JPS60122183A - Film feeder - Google Patents

Abstract

PURPOSE:To prevent wrinkling and enable destaticization, by providing a V- shaped member which makes contact with a film material fed in a direction, with a fixed pressure, and imparts a tension to the film material in the transverse direction of the material. CONSTITUTION:A V-shaped destaticizing brush 12 is provided on the operator's side of a guide roller 5. The brush 12 is so disposed that it is bent at a substantially central part of an ink sheet 1, it is in a V shape relative to the feeding direction of the ink sheet 1 so as to cover the substantially entire width of the sheet 1, and the tip thereof makes contact with a film base on the back side of the sheet 1 with an appropriate pressure. A self-discharge type destaticizer is used for the destaticizing brush 12. Accordingly, wrinkles are effectively removed, and electrostatic charges on the film base of the ink sheet 1 are removed.

Description

[Detailed description of the invention] old The present invention relates to a device for conveying and lowering film material.

In general, thermal transfer printers apply heat-melting ink and heat-sublimation ink to a film base 1-1 and dry it, as shown in Figure 1-1. and recording paper (f-sheet feeding) 2 are conveyed in the sub-scanning direction, and ink sheets 1 to 1 and recording are carried out between a recording head 3 and a platen 4 in which a plurality of recording elements are arranged in one line in the main scanning direction. While being in pressure contact with the paper 2, thermal transfer recording corresponding to each line of data is carried out sequentially.As for the recording head 3, in the case of a direct heating type, a heating element is used for the recording element. The thermal head is also energized (
In the case where the film base of the ink sheet is made conductive to generate Joule heat, heads each having a multi-needle electrode and a return electrode are used.

However, in such a thermal transfer printer, wrinkles are likely to occur when the ink sheet 1 is conveyed, which causes transfer defects.

Furthermore, especially when a material with chargeability is used for the film base of INKSY 1-1, static electricity is generated due to friction during conveyance, which causes conveyance failure.

Conventionally, in order to remove wrinkles from the ink sheet being conveyed, as shown in FIG. The tension is applied diagonally to the sheet 1, which is fed as a decoy.
7 11 (see i (i li 2) publication).

However, in such a device, the contact pressures of the tension rollers 6 and 7 with respect to the guide roller 5 must be balanced, and it is difficult to achieve this balance. In addition to preventing wrinkles on the ink sheet (4a), there is also a need to prevent static electricity (has not been taken into consideration, and for that purpose, a separate stage must be provided for the removal of ink sheet 1). ..

■Fried The present invention has been made with the above points in mind.

To provide a conveying device for a film 7 which is equipped with a means for preventing wrinkles and scratches on the conveyed fill material 11 material and at the same time preventing the material from becoming electrified. be.

In the following, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 shows an example of the configuration of a thermal transfer printer, in which an ink sheet 1 drawn out from a supply roll 8 side is sent to a recording head 3 section via a guide roller 5, and a sheet is fed from a paper feed roller 9. The ink sheet 1 and the recording paper 2 are brought into pressure contact between the recording head 3 and the platen 4, and are fed in the sub-scanning direction. Recording by thermal transfer is performed sequentially, and the recording paper 2 after the transfer is separated by a separation roller 10 and discharged to the outside, and the ink sheet 1-
1 is wound up on the take-up roll 11 side.

In such a thermal transfer printer, in the present invention, in particular, in order to prevent wrinkles from forming on the ink sheet 1-1 supplied to the recording section and to eliminate static electricity from the ink sheet 1, a roller is provided in front of the guide roller 5. A V-shaped static elimination brush 12 is provided. This static elimination brush 12
As shown in FIG. 4, the ink sheet 1 is bent at an appropriate angle approximately at the center, and
yn of ink sheet 1 so as to cover almost the entire width of ink sheet 1.
The brush is brushed in the feeding direction (indicated by the arrow in the figure) to form a V-shape, and the tip of the brush is placed in contact with the film base on the ink sheet surface with appropriate pressure. has been done. Further, this static eliminating brush 12 uses a self-discharge type static eliminating device.

However, it was constructed like this, and it was U 11
:.

When Inksy 1-1 is transported in the direction of the arrow in the figure.

The bending portion 3111 of the static eliminating brush 12 applies tension to the outer left and right sides of the r-sheet 1 . Therefore supply 1]-ru 8;/
J'1. Even if so-called waving or wrinkles (vertical wrinkles, (p (both components of L) are combined) occur in the supplied Ink Sea 1-1, the tension effect of the static elimination brush ■2 The ink sheet 1-1 is smoothed and the wrinkles are effectively removed by the wave J1.At the same time, the static charge on the film base of the r-tuck sheet 1 is removed by the neutralizing brush 12. Further, the brush tip of the static eliminating brush 12 is attached to the ink sheet 1.
-1 with appropriate pressure, it is possible to apply an appropriate pack tension to the ink sheets 1 to 1 conveyed from the supply roll 8 side to the take-up roll 11 side, effectively eliminating the slack during conveyance. You will be able to do this.

FIG. 5 does not show another embodiment of the present invention. In this case, instead of the static eliminating brush 12, two static eliminating roll brushes 13 and 14 are installed at an appropriate angle using a universal joint 1-18 or the like. A V-shaped brush is used, and the static elimination roll brushes 13 and 14 are rotated by a motor 15 in a direction opposite to the conveyance of the ink sheet 1-1. Note that there is no need to provide a dedicated motor 15; a motor for driving the platen 4 and take-up roll 11 in a thermal transfer printer may be used. Further, driving force is transmitted from the motor 15 to the static elimination roll brushes 13 and 14 via the bell 1, pulley means 16, and universal joints 1 to 17, respectively. However, even with this configuration, wrinkles in the ink sheet 1 that is fed IfrJ can be removed by
f) It is possible to perform static elimination together with the brush.
4 Since the ink sheet 1-1 is rotated in the opposite direction to the feeding direction, wrinkles in the ink sheet 1 can be more effectively removed. It goes without saying that instead of the static eliminating roll brush 13, 171, a simple rod-shaped static eliminating roller combined in a V-shape as shown in FIG.

In the above two inventive fill 11 conveyance device Ft -Iζ-
is transported in one direction) C Lezz, 11L, Knee・
Install a V-shaped member that contacts with a certain pressure and applies a force in the width direction of the fill material 11.
-/ , (I7!j combination t=l;l where the lume material has chargeability: In particular, since F'J is designed to use a V-shaped member as a static eliminating member, there is no need for any adjustment means due to the internal configuration. This method has the excellent advantage of effectively eliminating wrinkles in the film material being conveyed without the need for a wafer, and eliminating static electricity at the same time.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the basic configuration of a thermal transfer printer, FIG. 2 is a diagram showing a conventional ink sheet 1- wrinkle prevention means, and FIG. 3 is a diagram showing a thermal transfer printer when the present invention is specifically implemented. FIG. 4 is a plan view of a static elimination brush portion in the same embodiment, and FIG. 5 is a plan view of a static elimination roll brush portion in another embodiment. ■... Ink sheet 1-2... Recording paper 3... Recording head 4... Platen 5... Guide roller 8.
... Supply roll 11 ... Take-up roll 12 ... Static elimination brush 12° 14 ... Static elimination roll brush 15.
... Motor applicant's agent Kiyoshi Torii Figure 1 Figure 2 ± Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1. A film and conveying device that is provided with a V-shaped member that abuts with a constant pressure on the film 1144 conveyed in one direction and applies tension in the width direction of the film 1144. 2. The film feeding device 1° according to item 1 above, characterized in that the V-shaped member is a weight removing member.