JPS6255505B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printing device for transferring patterns onto curved surfaces of mainly small items such as cosmetic lids and lighter cases.

The printing apparatus of the present invention will be explained below with reference to the accompanying drawings. FIG. 1 is a schematic plan view showing the printing apparatus of the present invention;
Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
In the figure, 1 is a turntable, 2 is a housing, and 3 is a liquid tank.

The turntable 1 is placed near the bottom inside the housing 2, and is intermittently rotated horizontally by 90 degrees by a motor 11 serving as a drive unit.

On the turntable 1, there are a plurality of liquid tanks 3,
For example, four liquid tanks 31, 32, 33, and 34 are arranged at equal intervals along the circumferential direction, and these liquid tanks 3 are connected to a lifting platform 12 provided on the turntable 1, such as an air cylinder. crowded lifting platform 1
It is placed on top of 2.

On the upper surface of the casing 2, two openings 21 and 21', which are slightly larger than the liquid tank 3, are opposite to each other in the front-rear direction (vertical direction in FIG. 1) and are located above the turntable 1. It is transparently installed so as to be present on the moving path of the liquid tank 3.

At the rear left side of the housing 2, there are a guide roller 41 that guides the film 40, a printing roller 42 that transfers the pattern to the film 40 guided by the guide roller 41, and a receiving roller 43 that comes into pressure contact with the printing roller 42. is placed, while the housing 2
A take-up roller 44 for winding up the film 40 is provided on the rear right side of the camera.

In applying printing ink to the printing roller 42, in this embodiment, a nozzle 45 is provided near the printing roller 42, and ink from an ink reservoir 46 is sent by a pressure pump 47, and the nozzle 45 is applied to the printing roller 42. It depends on the method of spray coating on 42. Each of the guide roller 41, printing roller 42, receiving roller 43, and winding roller 44 is connected to the film 4.
The developing means 4 develops the film 40 on the liquid level of the liquid tank 3 that has risen to the mouth of the rear opening 21'.

The film 40 may be cut in advance and supplied one by one, but in this embodiment, a series of films 40 is cut at the opening 21'.

For this purpose, a carbon dioxide laser 5 for cutting the film is provided in the upper part of the rear opening 21'.
is installed, and the carbon dioxide laser 5 cuts out the film 40 developed on the liquid surface of the liquid tank 3 into a predetermined size, for example, a square shape, as many as the number of objects to which a pattern is to be transferred. be.

A guide rail 61 extending in the left-right direction in FIG. 1 is provided on the front side of the upper surface of the housing 2, and a movable body 62 moves on this guide rail 61.

The movable body 62 is formed into a box shape so as to have a hanging part 63 for suspending an object therein.
It moves to the left in the figure and comes to rest at a position above the front opening 21 as shown by the chain line.

A liquid supply pipe 7 as a liquid supply means for supplying liquid to the liquid tank 3 is attached to the inside right side of the housing 2, and the liquid supply pipe 7 is connected to the liquid tank 3 located directly below, for example. In FIG. 1, a liquid is supplied to the liquid tank 34 so that the liquid overflows into the liquid tank 34, and in this way, the film residue generated when the film 40 is cut is caused to flow out.

Therefore, the printing apparatus of the present invention uses the turntable 1 as
Each process is performed by rotating the liquid tank 3 intermittently by 90 degrees, and the position of the liquid tank 3 and its relationship with each process will be explained below.

When the liquid tank 3 reaches the rear position of the housing 2 in FIG.
The film 40 placed on the opening surface of the liquid tank 3
expanded within.

FIG. 2 shows the film 40 being developed in the liquid tank 31, and the developed film 40 is cut into a predetermined size by the carbon dioxide laser 5. As shown in FIG. Then, when we focus on the liquid tank 31 and explain it,
After the liquid tank 31 is lowered together with the lifting platform 12, the turntable 1 rotates 90 degrees counterclockwise in FIG.
reach the position where it was.

At this time, the movable body 62 moves to the left in FIG. 1 and comes to rest on the opening 21 of the housing 2, and then the liquid tank 31 rises together with the lifting platform 12, and as shown in FIG. The object relatively presses the film 40 in the liquid tank 31.

Therefore, the film 40 is tightly adhered to the surface of the object by the hydraulic pressure of the liquid in the tank, such as water W, thereby transferring the pattern onto the surface of the object.

Thereafter, when the liquid tank 31 is lowered together with the lifting table 12, the turntable 1 is again rotated 90 degrees counterclockwise in FIG. 1 to position the liquid tank 31 on the right side of the housing 2.

When the liquid tank 31 reaches this position, liquid is supplied from the liquid supply pipe 7, and the film residue is removed as described above.

On the other hand, the moving body 62 moves to the first position after the liquid tank 31 has descended.
Moving to the right side in the figure, the film 40 is removed from the object suspended from the hanging section 63 by, for example, a chemical dissolution method, and then a new object is suspended from the hanging section 63.

By intermittently rotating the turntable 1 by 90 degrees counterclockwise in this manner, the process of developing the film 40 in the liquid tank 3, the process of transferring a pattern onto the surface of an object, and the process of removing film scum from the liquid tank 3 are performed. The steps will be carried out sequentially.

By the way, in this embodiment, the object pressing mechanism 6 is configured by the lifting table 12 that supports the liquid tank 3, the moving table 61, and the hanging part 63 provided on the moving table 62. Instead of using the elevating table 12, the mechanism 6 may be configured such that, for example, the liquid level of the liquid tank 3 is fixed at a predetermined height and the hanging portion 63 is moved up and down.

Since the printing apparatus of the present invention is as described above,
Using this will have the following effects.

A process of developing the film 40 onto the liquid surface of the liquid tank 3 and transferring the film 40 onto an object by arranging a plurality of liquid tanks 3 on the turntable 1 in the rotational direction and rotating the turntable 1 intermittently. Since the process and the process of removing film residue from the liquid tank 3 are sequentially performed, the number of processes per unit time can be increased without increasing the size of the apparatus.

Overflowing the liquid in the liquid tank 3 using a liquid supply means,
This removes film residue, so the device does not need to be complicated.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing the printing apparatus of the present invention, FIG. 2 is a sectional view taken along the line -- in FIG. 1, FIG. 3 is a sectional view taken along the line - - in FIG. It is a schematic diagram explaining the action of the object pressing mechanism. In the figure, 1 is a turntable, 3 is a liquid tank, 4 is a film developing means, 5 is a carbon dioxide laser as a film cutting means, 6 is an object pressing mechanism, and 7 is a pipe as a liquid supply means.

Claims (1)

[Claims] 1. A turntable that rotates intermittently, a plurality of liquid tanks arranged sequentially along the circumferential direction of the turntable, and a pattern-printed surface facing up on the liquid level of at least one of the liquid tanks. a film developing means for developing a printed film by using a film, and a structure in which an object is pressed against the film so that the film is partially or completely submerged in a liquid so as to transfer the pattern of the printed film onto the object, and the film is then pulled up from the liquid. and a liquid supply means for supplying a liquid to the liquid tank to overflow the liquid in the liquid tank, thereby causing film residue remaining in the liquid tank to flow out, the film developing means, the above-mentioned object pressing mechanism,
A curved surface printing apparatus characterized in that the liquid supply means are sequentially provided in the rotational direction of the turntable so as to face the respective liquid tanks when the turntable is stopped.