CN1621238A

CN1621238A - Medium level retaining device for digital printer

Info

Publication number: CN1621238A
Application number: CNA2004100084910A
Authority: CN
Inventors: 崔宽洙
Original assignee: DGI Co Ltd
Current assignee: DGI Co Ltd
Priority date: 2003-11-24
Filing date: 2004-03-12
Publication date: 2005-06-01
Anticipated expiration: 2024-03-12
Also published as: KR100553836B1; CN100572082C; KR20050049917A; JP2005154142A; JP3940125B2

Abstract

The invention provides a media horizontally holding device of a digital printer, capable of horizontally holding media, when rolling up the printed media. This constitution rolls up a paper feeding roller by printing on the media supplied from the paper feeding roller, and has a rotary shaft arranged in a hollow part inside of a media support table for horizontally holding the media, and is constituted by arranging a pinion gear on both sides of the rotary shaft. Thus, when a media horizontally holding means vertically moves by a rack gear fixed to a guide member, the media can be always horizontally held.

Description

The horizontal holding device of the medium of digital printer

Technical field

The present invention is about a kind of digital printer, particularly printing on the medium of supplying with by paper feed roller and in the constituting of coiling paper feed roller about a kind of, be used for keeping the hollow bulb of inboard of the medium support seat of level to be equipped with the turning axle that is connected in both sides medium, and utilize and to be provided with pinion wheel in the both sides of aforementioned turning axle and to be fixed on rack-and-pinion gearing on the guiding elements, when the medium level kept rod to move up and down, no matter medium was the horizontal holding device of medium with the digital printer of the rolled-up also maintenance level always of which kind of state.

Background technology

In general, digital printer (Digital Printing MaChine) is a kind of digital control the input signal digitizing with hope, and to printhead (Head) supply red (M) of spraying ink droplet, yellow (Y), blue (C) three primary colours, and color is spread upon on the print paper (below be called medium), and utilization can be made the subtractive color process of variety of colors and be depicted the up-to-date printer of the desirable pattern of user.

Owing to use aforementioned subtractive color process, can make to have versicolor ink and accommodated respectively, and feed to the printhead that shades of colour is scanned, and be smeared once more and new color occurs by the ink that makes the various colors that are scanned from printhead.

Figure 1 shows that the stereographic map of well-known digital printer major part, Figure 2 shows that the pie graph of the horizontal holding device of medium of well-known digital printer, Figure 3 shows that the movement state diagram of the horizontal holding device of well-known medium.

By the user mode of well-known digital printer as can be known, the top of the pedestal of being supported at the pillar 1 that utilizes the both sides contact with the bottom surface 3, be provided with railway line handover seat 5, and on aforementioned handover seat 5, be combined with the chuck 9 that printhead 7 is fixed on a side movably.

And, owing on aforementioned pedestal 3, be supplied to medium (Media) as print paper from the paper feed roller 11 at the back side that is located at digital printer, so when chuck 9 moves back and forth about quilt on aforementioned medium, interlock and the ink of certain color is scanned and carries out presswork therewith by printhead 7, and, the medium (A) that is printed is wound onto on the take up roll 12 in an opposite side of aforementioned paper feed roller 11.

Aforementioned medium (A) is at the well-known term of this industry, is meant the object that the ink that aforementioned printhead 7 sprayed by paper and cloth etc. is output.

Be formed with the action control panel 16 that utilizes case 15 to be capped on the top of aforementioned pedestal 3 one sides, can import the signal that the user wishes, and under the state of the medium (A) of hope, print.

In a side of aforementioned pillar 1,, be respectively arranged with 4 main ink cartridges 13 that are used to supply with red (M), yellow (Y), blue (C) and black (K) etc. with by the state of keeping in ink keeping housing 14.

And the opposition side at the printhead 7 of aforementioned chuck 9 is provided with auxiliary ink box 17, be used for supplying with inks to aforementioned printhead 7, and aforementioned auxiliary ink box 17 is to supply with inks by aforementioned main ink cartridge 13.

On the other hand, as shown in Figure 2, aforementioned medium (A) can make medium (A) maintenance level and have certain force of strain for after being supplied to by aforementioned paper feed roller 11 and printing when being wound in take up roll 12, keep rod 30 and be provided with the medium level at the lower position place of aforementioned take up roll 12 inboards.

Aforementioned medium level keeps rod 30 to contact with fixing facial 24 at the medial surface of pillar 1, and to utilize the bullport 22 of the clamped guiding elements 20 of several clamping components 26, state that guide reel 32 is prevented from breaking away from the jut 28 that is fastened and insert setting, and, move up and down the level that simultaneously keeps medium 1 on one side according to the variation of the tension force that is produced because of the handover speed of aforementioned medium (A).

Aforementioned medium level keeps rod 30 because aforementioned 2 guide reels 32 move with different formations, so can move by the different state of both-side ends height.

Yet, as shown in Figure 3, when the width of the aforementioned medium of being printed (A) narrower and when medium (A) tilt to be printed to the right, keep the length difference of rod 30 as the aforementioned medium level of supporting medium (A) to two side-prominent parts, for example left part is grown and right side part weak point, then the tension force that medium (A) is applied becomes big in left part, so can form excessive heavy burden to the left side.

Therefore, owing to be used to keep the medium level of the level of aforementioned medium (A) to keep rod 30 to tilt to the left, make the medium of being supported (A) can't keep level and produce inclination, so have printed media (A) correctly, and can not make medium (A) correctly be wound on problem on the take up roll 12.

Summary of the invention

The purpose of this invention is to provide in view of the above problems a kind of and propose, on the medium of supplying with by paper feed roller, print and the constituting of the paper feed roller of reeling in, be used for keeping the hollow bulb of inboard of the medium support seat of level to be equipped with the turning axle that is connected in both sides medium, and utilize and to be provided with pinion wheel in the both sides of aforementioned turning axle and to be fixed on rack-and-pinion gearing on the guiding elements, when the horizontal holding device of medium moved up and down, no matter medium was the horizontal holding device of medium with the digital printer of the rolled-up also maintenance level always of which kind of state.

In order to reach above-mentioned purpose, utilize the horizontal holding device of medium of digital printer of the present invention, at paper feed roller by the supply medium, be used for that the medium supplied with to aforementioned paper feed roller sprays that ink droplet prints and the printhead that is located on the pedestal and moves horizontally, the take up roll that the medium that aforementioned printhead is printed is rolled, in the digital printer that the pillar of being located at the bottom surface of aforementioned pedestal and support bearing a heavy burden constitutes, include each medial surface at aforementioned pillar contact symmetrically fixing facial and utilize several the 4th clamping components to be fixedly clamped and form open up and down on, the guiding elements of following bullport; Even make several the 1st clamping components that are embedded in the embedded hole be fixedly clamped in screw hole and form cogged rack-and-pinion gearing in a side, be combined with and carry out the pinion wheel of interlock with aforementioned rack-and-pinion gearing and the also horizontal holding device of medium that simultaneously moves up and down of simultaneously maintenance level always of unequal in addition horizontal force on aforementioned medium at the medial surface of aforementioned guiding elements.

And, be preferably in the side on aforementioned guiding elements top, be formed with the patchhole that is used to embed aforementioned pinion wheel and horizontal holding device.

In addition, the horizontal holding device of aforementioned medium comprises the medium support seat of aforementioned medium being drawn by deadweight and forming hollow bulb in inside, inserts in the hollow bulb that is arranged on aforementioned medium support seat and make turning axle that two the set aforementioned medium support of pinion mate seats of both side ends are rotated simultaneously, Embedded Division inserted the axle fixed body that is provided with and makes turning axle utilize the 1st and the 2nd bearing not have friction and stably be rotated in the both side ends of aforementioned medium support seat.

Inboard at the upper and lower bullport of aforementioned guiding elements is formed with zigzag part, and utilize the 3rd clamping component to be fixedly clamped the bearing guiding elements, and on aforementioned turning axle, be provided with several pilot bearings to contact and to guide moving of the horizontal holding device of aforementioned medium with the aforementioned bearings guiding elements.

And, move for the side that prevents pilot bearing set on aforementioned turning axle, be preferably in the anti-detachment member that the medial surface setting of aforementioned guiding elements utilizes several the 2nd clamp devices to be fixed.

Description of drawings

Figure 1 shows that the stereographic map of the major part of well-known digital printer.

Figure 2 shows that the pie graph of the horizontal holding device of medium of well-known digital printer.

Figure 3 shows that the movement state diagram of the horizontal holding device of well-known medium.

Figure 4 shows that stereographic map with the digital printer that utilizes the horizontal holding device of medium of the present invention.

Figure 5 shows that the exploded perspective view that the horizontal holding device of the medium that utilizes digital printer of the present invention constitutes.

Figure 6 shows that the assembled state figure of the horizontal holding device of medium that utilizes digital printer of the present invention.

Figure 7 shows that constitutional diagram to utilizing the horizontal holding device of medium of the present invention to observe from above.

Figure 8 shows that the constitutional diagram that utilizes the horizontal holding device of medium of the present invention to move.

Symbol description

1: pillar; 3: pedestal;

5: transfer seat; 7: printhead;

9: chuck; 11: paper feed roller;

12: take up roll; 13: main ink cartridge;

14: ink keeping housing; 15: case;

16: the action control panel; 17: the auxiliary ink box;

20: guiding elements; 22: bullport;

24: fixing facial; 26: clamping component;

28: jut is fastened; 30: the medium level keeps rod;

32: guide reel; 40: guiding elements;

42: patchhole portion; 44: zigzag part;

46: the bearing guiding elements; 48: fixing facial;

50: embedded hole; 52: the 1 clamping components;

54: screw hole; 56: the rack-and-pinion gearing;

58: the 2 clamping components; 60: anti-detachment member;

61: bullport; 62: the 3 clamping components;

64: the horizontal holding device of medium; 65: the 4 clamping components;

66: medium is supported seat; 68: the axle fixed body;

70: the hole is fastened; 72: the 1 axle bearings;

74: hollow bulb; 76: Embedded Division;

78: the 2 axle bearings; 80: turning axle;

82: pilot bearing; 84: pinion wheel;

86: axle embeds jut; 88: the axle fixed screw;

A: medium

Embodiment

Below, to utilizing the embodiment that meets expectation of the present invention, at length describe with reference to additional diagram.The present invention by the paper feed roller 11 of supplying with medium, the medium (A) that is used for supplying with to aforementioned paper feed roller 11 sprays ink droplet and prints and be located on the pedestal 3 and digital printer that the pillar 1 of take up roll 12, the bottom surface of being located at aforementioned pedestal 3 and holding load that the printhead 7 that moves horizontally, medium that aforementioned printhead 7 is printed are rolled constitutes, include each medial surface at aforementioned pillar 1 and contact fixing facial 48 and utilize several the 4th clamping components 65 to be fixedly clamped and form the guiding elements 40 of the upper and lower bullport of opening up and down 61 symmetrically; Make several the 1st clamping components 52 of being embedded in the embedded hole 50 clamped fixing and form cogged rack-and-pinion gearing 56 in a side in screw hole 54 at the medial surface of aforementioned guiding elements 40; Carry out the pinion wheel 84 of interlock with aforementioned rack-and-pinion gearing 56 and the also horizontal holding device 64 of medium that simultaneously moves up and down of simultaneously maintenance level always of unequal in addition horizontal force on aforementioned medium (A) even be combined with.

And, be preferably in the side on aforementioned guiding elements 40 tops, be formed with the patchhole portion 42 that is used to embed aforementioned pinion wheel 84 and horizontal holding device 64.

In addition, the horizontal holding device 64 of aforementioned medium comprises the medium support seat 66 of aforementioned medium (A) being drawn and form in inside hollow bulb 74 by deadweight; Be inserted in the hollow bulb 74 that is arranged on aforementioned medium support seat 66 and the turning axle 80 that 84 pairs of aforementioned medium support seats 66 of two set pinion wheels of both side ends are rotated simultaneously; Both side ends at aforementioned medium support seat 66 is inserted Embedded Division 76 the axle fixed body 68 that is provided with and makes turning axle 80 utilize the 1st, the 2nd bearing 72,78 not have friction and stably be rotated.

Aforementioned the 1st bearing 72 is pressed in the hole 70 that is fastened of aforementioned axis fixed body 68 and fixes, and the size of aforementioned the 2nd bearing 78 also can be less than aforementioned the 1st bearing 72.

Inboard at the upper and lower bullport 61 of aforementioned guiding elements 40 is formed with zigzag part 44, and utilize the 3rd clamping component 62 to be fixedly clamped the bearing guiding elements 46, and to contact with aforementioned bearings guiding elements 46 and the form that moves of the horizontal holding device 64 of bootable aforementioned medium and on aforementioned turning axle 80, be provided with several pilot bearings 82.

And, in order to move the side that prevents pilot bearing 82 set on aforementioned turning axle 80, the anti-detachment member 60 that utilizes several the 2nd clamp devices 58 to be fixed the medial surface setting of aforementioned guiding elements 40.

Aforementioned the 1st, the 2nd, the 3rd, the

4th clamping component

52,58,62,65 preferably uses screw, bolt etc.

In addition, the axle that aforementioned turning axle 80 is inserted into aforementioned pinion wheel 84 embeds in the jut 86, and utilizes axle fixed screw 88 to fix.

Below, have a look effect of the present invention and effect with reference to additional diagram.

By the assembled state that utilizes the horizontal holding device of medium of the present invention as can be known, at the medial surface of aforementioned pillar 1, two guiding elements 40 contact with fixing facial 48, and utilize several the 4th clamping components 65 to be fixedly clamped.

And, at the medial surface of aforementioned guiding elements 40, make with rack-and-pinion gearing 56 and contact and be embedded in the 1st clamping component 52 in the embedded hole 50, the clamped screw hole 54 that is fixed on.

Front face at aforementioned guiding elements 40 is formed with the upper and lower bullport 61 that is cut open along the vertical direction, and links the patchhole portion 42 that is formed with in its side.

In addition, be formed with zigzag part 44 and be provided with the bearing guiding elements 46 that utilizes the 2nd clamping component 62 to clamp in the inboard of aforementioned upper and lower bullport 61.

At the opposition side of aforementioned bearings guiding elements 46, be provided with in order to block aforementioned pilot bearing 82 moving and the anti-detachment member 60 that utilizes the 2nd clamping component 58 to fix laterally.

In the both side ends of supporting seat 66 as the medium of the horizontal holding device 64 of aforementioned medium, the Embedded Division 76 of axle fixed body 60 is pressed into and fixes, in the hole 70 that is fastened of aforementioned axis fixed body 60 the 1st bearing 72 is pressed into and fixes, the inboard of portion is pressed into the 2nd bearing 78 and fix endways.

And the terminal part in aforementioned turning axle 80 both sides uses axle fixed screw 88 to make pinion wheel 84 be fixed on axle and embeds on the jut 86.

Between aforementioned pinion wheel 84 and axle fixed body 68, be provided with pilot bearing 82.

On the one hand, the pinion wheel 84 of the horizontal holding device 64 of aforementioned medium and pilot bearing 82 can be inserted into the patchhole portion 42 of aforementioned guiding elements 40 from the side, and are embedded in the upper and lower bullport 61.

Under the state that adopts this formation, medium (A) one side of being supplied with by aforementioned paper feed roller 11 is printed by printing head set on the aforementioned pedestal 37 one sides, and supporting that by the medium of horizontal holding device 64 seat 66 keeps being wound onto on the take up roll 12 under the horizontal state as medium.

On the other hand, when the size of aforementioned medium (A) little, to the right side or the lopsidedness in the left side of the horizontal holding device 64 of medium and carry out as shown in Figure 3, being carried out eccentric the heavy burden on the medium support seat 66 when mobile.

Therefore, although the left side that is applied on aforementioned medium support seat 66 and the heavy burden on right side can produce deviation, and be carried out the power that medium is supported the horizontality of seat 66 of to destroy, because aforementioned two pinion wheels 84 move up and down to utilize turning axle 80 one sides to be rotated one side simultaneously with the state of rack-and-pinion gearing 56 interlocks, so aforementioned medium support seat 66 still always can keep level.

Even that is to say because of aforementioned medium (A) and support on the seat 66 in addition eccentric the heavy burden at aforementioned medium, and the effect that any one pinion wheel 84 on left side or right side is produced excessive power, the outside pinion wheel 84 that the result is located at opposition side because of the effect of turning axle 80 makes also simultaneously similarly one side be rotated one side rack-and-pinion gearing 56 moved up and down, so the horizontal holding device 64 of aforementioned medium also must keep level.

When aforementioned medium (A) carries out when mobile hastily, the horizontal holding device 64 of aforementioned medium is subjected to the tension force of medium (A), moves upward in the upper and lower bullport 61 of guiding elements 40.

And, when the mobile slack-off of aforementioned medium (A) and tension force when being relaxed, horizontal holding device 64 one sides of aforementioned medium move one side downwards in the upper and lower bullport 61 of guiding elements 40 makes the tension force maintenance of medium (A) certain, so medium (A) stably is wound onto on the take up roll 12.

Supporting seat 66 when aforementioned medium carries out up and down based on the variation of the handover speed of medium (A) when mobile, pinion wheel 84 is rotated along rack-and-pinion gearing 56, one side is arranged on turning axle 80 utilization to be fixed in medium to support the 1st bearing 72 in the axle fixed body 68 of both-side ends of seat 66 and the 2nd bearing 78, does not have frictionally to be rotated.

In addition, the pilot bearing 82 that is combined in aforementioned turning axle 80 also can similarly simultaneously move along bearing guiding elements 46, and one side guides the upper and lower of the horizontal holding device 64 of medium to move.

In the side of aforementioned guiding elements 82, have and utilize the 2nd clamping component 58 to be combined in the anti-detachment member 60 of guiding elements 40, prevent that the horizontal holding device 64 of medium breaks away from from the side.

As mentioned above, utilize the horizontal holding device of medium of digital printer of the present invention, be on the medium of supplying with by paper feed roller, print and the constituting of the paper feed roller of reeling in, the turning axle that is connected in both sides is equipped with at hollow bulb for the horizontal holding device of the medium that keeps medium level inboard, and utilize and to be provided with pinion wheel in the both sides of aforementioned turning axle and to be fixed on rack-and-pinion gearing on the guiding elements, when the horizontal holding device of medium carries out up and down when mobile, no matter medium is rolled-up with which kind of state, also always simultaneously maintenance level one side is stably reeled on take up roll, is a kind of very useful and effective invention.

Claims

1. the horizontal holding device of the medium of a digital printer, by the paper feed roller of supplying with medium, the medium that is used for supplying with to aforementioned paper feed roller sprays ink droplet and prints and be located on the pedestal and digital printer that the pillar that bears a heavy burden in take up roll, the bottom surface that is arranged at aforementioned pedestal that the printing head that moves horizontally, medium that aforementioned printing head is printed are rolled and supporting constitutes, it is characterized in that:

Contact fixing facial and utilize several the 4th clamping components to be fixedly clamped and form the guiding elements of the upper and lower bullport of opening up and down symmetrically at each medial surface of aforementioned pillar;

Make to be embedded in the embedded hole several the 1st clamping component is clamped at the medial surface of aforementioned guiding elements to be fixed in the screw hole, and form cogged rack-and-pinion gearing in a side;

Be combined with the pinion wheel that carries out interlock with aforementioned rack-and-pinion gearing, though with horizontal force unequal in addition on aforementioned medium also always simultaneously maintenance level simultaneously move up and down.

2. the horizontal holding device of the medium of digital printer as claimed in claim 1, it is characterized in that: the side on aforementioned guiding elements top is formed with the patchhole that is used to embed aforementioned pinion wheel and horizontal holding device.

3. the horizontal holding device of the medium of digital printer as claimed in claim 1, it is characterized in that: the horizontal holding device of aforementioned medium comprises the medium support seat of aforementioned medium being drawn and form in inside hollow bulb by deadweight, insertion is arranged on aforementioned medium and supports in the hollow bulb of seat, at two set turning axles that the aforementioned medium support of pinion mate seat is rotated simultaneously of both side ends, insert in the both side ends of aforementioned medium support seat and Embedded Division to be set and to make turning axle utilize the 1st, the axle fixed body that the 2nd bearing does not have friction and stably is rotated.

4. the horizontal holding device of the medium of digital printer as claimed in claim 1, it is characterized in that: the inboard at the upper and lower bullport of aforementioned guiding elements is formed with zigzag part, and utilize the 3rd clamping component to be fixedly clamped the bearing guiding elements, and on aforementioned turning axle, be provided with several pilot bearings to contact and to guide moving of the horizontal holding device of aforementioned medium with the aforementioned bearings guiding elements.

5. as the horizontal holding device of medium of claim 1 or 4 described digital printers, it is characterized in that: in order to move the side that prevents pilot bearing set on aforementioned turning axle, the anti-detachment member that utilizes several the 2nd clamp devices to fix the medial surface setting of aforementioned guiding elements.