JP2532087Y2 - Screen holding structure in bottle printing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a structure for holding a screen in an apparatus for printing characters, designs, and the like on the surface of the body of a glass bottle, for example.

[Conventional technology]

In the bottle printing apparatus, when performing multi-color printing, the screen portion is provided with a screen mesh made of a conductive material, which is made of a conductive material, and which generates heat when energized. And the pigment supplied on the screen mesh can be quickly dissolved.

FIG. 5 shows a screen holding structure in a conventional bottle printing apparatus. In this figure, reference numeral 1 denotes a frame body 2 having a rectangular shape in plan view, and a flange provided so as to be continuous above the frame body 2. This is a metal screen frame including the portion 3. Reference numeral 4 denotes a screen mesh that is made of a conductive material and generates heat when energized. The screen mesh 4 is stretched at the lower end of the frame body 2 while being insulated from the screen frame 1. That is, a plurality of through holes 5 are opened in the flange portion 3, and an insulator 8 having a through hole 6 and a flange portion 7 is inserted into the through hole 5 from above the flange portion 3, and the frame body is In a state where the screen mesh 4 is insulated from the frame main body 2 by attaching the channel rubber 9 to the frame 2, the left and right and front and rear ends 4 A of the screen mesh 4 are pulled, and the end 4 A is stripped and clipped.
The power supply terminal 13 is provided via the washer 12 on the upper surface of the flange portion 7 of the insulator 8 while being held by 11 and applied to the lower end of the insulator 8. In this state, the screw 14 is inserted into the through hole 6. With nuts 15.

[Problems to be solved by the invention]

However, according to the screen holding structure in the above-described conventional bottle printing apparatus, the number of components for attaching the screen mesh 4 to the screen frame 1 in an electrically insulated state is large, and the structure is complicated. It took as long as 10 minutes to install the screen mesh 4.

The present invention has been made in consideration of the above matters, and has as its object to reduce the number of components required for mounting the screen mesh in an electrically insulated state with respect to the screen frame. Is easy,
An object of the present invention is to provide a screen holding structure in a bottle printing apparatus so that a screen mesh can be stretched in a short time.

[Means for solving the problem]

In order to achieve the above object, the screen holding structure in the bottle printing apparatus according to the present invention is provided with a secondary member made of a material having electrical insulation and melting by heating at the lower portion of the frame body of the screen frame. At the same time, the contact portion of the auxiliary member with the screen mesh is melted in a state where the screen mesh is applied to the auxiliary member, and the screen mesh 4 is applied to the auxiliary member in a state where tension is applied by the adhesive force. The screen mesh is fixed, and a power terminal is provided on the screen mesh.

[Action]

In the screen holding structure in the bottle printing apparatus having the above-mentioned characteristic configuration, the screen mesh is applied to the auxiliary member made of, for example, soft vinyl chloride resin provided at the lower portion of the frame main body of the screen frame. Only by melting the contact portion with the screen mesh, the screen mesh can be fixed in a state where tension is applied to the auxiliary member, and the number of parts required for mounting the screen mesh is reduced, and the mounting structure is simplified. Therefore, the screen mesh can be stretched in a short time. In this case, since a soft vinyl chloride resin is interposed between the screen mesh and the screen frame, both are maintained in a desired insulating state.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In these drawings, the same reference numerals as those shown in FIG. 5 indicate the same or corresponding components.

FIG. 1 shows an example of a screen holding structure in the bottle printing apparatus according to the present invention. Reference numeral 16 denotes an auxiliary member provided below the frame base 2 of the screen frame 1, and as shown in FIG. A horizontal contact portion 16A and a vertical contact portion 16B which are formed in a frame similar in shape to the frame main body 2 and abut on the lower end surface 2A of the frame main body 2 and the side surface 2B connected thereto, respectively. It is formed in a size that can be mounted on one side. The auxiliary member 16 having such a shape is integrally formed of a material having electrical insulation and melting by heating, such as a soft vinyl chloride resin, for example. 17
Is a power supply terminal provided at the end of the screen mesh 4.

The procedure for attaching the screen mesh 4 to the lower end of the frame main body 2 of the screen frame 1 will be described with reference to FIGS. 3 and 4. First, the auxiliary member 16 is attached to the lower end of the frame main body 2. , Its horizontal contact portion 16A and vertical contact portion 16B
Is attached using an adhesive so that the bottom surface 2A and the side surface 2B of the frame main body 2 come into contact with each other. Next, as shown in FIG. 3 (A), the screen mesh 4 is applied to the lower end side of the auxiliary member 16. In this case, tension machine 18
Thus, a predetermined tension is applied to the screen mesh 4. In this state, the iron 19 heated from the screen mesh 4 side is pressed against the lower end surface 2A of the auxiliary member 16 which is the contact portion with the screen mesh 4 as shown in FIG. A portion 16b of the auxiliary member 16 is melted, and the screen mesh 4 is fixed to the auxiliary member 16 by the adhesive force. Further, as shown in FIG. 4B and FIG. 4, a conductive member 20 is coated on the end 4A of the screen mesh 4, and then a power terminal 17 is attached to the conductive member 20 using, for example, a stepper. It is.

According to the screen holding structure of the above embodiment, the fixing of the screen mesh 4 to the screen frame 1 and the insulation between the screen frame 1 and the screen mesh 4 are auxiliary members.
Performed simultaneously by 16. Therefore, the fastening structure and the insulating structure are extremely simple, and the number of components is reduced, so that the screen mesh can be stretched in a short time.
Although it took a lot of time, according to the present embodiment, this can be performed in two minutes, and the time required for stretching can be greatly reduced. Further, a predetermined tension can be applied to the screen mesh 4, and high quality printing can be performed. Further, the used screen mesh 4 can be easily removed.

The present invention is not limited to the above embodiment. For example, the secondary member 16 may be made of an acrylic resin or a polyethylene resin other than the soft vinyl chloride resin.

[Effects of the Invention] Since the present invention is configured as described above, it is extremely easy to attach or remove the screen mesh from the screen frame. Now you can do it. Further, since the screen mesh can be held in a state where a constant tension is applied to the screen mesh, high quality printing can be performed.

[Brief description of the drawings]

1 to 4 show an embodiment of the present invention, FIG. 1 is a sectional view showing a state in which a screen is held on a screen frame, FIG. 3 (A), (B) and FIG. 4 are explanatory views showing the procedure for attaching the screen to the screen frame. FIG. 5 is a sectional view showing a screen holding structure in a conventional bottle printing apparatus. 1 ... screen frame, 2 ... frame body, 4 ... screen mesh, 16 ... sub member, 17 ... power supply terminal.

Claims (1)

(57) [Scope of request for utility model registration] 1. A screen holding structure in a bottle printing apparatus, wherein a screen mesh made of a conductive material and generating heat when energized is attached to a lower end side of a screen frame.
In the lower part of the frame body of the screen frame, has electrical insulation,
And, while providing a sub-member made of a material that is melted by heating, in a state where the screen mesh is applied to the sub-member, the contact portion of the sub-member with the screen mesh is melted, and the adhesive force is applied. While fixing the screen mesh to the secondary member while applying tension,
A screen holding structure in a bottle printing apparatus, wherein a power supply terminal is provided on the screen mesh.