CN101003200A

CN101003200A - Printer

Info

Publication number: CN101003200A
Application number: CNA2007100021385A
Authority: CN
Inventors: 于尔根·米歇尔斯; 迪特尔·沙夫拉特; 沃尔夫冈·舍恩贝格尔; 伯恩哈德·施瓦布; 米夏埃多·蒂勒曼
Original assignee: Heidelberger Druckmaschinen AG
Current assignee: Heidelberger Druckmaschinen AG
Priority date: 2006-01-17
Filing date: 2007-01-04
Publication date: 2007-07-25
Anticipated expiration: 2027-01-04
Also published as: EP1815983A2; JP5078365B2; DE102006002170A1; JP2007190916A; EP1815983A3; ATE545505T1; CN101003200B; EP1815983B1

Abstract

A printer includes an inking device which includes a roller 3 and a scraper ink box 4 assigned to the roller 3, and the scraper ink box includes an adjustable back wall 8 for adjusting the ink level 15 of the printing ink 14 stored in the scraper ink box 4. The back wall 8 has a diversion contour 9 for mechanically affecting the printing ink 14 in terms of flowing.

Description

Printing machine

Technical field

The present invention relates to a kind of printing machine, has an inking device, this inking device comprises that a roller and configuration give the scraper print cartridge of this roller, and this scraper print cartridge comprises an adjustable rear wall, is used for regulating the printing ink position of the printing-ink that is stored in the scraper print cartridge.

Background technology

At US6,705, such printing machine has been described among the 223B2.This roller is a cable roll and carries out printing-ink transmission from the scraper print cartridge to cable roll in the printing machine of the prior art, and promptly the pitting to cable roll injects printing-ink, and this is in some cases can not be enough even.The oiling China ink of pitting can relevantly with print speed printing speed also can be adversely affected by disturbance turbulent flow that is stored in the printing-ink in the scraper print cartridge and the bubble that forms in printing-ink.

Summary of the invention

Task of the present invention is, provides a kind of and the corresponding printing machine of the beginning described type of part, can guarantee that wherein printing-ink is by the even transmission of scraper print cartridge to roller.

This task solves by printing machine of the present invention.Printing machine according to the present invention has an inking device, this inking device comprises that a roller and configuration give the scraper print cartridge of roller, this scraper print cartridge comprises an adjustable rear wall, be used for regulating the printing ink position of the printing-ink that is stored in the scraper print cartridge, wherein, this rear wall has a water conservancy diversion profile (Stroemungsprofil), and being used for aspect flowing mechanically, (stroemungsmechanisch) influences printing-ink.

The water conservancy diversion profile can under the situation of multi-piece type configuration, be fixed on the rear wall and at the situation compacted under of single-piece configuration on rear wall.Ground related to the present invention, printing-ink also can be understood that gloss varnish, and the inking device also can be understood that glazing device.

The advantage of water conservancy diversion profile is, can improve printing-ink by it and be transferred to uniformity on the roller by the scraper print cartridge.This uniformity is relevant with print speed printing speed no longer consumingly.Influence unfriendly inhomogeneity turbulent flow and bubble in the printing-ink reduce enough degree.If this roller constitutes the cable roll that for example has the net line structure of being made up of pitting, then the printing-ink of net line structure fills, is that so-called pitting fills, and the mechanism aspect flowing by the water conservancy diversion profile becomes all even and is improved.

An additional advantage is, the water conservancy diversion profile can be realized under the situation of non interference side effect at the bottom of to the scraper of scraper print cartridge and box in the mechanism aspect flowing printing-ink.Because the speed that accumulates in the printing-ink of water conservancy diversion profile front holds up power and is derived by rear wall by the water conservancy diversion profile by the hydrodynamic pressure that printing-ink acts on the water conservancy diversion profile.Owing to rear wall and radial type at the bottom of the box, be slide hinged formula or preferably rotate radial type and be connected, the hydrodynamic pressure that bears by rear wall be not delivered at the bottom of the box with scraper that it is fixedlyed connected on.

Another attendant advantages is, can clean this water conservancy diversion profile easily thus when changing printing ink well near this water conservancy diversion profile under the situation that rear wall is removed from roller.

Favourable expanded configuration according to printing machine of the present invention is described in the further technical scheme.

In an expanded configuration, rear wall is supported to such an extent that can optionally move in second place of a primary importance neutralization, in this primary importance or because this primary importance, the printing ink position is positioned at the top of doctor edge of the scraper of scraper print cartridge, in this second place or because this second place, the printing ink position is positioned at the below of doctor edge of the scraper of scraper print cartridge.Doctor edge constitutes the peak of scraper.

In another expanded configuration, rear wall is supported to such an extent that can swing to this primary importance around a turning joint and neutralize in this second place, and this turning joint is arranged on the top at the bottom of the box of scraper print cartridge.

In another expanded configuration, narrow positions of the common formation of the circumferential surface of water conservancy diversion profile and described roller, when rear wall was positioned at primary importance, this narrow positions was in the top of doctor edge.

In another expanded configuration, the water conservancy diversion profile has an exterior angle of determining described narrow positions, and this exterior angle has one greater than 45 ° and less than 135 ° angle.This angle especially can be greater than 60 ° and less than 120 °.Preferably the angle at this exterior angle is about 90 °, promptly is about the right angle.

According to another expanded configuration, the water conservancy diversion profile has an interior angle.This interior angle can have an angle that is at least 90 °.This angle can be about 135 °.

In another expanded configuration, have at least one and be used to guarantee the element that contacts that exists between rear wall and the thin slice.This thin slice is placed in the scraper print cartridge, so that this thin slice covers at the bottom of the box at least.

According to another expanded configuration, described element is a pad, between it is placed at the bottom of the box of thin slice and scraper print cartridge.This pad can be solid pad, for example a plastic mattress.This pad can foam in the case.Thin slice and the available a kind of composite of pad are made one.Also can replace thin slice and pad two-piece type are made, wherein thin slice is placed on the pad in the scraper print cartridge.

According to another expanded configuration, constructed by lamellae is a disposable product that can regularly be abandoned when the cleaning doctor print cartridge.When changing printing ink, will from the scraper print cartridge, take out for the printing-ink that the print job of first face is used, then thin slice is taken out from the scraper print cartridge and abandons with position residual ink thereon.After original new thin slice was inserted in the scraper print cartridge with one, printing-ink that can next print job is required injected the scraper print cartridge.

In another expanded configuration, rear wall has a sliding surface that resembles metallic hard, and rear wall abuts on the thin slice to form contact by it.

In another expanded configuration, the border that hectographic printing printing ink that is made of printing-ink of the common qualification of thin slice and rear wall is laid in, it is stored in the scraper print cartridge.Be stored in the printing-ink high viscosity preferably in the scraper print cartridge.

In another expanded configuration, the face bow at the bottom of the box in the face of thin slice.

According to another expanded configuration, this inking device is that anilox roll (Anilox) inking device and this roller are cable rolls.

By following description to preferred embodiment and accompanying drawing can learn of the present invention other structurally with function on favourable configuration.

Description of drawings

Shown in the accompanying drawing:

Fig. 1 a: a scraper print cartridge, it has an adjustable rear wall that has the water conservancy diversion profile, and this water conservancy diversion profile is adjusted to one from the maintenance position of roller withdrawal,

Fig. 1 b: the adjustable rear wall with water conservancy diversion profile is near the operating position of this roller; And

Fig. 2: by a 3-D view of the scraper print cartridge of seeing later.

The specific embodiment

Printing machine 1 comprises an anilox inking unit 2, and this inking device has a cable roll 3 and a scraper print cartridge 4, and this scraper print cartridge has a print cartridge 5 and a scraper 6.Scraper 6 is fixed on the print cartridge 5 by a clamping device 25 that is configured to quick locker.

Print cartridge 5 comprises a rear wall 8, and this rear wall is fixed on the sidewall 26 of print cartridge 5 by a turning joint 13.7 have a face 23 at the bottom of the box of a shelly of print cartridge 5, and this face circular arc ground bending and its center of curvature are turning joint 13.The highest point in a position of scraper 6 is made of its doctor edge 16, and this doctor edge abuts in printing work on the cable roll 3.

The inside of print cartridge 5 is lined with a thin slice 17, and this thin slice is made up of plastics, for example polyethylene (PE) or PETG (PET).Thin slice 17 can have a repulsion printing-ink, oleophobic and the surface of anti-adhesive thus.The end of thin slice 17 is curved U-shaped basically, and wherein the unci of leading section constitutes a folded group with scraper 6, and this folded group is clamped in the clamping device 25.The rearward end of thin slice 17 also constitutes a hook 19, and in order to keep, this hook is hung in the projection 20 that is arranged on the print cartridge 5.

The rear wall 8 of print cartridge 5, thin slice 17, sidewall 26 and opposed sidewall 26 limit the border of hectographic printing printing ink deposit 14 together, and this printing ink deposit is stored in the scraper print cartridge 4.Certainly also can replace other printing-ink deposit that 14 storages of hectographic printing printing ink deposit have similar high viscosity to hectographic printing printing ink.

Around rotating the swing that hinge 13 carries out towards scraper 16, raise such degree by the printing ink position 15 that hectographic printing printing ink deposit 14 forms, so that this printing ink position 15 is positioned at the top of doctor edge 16 by rear wall 8.Raising after scraper 6 presses on the cable roll 3 for printing work with a negative orientation angle of printing ink position 15 carried out.Rear wall 8 remains on during printing work in the primary importance, and this primary importance is illustrated among Fig. 1 b.The so-called volume of scraper print cartridge 4 (a) is reduced referring to Fig. 1 with respect to the second place of rear wall 8 in this primary importance, so that the hectographic printing printing ink deposit 14 above the scraper 6 can overflow and flow out from scraper print cartridge 4, if the latter is not pressed together on the cable roll 3.Press from cable roll 3 in order to make scraper print cartridge 4, for example in order to change hectographic printing printing ink deposit 14, leave the swing that scraper 6 carries out by rear wall 8 and make printing ink position 15 reduce such degree, so that printing ink position 15 is positioned at the below of doctor edge 16 when rear wall 8 is arranged in the second place.After this reduction of printing ink position 15, hectographic printing printing ink deposit 14 can not flowed out by scraper print cartridge 4 again, if the latter presses from cable roll 3.

Rear wall 8 has a sliding surface 12 on its free end, it slides on thin slice 17 when rear wall 8 swings.This sliding surface 12 is by for example steel or preferred aluminium are made with the identical metal of the other parts of making whole rear wall.Lasting and flexibly contact and in order to guarantee between rear wall 8 and the thin slice 17 for fear of the printing-ink that passes between rear wall 8 and the thin slice 17, be provided with one flexible or the element of spring performance arranged.

This element is a solid pad 22, and it is made of plastic foam, for example PETG foam (PET foam) or ethylene/propylene/diene rubbery foam (EPDM foam) and it is set at the bottom of this thin slice and the box as the liner of thin slice 17 between the face 23 of 7 spill.This solid pad 22 and thin slice 17 can be packed in the scraper print cartridge 4 in succession or can replace and be combined into the sandwich mode and insert en bloc in the scraper print cartridge 4.

Solid pad 22 can be compressed like this, makes it both also when it is in the second place and when it is in any centre position between these two positions thin slice 17 was expressed on the rear wall 8 when rear wall 8 is in the primary importance.The precompressed effect that is applied by solid pad 22 can be in Fig. 1 a and 1b by thin slice 17 and solid pad 22 the little reversible deformation in the zone of sliding surface 12 find out.Sliding surface 12 is pressed in the solid pad 22 a little, wherein the latter and thereon thin slice 17 of position in the zone of sliding surface 12, form one little, after unloading recoverable groove.

Fig. 1 a and 1b express rear wall 8 and have a water conservancy diversion profile 9 towards cable roll 3, on the bottom opposite with turning joint 13 that this water conservancy diversion profile is arranged on rear wall 8.This water conservancy diversion profile 9 has an exterior angle 11, and this exterior angle constitutes the seamed edge vertical with respect to the diagram plane of Fig. 1 a and 1b.This seamed edge can be provided with little fillet or chamfering.The angle [alpha] at exterior angle 11 is roughly a right angle.In addition, this water conservancy diversion profile 9 is the interior angle 21 of β with an angle, and it is an obtuse angle.Exterior angle 11 is between turning joint 13 and interior angle 21.Interior angle 21 is between exterior angle 11 and sliding surface 12.

When rear wall 8 was adjusted on the cable roll 3 (referring to Fig. 1 b) for printing work, exterior angle 11 was zones of the most close cable roll 3 of water conservancy diversion profile 9.Water conservancy diversion profile 9 and exterior angle 11 thereof do not abut on the cable roll 3 in the case, but it closely is positioned at latter next door.Therefore exterior angle 11 constitutes a narrow positions 10 with the circumferential surface of cable roll 3.Rear wall 8 constitutes a printing-ink concubine in the zone of interior angle 21, and this printing-ink concubine is positioned at the below at exterior angle 11.The printing-ink main chamber is positioned at the top at exterior angle 11, and its storage volume is greater than the storage volume of printing-ink concubine.

Fig. 2 illustrates, and a pilot pin 27 is housed on a sidewall 26, and this pilot pin is used for the location of scraper print cartridge 4 with respect to cable roll 3.Pilot pin 27 has a type exterior feature of bone shape basically.On another sidewall 26, be provided with the hinge seat 29 of a hinge pin that stretches out 28 and one and half shellies downwards.That hinge pin 28 is inserted into the machine bogie side frame or be contained in the pan of the member on the machine bogie side frame.For the purpose of clear more, this machine bogie side frame or the member that is contained on the machine bogie side frame do not illustrate in the drawings.Hinge seat 29 is supported among the figure also not shown and be fixed on the hinge pin on the machine bogie side frame, and these four members constitute the turning joint 30 with axis of rotation of vertical geometry thus.

For maintenance purpose, whole scraper print cartridge 4 can promptly be swung in horizontal plane around rotating hinge 30, leaves from cable roll 4.Hinge pin 28 and hinge seat 29 allow by the seat of one's pants by taking out print cartridge 4 in the printing machine 1.In order to take out it, make scraper print cartridge 4 upwards lift this degree, pull out in up to hinge pin 28 by pan.In other words, when the scraper print cartridge takes out from printing machine 1 for maintenance purpose and then scraper print cartridge 4 is packed into again, turning joint 30 make scraper print cartridge 4 can deviate from and hang into.

On a side opposite of scraper print cartridge 4, be provided with a coupler 24, be connected aspect the driving with a servo drive by its rear wall 8 with turning joint 30.This servo drive is not shown in the drawings and can be a Pneumatic working cylinder or a motor, and it comprises a preposition helicoidal gear that has screw rod.This servo drive is connected aspect the driving with rear wall 8 by a lever that does not also illustrate in the drawings, when coupler half one that is placed on this lever cooperates with coupler half one that is arranged on the rear wall 8 and illustrates in the drawings of coupler 24.The coupler of being made up of two coupler half ones 24 is jaw and toothed couplings and arranges coaxially with turning joint 13.Be configured at servo drive that its piston rod is hinged on the described lever under the situation of working cylinder, be configured at servo drive that its preposition helicoidal gear acts on the described lever under the situation of motor.The lever swing that is driven by servo drive moves through coupler 24 and is delivered on the rear wall 8, so that make the latter selectively be adjusted in the primary importance (referring to Fig. 1 b) and be adjusted in the second place (referring to Fig. 1 a).

When the rotation of printing-ink by cable roll 3 when narrow positions 10 is carried, water conservancy diversion profile 9 causes that in the zone of this narrow positions 10 speed of printing-ink holds up power.Because this speed holds up power, the netting twine sunk part of cable roll 3 (pitting or groove) is entrapped air and being filled very equably not to a great extent.

Because described speed holds up power, a masterpiece is used on the rear wall 8, and this power is attempted to force rear wall 8 to leave cable roll 3 and swung in the clockwise direction according to Fig. 1 b around rotating hinge 13 at this.This power outputs on the servo drive by coupler 24 and described lever from rear wall 8, and this servo drive bears described power.Owing to movable be connected (turning joint 13) of rear wall 8 with sidewall 26, this power can not born by sidewall, can't help that they are delivered at the bottom of the box that is fixed on the sidewall 26 on 7 and can't help at the bottom of the box and 7 are delivered to by clamping device 25 and are fixed at the bottom of the box on the scraper 6 on 7, at the bottom of the box that can avoid reliably thus causing 7 by this line of force, the crooked and distortion of clamping device 25 and especially scraper 26, scraper 26 is abutting on the cable roll 3 on the whole printing width equably.

Claims

1. printing machine (1), has an inking device, this inking device comprises that a roller (3) and configuration give the scraper print cartridge (4) of this roller (3), this scraper print cartridge comprises an adjustable rear wall (8), be used for regulating the printing ink position (15) of the printing-ink (14) that is stored in scraper print cartridge (4), it is characterized in that: this rear wall (8) has a water conservancy diversion profile (9), and being used for is mechanically influencing printing-ink (14) aspect flowing.

2. according to the printing machine of claim 1, it is characterized in that: rear wall (8) supports to such an extent that can optionally move to the neutralization of primary importance and move in the second place, printing ink position (15) are positioned at the top of doctor edge (16) of the scraper (6) of scraper print cartridge (4) in this primary importance, and printing ink position (15) are positioned at the below of doctor edge (16) in this second place.

3. according to the printing machine of claim 2, it is characterized in that: rear wall (8) supports to such an extent that can swing to this primary importance around a turning joint (13) and neutralize in this second place, and this turning joint is arranged on the top of (7) at the bottom of the box of scraper print cartridge (4).

4. according to the printing machine of claim 2 or 3, it is characterized in that: water conservancy diversion profile (9) and cable roll (3) constitute a narrow positions (10), and when rear wall (8) when being arranged in primary importance, this narrow positions is positioned at above the doctor edge (16).

5. according to the printing machine of claim 4, it is characterized in that: water conservancy diversion profile (9) has an exterior angle (11) of determining this narrow positions (10), and this exterior angle has one greater than 45 ° and less than 135 ° angle (α).

6. according to the printing machine of claim 5, it is characterized in that: the angle (α) of exterior angle (11) is about 90 °.

7. according to one printing machine in the claim 1 to 6, it is characterized in that: water conservancy diversion profile (9) has an interior angle (21).

8. according to the printing machine of claim 7, it is characterized in that: this interior angle (21) has an angle (β) that is at least 90 °.

9. according to one printing machine in the claim 1 to 8, it is characterized in that: have at least one and be used to guarantee the element that contacts that exists between rear wall (8) and the thin slice (7).

10. according to the printing machine of claim 9, it is characterized in that: this element is a pad (22), and it is arranged at the bottom of the box of thin slice (17) and scraper print cartridge (4) between (7).

11. the printing machine according to claim 10 is characterized in that: thin slice (17) is a disposable product that can regularly abandon when cleaning doctor print cartridge (4).

12. according to one printing machine in the claim 9 to 11, it is characterized in that: rear wall (8) has hard sliding surface (12) as the metal, and by this sliding surface, rear wall (8) abuts in thin slice (17) and goes up to form contact.

13. according to one printing machine in the claim 9 to 12, it is characterized in that: thin slice (17) and rear wall (8) limit the border of the hectographic printing printing ink deposit (14) that is made of printing-ink, and this hectographic printing printing ink deposit is stored in the scraper print cartridge (4).

14. according to one printing machine in the claim 10 to 13, it is characterized in that: (7) are crooked in the face of face (23) the spill ground of thin slice (17) at the bottom of the box.

15. according to one printing machine in the claim 1 to 14, it is characterized in that: this inking device is an anilox inking unit (2), this roller is a cable roll (3).