DE9175C - Innovations to pre-pressure rollers for paper machines - Google Patents
Innovations to pre-pressure rollers for paper machinesInfo
- Publication number
- DE9175C DE9175C DENDAT9175D DE9175DA DE9175C DE 9175 C DE9175 C DE 9175C DE NDAT9175 D DENDAT9175 D DE NDAT9175D DE 9175D A DE9175D A DE 9175DA DE 9175 C DE9175 C DE 9175C
- Authority
- DE
- Germany
- Prior art keywords
- pressure rollers
- innovations
- paper machines
- tube
- pressure roller
- 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.)
- Active
Links
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009950 felting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
- D21F1/46—Dandy rolls
Landscapes
- Cleaning In General (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Making Paper Articles (AREA)
Description
Die bisher existirenden Vordruckwalzen, welche den Zweck haben, bei der Papierfabrikation dem ausgebreiteten Papierstoff das Wasser zu entziehen und das Verfilzen zu beschleunigen, leiden an dem Mangel, dafs sie sich leicht zusetzen und dann schwer reinigen lassen; ferner büfsen sie nach kurzer Zeit des Gebrauchs ihre Stabilität ein und ist es aufserdem mit Schwierigkeiten verknüpft, etwaige Beulen zu entfernen oder sonstige Reparaturen, die stets nothwendig werden, auszuführen.The pre-pressure rollers that have existed so far, which have the purpose of making paper to remove the water from the expanded paper stock and to accelerate the felting process, suffer from the want of being easily clogged and then difficult to clean; further they lose their stability after a short period of use and are also difficult to do so linked to remove any dents or other repairs that are always necessary be executed.
Durch die auf beiliegender Zeichnung dargestellte Construction der Vordruckwalze werden bei möglichster Haltbarkeit derselben die beregten Uebelstände vermieden. Die Vordruckwalze besteht aus einem Rohr α, welches aus. länglich gelochtem Kupfer- oder Messingblech hergestellt ist und an beiden Enden mit durchbrochenen Stirnscheiben b, an welchen die Zapfen i sitzen, durch je drei oder mehr Schraubenbolzen so, wie in Fig. 2 veranschaulicht, verbunden wird. Um dieses Rohr α ist eine Messingdrahtspirale d, Fig. 1, so gewickelt, dafs jede Windung möglichst genau immer einen der herumlaufenden Stege des Kupferrohrs bedeckt, also die Lochungen möglichst in die Zwischenräume der Windungen fallen; sodann wird das ganze Rohr mit der darumgewickelten Spirale verzinnt, wodurch zunächst jede Spiralwindung an ihrem Platze gehalten und ferner die Stabilität des Cylinders noch erhöht wird.The construction of the pre-pressure roller shown in the accompanying drawing, with the greatest possible durability of the same, avoids the inconveniences caused. The pre-pressure roller consists of a tube α, which from. elongated perforated copper or brass sheet is made and is connected at both ends with perforated end disks b, on which the pins i sit, by three or more screw bolts as illustrated in FIG. 2. A brass wire spiral d, FIG. 1, is wound around this tube α in such a way that each turn always covers one of the circumferential webs of the copper tube as precisely as possible, that is, the perforations fall as far as possible into the spaces between the turns; then the whole tube with the spiral wound around it is tinned, whereby each spiral turn is initially held in place and furthermore the stability of the cylinder is further increased.
Ueber den so vorbereiteten Cylinder .wird dann ein feines Messingdrahtgewebe f gezogen, und die Vordruckwalze ist fertig.A fine brass wire mesh f is then drawn over the cylinder prepared in this way, and the pre-pressure roller is ready.
Bei einer nothwendig werdenden Reinigung ist es nicht nöthig, wie bei anderen Vordruckwalzen, dieselbe aus ihren Lagern zu nehmen und aufrecht zu stellen; man läfst einfach durch eine der mit Speichen versehenen Stirnwände hindurch einen Wasserstrahl einspritzen.When cleaning becomes necessary, it is not necessary, as is the case with other pre-pressure rollers, to take it out of its bed and to stand it upright; you just walk through inject a jet of water through one of the spoked end walls.
Wenn etwa Beulen zu beseitigen sind, so hat man nur nöthig, die beiden Stirnwände abzuschrauben, das Gewebe herunterzuziehen und den Cylinder auf einen Dorn zu bringen, um dann in bekannter Weise die Beulen auszuklopfen. If, for example, bumps are to be removed, all that is necessary is the two end walls unscrewing, pulling down the tissue and placing the cylinder on a mandrel, in order to then knock out the bumps in a known manner.
Patenτ-Ansprüche:Patent claims:
1. Die ganze Construction der durch Zeichnung und Beschreibung erläuterten Vordruckwalze. 1. The whole construction of the pre-pressure roller explained by drawing and description.
2. Die Anwendung eines Rohres aus gelochtem Kupfer- oder Messingblech zur Herstellung von Vordruckwalzen in der Weise wie beschrieben und durch Zeichnung erläutert.2. The use of a tube made of perforated copper or brass sheet for manufacture of pre-pressure rollers in the manner as described and explained by drawing.
Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9175C true DE9175C (en) |
Family
ID=286567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT9175D Active DE9175C (en) | Innovations to pre-pressure rollers for paper machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9175C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748422C (en) * | 1941-01-19 | 1951-08-23 | Antonius Kufferath | Form roller for paper machines |
-
0
- DE DENDAT9175D patent/DE9175C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE748422C (en) * | 1941-01-19 | 1951-08-23 | Antonius Kufferath | Form roller for paper machines |
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