CN101121314A

CN101121314A - Ink box

Info

Publication number: CN101121314A
Application number: CNA2006101629177A
Authority: CN
Inventors: 何宏文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-08
Filing date: 2006-11-29
Publication date: 2008-02-13
Also published as: HK1100622A2

Abstract

The invention discloses an ink cartridge (100) for a printing machine, comprising a body (102) having a chamber (115) containing printing ink (116); a retainer ring (112) secured to the body (102) and adapted to contact the platen (114) in use; and a plurality of magnets (110) for attracting the retainer ring (112); wherein, when the retainer ring (112) is in contact with the printing plate (114), the distance between the printing plate (114) and the retainer ring (112) is shorter than the distance between the printing plate (114) and the magnet (110).

Description

Print cartridge

Technical field

The present invention relates to a kind of print cartridge (ink cup), particularly a kind of printing machine that is used for is as the print cartridge of pad printer (pad printing machine).

Background technology

As depicted in figs. 1 and 2, a print cartridge commonly used is appointed as numbering 10 prevailingly, comprises body 12, and it has the inner chamber 14 that is used to hold printer's ink 16.Print cartridge 10 is in a vertical end 18 closures, and opens at a vertically relative end 20.Center on the limit (rim) 22 that described opening end 20 is provided with an annular, be provided with a plurality of magnets 24 in it, and be fixed with an annular retaining ring (ring) 26.In use, this back-up ring 26 contact printing formes (printing plate) 28 formed an enclosure space that is used to limit printer's ink 16, and print cartridge 10 relative printing formes 28 are movable, so that stay China ink when printing on the etching notched pattern on the printing forme 28.

Can see that in Fig. 1 during in conjunction with printing forme 28, back-up ring 26 contacts with printing forme 28 at print cartridge 10, magnet 24 is positioned at the next door of back-up ring 26 and closely contacts with printing forme 28.A defective about such conventional apparatus is that the effect that forme 28 is understood the magnetic force that applies owing to magnet 24 is out of shape, for example, and shown in the position that Fig. 1 is labeled as D.This can cause the uneven wear of forme, reduces the service life of printing forme, influences the printing quality of workpiece, and has improved operating cost.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of improved print cartridge, can eliminate above-mentioned defective, or be at least commerce or the public provides a kind of useful selection.

The invention provides a kind of print cartridge that is used for printing machine, comprise a body part, have the chamber that is used to hold China ink; An annular element is fixed in described body part, and in use, suitable putting to contact with printing forme; And at least one is used to attract the magnet assembly of described annular element; It is characterized in that when described annular element contacted with described printing forme, the distance between described printing forme and the described annular element was compared and will be lacked with the distance between described printing forme and described at least one magnetic part.

Description of drawings

To with reference to the figure that encloses, specific embodiments of the invention be described only by the mode of example below, wherein:

Fig. 1 is the sectional view of conventional ink cartridge;

Fig. 2 is the profile of cutting open along Fig. 1 section line A-A;

Fig. 3 is the sectional view according to a print cartridge of the present invention; And

Fig. 4 is the profile of cutting open along Fig. 3 section line B-B.

The specific embodiment

According to Fig. 3 and print cartridge of the present invention shown in Figure 4, specifying it prevailingly is 100.Print cartridge 100 has one and is generally annular or oval-shaped body 102, and this body has first of a closure and vertically holds second of 104 and opening opposing vertically to hold 106.Center on the limit (rim) 108 that this openend 106 is provided with an annular, be provided with a plurality of magnets 110 in it.This openend 106 of body 102 is fixed in the back-up ring 112 of an annular, and described magnet 110 is fixedly arranged in the top of annular retaining ring 112.In use, back-up ring 112 is attracted by magnet 110, contacts with printing forme 114, has formed a closed inner chamber 115 that is used to limit printer's ink 116, and print cartridge 100 relative printing formes 114 are movable, so that staying China ink on the etching notched pattern on the printing forme 114 when printing.

Can see that in Fig. 3 when back-up ring 112 contacted with printing forme 114, the distance between printing forme 114 and the back-up ring 112 was compared and will be lacked with the distance between printing forme 114 and the magnet 110.Magnet 110 contacts with back-up ring 112, and by its support.Especially, back-up ring 112 has the first and second relative sides, and wherein first side is also in use contacting with printing forme 114 of point (sharp), and second side of back-up ring 112 contacts with magnet 110.Because magnet 110 is distributed along annular edge 108 by equal angles ground, the magnetic force that is produced by magnet 1 10 is also distributed along back-up ring 112 equably, therefore causes even contact between print cartridge 100 and the printing forme 114.Back-up ring 112 is by to small part being the manufacturing of magnet (ferromagnetic) material, and for example, iron, steel or cobalt are so that transmit magnetic force from magnet 110 to printing forme 114.

Find that in practice this device can guarantee that printing forme 114 can be securely in conjunction with print cartridge 100, and printing forme 114 can not produce distortion as the situation that print cartridge took place in the prior art.

Should be understood that the above-mentioned only mode by embodiment illustrates the present invention and why can implement, and various variations that the present invention is done and/or replace and do not deviate from spirit of the present invention.Should be understood that also that to briefly the of the present invention various technical characterictics of describing among the embodiment hereinbefore can separately provide or provide with the mode of the sub-portfolio of any appropriate.

Claims

1. print cartridge that is used for printing press comprises:

Body part, it has the chamber that is used to hold China ink;

Annular element, it is consolidated in described body part, and in use suitable putting to contact with printing forme; And

At least one magnet assembly is used to attract described annular element;

It is characterized in that when described annular element contacted with described printing forme, the distance between described printing forme and the described annular element was compared and will be lacked with the distance between described printing forme and described at least one magnetic part.

2. a kind of print cartridge as claimed in claim 1, its feature are that also described at least one magnet assembly contacts with described annular element.

3. a kind of print cartridge as claimed in claim 2, its feature are that also described annular element has the first and second relative sides, wherein, described first side is sharp, and suitable putting contacting with described printing forme, and second side contacts of described at least one magnet assembly and described annular element.

4. a kind of print cartridge as claimed in claim 1, its feature are that also described at least one annular element is supported by described annular element.

5. a kind of print cartridge as claimed in claim 1, its feature are that also described annular element has the ferrimagnet manufacturing at least in part.

6. a kind of print cartridge as claimed in claim 1, its feature also are, also comprise a plurality of magnet assemblies.

7. a kind of print cartridge as claimed in claim 6, its feature are that also described a plurality of magnet assemblies distribute along the annular edge equal angles of described body part.