GB2132044A - A synchronous running monitor - Google Patents
A synchronous running monitor Download PDFInfo
- Publication number
- GB2132044A GB2132044A GB08328839A GB8328839A GB2132044A GB 2132044 A GB2132044 A GB 2132044A GB 08328839 A GB08328839 A GB 08328839A GB 8328839 A GB8328839 A GB 8328839A GB 2132044 A GB2132044 A GB 2132044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prism
- initiators
- synchronous running
- running monitor
- synchronous
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Looms (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
A synchronous running monitor particularly for monitoring the turning of the prisms e.g. 5 in jacquard machines, has a perforated disc rigidly connected with a prism shaft 4. In the case of a prism having five or six sides, the disc has 3 perforations, which are sensed by 3 detectors 7, giving a 3-bit binary code corresponding to a prism edge. The monitoring for complete and synchronous changing over of the individual prisms is carried out by means of a logic evaluation element. <IMAGE>
Description
SPECIFICATION
Synchronous running monitor
The invention relates to a synchronous running monitor particularly though not exclusively for prisms on jacquard machines.
Drawing No.4860-2201.50 of the documents relating to the Jacquard machine 4860 of the VEB
Webstuhlbau, Karl-Marx-Stadt, discloses a device for monitoring the synchronous running and the complete turning of the prisms.
The device is based on a differing optical characterization of the individual prism surfaces. The prisms of the jacquard machine are disposed in a row such that one prism surface is visible in each case to the weaver.
If the prisms are not or are incompletely changed over, there is no uniform characterization of the visible prism surfaces. If this case arises, the loom must be manually stopped by the weaver.
This monitoring process depends, therefore, on subjective factors and is subject to errors, i.e. if the weaver is not paying attention damage to the jacquard machine may occur, which damage requires high expenditure for repair.
The object of the invention is to provide an improved monitor.
According to the invention there is provided a synchronous running monitor for monitoring the position of a shaft as to whether or not it is in one of a plurality of operational angular positions, comprising an initiator actuation element connected to the shaft, the actuation element having a number of actuation points which is a lesser number than the plurality of operation positions, an array of the same number of initiators as actuation points arranged for determining whether the points are in register with the initiators, the arrangement being such that a unique logical indication of register or not from the initiators identifies whether the shaft is in one of its operational positions and if so which position.
Where there are five or six operational positions three actuation points and three initiators are provided. For four operational positions two actuation points and two initiators are provided.
In particularwherethe monitor is in combination with a jacquard machine, the shaft is a prism shaft and the operational positions correspond to the operational angular positions of the prism and the actuation points are rigidly associated with the lateral edges of the prism
The initiators are advantageously disposed in a fixed manner on the prism body in accordance with the prism division.
Preferably each lateral prism edge is identified with a different binary code. This binary code is at least of three figures for five or more sides of the prism. Preferably the initiator actuation elements and initiators are interchangeable.
Complete or synchronous change-over of the individual prisms may be monitored by means of a logic evaluation element.
In addition, the time of the evaluation may depend on the movement diagram of the machine.
The invention may be used in cases involving the use of jacquard machines, i.e. in weaving when the number of different binding warp threads has a greater ratio than the number of dobbies possible in tie-up jacquard machines.
To help understanding of the invention, a specific embodiment thereof will now be described by way of example and with reference to the accompanying drawing, in which:
Figure 1 shows a side and a plan view of a synchronous running monitor according to the in vention, and Figure 2 shows a side and a plan view of a signalling device of the monitor of Figure 1.
The synchronous running monitor of Figure 1 comprises a signalling device and a monitoring device. The former comprises an initiator actuation element, formed, as shown in Figure 2, as a perforated disc 1, fast with an adjustment ring 2 having at least one adjusting screw 3, by means of which the adjustment ring 2 may be secured on the prism shaft 4, shown in Figure 1. In the case of a prism 5 having five of six sides the perforated disc 1 has three perforations and in the case of a prism 5 having four sides it has two perforations in accordance with the prism division. The monitoring device comprises a base plate 6 on which three initiators in the case of a prism 5 having five or six sides, which are arranged, as shown in Figure 1. The initiators are proximity initiators 7 and are disposed in accordance with the prism division.The proximity initiators are disposed on the locus of the centres of the perforations in the perforated disc 1. The monitoring device, via its base plate 6, is fixed in a stationary manner by means of screws and lock nuts 9 to the prism mechanism body 8. The prism surface to be pressed is parallel to the needle field 10. The proximity initiators 7 are accurately positioned in line with the perforations of the perforated disc 1 by loosening and tightening of the lock nuts 9, in order to ensure that the synchronous running monitor is ready for use.
After each change-over of the prism 5, i.e. exactly when the prism body 8 has reached the point at which the turning process of the prism 5, in accordance with the movement diagram of the machine, is theoretically finished, the comparison of the position of the perforations of the perforated disc 1 with respect to the proximity initiators 7 takes place. The prism 5 is then exactly turned when the prism surface is parallel to the needle field 10. In Figure 1 the three perforations of the performated disc 1 are located opposite the proximity initiators 7.
For the purposes of evaluation, this position corresponds as arranged with the letter L, i.e. the first change position for all three proximity initiators 7 L, L, L. The values for the second to the fifth change-over positions are L, L, O; L, O, 0; 0, O, L and 0, L, L. The arrangement of the proximity initiators 7 is selected such that in the case of the result 0, 0, 0 the longitudinal prism edge (tip) is located with respect to the needle field 10. In this case the loom is switched off. If several jacquard machines are used on one loom the result of each change-over position must in addition be identical for all the jacquard machines in order to achieve synchronous running, i.e. to prevent pattern misalignment. If the latter is not the case the loom is also stopped.
The above described will be seen to provide a monitoring device enabling a complete change-over of the prisms, in the case of use of one jacquard machine, and an asynchronous change-over, in the case of use of several jacquard machines, to be monitored. Operating conditions are improved; an increase in fabric quality and an increase in production outputs may be achieved.
Further, the change-over process for the prisms located on the jacquard machine is monitored. A signal is triggered in the case of inadequate turning of the prisms, which leads to a stoppage of the machine. in this way pressure of the longitudinal edges (tips) of the prisms on the needle field caused by incomplete turning of the prisms and leading to damage to the needle field or to the prism is avoided. In addition, in the case of use of several jacquard machines, pressure of the prisms is prevented in the case of asynchronous changing over of the prisms of the individual jacquard machines, i.e.
pattern misalignmentforthe material.
Claims (10)
1. Asynchronous running monitorformonitoring the position of a shaft as to whether or not it is in one of a plurality of operational angular positions, comprising an initiator actuation element connected to the shaft, the actuation element having a number of actuation points which is a lesser number than the plurality of operation positions, an array of the same number of initiators as actuation points arranged for determining whether the points are in register with the initiators, the arrangement being such that a unique logical indication of register or not from the initiators identifies whether the shaft is in one of its operational positions and if so which position.
2. A synchronous running monitor as claimed in claim 1 wherein there are five or six operational positions and these are three actuation points and three initiators.
3. A synchronous running monitor as claimed in claim 1 wherein there are four operational positions and there are two actuation points and two initiators.
4. A synchronous running monitor as claimed in claim 1, claim 2 or claim 3, in combination with a jacquard machine, wherein the shaft is a prism shaft and the operational positions correspond to the operational angular position of the prism and the actuation points are rigidly associated with the lateral edges of the prism.
5. A synchronous running monitor as claimed in claim 4, wherein initiators are disposed in a fixed manner on the prism mechanism body in accordance with the prism division.
6. A synchronous running monitor as claimed in claim 4 or claim 5, wherein each lateral prism edge is provided with a different binary code.
7. A synchronous running monitor as claimed in claim 4, claim 5 or claim 6, wherein the initiator actuation element and the initiator are interchangeable.
8. A synchronous running monitor as claimed in any one of claims 4to 7, wherein complete or synchronous changing over of the individual prisms may be monitored by means of a logic evaluation element.
9. A synchronous running monitor as claimed in claim 8, wherein the time of the evaluation is a function of the movement diagram of the machine.
10. A synchronous running monitor in combination with a jacquard machine substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD24546782A DD212393A3 (en) | 1982-12-02 | 1982-12-02 | PRISMENUEBERWACHUNGSVORRICHTUNG |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8328839D0 GB8328839D0 (en) | 1983-11-30 |
GB2132044A true GB2132044A (en) | 1984-06-27 |
GB2132044B GB2132044B (en) | 1986-10-01 |
Family
ID=5542919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08328839A Expired GB2132044B (en) | 1982-12-02 | 1983-10-28 | A synchronous running monitor |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE898302A (en) |
CH (1) | CH662369A5 (en) |
CS (1) | CS249799B1 (en) |
DD (1) | DD212393A3 (en) |
DE (1) | DE3331894A1 (en) |
FR (1) | FR2537166A1 (en) |
GB (1) | GB2132044B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783069A (en) * | 1995-03-09 | 1998-07-21 | Mass Transfer International Ltd. | Packing elements |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1152257A (en) * | 1966-11-30 | 1969-05-14 | Gen Electric & English Elect | Improvements in or relating to Electric Signalling Systems |
GB1236522A (en) * | 1967-12-15 | 1971-06-23 | Mc Graw Edison Co | Position encoder |
GB1410911A (en) * | 1971-09-08 | 1975-10-22 | Counting Instr Ltd | Meter reading systems |
GB1568421A (en) * | 1976-08-20 | 1980-05-29 | Siemens Ag | Arrangement for use in measuring the number of rotations of a rotating device |
GB1574318A (en) * | 1975-12-30 | 1980-09-03 | Westinghouse Electric Corp | Meter dial encoder for remote meter reading |
-
1982
- 1982-12-02 DD DD24546782A patent/DD212393A3/en not_active IP Right Cessation
-
1983
- 1983-09-03 DE DE19833331894 patent/DE3331894A1/en not_active Withdrawn
- 1983-10-17 FR FR8316468A patent/FR2537166A1/en active Granted
- 1983-10-28 GB GB08328839A patent/GB2132044B/en not_active Expired
- 1983-11-01 CH CH590583A patent/CH662369A5/en not_active IP Right Cessation
- 1983-11-11 CS CS838337A patent/CS249799B1/en unknown
- 1983-11-24 BE BE0/211930A patent/BE898302A/en not_active IP Right Cessation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1152257A (en) * | 1966-11-30 | 1969-05-14 | Gen Electric & English Elect | Improvements in or relating to Electric Signalling Systems |
GB1236522A (en) * | 1967-12-15 | 1971-06-23 | Mc Graw Edison Co | Position encoder |
GB1410911A (en) * | 1971-09-08 | 1975-10-22 | Counting Instr Ltd | Meter reading systems |
GB1574318A (en) * | 1975-12-30 | 1980-09-03 | Westinghouse Electric Corp | Meter dial encoder for remote meter reading |
GB1568421A (en) * | 1976-08-20 | 1980-05-29 | Siemens Ag | Arrangement for use in measuring the number of rotations of a rotating device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5783069A (en) * | 1995-03-09 | 1998-07-21 | Mass Transfer International Ltd. | Packing elements |
Also Published As
Publication number | Publication date |
---|---|
GB2132044B (en) | 1986-10-01 |
DE3331894A1 (en) | 1984-06-07 |
CS833783A1 (en) | 1985-12-16 |
FR2537166A1 (en) | 1984-06-08 |
DD212393A3 (en) | 1984-08-08 |
GB8328839D0 (en) | 1983-11-30 |
CS249799B1 (en) | 1987-04-16 |
BE898302A (en) | 1984-03-16 |
FR2537166B3 (en) | 1985-03-15 |
CH662369A5 (en) | 1987-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |