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Molding apparatus and molding method using a transfer film

A technology of transfer mold and film, which is applied in the field of transfer molding devices, can solve problems such as deceleration, and achieve the effects of increased film feed speed, film vibration elimination, relaxation and vibration elimination

Inactive Publication Date: 2008-04-23
NISSHA PRINTING COMPANY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this point, the transfer film is stopped so that the longitudinal sensor is past the other end of the longitudinal registration mark due to inertness that cannot decelerate sufficiently

Method used

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  • Molding apparatus and molding method using a transfer film
  • Molding apparatus and molding method using a transfer film
  • Molding apparatus and molding method using a transfer film

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Embodiment Construction

[0081] Before proceeding to describe the present invention, it is noted that like parts are indicated by like reference numerals throughout the drawings. A first embodiment according to the present invention will be described in detail below with reference to the accompanying drawings.

[0082] As shown in Figures 1 and 2, the transfer molding device has a transfer molding part 100, which includes a fixed mold 2 installed on a fixed base 1, a movable mold 4 installed on a movable base 3, and a mold for melting The resin is injected into the injection nozzle 5 formed in the cavity between the two molds 2,4.

[0083] In the transfer molding apparatus according to this embodiment, the fixed base 1 is fixed to the base 6, and the movable base 3 is guided and moved by four tie rods 7 fixed to the fixed base 1 so as to approach and move away from the fixed base 1.

[0084]By means of the movement of the movable base 3, it is possible to switch between the closed state and the open ...

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Abstract

The revolution angle of film feeding rollers (44, 45) are controlled so that a transfer film (20) is moved in the feeding direction thereof by a feeding amount being set slightly larger than the interval between adjacent longitudinal direction positioning marks (22) and then stopped before transfer molding is carried out by a transfer molding section (100), the film feeding rollers (44, 45) are driven to move the transfer film (20), having been moved in the feeding direction, in the returning direction, the revolution angle of the film feeding rollers (44, 45) are controlled and the transfer film (20) is stopped at a longitudinal direction transfer position after a longitudinal direction positioning mark detection section (30) has detected the longitudinal direction positioning mark, a stationary mold (2) and a movable mold (4) are closed, molten resin is injected into the cavity formed therebetween from an injection nozzle (5), and the decoration on the transfer film (20) are transferred to molded products in synchronization with molding.

Description

technical field [0001] The present invention relates to a transfer molding apparatus and a transfer molding method in which a transfer film is held between molds, and a decorative portion on the transfer film is transferred to a molded product synchronously with molding. Background technique [0002] As a transfer film positioning method in a conventional transfer molding apparatus, the method disclosed in Japanese Patent Laid-Open No. 3-56650 is available. A transfer film positioning method for such a conventional transfer molding device is a film positioning method of a transfer molding device including a longitudinal movement device for feeding a transfer film in a longitudinal direction and a longitudinal sensor for detecting longitudinal registration marks on the transfer film. This method is characterized in that the longitudinal moving device is driven in the feeding direction to feed the transfer film, and the driving of the longitudinal moving device is stopped so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/14B65H23/188
CPCB65H2511/512B65H2511/21B65H23/1882B65H2513/40B29C2045/14172B29C45/14016B65H2220/02B65H2220/11B65H2220/01B29C45/14B65H23/188
Inventor 伊藤忠广大上善裕樋口敏明屋木晋
Owner NISSHA PRINTING COMPANY
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