| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Apparatus for automatically centering an endless band trained over two rolls | US841752 | 1977-10-13 | US4173904A | 1979-11-13 | Silvio Repetto |
| In an apparatus wherein an endless band is trained over a stationary guide roll and a stretching roll, and a nut-and-spindle mechanism at the ends of the stretching roll can displace the stretching roll in a plane defined by the axes of the rolls when the band is centered on the rolls, the band is automatically centered by two hydraulic double-acting cylinder-piston units. The first unit displaces either end of the stretching roll in the plane and the second unit simultaneously displaces one end in a plane perpendicular thereto. This displacement is effected in response to a control signal from a sensor adjacent each side edge of the band and tripped when the side edge moves into contact therewith as the band moves out of its centered position. The control signal operates a three-way solenoid valve in a hydraulic control circuit for the cylinder-piston units. | ||||||
| 22 | Follower roll suspension system | US491231 | 1974-07-24 | US3966106A | 1976-06-29 | Adu Randpalu |
| A follower roll or so-called spring roll system for use with a paper machine has a roll about which the paper web passes on its path through the machine, the web having a wrap angle about the roll of about 90.degree., to exert a horizontal force component against the roll, due to web tension. The roll bearings are each supported on a low friction slide, to permit substantially friction free displacement of the roll horizontally. The position of each roll bearing housing is controlled by an air bag acting as a variable rate spring to oppose displacement of the roll under web tension, with a second air bag opposed thereto, acting as a constant rate displacer, to assist the displacing effects of web tension. The two bearing housings are synchronized in their displacement under web tension variations by a synchronizing shaft extending across the width of the machine and connected with each of the two bearing housings by a rack and pinion arrangement. Rotation of the synchronizing shaft in response to a displacement of the spring roll due to a change in web tension produces a change in a potentiometer or other control device connected with the synchronizing shaft, which potentiometer is connected in speed controlling relation with the paper machine drive, to correct the speed of the machine so as to maintain substantially constant the tension in the web. | ||||||
| 23 | Apparatus and method for adjusting the tension of a running web | JP2004166262 | 2004-06-03 | JP4868487B2 | 2012-02-01 | ヴェート イェルク |
| 24 | Papermaking machine | JP333695 | 1995-01-12 | JPH07292593A | 1995-11-07 | BURUTSU HANSUUYURUGEN; FUREMUTO BERUNTO |
| PURPOSE: To provide a papermaking machine having a drying part that keeps the tension of a carrier belt for a paper web always constant in operation, without causing the jamming of paper. CONSTITUTION: This papermaking machine has drying groups A, B comprising plural rolls 30 to 35 and 40 to 44, including a guide roll and a tension roll, and carrier belts 9, 10 traveling over the rolls and forming a continuous loop. The guide roll can be displaced to a location parallel to its axis as well as an angle to the direction of movement of the carrier belt. The guide roll and the tension roll are coupled to each other in such a way that, when the guide roll is displaced, the tension roll is simultaneously displaced in such a direction and to such an extent that the carrier belt tension remains at least approximately constant. COPYRIGHT: (C)1995,JPO | ||||||
| 25 | Press section of papermaking machine and method for decreasing vibration of nip of press section | JP27512790 | 1990-10-13 | JPH03152290A | 1991-06-28 | DEBUITSUDO BUINSENTO RANGE |
| PURPOSE: To decrease the resonance vibrations in a press section by outputting a signal to change a trade line at a specific change rate to a drive means for an adjustable roll for adjusting the direction of the trade line. CONSTITUTION: A controller 60 outputs the signal to adjust the trade line 80 to the electric drive assemblies 55, 71 so that the direction of the trade line 80 changes gradually to prevent the accumulation of the fluctuation of the nip by resonance as felt repetitively passes the nip, and activates a seam linearizing roll 51 and a curving roll 52. The change in the direction of the trade line 80 is executed by the speed change sufficient for minimizing the burring of the felt and the thickness change of the web. | ||||||
| 26 | Drawing apparatus for endless like web | JP9556780 | 1980-07-11 | JPS5615496A | 1981-02-14 | PIITAA PII SUTANISUROO |
| 27 | 포머 | KR1020110146706 | 2011-12-30 | KR101245507B1 | 2013-04-01 | 장인화; 김광태; 이영진 |
| PURPOSE: A former with an air cylinder is provided to control tension of a wire, thereby preventing loosening of the wire. CONSTITUTION: A former comprises a front supporting axis(410), a back supporting axis, a slipper(700), a quench frame(300), a balancing unit, a main frame, and a wire. The quench frame is mounted at the upper end of the slipper and the back supporting axis. One end and the other end of the balancing unit are fixed on the ground and the back side of the quench frame, respectively. The balancing unit maintains balance of the quench frame. The wire is mounted to cover a cylinder mold, the main frame, and the quench frame. | ||||||
| 28 | 특수 섬유지 제조용 와이어벨트의 텐션장치 | KR1020000073066 | 2000-12-04 | KR1020020043401A | 2002-06-10 | 차영주 |
| PURPOSE: Provided is a tension device of a wire belt for producing special textile which is characterized by giving or releasing tension of the wire belt by a shock absorbing member, miniaturizing a structure thereof, decreasing production cost, removing amplifying action of vibration, absorbing fine-vibration by the shock absorbing member, minimizing abrasion and noise of the wire belt, reducing cost of maintenance, improving working condition and being possible to remove the cause of badness of products. CONSTITUTION: The tension device of the wire belt is comprised of: an adjust lot(240) connected with a main body and protruded in the straight direction by a handle device(250); a shock absorbing member(220) connected to the adjust lot(240); a connecting roller(230) connected and installed to a lower part of the shock absorbing member(220); and a guide member(210) guiding the shock absorbing member(220) and translocating the connecting roller(230) into the straight direction. | ||||||
| 29 | Installation with at least one continuous conveyor belt for conveying materials and products | US14614441 | 2015-02-05 | US09302853B2 | 2016-04-05 | Klaus Bartelmuss |
| A conveying installation has least one endless conveyor belt guided via a plurality of rollers along a leading belt run for conveying material or products and a returning belt run, particularly for manufacturing a paper web with a wire belt or felt belt. At least one of the rollers has an adjustable mounting for adjusting and correcting a direction of movement of the conveyor belt. A tensioning unit for detecting and controlling a tension of the conveyor belt has a pressure-measuring apparatus disposed at the adjustable mounting. A movement correction unit for detecting deviations of a direction of movement of the conveyor belt from a correct movement and for correcting the movement includes a sensor that is disposed to monitor a lateral periphery of the conveyor belt. A sensor output of the sensor is used for adjusting the adjustable mounting of the one of the rollers. | ||||||
| 30 | System and method for utilizing a linear sensor | US12322855 | 2009-02-06 | US20100199475A1 | 2010-08-12 | Robert J. Tremblay; William M. Silver; Michael C. Moed |
| Systems and methods for utilizing linear optoelectronic sensors are provided. A plurality of linear sensors may be utilized to obtain velocity measurements of a web material at two points. The acceleration of the web material may be determined from the velocity measurements and a control signal issued to a servo to maintain proper tension along the web material. | ||||||
| 31 | Temporary changes in the properties of papermachine clothing | US11258129 | 2005-10-26 | US20060194490A1 | 2006-08-31 | Mark Hodson; Torben Schlieckau; Arved Westerkamp; Berry Brockoetter |
| Method for changing properties of papermachine clothing, in particular a dryer fabric. The papermachine clothing is processed specifically, primarily in the transverse direction of the clothing, for the purpose of evening out the properties of the fabric. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way. | ||||||
| 32 | Device and method for regulating the tension of a running web | US10861838 | 2004-06-05 | US07059984B2 | 2006-06-13 | Joerg Vaeth |
| A device serves to regulate the tension of a running belt. The belt is deflected on rollers of which one is designed as a force measuring roller and is connected to a displacement sensing device. This roller is provided with at least one force sensor that determines the force applied to the belt. In addition, this roller is position adjustably held by an actuating drive in order to be able to adjust the tension of the belt. The actuating drive is in an operative connection with a regulating device that is influenced by a correction device. This correction device determines the web tension from the force applied to the belt measured by the force sensor and from the position of the force measuring roller, that changes with the position of the tension regulating roller, and transmits this output as an actual value to the regulating device. | ||||||
| 33 | Device and method for regulating the tension of a running web | US10861838 | 2004-06-05 | US20040245363A1 | 2004-12-09 | Joerg Vaeth |
| A device (1) serves to regulate the tension of a running web (2). The Web (2) is deflected on rollers (6, 7, 8, 9, 15) of which one is designed as a force measuring roller (15) and tension regulating roller (18). This roller (15, 18) is provided with at least one force sensor (16) that determines the bearing force (F). In addition, this roller (15, 18) is adjustably held by an actuating drive (13) in order to be able to adjust the tension of the web (2). The actuating drive (13) is in an operative connection with a regulating device (21) influenced by a correction device (17). This correction device (17) determines the web tension from the bearing force (F) measured by the force sensor (16) and from the looping, that changes with the position of the tension regulating roller (18), and transmits this web tension as an actual value to the regulating device (21). | ||||||
| 34 | Apparatus and method for tensioning a fabric in a paper machine | US189115 | 1994-01-27 | US5587052A | 1996-12-24 | Jukka Autio; Timo Kujala |
| An apparatus and method for tensioning a fabric in a paper machine, such as a press felt, a drying wire, or an equivalent fabric, including a tensioning roll arranged inside a loop of the fabric. Bearing supports of the roll are fixed, at the driving side and at the operating side of the machine, to sledges. These sledges are displaced by a motor, synchronously in relation to one another, so as to tighten the fabric that runs over the tensioning roll to a certain tension. The sledges are arranged in connection with the frame part of the machine on linear guides, which can be loaded in different directions transverse to the direction of movement of the sledges. In view of displacing the sledges, shafts operated by a motor are journalled on the sledges. The shafts are interconnected by a synchronization shaft between the driving side and the operating side. | ||||||
| 35 | Paper machine drying section | US372009 | 1995-01-12 | US5517766A | 1996-05-21 | Hans-Jurgen Wulz; Bernd Fremdt |
| A paper machine dryer group has a plurality of rolls, including a guide roll and a tension roll, and a carrier belt traveling over the rolls and forming a continuous loop. The guide roll can be displaced to a location parallel to its axis as well as at an angle to the direction of movement of the carrier belt. The guide roll and the tension roll are coupled to each other in such a way that, when the guide roll is displaced, the tension roll is simultaneously displaced in such a direction and to such an extent that the carrier belt tension remains at least approximately constant. | ||||||
| 36 | Apparatus for stretching an endless web | US57201 | 1979-07-13 | US4256537A | 1981-03-17 | Peter P. Stanislaw |
| Apparatus is provided for stretching and tensioning an endless web, such as a blanket or felt for papermaking machines. The apparatus includes a trackway having at least one movable stretch roll mounted thereon and movable relative to a work station for supporting and stretching the endless web or blanket. The movable roll is supported on a movable carriage arrangement at each end of the roll, with the carriage arrangement at one end including a first carriage section and a separable second carriage section. The first carriage section includes a device for lifting one end of the movable roll, and the second carriage section is connected to a saddle support which is pivoted into position to support the movable roll in the lifted position. The first carriage section is then disconnected from the second carriage section and is rolled away from its position under the movable roll. In this manner, the endless web can then be removed from the lifted end of the roll and replaced with another web. The process is then reversed to move the first carriage section back into position so that the movable roll can be lowered back onto the first carriage section. | ||||||
| 37 | Device for the control of the tension of an endless belt or screen | US721161 | 1976-09-07 | US4077834A | 1978-03-07 | Theo Stark |
| The invention relates to a device for the control of the tension of an endless belt or screen in paper handling machinery by providing a deflecting roller displaceable by two bearings guided in carriages. | ||||||
| 38 | Papermaking machine | US81958759 | 1959-06-11 | US3044542A | 1962-07-17 | JAMES LOYND |
| 39 | Automatic electric control for compensator for felt tension device for papermaking machines | US11770036 | 1936-12-28 | US2244033A | 1941-06-03 | TREMPE WILLIAM J |
| 40 | Control of belt tension in paper machines | US2686725 | 1925-04-30 | US1582322A | 1926-04-27 | WARREN FRANCIS W |
QQ群二维码
意见反馈
意见反馈