CN103448370A

CN103448370A - Ink box

Info

Publication number: CN103448370A
Application number: CN2013100027669A
Authority: CN
Inventors: 何永刚
Original assignee: Print Rite Unicorn Image Products Co Ltd
Current assignee: Print Rite Unicorn Image Products Co Ltd
Priority date: 2013-01-02
Filing date: 2013-01-02
Publication date: 2013-12-18
Anticipated expiration: 2033-01-02
Also published as: CN103448370B

Abstract

The invention provides an ink box which is simple in structure and easy to manufacture. The ink box comprises a box body and an ink outlet nozzle, wherein the box body is used for storing ink in a negative pressure state, and the ink outlet nozzle is used for supplying the ink to ink-jet printing equipment. The box body comprises an inner-layer plastic film and an outer-layer paperboard, wherein the inner-layer plastic film and the outer-layer paperboard are connected into a whole. When the ink box is installed to the ink-jet printing equipment, if the ink-jet printing equipment is in a non-operating state, the box body can resist the pressure difference between the inner side and the outer side of the box body, so that deformation does not occur to the box body; if the ink-jet printing equipment is in an operating state, the box body can shrink towards the inside of the ink box. According to the ink box, the purposes of ink leakage prevention and stable ink supply can be achieved just through the box body, therefore, the structure of the ink box is greatly simplified, and the manufacturing difficulty and manufacturing cost of the ink box are lowered.

Description

Print cartridge

Technical field

The present invention relates to a kind of print cartridge for ink jet printing device.

Background technology

In ink jet printing device, usually use removably is mounted to ink jet printing device and the print cartridge that is connected with printhead provides ink for printhead.Existing a kind of soft bag Ink cartridge with structure 1 as shown in Figure 1; comprise one for the soft bag 11 and of storing the ink (not shown) for wrapping up the carton 12 of soft bag 11; carton 12 adopts hardboard to make, and can bear certain external impact and remain unchanged shape and play the effect of protecting soft bag 11.The bottom of soft bag 11 is provided with ink outlet mouth 20, and ink outlet mouth 20 extend out to carton 12 outsides through being arranged at the opening of carton 12 bottoms.The ink supply port 21 of ink outlet mouth 20 can be connected with printhead and by the providing ink in soft bag 11 to the printhead (not shown), be provided with the check valve 22 of controlling ink flowrate and preventing ink leak in ink supply port 21.

The ink jet printing device (not shown) is provided with a tubing pump repeatedly aspirated from the interior suction ink of print cartridge 1, and the structure of the size of tubing pump draft and check valve 22 has determined the flow of ink jointly.For guaranteeing accurate ink feed, require check valve 22 to there is very high structure precision, so the complicated process of preparation of print cartridge 1, difficulty of processing is high.Particularly, in the situation that the ink capacity in soft bag 11 is larger, make carton 12 can support, protect soft bag 11, need to use screw that carton 12 and ink outlet mouth 20 are fixed together, now the structure of print cartridge 1 is more complicated, and the preparation difficulty is higher.

Summary of the invention

Main purpose of the present invention be to provide a kind of simple in structure, be easy to the preparation print cartridge.

For realizing above-mentioned main purpose, the invention provides a kind of print cartridge that removably is mounted to ink jet printing device, this print cartridge has with the box body of negative pressure state storage ink with for supply with the ink outlet mouth of ink to ink jet printing device, box body comprises inner plastic film and the facing board connected as one, when print cartridge is mounted to ink jet printing device, at ink jet printing device under off working state, box body itself can be resisted the pressure differential of the inside and outside both sides of box body and deformation not occur, under ink jet printing device is in running order, box body can be to the print cartridge internal contraction.

Because print cartridge has the pressure differential that can resist both sides inside and outside box body, therefore the box body that deformation does not occur utilize box body self can maintain ink in negative pressure state, without using check valve can reach the purpose that prevents ink leak.Simultaneously, when ink jet printing device is in running order, box body can be to the print cartridge internal contraction to carry out stable ink supply.As can be seen here, this technical scheme is greatly simplified the structure of print cartridge, has reduced manufacture difficulty and the manufacturing cost of print cartridge.

Further, print cartridge also comprises backplate, and backplate is fixedly connected with ink outlet mouth, and keeps its original shape under the pulling force effect that can produce because of contraction at box body.

Still keep its original shape under the pulling force effect that can produce because of contraction at box body due to backplate, therefore ink outlet mouth can keep its initial position equally under this pulling force effect, this can effectively suppress the ink outlet mouth that the distortion due to box body causes and tilts, so the prevention ink leak defect that tilts to cause due to ink outlet mouth or take out print cartridge after inconvenience while again installing.

Preferably, the print cartridge in technique scheme also has handle, is arranged on the box body of a side relative to ink outlet mouth.By on the box body in a side relative to ink outlet mouth, handle being set, can carry out easily dismounting and the fitting operation of print cartridge on ink jet printing device.

The accompanying drawing explanation

Fig. 1 is the structural representation of existing a kind of soft bag Ink cartridge with structure;

Fig. 2 is the stereogram of print cartridge of the present invention;

Fig. 3 is the structural representation of print cartridge of the present invention.

The specific embodiment

Below, in conjunction with the preferred embodiment of Fig. 2-3 explanation print cartridge 1 of the present invention.

Print cartridge 1 has a box body 10 for storing the ink (not shown), and the bottom of box body 10 is provided with ink outlet mouth 20, and the top of box body 10 is provided with a handle 30.Ink in box body 10 can outwards be supplied by the ink supply port 21 of ink outlet mouth 20, and ink supply port 21 is by self-closing sealing-plug 23 sealings.

Ink is stored in box body 10 with negative pressure state, and this negative pressure should remain on the scope of regulation with respect to the pressure in printhead, makes when print cartridge 1 is mounted to ink-jet printer, and the ink in box body 10 can not leak from printhead.Because ink is stored with negative pressure state, therefore in the inside and outside both sides of box body 10, can produce the first pressure differential.In the present invention, the box body 10 of print cartridge 1 is prepared from by the material with certain rigidity, makes print cartridge 1 have such characteristic: box body 10 can be resisted the first pressure differential of its inside and outside both sides and the contraction towards box body 10 inside can not occur.Because box body 10 can not shrink under the effect of the first pressure differential, therefore, when ink-jet printer, during in off working state, the negative pressure in box body 10 can stably keep within the limits prescribed, and ink can not leak from printhead.

When ink jet printing device is worked, tubing pump is from the interior suction ink of print cartridge 1, and the pressure in printhead reduces, and produces the second pressure differential between box body 10 inside and printhead inside, and ink is supplied to printhead under the driving of the second pressure differential, provides and prints with China ink.Providing ink is to printhead, and the ink in box body 10 reduces, and the also corresponding reduction of pressure in box body 10 now will produce the 3rd pressure differential that is greater than the first pressure differential in the inside and outside both sides of box body 10.Print cartridge 1 of the present invention has such characteristic simultaneously: the contraction towards box body 10 inside can occur in box body 10 under the effect of the 3rd pressure differential, also corresponding increase of pressure in box body 10, so that the second pressure differential between box body 10 inside and printhead inside maintains within the limits prescribed, guarantee that ink can need to be supplied to printhead according to predetermined.Above-mentioned providing ink process dynamics repeats, and assurance print cartridge 1 can be stablized ink supply to printhead.

When ink jet printing device changes off working state into by duty, tubing pump stops from the interior suction ink of print cartridge 1, the pressure differential of box body 10 inside and outside both sides will be decreased to the first pressure differential and be remained stable by the 3rd pressure differential gradually along with the contraction of box body 10, thereby print cartridge 1 stops to the printhead ink supply, and ink can not leak from printhead.

Utilize the thermal weld mode that this shape is fixed and obtain box body 10 after sheet material with suitable rigidity can being folded into to required form.A kind of stratified material as the sheet material example comprises: the inner plastic film, for intercepting ink and gas; Facing board, for giving box body 10 required suitable rigidity.Can plastic foil and paperboard bonding be integrated by binding material, also can plastic foil and cardboard directly be connected as one by the mode of hot pressing.Plastic foil can be used the plastic foil of the materials such as PP, PE, PVDC, nylon or use evaporation that these plastic foils of aluminium are arranged, also can, by respectively by the plastic foil of the materials such as PP, PE, PVDC, nylon or the stacked use of these plastic foils that evaporation has aluminium, for example PP film and PVDC pellicular cascade be used.Facing board is preferably used the hardboard with certain rigidity, thereby can give aptly box body 10 with needed rigidity.

Further, print cartridge 1 also comprises a backplate 40 be fixedly connected with ink outlet mouth 20.Be provided with the localization part 41 that can coordinate with ink-jet printer on backplate 40, when print cartridge 1 is mounted to ink jet printing device, localization part 41 makes print cartridge 1 be positioned with respect to ink jet printing device.The preferential backplate 40 that uses resin material, and backplate 40 and ink outlet mouth 20 are formed.Also can utilize the mode of thermal weld that backplate 40 is fixedly connected with ink outlet mouth 20.Backplate 40 has extraordinary rigidity, so that, when ink is supplied to printhead by print cartridge 1, no matter box body 10 produces great contraction distortion, backplate 40 all can be resisted the pulling force produced due to this contraction distortion and almost keep its original shape.Therefore, even the distortion of box body 10 occurs along with the discharge of ink, ink outlet mouth 20 still can keep its initial position substantially, this can effectively suppress the ink outlet mouth 20 that the distortion due to box body 10 causes and tilts, so the prevention ink leak defect that tilts to cause due to ink outlet mouth 20 or take out print cartridge 1 after inconvenience while again installing.

Claims

1. print cartridge, for removably being mounted to ink jet printing device, described print cartridge comprises with the box body of negative pressure state storage ink with for supply with the ink outlet mouth of ink to described ink jet printing device, it is characterized in that:

Described box body comprises inner plastic film and the facing board connected as one;

When described print cartridge is mounted to described ink jet printing device, at described ink jet printing device under off working state, described box body itself can be resisted the pressure differential of the inside and outside both sides of described box body and deformation not occur, under described ink jet printing device is in running order, described box body can be to described print cartridge internal contraction.

2. print cartridge as claimed in claim 1 is characterized in that:

Backplate, be fixedly connected with described ink outlet mouth, and keep its original shape under the pulling force effect that can produce because of contraction at described box body.

3. print cartridge as claimed in claim 1 or 2 is characterized in that:

Handle, be arranged on the box body of a side relative to described ink outlet mouth.