JPS59153744A - Device for winding belt type object - Google Patents

Abstract

PURPOSE:To securely wind even a thin object by connecting the support plates for a first and a second pinch roller to each other on the rear of said first pinch roller and forming a guide surface by means of both of the support plates, in a winding device for magnetic tape, etc. CONSTITUTION:The support plate 101 for a first pinch roller 91 on the belt type object entering side, is supported by a swingable shaft 111 on the opposite side to the entering side, forming a guide surface 1011 for the belt type object. The support plate 102 for a second pinch roller 92 is supported by the first supporting plate 101 using a swingable shaft 112, forming a second guide surface 1021, which is connected to said guide surface 1011. A guide 16 in front of the pinch roller support plate 101 and a guide 17 on the rear of a third pinch roller, are arranged parallel to the tangential line connecting a guide roller 62 to a core 4, spaced with a gap as narrow as possible between each other. Thereby even a thin belt type object can be wound smoothly and securely, without being affected by the curling direction, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding device for strip-shaped materials such as microfilm, motion picture film, magnetic tape, etc., and in particular, to ensure so-called auto-loading in which the leading end of the strip is automatically wound onto a take-up reel. The purpose is to improve performance, stability, and reliability.

For example, in the microfilm league shown in Figure 1,
The tip of the microfilm F wound in a roll on the reel inside the cartridge 1 is sent out by a capstan roller 2 driven by a motor M1, and is wound around the core 4 of a take-up reel 3 which is being driven and rotated by a motor M2. In response to the autorope ink completion detection signal, the capstan 2 is moved back from the film surface by the solenoid SOL, the interlocking member 5, etc., and the drive motor M1 is stopped, and the film is then wound onto the reel 3 by the take-up motor M2. It is.

In the figure, M3 is a film rewinding motor, 61-62 are film kite rollers, L is an illumination lamp, 7 is a condensing lens,
8 is a projection lens. Note that the take-up rule 3 is the film F.
Although the core 4 has flanges at intervals slightly larger than the width of the core 4, the front flanges are omitted from the drawing for convenience. Further, the core has a peripheral surface formed of a high friction member 4a such as rubber.

2, the mechanism shown in FIG. 2 is conventionally known for autoloading the microfilm F. That is, a plurality of pinch rollers 91 to 93 are rotatably supported by arc-shaped support plates 101 to 103, respectively, and are arranged around the outer periphery of the core 4 at approximately equal intervals. Each support plate 10. ~103 is swingably attached to a shaft 11 placed on the film entrance side and protrudes in the film entrance direction, and rollers 9, ~103 are attached to the tip thereof.
93 on the bearing. 12 is a coil spring 12 wound around the swing shaft 11 of each support arm, and pinch rollers 91 to 93t
- Pressing toward the core 4 at all times. Note that this spring 12 can also be replaced with a leaf spring.

Then, the leading end of the film F is placed on a guide roller 62 on a fixed shaft immediately before the take-up reel 3. When it is guided by the fixed guides 13 and 14 and fed into the flange of the reel 3, comes into contact with the core 4, moves forward in the tangential direction as indicated by the dotted line Fa, and comes into contact with the support plate 10 of the first pinch roller 9I. Its support plate
The leading edge of the film is guided by the curved guide of o1 [m]
It faces the pinch roller 9 □ and is pressed against the core 4 and advances in the tangential direction Fb, and is fed between the roller 92 and the core 4 by the curved surface of the second pinch roller support plate 102 , and is also pressed against the third pinch roller 93 . It acts in the same way to wrap the leading end of the film around the core, completing autoloading.

However, in the configuration shown in FIG. 2, in order to avoid interference with the pinch roller support plate as the winding diameter increases, a space A without a guide is created in front of the first pinch roller 91 and inside the second pinch roller support plate 102. As the film becomes larger, the leading end portion Fb of the film hits the supporting plate 102 at a substantially right angle α as shown in the figure. Therefore, in the case of a reverse curl film or a weak film, it may jam in space A and the core 4
It didn't wrap well. Note that between the pinch rollers 9□093 of the second fist 3, the film is wound around the high friction member surface 4a over half the circumference of the core 4, so there is no problem in the space B between the pinch rollers 92 and 93.

The present invention eliminates the above-mentioned drawbacks and provides a winding device that can reliably and automatically wind up relatively thin strips or strips with curls at the ends without being affected by the direction of the curl. It is something to do.

That is, a plurality of pinch rollers 9□ to 93 are arranged at approximately equal intervals around the core 4 of the winding roll 3, and a support plate 10 rotatably supports each pinch roller and also serves as a strip guide.
In a strip winding device in which 1 to 103 are swingably provided,
The support plate lO3 of the first pinch roller 91 on the side where the strip material enters is moved to the swing shaft 11. to form a guide surface 101□ for the strip sent to the pinch roller, and
The 1S moving shaft 112 is connected to the first support plate 10. and the first pinch roller support plate 10. The rear guide surface 10.1 of the pinch roller 91 and the front guide surface lO2□ of the pinch roller 92 of the second pinch roller support plate lO7 are made continuous.

16 and 17 are the front side of the first pinch roller support plate 101,
With the strip guides provided at the rear of the third pinch roller support plate 103, the gap between the two is formed to be as narrow as possible and substantially parallel to the tangent line connecting the guide roller 62 and the core 4, that is, the direction in which the strip travels. As a result, the tip of the strip is smoothly guided to the core 4.

FIG. 5 shows the first pinch roller support plate 10. represents a plan view of Side plates 18 are bent to have a U-shape in cross section between the front guide surface 16 and the rear bearing surface 10°2. A first pinch roller 9. is positioned so that the shaft 20 is supported by the side plates 18, 18. 1. Position the narrow mounting portion 1022 formed at the front end of the second pinch roller support plate 102 in the narrow and long hole 21 on the bottom, and support the U-shaped bent portions 22 with the shaft 112. It is attached to the U-shaped side plate 18 of the plate 10.

A coil spring 12 (or leaf spring) is wound around a shaft 112 and each end is connected to a first support plate 10. It has a structure in which the upper surface and the lower surface of the second support plate 102 are respectively latched. Note that the first pinch roller support plate 10. The back surfaces of the bottom surfaces 23 on both sides of the narrow long hole 21 serve as the band guide surfaces 1011.

As described above, in the present invention, the swing fulcrum of the first pinch roller support plate is provided on the opposite side to the direction in which the strip material enters.

Since the swinging fulcrum of the second pinch roller support plate is provided on the support plate, the space C of the strip passage created by the winding core and the support plates of the first and second pinch rollers is narrow, and the guide surface can be constructed consecutively.

Therefore, even if the belt-like object has a reverse curling property, this is suppressed and the object is correctly advanced. In addition, the angle α of the tip of the strip that hits the pinch roller support plate is more acute than the conventional example shown in Figure 2, which, in combination with the above 5 effects, affects the curling direction and stiffness of the strip. Automatic autoloading is ensured without being overloaded.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a microfilm reader to which the present invention is applied, FIG. 2 is a configuration diagram of a conventional winding device, FIG. 3 is a front view of the winding device according to the present invention at the beginning of winding, and FIG. FIG. 5 is an enlarged plan view of a part of the present invention. 3 is a take-up reel, 4 is a core, 9I to 93 are pinch rollers, 101 to 102 are pinch roller support plates, 11□・11
2 is a swing shaft of the first and second pinch roller support plates, 101
．．・l 02 lha'MllJc object guide surface.

Claims (1)

[Claims] (1) A strip-like structure in which a plurality of pinch rollers are arranged at approximately equal intervals around the core of the take-up reel, and a support plate that rotatably supports each pinch roller and also serves as a strip-shaped material guide is swingably provided. In the article winding device, the support plate of the first pinch roller on the side where the strip material enters is attached to a swinging wheel located on the opposite side to the entrance side to form a guide surface for the strip material sent to the pinch roller. , a swing axis of the second pinch roller support plate is provided on the first support plate, and a guide surface on the rear side of the pinch roller on the first pinch roller support plate and a strip guide surface on the second pinch roller support plate. A sheet winding device characterized in that: