CN102602722A

CN102602722A - Suction band table

Info

Publication number: CN102602722A
Application number: CN201110402852XA
Authority: CN
Inventors: H·埃丁格
Original assignee: Heidelberger Druckmaschinen AG
Current assignee: Heidelberger Druckmaschinen AG
Priority date: 2011-01-19
Filing date: 2011-12-07
Publication date: 2012-07-25
Anticipated expiration: 2031-12-07
Also published as: CN102602722B; DE102011120993A1

Abstract

The invention refers to a suction band table, especially to a device used for transferring flake type pages to a page processor, especially to a printer. The device possesses a transferring table which is provided with at least a transferring belt which can be circled for driving and is permeable; the transferring table can be loaded with negative pressure by a plurality of front and back successively arranged suction chambers on the lower side of an upper belt sliding on the transferring table, wherein a last suction chamber arranged on the upstream of a page processing device can supply suction air having different pressure levels with beat of the page processing device. According to the invention, a suction chamber capable of loading different pressure levels is arranged facing the upstream of the last suction chamber on the page processing device.

Description

Inhale the band platform

Technical field

The page or leaf Zhang Liuchuan that the present invention relates to be used for flake type delivers to the device that page or leaf is opened handler, particularly printer; Has transfer station; Said transfer station has at least one can be by around driving and ventilative load-transfer device, and said load-transfer device can be at its downside of on sliding on the said transfer station, be with by the suction chamber of a plurality of front and back arranged in succession loading negative pressure.

Background technology

This device is for example open through DE 10213705A1.Said document discloses a kind of transfer station that is made up of the suction chamber of three front and back arranged in succession; Wherein, First suction chamber can be loaded high negative pressure; Second suction chamber can be loaded lower negative pressure and the 3rd suction chamber can be loaded high negative pressure, wherein, and beat transition back and forth between high negative pressure and lower negative pressure that the negative pressure of the 3rd suction chamber is opened handler with said page or leaf.

The problem that in this transfer station, exists is: page or leaf is opened corresponding second page of stream and is opened in first page of directed stage of opening and rest on the transfer station in the second suction chamber zone with its scale length no longer fully, thereby makes a confining force that is applied to page or leaf and opens reduce.

Summary of the invention

Task of the present invention is, a kind of device is provided, and this device particularly keeps corresponding second page of scale stream to open reliably.

According to the present invention, said task solves through the characteristic of claim 1.

A special advantage of the present invention is can open at per second page or leaf of scale stream targetedly and improve confining force.Through this measure, the positional stability during page or leaf is opened conveying, also additionally improved first page and opened and second page of stalling characteristic of opening.

In favourable configuration, it is inner that additional suction chamber of the present invention is arranged in second suction chamber.At this advantageously, said additional suction chamber and the 3rd suction chamber spacing distance, within this distance, stress level acts on said second page corresponding to the suction air of the constant negative pressure of second suction chamber.

In the favourable configuration of apparatus of the present invention, propose, said additional suction chamber is loaded suction air by beat-type ground, and wherein, said beat has phase shift with respect to the beat of the 3rd suction chamber, particularly about 180 ° phase shift.

For this reason, the rotovalve with two feed paths is set in favourable configuration.

Realize the load especially equably of suction source in the following manner; Promptly; Be provided for producing first suction source of negative pressure for first suction chamber and said additional suction chamber, second suction source is provided for producing the negative pressure of second suction chamber and the 3rd suction source is provided for producing the negative pressure of the 3rd suction chamber.

Description of drawings

Embodiments of the invention shown in the drawings describe below said embodiment.Accompanying drawing illustrates:

Fig. 1 is the schematic cross sectional views that page or leaf is opened rotary press,

Fig. 2 be inhale the band platform schematic cross sectional views and

Fig. 3 a-d opens first page of stream at page or leaf to open and be in the suction band platform in the zone of opening handler towards page or leaf when arriving the feeding device that is provided with.

The specific embodiment

Handling page or leaf opens 7 machine such as printer 1 and has a sheet feeder 2, at least one

printing device

3 or 4 and sheet collectors 6.Page or leaf is opened 7 and is opened from page or leaf to stack 8 and take out, divide single ground or flakey ground to be transported to

printing device

3 and 4 through supplying with platform 9.Said printing device comprises plate cylinder 11,12 in known manner respectively.Plate cylinder 11 and 12 has the device that is used for fixing flexible printing forme respectively.In addition, each plate cylinder 11,12 has all been disposed the device that is used for S. A. or full automaticity replacing forme.

Page or leaf open stack 8 be positioned at controlled up-down the master stack on the plate 10.Page or leaf is opened 7 and is opened from page or leaf by means of so-called suction nozzle 18 and to stack 8 upside and take out, and suction nozzle 18 mainly has and a plurality ofly is used to make page or leaf to open a single lifting in 7 fens and traction aspirators.In addition, be provided with the blowing device that is used to blow loose top ply of paper and be used to follow the tracks of page or leaf and open a detective cell that stacks.Open for directed page or leaf and to stack 8, particularly open 7, be provided with backstop 23,24 a plurality of side direction and the rear portion for orientation this page or leaf stacks 8 upper page.

Supply with platform 9 and be configured to inhale the band platform and have at least one driven around ground, ventilative load-transfer device 26 capable of circulation, said load-transfer device its supplying be directed on platform 9 or the transfer station on can be loaded negative pressure by the

suction chamber

28,29,30 of a plurality of front and back arranged in succession on 27 downside.Propose at this, first suction chamber 28 is supplied with constant high negative pressure by first suction source 31, stacks 8 isolated page or leaf and opens 7 so that keep reliably opening from page or leaf by means of suction nozzle 18.Second suction chamber 29 is supplied to the constant lower negative pressure of second suction source 32.In this zone, page or leaf is placed on the supply platform 9 with opening the stream flakey and therefore covers this supply platform fully, only needs lower negative pressure in order to produce enough confining forces thus.Second suction chamber 29 has special structure in addition, and in said special structure, the less suction chamber 34 that cup 33 opens throughput direction front and back arranged in succession for a plurality of edges page or leaf through at least one pass through openings 36 of difference is supplied with suction airs.

The 3rd suction chamber 30 is arranged in feeding device 44 fronts and loads high negative pressure by the 3rd suction source 37 within a scale length S.Be connected that rotovalve 38 between suction source 37 and the suction chamber 30 is opened with page or leaf that the beat of handler drives and with said high negative pressure beat-type be mixed in the ambient air, thereby make negative pressure transition back and forth between high negative pressure and lower negative pressure in the suction chamber 30.Through this measure, page or leaf open stream corresponding first page open 7.1 can be laterally directed by means of the attitude reference device that is provided with.During corresponding first page 7.1 oriented sideways, the page or leaf in the following scale is opened stream and is transmitted by further.Problem in this appearance is that second page 7.2 bearing surface on second suction chamber 29 diminishes, so the confining force that acts on corresponding second page is too little.In order to help to address this problem, propose, at the 3rd suction chamber 30 disposed the 4th suction chamber 41.Said the 4th suction chamber 41 is arranged in said second suction chamber, 29 inside and has the suction air joint of oneself.Supply with suction air for said the 4th suction chamber 41 by said first suction source 31.Said rotovalve 38 makes the stress level beatization in the 4th suction chamber 41 at this by means of second channel 42, said second channel makes the first passage 43 of the 3rd suction chamber 30 beatizations have phase shift with respect to being used to, particularly with about 180 ° phase shifting.Through this measure, when the 4th suction chamber 41 was supplied to lower negative pressure, the 3rd suction chamber 30 was supplied to high negative pressure, and vice versa.Passage 42,43 is configured with such length respectively at this, promptly about respectively 200 ° machine angle, thus make them in interconnecting gangway, intersect with about 20 °.Through this measure,, rotovalve reaches such state after changeing half-turn, and make two

suction chambers

30 and 41 be provided high negative pressure simultaneously.

When the 4th suction chamber 41 was opened covering by a unique page or leaf fully, the 4th suction chamber always was supplied to high negative pressure.Prevent thus that page or leaf from opening 7.1, the air between 7.2 is through said high negative pressure sucking-off.

But in the present embodiment, the 4th suction chamber 41 be not direct connection on the 3rd suction chamber 30, but keep a small distance a, in said distance, below load-transfer device 26, produce with second suction chamber 29 in the corresponding stress level of pressure.Because in order to realize sufficiently high confining force, at least one that must give said two

suction chambers

30 or 41 loads high suction force, so said length apart from a and said two

suction chambers

30 and 41 is opened throughput direction less than scale length s along page or leaf.Prevent in

suction chamber

30 and 41 zones, below page or leaf is opened, to produce too high negative pressure through the lower negative pressure among the regional a between the 3rd suction chamber 30 and the 4th suction chamber 41.

Fig. 3 a to 3d illustrates page or leaf and opens the flow process of stream when being supplied to page or leaf and opening handler 1.

In Fig. 3 a, open 7.1 for first page and cover the 3rd suction chamber 30, and page or leaf is subsequently opened 7.2 and do not reached the 4th suction chamber 41 as yet.These

suction chambers

30 and 41 all are supplied to high negative pressure.

In Fig. 3 b, open 7.2 for second page and arrived the 4th suction chamber 41.At this constantly, the 3rd suction chamber 30 is provided high negative pressure and the 4th suction chamber 41 is provided lower negative pressure.

In Fig. 3 c, open 7.1 no shows still for first page and be provided for the feeding device 44 opened along the directed page or leaf of page or leaf Zhang Fangxiang, and second page opened 7.2 and cover the 4th suction chamber 41 fully but the 3rd suction chamber 30 of no show still.Said the 3rd suction chamber 30 all is loaded high negative pressure with said the 4th suction chamber 41 in this moment.

In Fig. 3 d, open 7.1 directedly on said feeding device 44 for first page, and second page opened 7.2 and arrived the 3rd suction chamber 30 and partly covered the 3rd suction chamber.At this constantly, give said the 3rd suction chamber 30 supply lower negative pressures or supplying negative voltage and give said the 4th suction chamber 41 supply high negative pressures not.

REFERENCE NUMBER LIST

1 printer

2 sheet feeders

3 printing devices

4 printing devices

6 sheet collectors

Open for 7 pages

7.1 open for first page

7.2 open for second page

Open for 8 pages and stack

9 supply with platform

10 stack plate

11 plate cylinders

12 plate cylinders

18 suction nozzles

23 backstops

24 backstops

26 load-transfer devices

Band (26) on 27

28 first suction chambers

29 second suction chambers

30 the 3rd suction chambers

31 first suction sources

32 second suction sources

33 cups (29)

34 suction chambers (29)

36 pass through openings

37 the 3rd suction sources

38 rotovalves

41 the 4th suction chambers

42 second channels (38)

43 first passages (38)

44 feeding devices

The a distance

S scale length

Claims

1. be used for the page or leaf Zhang Liuchuan of flake type is delivered to the device that page or leaf is opened handler; Has transfer station; Said transfer station has at least one can be by around driving and ventilative load-transfer device; Said load-transfer device can be loaded negative pressure by the suction chamber of a plurality of front and back arranged in succession at its downside of on sliding on the said transfer station, being with; Wherein, can give the different suction air of last suction chamber supply pressure level that is arranged in a said page or leaf handler upper reaches, it is characterized in that with the beat of a said page or leaf handler; At said last suction chamber (30) other suction chamber of disposed (41), can give the said other different suction air of suction chamber supply pressure level with the beat of a said page or leaf handler (1); Said last suction chamber (30) and the suction chamber (41) that is arranged in these last suction chamber upper reaches can load high negative pressure and lower negative pressure by a public rotovalve (38) phase shift ground.

2. device according to claim 1; It is characterized in that said transfer station (9) has first suction chamber (28) that can be loaded constant high negative pressure, second suction chamber (29) that can be loaded constant lower negative pressure, the 3rd suction chamber (30) that can be loaded beat-type high negative pressure and lower negative pressure and is arranged in said the 3rd suction chamber upper reaches and can be loaded the suction chamber (41) of beat-type lower negative pressure and high negative pressure.

3. device according to claim 2; It is characterized in that said rotovalve (38) has the second channel (42) that is used for the first passage (43) that said the 3rd suction chamber (30) is supplied with and is used for the suction chamber (41) that is arranged in said the 3rd suction chamber upper reaches is supplied with.

4. device according to claim 1 is characterized in that, said phase shift is about 180 °.

5. according to the described device of one of claim 2 to 4, it is characterized in that said the 3rd suction chamber (30) and suction chamber (41) the each interval distance (a) that is arranged in the upper reaches are arranged.

6. device according to claim 5 is characterized in that, the part of said second suction chamber (29) is arranged in the said distance (a).

7. according to the described device of one of claim 1 to 6, it is characterized in that the suction chamber (41) that is arranged in the upper reaches is set to and can be loaded suction air by the suction source (31) of said first suction chamber (28).

8. according to the described device of one of aforementioned claim, it is characterized in that the length of said distance (a) and said the 3rd suction chamber (30) and the length that is arranged in the suction chamber (41) at the upper reaches are opened on the throughput direction at page or leaf and observed less than scale length (s).