CN204917254U

CN204917254U - Stack structure when solid board material is dry

Info

Publication number: CN204917254U
Application number: CN201520666640.6U
Authority: CN
Inventors: 孙耀星; 李成元; 杜洪双; 赵学峰; 齐华春; 温明宇
Original assignee: Beihua University
Current assignee: Beihua University
Priority date: 2015-08-31
Filing date: 2015-08-31
Publication date: 2015-12-30
Anticipated expiration: 2025-08-31

Abstract

The utility model provides a stack structure when solid board material is dry, has a plurality of material heap, and every material heap has a plurality of plywood materials, and at same material in -pile, the seeds of each plywood material thickness the same, panel is the same, and the lower part that the material is piled is the plain -sawed lumber, and the middle part that the material is piled is semifocal chord cutting plate or radius cutting plate, and the upper portion that the material is piled is the quarter -sawed lumber, and the parting bead that a plurality of stripe pitchs equal, thickness is the same is put for every layer to panel, and each layer parting bead quantity within a definite time is the same, the position corresponds each other, and the heavy object has been placed at the top that the material is piled, the crosspiece face that uses the plank material is the reference plane to the tangent line of annual ring line is made to panel broadside central line and annual ring line joining, the contained angle of tangent line and panel broadside be 0-30 for plain -sawed lumber, contained angle be 30-60 for semifocal chord cutting plate or radius cutting plate, contained angle be 60-90 for the quarter -sawed lumber.

Description

Stacking provisions when a kind of solid wood board is dry

Technical field

Stacking provisions when the utility model provides a kind of solid wood board dry.

Background technology

Timber has expand with wet and contract with dry characteristic, and expand with wet and contract with dry is not the gamut occurring in water-cut variation, and only have when the water ratio of timber changes between absolutely dried condition and fibre saturated point state, the expand with wet and contract with dry characteristic of timber just can show.Timber is in dry run, and after water ratio is down to fibre saturated point (being generally about 30%), along with the continuation of water ratio reduces, timber gradually dehydration becomes dry, and will shrink phenomenon.Different from other homogeneous materials (as metal, glass etc.), timber is a kind of Aeolotropic material, when there is expand with wet and contract with dry, there is notable difference in the variable quantity along different directions, longitudinal variable quantity is 0.1-0.3%, radial variable quantity is 3-6%, tangential variable quantity is 6-12%, and it is different that different directions shrinks size, and timber will deform, deflection increases, when next process is planed, the planing amount of timber will increase, and the wood shavings quantity of generation increases, and the volume of timber amount of solid wood reduces, the degree of utilization of timber reduces.In order to reduce the deflection during drying of wood, thus reduce stock left for machining, improve the degree of utilization of timber, researcher has done a lot of research, but on going result concentrates on the development of timber dryer, the adjustment aspect of drying process mostly.

Summary of the invention

The purpose of this utility model be to provide a kind of solid wood board dry time stacking provisions, little by the solid wood board deflection of this method stacking, stock left for machining is few, can improve the degree of utilization of timber.

The technical solution of the utility model is: stacking provisions when a kind of solid wood board is dry, there is several materials heap, each material heap has some laminate materials, it is characterized in that: in same material heap, the seeds of each laminate material thickness that is identical, sheet material is identical, the bottom of material heap is plain-sawed lumber, the middle part of material heap is half plain-sawed lumber or half quarter-sawed lumber, the top of material heap is quarter-sawed lumber, sheet material every layer is placed with the parting bead that some stripe pitch are equal, thickness is identical, the parting bead quantity of each interlayer is identical, position is mutually corresponding, and the top of material heap is placed with weight.

Described plain-sawed lumber is with the crosspiece face of wood plank for reference plane, makes the tangent line of this annual ring line with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 0 ° ~ 30 °, is plain-sawed lumber; Half described plain-sawed lumber is with the crosspiece face of sheet material for reference plane, makes the tangent line of this annual ring line with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 30 ° ~ 60 °, is half plain-sawed lumber; Described quarter-sawed lumber is with the crosspiece face of wood plank for reference plane, makes the tangent line of this annual ring line with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 60 ° ~ 90 °, is quarter-sawed lumber.

The clamp method when solid wood board used in current production is dry is: for plain-sawed lumber, half plain-sawed lumber or half quarter-sawed lumber, quarter-sawed lumber, these different types of sheet materials are not that layering is stacked in same material heap, but put at random, plain-sawed lumber is positioned at the situation that material heap top or quarter-sawed lumber be positioned at material heap bottom and can often occurs, the dry result of sheet material of this disposing way is, the sheet material that deflection is large is many, maximum pressure is born in the bottom that plain-sawed lumber can be made to pile at material by the sheet material of utility model stacking provisions drying, and quarter-sawed lumber bears minimum pressure on the top that material is piled, obviously can reduce the difference of Chordwise shrinkage and radial shrinkage rate, efficiently solve drying of wood deflection large, the problem that cracking phenomena is many, thus planing amount when reducing sheet material following process, compression process surplus, improve the volume recovery of solid wood board, save timber resources.

Accompanying drawing explanation

Fig. 1 be a kind of solid wood board of the utility model dry time stacking provisions schematic diagram;

Fig. 2 is the schematic diagram of plain-sawed lumber transversal surface;

Fig. 3 is the another kind of schematic diagram of plain-sawed lumber transversal surface;

Fig. 4 is the schematic diagram of half plain-sawed lumber transversal surface;

Fig. 5 is the schematic diagram of quarter-sawed lumber transversal surface.

1 weight, 2 quarter-sawed lumbers, 3 half plain-sawed lumbers or half quarter-sawed lumber, 4 plain-sawed lumbers, 5 parting beads, 6 solid wood boards, 7 annual ring lines, 8 broadside center lines, 9 tangent lines in figure.

Detailed description of the invention

Stacking provisions when a kind of solid wood board is dry, there is several materials heap, each material heap has some laminate materials, as shown in Figure 1: in same material heap, the seeds of each laminate material are identical, the thickness of sheet material is identical, the bottom of material heap is plain-sawed lumber 4, the middle part of material heap is half plain-sawed lumber or half quarter-sawed lumber 3, the top of material heap is quarter-sawed lumber 2, it is equal that sheet material every layer is placed with some stripe pitch, the parting bead 5 that thickness is identical, the parting bead quantity of each interlayer is identical, position is mutually corresponding, the top of material heap is placed with weight 1, this weight is sandbox, metal sheet, rubber plate, wooden unit etc.The size in sheet metal thickness direction is less than Width; In the drying loft of dry indoor or outdoors, by said structure, solid wood board is piled into several materials heap.

Be divided into plain-sawed lumber, half plain-sawed lumber or half quarter-sawed lumber, quarter-sawed lumber three class by the solid wood board 6 of log saw, in order to the needs of the drying of wood and Classification Management, sheet material will pile the straight sheet pile of the scale such as not by technical requirements.Stacking provisions of the present utility model, makes that plain-sawed lumber bears maximum pressure and quarter-sawed lumber bears minimum pressure, obviously can reduce the difference of Chordwise shrinkage and radial shrinkage rate, efficiently solve the problem that drying of wood deflection is large, cracking phenomena is many.As shown in Figure 2 and Figure 3: described plain-sawed lumber, being with the crosspiece face of wood plank for reference plane, making the tangent line 9 of this annual ring line with sheet material broadside center line 8 and annual ring line 7 joining, when the angle of tangent line and sheet material broadside is 0 ~ 30 °, is plain-sawed lumber; As shown in Figure 4: half described plain-sawed lumber or half quarter-sawed lumber, for reference plane with the crosspiece face of wood plank, making the tangent line 9 of this annual ring line with sheet material broadside center line 8 and annual ring line 7 joining, when the angle of tangent line and sheet material broadside is 30 ~ 60 °, is half plain-sawed lumber or half quarter-sawed lumber; As shown in Figure 5: described quarter sawing sheet material, being with the crosspiece face of wood plank for reference plane, making the tangent line 9 of this annual ring line with sheet material broadside center line 8 and annual ring line 7 joining, when the angle of tangent line and sheet material broadside is 60 ~ 90 °, is quarter-sawed lumber.

Claims

1. a stacking provisions when solid wood board is dry, there is several materials heap, each material heap has some laminate materials, it is characterized in that: in same material heap, the seeds of each laminate material thickness that is identical, sheet material is identical, the bottom of material heap is plain-sawed lumber, the middle part of material heap is half plain-sawed lumber or half quarter-sawed lumber, the top of material heap is quarter-sawed lumber, sheet material every layer is placed with the parting bead that some stripe pitch are equal, thickness is identical, the parting bead quantity of each interlayer is identical, position is mutually corresponding, and the top of material heap is placed with weight.

2. stacking provisions when a kind of solid wood board according to claim 1 is dry, it is characterized in that: described plain-sawed lumber, for reference plane with the crosspiece face of wood plank, the tangent line of this annual ring line is made with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 0 ° ~ 30 °, it is plain-sawed lumber; Half described plain-sawed lumber is with the crosspiece face of sheet material for reference plane, makes the tangent line of this annual ring line with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 30 ° ~ 60 °, is half plain-sawed lumber; Described quarter-sawed lumber is with the crosspiece face of wood plank for reference plane, makes the tangent line of this annual ring line with sheet material broadside center line and annual ring line line joining, when the angle of tangent line and sheet material broadside is 60 ° ~ 90 °, is quarter-sawed lumber.