JPS60194107A - Drawing apparatus - Google Patents

Abstract

PURPOSE:To inspect the abnormality in the amount of attached oil in the preceding step, by using an oil-abnormality detection device for the detection of the abnormality in the amount of attached oil, and attaching the device to the yarn guide after the preceding oiling apparatus and before the feeding roller to start the drawing of the yarn. CONSTITUTION:The yarn Y is applied with pretreatment oil by the oiling apparatus 1, subjected to the two-stage drawing by the pretension roller 2, the preheating rollers 3,3', and the drawing rollers 4,4', 5,5', and applied with other oil by the after-oiling apparatus 6. The abnormality in the amount of the attached oil is inspected on-line by placing the oil-abnormality detecting device 8 to the stable yarn guide B after the oiling apparatus 1 and before the preheating rollers 3,3'.

Description

[Detailed description of the invention]

[Field of Application] The present invention relates to drawing equipment that applies different types of oil before and after drawing, and in particular direct drawing equipment (hereinafter referred to as direct drawing equipment for technical fibers) that produces thick denier synthetic 4M sets for industrial use such as tire cords. This article relates to a stretching facility suitable for (omitted). [Prior art] Recently, in direct stretching equipment for technical textiles, in order to improve the adhesion to the rubber of tire cords, a method called a pretreatment method is used in which an epoxy compound or an isocyanate compound is added before the culm after the stretching heat treatment. A method of applying an oil agent (-1) is adopted. Even in this case, conventional oil agents are necessary to improve the winding appearance and post-processability, but this is called after-oil and is applied after the stretching heat treatment (rolling). In this way, in drawing equipment where two types of oil are applied before and after the drawing heat treatment, the amount of oil applied in the first stage is extremely important, but the amount of oil applied in the first stage is extremely important. Abnormalities are smoothed out in the after-oil section, and even if the product is removed, the amount of adhesion is measured, and -C control is performed, the adhesion of the oil agent in the previous stage, that is, the adhesion, is maintained. The purpose of the present invention was to solve the current situation, and therefore,
The aim is to provide stretching equipment in January that will enable online correction of abnormalities in the amount of oil adhering to the front stage. [Object and structure of the invention] The above-mentioned object is achieved by the present invention as follows. In other words, the present invention provides a lubricant abnormality detection device for detecting an abnormality in the amount of lubricant adhering to the yarn guide downstream of the oiling device in the previous stage and before the supply roller where drawing begins, in a drawing equipment that applies lubricant before and after drawing. This is a drawing facility that is characterized by the fact that it is equipped with. In particular, in the drawing equipment in which a tensioner is installed in the yarn guide, an oil abnormality detection device is installed in accordance with Japanese Patent Application Laid-Open No. 56/169853.
No. 57-25406, the resistance-type detection device measures the electrical resistance between electrodes that are in contact with the yarn at a distance C between the legs, and the electrodes are electrically conductive. Guide'
Although it is installed as a G4 tensioner in the yarn guide, it has the same configuration as conventional drawing equipment and can monitor the Δ-line of the lubricant shield Φ without causing any trouble in terms of yarn quality or the work surface of the belt. It has the advantage of being able to Hereinafter, details of the present invention will be explained based on embodiments with reference to the drawings. FIG. 1 is a front view showing an outline of the direct rolling equipment for J-fiber according to the embodiment. In the diagram, there is d3, and 1 is A illing 菰i! 'f, 2
3 and 3' are preheating rollers, 4 and 4' are the first stretching rollers, 5 and 5' are the second stretching rollers, and 5 and 5' are the second stretching rollers.
A drawing roller, 6 is an after-oil device (1;] nozzle part of a hanging A-oiling device), and 7 and 7' are cooling rollers, which are discharged from spinning equipment (not shown) and cooled 7. II
The stretched yarn Y is treated with a pretreatment oil in an oiling device 1, and after its tension is adjusted by a tension roller 2, it is heated by a preheating roller 3. It is stretched in two stages with a second stretching roller 5.5', and then a second oil agent is applied to the after-measuring device 6C.
It is cooled by cooling rollers 7, 7' and formed into a package by a winding device (not shown), as is well known. 8 in the figure is an oil abnormality detection device that detects an abnormality in the amount of oil applied by the oiling device 1 in the previous stage. Installed in stable yarn guide B before rollers 3 and 3'

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It is. In addition, the thread guiding points may be set at Δ, C, and D in the other stable thread guiding area of B, and for workability etc. or B
is preferred. By the way, the oil abnormality detection device 8 includes the above-mentioned known resistance-type detection device, two conductive guides 81a having a constant interval provided as a control knob for adjusting the tension of the yarn as shown in the figure, What is the configuration of 81b as an electrode?
There is. The details of the configuration will be explained below with reference to FIGS. 2, 3, and 4. FIG. 2 is a perspective view of the entire structure, and FIG. 3 is a perspective view of the entire structure. FIG. 4 is a front view and a plan view showing details of the conductive guide portion. In the figure, 81a and 81b are conductive guides made of 5iC (silicon carbide), etc., with a diameter of 8 mm, and are fixed to the holder 82 at regular intervals, specifically 25 mm apart. Guide 81a (8
1b) must be insulated, and the conductive guide 81a (8
1b> is a metal piece 83a (83b) I, which is fixed with a set screw 84a (84b), and then inserted into the mounting hole 82a (8211) of the holder 82 with an insulator 85a (8511) such as Bakelite interposed therebetween.
It is fixed by a screw 86a (86b not shown). 88a (88b) is a lead wire connected to the metal piece 83
Screw 87a (8711>) on the rear of a (83b)
'r is fixed -C. The structure of the oil abnormality detector 8 is as described above, and includes a conductive guide 81a (81b), a metal beef 83a (83b), and L' feet 8.
4a (8411) and screw 87a (87b)
The resistance of the yarn Y running on the conductive guides 81a and 81b can be measured from both ends of the leads FA188a and 88b. There is. FIG. 5 is a circuit diagram showing an example of a gastric air resistance measuring circuit between lead wires 88a and 88b. In the figure, at d5, Vln is a high-voltage DC power supply, R+, R2, and R3 are resistors, and C1 is a conductor.In the example, Vin=500V. R+ = 1 M(i, R2 = 200!:;!,
I<3='! IOK Ω. C+=22μF. The high-voltage DC power supply group is applied to the yarn Y, low resistance +, and Rz connected in series, and the yarn Y
If the resistance of R2 changes, the current flowing through resistor R2 changes, and R
2 Since the voltage at both ends changes J, the resistance change of the yarn Y is the resistance 1
(You can detect the voltage at both ends of 2 (V2), but actually the yarn of 1000 denier (¥J crystal denier) is 750
If the vehicle is run at more than 'rrLZ, the voltage signal (2) becomes unstable, so the smoothed output voltage signal vout is monitored as shown in Fig. 6 through an integrating circuit consisting of a resistor R3゜condenser 'J'CIJ: are doing. By the way, if the upstream electrode is grounded, the static electricity on the yarn Y is removed and the measurement is stabilized, so it is preferable to ground the upstream conductive guide 81a. In Figure 5, resistor R1 suppresses the current flowing through the circuit, preventing a serious accident even if the operator accidentally touches the conductive guides 81a and 81b.
This is to prevent this from happening. In reality, the output voltage signal VO1jt output from multiple oil abnormality detectors is A/D.
Microphone 1-]] is inserted into the converter system, and the average value of vO over a certain period of time is calculated for each detector, and an abnormal signal is output when the average value exceeds a certain set value (changes). By the way, as mentioned above, it is well known to measure the electrical resistance of the yarn to monitor the lubricant (= I), but in reality, as shown in Figure 6, the output signal is unstable. However, according to the experience of the present inventors, it is difficult to detect minute fluctuations in the amount of lubricant 1. However, according to the experience of the present inventors, it is difficult to supply lubricant to the oiling device 1 when the lubricant adheres to the oil that causes problems in the market. IC1 when the thread is clogged and stops or the thread is out of its normal surplus capacity.
I! The extreme situation that occurs in the mountains with a 4-pitch oil agent @Bun'i 7P; We discovered that the above-mentioned advantage was achieved and arrived at the above-mentioned configuration.It is sufficient for practical use to detect abnormalities in the number of oils during such changes, so we actually installed two oils in tandem. The two yarns are passed through one i+It agent abnormality detector 8 at 11 and γ, and the Although the parallel resistance is overlooked, it is possible to sufficiently detect the individual threads.The present invention is as described above, and is a rotating two-stage oil ring stretching installation for online monitoring of oil adhesion abnormalities. The effect of being able to monitor abnormalities in the amount of oil applied in the previous stage was extremely popular. Applicable to general drawing equipment.
Also, as the oil abnormality detection device, a resistance type detection device or other known devices can be applied. Furthermore, in the resistance type detection device, the material and shape of the conductive guide, the mounting means, etc. may be changed as necessary, and the tip of the kite may be covered or coated with an insulating material to prevent electric shock. Further, the measuring electric circuit is not limited to that shown in FIG. 5, as long as it substantially measures the resistance between the conductive thread guides.

[Brief explanation of drawings]

FIG. 1 is a front view of a direct rolling gear for technical textiles showing an embodiment of the present invention, in which numeral 1 denotes an oiling device at the front stage, and numeral 8 denotes an oil abnormality detector. Figure 2 is a perspective view of the oil abnormality detector 8.
, 81b is a conductive thread guide. 3 and 4 are a front view and a plan view showing the means for attaching the conductive thread guide 81a, in which 83a is a metal piece, 85a is an L insulator, and 88a is a lead wire. FIG. 5 is a circuit diagram showing an example of an electric circuit for measuring the resistance between conductive guides, and FIG. 6 is a waveform diagram of the output signal V; of the electric circuit of FIG. 1971 <"March 14 [] ! 1 Temple Seiji Office Ai Kangi Q 1, Koto A'1 Display Extension Facility Representative Okamoto Sa 4 Parts" -

Claims (1)

[Scope of Claims] 1. An oil abnormality detection device that detects an abnormality in the amount of oil adhering to the yarn guide downstream of the oiling device in the previous stage and before the supply roller where drawing begins, in a drawing equipment that applies oil before and after drawing. Stretching equipment characterized by the provision of. 2. The drawing equipment according to claim 1, wherein the oil abnormality detection device is a resistance type detection device in which electrodes are conductive guides provided as tensioners at regular intervals C on the yarn guide.