DE619589C - Method for producing a winding blank for winding seamless plywood hollow bodies - Google Patents
Method for producing a winding blank for winding seamless plywood hollow bodiesInfo
- Publication number
- DE619589C DE619589C DER87055D DER0087055D DE619589C DE 619589 C DE619589 C DE 619589C DE R87055 D DER87055 D DE R87055D DE R0087055 D DER0087055 D DE R0087055D DE 619589 C DE619589 C DE 619589C
- Authority
- DE
- Germany
- Prior art keywords
- winding
- veneer
- blank
- transverse
- seamless
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
- B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
- B27D1/086—Manufacture of oblong articles, e.g. tubes by spirally winding veneer blanks
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacture Of Wood Veneers (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
Description
Verfahren zum Herstellen eines Wickelzuschnitts für das Wickeln fugenloser Sperrholzhohlkörper Zum- Herstellen von Sperrholzhohlkörpern durch Wickeln wurde bisher der Wickelzuschnitt so gebildet, daß auf den hinteren Teil eines Furniers mit Längsfaserverlauf von etwa dem doppelten Umfang der Wickeltrommel ein Querfurnier von etwa dem einfachen Umfang der Wickeltrommel, beidseitig mit Leimschicht versehen, aufgelegt wurde. Dieses Herstellen des Wickelzuschnitts ist wegen seiner erheblichen Länge (entsprechend ungefähr dem doppelten Umfang der Wickeltrommel) umständlich in der Handhabung und führt auch leicht zu Querrissen im vorlaufenden Teil des Längsfurniers beim Wickeln selbst.Method for producing a winding blank for seamless winding Hollow plywood bodies For the manufacture of hollow plywood bodies by winding so far the wrap blank formed so that on the rear part of a veneer a transverse veneer with a longitudinal fiber course of about twice the circumference of the winding drum of about the simple circumference of the winding drum, provided with a layer of glue on both sides, was launched. This production of the winding blank is significant because of its Length (corresponding to about twice the circumference of the winding drum) cumbersome in handling and also easily leads to transverse tears in the leading part of the longitudinal veneer when winding itself.
Durch das Verfahren zum Herstellen eines Wickelzuschnitts gemäß der Erfindung werdien diese Nachteile vermlleden. Es besteht darin, daß die Längsfurniere von im wesentlichen gleicher Länge wie das dazwischengefügte Querfurnier auf ihrer einen Seite unter Zwischenlage reines Querholzstreifens durch Aufeinanderleimen zu reiner Tasche vereinigt werden, in die ein beiderseits mit Leimschichten versehenes Querfurnier von der offenen Seite her eingeschoben wird, wobei das Ende dies einen Längsfurniers auf der Taschenseite um ein ausreichendes, als Einlauf- und Einspannende auf die Wickeltrommel dienendes Ende vorgerichtet ist.By the method for producing a winding blank according to FIG Invention will avoid these disadvantages. It consists in that the longitudinal veneers of essentially the same length as the intervening transverse veneer on theirs one side with an intermediate layer of pure transverse wood strips by gluing on top of each other be combined into a pure pocket, in which one is provided with layers of glue on both sides Cross veneer is inserted from the open side, with the end this one Longitudinal veneer on the side of the pocket by a sufficient one as an entry and clamping end is prepared on the winding drum serving end.
Die Zeichnung zeigt einen Schnitt durch einten gemäß der Erfindung vorbereiteten Zuschnitt.The drawing shows a section through one according to the invention prepared blank.
Gemäß der Zeichnung wird an ein Längsfurniere das Längsfurniere am vorlaufenden Ende unter Zwischenlage eines schmalen, etwa a bis 5 cm breiten Streifens g mit Querfaserverlauf angeleimt, wodurch eine Tasche, bestehend aus dem Längsfurnier c, dem Längsfurnier a und dem Querstreifen g, gebildet wird. Der Streifen g hat die weitere Wirkung einer Verstärkung des Längsfurniers am vorlaufenden Ende und damit eines Schutzes gegen Rissebildung desselben.According to the drawing, the lengthwise veneer is attached to a lengthwise veneer leading end with a narrow strip about a to 5 cm wide in between g glued with transverse grain, creating a pocket consisting of the longitudinal veneer c, the longitudinal veneer a and the horizontal stripe g. The strip g has the further effect of reinforcing the lengthwise veneer at the leading end and thus a protection against cracking of the same.
In die so gebildet Tasche wird nun das auf beiden Seiten mit Leimschichte versehene Querfurnier b bis dicht an den Querstreifen g eingeschoben.In the pocket formed in this way, glue is now applied on both sides provided transverse veneer b pushed in until close to the transverse stripes g.
Nachdem die Stellen/ der Längsfurniere mit Leim bestrichen sind, ist der Wickelzuschnitt für das Wickeln eines fugenlosen Spierrholzhohlkörpers fertig.After the places / the longitudinal veneer have been coated with glue the winding blank for winding a seamless Spierrholz hollow body is ready.
Es empfirehlt sich, noch einen schmalen Streiften g' mit Querfas;erverlauf auf das hinterie überragende Ende des Längsfurniers a aufzulegen, um .ein Abreißen oder Einreißen dieses überlappenden Endes des Längsfurniers.zu verhindern und um leinen starken Leimpreßdruck am .äußeren Furnierende :ohne Gefahr ausübten zu können.It is advisable to add a narrow strip g 'with a transverse bevel on the protruding end of the lengthwise veneer a to .ein tearing off or tearing of this overlapping end of the longitudinal veneer. to prevent and around Strong glue pressure on the outer end of the veneer: without being able to exert any danger.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER87055D DE619589C (en) | Method for producing a winding blank for winding seamless plywood hollow bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER87055D DE619589C (en) | Method for producing a winding blank for winding seamless plywood hollow bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE619589C true DE619589C (en) | 1935-10-03 |
Family
ID=7417685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER87055D Expired DE619589C (en) | Method for producing a winding blank for winding seamless plywood hollow bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE619589C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE859222C (en) * | 1949-03-29 | 1952-12-11 | I S Interply | Winding machine for the production of tubular bodies by winding up veneer sheets |
-
0
- DE DER87055D patent/DE619589C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE859222C (en) * | 1949-03-29 | 1952-12-11 | I S Interply | Winding machine for the production of tubular bodies by winding up veneer sheets |
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