CN1291548A

CN1291548A - Liquid capacity filling and dispensing device

Info

Publication number: CN1291548A
Application number: CN 00129254
Authority: CN
Inventors: M·R·霍克
Original assignee: Owens Illinois Closure Inc
Current assignee: BPrex Healthcare Brookville Inc
Priority date: 1999-09-29
Filing date: 2000-09-28
Publication date: 2001-04-18
Also published as: SG93266A1; CA2319606A1; ID27325A; KR20010050531A; BR0004527A; EP1088666A1; JP2001158114A

Abstract

A diaphragm 24 for attaching to a free edge of a perimetrical wall 18 of a pumping chamber 16 of a chassis 14 of a liquid containment and dispensing device 10, said diaphragm being preshaped to have a raised central portion 24a surrounded by a planar edge portion 24b. The diaphragm can move to flex with respect to the pumping chamber without leading to the formation of wrinkles in the planar edge portion. The dispensing device has a liquid containing pouch 19 that is formed by an opposed pair of generally cup-shaped members 21, 23 each of which has a generally planar free edge 21a, 23a, respectively, that is heat-staked to a perimetrical frame 17, which is formed integrally with the chassis and depends therefrom. The raised central portion of each of the cup-shaped members permits attachment of such cup-shaped members to the perimetrical frame without the formation of wrinkles in a perimetrical edge of each of the cup-shaped members.

Description

Liquid capacity filling and distributor

The application is the co-pending application NO.09/103 that is proposed by me, the subsequent application of 803 applications.

The present invention relates to a kind of liquid capacity filling and distributor.More particularly, the present invention relates to a kind of liquid capacity filling and distributor that has self-contained pump.Device among the present invention is used at the ink-jet printer splendid attire and distributes printing-ink.

United States Patent (USP) the 5th, 784, disclosed content by with reference to being incorporated into the present invention, discloses a kind of liquid capacity filling and distributor that has self-contained pump at this in No. 087 (Wallace etc.) in this patent, and improved this device is used at the ink-jet printer splendid attire and distributes printing-ink.Pump in the aforementioned means comprise one in the pumping chamber reciprocating linearly operating pumping element, wherein said pumping chamber is limited by perisporium, and this pumping chamber covered by a thin flexible membrane, this described diaphragm rolls material by a film and makes.Then this diaphragm is navigated on the free edge around the perisporium of pumping chamber by heat.

Utilization rolls the made flexible membrane of material essential extreme care when its heat being navigated on the pumping chamber perisporium by film, but, because need to remain abundant material at diaphragm middle part so that its fully deflection adapt to the pump action of pumping member, so this diaphragm has the trend of generation gauffer around its outside.In addition, when utilizing the heat location to be fixed to described diaphragm on the described perisporium, also need extreme care, to control the temperature in the hot positioning action, this is because too high temperature will be softened the film in the diaphragm, and low excessively simultaneously temperature will cause the sealing-in between diaphragm and perisporium second-rate.

Device described in aforementioned No. 087 patent has utilized a flexible pouch that is used for Ink cartridge, and this bag is made by a single sheet of material, and described individual flexible sheet material rolls material by a film again and makes.Related this bag only supports at openend, and is unsupported at its side and blind end.But, as the U. S. application patent sequence number that transfers present assignee is NO.08/892, instructed among 131 (Kamp), and it is disclosed such among the European patent families EP0891867A2, all wish to come Printing ink bag in this device of complete closed, and described base plate is communicated with the openend liquid of described bag by dangle a framework on this device base plate.This structure has strengthened this device impact load repellence.In this structure, still utilize the bag of making by individual flexible sheet material, the folded edge of pleated sheet is positioned on the side of described framework by heat in this device, rather than fixing each other.But, in this device, still have the trend that forms gauffer around the outer circumference of bag sheet material, it is formed at by heat and navigates to position on the described framework, so that can remain the cavity that enough materials are used for Ink cartridge at the sheet material middle part.

According to the present invention, provide a kind of liquid capacity filling and distributor at this, especially a kind of liquid capacity filling and distributor that is used at ink-jet printer splendid attire and distribution printing ink, it has a pumping chamber cover layer, and this cover layer can gauffer not take place around the outside of itself and pumping chamber perisporium free edge joint portion.In addition, also be equiped with a metallic coil side ring among aforesaid the present invention,, locate formed sealing-in by heat thereby strengthen between them to help the pumping chamber cover layer is fixed on the free edge of pumping chamber perisporium.

According to the present invention, the elimination of gauffer is to realize by preformed one sheet-like material in thermoforming is handled in the pumping chamber cover layer, thereby form an arching structure at the cover layer middle part, make its enough softness can adapt to the reciprocating motion of pumping member, and need not excess material in tectal ring circumferential portion.In most preferred embodiment of the present invention, described cover layer is made by a lamellar material, wherein this lamellar material is by the formed lamination material of two-layer or more multi-layered polymer thin film, in this laminated material, have suitable bonding between the adjacent layer, be used to prevent peel off between its middle level.Having the described film of one deck at least is a kind of material with good barrier oxygen and wet steam infiltration, such as ethylene-vinyl alcohol copolymer (EVOH), it is preferably used in the inside of laminated material, and have an innermost layer of making by low density polyethylene (LDPE) (LDPE), it has good flexible and when described wall and described liquid capacity filling and distributor base plate were by the formed parts of injection molded polyethylene, it can be attached on the perisporium of pumping chamber well.Then, make outermost layer in the pumping chamber cover layer,, be used for resisting preferably wearing and tearing and be used to prevent that the film member is attached on the thermal bonding jig such as nylon (a kind of polyamide material) by high thermal insulation polyester.

According to aforementioned sequence number is NO.08/892, enlightened in 131 applications, elimination to Printing ink bag gauffer in the device that has bag support frame, be by realizing by the formed bag of a pair of relative laminated foil, wherein each laminate all is pre-formed as an arching structure, such as, pass through thermoforming process.Then the edge thermal bonding of this preformed sheet material is navigated to the adjacent part on the peripheral frame, rather than fixing each other, in order to limiting a bag in its side and end sealing, thus can be with suitable mode Ink cartridge or other liquid.

Therefore, the object of the present invention is to provide a kind of improved, liquid capacity filling and distributor of having a self-contained pump type.More particularly, the object of the present invention is to provide a kind of liquid capacity filling and distributor that is used for as mentioned above at ink-jet printer splendid attire and distribution printing-ink.

The present invention also aims to provide a kind of in pumping chamber cover layer and aforementioned type liquid capacity filling and distributor improved combination the between the pumping chamber perisporium.

The present invention also aims to provide a kind of device that has an improved liquid packing bag of process and have the aforementioned techniques feature.

The present invention also aims to provide a kind of device with aforementioned techniques feature, wherein bring in the impact resistance that strengthens bag around its side and sealing by a frame loops, the side and the blind end sealing-in of described framework and described bag, and be under itself and peripheral frame calmodulin binding domain CaM can not form the prerequisite of bag material gauffer, not finish.

In order further to understand the present invention and purpose thereof, please be careful accompanying drawing and following to brief description of drawings, be careful detailed description, and be careful appended claim most preferred embodiment of the present invention.

Fig. 1 is a liquid capacity filling of the most preferred embodiment according to the present invention and the decomposition diagram of distributor;

Fig. 2 is the cutaway view that 2-2 along the line amplifies among Fig. 1;

Fig. 3 is the more partial view of vast scale of member shown in Fig. 2;

Fig. 4 is the front view of each assembly in installing shown in Fig. 1;

Fig. 5 is the end plan view of each assembly among Fig. 4;

Fig. 6 is the decomposition diagram of each assembly in the Figure 4 and 5.

One liquid capacity filling of most preferred embodiment and distributor are indicated by the Reference numeral among Fig. 1 10 usually according to the present invention.Liquid capacity filling and distributor 10 are assembled by a hard protection shell 12, the wherein end 12a of shell 12 sealing, and this end 12a is the upper end when installing device 10, such as, when being installed in the ink-jet printer.One molded plasticity base plate 14 is installed in the opposed open end 12b of shell 12, and base plate 14 has a pumping chamber 16 that is limited and surrounded by perisporium 18, and itself and base plate 14 are one-body molded.

The one pumping member 20 that schematically illustrates is positioned at the 16 inner and reciprocating motions within it of pumping chamber, and a helical spring 22 is used for bias voltage pumping member 20 makes it away from shell 12 blind end 12a.Pumping member 16 is by a lid or diaphragm 24 sealings, and the outside of this lid or diaphragm 24 is positioned at by thermal bonding on the free edge of perisporium 18, and described perisporium 18 is around pumping chamber 16.Utilize an aluminum crimping ring 26 that diaphragm 24 further is fixed on the perisporium 18 then, safe and reliable in whole print cartridge and distributor 10 life cycles further to guarantee the sealing-in between diaphragm 24 and the perisporium 18.

Make the middle part of diaphragm 24 move by the elastic force that overcomes helical spring 20, and and then make pumping member 20 in pumping chamber 16, move printing ink or other liquid are distributed from liquid capacity filling and distributor 10, thereby described liquid is pumped from a flexible pouch (not shown among Fig. 1), and wherein said flexible pouch is passed the downside (in the arrangement illustrated) that fluid issuing part 28 on the base plate 14 is fixed on base plate 14.As will be further described, use the crimping ring that installs crimping ring 26 in 10 among a corresponding Fig. 1 except in the device of institute's reference, disclosing, liquid capacity filling and distributor 10 are with aforesaid U.S. Patent the 5th, 784, and the method described in No. 087 is operated.

Device 10 among Fig. 2 is that with the difference of aforementioned institute comparable device diaphragm 24 is preformed, such as, handle by thermoforming, so that it has the ring limit part 24b on an arching middle part 24a and a plane, wherein this ring limit part 24b is positioned on the perisporium 18 on the base plate 14 by thermal bonding.Therefore, diaphragm 24 24a in the middle has enough excess materials and need not and has excess material at its ring on the part 24b of limit, as described above, with box lunch deflection as required when installing 10 pumping printing ink or other liquid.This excess material can cause in another planar diaphragm gauffer taking place, and problem will take place when it will cause on liquid capacity filling that the correct heat of a diaphragm is navigated to aforementioned type and distributor perisporium free edge.As the result of deflection circulation, this gauffer also might cause the permanent failure of diaphragm material.

Just as shown in Figure 2 with Fig. 3 in can clearlyer see that diaphragm 24 is to form by the different component polymeric material layer is stacked.Described layer comprises an innermost layer 24c who is made by any polyethylene family material, such as low density polyethylene (LDPE), linear low density polyethylene (LLDPE), high density polyethylene (HDPE) (LDPE, LLDPE, HDPE), two metallocene PEs, ethylene vinyl acetate and ethylene vinyl acetate, or its admixture, preferably its density is in the scope of 0.880g/cc.-0.964g/cc..All this materials all have good intensity and flexibility, and when base plate 14 be that it can fine underground heat navigates on the perisporium on the base plate 14 when being made by polyethylene.This diaphragm 24 also comprises an intermediate layer 24d, and it such as nylon and nylon copolymer, is preferably PVDC and EVOH by having good gas barrier property and making every the material of wet steam.Diaphragm 24 also comprises a polyester outermost layer 24e who selects, and selected polyester has high-melting-point, the characteristic that high-wearing feature and flex life are long, and such as nylon, nylon copolymer and polypropylene.As previously mentioned, because layer 24c, 24d can not adhere between the material of 24e well mutually, so be preferably in an adhesive phase 24f is set between the adjacent layer in the diaphragm 24, and 24g is to prevent layer 24c in use, and 24d peels off between the 24e.

As mentioned above, diaphragm 24 is preferably made by co-extrusion, this be because in co-extrusion technology the molecular weight of the adhesive that adopts usually above laminated composite material in the molecular weight of employed adhesive, the printing-ink that the adhesive of this higher molecular weight is not easy to being corroded property dissolves.

Though see that Fig. 2 and 3 can produce diaphragm 24 and have the impression of obvious thickness, but in fact, it is designed to the printing-ink of 100 milliliters on about splendid attire for the diaphragm 24 that is used for device 10, and as standard size, the gross thickness of this diaphragm 24 is approximately 5 mils (0.005 inch).

At molded plastic bottom board 14 peripheral frame 17 is arranged, it dangles on base plate 14 and becomes one with it, and framework 17 has the side member 17a that a pair of relative spacing is provided with, the bottom member 17c of a 17b and a horizontal expansion, this bottom member 17c extends between the 17b at side member 17a.Usually an open-ended bag that is referred to by Reference numeral 19 is by will be a pair of being sealed to side member 17a over against the free horizontal edge that is generally cup-

shaped member

21,23, and 17b and end member 17c go up and form, such as, utilize thermal bonding to locate.In this respect, each cup-

shape member

21,23 is made illustrated cup-shaped structure by a laminated thin sheet, such as, by thermoforming process, and form each cup-

shape member

21,23 laminated foil can, the laminate that is adopted when producing diaphragm 24 in the co-extrusion technology such as correspondence forms.Because each cup-

shape member

21,23 inboard is preformed, as mentioned above, the plane free edge 21a that it is corresponding, 23a need not to stand again any gauffer with framework 17 in adjacent part accurately mate, thereby form printing ink or other liquid that a bag 19 with enough internal capacities comes the splendid attire aequum, such as 100 milliliters of this liquid.Therefore,

member

21,23 thermal bondings are navigated on the framework 17 can not relate to this quality risk, the quality risk of related type when the plane sheets thermal bonding that is about to have enough internal capacities navigates to framework 17.

Though herein to proposing to be used to realize that best way of the present invention illustrates and describes by the inventor, but for the those of skill in the art of described technical field, carry out suitable modification without departing from the scope of the invention, variation and equivalent substitution are obviously, and scope of the present invention is only limited by the scope of following claim and legal equivalent scope thereof.

Claims

1. liquid capacity filling and distributor comprise:

Shell with an openend and blind end;

One is arranged in the base plate of described shell aperture end, and it has a peripheral frame that dangles from described base plate; And

One liquid packing bag, this bag comprises:

Opposed, the general preformed first and second cup-shaped members, each described cup-shape member has a flat substantially free edge, and the free edge of each described first and second cup-shape member is sealed on the peripheral frame of described base plate.

2. liquid capacity filling according to claim 1 and distributor, it is characterized in that described base plate and described framework are integrally formed by the formed individual sheets of thermoplastic material, wherein the first and second cup-shaped members of each described cardinal principle have the innermost layer of at least one thermoplastic material, and the described innermost layer thermal bonding by first and second members that each cardinal principle is cup-shaped navigates on the described peripheral frame, and the first and second cup-shaped members of each cardinal principle are sealed on the described peripheral frame of described base plate.

3. liquid capacity filling according to claim 2 and distributor is characterized in that the first and second cup-shaped members of each described cardinal principle are made by a laminate, and this laminate comprises the layer of described innermost layer and at least one described innermost layer outside.

4. liquid capacity filling according to claim 3 and distributor is characterized in that described laminate also comprises an outermost layer and an intermediate layer, and described intermediate layer has the performance of good obstruct oxygen and wet steam infiltration.

5. liquid capacity filling according to claim 4 and distributor, the material that it is characterized in that described intermediate layer are from nylon, and nylon copolymer is selected in one group of material that polyvinylidene chloride (PVDC) and ethylene-vinyl alcohol copolymer (EVOH) constitute.

6. liquid capacity filling according to claim 5 and distributor, wherein said outermost material are selected in one group of material of nylon copolymer and polypropylene from nylon.

7. liquid capacity filling according to claim 4 and distributor also comprise:

First adhesive phase between described innermost layer and described intermediate layer.

8. liquid capacity filling according to claim 7 and distributor also comprise:

Second adhesive phase between described intermediate layer and described outermost layer.

9. liquid capacity filling according to claim 2 and distributor, the thermoplastic material in wherein said base plate and the described framework is a polyethylene, and the thermoplastic material that respectively is roughly in the first and second cup-shaped members is selected from polyethylene family.