• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A system for manufacturing chopped strands of glass filaments wherein a multiplicity of glass filaments are extruded through orifices in the bottom of at least two spinning furnaces and a sizing agent is applied and the filaments are collected to form at least two strands. The strands brought into contact with the circumferential surface of a feed roller through a predetermined angle so as to be drawn and attenuated by frictional force exerted by the circumferential surface of the feed roller while the strands are cut into chopped strands of a predetermined length with a cutter roller in contact with the feed roller. An auxiliary feed roller is disposed adjacent to one end portion of and in axial alignment with the main feed roller and is driven independently thereof. An auxiliary cutter roller is adapted to contact under pressure the circumferential surface of the auxiliary feed roller to rotate therewith. When introducing a strand onto the main feed roller, the auxiliary feed roller is maintained substantially stationary or driven at a relatively low speed while the main feed roller is rotated at a normal attenuation speed, and the strand is wound on and taken up by the auxiliary feed roller. The speed of the auxiliary feed roller is gradually increased to a normal attentuation speed, and thereafter the strand on the auxiliary feed roller is moved onto the main feed roller.
    公开号:SU967273A3
    申请号:SU782637556
    申请日:1978-07-10
    公开日:1982-10-15
    发明作者:Наказава Кодзи；Кикути Тосиаки；Фудзита Тосихито
    申请人:Нитто Босеки Ко.Лтд (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the building materials industry, in particular to the equipment of glass fiber plants.
    Closest to invention 5 in technical essence and the achieved result is a device for producing chopped fiberglass beams, including at least two rotary kilns with holes θ in the bottom, a sizing device, a drive roller with grooves around the circumference, a feed roller and a cutting roller in contact with the outer surface of the feed roller for cutting beams 15 into segments of a given length [1].
    Basically, when operating such a system tufts formed from fiberglass filaments and extruded from the respective rotary kilns approximation zitolno 20 at a rate of 30-50 m / min, the feed roller does not come to necking, which rotates at a high peripheral speed, e.g. pribly- - 25 fine 1500-3000 m / min. Therefore, it is very dangerous to introduce a torn beam onto the feed roller if the system continues to operate. As a result of this, when a broken beam is introduced onto the feed roller, its rotation speed must be reduced either. it must be completely stopped to ensure the safety of service personnel. Thus, entering a torn can result in reduced system performance. In addition, since glass is a thermoplastic material, jets of molten glass that are pressed through openings located in the lower part of the rotary kiln should always be led out under the proper one. 'voltage, allowing them to be thinned into fibers. If the pulling force is removed, the molten glass streams will join into a relatively large ball or knuckles at the bottom of the rotary kiln, and it is very difficult to remove such a glass ball. Therefore, more than two operators are required to ensure satisfactory extrusion of glass fibers from all rotary kilns.
    When the conventional system is put into operation, the beams consisting of glass fibers do not thin, they first come into engagement with the outer surface of the end part of the feeding tube. after which the speed of the feed roller is gradually increased to the normal speed of thinning. After sufficient thinning has been achieved, the beams are fed into the cutting part of the feed roller and the cutting process begins. However, during the cutting process, the untreated fibers, which are caught by the end of the feed roller, gradually dissolve, so the pieces fluff, fly out, fall and can mix with ordinary cut bundles, which leads to a deterioration in the quality of the product. In addition to this, the non-tinted fibers are relatively thick and have increased rigidity. therefore, it is difficult to fully engage or wind them onto the outer surface of the feed roller. Therefore, the beam at some length · tends to move away from the feed roller. * and sways around it at relatively large radii, which is very dangerous for staff One of the attempts to solve this problem is to quickly increase the speed of the feed roller to the speed of normal thinning after the beams are captured by the feed roller, so the length of the section the beam that hits the roller can be reduced as much as possible. However, in this case, the beam is rapidly amplified, and therefore it can also quickly rupture again. In addition, there is 4 place roller wear. Another attempt to solve the same problem consists in directly introducing a non-toned fiber bundle into the cutting part of the feed roller during a gradual 40th increase in the speed of rotation of the roller to the normal speed of thinning.
    With this method, only cut fiberglass bundles, I have-45, are selected as a commercial product. normal thinning. However, in this case, since the unshaded fibers have a relatively large thickness and stiffness, as indicated, the cutting roller must be pressed against the feed roller at substantially high pressures. As a result of this, there is the possibility of getting cut between the cutters; it has a pleasant effect; however, it has both the feed and Further, due to staying on the outer surface of the feed roller coated with a soft material, thick and hard unshaded fibers, corresponding grooves are formed on the surface, which lead to an incomplete segment of the beams. In addition, there are times when bundles are needed. gaps at the edges that the cutting process is unfavorable. Kro-55 place rapid wear and cutting role 60 service personnel mistakenly enter a bundle of fiberglass filaments that are not sufficiently cooled. As a result, the feed roller burns up, and the cutting blades break, and if the cutting blades break, their pieces fly apart at high speed, which poses a danger to the operating personnel.
    The aim of the invention is to increase the reliability of the device, improving product quality without compromising performance.
    This goal is achieved in that the device for producing chopped fiberglass bundles, including at least two rotary kilns with holes in the bottom, a sizing device, a drive roller with grooves around the circumference, a feed roller, and a cutting roller in contact with the outer surface of the feed roller for cutting beams into segments of a given length, equipped with an additional feed roller located coaxially with the main feed roller, an additional feed roller drive, an additional cutting roller, clamps with a force to the outer surface of the additional feed roller, an additional drive roller, a mechanism for moving the additional drive roller parallel to the axis of the main and additional feed rollers and the mechanism for removing the fiberglass bundle from the additional drive roller .. The mechanism for removing the fiberglass bundle is made in the form of installation pins, the number of which is equal to the number of grooves in. the circumference of the main drive roller, located opposite the corresponding grooves, a mechanism for separately driving the mounting pins. The device is additionally equipped with a mechanism for moving the main guide roller and a mechanism for installing bundles of fiberglass parallel to each other and the axis of the main feed roller.
    In FIG. 1 schematically shows a preferred embodiment of the proposed device, a front view with a partial section; in FIG. 2 - the main part of the device, side view (the upper halves of the main and additional feed rollers are cut to show them, as well as pipes designed to exit the cut bundles, to show their inner part) J in Fig. Same, a longitudinal top view (main and additional drive rollers are shown as if they rotate in the same plane in which the main feed roller is located).
    In FIG. 1 shows several rotary kilns 1, mainly four. In each furnace 1, molten glass is made from raw materials or marble melt; from the bottom of each furnace 1, 400 to 2000 holes 3 are made. through which individual flows of molten glass are extruded, from which 400 to 2000 thin glass' fibers are obtained, which then enter the sizing device · 4 with a lubricant, and then they are collected in a beam 5 on the collecting roller 6. In this way, four the beam 5, which pass through the corresponding intermediate rollers 7 to the main guide roller 8. The main guide roller 8 has four grooves 9 located around the circumference along which the beams 5, as shown in ur. 2 and 3, respectively. Then the beams 5 are picked up by the main feed roller 10, being located. separately from each other in parallel. After the contacting of the beams 5 with the outer surface of the main feed roller 10 at a given angle, they are cut or chopped by the main cutting roller 11 into individual bundles 12 of a given length. Cut beams 12 are output via conveyor 13 as a final product.
    The glass fibers 5 are thinned only with the help of the main feed roller, which picks up the beams, due to which the beams are carried away under the influence of friction from contact with the main feed roller 10 at a given angle.
    As can be seen from FIG. 3, the outer surface of the main feed roller 10 is coated with a material having a high coefficient of friction with fiberglass, for example polyurethane, rubber. The main feed roller 10 rotates in bearings 14 on a hollow shaft 15, which protrudes from the housing 16 of the feed roller mounted on the frame 17 , and attached to it (Fig. 1 and 2).
    The main cutting roller. 11, facing the main feed roller 10, is fastened with a nut 18 to a rotating shaft 19, which is mounted on bearings in the torch body 20. The main cutting roller 11 has several knives 21 located around its circumference. Knives 21 are mounted at an angle of 5 to 25® relative to the axis of rotation of the cutting roller 11 at the same distance from each other *. The torch body 20 is mounted movably on two fixed axes 22, supported by two pairs of brackets 23 mounted on the frame 17, so that the torch body can be moved in the direction perpendicular to the axis of the main cutting roller 11. On the bracket 24 mounted on the frame 17 is installed a hydraulic cylinder 25, designed to drive the torch body to move it along the axes 22, thereby pressing it against the main feed roller 10 with a given pressure. This design also allows the use of main feed rollers with different diameters, as well as to compensate for the wear of the main feed roller. The coating of the main feed roller 1CG can be removed for correction or replacement when it is extremely worn. The main supply roller 10 has a pulley 26 mounted on one of its end faces, through which the motor mounted on the frame 17 is driven by the belt 27. The engine 28 mainly has type with eddy currents, the number of revolutions can be adjusted as well as the start time, so that the peripheral speed of the main feed roller 10 can be kept substantially constant even if the diameter of the roller is reduced due to wear coverage.
    An essential distinguishing feature of the present invention is the installation of an additional feed roller 29, as well as an additional cutting roller 30 in addition to the above construction. The outer surface of the additional feed roller 29 is coated with a material. Having a high coefficient of friction with respect to fiberglass, similar to the coating of the main feed roller 10, this roller is attached with a nut 31 to the front end of the shaft 32, connected by bearings 33 to the hollow shaft, 15 ,. which is attached to the housing 16 of the feed roller. A pulley is mounted at the rear end of the shaft 32, which is rotated through the belt 34 by another motor 35 mounted on the frame 17. Preferably, the motor 35 is also of eddy current type, which has the ability to control the rotation speed and starting time. Thus, the additional feed roller 29 is installed near the main feed roller 10 and is centered with it along the axis, this roller .29 can be rotated regardless of the role -. ,, ka 10.
    The additional cutting roller 30 has cutting blades 36, the design of which is similar to the main cutting; mu roller 11, this roller rotates in bearings 37 mounted on a fixed axis 38. At opposite ends, the axis 38 is mounted on the bracket arms 39, which are connected to the end of the rod of another cylinder 40 mounted on the bracket 24 located on the opposite side of the cylinder 25. Thus, the additional cutting roller 30 has the ability * to move toward the additional feeding roller or away from it when the cylinder 40,
    An additional drive roller 41 is located on the side of the mouth of the additional feed roller 29. The additional drive roller 41 is made of a material having a low coefficient of friction with respect to fiberglass, for example, fluoroplastic. The additional drive roller 41 is mounted to rotate on the front end of the rod 42 of the hydraulic cylinder 43 mounted on the frame 17, so the roller 41 is able to mix parallel to the main and ι additional feed rollers 10, 29, respectively, and moves back to a position that is located near the rear end of the main the feed roller 10. In the outer part of the additional drive roller 41 there is a circumferential groove 44 for wiring a fiberglass bundle. The groove 44 is formed by the opposing outer edges of the roller 41, the leading edge around the circumference having a diameter that is smaller than the trailing circumferential edge so that the beam enters the groove 44 and moves easily forward.
    The main guide roller 8 is located on the side of the main feed roller 10, it has four grooves 9 made in a circle, the number of which is equal to the number of cut beams. The main guide roller 8 is mounted to rotate on the front end of the shaft 45. In addition to TorOj, there is a device 46 designed to release the beam trapped in the groove 44 of the additional drive roller, as well as to position the beam in the corresponding groove 9 of the roller 8, the last using 46, beam, the number of which is equal to the number of grooves 9 on the main guide roller 8, and also there are electromagnetic coils (not shown) designed to drive the pins 48, the main guide it is located next to and connected can be removed from the shaft 45 of the bracket 47. The release mechanism has mounting pins 48, so that each pin 48 can pass into the position immediately behind the corresponding beam (not the left side of the beam, as shown in Fig. 3) located / in the groove 9 the main guide roller 8, when voltage is applied to the corresponding electromagnetic coil. Although the main guide roller 8 and the setting device 46 are usually in a predetermined position relative to the main feed roller 10, it is preferable that they are | adapted to synchronously move parallel to the main feed roller 10 in order to be able to change their positions if necessary. The shaft 45, on which the main guide roller 8 is supported, as well as the device 46 for installing the beam at this end face, are supported by two movable bearings 49, which are installed in the housing 50 mounted on the frame 17 ..
    The shaft 51, through a pair of bearings 52, is mounted in the housing 50 on top of the shaft 45. Outside of the shaft 51 there is a thread for a feed screw having a pitch of about 1.25 mm. The motor 53 and the gear reducer 54 are installed in the housing 50, therefore the rotation speed from the engine 53 is reduced by the gear reducer 54, and then the rotation is transmitted to the shaft 51 / via gears 55, 56. On the shaft 51 'there is a threaded slider 57 connected to the clamp 58 wherein the shaft passes 45. Therefore, when the slider is forced to move the motor 53 is rotated forward or backward along Vera 1 -to-rotating shaft 51 depending on engine napravleniya.vrascheniya 53, whereby the shaft 45 is moved forward or backward, thereby changing the position osnovnog about the guide 45 of the roller 8, as well as the installation device 46 for the beam.
    In addition, there are limit switches 59 designed to limit the travel of the main guide roller 8, as well as the installation device 46 for the beam, while preventing its excessive movement relative to the length of the main feed roller 10, i.e. motor 53 is stopped if terminal 58 comes into contact with limit switches / switches 59.
    In the process, as described, glass filaments are extruded through the holes 3 available in each rotary kiln 1, then they enter the sizing device 4 and then are collected in a bundle on the collecting roller 6. Then, the beams 5 pass through the intermediate roller 7 and the main guide roller 8 to the main feed roller 10, so they fall on the main feed roller 10 parallel to each other. The bundles that hit the main feed roller 10 are cut or chopped into pieces 12 by the main cutting roller 11.
    In the event of a rupture of one of the beams 5, an additional feed roller 29 is rotated at a relatively low speed; however, the cylinder 40 is driven, 'moving the additional cutting roller 30 to the additional feed. roller 29, whereby the additional cutting roller 30 is in contact with the additional feed roller 29 and rotates with it. The end of the torn bundle 60, which is in a neat shape, since it was not exposed to the pulling force of the main feed roller 10; pass through the intermediate roller 7, the additional driving roller 41 and sent to the additional feeding roller 29, so the beam 60 is captured by the roller 29 * in the direction a shown in Fig. 3. The torn beam 60, captured by the additional feeding roller 29 in the direction a, is subjected to pulling, as the additional feed roller 29 continues to rotate, therefore, the beam 60 is automatically biased in the directions b and c shown in FIG. 3. Since the additional feed roller 29 rotates at a low speed, the gripping operation must be carried out safely, and it is possible to prevent the sudden application of a large voltage to the beam 60, which can cause the beam to break again.
    After the beam 60 is completely picked up by the additional feed roller 29, the rotation speed of the roller 29 is gradually increased to the point where the driving force applied to the beam 60 will ensure its normal thinning. During this operation, the beam 60, picked up by the additional feed roller 29, is continuously cut or chopped by the additional cutting roller 30. The problems that occur if the rotation speed of the feed roller is increased without cutting the beam 60 can be overcome. The chopped beams produced by the additional cutting roller 3 0 fall into the underground mine 61 via the .62 channel separately from the normal chopped beams that are carried away by the conveyor 13.
    '·
    When the rotation speed of the additional feed roller 29 reaches the normal speed of thinning, the cylinder 43 retracts the additional drive roller 41, so the beam b0 can move from the first position, when it is next to the additional feed roller 29 and to the side of it, to the second position, when it is near and sideways from the main feed roller 10. When the beam 60 reaches the second position and is centered with the corresponding groove 9 of the main guide roller 8, then the beam 60 is in contact with the pin 48, respectively of the existing groove, since the pin 48 is already in the protruding position when voltage is applied to the corresponding electromagnetic coil. With the further withdrawal of the additional drive roller 41, the beam 60, which is now restrained by the pin 48, leaves or is freed from the additional drive roller 41 and enters the corresponding guide groove 9 of the main guide roller 8 under its own tension, so the beam can be prepared for cutting into normal pieces beam 12. The exit of the beam 60 from the additional drive roller 41 is performed without any difficulties, since the beam, departing from the roller, is rolled along the front circumferential edge, having which, as described, has a smaller diameter.
    'When the bundle 5 pushes into the corresponding groove 9 of the main guide roller 8, the voltage to the corresponding electromagnetic coil is cut off, so the mounting pin 48 is retracted to its original position, while the additional cutting roller 30 moves away from the additional feeding roller 29, the rotation of which stops , and the additional drive roller 41 returns to its original position, it is ready for the next operation. The signal for energizing the electromagnetic coil for pulling the mounting pin 48 comes from the corresponding rotary kiln 1, the beam of which is broken.
    • It should be noted that during the introduction of a torn beam 60, normal or whole bundles 5 continue to be captured by the main feed roller 10 and cut by the main cutting roller 11, so there is a very slight decrease in the output of the cut beams 12.
    Although the principle of operation has been described with respect to introducing a broken beam, it is obvious that the invention can also be applied to introducing beams at the start of operation of the system for producing chopped beams. In this case, the signals are fed sequentially from the rotary kilns 1, therefore, the electromagnetic coils are sequentially energized to insert the mounting pins 48, bringing each other into contact with the beams 5 in the manner described; those. the mentioned principle of action is repeated for each beam. For such repeated operations, an automatic regulatory system can be applied; as well as for the subsequent movement of the additional cutting roller 30 from the additional feeding roller 29, as well as for stopping the rotation of the roller 29.
    It should be noted that the application of the invention to the introduction of beams when the system is put into operation gives the advantage that the cutting of the beams 5 captured by the main feed roller 10 starts without waiting for the completion of the introduction of the last beam.
    I '
    In addition, an advantage of the present invention is that the effective lengths of the main feed and main cutting rollers 10, 11 are fully used, since the main guide roller 8 and the installed device 46 are moved parallel to the main feed roller 10. In this regard, if the beams 5 are captured the main feed roller 10, always occupy the same position, then the coating of the main feed roller 10 and the knives 21 of the main cutting roller 11 will wear out in the corresponding areas. This leads to incomplete cutting of the beams, as well as their tearing and obtaining flakes, the same occurs when the pulling force decreases due to the slipping of the beams over the coating, and the normal thinning of the beams is violated. When each bundle consists of 800 strands of fiberglass with a diameter of 13 microns and is cut when passing at a speed of approximately 1200 m / min, this phenomenon occurs 3-4 hours after the device starts to work, which can be observed for the fluffing of the beams. Therefore, it is necessary to turn on the engine 53 at appropriate time intervals to drive the main drive roller 8, as well as the device 46 for installing beams, so that the main sections. the feed roller 10, with which the beams · are in contact, were shifted by 35 m along the axis of the feed roller. This is repeated, so the bundles 5 can pass along the entire effective length of the main feed roller 10. For this operation, you can apply: an automatic control system by pre-setting the time and distance intervals when moving the beams.
    In addition, the continuous drive of the main feed roller during the operation of the system not only increases the productivity of the production of cut beams, but also eliminates the need for a large starting torque in the main engine, and also minimizes 1 torque change during operation, thereby reducing wear of the surface of the feed roller and cutting knives, as well as providing a significant increase in the period of stable operation of the system.
    Although the present invention has been described with respect to cutting or chopping four beams 5, it is understood that the number of beams in the invention is not limited to 20. and can be applied when the number of beams being cut is more than two.
    1.5
    权利要求:
    Claims (1)
    [1]
    1. Japanese Patent No. 50-27089 / class. 42 E 1, 1975.
    S4 S3
    Fig.Z
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    BR7804440A|1979-05-02|
    DE2829314C3|1981-02-12|
    GB2000760B|1982-01-06|
    DE2829314A1|1979-01-18|
    TR19920A|1980-04-30|
    AU499498B2|1979-04-26|
    IT7868628D0|1978-07-10|
    NL169300B|1982-02-01|
    CA1097920A|1981-03-24|
    PT68269A|1978-08-01|
    ZA783827B|1979-07-25|
    ES476539A1|1979-07-16|
    CS214667B2|1982-05-28|
    BE868879A|1978-11-03|
    SE7807748L|1979-01-12|
    GB2000760A|1979-01-17|
    NL169300C|1982-07-01|
    NZ187766A|1981-10-19|
    ES471562A1|1979-10-01|
    DK309278A|1979-01-12|
    FR2397370A1|1979-02-09|
    NL7807045A|1979-01-15|
    JPS5438926A|1979-03-24|
    FR2397370B1|1982-12-03|
    JPS57257B2|1982-01-06|
    DE2829314B2|1980-05-22|
    US4175939A|1979-11-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2601352C1|2015-06-23|2016-11-10|Открытое акционерное общество "Научно-исследовательский институт энергетических сооружений"|Method of modifying coarse fibre from industrial wastes for production of construction fibre|US3815461A|1972-10-26|1974-06-11|Johns Manville|Apparatus for chopping strand|
    JPS5027089A|1973-07-11|1975-03-20|
    JPS5027090A|1973-07-11|1975-03-20|
    US3869268A|1973-12-11|1975-03-04|Ppg Industries Inc|Method and apparatus for chopping fibers|US4194896A|1978-08-28|1980-03-25|Owens-Corning Fiberglas Corporation|Method and apparatus for forming glass filaments|
    GB2034772B|1978-11-20|1982-08-25|Pilkington Brothers Ltd|Apparatus for chopping fibres|
    US4347071A|1978-11-24|1982-08-31|Tba Industrial Products, Limited|Apparatus for production and cutting of glass fibres|
    US4268292A|1979-09-24|1981-05-19|Owens-Corning Fiberglas Corporation|Method and apparatus for forming glass filaments|
    US4344786A|1981-01-02|1982-08-17|Owens-Corning Fiberglas Corporation|Method and apparatus for gathering strand material|
    US4355438A|1981-02-17|1982-10-26|Owens-Corning Fiberglas Corporation|Mat forming apparatus|
    US4551160A|1984-10-22|1985-11-05|Owens-Corning Fiberglas Corporation|Method and apparatus for forming glass filaments|
    DE3518769C2|1985-05-24|1987-04-30|Glaswerk Schuller Gmbh, 6980 Wertheim, De|
    JPH03118958U|1990-03-22|1991-12-09|
    US6202525B1|1998-02-25|2001-03-20|Johns Manville International, Inc.|Chopping apparatus|
    DE19919297C2|1999-04-28|2002-01-24|Schuller Gmbh|Method and device for producing a strand-like composite of glass fibers|
    FR2804974B1|2000-02-16|2002-06-28|Vetrotex France Sa|SYSTEM FOR MANUFACTURING THERMOPLASTIC CUT WIRES|
    FR2872154B1|2004-06-28|2006-08-04|Saint Gobain Vetrotex|INSTALLATION OF AUTOMATIC SOCKET|
    FR2876392B1|2004-10-07|2006-12-15|Saint Gobain Vetrotex|SYSTEM FOR THE MANUFACTURE OF CUTTING WIRES|
    US7252026B2|2005-07-06|2007-08-07|Johns Manville|Strand oscillator assembly for choppers and method|
    FR2888838B1|2005-07-22|2007-10-05|Saint Gobain Vetrotex|INSTALLATION OF AUTOMATIC SOCKET|
    FR2916003B1|2007-05-11|2009-08-21|Saint Gobain Vetrotex|SYSTEM FOR THE MANUFACTURE OF THERMOPLASTIC CUT THREADS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP8285577A|JPS57257B2|1977-07-11|1977-07-11|
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