• 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:
    The fabric rolling unit comprises a pair of tangential fabric-rolling rollers (10, 11), one of which is a driving roller (10) and the other one is a driven roller (11), with the axes of said rollers (10, 11) being parallel to each other and horizontal, on which rollers either the beam (18) tangentially rests, on which the fabric roll (R) is wound, or the same fabric roll (R) respectively rests. In order to make it possible large-diameter fabric rolls (R) to be obtained, the beam (18) is supported in a freely revolutionary way at the upper ends of the stems (26, 27) of two vertical hydraulic cylinders (28, 29). Inside the upper chamber (32, 33) of these cylinders (28, 29) a constant pressure is preset, whilst inside the lower chamber (34, 35) of said cylinders (28, 29) the pressure is controlled and varied by means of a proportional valve (47) controlled, in its turn, through an electronic circuit, by a load cell (41) which constantly monitors the variable load (Cy) applied by the beam (18) and by the fabric roll (R) during the rolling process, so as to keep constant the load (Ck) applied to the cell (41).
    公开号:SU1727528A3
    申请号:SU894613649
    申请日:1989-02-24
    公开日:1992-04-15
    发明作者:Готти Массимо
    申请人:Формиа Нуова (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to coiling plants operating through a tangential winding drive system.
    Devices for tangentially winding material into a roll are known, which are used to form rolls of material produced on weaving looms and similar machines. These units mainly include, in addition to the guide and tensioning systems, two tangential rollers for winding material, one of which is the driving roller, the other - the slave, so located. that their axes are horizontal and parallel to each other. At the beginning of the winding process, a rod is laid on the rollers, and during the winding process, a roll of material that forms on the rod is quiescent. The ends of the rod, which can freely rotate around its own axis, do not have supports, but are directed inside vertical guides with the possibility of moving vertically upwards as the diameter of the formed roll of material increases. Drive rod and roll material during formation to complete the rotator sj
    Yu
    4 SL
    to
    00
    WITH
    This movement is carried out by tangential friction with respect to the rollers which are rolled up on the material, on which it is freely supported by its own weight.
    These types of material coiling plants are widely used in industry and produce rolls of regular shape material with a diameter of 1000-1200 mm or more. If necessary, coils of larger diameter can be obtained in the case of winding thin and / or low-strength materials. However, with an increase in the diameters of the coils, the weight of the coil increases accordingly, therefore, effects arise that endanger the tangential winding system and degrade the quality of the material winding, especially in the case of thin materials. In addition, it is difficult to obtain rolls of material whose final geometry is within narrow tolerances.
    The purpose of the invention is to improve the quality of winding.
    This goal is achieved by the fact that in a device for winding a material comprising two tangential rollers for winding a material, one of which is a driving roller and the other is a follower, arranged so that their axes are horizontal and parallel to each other and intended for tangential support rod or roll of material that is formed on the rod, placed on the rollers parallel to them with the possibility of lifting with an increase in the diameter of the roll and demagnetized pins with the possibility of rotation in two bearings supports of vertical rods of hydraulic cylinders of a means for compensating the weight of a roll including a system for controlling pressure in piston cavities of hydraulic cylinders and maintaining a given constant pressure in rod cavities of cylinders having a sensitive element in the form of a dynamometric sensor connected with movable supports of a driving roller changing them position when the weight of the coil changes, the pressure control system is made electrically with means of regulation and calibration and has a proportion associated with the sensor tional solenoid bearing vertical support rods are formed as half cylinders open top, and a driven roller arranged on movable supports a drive roller, wherein one of the supports You are a polyene rotatable in a vertical plane parallel to the axis of the bar and the other support is mounted on a carriage,
    having a vertical guide for moving them and being able to interact with a torque sensor.
    In addition, the pressure control system has a central hydraulic control unit associated with the hydraulic cylinder piston chambers, while the piston chambers are connected to a proportional solenoid valve. The control system also contains electronic amplifying and converting elements placed between the sensor and the solenoid of a proportional solenoid valve with means for their adjustment and calibration.
    5 In FIG. 1 shows a device for winding a material, side view; in fig. 2 - the same, front view.
    The winding device includes two rollers 1 and 2 for driving the coil, arranged so that their axes are mutually parallel, and the rollers are spaced apart from each other in a horizontal plane. The roller 1 is driven by an engine 3, the output sprocket of which, by means of a chain 4, drives an asterisk 5, rigidly seated on the shaft of the roller 1, and causes the latter to rotate. Through chain 6, an asterisk 7, rigidly seated on the shaft of the driven roller 2, is driven
    0 in rotation. Both rollers 1 and 2 rotate in the same direction, as indicated by the arrows in FIG. 1, at slightly different rates.
    Between rollers 1 and 2 is placed in
    5 the beginning of the winding process of the rod 8 in a tangential position. Therefore, this rod is rotated by friction rollers 1 and 2,
    The material that comes out of the weaving
    0 of the machine or from another similar machine (not shown), guided around the return rollers 9, 10 and 11, while the last of said return rollers tightly presses it to the periphery of the drive roller 1,
    5 so that it is partially wrapped around the latter, the material is rolled into a roll in accordance with successive rotations around the rod 8.
    As follows from FIG. 2, pins 12 and 13
    The rods 8 are positioned in such a way that they can freely rotate inside the bearings 14 and 15, made at the upper ends of the rods 17 and 16 of the vertically arranged hydraulic cylinders 18 and
    5 19. The pistons 20 and 21 of these cylinders divide the inner chamber of the cylinders into an upper rod cavity 22 (23) and a lower piston cavity 24 (25). Supports 14 and 15 designed to support
    the trunnions of the rod 8 are made in the form of semi-cylinders open at the top to effect the replacement of the rod. The vertical side walls 26 and 27 of the support frame of the winding device serve as a support for the rollers 1 and 2.
    At one of the ends (on the left in Fig. 2), the rollers 1 and 2 are supported while maintaining the possibility of free rotation on the supports 28, which are carried by the wall 26. These supports have the possibility of limited rotation in a vertical plane around the axes of the rollers 1 and 2.
    At their other end (on the right in Fig. 2), the rollers 1 and 2 are supported, while still free to rotate, on supports 29, which are mounted on rails 30 moving vertically along the wall with the possibility of limited rotation in vertical planes.
    The sled 30 in the lower part is located on the cells 31 of the dynamometer with strain gauges with electrical resistance, which is schematically shown in FIG. 2. It has the shape of Z and is located on a fixed element. The function performed by this cell, which is a detector tool that absorbs the load, is to convert voltage changes produced by load changes into an electrical signal at the output. Thus, we have a mechanical-electrical converter.
    The output electrical signal (in millivolts), generated by the cell 31, is directed via line 32 to an electronic amplifier 33, equipped with appropriate adjusting and calibration means, which amplifies the received signal and supplies it as its signal to the output. The corresponding amplified signal is directed to a second electronic converter 34, which converts the signal received from amplifier 33 into electric current (in milliamperes), which is sent along line 35 to solenoid 36 of proportional electric valve 37.
    There is a hydraulic central device 38 for supplying pressurized fluid to hydraulic cylinders 18 and 19, more specifically, through proportional solenoid valve 37 and channel 39 to lower cavities 24 and 25 cylinders and through pressure control system 40 and channel 41 to upper cavities 22 and 23 cylinders .
    The pressure Pc, respectively calibrated by pressure control system 40 inside the upper cavities 22 and 23 of the hydraulic cylinders 18 and 19, is constant, while Px pressure
    inside the lower cavities 24 and 25 of the hydraulic cylinders is controlled by a proportional solenoid valve 37 and is variable.
    The load acting on the cell 31 is mainly due to the weight of both tangential rollers 1 and 2 and the weight of the sled 30, constant weight K of rod 8 and variable load Su on the actual weight of the material when it is wound on the rod. For the system under consideration, the above pressures Pk and Px, constant weight K of rod 8, variable load Su and constant value of load Ck per cell 32, which it is desirable to keep in the process of winding material T on rod 8, the following equality is true:
    Su + Pk + K-Px-Sk 0.
    The value of the desired constant load Sk can be set by adjusting the value of the constant pressure Pk inside the upper cavity of the hydraulic cylinders 18 and 19 by means of a pressure control system and by calibrating the electronic amplifier unit 33 of cell 32 as a function of the following parameters: the type of material to be wound; maximum diameter of the finished roll of material; weight of the finished roll.
    By calibrating the electronic amplifier 33, it is necessary that the weights of both rollers 1 and 2 and sled 30 be compensated for, so that the signal at the output of the electronic unit 33 is solely proportional to the actual weight of the material, which gradually increases during the winding process.
    In order to preset the value of the constant load Ck, which must be maintained during the winding of the material, the following condition is necessary and sufficient: Pk Ck-K; Sk K.
    If a
    Rk Sk - K, from the above equality it follows that
    R Su,
    where Su is the actual weight of the material during its winding, which can vary from about 0 to a maximum value of about 2500 kg.
    Variable pressure Px is an upstream function.
    During the process of winding material around the rod, three steps can be established:
    I. Su Ck - stage of compression;
    II.Su Ck - the stage of balance;
    III.Su Ck - the stage of recovery.
    This means that during the initial winding stage of the material (i.e. the compression step), the rod 8 is pressed against the tangential rollers 1 and 2 to wind the material when the roll of material in the formation process reaches such a diameter that Su C, an equilibrium step takes place, and when the roll out continues further, while the roll diameter continues to increase, the hydraulic cylinders 18 and 19 raise said roll of material.
    Cell 31, which operates at a variable force in the range of 2/10 to 4/10 mm, perceives any increase in load (A Su) and transmits a signal, expressed in millivolts, by increasing the proportional increase in Px — the pressure inside the lower cavity of both hydraulic cylinders 18 and 19, controlled by a proportional solenoid valve 37. In this case, the load acting on the cell decreases by the same amount, and the cell returns to its previous operating state, i.e. to the position determined by the calibration of the electronic unit 33.
    Thus, the load cell 31 is permanently interconnected with the proportional solenoid valve 37 and, thus, the load Cc is kept constant.
    The location of the load cell 31 is shown in FIG. 2, where the load on said cell is applied to a point at the end of the roller opposite to the cell, and allows only half of the load to be perceived. Thus, a smaller cell can be chosen, therefore cheaper.
    The numerical example best explains the three stages of work during the material winding process.
    Suppose that the load is constant Ck 400 kg, and the rod weight is 8 K 40 kg, then we assume that the pressure Pk inside the upper chamber of hydraulic cylinders 18 and 19, which must be higher than Ck - K, i.e. Pk 460 kg.
    权利要求:
    Claims (3)
    [1]
    I.Stage of compression:
    a) the actual weight of the material Su O, Px Su + Pk + K - Ck - 0 + 460 - 40 - 400
     100 kg;
    b) the actual weight of the material is 200 kg; Px 200+ 460+ 40-400 300 kg.
    II. Stage of equilibrium:
    The actual weight of the material Su is equal to the constant load Sk, Su Sk 400 kg;
    Pk Pk + K 460 + 40 500 kg. Iii. Stage up;
    a) the actual weight of the material is 1000 kg,
    РХ 1000 + 460 + 40-400 1100 kg;
    b) the actual weight of the material is 2500 kg;
    Px 2500 + 460 + 40 - 400 2600 kg. So thanks to the device
    According to the invention, the load acting from the side of the formed material roll on the tangential rollers for winding the material can be kept constant, equal to the predetermined value during the entire winding process. Thus, the frictional forces between the coiled material of the coil and said rollers can also be kept constant,
    This ensures good contact of the layers of material inside the coil even in the case when a case with thin material occurs. Any harmful effects on the tangential winding system of the material are prevented.
    In this case, it is possible to obtain rolls of material with a diameter of up to 1800-2000 mm, and the geometry of the ends of the roll of material is within very narrow tolerances.
    Formula 1 and 1. A device for tangentially winding material into a roll, containing two parallel horizontal rollers for
    5 of the roll drive, one of which is the master and the other the follower, a roll bar placed on the rollers parallel to it with the possibility of lifting with an increase in the diameter of the roll and placed
    0 axles rotatably in the two bearing supports of the vertical rods of the hydraulic cylinders of a means of compensating the weight of the roll including the pressure control system in the piston cavities of the hydraulic cylinders and maintaining a predetermined constant pressure in the rod cavities of the cylinders having a sensitive element in the form of a torque sensor associated with moving bearings of the driving roller, which change their position when the weight of the coil changes, characterized in that, in order to improve the quality of the winding, the control system ION electric formed with means
    5 is adjusted and calibrated and has a proportional solenoid valve associated with the sensor, the bearing supports of the vertical rods are made in the form of semi-cylinders open at the top, and the driven roller is placed on the moving supports of the master
    roller, one of the supports is made rotatable in a vertical plane parallel to the axis of the rod, and the other support is mounted on rails having a vertical guide for their displacement and the possibility of interaction with a torque sensor.
    [2]
    2. The device pop, 1, differs with the fact that the pressure control system has a central hydraulic unit
    adjustment associated with the rod chambers of the hydraulic cylinders, wherein the piston chambers are associated with a proportional solenoid valve.
    [3]
    3. Device pop. 1, characterized in that the control system comprises amplifying and converting electronic elements placed between the sensor and the solenoid of the proportional solenoid valve with means for adjusting and calibrating them.
    FIG. one
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    SU1509324A1|1989-09-23|Device for coiling film
    同族专利:
    公开号 | 公开日
    US4967804A|1990-11-06|
    IT8819561D0|1988-02-26|
    EP0330257A1|1989-08-30|
    IT1216462B|1990-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2475440C1|2011-08-12|2013-02-20|Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Владивостокский государственный университет экономики и сервиса |Device for reeling long-sized plied articles of deformable materials|
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    US2519424A|1947-11-17|1950-08-22|Edward F Bahan|Pressure applying means for cloth rolls in looms|
    US3236471A|1963-12-02|1966-02-22|Beloit Corp|Drum winder for paper and the like|
    US3306547A|1965-04-02|1967-02-28|Keelavite Hydraulics Ltd|Winding apparatus|
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    GB1565650A|1975-10-16|1980-04-23|Masson Scott Thrissell Eng Ltd|Winding mechanism for webs|
    DE2615252A1|1976-04-08|1977-10-27|Krueckels Maschf Zell J|Strip material coiling machine - has core bearing housings coupled to pneumatic ram and movable independently of each other under gravity|
    JPS5310707A|1976-06-29|1978-01-31|Masson Scott Thrissell Eng Ltd|Apparatus with rider roll|
    GB2087362A|1980-11-14|1982-05-26|Masson Scott Thrissell Eng Ltd|Winding web at constant winding density|
    US4811915A|1987-11-12|1989-03-14|The Black Clawson Company|Rider roll relieving system|US5386950A|1992-06-08|1995-02-07|Abt; Richard|Apparatus and method for preparing individual wound rolls from a slitted web of material|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    IT1956188A|IT1216462B|1988-02-26|1988-02-26|TANGENTIAL TYPE FABRIC COILER WITH LOAD CONTROL DEVICE.|
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