the maximum package size is 420 mm in diameter. The driving Many peripheral equipments concerning Fiber Manufacturing system of these large-sized high speed winders adopts a Machinery were exhibited this time. For example, Herberlein type suitable for high speed except 800 series (4,500 m/min). exhibited Hema Jet LB-02 (Fig. 12) air jet nozzle. This type of Murata Machinery exhibited 742B using the friction nozzle is efficient for low air consumption and suitable for wide driving system (Fig. 11). Its bobbin holder is 920 mm in length count ranges (350-700 dtex). In friction texturing disc units, FAG exhibited FTS4714 (Fig. 13) which adopts a single driving system different from FTS47I having a tangential driving system. This unit has the advantages of less noise and less irregular rotation (1-2%).

6. Summary No marked interesting developments appeared at the booths for Fiber Manufacturing Machinery in the 3rd OTEMAS compared with ITMA'83. One of the main trends of the exhibits this time was the quest for further automation and higher quality to answer the recent demands for the production of a smaller quantity of products of a wider variety. This shows that the efforts to introduce the tech- nology of electronics will make a profitable return for machine makers.

Fig. 11 Murata Machinery, 742B and the maximum package size is 400 mm in diameter. Machinery

5. Peripheral Equipment Jyuzo Hosokawa Faculty of Educaion, Shiga University

1. Introduction

As compared with the 2nd OTEMAS in 1981, a large number of machine makers exhibited so many kinds of and their accessories belonging to the spinning process. Main trends of this exhibits are the development of further automation and the recent demands for the production of small quantity and wide variety. Main machines and the accessories exhibited in relation to the spinning process will be as follows.

2. Preparation of Spinning

2.1 Blowing-room process Two bale feeders for blowing machines are exhibited; one is from Nihon Spindle Mfg. Co., Ltd . and the other is from Ohtori Kiko-Trutzchler. "Bale Opener" from Nihon Spindle is Fig. 12 Herberlein, Hema Jet LB-02 basically as an opener with a rotating turn table on which 12 to 20 bales can be loaded. Cotton fibers picked and opened by the opener roller located above the bale is pneumatically sent to the next process. The opening process by the teeth rotating at high speed provides uniform tufts and requires no operators except in bale arrangement. Thus, "Bale Opener" provides the features of labor saving, compactness and easy handling . Compared with the conventional feeders of Trutszschler , Reiter and Marzoli, the uniqueness of this type is in moving the bale by the turn table. Continuous opening operation , improve- ment of mixing quality and energy saving are achieved by the turn table rotation. Only the fact that the opener roller picks up cotton from the same hight of bales and can not control this hight might be some disadvantage (Fig. 1). Ohtori-Trutzchler exhibited their Blendomat BDT, an head of which moves back and forth above the bales lined up in the appointed position. When the head, while picking cotton, moves

Vol. 32, No. 3 (1986) 61 Special features of each card are described as follows. "Exactacard" DK 715 is widely reputed to be one of the most developed card and has following main features (Fig. 3).

Fig. 1 Feeder "Bale Opener" (Nikon Spindle) up to the last bale in one direction, it goes back to the first starting position quickly. There seems to be a slight disadvantage in this discontinuous picking motion. They also exhibited a series of machines belonging to the blowing process and a machine interconnected as shown in Fig. 2. In Fig. 2, LVSV means Fan Condenser, BES: Feeeding Unit, SRS 6: Step cleaner, Do: D type Opener, MTV 1: Transport fan and DK 715: Exacta- card (Trutzschler). Blowing Room Machinery Model TOH made by Ohara Iron Works and Toyoda Automatic Loom Works is a product by the aid of technical cooperation with Hergeth Hollingsworth. The main features of this machine are the revolutional non-lattice system and the free-nip opening mechanism. These have been developed exclusively by Ohara and do not use any bottom lattice and spiked lattice. Fig . 3 "Exacta card"" DK715 (Trutzschler)

Very stable steel construction for very high speed driving. 2.2 Carding process (1) There were two automatic card feeders displayed, i.e. New (2) Electronically-controlled individual driving for producing Non-Lap Card Feeder by Nihon Spindle Mfg. and Extra FBK by the best quality silver. Programming of three independent delivery speed commands. Ohtori Kiko. The former is an improved model of Non-lap Card (3) Feeder, providing features of large capacity meeting with high (4) former, Webspeed for high speed sliver gathering. Carding segment and Web Cleaner KR (Fig. 4). speed card feeding and easy access for maintenance. (5) FBK type III by Ohtori Kiko, a reformed feeder from FBK type I, has a similar chute system, and was displayed in connection with a series of blowing-room machineries. The main improve- ment is in regulating cotton tufts by air current. Actually, well opened tufts by BDT mentioned before are fed into Card Feeder FBK III through the blowing-room. In the bottom reserve chute of FBK III, the density and the level of accumulating tufts are con- trolled over its full width by means of the air compressed fan in FBK III. In the carding process, "Exactacard'' DK 715 by Trutzchler, CM 80 type by Howa Machinery, Nitto Unicard CH-W type designed by the tandem carding system, High Speed and High Production Testing Card by Kanai Juyo Kogyo and 25 D-Mettal- lic Carding Machine by Chiba Iron Works for a special use were exhibited.

Fig. 4 Web cleaner KR (Tutzschler)

Fig. 2 Blowing-room machineries and the card interconnected. (Ohton-Triitzschler)

62 Journal of the Textile Machinery Society of Japan CM 80 by Howa Machinery is opened to the public for the by N. Schlumberger. The other is a high-speed comber first time in Japan. Its main features are as follows. Model PSE 10 running at 200 nips/min (without bur-knift), made (1) Tough framing, (2) High precision cylinder and by Sant' Andrea Novara. made of steel plate, (3) Cylinder under-casing made of light alloy, (4) Improved doffer speed-change mechanism and (5) 2.4 Drawing process Specially designed short-fiber extracting device which is pro- In the cotton system, drawing frames by Ishikawa Seisakusho, vided at the outlet of the flat. Short fibers floating above the Hara Shokki, Howa Machinery and Rieter Machine Works were cylinder are discharged positively to improved the sliver quality. exhibited. Nitto Unicard is designed by the tandem carding system, but LDF draw frame with an auto-leveller by Ishikawa Seisakusho has an individual driving and measuring roller systems on both the mechanism is independently built and each device is fixed by a unit system. Therefore maintenance is as easy as a single card. right and left delivery parts of one head. By measuring the initial test drawing, the aimed grain of the sliver can be set by an easy The web doffing device (Uni-doffer), having extremely simpli- fied construction and consisting of one fluted roller and a pressure and precise touch with the help of digital display on the control box. The draft part by 4/3 system (4 over 3) comprisesthe curved blade, improves its web stripping efficiency even at high speed doffing. contact with the pressure bar. This mechanism is said to contribute Kanai Juyo Kogyo, which is not belonging to carding machine to improve U% remarkably through the exact drafting. The im- makers but i$ a main carding wire maker, displayed and made a proved cleaning effects with smooth air flow by the pneumatic trial run of a high speed and high production testing card on an suction prevent lint accumulation on the drafting part etc. The maximum delivery speed of the sliver is up to 400 m/min. experimental basis. Main features of this testing card are; (1) Metallic wires on the cylinder and the doffer, (2) Flat card D-400 MT, D-400 MS and CD-500 N by Hara Shokki were showed. D-400 MT has 1 head and 2 deliverlies and its maximum clothings, (3) Specially designed stationary flats set on both sides of the cylinder, viz. the taker-in side and the doffer side, and (4) sliver delivery is 400 m/min. A newly developed D-400 MS has 1 head 1 delivery and its maximum speed reaches 500 m/min. newly developed toothed mote knives instead of the conventional ones. In practice, the maximum cylinder speed is limited to 450 CD-500 N is designed for the combination with 4-12 carding rpm, and the production is also less than 200 lbs/hr in Japan. machines. However, it is reported abroad that many carding machines are High speed drawing frame with an autoleveller, Model DFK achieving high productivity over 2401bs/hr. From the standpoint made by Howa Machinery has 1 head 2 deliveries and 3 lines of various producing conditions including the raw cotton supplied pressure bar drafting system which uses 3 over 3 rollers with a and the sliver qualities required, it is difficult to compare directly turning roller. The unique roller arrangement can draw slivers of these figures mentioned above. But, it is a fact that the remodelled high quality with all fibers of cotton or man-made in the a high speed and high production card by Kanai could be driven lengths up to 76 mm. This type of machine is able to control both satisfactorily with such high efficiency as the maximum cylinder short term and long term viriations by means of electric sensors on speed is 650 and the maximum production reaches 200 Ibs/hr. the feeding elements and measuring trumpets of delivery ele- 250 D-Metallic Carding Machine by Chiba Iron Works which ments. The sensor and control parts are ADC mode! made by is not belonging to the spinning process is suitable for making Zellweger Uster with control ability within ±25%. A simplified fillings of futon, cushion and non-woven fabrics. Auto Leveller which can control only long term variation is also available. 2.3 process The quality of the sliver thus produced is expected to be im- The Preparatory Machine for Comber by Hara Shokki Seisaku- proved, although the delivery speed of DFK is comparatively sho, Combers for cotton by Toyoda Automatic Loom Works and high and the maximum is 600 m/min. China Textile Machinery, and rectilinear combers for wool by N. The new Rieter high-performance drawframe D 1/1 suitable Schlumberger & Cie. and Sant' Andrea Novara were exhibited. for quick and precise compliance to various staple lengths yields HAILAP HL 85 A by Hara Shokki combines a sliver lap excellent CV% even at speed up to 800 m/min. Its new drafting machine with a Ribbon lap machine as a form of Lap-Former. arrangement enables the draft change without changing pinions, Winding speed of a lap is 85 m/min and the maximum lap weight that is, from outside by means of two-hand cranks on the central reaches 50 lbs (23 kg). Besides, Superlap SL-35A with pre- gearing block in which a quick-change gear for the total draft is drawing was exhibited. These two machines are not based on new located. The gear changes for delivery speed are likewise ac- mechanism, but aim at the exact preparation for high speed and comodated accessibly in the gearing block. The new drafting high production combing. system of D 1/1 is a completely new design brought into line CM 10 comber for fine count and high quality by Toyoda with current adjusting techniques, and offers an operator con- Automatic Loom Works, is so designed that it works satisfactori- venience with its four bottom rollers in fixed bearings and five ly with the exact combing in each part of machine. For instance, top rollers guided and suspended in two bows. By opening the top the combing cylinder has 14 rows of needles embedded and the guide bow, all top rollers are lifted clear so that the drafting (press plate) nipper presses and controls unstable fibers. Nips per system is completely open and accessible for attendance. minute are 150-.230/min. Only two companies showed cotton combers. One is from China Textile Machinery which exhibited Model FA 251 A first in 2.5 Gilling process and bobiners Japan. Its entire drive gears as well as the linked mechanism 2.5.1 Machines belonging to gilling process are accomodated to run in an oil bath, thus ensuring perfect In the gilling process, Osaka Kiko, Chubu Seiko and N. lublication. Schlumberger & Cie. put their own products on display. For the rectilinear combing process, two companies exhibited Super High Drafter SHD-2 type by Osaka Kiko which applies their products; one is a worsted comber type PB 29 LF, delivery 2 zone-drafting system, consists of an intersecting gill part in the into l can with a crimper box and a noise insulating hood, made first zone, and of a specially designed drafting part in the 2nd

Vol. 32, No. 3 (1986) 63 zone. In this system it can produce 5-12 g/m slivers from 200- the transformation system has approached nearly to per- 300 g/m slivers with the drafting ratio of 22-50 through only one fection, but the renovation cost will become an difficult question process. Accordingly, the remarkable feature of this system can to be solved in the near future. be said to save several steps by supplying the sliver directly to the The conversion of the speed frame is made by Sanyu Boki. bobbiner. Main conversions are as follows; (1) Lift-up to increase the lift, PB Gill PBG-3 type in PB Gill series by Osaka Kiko is widely (2) suspended flyers from spindle type flyers, and (3) new devices used for spinning synthetic or synthetic/wool fibers in worsted or such as winding tension compensating device and irregular roving semi-worsted spinning system after making improvements on preventing device. These conversions make use of the characteris- many points. The main features are to be able to change each unit tic of the conventional frame. with each other on these machines belonging to this series. So, this system meets the recent demands for the production of smaller 3. Spinning quantity and wide variety. The soft starting mechanism enables high production at high faller speed of 7,000 drops/min with the 3.1 process minimum injuring of fibers. Toyoda Automatic Loom Works, Howa Machinery, OM Super-speed dual-drive Leveller SLD by Chubu Seiko adopts a Machinery Company, Suzuki Sangyo as machine makers and rotary gilling system which has SDL's computer-aided dual drive Kanai Juyo Kogyo, Nihon Spindles Mfg., SKF of Japan and mechanism, and performs unprecedented levelling effects. Its Daiko Seisakusho as component-part makers put their products main features are; (1) excellent levelling, (2) easy operation, (3) on display. Since there were so many makers exhibited, the maintenance free, (4) super high speed (max. 300 m/min) and (5) atmosphere showed signs of activity in business. One of the easy draft change. largest features in the 3rd OTEMAS is to link those processes of GC 12 Chain Gill by N. Schlumberger has following main roving, spinning and winding. Complete automation in these features; (1) high productivity, (2) easy maintenance and (3) processes had been accomplished by the combination of the simple adjustment. Taking a concrete example, it can be easily roving process with the spinning process after finishing the carried out to change the draft ratio, the feed speed, the delivery combination of the spinning process with the next winding speed and the tension. process. 2.5.2 Bobbiners Besides, component-part makers have a tendency to express Two kinds of Bobbiners were exhibited by Osaka Kiko and their effort in the development of parts and accessories in order to Sant' Andrea Novara respectively. High-speed Finisher HF-5 type respond the demand for the production of smaller quantity and equipped with Automatic Ball Doffing Device by Osaka Kiko has wider variety. almost the same mechanism as that shown in the 2nd OTEMASS Ring spinning frame Model RY5 by Toyoda Automatic Loom except a newly designed Ball Stock apparatus. Works was exhibited and connected directly to an automatic High speed rubbing finisher, Model SFS by Sant' Andrea winding machine Autoconer by Schlafhorst through Model SAD. Novara has 8/10/12 heads and 16/20/24 balls, equipped with an The ring frame was driven at the spindle speed of 2,000 rpm autodoffer and Luwa type pneumatic cleaning system. This and equipped with Stationary Auto Doffer Model SAD which is machine is used in the spinning preparation section for processing economical and highly reliable. The stoppage time of this frame in doffing can be reduced within 2 min. In case of Ring Frame all-wool fibers, flax, silk, synthetic and blends. It is profitable for UA 33 F by Howa Machinery, complete automation is accom- dealing with variaty of products in small quantity. plished by the direct connection to Mach Coner by Murata Ma- 2.6 Roving process chinery. Its spindle speed can be increased to the practical con- In the cotton spinning system, Howa Machinery, Toyoda stant rate above 20,000 rpm. These are two types of auto , Automatic Loom Works and Sanyu Boki exhibited their products Model HAD of the wagon type and Model HBD of built-in type belonging to the roving process. for doffing all spindle bobbins simultaneously. They are properly Among these mentioned above, Simplex fly frame by Howa used depending on the purpose. and Roving frame FL 16 by Toyoda Automatic Loom Works can Ring spinning frame Model AL-M for large package by OM be equipped with the wagon type Auto doffer. On comparing Machinery Company egipped with a wagon type doffer was ex- the wagon type with the conventional built-in type doffer, the hibited and driven by the direct connection to the automatic spin former can be attached more easily on the existing fly frame, winder No. 7 II Link Coner by Murata Machinery. It can spin since the doffer body and the carrier have been designed and coarser yams with a wide range of counts. Moreover, the spin- made very compact. With the aid of the bobbin carriage system nable count range can be expanded without changing the for over-head transportation, full bobbins as well as empty sliver weight. The 6-roll, 2-zone high draft system permits high- bobbins can be exchanged easily regardless of the installation ly increased productivity and the produced yarn is used for space. By the adoption of the main fly frame and the wagon type making carpet and others. Since the information on end breakage doffer, the roving transportation from the roving frame to the ring in the winding process is immediately fed back to the ring frame, frame can be automatized easily. Great merits obtained by the all yarn faults can be minimized during transfer and handling of automation mentioned above are as follows, (1) labor saving, bobbins between the spinning frame and the winder. (2) reduction of the number of space bobbins and (3) easy produc- Suzuki Sangyo (Rep. Nitto Shoji) exhibited a ring spinning tion of a small quantity of products by the easy changing opera- frame for worsted and synthetic fibers, Model NC which is tion. characterized by a simple mechanism and less maintenance In regard to the main body of the fly frame, the following im- services. proved points can be indicated. (1) Flyer speed, (2) Automatic Ring spinning frame Model FA 503 made by China Textile bobbin changing device, (3) Oiling system, (4) Drafting mecha- Machinery with Electro-Automatic Doffer Model Au 513 A-205 nism and the disconnecting device for irregular bobbins. was exhibited. But this frame has no distinctive feature to be dis- On the whole, the automation in the roving process including cussed. However, it is recognized that the technical progress in 64 Journal of the TextileMachinery Society of Japan this field in China is being made steadily. tronic length measuring, end break monitoring, and prints out the Kanai Juyo Kogyo, one of the largest textile machine com- most important data for the best spinning. Universal Spinning ponent makers in Japan made a trial run of a high speed spinning Unit converts any raw materials up to 60 mm staple length into testing machine at the spindle speeds of 25,000-30,000 rpm to better quality yarns. All spinning elements are grouped together spin polyester/cotton 50's yarn. In order to drive the spinning in a compact spinning box which may be dismantled while the frame at such a high speed, the special attention should be paid to machine is running, so that maintenance jobs can be performed materials made of and machining process used for making rings, without interfering spinning. The realistic rotor speed are up to travellers and parts. For examples, ceramics and high carbon 80,000 rpm. steel are used for increasing hardness. Special diffusion and Automatic Open-End Spinning Machine Model AR by Toyoda permeate treatment (R-5 treatment) to metal are applied for im- Automatic Loom Works is said to be able to spin superior yams proving wear-resistance. As the textile machinery parts, Tough- from low grade by using a newly designed spinning unit at mat Travellers (Metal), KH treated Nylon travellers, SG-L the rotor speed of 60,000-90,000 rpm. Its new automatic piecer Toughmat Flange Rings, Porous Sintered Metal Rings, Self- and an automatic doffer enable to spin smooth yarns without no- Lubricating Rings, Snail Wires, Wavy Balloon Control Rings, ticeable piecing points. Model AR was made by Toyoda Auto- Cleaning Soakers for Porous Sintered Rings and Slider-Rings matic Loom Works with the aid of technical cooperation with were exhibited. Schlafhorst and Suessen in West Germany. Nihon Spindle Mfg. exhibited rings, spindles, frame automatic 3.3 Other spinning machines control systems, pneumanize PN and someothers. Spindles are Excepting Ring and Rotor Spinning Machines, Super-high improved for high speed operation, durability and economy. Speed air-jet spinning frame Murata Jet Spinner (MJS) No. 801 SSQ ring is suitable for medium and coarse yams thicker than by Murata Machinery, Air Jet Spinning Machine: Model TYS by 40's. Uniform and specially treated surface of these rings reduces Toyoda Loom Works and Fasciated Spinning Frame: Model FS friction of travellers. SSQ-L with Self-Lubrication mechanism by Howa Machinery were put on display. Various improvements and of small friction is most suitable for spinning fine count are made on MJS No. 801: for example, it is able to spin cotton rich yams. SSQ-C with harder flange surfaces shows its efficiency in yarns, cotton 70%/polyester 30%, or 100%. Its drafting system spinning thick yams or yams requiring heavy travellers. FAC was improved to fit cotton fibers. From the standpoint of yam frame automatic control system is deigned to obtain uniform and quality, many efforts are made to get yarns similar to ring spun precise chase motion and smooth automatic operation for provid- yarns. Spinning speeds up to 180 m/min are obtained, and pro- ing uniform winding. ductivity is larger than the conventional one. Automatic devices SKF of Japan exhibited an roving stop motion for worsted or such as automatic knotters, automatic doffers, yarn checking cotton fibers, a adjustable spindle unit, and individual motor devices during operation, data collection and automtic package drive spindles. handling systems were equipped completely. Daiko Seisakusho (Rep. Nitto Shoji) exhibited Automatic Air Jet Spinning Machine: Model TYS by Toyoda Automatic Ultraviolet-Ray Rubber-Roller Treatment Machine and Full- Loom Works is characterized by Units (12/side) and spinning Automatic Buffing Machine. speeds up to 180 m/min. The automatic piecer equipped with 3.2 Rotor open-end spinning process TYS can spin almost perfect yarns without any visible piecing Schlafhorst, Rieter and Toyoda Automatic Loom Works ex- points. The auto-doffing apparatus is wagon type is also fixed. hibited and illustrated the handling method of their machines Fasciated Spinning Frame: Model FS by Howa Machinery by demonstration. seems to be similar in construction to Jet Spinner mentioned Autocoro by Schlafhorst (Rep. Rudolf Shokai and C. Itoh above, but is a fasciated spinning, ON-1000E for worsted spinning group) is an Automatic Rotor Spinning and Winding Machine TRI spinning frame having a combing roller system in stead of the having such perfect functions as high rotor speeds up to 90,000 drafting system. A displayed machine made on an experimental rpm, regular fault-free piecing by a piecing carriage, automatic basis is similar in construction to that for practical use, but its doffing when the package diameter or the length reaches a pre- details were not made public. determined value. Especially, in regard to piecing and cleaning, were exhibited. They are spinning and twisting frames developed following particular features can be mentioned: The piecing to meet new demands for making composite and fancy yarns. carriage travels along spindles and checks whether or not piecing Parafill for producing special yarns by Suessen and Fancy Yarn is necessary. Cleaning and piecing devices are separate on the Machine Model: GDM MK3 by Gemill & Dumsmore were also same carriage, and operate simultaneously at the spindle. At exhibited. every piecing, the rotor is cleaned by mechanical and pneumatic 4. Automatic Winding Process means; in addition the opening unit and the doffing tube are cleaned by air blow. The electric piecing tester checks the thick- Two kinds of autowinders by Murata Machinery and by ness of each piecing. If any piecing is outside the tolerance, Schlafhorst are displayed connected with spinning frames by operation is repeated. Because the piecing is automatic, it is other makers. Auto winder, Mach Coner No. 7-II by Murata possible to spin fine counts at high rotor speeds. Strong and in- Machinery is so designed that it can deal with a variety of prod- divisible piecing enhances the quality of yarn packages. ucts in smaller quantity. Furthermore, the process is modernized OE Rotor Spinning Machine 2/1 (Rep. Kaigai Tsusho) by by automatic handling from spinning to after-winding process. Rieter is a highly improved system, perfectly through-out techni- New devices such as the automatic maintenance system, the auto- cally. This machine is characterized by efficient productivity, matic package inspection system and the spinning inspector were high performance, easy attendance and maintenance with mini- outstanding. The automatic maintenance means to check whether mum supervision required. Especially, Spinning Robot performs splice strengths are within the normal yarn strength or not. The rotor cleaning, yam piecing, doffing and tube fitting; computer- winding unit is stopped automatically when the strength is lower controlled, selfmonitoring. Rotor Control System performs elec- than normal. The automatic package inspector checks packages in

Vol. 32, No. 3 (1986) 65 place of the visual checker. The spin inspector can tell the spindle AUTOBAL, Full-automatic Twist Counter, Optical Hairiness No. producing a bad quality bobbin, at which the yarn-cut by the Counter, Yarn Evenness Analyzer. clearer is excessively large. These informations are given by the bar code on the bobbin tray and displayed on a CRT. Besides 6. Conclusion above mentioned, new active developments were as follows: new The 3rd OTEMAS in 1985 was a splendid show at its new site yarn finders, new materials (for example, ceramic cutters), free in Osaka. floor layout, travelling cleaner and automatic packing by a robot. The outstanding improvements in the spinning and the winding The other machines displayed were auto-winder No. 7-II Link processes at this show are represented by the automatic transpor- Coner linked directly to a spinning machines (Fig. 5), auto- tation between roving, spinning and winding processes with the winder No. 7 R-II Mach Coner (for large bobbins), auto-winder developed computerized control system. Labor saving through No. 7 R-II Mach Mini and Centralized Monitoring System this program-controlled system becomes the forcus of attention (M.M.M.). in spinning and winding process including their preparation. In regard to the testing instruments for fibers and yarns, various inspectors were displayed together with precision and high per- formance accessories which are essential to spinning and winding processes. As an overall, along with the apparent trends towards higher speed and more automation, newly designed technical mecha- nisms and their combinations have brought the fruition of today's technology. I believe firmly that further cooperation of makers with users and their untiring efforts will contribute to make rapid progress in the through technological innova- tions.

Fig. 5 Link-Cover (Murata)

Autoconer GKW-P-DX/50 and Auto-spin-Cover GKW-P-X/ 10 (connected with Toyoda Ring Spinning Type RY5) were ex- hibited by Schlafhorst (Rep. Rudolf Shokai and C. Itoh group). Doffed full bobbnsby the automatic doffing device are transported to the individual unit of the winder with a flat conveyer belt. A and its Related Machinery highly efficient winding operation can be achieved by regulating this doffing interval and the time required for winding full bob- Toruo Ishida bins. Main features of these Autoconers are electronic test of Industrial Research Institute of Ishikawa yam joints irrespective of splices or knots. Package density, uniform yam strength are also maintained. 1. Introduction Several winder makers such as Kamitsu Seisakusho, Murao The contest between air-jet looms (AJL) and rapier looms (RL) Boki exhibited their winders not connected with spinning frames. was one of the highlights at the 3rd OTEMAS. Compared with Kamimat No. 580 Auto winder, LLE Double Coner and SSP the 2nd STEMAS in 1981, the number of looms exhibited in- Precision Winder by Kamitsu Seisakusho, and MBK automatic creased and their performance progressed. Cop Feeder type: ACF-B, MBK Automatic Cop Feeder type: It was evident that AJL and RL are to be the most attractive to ACF-C and MBK Bobbin Loader type: BLM-2S by Murao Boki weavers at present. Moreovers, loom makers are very keen to the were displayed. development of AJL or RL as their best cards to increase their business. 5. Testing Instruments Figure 1 shows the percentages of different types of looms ex- Makers of testing instruments exhibited were Zellweger- hibited at the OTEMAS '76, '8 1, '85 and ITMA '83. One can say Uster, Siegfried Peyer, Keisokki Kogyo, Shikibo Electro- that shuttle looms (SL) are now bought only for special markets, Mechanics Dept. and someothers. Uster exhibited many kinds of and the technical progress of water-jet looms (WJL) and gripper testing apparatuses belonging to raw materials and spinning looms (GL) seems to have reached a stage of maturity. processes. Main testing apparatuses are as follows. (1) Sliver- Moreover, the Japanese market for WJL is shared by only two Data: On-line quality control and data system for the process makers, i.e. Nissan and Tsudakoma, and GL is monopolized by prior to spinning. (2) UPG-Tensorapid Classimat II for testing Sulzer. yam strength. (3) Automatic Draft Control-ADC Model (2) for The present task for these loom makers may be to protect their levelling the sliver in the drawing process by Auto-Leveller. market shares from the offensives of AJL and RL. The present Peyer exhibited Fiber length measuring instrument-Peyer recession of synthetic filament fabrics in Hokuriku District is Texlab AL 100, Fiber fineness measuring instrument- Peyer caused by the over production from WJL. Hence, even the scrap- Texlab FDA200. Keisokki Kogyo exhibited Evenness Tester; ping of WJL is discussed now. This is why the WJL markers did Model KET-80B, Yarn Fault Classifying Installation: Model not excite very great attention at the OTEMAS '85. CFT II, Automatic Yarn Count Determining Syetem Even so, the general features of weaving machinery and their ''TEXCAL'' . Shikibo exhibited Full-automatic Yam Strength related equipment exhibited were 1) high speed, 2) verstaility, 3) Tester: ST-200A, Full-automatic Yam Balancing System: automation, and 4) extensive application of microelectronics.

66 Journal of the Textile Machinery Society of Japan