CN1082451C

CN1082451C - Home-positioning device for ink-jet printer

Info

Publication number: CN1082451C
Application number: CN97116876A
Authority: CN
Inventors: 李龙德
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 1996-09-03
Filing date: 1997-09-03
Publication date: 2002-04-10
Anticipated expiration: 2017-09-03
Also published as: KR19980019859A; KR100189161B1; CN1178168A

Abstract

A home-positioning device for ink-jet printer having double ink jet head, includes: a position changing support which has a first guide groove and a second guide groove with different incline angles; and a feeding device in which a first guide protrusion and a second guide protrusion are respectively inserted into the first and second guide grooves, and can be moved to a hoist status to tightly seal each nozzle of the ink jet head.

Description

The resetting means that ink-jet printer is used

The present invention relates to that a kind of ink-jet printer is used, salable resetting means (home-positioning device) of living the nozzle of ink gun.More particularly, the present invention relates to a kind of following used resetting means of ink-jet printer, it can eliminate the instantaneous locking state that produces in the starting point place of coming in to seal two ink guns before reset position.

As illustrated in fig. 1 and 2, a common printer utilizes a pair of ink gun 2 to carry out monochrome and colour print work on a piece of paper P, and this ink gun is carried together by a balladeur train 1.After printing finished, when print zone moved to the stand-by district that remains on stand-by state, or when not using printer, the nozzle 2a of ink gun 2 will seal up tightly and isolated with air at ink gun 2, and the China ink that residues in like this on the nozzle 2a just can not dry up.Install a resetting means 10 in stand-by district and prevent that the China ink on the nozzle 2a is dry.

The balladeur train 1 that ink gun 2 is installed thereon and moves is thereon connecting a lattice band (timing belt) 6, and this lattice band is driven and laterally moves through first and second lattices wheel (tining pulley) 5 and 5 ' by a motor 4.By mobile balladeur train 1, can move on to stand-by district to ink gun 2 from print zone, or opposite.

Resetting means 10 comprise one be installed in one print displacement support 11 on the machine support 3 and one in the inside of displacement support 11 feed arrangement 12 movably.Being used for the wiper 13 of cleaning nozzle 2a and the skull 14 that tightly seals up nozzle also is arranged on the pre-position on feed arrangement 14 tops.

Because two ink guns 2 are installed, and two wipers 13 and skull 14 have been installed on balladeur train 1, have been resetted and put device 10 and be microscler.

The feed arrangement 12 of resetting means 10 carries out following motion, promotes to be located at a guiding projection 15 on feed arrangement one side at the balladeur train 1 that moves between print zone and the stand-by district.Utilize one to keep spring 16 to make feed arrangement 12 repositions, keep spring 16 to be connected between feed arrangement 12 and the displacement support 11.

When ink gun 2 was shifted to stand-by district, the feed arrangement 12 of resetting means 10 (not shown) to the right moved, and enters the rising state thus; When ink gun was shifted to print zone, feed arrangement 12 was moved to the left and enters the decline state.

For mobile feed arrangement 12, on the front and rear of the both sides of feed arrangement 12, stretch out first and

second guide projections

17 and 17 '.And then, on displacement support 11, make first and second guide channels 18 and 18 ', first and second projections 17 and 17 ' insertion is wherein.

First and second guide channels 18 and 18 ' among, be provided with along level:

part

18a and 18a ' are shelved in first and second bottoms, at the decline state, the supporting of first and second guide projections 17 and 17 ' just thereon; Shelve

part

18b and 18b ' with first and second tops, thereon in the supporting of rising state first and second guide projections 17 and 17 ' just.Have the first and second chute part 18c of the first and second displacement L and L ' and 18c ' and be connected first and second bottoms and

shelve part

18a and 18a ' and first and second tops and shelve between part 18b and the 18b ', can make first and second guide projections 17 and 17 ' rising.

In said structure, first and second guide channels 18 and 18 ' in, the initial inclination angle that

part

18a and 18a ' and the first and

second chute part

18c and 18c ' are shelved in first and second bottoms is about 45 °.Be known that this angle is bigger, first and second guide projections 17 and 17 ' enter seamlessly transitting of rising state just to become difficult more.

Simultaneously, along with first and second guide channels 18 and 18 ' the inclination angle diminish, the first and second displacement L and L ' just should set longlyer.Thus, the resetting means excessive bulkiness that just becomes, this finally can increase the size of printer.Therefore, among existing resetting means, first and second guide channels 18 and 18 ' the inclination angle be made as about 45 °.

Yet, in the guide channel structure of existing resetting means 10, instantaneous locking state often takes place, wherein, first and second guide projections 17 and 17 ' along first and second guide channels 18 and 18 ' guiding face 18d move up, promptly shelve

part

18a and 18a ' and shift to first and second chute part 18c and the 18c ' from first and second bottoms.

Referring to Fig. 4, in initial mobile status, along with first and second guide projections 17 and 17 ' advance to the first and

second chute part

18c and 18c ', it is not very big making the y-axis shift power Fy of first and second guide projections 17 and 17 ' rising.

Therefore, after the balladeur train 1 that ink gun 2 is housed is finished printing, when balladeur train 1 is shifted to initial state and come the nozzle 2a of tight seal ink gun 2, promptly, just produced instantaneous locking state at " A " some place that shows of Fig. 3 A.If prevent this situation and increase gradually first and second guide channels 18 and 18 ' initial inclination angle, resetting means and the printer excessive bulkiness that will become itself.

The present invention is intended to address the above problem.

The objective of the invention is to provide a kind of resetting means that is used for ink-jet printer, it can eliminate the possibility that produces locking state under the situation that does not increase printer, thereby improves reliability of products.

In order to realize above-mentioned and other purposes of the present invention, a kind of resetting means that is used to have two ink gun ink-jet printers now is provided, it comprises: a displacement support, it has initial inclination angle first and second guide channels inequality; A feed arrangement, its first and second guide projections is inserted respectively among described first and second guide channels, and is movable to the rising state and comes tight seal to live the nozzle of each ink gun.

The general introduction and the following detailed description that it should be understood that the front only are exemplary and explanat, only are used to illustrate invention defined by the claims.

Provide following accompanying drawing for understanding invention:

Fig. 1 is the perspective view of existing ink-jet printer;

Fig. 2 is the schematic plan that is used for the existing resetting means of ink-jet printer;

Fig. 3 A and 3B are the vertical views of the duty of expression resetting means shown in Figure 2;

Fig. 4 be show bright in the resetting means of Fig. 2 the climbing power analysis chart along the guide projections of a chute;

Fig. 5 A is the perspective view that the present invention is used for the resetting means of ink-jet printer;

Fig. 5 B is the decomposition diagram of the resetting means of Fig. 5 A;

Fig. 6 A and 6B are the vertical views that shows the resetting means duty of bright Fig. 5; And

Fig. 7 shows the guide channel of the resetting means of the bright preferred embodiment of the present invention.

The present invention is described with reference to the accompanying drawings.

Referring to Fig. 5 A and Fig. 5 B, on a displacement support 110 of ink-jet printer, be provided with first and second guide channels 180 and 180 ', first and

second guide projections

170 and 170 of a feed arrangement 120 ' be inserted in wherein respectively.First and second guide projections 170 and 170 ' be movable to the rising state seal up the nozzle 2a of each ink gun 2.First and second guide channels 180 and 180 ' initial inclination angle set for mutual different, thereby prevented that first and second guide projections 170 and 170 ' initial are when mobile and instantaneous locked.

In other words, first and second guide channels 180 and 180 ' shelve part 181 and top in the bottom shelve be provided with between the part 182 a chute part 183, the second guide channels 180 ' the inclination angle of chute 183 be significantly less than the chute inclination angle of first guide channel 180.

In more detail, the chute part 183 of first guide channel 180 and bottom shelve that the inclination angle is maintained at about 45 ° between the part 181, and second guide channel 180 ' the inclination angle of chute part 183 less than about 40 °.

In the said structure of resetting means 100, at ink gun 2 when print zone prints, feed arrangement 120 keeps the elastic force of spring 160 to remain on down position by one, as shown in Figure 6A, then, finish at ink gun 2 and to print and when stand-by district was mobile, moving of balladeur train 1 just promoted a guiding projection 150, thereby move the feed arrangement 120 that is provided with guiding projection 150 thereon.

Therefore, feed arrangement 120 mobile makes first and second guide projections 170 and 170 ' along first and

second guide channels

180 and 180 of displacement support 110 ' move.Shelve part 182 through one and second guide projections 170 and 170 ' shelve from bottom part 180 along chute part 183 and move this moment towards the top.Thus, in that first and second guide projections 170 and 170 ' when part 182 was shelved at the arrival top, skull 140 sealed tightly the surface of the nozzle 2a of ink gun 2; But before sealing up nozzle 2a, wiper 130 is wanted earlier nozzle clearing 2a.

When sealing up nozzle 2a, a hook 190 is locked onto on the lock part 191, this lives in to device 120 with regard to stop.If ink gun 2 is shifted to print zone from stand-by district, balladeur train 1 is the last hook guiding device 192 of contact just, thereby the hook guiding device is pivoted.191 decontrol hooks 190 from the lock part thus, this has just decontroled feed arrangement 120.At this, feed arrangement 120 rises along the elastic force that keeps spring 160, thereby skull 140 is removed and opened nozzle from nozzle.

First and second guide channels 180 and 180 ' the inclination angle be set at about 45 ° and respectively less than about 40 °, in order after printing, to seal up nozzle 2a with skull 140, the balladeur train 1 that two ink guns 2 are housed at first moves right, and thus, the right flank of balladeur train has promoted the top of guiding projection 150.

At this moment, first guide projections 170 is about 45 ° first guide channel 180 and rises along initial inclination angle, and second guide projections 170 ' along initial inclination angle is about guide channel 180 ' rising of 40 °.Therefore, begin to move and when promoting feed arrangement 120, the nozzle 2a of ink gun 2 is just sealed up by skull 140, and does not produce any instantaneous locked when balladeur train 1.

Referring to Fig. 7, the inclination angle of the chute part 183 of first guide channel 180 is set at about 45 °, second guide channel 180 ' the inclination angle of chute part be set at less than about 40 °, this just first and second guide channels 180 and 180 ' the bottom shelve part 181 and 181 ' between formed difference in height.Therefore, first and second bottoms shelve part 181 and 181 ' and first and second tops shelve part 182 and 182 ' between the first and second displacement L and L ' just different.In the case, feed arrangement 120 a bit moves up on the bias, but has become level once arriving when the top is shelved on the part 182, and this moment, skull 140 closed nozzle 2a.

From above-mentioned, can be clear that, the resetting means that is used for ink-jet printer of the present invention can form first and second guide channels with different initial inclination angle, thereby the nozzle that has prevented monochromatic and color ink gun after balladeur train is finished printing initial instantaneous locked when mobile, can improve reliability of products in the situation that does not enlarge resetting means and printer

Those of ordinary skill in the art should be understood that in the situation that does not break away from spiritual essence of the present invention can carry out various modification and change, but these modification and change all drop in the claim institute restricted portion.

Claims

1. used resetting means of ink-jet printer with two ink guns, it comprises:

A displacement support, it has initial inclination angle first and second guide channels inequality; With

A feed arrangement, its first and second guide projections is inserted described first and second guide channels respectively, and is movable to the nozzle that the rising state tightly seals up each ink gun.

2. as claim 1 described device, it is characterized in that first and second guide channels respectively have a chute part of shelving extension between a part and the top rest portion branch in a bottom, the inclination angle of the chute part of described second guide channel is more slow than first guide channel.

3. as claim 2 described devices, it is characterized in that, is 45 ° in the chute part of described first guide channel and the inclination angle between the bottom rest portion branch, and the inclination angle between the chute part of described second guide channel and bottom rest portion are divided is less than 40 °.

4. as claim 3 described devices, it is characterized in that the bottom of described first and second guide channels is shelved part and had different vertical height.