CN115923334A - Device for sucking out powder in a delivery of a printing press - Google Patents
Device for sucking out powder in a delivery of a printing press Download PDFInfo
- Publication number
- CN115923334A CN115923334A CN202210954819.6A CN202210954819A CN115923334A CN 115923334 A CN115923334 A CN 115923334A CN 202210954819 A CN202210954819 A CN 202210954819A CN 115923334 A CN115923334 A CN 115923334A
- Authority
- CN
- China
- Prior art keywords
- printing press
- delivery
- sheet
- powder
- guide element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
- B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
- B41F23/06—Powdering devices, e.g. for preventing set-off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F22/00—Means preventing smudging of machine parts or printed articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
- B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
- B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2235/00—Cleaning
- B41P2235/10—Cleaning characterised by the methods or devices
- B41P2235/27—Suction devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/53—Auxiliary process performed during handling process for acting on performance of handling machine
- B65H2301/531—Cleaning parts of handling machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/10—Means using fluid made only for exhausting gaseous medium
- B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/20—Avoiding or preventing undesirable effects
- B65H2601/26—Damages to handling machine
- B65H2601/261—Clogging
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pile Receivers (AREA)
Abstract
In a device for sucking out powder in a delivery of a printing press, a stack of sheets (1) is arranged between suction chambers (4). A guide element for air (3) associated with the suction chamber (4) is arranged to be adjustable according to the width of the sheet stack (1). The guide element may be a flipper (5).
Description
Technical Field
The invention relates to a device for sucking out powder in a delivery of a printing press, wherein a stack of sheets is arranged between suction chambers.
Background
DE 10 2004 007 403 A1 describes a device for suctioning powder, in which a suction chamber arranged on a side wall of a delivery can be adjusted together with the side wall. The sheet format is not critical when adjusting. Instead, a better accessibility into the interior of the delivery is aimed at.
Disclosure of Invention
The object of the invention is to provide a device for sucking out powder, in which stray powder is reduced.
This object is achieved by a device for suctioning powder in a sheet feeder of a printing press, wherein a sheet stack is arranged between suction chambers, characterized in that a guide element for air associated with the suction chambers is arranged to be adjustable according to the width of the sheet stack.
One advantage of the invention is that stray powder can be avoided by the device even when smaller sheet formats are processed. In this case, the sheet stack is narrow and nevertheless a large gap between the sheet stack and the suction chamber is avoided, through which gap the powder-laden air would otherwise flow downward and contaminate the machine.
Various developments are possible.
The guide element may be a flipper.
But the guide element may also be a glide.
A guide element (e.g., flipper or glide) may be coupled to the jogger.
Drawings
Further developments emerge from the following description of embodiments and the figures, in which:
FIG. 1 shows an embodiment with a powder air guide tumbler; and
fig. 2 shows an embodiment with a powder air guide glide.
Detailed Description
Fig. 1 shows a delivery of a printing press in which printed sheets are powdered after printing and then placed on a sheet stack 1. This placement is supported by a blowing device 2 which blows air from above in the direction of the sheet stack 1. The air discharged from the blowing device 2 swirls the powder and flows toward the side surface while being mixed with the powder.
For disposal of the powder-laden air 3, two suction chambers 4 are present, between which the sheet stack 1 is arranged. These suction chambers 4 are each open toward the sheet stack 1 and/or downward, for example, are provided with corresponding suction openings.
Depending on the size of the sheet format to be processed in each case, the sheet stack 1 can be narrower or wider. In the case of narrow sheet stacks 1, the distance between the sheet 1 and the respective suction chamber 4 is so great that there is a risk of air 3 flowing out of the upper side of the sheet stack 1 flowing down through the suction chamber 4.
In order to eliminate this risk, each aspiration chamber 4 is assigned a turning part 5, against which the air 3 impinges and is thereby deflected towards the aspiration chamber 4. As indicated by the arrows in the drawing, the reversing element 5 can be pivoted into different positions, which are adapted to the width of the sheet stack 1.
In each sheet format, the distance between the free end of the reversing element 5 and the side of the sheet stack 1 is approximately the same. This is ensured by a control device which controls one or more drives which oscillate the tilting element 5.
Fig. 2 shows a variant in which the turner 5 is replaced by a slide 6, which, like the turner 5, acts as a guide element for the air 3. Furthermore, the slide 6 can also be adjusted to the sheet format as described with reference to the reversing element 5.
The reversing element 5 or the glide 6 may be mechanically or controllably coupled to the jogger 7 so that the reversing element 5 or the glide 6 together with the jogger 7 may be adjusted to the respective sheet format, as is shown in fig. 2 for example with the glide 6.
In fig. 1 and 2, the direction of transport of the sheet in the printing press is orthogonal to the plane of the drawing. I.e. the aspiration chamber 4 and the guide elements (flipper 5, glide 6) are arranged to the right and left with respect to the conveying direction.
List of reference numerals:
1. sheet stack
2. Blowing device
3. Air (a)
4. Suction chamber
5. Turnover part
6. Sliding part
7. A jogger.
Claims (4)
1. A device for suctioning powder in a sheet feeder of a printing press, wherein a sheet stack (1) is arranged between suction chambers (4), characterized in that a guide element for air (3) associated with the suction chambers (4) is arranged to be adjustable according to the width of the sheet stack (1).
2. Device according to claim 1, characterized in that the guide element is a flipper (5).
3. Device according to claim 1, characterized in that the guide element is a glide (6).
4. A device according to any one of claims 1-3, characterized in that the guide element is coupled with a jogger (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021124469 | 2021-09-22 | ||
| DE102021124469.2 | 2021-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115923334A true CN115923334A (en) | 2023-04-07 |
Family
ID=85384060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210954819.6A Pending CN115923334A (en) | 2021-09-22 | 2022-08-10 | Device for sucking out powder in a delivery of a printing press |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115923334A (en) |
| DE (1) | DE102022119446A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004007403A1 (en) | 2003-03-06 | 2004-09-16 | Heidelberger Druckmaschinen Ag | Sheet feeder for printing machine has adjustable side walls with integral pressure chambers to improve access |
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2022
- 2022-08-03 DE DE102022119446.9A patent/DE102022119446A1/en active Pending
- 2022-08-10 CN CN202210954819.6A patent/CN115923334A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022119446A1 (en) | 2023-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |