CN2366809Y - Continuous and contact type drying equipment for single wood plate rolling and softening - Google Patents

Continuous and contact type drying equipment for single wood plate rolling and softening Download PDF

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Publication number
CN2366809Y
CN2366809Y CN 99227261 CN99227261U CN2366809Y CN 2366809 Y CN2366809 Y CN 2366809Y CN 99227261 CN99227261 CN 99227261 CN 99227261 U CN99227261 U CN 99227261U CN 2366809 Y CN2366809 Y CN 2366809Y
Authority
CN
China
Prior art keywords
veneer
softening
adhesive tape
drying
drying equipment
Prior art date
Application number
CN 99227261
Other languages
Chinese (zh)
Inventor
顾炼百
承国义
商庆清
李大纲
Original Assignee
南京林业大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 南京林业大学 filed Critical 南京林业大学
Priority to CN 99227261 priority Critical patent/CN2366809Y/en
Application granted granted Critical
Publication of CN2366809Y publication Critical patent/CN2366809Y/en

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Abstract

The utility model provides a novel veneer drying and processing device for making veneer boards, which solves the problems of big buckling deformation, nonuniform final moisture content, easy damage and big drying energy consumption of a veneer dried by the existing device and is used for quickly and manually processing green lumbers in a large scale. The utility model is characterized in that a conveying rubber belt (7) is driven by a front conveying drive roller (6) and a back conveying drive roller (6). The front part of the conveying rubber belt (7) is provided with one to a plurality of serrate rolling wheels (2) which are distributed in a discontinuous way and are provided with wedge-shaped edges. The upper side and the lower side of the conveying rubber belt (7) are provided with a plurality of pairs of hot press boards (3) and (4) which are provided with heating loops.

Description

Veneer roll extrusion softening and continous way contact drying equipment
The utility model belongs to the wood based panel equipment manufacturing technology in the timber industry.
The growth of artificial fast growing wood such as poplar, paulownia is rapid, and trunk is satisfactorily perfectly straight, is the good material of making glued board.But after the veneer drying that is peeled into poplar etc., big, the whole moisture content of buckling deformation is inhomogeneous, and cracky.Again because of fast growing wood green moisture contents such as willow are very high, energy consumption is big when dry, has influenced the production of these fast growing wood glued boards and promotes the use of.
Rotary cut venner drying process both domestic and external is all made thermal source with steam, the drying means that adopts Convective Heating, guipure to transmit, the baking temperature and the thermal efficiency are difficult to increase substantially, and drying time is long, productivity ratio is low, and the veneer buckling deformation that drying goes out is serious, and breakage rate is very high.
Purpose of design of the present utility model is that big, the whole moisture content of buckling deformation is inhomogeneous after solving the existing equipment veneer drying, the deficiency that cracky and energy consumption for drying are big is utilized artificial fast growing wood for large-scale processing a kind of novel glued board manufacturing veneer drying treatment facility is provided.
The technical solution that the utility model adopted is: driven by two feed drive rollers of head and the tail (6) and carry adhesive tape (7), carry the front portion of adhesive tape (7) to be provided with one to several rollers (2), veneer (1) passes through under roller (2) when advancing on carrying adhesive tape (7); In the process that veneer continues to carry forward, by be contained in carry adhesive tape (7) upper and lower surface, band heating oil return line some to heating platen (3), that (4) carry out the type of respiration pressurization to veneer (1) is dry.For prevent roller when the softening with the veneer pressure break, the profile of tooth of roller is one to be discontinuously arranged wedge shape cutting edge.
The description of the drawings:
Fig. 1 is the integral layout schematic diagram of veneer roll extrusion softening and continous way contact drying equipment.Among the figure, (1) is veneer, and (2) are the softening roller, (3) be the upper hot pressboard of band heating oil return line, (4) are the lower hot pressing board of band heating oil return line, and (5) are pressurization, lifting hydraulic jack, (6) be the feed drive roller, (7) for carrying adhesive tape, (8) are for carrying the adhesive tape backing roll.
Fig. 2 is a softening roller profile of tooth profile.R among the figure is the radius of roller, and R1, R2 are the tooth root knuckle radius of roller, and H is a tooth depth, and h is a milling depth, and m is a space width, and α is the gear hobbing relief angle.
Fig. 3 is a softening roll extrusion indentation partial schematic diagram.L among the figure is an indentation length, and 1 is the lap of indentation.
Exemplary embodiments:
The spacing of two feed drive rollers of head and the tail (6) is 12500mm, drives to carry the wide 1400mm of adhesive tape (7), carries the front portion of adhesive tape (7) to be provided with two rollers (2), carries adhesive tape (7) upper and lower surface to be provided with heating platen (3), (4) of two pairs of band heating oil return lines.Carry the pace of adhesive tape (7) to be controlled at about 5m/min.
The roller tooth shape parameter is as follows:
Roller radius R=150mm
Roller tooth root knuckle radius R1=1mm
Roller tooth root knuckle radius R2=3mm
Tooth depth H=5mm
Milling depth h=3mm
Space width m=5mm
Gear hobbing relief angle α=27 °
Indentation length (tooth is long) L=120mm
Lap 1=20mm
Veneer after the rotary-cut (1) is gone up stepping at the conveying adhesive tape (7) that is driven by feed drive roller (6), sends into after roller (2) softening in the upper and lower heating platen of being with the heating oil return line and heats.Upper hot pressboard (3) is done 15~60 seconds/time respiratory movement under the driving of pressurization, lifting hydraulic jack (5); The surface temperature control of heating platen is about 180~200 ℃.Thereby the roll extrusion softening and the continous way contact drying of veneer have been realized.
The dry processing technology that adopts the utility model to carry out the fast growing wood veneer has the advantage of following several respects:
1. the veneer pilled-in selvedge is carried out soften handled under the special cutting edge roll extrusion of roller, has eliminated answering in the veneer Power;
2. veneer contacts heat drying under the clamping of hot pressing flat board, and the thermal efficiency improves greatly;
3. utilize high temperature heat conductive oil to make heating carrier, compare, can improve baking temperature (improving more than 50 ℃) significantly, met or exceeded the glassy transition point of lignin in the timber, make veneer plasticizing, deliquescing than steam drying with traditional Steam Heating.The heat energy utilization rate also is significantly improved.
Therefore, adopt the utility model carry out fast growing wood glued board in producing the rotary cut venner drying process, big, the whole moisture content of buckling deformation is inhomogeneous after preferably resolving the existing equipment veneer drying, the deficiency that cracky and energy consumption for drying are big is utilized artificial fast growing wood for large-scale processing a kind of more satisfactory glued board manufacturing veneer drying treatment facility is provided.

Claims (2)

1. veneer roll extrusion softening and continous way contact drying equipment, it is characterized in that driving conveying adhesive tape (7) with two feed drive rollers of head and the tail (6), carry the front portion of adhesive tape (7) to be provided with one, carrying adhesive tape (7) upper and lower surface to be provided with some heating platen (3), (4) band heating oil return line to several rollers (2).
2. veneer roll extrusion softening as claimed in claim 1 and continous way contact drying equipment, it is characterized in that carrying the anterior set roller (2) of adhesive tape (7), its profile of tooth is one to be discontinuously arranged wedge shape cutting edge.
CN 99227261 1999-02-05 1999-02-05 Continuous and contact type drying equipment for single wood plate rolling and softening CN2366809Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 99227261 CN2366809Y (en) 1999-02-05 1999-02-05 Continuous and contact type drying equipment for single wood plate rolling and softening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 99227261 CN2366809Y (en) 1999-02-05 1999-02-05 Continuous and contact type drying equipment for single wood plate rolling and softening

Publications (1)

Publication Number Publication Date
CN2366809Y true CN2366809Y (en) 2000-03-01

Family

ID=34016804

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 99227261 CN2366809Y (en) 1999-02-05 1999-02-05 Continuous and contact type drying equipment for single wood plate rolling and softening

Country Status (1)

Country Link
CN (1) CN2366809Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101443617B (en) * 2006-05-15 2011-11-23 赫尔辛基理工大学 Method and apparatus for contact drying of rotary-peeled or cut wood veneers
CN104215035A (en) * 2014-08-22 2014-12-17 浙江万江木业有限公司 Mesh belt type veneer drier
CN105583920A (en) * 2016-03-10 2016-05-18 广西南宁侨盛木业有限责任公司 Integrated device capable of achieving rolling, heating, drying, positioning and leveling sizing synchronously during plate conveying

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101443617B (en) * 2006-05-15 2011-11-23 赫尔辛基理工大学 Method and apparatus for contact drying of rotary-peeled or cut wood veneers
CN104215035A (en) * 2014-08-22 2014-12-17 浙江万江木业有限公司 Mesh belt type veneer drier
CN105583920A (en) * 2016-03-10 2016-05-18 广西南宁侨盛木业有限责任公司 Integrated device capable of achieving rolling, heating, drying, positioning and leveling sizing synchronously during plate conveying

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