TWI247658B - Roller device for film forming - Google Patents

Abstract

To produce a sheet film which does not need a Schmidt coupling etc., is simple in structure, suppresses roll rotating fluctuation, and has high precision surface properties. A driving device 27 is set separately from a bearing case 25 and connected to one end of a cooling roll 21 by a coupling 26. Separately from a linear guide rail 23 guiding the movement in the roll diameter direction of the bearing case 25, a linear guide rail 31 guiding the movement in the roll diameter direction of the driving device 27 is set up, so that the driving device 27 can move in the roll diameter direction with the bearing case 25.

Description

1247658 (1) Field of the Invention [Technical Field] The present invention relates to a roll device for forming a thin-sized sheet or film (hereinafter simply referred to as "film"), and more particularly to a film which can be formed in a pressure-containing film A roll forming device for film forming used in the technical field of the cooling roll device. [Prior Art] A roll forming device for film forming, for example, a cooling roll device for forming a film by extrusion, is a relatively wide position in which a gap between adjacent molding rolls is set at a gap (hereinafter referred to as "roll gap") ( Hereinafter, the "opening position" is used, and after the resin passes between the rolls, at least one of the rolls is opened and closed with respect to the other (hereinafter referred to as "opening and closing of the rolls"), thereby resetting the relative position where the roll gap is narrow (hereinafter It is called "closed position", and the film is formed by rotating the roll around its axis (hereinafter referred to as "rotation of the roll"). The opening and closing of the rolls and the rotation of the rolls require driving in different directions of action, and it is preferable to take this into consideration. The opening and closing of the rolls includes, for example, a rotation mode in which the rolls are wound around the appropriate fulcrum, and is opened and closed like a scissors; and a parallel mode in which the rolls are opened or closed in parallel or away from each other, and the latter has an advantage of less space limitation. It is preferable that the parallel bearing method is such that the bearing supporting the roller at both ends thereof is in a direction of a right angle with the axial center of the roll, in the direction of the right angle of the bearing - 4 - 1247658 (2) (hereinafter referred to as "the parallel of the bearing" )get on. Therefore, the film forming apparatus is provided with the driving portion that advances the bearing, and the following problems occur. Problem point (A): The stop position of the bearing must be adjusted to maintain the parallelism of the rolling light. (A 1 ) That is, it is necessary to give the milk to achieve the parallelism of the required molding precision of the film. This is because the driving force of the hydraulic pressure or the air cylinder or the electric micro-rotation screw is connected to each bearing housing in an actionable manner. Therefore, it is necessary to adjust the control time between these driving elements. Even if it is not forced to stop due to mechanical impact, the positional alignment between the bearings can be performed, so that the required parallelism 〇(A2) can be imparted to the rolls. In addition, the molding precision of the film required in the future will be further improved. Even in the case of the subtle influence between the stop positions of the bearings that are being advanced, it is preferable to adjust the control time to perform the positional alignment of the bearings. Further, since the roll forming device for film forming includes the rotation driving portion for rotating the roll, the following problems occur. Problem point (B): The torque of the rotary drive unit must be smoothly transmitted to the open and closed rolls. Since the rotary drive unit usually includes an electric motor and a speed reducer connected to the motor, it is necessary to transmit the torque of the output shaft of the reducer to the torque transmission element of the opening and closing roller without using the v-lever. At 31 o'clock, as long as the rotary drive unit is set in each milk light, and the frame of the horse 1247658 (3) and the reducer is fixedly fixed to the holding frame for holding the one side bearing of the roll, and then the roll and the other The side bearings are mounted together in a common movable frame and kept parallel, and the manner in which all of them are integrated into one another can directly connect the output shaft of the reducer to the opening and closing rolls, and can smoothly transmit the torque without using the 'leverage action'. The positional alignment of the bearing can be surely performed, and the aforementioned problem (A) including the future problem (A2) can be solved, but the following problems occur. Problem point (C): Since the combination of the rotary drive unit and the bearing is fixed, (c 1 ) the vibration of the motor and the speed reducer is directly transmitted to the bearing, which is not good for film formation. (C2) Moreover, each time the milk roll is replaced, it is necessary to separate and recombine the holding frame of the frame of the motor and the reducer and the re-adjustment of the parallelism, which makes the operation time consuming. In this regard, the conventional light-rolling device for film forming, which is exemplified in the following non-patent document, fixes the motor and the speed reducer of the rotary drive unit to the bottom frame thereof, and forms the worm wheel-driven complex shaft shape, and The output shaft and the opening and closing rolling are connected by an eccentric torque transmitting element. The reducer is driven by a single motor. [Non-Patent Document 1] Toshiba Machine Co., Ltd., and the vertical extension machine 检索 [Search on May 22, 2005] Internet, URL. h 11 p . / / 'vwwt 〇s ;ba - machine c 〇 j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j j The rolling of the table 1 is provided with a bottom frame Fr] which is fixed to the base of the factory base and has a substantially c-shape; and the left and right shafts fixed to the first frame F r 1 are 1] , ] 1 3 ; fixed cooling rolls 1 ] with the shafts at both ends mounted on these bearings 1 1 2, Π 3; movable cooling rolls 2 1 which can be opened and closed toward the front and rear with respect to the rolls 1 1 ; and the rolls 2 The left and right bearings 124, 25 at both ends of the first and second sides have a parallel drive portion for advancing (D 1, D 2 ) of the bearing housings of the bearings 124 and 125 with respect to the rear portion of the first bottom frame F r 1 . D r 1 ; and a rotary drive unit Dr2 that rotates each of the rolling speeds 1 1 and 2 1 . The rotation driving unit D r 2 includes a bottom frame F r 2 that is fixed to the ground base portion and that is formed integrally with the front portion of the first bottom frame F1·1 and has a substantially Tau shape, and is fixed at the bottom. a single electric motor 1 1 7 of frame F r 2; a worm-wheel type multi-axis reducer fixed to the bottom frame F r 2 and connected to the motor 1 17 by means of a belt and a pulley to prevent transmission of vibration Rd; the torque of the output shaft 1 18 of the front side of the reducer Rd is transmitted to the directly coupled joint 1 1 4 of the fixed roll 1 1 ; and the torque of the output shaft 1 3 0 of the rear side of the reducer R d is transmitted to The torque transmitting element 126 of the movable roller 2 1 . The configuration of the torque transmission element 1 2 6 is shown in plan view in Fig. 2, the torque transmission element] 2 6 is the front and rear links] 2 6 e, 1 2 6 f group (three in each group), and the bolts are used. Directly coupled to the input disc of the flange 1 of the output shaft 1 3 0 of the reducer Rd -7- 1247658 (5) of Fig. 1 (the front side of Fig. 2), directly coupled to the movable type by bolts The output disk 〖2 6 b (the rear side of Fig. 2) of the flange portion of the input shaft of the roll 2 1 and the intermediate disk 1 2 6 c positioned therebetween are connected, and these links are used] e, 1 2 6 f crankshaft activity to transmit torque eccentric constant velocity joint, called Schmidt coupling, even if the rotating shaft is in the radial direction between the input and exit discs 1 2 6 a, 1 2 6 b The offset can also absorb this offset to a maximum of about 100 mm. Thereby, the deviation of the rotational axis caused by the opening and closing of the movable roller 2 1 with respect to the output shaft 130 of the reducer Rd can be absorbed, even if the frame of the reducer Rd is not directly coupled to the bearing 1 2 4 The bearing housing of the 1 2 5 roller can also be opened and closed by using the bearings 24 and 125, and the conventional problems (A 1 ), (B) and (C) can be solved. Further, it can be set even in a place where the left and right widths of the bottom frames Fr1 and Fr2 are limited. Further, in the case of producing a film such as optical which requires high precision and smoothness on the surface of the product, the fluctuation of the rotation of the roll 2 1 can be made smaller than that of other conventional devices. Further, the ratio of the output shafts of the speed reducer R d to the first and second rolls can be made larger than the distance between the front and rear rolls 1 1 and 2 1 at the closed position. SUMMARY OF THE INVENTION [Problems to be Solved by the Invention] However, the roll forming apparatus for film forming of the drawings having such advantages has a new problem as the quality of the film is increased. -8 - 1247658 (6) Problem point (ϋ): Since the motor and reducer of the rotary drive unit are fixed to the bottom frame, (D 1 ) as the roll is opened and closed, the rotation axis of the roll will be removed from the reducer. The axis of rotation of the output shaft is biased, and the torque transmitting element that allows this bias is required. (D 2 ) Since this torque transmission element uses a Schmidt coupling, there is a possibility that a slight rotation change due to the movement of the link of the joint causes a horizontal line to be generated in the film. (D 3 ) Moreover, if the operation accuracy of the Schmidt coupling that is itself an eccentric joint is higher than in the past, the subtle entry and exit of the stop position of the parallel bearing and the component of the coupling that absorbs the access are included. The relationship between leverage and the aforementioned future problem (A2) may become a practical problem. (D4) Moreover, due to the amount of bias that the Schmidt coupling allows, the opening and closing position of the milk is limited. The number of movable rolls that can be placed on the outer side of the pair of open and closed rolls (for example, one on each side) is also limited. This is because the bearing parallel distance increases as the number of rolls is increased. Therefore, the amount of bias between the roll and the output shaft of the corresponding reducer becomes large. Problem (E): Since the worm-wheel type multi-axis reducer is driven by a belt with a single motor, (Ε 1 ) is driven at the same time The movement of the worm wheel of the plurality of output shafts causes a slight rotation change, which may cause a horizontal line on the film. (Εζ) Moreover, since the small rotation of the belt drive portion of the pulley is changed, 1247658 (7) It is possible that a horizontal line is generated in the film. (E 3 ) Further, since the dust from the belt driving portion may impair the surface precision of the film.

The present invention is to eliminate the above-mentioned conventional problems (A]), (B), (C) and eliminate the above-mentioned new problem points (D) and (E), while solving the problem that has been existing before (A 2 ) and the founder. Accordingly, it is an object of the present invention to provide a film-sand type peripheral roll device which can be opened and closed by a parallel of bearings without accompanying the above problems (A) to (e). It is preferable that the object of the present invention is to provide a film which is simple in structure, has less variation in rotation of a roll, and has high surface properties (smoothness), and preferably provides a film forming process which is easy to carry out in a conservative operation including roll replacement. Roller device. [Means for Solving the Problem] In order to achieve the above object, a roll forming device for film forming according to the present invention includes: a roll for forming a film; a bearing for supporting the light rolling; and a drive for opening and closing the roll and the roll And a rotary drive unit that rotates the roll, further characterized in that: -10 - 1247658 (8) movable connection means for coupling the rotation drive unit to the bearing in a movable state; and the rotation drive unit The paralleling means for advancing the bearing; and the flexible torque transmitting element for transmitting the torque of the rotary driving portion to the roller. According to the present invention, the rotary drive unit that is coupled to the bearing in a movable state is advanced with the bearing. In other words, first, there is a roll that is supported by the bearing and further opened and closed by the bearing; and a rotary drive unit that gently rotates the roll, so that the rotary drive unit is coupled to the bearing. In the state of being movable, it goes hand in hand with this bearing. Further, there is a flexible torque transmitting element for transmitting the torque of the rotary drive unit to the roll. In other words, in the roll forming apparatus for film forming having the above configuration, (F), since the rotary drive unit is coupled to the movable state, (F]) the above-described problem caused by the combination of the rotary drive unit and the roll being fixed can be eliminated. The point (D); (F2) also eliminates the aforementioned problem (D) caused by fixing the rotary driving portion to the bottom frame. (G) Moreover, since the rotary drive unit and the bearing are advanced, (G 1 ) does not require a single motor to drive the worm-wheel type multi-axis reducer, and the aforementioned problems caused by the configuration can be eliminated ( E); (G 2 ) At this time, since the bearing is opened and closed by itself and then the rolling light -11 > 1247658 (9), the aforementioned conventional problem of the parallelism between the rolls can be eliminated (A) ]), since the core of the opening and closing roller protrudes from the design reference axis, the g_ movable connection state can be within the vibration range of the permissible rotational driving portion by adjusting the parallel control time between the rotary driving portion and the bearing. The core of the stomach rotating drive unit protrudes from the state of opening and closing the roll. (Η) Further, since there is a flexible torque transmitting element for transmitting the force of the above-described rotation driving unit to the above-described roll, it is:

(Η 1) Rotating the opening and closing rolls via the torque transmission element. 'In the three-dimensional flexible range of the torque transmission element, the displacement of the core position between the rotary drive unit and the opening and closing rolls and the rotation axis can be absorbed. Since the difference of the parallel g is such that the vibration range of the rotary driving portion is within the flexible range of the torque transmitting element, the occurrence of the "lever lever action" can be prevented, so that the aforementioned problem point (B) can be eliminated;

C Η 2 ) Even if a slight offset occurs between the parallel stop positions of the bearings, and the core exposes the opening and closing rolls due to the offset, the flexible torque transmitting element can absorb the error and thus eliminate The aforementioned problem (A 2 ). Therefore, according to the present invention, it is possible to provide a roll forming apparatus for film forming which can be opened and closed by rolling in a bearing without accompanying the above problems (A) to (E). Preferably, the torque transmitting element has a flexible coupling that is coaxially connectable. Preferably, the parallel means includes: a first guide for guiding the bearing; a second guide for guiding the rotary drive; and a means for keeping the first and second 2 - 12 - 1247658 (10) guides parallel . Preferably, the movable connecting means includes: a first frame member that holds the bearing; a second frame member that supports the rotation driving portion; and a means for connecting the first and second frame members to a separable state, and preferably has A means for sandwiching the aforementioned rotation driving portion to the fixing member. Preferably, the rotation driving unit has an electric motor arranged in a longitudinal direction; and a reduction gear having a spiral bevel gear coupled to the electric motor. The above and other objects, features, aspects and advantages of the present invention will become < form. The same elements are denoted by the same reference symbols. (First embodiment) First, a first embodiment of the present invention will be described with reference to Figs. 3 to 9 (in particular, Figs. 3 and 4). Fig. 3 is a plan view of a roll forming roll device RL1 according to the first embodiment, Fig. 4 is a cross-sectional view taken along line IV-IV of Fig. 3, Fig. 6 is a view taken along line VI of Fig. 4, and Fig. 7 is a view 4 is a V11 view, Fig. 8 is a sectional view taken along line VIII-VIII of Fig. 7, and Fig. 9 is a sectional view taken along line IX-IX of Fig. 7. This roll device RL1 (Fig. 3 '4 [Refer to Figures 6 to 9]) package-13- 1247658 (11) with bolts for fixing) and center frame 6 to 9]) Box 4 0c (4th Roller 1 (3rd middle frame 4 G e 2 1 (3rd, 4th, 1st and 1st position, dare and the fixed roll (or base roll) when forming the resin cooling film shown in the near picture That is, the first and second coolings of the first and second cooling are extended to the left and right, and the state of rotation is maintained, and the axis of the radial radial direction is maintained by the first cooling of the reference axis, via the vibration-proof layer I 3 (third Figure [ is placed in the foundation frame of the factory, and has a frame 40 of the left frame 40a (the 4th 40b (Fig. 4)) (Fig. 3, 4 [reference, and has: horizontally disposed in the middle of the bottom frame 40 Fig.) The first cooling pattern above the rear portion (upper side of Fig. 3) [see Figs. 6 to 8]; and the second cooling roller disposed horizontally above the upper front portion (lower side of Fig. 3) , 7, and 9]). 2 The cooling and rolling speeds 1 1 and 2 1 are set to be separated from each other to open the molten resin, and then re-set in the extremely closed position to rotate around the axis. forming, An optical resin film is produced. When the roll is opened and closed, the first cooling roll 1 1 is a fixed roll, and the second cooling roll 2 1 is a movable roll.] The roll 1 1 is made from the roll main body. 1 1 a (Fig. 3) Shaft 1 1 b (Fig. 3), 1 1 c (Fig. 3 [Refer to the first bearing 1 2, 1 3 by means of the left and right, respectively, which can be supported by these bearings 1 2, 1 3, the center of the rotation axis is at the three-dimensional position of the core. The bearing I 2 to the left of the roll 1 1 (Fig. 3) is a frame member that makes the bearing body (for example, the support portion with the bolt surrounded by the race) The bearing housing 1 2 b (Fig. 3) is placed on the rear of the left frame 4 G a of the bottom frame. The right bearing is referred to in Figures 7 and 8]) to hold the push-pull shaft - 14 - 1247658 (12) A bearing housing of a frame member (for example, a shaft member that receives a radial load and a shaft portion that is also subjected to a push-pull load by a roll and a bolt surrounded by a race) is provided in the center of the bottom frame via a vibration-proof layer. The rear upper surface c of the frame 40b, and the second cooling roll 21 are also the shaft portions 2 extending from the roll main body 2 1 a (the third and fourth views) to the left and right. 1 b (Figs. 3 and 4) and 2 1 c (Figs. 3 and 4 [see Figs. 7 and 9]), respectively, by the left and right second bearings 24, 25 respectively supporting a rotatable state, and by The center of these bearings 2 4, 25 causes the center of rotation to be at the determined three-dimensional position. The bearing 24 on the left side of the second cooling roll 2 1 (Figs. 3 and 4) is used to hold the radial bearing body 2 The bearing housing 2 4 b (Figs. 3 and 4) of the frame member of 4 a (Fig. 4) is provided on the linear guide 22 provided above the front portion of the left frame 40a (Fig. 4) of the bottom frame via the vibration isolating layer. The guided carrier frame 2 4 c (Fig. 4). The right bearing 2 5 (Figs. 3 and 4 [see Figs. 7 and 9]) is a bearing case 2 5 b (the third, which is a frame member that holds the push-pull type bearing main body 2 5 a (Fig. 4). 4)), the vibration-damping layer is provided on the carrier frame 2 5 c (Fig. 4) guided by the linear guides 2 3 provided on the upper portion of the front frame central frame 40b (Fig. 4) [refer to Fig. 9] ). Further, the second cooling roll 2 1 is as shown in Fig. 4 (the same applies to the first cooling roll 1 1), and the right shaft portion 2 5 c is supported by the bearing main body 2 5 a to support the large diameter base portion 2 1 c 1 is coupled to the intermediate portion 2 1 c 2 between the tapered front end portions, and a bearing stopper 2 c 3 is provided at the right end of the intermediate portion 2 1 c 2 . The left shaft portion 2 1 b is supported by the bearing main body 2 4 a with its large diameter base portion 2 ] b ] and the refrigerant circulation left extension portion 2 ] d (the first cooling roller (13) 1247658 is 1 The intermediate portion 2 1 b2 between 1 d [refer to Fig. 3) is provided, and a bearing stopper 2 1 b3 is provided at the left end of the intermediate portion 2 1 b2. The left extension 2 1 d is connected to the refrigerant circulation pipe joint 2 1 e having the refrigerant supply port 2 1 e 1 and the return port 2 1 e 2 by a flange. The roll device R1 has the left and right bearings 24 and 25 of the second cooling roll 21 facing forward and backward (arrows D1 and D2 in Fig. 3), whereby the second cooling roll 2 1 is opposed to the first cooling roll 1 ] Parallel drive mechanism Drl (Fig. 3) that opens and closes forward and backward. The parallel drive mechanism Dr 1 is provided with a spherical circulation type linear guide member 24d (Fig. 4) which is pushed and pulled by the hydraulic pressure or the air cylinder 3 6 (Fig. 3) on the linear guide 2 2 (Fig. 3 and 4). The bearing frame 24c (Fig. 4), the first parallel drive unit D r 1 1 (Fig. 3) for advancing and retracting the left bearing 24 of the second cooling roll 2 1; using hydraulic pressure or air cylinder 3 7 ( Fig. 3 [Refer to Fig. 7]) Push-pull linear guide 23 (Fig. 3, 4 [see Figs. 7 and 9]) with a spherical circulation type linear guide member 2 5 d (Fig. 4) [Refer to In the bearing frame 2 5 c (Fig. 4 [refer to Fig. 9]) of Fig. 7), the second parallel drive unit D r 1 2 that advances and retracts the right bearing 2 of the second cooling roll 2 1 (third) Figure)·· and the operation of the pressure cylinders 3 6 and 3 7 that control the parallel drive units D r 1 I , C) ι·1 2 and the time thereof, so that the heart of the second roll 2 1 can be closed A control unit (not shown) of a reference axis (that is, parallel to the first rolling|column 1). In addition, the 'roller device RL' is in the right frame 4〇d of the bottom frame 4〇 (Fig. 4 [the reference numeral 7] has a rotary drive mechanism Dr2 (Fig. 3 [refer to Fig. 7]), the rotary drive mechanism D, .2 has the first rotary drive unit Dr2 as the supply source of the torque for rotating the n-16 and 1247658 (14). (Fig. 3 [see Figures 6, 7, and 8]) a second rotation driving unit D r2 2 as a supply source of torque for rotating the second cooling roll 2 1 (Figs. 3 and 4 (see Figs. 6, 7, and 9); and for controlling the first and The operation of the second rotation drive units Dr2 1 and Dr22 and the control unit (not shown) thereof may be included in the control unit of the parallel drive mechanism D r ] and the control unit of the rotary drive unit D r 2 . A system control unit (not shown) that controls the entire roll device r L ]. Each of the rotary drive S force portions D r 2 1 is in this embodiment as a first electric motor having a longitudinal fit tt (i.e., the rotational axis is substantially vertical). Motor 1 7 (Fig. 3 [refer to Figs. 6 to 8]), and a spiral bevel gear 1st reducer for fixing the frame to the motor 1 7] (Fig. 3 [refer to Figs. 6 to 8] The first drive unit 丨5 (Fig. 3 [refer to Figs. 6 to 8]), but it is not limited thereto. For example, a canopy and a spur gear type reducer which are arranged laterally may be used depending on the installation space. The first drive device 15 is As shown in Figures 6 and 8, the frame is fixed to the bottom frame by a bolt frame 15 5 a which is height-adjustable at the same time. The table 1 is as shown in Fig. 8 The helical spur gears 18 8 , 1 8 b which are engaged with each other, and the spiral bevel gears 18 c, 1 ' which are engaged with each other and the helical spur gear 8a are coupled to the output shaft 17 a of the electric motor 17 . The rotation of 7 is based on the output shaft]7 a — helical spur gear spur gear 18b_ (spiral bevel gear 8b coaxial) beveled gear] 8 c — spiral bevel gear 8 d — reducer 8 output shaft (= - 17 - I247658 (15) ~ The torque output shaft of the drive 1] 5 is transmitted and the speed is reduced. The torque output shaft of the drive unit 1 5 is 6 (Fig. 3 [Refer to 6 to 8] Fig.]) is a flexible joint 4 (Fig. J [Fig. 5, 7, 8]) as a flexible torque transmission. In the present embodiment, the second electric drive unit Dr22 is also a second electric motor 29 having a longitudinal direction (Figs. 3 and 4 (see Figs. 6, 7, and 9), and The second drive unit 27 of the spiral bevel gear type second reduction gear 30 (the third and fourth figures [see FIGS. 6, 7, and 9)) that is fixedly coupled to the motor 29 (Fig. 3, 4) The sixth, seventh, and ninth aspects are configured, but are not limited thereto. For example, a motor and a spur gear type reducer that are disposed in the lateral direction may be used depending on the installation space. The I 2 drive ^3 is as shown in Figures 4, 6, and 9 (refer to the 7K of the 3rd and 7th drawings, the frame is bolted to the floating type (also movable) type which can be height-adjusted at the same time. Frame (hereinafter referred to as "floating frame") The floating frame 3 2 is a spherical circulation type linear guide member 32a (4th, 6th, 7th [refer to the ninth]) which is provided before the bottom surface of the base portion, and is framed by the bottom frame. 4 0d (Fig. 4) The upper linear guide 3丨 is guided forward and backward, and the front end of the left extending portion 32b (Figs. 4, 7, and 9) is detachably pivotally mounted to the bearing by the pin 32c (Fig. 9). The second reduction gear 30 has the helical spur gears 30a and 30b that are engaged with each other, and the spiral bevel gears 3 that are engaged with each other, as shown in Fig. 9, and (9), and the spiral is made. The spur gear 30a is coupled to the output shaft of the electric motor 29. The rotation of the ai swaying motor 29 is based on the output shaft 29a - the helical spur gear I24 658 (16) h, the helical spur gear 30b - (coaxial with the helical spur gear 3 〇 b Spiral bevel still n / ' ^ spiral bevel gear 30d - the output shaft of the reducer 3 〇 (2 - 2 drive device 2 7 torque output shaft 2 8 ) Decrease and slow down. The torque output shaft 2 of the 11th moving device 2 7 (3rd, 4th [Shen furnace, 6, 7, 9]) is a flexible 1 ceremony that is a flexible torque transmission element. Female 2 6 (Figs. 3 and 4 [see Figures 5 to 7, 9]: the same structure as the % coupler), connected to the right shaft portion 2 of the second cooling roll 2] which is itself an opening and closing roll] Here, the configuration of the flexible coupler 2 6 ( _ closed roll side) will be described mainly with reference to Fig. 5, and the configuration of the flexible coupler 14 (reference roll side) will be referred to by the brackets (). Figure 5 is a front view of the operating state of the flexible coupling 2 6 (1 4 ). The flexible coupling 2 6 (] 4 ) is as shown in Figure 5, on the light side (ie the torque output side) The hub member 26a [refer to Figs. 3, 4, 7, and 9] (1 4 a [refer to Figs. 3, 7, and 8]), and the hub member 2 6 b of the driving side (i.e., the torque input side) [ Referring to the 3rd, 4th, 7th, and 9th (1 4 b [refer to the 3rd, 7th, 8th]), the intermediate spacer 26c is interposed [refer to the 3rd, 4th, 7th, and 9th) (〖4c [refer to the 3rd, 7th , 8]), between the spacer 2 6 c ( 1 4 c ) and the roll side hub member 2 6 a (] 4 a ) The layered flexible element on the output side is 6 6 d [Refer to Figures 7 and 9] (14d [Refer to Figures 7, 8]) and the eccentric bolts in the table 2 6 f ( 1 4 f ) , 2 6 g ( ] 4 g) and directly joined, and between the spacer 2 6 c ( ] 4 c ) and the driving side hub member 2 6 b ( ] 4 b ), by the driving side of the layered flexible element 2 6 e [refer to 7, 9]] (1 4 e. [Refer to Figures 7, 8]) and the eccentric bolts in the table 2 6 h ( ] 4 h ) , 2 6 i ( M i ) and ^ 1S- 1247658 (17) Direct Combined double flexure coupling. Here, referring to the fourth, fifth, seventh, and ninth drawings (in particular, the fifth and ninth views), the connection structure of the opening and closing roller side coupler 26 will be specifically described. The shaft portion 2] c of the second cooling roll 2] is fixed to the main body portion 2 6 a 1 (Fig. 5) of the rolling-side boss member 2 6 a by a pin (see Figs. 4 and S), and is utilized. The bolt 2 6 f directly couples the radially opposite portion of the right end flange portion 2 6 a 2 (Fig. 5) of the boss member 26 6 a (for example, the upper and lower portions from the front side thereof) The front side of the output side is a polygonal shape (for example, an S-shaped shape) of the output side of the flexible element 2 6 d and the diametrically opposed top. Then, the other opposing tops of the flexible elements 26 d (for example, the top left and right sides of the front side) are directly joined to the output side disc or flange portion of the spacer 62c by the bolts 2 6 g. Corresponding part of c 1 (figure 5). Similarly, the output shaft 28 of the second drive unit 27 is fixed to the main body portion 26b1 (Fig. 5) of the drive side boss member 26b by a pin (see Figs. 4 and 9), and the bolt 26i is used to fix the output shaft 28. The left side of the hub member 26b and the radially opposite portion of the flange 邰2 6 b 2 (Fig. 5) (for example, the front and rear sides of the Snapdragon appear to be left and right) are directly coupled to the front side. The input side of the polygonal shape (e.g., quadrilateral) is the diametrically opposed top of the element 2 6 e. Then, the top portion of the flexible element 26e; the top opposite to the front side (for example, the upper portion of the upper and lower sides) is directly coupled to the input side disk or flange portion 26 c2 of the spacer 26c by the bolt 26h (the first) The corresponding part of Figure 5). Thereby, the pair of left and right flange portions 2 6 a 2 / 2 6 c 1 , 26b2 / 2 6c2 can be opened to be elastically deformed according to the 1247658 (18) of the flexible elements 26d, 26e disposed therebetween. The hit (the deviation between the 5th β is for RL) is closed at the bottom, that is, the fixed box 12b, and can be folded in the cooling type up to 17 and the straight box 2 4b of the nameable openable portion can be In addition, the line guides, the static pressure cooling type can flex the angle of 2 6 d ], 2 6 e 1 (Fig. 5) of the 27, and the spacers 2 6 c at an inclination angle corresponding to the opening angle. The main body portion 2 6 c 3 3 ) is oscillated, so that the input and output hub members 2 6 a and 2 6 b can be absorbed. The above configuration is further explained, and the cooling roll having a fixed arrangement on the frame 4 of the film forming light-pressing device 1 1 ; and a cooling roll 2 1 which is movable radially toward the roll. The configured cooling milk $1 is a central portion of the bearing 1 3b fixed to the frame 40, so that both ends are supported in a freely rotatable state, and the center axis around itself (around the horizontal axis) rotates. The roll]1 is a direct-coupled coupler 14 for connecting one end thereof by coaxial connection, and is actually driven to be coupled to the drive-mounted output shaft 16 on the same axis. The drive unit 15 includes an electric motor speeder 18 and is fixed to the frame 40. The closed cooling roll 2 1 is a central portion of the bearing 2 5 b which is guided by the linear lead guides 22, 23 provided on the frame 40 and is movable in the radial direction of the roll, and supports both ends in a state of being freely rotatable. Rotate around the center axis (around the horizontal axis). A straight + ® f Μ recirculating ball type linear guide that guides the radial movement of the rolls of the bearing housings 2 4 b and 2 5 b, and can be constituted by various linear guide members such as a # β 'sliding type by a needle bearing vehicle. The vehicle L 2 ] is a direct junction of one end by coaxial coupling: the type coupling 2 6 is actually driven by being coupled to the drive output shaft 2 S on the same axis. Drive unit 2 7 contains electric horse

-21 - 1247658 (19) Up to 2 9 and the reducer 3 〇, and guided by the linear guide 3] provided on the frame 40, can move radially toward the roll. The guide for guiding the radial movement of the rolls of the drive unit 27 is not limited to the recirculating ball type linear guide, but may be constituted by various linear guide members such as a needle bearing type, a hydrostatic bearing type, and a slide type. In this regard, the guide guiding the radial movement of the roller of the drive shaft 27 can be more inclined with respect to the linearity than the linear guide for guiding the radial movement of the roller of the bearing housing 2 4 b, 2 5 b, as long as the driving device is allowed The roller of 2 7 can be moved radially. The drive unit 27 is coupled to the bearing housing 25b by the insect floating frame 32. Cylinders 36, 37 that move the bearing housings 2 4 b, 2 51 in the radial direction of the rolls are connected to the bearing housings 2 4 b and 2 5 b. The driving devices 15 and 27 including the speed reducers 18, 30 are means for selecting the radial width of the rolls to be smaller than the diameter of the rolls. The driving device 15 of the cooling roll 1 1 fixedly arranged is a fixed speed reducer (gear box) 18 fixed to the frame 40 by the frame 15 5 a. The electric motor 1 7 is mounted on the speed reducer 18 in a vertical arrangement orthogonal to the horizontal rotation axis of the cooling roll 1 1 . The flexible coupling 14 is actually an output shaft having a pin connected to the speed reducer 18 by a pin (refer to FIG. 8), that is, an input side of the torque output shaft 16 of the first driving device 15 The hub member 1 4 b (see FIGS. 3, 7, and 8), the intermediate spacer 1 4 c, and the hub member 4 a connected to the shaft end 1 1 c of the cooling rolling light 1] by a pin The direct coupling type is skided, and the hub member 4a and the middle end portion of the intermediate spacer 丨4c are joined by the laminated flexible element 4d, so that the intermediate spacer]4.c is another -22 - 1247658 (20) The end portion and the hub member 14b are connected by a layered flexible element 4e. The laminated flexible elements 14 4 and 14 4 are laminated with a thin plate of stainless steel or the like, and are fixed to the boss member 4a or 4b and the intermediate spacer 14c by bolts at different positions. The flexible coupling 14 of the above configuration transmits torque on the same axis via the laminated flexible elements 14 d, 1 4 e, and the tolerance of the offset is below the working mm, which can actually be in the range of 2 to 2 mm. Very little degree of offset is allowed in use. Similarly, the squeezable coupler 26 is also provided with a hub member 26b, an intermediate spacer 26c, which is connected to the output shaft 28 of the reducer 30 by a pin, on the same axis. And a direct coupling type of the hub member 296a connected by the pin to the end of the shaft 2 1 c. of the cooled chiller 2, and the hub member 296a and the intermediate spacer 262c One end portion is connected by the laminated flexible element 26 d, and the other end portion of the intermediate spacer 26 c is coupled to the boss member 26 b by the laminated flexible element 2 6 e. The laminated flexible elements 26d and 26e are also laminated with a thin plate such as stainless steel, and are fixed to the boss member 26a or 26b and the intermediate spacer 2 6c by bolts at different positions. The flexible coupling 26 also transmits torque on the same axis via the laminated flexible elements 2 6 d, 2 6 e. The allowable amount of offset is below I 0 m m and can actually be used with very little offset tolerance of 1 to 2 mm. The speed reducer (gearbox) 30 of the drive unit 27 of the openable and closable cooling roll 2 is fixed to a plate-shaped floating frame 32, which is a linear guide member attached to the lower bottom surface. 3 2 a slidably snaps in line -23 - 1247658 (21) Guide rail 3 ]. The electric motor 29 is mounted on the reduction gear 3 in a vertical arrangement orthogonal to the horizontal rotation axis of the cooling rolls 2A. The bearing housing 2 5 b is mounted on the carrier frame 25 c. The carrier frame 2 5 c is slidably engaged with the linear guide 23 by a linear guide member 2 5 d attached to the bottom surface of the &gt;. In addition, the linear guide is engaged with the bearing housing 2 in the same configuration. The floating frame 32 of the drive unit 27 has an extension 邰 3 2 b extending to the bearing housing 2 5 b side. The extension portion 3 2 b is a carrier frame 2 5 c detachably coupled to the bearing housing 25 5 b by a snap pin 3 2 c engageable/detachable at the front end. A clamp mechanism 33 is provided at a position directly below the floating frame 32 of the drive unit 27. The clamp mechanism 3 3 has: a flanged clamp member 3 3 b driven by a fluid pressure cylinder 3 3 a mounted on a bottom surface of the frame 4 ;; and fixedly mounted on a bottom surface of the floating frame 32, and The locking member 3 3 c is engaged with the jaw member 3 3 b. Further, the jaw member 3 3 b is a through-locking member 3 3 c, and therefore, the through-hole 3 3 d is an elongated hole toward the roll radial direction (rail direction), thereby being accompanied by a flanged jaw member 3 3 b Due to the lowering of the fluid pressure cylinder 3 3 a , the locking member 3 3 c is pulled down and the drive unit 27 is clamped and fixed to the bottom frame 40 at a suitable position in the radial direction of the roll. The film forming roll device RL 1 operates the pressure cylinders 3 6 and 3 7 in a state in which the clamp mechanism 3 3 is released (unclamped state), and causes the bearing housings 2 4 b, 2 5 b to face the roll radial direction. The roll is opened and closed by moving. The radial movement of the rolls of the bearing housings 2 4 b and 25b is guided in parallel by the linear guides 22, 23. -24 - 1247658 (22) When the roll is opened and closed, the drive unit 27 is guided by the linear guide 3] to the radial direction of the roll as the rolls of the bearing housings 2 4 b, 2 5 b move radially. mobile. Thereby, as the roll is opened and closed, the center axis of the roll and the center axis of the output shaft of the driving device 27 are not biased, and the connection between the cooling roll 2 1 and the output shaft 28 of the driving device 27 can be directly The combined type of flexible coupling 26 is carried out without the need for a complex universal joint like a Schmidt coupling. The roll forming apparatus for film forming having the above configuration has the following effects. (1) Since the electric motor 29 and the speed reducer 30 are directly coupled, no rotational fluctuation occurs. (2) Since there is no Schmidt coupling, the rotation variation in this portion does not occur. (3) Since the reduction machine 30 uses the spiral bevel gears 30c and 30d, the rotational variation in this portion is smaller than that of the worm wheel type. (4) Since the flexible coupling 2 6 is used, even if the moving position of the left and right bearing housings 2 4 b, 2 5 b of the cooling rolling mill 2 1 is slightly different, not the flat speed, it will not cause the speed reducer. 3 〇 and bearing damage. Although the absorption of the offset is only as small as several m m or so, it is adjusted in addition to the movement of the rolls, so that the cooling rolls 2 1 are aligned with the core of the speed reducer 3 ,, so that no rotation fluctuation occurs. (5) Due to the presence of the clamp mechanism 33, the film is not affected by the vibration of the reducer 30 during molding. (6) Since the roll gap 5 can be increased at the open position of the cooling roll 2], the operation of passing through the sheet is relatively easy, and the safety is increased. -25 - 1247658 (23) (7) The flexible coupling 2 can be removed and the roller 2 1 can be replaced without removing the gear unit 3 〇. (8) The bearing housing 2 5 b can be separated from the reducer 30 as long as the snap pin 3 2 c ' is pulled out. Therefore, the linear guides 2 3, 3 can be used to individually and easily guide the movement of the bearing housing 2 5 b and the speed reducer 30, and to ensure a conserved space. (9) Five or more cooling rolls can be provided in combination. In this regard, in the first embodiment, the number of rolls is set to two, but this number may be set to three, or one or more. This will show the specific embodiment thereof below. (Second Embodiment) First, a second embodiment of the present invention will be described with reference to a first drawing. The plan view is a plan view of the roll forming device rL2 of the second embodiment. The roll device RL2 includes a j-th cooling roll 1 1 as a fixed base roll, and second, third, and fourth cooling rolls arranged in parallel in front of the first cooling roll 1 1 as an open/close roll. 2], 321, 421 'and five cooling rolls 1 1, 21, 321, 421 ' 5 2 1 which are arranged in parallel with the fifth cooling roll 521 which is disposed in parallel behind the first cooling roll as the opening and closing rolls; The left and right bearings of the cooling rolls 1 1,2 1,3 2 1,4 2 1 , 5 2 1 12/13 ' 24/ 2 5,324 / 325,424/425,524/ 5 2 5 ; , 3rd, and 4th cooling rolls 2 ], 3 2 ], 4 2 ] The left and right bearings 2 4 / 2 5, 3 2 4 / 3 2 5, 4 2 4 / 4 2 5, let these -26- 1247658 (24) ·· Cooling rolls 2 1,3 2 1,4 2 1 with respect to the first, second, and third cold ·. but milk _ 1 1,2 1,3 2 ] opening and closing] and The second parallel drive unit dr 1 1 , D r 1 2 ' and the left and right bearings 5 2 4 / 5 2 5 of the fifth cooling mill are further advanced, so that the fifth cooling roll 5 2 ] is cooled relative to the first cooling a parallel drive mechanism D r 1 for the third and fourth parallel drive portions D r 1 3, D r 1 4 of the roll n opening and closing; The first, second, third, respectively, which rotate the first, second, third, fourth, and fifth cooling mills 1, 1 , 2, 3 2 1, 4 2 1, 5 2 1 , the fourth and fifth driving devices 1 5, 2 7, 3 2 7, 42 7, 5 2 7 and the first, second, third, fourth, and fifth rotational driving portions Dr 2 1 , D r 2 2, D ι · 2 3, D r 2 4, D ι · 2 5 rotary drive mechanism D r 2 . The parallel drive unit D r 1 1, D r 1 2, D 1· 1 3, D r 1 4 is a frame in which the spherical circulation type linear guiding member is attached to the left and right bottom frames F r 1 1, F Linear guides 2 2, 2 3 on r 1 2, and left and right bearings 24/2, 2, 4, and 5, respectively, 2, 3 2 1, 4 2 1, 5 2 1 25, 3 2 4/325, 424/425, 524/525, then by the hydraulic cylinder 3 6, 3 7, 5 3 6, 5 3 7 push-pull configuration. _ In each of the cooling rolls 1 and 2, 3 2 1, 4 2 1, 5 2 1 , the left shaft extension is connected to the refrigerant circulation pipe joint 1 1 e, 2 1 e, 3 2 1 e by means of a flange 42 1 e, 52 1 e 〇 The roll device RL 2 is similar to the first embodiment in order to make the second, third, fourth, and fifth rotary drive units DI· 2 2, D r 2 3,

Dr2 4, Dr25 floats relative to the right bearings 2 5, 3 2 5, 4 2 5, 5 2 5 of the aforementioned cooling rolls 21, 32], 421, 521, respectively, and these rotational drives D r 2 2 are carried, D r 2 3, D I. 2 4, D r 2 5 floating frame 3 2, 3 3 2, -27- (25) 1247658 4 3 2, 5 3 2 each of the left end is pivotally mounted to the corresponding bearing 5 2 5 carrying frame, on the other hand, the spherical circulating type in the floating frame 3 2, 3 3 2, 4 3 2, 5 3 2 below the linear guide 2 3 parallel and extended in the right bottom frame ρ Γ] 2 Guide the linear guide 3 1 and connect the first, second, third, and fifth devices with the flexible 瑕3 2 6,4 2 6,5 2 6 , 25,27,3 2 7,42 7,5 2 The torque output of 7 is rolled to the right shaft of 11, 21, 32 1, 42 1,521. Thereby, even in the case where the five cooling milks are light, the same operational effects as those of the first embodiment can be obtained. According to the above embodiment, the one end side of the roll having the both ends and being movable in the radial direction together with the bearing housing has a roll device for driving the roll rotating film forming, the driving device is front and rear, and a bearing housing connected to the aforementioned milk light by which the roller of the bearing housing is radially moved is additionally provided with a guide for guiding the rolling device for guiding the driving device, so that the driving device is guided by the aforementioned driving The roller can be moved radially with the bearing housing, and the driving device can also move with the bearing housing. Therefore, as the roller is opened and closed, the center axis of the roller center axis is not biased, so there is no need for it. A flexible coupler for coaxial connection. 25, 325, 425, the linear guiding member is set, and then the second connector 1 4, 2 6, 4, and the fifth driving shaft and the corresponding cooling 2 embodiment on the front bottom frame Fr2 are used, and are also supported by the bearing housing. The roll, and the thin bearing housing of the preceding drive unit are separately provided with one end, and the driving device that moves radially outside the lead straight guide is moved by the guide. The radial direction of the roll is moved to the drive joint of the drive unit. The connector constitutes the aforementioned -28- 1 247 658 (26), which has a caliper means for clamping the above-mentioned driving device to a frame fixed to the fixed side in a radial movement position of any of the rolls. Among them, the bearing housing of the driving device is detachably coupled. Here, the drive device has a vertically arranged electric motor orthogonal to the horizontal rotation axis of the roll and a reducer composed of a spiral bevel gear. [Effects of the Invention] As understood from the above description, the thin S-shaped peripheral car L-shun-kun apparatus according to the present invention does not require a universal joint such as a Schmidt coupling, and can be manufactured with a simple structure and a change in roll rotation. Thin film with low surface properties with high precision [Simplified illustration of the drawings] Fig. 1 is a plan view showing a conventional roll forming device for film forming. Fig. 2 is a front view of a torque transmission element of the roll device of Fig. 1. Fig. 3 is a plan view showing a roll forming apparatus for film forming according to the first embodiment of the present invention. Fig. 4 is a sectional view taken along line IV - I V of Fig. 3. Fig. 5 is a front elevational view showing the operation state of the torque transmission element of the roll device of Fig. 3. Fig. 6 is a VI-direction view of Fig. 4. Fig. 7 is a view of the VI] arrow of Fig. 4. -29 - 1247658 (27) Figure 8 is a cross-sectional view taken along line V 111 - V 111 of Figure 7. Fig. 9 is a sectional view taken along the line X-IX of Fig. 7. Fig. 10 is a plan view showing a roll forming apparatus for film forming according to a second embodiment of the present invention. [Main component symbol description]

1 1...first cooling roll 1 la···roller main body 1 lb, l 1c...shaft part 1 Id··remaining left end of refrigerant circulation 1 le...cooling circulation pipe joint]2··. bearing]2 b...bearing box 1 3 · · ·bearing 1 3b...bearing box

14···flexible coupling 1 4 a /i 4 b · · hub member 14^·· spacer 1 4d, 14e···layered flexible element 1 4f:, ] 4g: 1 4hr 1 4 !...eccentric bolt 15···first drive unit 1 5a···seat frame 1 6...torque output shaft 1 7···1st electric motor -30 - 1247658 (28) 1 7a···output shaft 1 8 ...1st reduction gear 1 8a;l 8b...spiral spur gear 1 8c j 8d·· spiral bevel gear 21...second cooling roll 2 1 a...roll main body 2 1b···shaft part

2 1bl...large diameter base 2 1 b 2...intermediate part 2 1 b3...bearing stop 2 1 c...shaft part 2] cl...large diameter base 2 1 c2...intermediate part 2 1 c 3...bearing stop 2 Id· ··The left end of the refrigerant circulation

2 le···Refrigerant circulation pipe joint 2 1 e 1...Refrigerant supply port 2 ] e 2 · · ·Return port 2 2,23...Linear guide 2 4...Bearing 24a... Radial bearing body 24b...Bearing box 2 4 c...bearing frame 24d...straight guiding member-31 - (29) . (29) .1247658 2 5...bearing 2 5a...push-pull bearing main body 2 5b...bearing box 2 5 c...·bearing frame 25d...straight line Bow|guide member 26...flexible coupling 26a···hub member 26al... body portion φ r\ I—\ 』tb -rV Γ7 / 0 az · · · na mm 2 6 b... hub member 26bl... body Part 2 6 b 2...Flange 咅β 2 6c^.. spacer 2 6 c 1,2 6 c 2...flange 咅26c3...body portion 26d...layered flexible element φ 26dl···elastic deformation 26e·· - Multilayer flexible element 26eL··. Elastic deformation 26f, 26g J6h, 26r·Eccentric bolt 2 7···Second drive unit 28... Torque output shaft 29···Second electric motor 2 9 a..._Outlet shaft -32- 1247658 (30) 30···2nd reducer 3〇a; 3 Ob...spiral spur gear 3 0 c,3〇d...screw bevel gear 3 1...linear guide 3 2···floating type Seat frame (floating frame) 32a···Line guiding member 3 2 b Left extension 3 2c...plug ο 〇 hr 4*^1^ 3 J... worm (2) several T 冉 33a, ... pressure cylinder 33b . . . · jaw member 33c ... locking member 3 3d ... through hole 3 6, 2 \ Ί... Cylinder 4 0.. • Bottom frame 40a ... Left frame 4 0b ... m Center frame 40c ... Middle frame 40d ... Right frame 112 , 113 Bearing 114 ... Connector 117 ... Electric motor 1 1 8 ... Output shaft 1 24 ,125 bearing-33- 1247658 (31)

126··· torque transmission element 1 2 6 a... input disc 1 2 6 b... output disc] 2 6 c... intermediate disc 1 26e, 1 26f... connecting rod 1 3 0... output shaft 3 2 bu·· The third cooling roll 32 le... the refrigerant circulation pipe joint J Ζ Η , JZJ **·Ping Tin bearing 3 2 6...flexible coupling 3 2 7···the third driving device 3 3 2...the floating frame 42 1... 4th cooling roll 42 le···Recycling pipe joint 424, 425... bearing

42 6...flexible coupling 42 7··. 4th driving device 43 2...floating frame 52 1...5th cooling roller 52 le···cooling circulation pipe joint 5 24; 5 2 5 .·· rate Bearing 5 2 6···Flexible coupling 5 2 7···5th drive unit 5 3 2...Floating frame - 34 - 1247658 (32) 5 3 6,5 3 7 ... Pressure cylinder Dr : Drive mechanism Dr 1 1 ... 1st parallel drive unit D r 1 2 ... 2nd parallel drive unit D r 1 3 ... 3rd parallel drive unit D r 1 4 ...· 4th parallel drive unit Dr2 ·· • Rotate ί drive Mechanism Dr2 1 ... 1st rotary drive unit ΊΓ \ - 〇〇 JL / XZZ ... bed 2 1 ^ ^ ^ Μ竿 驱动 驱动 drive ~ ^ rt7 pP Dr23 ... 3rd rotation drive part Dr24 ... 4th rotation drive part D r 2 5 ...5th rotary drive unit F r 1 .. •1st bottom frame Fr2.... 2nd bottom frame Fr 1 1 : , F r ] 2 ... Bottom frame B t... Transmission mechanism Rd... Reducer RL1, RL2 ...car L roller device

Claims (1)

(1) Patent Application No. 1247658. A roll forming apparatus for film forming comprising: a roll for forming a film; a bearing for supporting the roll; and a parallel drive unit for opening and closing the roll; The rotation drive unit that rotates the roll further includes: a movable connection means that connects the rotation drive unit to the movable state in a movable state; a parallel insertion means that advances the rotation drive unit and the bearing; and the rotation drive The torque of the portion is transmitted to the flexible torque transmitting element of the roller. 2. The roll forming apparatus for film forming according to claim 1, wherein the torque transmitting element includes a flexible coupler that can be coaxially connected. 3. The roll forming apparatus for film forming according to the first aspect of the invention, wherein the stepping means includes: a first guide for guiding the bearing; a second guide for guiding the rotation driving portion; and the first guide And the means for keeping the second guide parallel. The roll forming apparatus for film forming according to the first aspect of the invention, wherein the movable connecting means includes: a second frame member that holds the bearing; a second frame member that supports the rotation driving portion; And means for connecting the second frame members to a separable state. The roll forming apparatus for film forming according to the invention of claim 4, wherein the movable connecting means includes means for clamping the rotary drive unit to a fixed frame. 6. The roll device for film forming according to the above aspect of the invention, wherein the rotary drive unit includes an electric motor disposed in a longitudinal direction and a reducer having a spiral bevel gear coupled to the electric motor. -37 -