(图4),如果未出现真实玻璃瓶存在的信号,则说明锁存的通道是处于误操作状态,它将会检测到错误脉冲51(图4)。这种误差将被记录下来,检验工作就会无效。如果出现了玻璃瓶存在信号(在时间34),则此信号将被记录下来,从而建立一玻璃瓶存在标志(bpflag-带通标志),检测周期就此开始。
在测试点36(图4)所有启动的锁存器都处于贮存状态,以便在终端检验位置40(图4)和检验窗口末端42(图4)处进行比较。然后,这些锁存器被清零。
如果在终端检验位置40(图4),任一通道锁存器已被设定,这就表明该通道原来是不工作的而在出现玻璃瓶时又工作了,这样就将检测到错误脉冲53(图4)。这是一种错误的情况,并且就将这样记录下来。如果有一个已启动的通道还没有工作,如52(图5),于是通过判定各通道锁存器及在测试点36(图4)已存贮的通道锁存信息,就可将其检测为一误差信号。此时,各锁存器再被清除。
注意到下述情况是很重要的,即当只使用一个通道时,误差信号51和53(图4)将有效地在检验窗口末端的正常时间之前发出窗口末端信号,这一方案同样可俘获那些错误信号。
在检验窗口末端42(图3),如果没有已记录的玻璃瓶(带通标志-bpflag-设定于起始检验窗口34,图3),于是就会不计该玻璃瓶,并且使起始窗口处理该误差。如果该点小于测试点,则将确定哪个通道发生误差,这样就将俘获误差脉冲51(图4),即那种比在起始窗口俘获的误差脉冲周期更长的脉冲。如果该点处于测试点和末端位置之间,则发生误差的通道就可以确定,这样就可以俘获误差信号53(图4)。
当检验周期完全时(图7),控制器将会累加所寄存的误差和其他误差(例如在测试点不存在玻璃瓶),如果在该周期内设有误差,就从已有误差计数中减去“1”,如果有误差,则将其总数乘以灵敏度系数(该系数是操作者对每个通道都从控制器端子60输入控制器的,且该数值是自动显示于显示器62的,图1),该数字然后自动加到现有误差计数上,如果它超出某阈值(也是操作者经端子输入,并经64显示的),则控制器关闭该通道,并发出信号指示这一状态(图上示出以警告灯66发出这种信号)。
Claims (2)
1、一种检验玻璃瓶壁厚的装置,包括:
一长形电容条带,
沿所述条带滚动玻璃瓶的装置,
当玻璃瓶沿所述条带滚动时,产生代表玻璃瓶壁厚的电压信号的装置,
其特征在于,该检验玻璃瓶壁厚的装置还包括:
测定所述电压信号从而使被检验玻璃瓶合格或剔除的装置,启动所述电压测定装置的装置,包括:
随电压信号从零到强而对其锁存的第一锁存装置,
当电压信号被锁存时鉴别是否存在一瓶出现信号的工作装置,
当所述鉴别装置误判存在瓶出现信号的情况下,清除所述锁存装置的装置,
在玻璃瓶滚出所述电容条带前,防止所述鉴别装置进行工作的装置。
2、根据权利要求1所述的装置,其特征在于,它还包括:
第二锁存装置,用于当所述测定装置测定所述电压信号时,随其从零到强而锁存该电压信号的装置,
计数装置,用于对各检验周期的误差数进行计数,包括:
当所述第二锁存装置被锁存时,所述第一锁存装置所锁存的信号总数加1,
总计数装置,用于总计误差的总数,以及当所述计数装置在一周期内计数为零时减去一预定数。
当所述总计数装置计至一预定数时,停止所述测定工作的装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US630,070 | 1990-12-19 | ||
US07/630,070 US5155443A (en) | 1990-12-19 | 1990-12-19 | Machine for inspecting the wall thickness of glass containers |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1063757A CN1063757A (zh) | 1992-08-19 |
CN1026262C true CN1026262C (zh) | 1994-10-19 |
Family
ID=24525631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN89109076A Expired - Fee Related CN1026262C (zh) | 1990-12-19 | 1991-12-19 | 检验玻璃容器壁厚的装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US5155443A (zh) |
EP (1) | EP0491571B1 (zh) |
JP (1) | JPH04315002A (zh) |
CN (1) | CN1026262C (zh) |
AU (1) | AU639401B2 (zh) |
CA (1) | CA2057950A1 (zh) |
DE (1) | DE69102255T2 (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US6962670B1 (en) | 2000-08-16 | 2005-11-08 | Eastman Chemical Company | Determination of layer thickness or non-uniformity of layer thickness based on fluorophore additives |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE921895C (de) * | 1951-12-11 | 1954-12-30 | Svenska Ventilations Ab | Vorrichtung zum Zaehlen von Fadenbruechen an Textilmaschinen |
US3684089A (en) * | 1970-09-21 | 1972-08-15 | Brockway Glass Co Inc | Container wall thickness detection |
US3708064A (en) * | 1971-03-16 | 1973-01-02 | Owens Illinois Inc | Method and apparatus for inspecting dielectric members |
US3916123A (en) * | 1974-09-20 | 1975-10-28 | Telesciences Inc | Event monitoring transceiver |
US4593369A (en) * | 1983-01-12 | 1986-06-03 | Adolph Coors Company | Monitoring system for a container testing machine |
US4639875A (en) * | 1984-05-17 | 1987-01-27 | Abraham Joseph N | Quantity checking system and method |
US4667336A (en) * | 1985-10-09 | 1987-05-19 | Burlington Industries, Inc. | Automatic detection of seat belt usage |
JPH0821153B2 (ja) * | 1987-10-12 | 1996-03-04 | オリンパス光学工業株式会社 | 形状寸法測定装置におけるデータ転送システム |
JPH0610830B2 (ja) * | 1988-04-09 | 1994-02-09 | シャープ株式会社 | Icカードのクロック信号切換装置 |
EP0363114B1 (en) * | 1988-10-05 | 1992-12-02 | Emhart Glass Machinery Investments Inc. | Glass container inspection apparatus |
US4996658A (en) * | 1989-08-31 | 1991-02-26 | Emhart Industries, Inc. | Self-calibrating glass container inspection machine |
-
1990
- 1990-12-19 US US07/630,070 patent/US5155443A/en not_active Expired - Lifetime
-
1991
- 1991-12-18 CA CA002057950A patent/CA2057950A1/en not_active Abandoned
- 1991-12-19 JP JP3337243A patent/JPH04315002A/ja active Pending
- 1991-12-19 AU AU89928/91A patent/AU639401B2/en not_active Ceased
- 1991-12-19 DE DE69102255T patent/DE69102255T2/de not_active Expired - Fee Related
- 1991-12-19 EP EP91311788A patent/EP0491571B1/en not_active Expired - Lifetime
- 1991-12-19 CN CN89109076A patent/CN1026262C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2057950A1 (en) | 1992-06-20 |
EP0491571B1 (en) | 1994-06-01 |
US5155443A (en) | 1992-10-13 |
DE69102255T2 (de) | 1994-09-08 |
AU639401B2 (en) | 1993-07-22 |
DE69102255D1 (de) | 1994-07-07 |
EP0491571A1 (en) | 1992-06-24 |
CN1063757A (zh) | 1992-08-19 |
JPH04315002A (ja) | 1992-11-06 |
AU8992891A (en) | 1992-06-25 |
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