JPH01500446A - Contact rail for electric thread monitor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Contact rail for electric thread monitor Technical field Each of the present inventions extends through the slits of a plurality of monitoring plates provided on the yarn, and cuts the yarn. A pair of counters is electrically conductively coupled to stop the equipment by means of a monitoring board that sometimes contacts both rails. Electric type of textile machine with two mutually parallel conductive rails, insulated from each other Concerning a contact rail for a thread monitor.

Background technology When the warp threads are monitored in this way, the device is called a warp monitor.

The known electrical appliance has a plurality of contact rails each consisting of an outer rail and an inner rail. For pneumatic warp monitors, the upper edge of the inner rail shall have a rectangular recess. Since the teeth are attached, the monitoring board that descends when cutting the warp threads is gripped by the recess. A lever installed on the warp monitor allows reciprocating movement of only the contact rail or inner rail. Therefore, when the guard plate is slid sideways in this way, A narrow passage is created between the different guard plates, making it easier to find the broken warp threads. .

With the advancement of technology, the width of the loom becomes larger and larger, therefore the associated warp monitoring Several contact rails are parallel to each other and support the warp threads, several meters long. Hundreds of monitoring boards are lined up on the contact rail. Therefore, the increase in weave width and Both of these are monitoring boards that were lowered onto the contact rail due to the thread being cut out of hundreds of monitoring boards. The task of finding is more difficult and time consuming. Location of known thread monitors In this case, as mentioned above, the contact rail is shifted in the joint direction to form a small passage and multiple contacts are connected. The above operation can be performed by searching for the presence of the above passage in any one of the contact rails. carry out the work.

Disclosure of invention The purpose of the invention is to eliminate the laborious search for monitoring boards that have been lowered over long contact rails. It is possible to locate the yarn break in a short period of time without using wood, thus reducing the downtime of the equipment. The goal is to configure the contact rail for the thread monitor so that it can be compressed and improve productivity. . A further objective is to monitor the loom for thread breaks and determine the frequency and frequency of thread breaks. and location distribution, record it as data, and store the above data centrally for various purposes. The goal is to evaluate data.

Electrically measure the distance between the monitoring board lowered onto the contact rail and one end of the contact rail. This allows for fairly accurate positioning of the broken thread or the lowered monitoring board.

yo (as is known, based on the principle of electrical measuring bridges, Disconnects or shorts can be located.

However, solid rails, such as the inner rail of the contact rail in the wood case, are It is not suitable for extracting resistance values because it applies the principle of air measurement bridge. surveillance Because the inner rail is in contact with the board, it is physically larger than normal rails, and the rails are larger than normal rails. An electrical conductor is required that has a resistance that increases linearly over its length. but However, a thin wire that satisfies this condition is suitable for the contact rail used in thread monitors. There is no electrical conductor in the inner rail. This is because it is sufficiently large and measurable. Correspondingly thin wire with a resistance value suitable for the standard method can withstand harsh operations in weaving factories and This is because it cannot withstand the load caused by the monitoring board.

When the thread is cut, the lowered monitoring board is connected to the inner rail of the contact rail and the outer rail to stop the equipment. Contact with the side rail. Therefore, the above method based on the principle of electrical measuring bridges The inner rail is equally suitable as the outer rail for implementing. for the above purpose To achieve this, a contact rail of the type mentioned at the outset has the features of claim 1. have The resistance value can be extracted as a measurable value at each point along the rail. Rails with memory properties can be configured in a wide variety of ways. The rail is installed on an insulating member. can have an electrical conductor placed in the It can also be made of a conductive material (such as a compact metal or carbon).

The electrical conductor installed on the insulating member is placed in a special shape, for example in a spiral shape, on the insulating member. The strip may be installed in a different shape, such as a meander shape (bent shape) or may be coated on the insulating member in the form of a layer, e.g. , can be vapor deposited or plated, or can be pasted.

All embodiments have inherently higher resistance values compared to conventional rails Electrical conductors are shaped into rails that are robust and stable enough to withstand mechanical loads. It is important to configure.

For the above purpose, a structurally very simple solution is available in the form of the known thread monitor. It is held in the U-shaped outer rail of the contact rail, which is itself rectangular. Use inner rails with a square cross section to carry electrical connections on insulating members with a square cross section. It is advisable to install conductors. In a practical embodiment, the electrical conductors are closely spaced. However, the metal conductor is wound in a spiral shape on an insulating material so that there are no contact points with each other. Consists of.

The invention will now be described in detail with reference to illustrated embodiments.

Brief description of the drawing Figure 1 is a perspective view of the contact rail with a monitoring board installed, and Figure 2 is the contact rail of Figure 1. Figure 3 shows an enlarged cross-sectional view of the contact rail with a metal conductor helix on the inner rail. 4 is a cross-sectional view of the contact rail of FIG. 3, and FIG. 5 is a partial side view of the contact rail of FIG. Figure 6 is an enlarged view of the inner rail having a coating layer as a conductive solid member. Figure 7 shows an inner rail diagram with two strip-like electrical conductors. Figure 8 is a drawing of an inner rail with a grid mesh as an electrical conductor. , 9.10.11 respectively show a thin conductive track and thicker contact members at the side edges. The cross-sectional view, side view, and plan view of the inner rail having FIGS. 12 to 15 are respectively , cross-sectional view, side view, top view and Developed Figure 1 and Figure 16 are side views of the contact rail with guard plate and lowered guard. 1 is a schematic diagram showing the principle of finding a board;

BEST MODE FOR CARRYING OUT THE INVENTION The contact rail 1 shown in FIG. It extends through the slit 2 (shown broken in the slit area). Thread 5 (example) The warp threads (for example, warp threads) extend through the eye 4 of the guard board 3, and when the threads break, the guard board 3 descends onto the contact rail 1.

The contact rail 1 has grooves 7 holding the inner rail 9 separated by an insulating material N8. It consists of an outer rail 6 having on its upper edge. The structure is clearer from the enlarged cross-sectional view in Figure 2. Let's find out.

The outer rail 6 and inner rail 9 are electrically conductive and prevent the device from stomping when cutting the thread. They are conductively coupled by the descending monitoring board 3 so as to be induced. Figure 1.2 Contact The functional principle of the rail applies to all the embodiments of FIGS. 3 to 16. Figures 1 and 2 Various embodiments of the inner rail will be described with details not shown in FIG. Figure 3.4 In the case of the embodiment, a metal conductor 11 is placed on an insulating member 10 having a rectangular cross section. It is wound in a helical pattern with extremely small intervals to avoid contact. metal conductor la The center body 11 has a constant cross section in the longitudinal direction and is preferably made of chromium nickel steel. It is formed by winding a strip of material. The strip material itself is a strip material attached to 1° of the insulating member. It is essentially longer than the inner rail 12 formed by winding the inner rail 12. The electrical resistance of the inner rail is many times greater than that of a solid rail of equal length, which has almost zero electrical resistance. resistance (for example, 20 to 100Ω). Insulating member 10 and metal conductor spiral body The inner rail 12 is made of heavy metal 1 and has a flat cross section as a whole. It is held on an outer rail 13 which has a U-shaped configuration when viewed, and is connected to an inner rail 12 and an outer rail. An insulating material Fi14 is provided between the conductor 13 and the conductor 13.

Since the interval between turns of the metal conductor helical body 11 is smaller than the material thickness of the monitoring plate 3, the thread The monitoring board 3 that is lowered during cutting is always connected to the metal conductor helical body 11 and the outer rail 13. Connect electrically. Inner rail 12 with metal conductor spiral body 11 and outer side As is well known, the rail 13 electrically couples the inner rail 12 and the outer rail 13. It is closed by a monitoring board 3 which forms the conductor of an electrical circuit that stops the loom.

The inner rail 15 shown as a modified example in FIG. coating (e.g. vapor deposited or plated) to achieve high resistance values suitable for the above measurement methods. It consists of an extremely thin conductive layer 17. This layer is formed by rolling or pasting. It can also be configured. This layer must cover the entire surface.

As shown in FIG. 6, a solid bar 18 made of conductive material is used as the inner rail. You can also In this case, the above materials are prepared with sintered metal or carbon-based. Prepare as a base. Furthermore, conductive synthetic resins can also be used. this kind of The inner rail made from the material has an inherently higher electrical resistance than the metal bar. All you have to do is do it.

The inner rail 19 shown in FIG. A thin electrical conductor 22 was installed that extended along the entire length of the building and came into contact with the descending monitoring board 3. It consists of an insulating member 20.

The inner rail 23 shown in FIG. It consists of a body-made lattice mesh 25.

In the embodiment of FIGS. 9-11, the inner rail 26 has a It has an electrical resistance that can be extracted as a measurable value at each point in the rail length. The thin conductor path 28 that extends across the lowered monitoring board 3 and both long sides that do not come into contact with @ It consists of a flat insulating material 27 provided with protection against heavy loads. This electrical conductor path 28 is closely connected to the upper long edge of the insulating member 27 via the electrical conductor 30, however. , and are connected to contact members 29 which are successively provided at small intervals from each other. this place If the contact member 29 has a larger material thickness and surrounds the upper edge of the insulating member, the resulting mechanical The conductor track 28 used for the measurement can be constructed extremely thin. contact The member 29 is defined by an inclined surface, as in the case of a helical body, and therefore Contact with the monitoring board is guaranteed at all times. This is the side view in Figure 10 and the side view in Figure 11. This can be understood from the floor plan.

In another embodiment, the inner rail 33 shown in FIGS. 12-15 has a constant cross section. An insulating section provided with a conductor path 35 that extends continuously in a straight line in the vertical and horizontal directions of the wall. It consists of material 34. In the case of the helical body 11 shown in Fig. 3, the conductor path is also and extends in a straight line in the horizontal direction. However, the conductive path is configured in a meander shape. In the case of the example of the rail 33 shown in Figs. 12 to 15, the conductor path also changes in this way. ing. The purpose is always the same: to install long conductor tracks on a given rail length. There are many things. As is clear from Fig. 13, the meander-shaped electrical conductor path is It extends around the insulating member 34 except for the side surfaces. The first part of the rail surface including the conductor track. As is clear from the development diagram in Figure 15, contact with the monitoring board is made at each point along the rail. For the reason mentioned above, the conductor path is tilted at the upper edge of the rail that comes into contact with the monitoring board. It is slanted (see Figure 14).

FIG. 16 shows that when using the contact rail according to the present invention, the contact rail falls on the contact rail when cutting the thread. The principle of the method for positioning the lowered monitoring board is schematically shown. The contact rail l is It has the structure shown in Figures 3 to 15. Furthermore, a group of monitoring boards 3 are shown. The monitoring board is In reality, they are arranged very closely on the contact rail. The contact rail 1 is shown in FIG. As shown, it extends through the slit 2 of the monitoring plate 3. Warp thread 5 that hooks the monitoring board extends through the eye 4 of each monitoring board 3. The monitoring board shown in the center of Figure 16 is It is lowered onto the contact rail 1 for cutting. Several meters including a very large number of monitoring boards This lowering guard plate must be positioned on a contact rail of Torr length. The inner rail of the contact rail, which is not In addition, the electrical resistance can be extracted as a measurable value at any point along the rail. Based on the principle of an electrical measuring bridge, the entire length of the inner rail is The resistance value of the electrical conductor extending from one end of the rail to the monitoring board that drops down from one end of the rail. The ratio of the partial length of the conductor to the resistance value can be calculated. As shown in Figure 16, full length! has a resistance value R, and the partial length f has a resistance value R5. resistance value ratio The principle of the electrical measuring bridge used for this purpose is known. In Figure 16 , the power supply 40 of the bridge is electrically connected to the contact rail 1. 41 is “sa” 43 is an amplifier, 44 is an A/D It is a converter, and 45 is a display device. This display device performs digital display. , in this case, the distance 11 between the end of the rail and the monitor board that can be lowered is the number as a length dimension. Value can be read. As a supplement, for example, the leveling rod attached to the thread monitor Alternatively, using a tape measure, find the distance value read from the display device on the above staff and write it. Then, a monitoring board that can be lowered can be used to find the yarn cut point.

The loom is stopped by a monitor board that can be lowered. Relay 46 behind amplifier 43 The switch 47 is activated to stop the loom.

The digitized data for display is transferred from the A/D converter 44 to the interface. It can be sent to the data processing system via the chair 48. In the above data processing system , for example, collect data from a group of looms equipped with warp monitoring devices and determine the frequency of yarn breaks. , evaluate the above data regarding the cutting location, etc. From a processing technology and economic point of view The advantages derived from the above-mentioned possibilities are as important as the rapid detection of thread breaks.

fDV Copy and translation of amendment) Submission (Article 184-7, Paragraph 1 of the Patent Act) March 1988 22nd Mr. Kunio Kogawa, Commissioner of the Patent Office 1. Display of patent application POT/GB 86100102 2. Name of the invention Contact rail for electric thread monitor 3. Patent applicant Name Grob & Company Akchengesellschaft Representative Tips Ho, Bernhard Mueller, Walter Nationality: Switzerland 4. Agent 5. Date of submission of written amendment November 16, 1987' The scope of the claims 1. Both extend through the slits of multiple monitoring plates provided on the thread, and when the thread is cut, both Mutually isolated rails that are electrically conductively coupled to stop the equipment by means of a guard plate in contact with one rail. Electric yarn monitoring of textile machines with two mutually parallel electrically conductive rails bordered In dexterous contact rails, one of said rails is made of a homogeneous material over an insulating member. An electrical conductor is installed that increases linearly over its length and is arbitrary along the rail. have an electrical resistance that can be extracted as a measurable value at each point of A contact rail featuring:

2. Has a constant cross-section, is essentially longer than the rail length, and is in the sewing direction of the rail and Electric conductor paths (11, 35) that extend continuously and linearly in the lateral direction are connected to the insulating member (10). , 34) The contact rail according to claim 1, characterized in that the contact rail is installed on .

3. Installed on the insulating member (10) and continuous in the sewing direction and lateral direction of the rail A conductor path extending in a straight line forms a helical body (11). The contact rail according to item 2 of the scope of interest.

4. Installed on the insulating member (34) and continuous in the sewing direction and lateral direction of the rail. The conductor path extending in a straight line has a meander shape (35). A contact rail according to claim 2.

5. The inner rail (12, 15, 19, 23, 26, 33) is connected to the insulating member (10 , 16, 20° 24. 27. 34) installed on the electrical conductors (11, 17, 22 , 25, 28, 29, 35) or Contact rail as described in paragraph.

6. The inner rail (12) and the flat insulating member (10) are in contact with each other. A metal conductor helical body (11 ) The contact rail according to claim 3 or 5, characterized in that the contact rail comprises:

7. Claim No. 7, characterized in that the metal conductor helical body (11) is made of a strip material. Contact rail according to item 6.

8. The strip material of the metal conductor helical body (11) is made of chromium nickel steel. A contact rail according to claim 7.

9. The flat metal conductor spiral body (11) wrapped around the insulating member (10) has a U-shaped cross section. It is characterized by being fixed to the groove of the shaped outer rail (13), preferably by pasting with glue. A contact rail according to claim 6.

10. One rail (15) has a conductive layer (17) coated on an insulating member (16) ( For example, a claim characterized in that it has a vapor deposited layer, a plated layer, a rolled layer, a bonded layer) Contact rail according to scope 1.

11. One rail (19) extends on both sides of the long upper edge of the insulating member (20). Claims characterized in that it has an electrical conductor (22) installed on a slope (21) The contact rail described in box 1.

12. One rail (23) consists of an electrical conductor installed in an insulating member (24) Contact according to claim 1, characterized in that it has a grid-like mesh (25). rail.

13.One rail (26) does not come into contact with the monitoring plate (3) of the insulating member (27) It is installed on the long side and taken as a value that can be measured at any point along the rail. An electrical conductor track (28) having an electrical resistance that can be produced, and an electrical conductor track (28) having an electrical resistance that can be spaced apart lines each having a material thickness greater than that of the electrical conductor tracks (28); and a contact member electrically coupled (30) to the electrical conductor track (28). A contact rail according to claim 1, characterized in that:

14. In the use of the contact rail according to any one of claims 1 to 13, In order to find the position of the monitoring board that contacts both rails when the thread is cut, the resistance value of the entire length is determined. and the resistance value of the partial length of the rail from one end of the rail to the monitoring board that contacts the rail. A use characterized by measuring the ratio of and displaying it as an interval measurement.

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Claims (16)

[Claims] 1. Both extend through the slits of multiple monitoring plates provided on the thread, and when the thread is cut, Mutually isolated rails that are electrically conductively coupled to stop the equipment by means of a guard plate in contact with one rail. Electric yarn monitoring of textile machines with two mutually parallel electrically conductive rails bordered In a dexterous contact rail, one rail increases linearly over its length. , can be extracted as a measurable value at any point along the rail, and gold A contact characterized by having an electrical resistance many times that of a rail made of metal bars. rail. 2. One rail (12, 13, 15, 19, 23, 26, 33) is an insulating member (10, 16, 20, 24, 27, 34) having an electrical conductor installed above A contact rail according to claim 1, characterized in that: 3. of constant cross-section, essentially longer than the rail length, in the longitudinal direction of the rail and Electric conductor paths (11, 35) that extend continuously and linearly in the lateral direction are connected to the insulating member (10). , 34), the contact rail according to claim 2, characterized in that the contact rail is installed on . 4. It is installed on the insulating member (10) and is continuous in the vertical and horizontal directions of the rail. Claim characterized in that the conductor path extending linearly forms a helical body (11). The contact rail according to item 3. 5. It is installed on the insulating member (34) and is continuous in the vertical and horizontal directions of the rail. The conductor path extending in a straight line has a meander shape (35). A contact rail according to claim 3. 6. The inner rail (12, 15, 19, 23, 26, 33) is connected to the insulating member (10, electrical conductors (11, 17, 22, 25, 28, 29, 35) Contact rail according to item 3. 7. The inner rail (12) is in contact with the flat insulating member (10) so that the windings do not touch each other. A metal conductor helical body (11) installed on the above-mentioned member and having a constant cross section A contact rail according to claims 4 and 6, characterized in that the contact rail comprises: 8. Claim 7, characterized in that the metal conductor helical body (11) is made of a strip material. Contact rail as described in section. 9. The strip material of the metal conductor helical body (11) is made of chromium nickel steel. A contact rail according to claim 8. 10. A flat metal conductor spiral body (11) wrapped around an insulating member (10) has a cross section of U. It should be noted that it is fixed, preferably glued, to the groove of the letter-shaped outer rail (13). 8. A contact rail according to claim 7, characterized in that the contact rail has the following characteristics: 11. One rail (18) is made of conductive material (e.g. sintered material, carbon or The contact rail according to claim 1, characterized in that it is made of a conductive synthetic resin material). Rules. 12. One rail (15) has a conductive layer (17) coated on an insulating member (16) ( For example, a claim characterized in that it has a vapor deposited layer, a plated layer, a rolled layer, a bonded layer) Contact rail according to scope 2. 13. One rail (19) extends on both sides of the long upper edge of the insulating member (20). Claims characterized in that it has an electrical conductor (22) installed on a slope (21) The contact rail described in item 2 of the box. 14. One rail (23) consists of an electrical conductor installed in an insulating member (24) Contact according to claim 2, characterized in that it has a grid-like mesh (25). rail. 15.One rail (26) does not come into contact with the monitoring plate (3) of the insulating member (27) It is installed on the long side and taken as a value that can be measured at any point along the rail. An electrical conductor track (28) having an electrical resistance that can be produced, and an electrical conductor track (28) having an electrical resistance that can be spaced apart lines each having a material thickness greater than that of the electrical conductor tracks (28); and a contact member electrically coupled (30) to the electrical conductor track (28). A contact rail according to claim 2, characterized in that: 16. In the use of the contact rail according to any one of claims 1 to 15, In order to find the position of the monitoring board that contacts both rails when the thread is cut, the resistance value of the entire length is determined. and the resistance value of the partial length of the rail from one end of the rail to the monitoring board that contacts the rail. An application characterized by determining the ratio of and displaying it as an interval measurement.