CN116728531A - Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board - Google Patents

Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board Download PDF

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Publication number
CN116728531A
CN116728531A CN202310927060.7A CN202310927060A CN116728531A CN 116728531 A CN116728531 A CN 116728531A CN 202310927060 A CN202310927060 A CN 202310927060A CN 116728531 A CN116728531 A CN 116728531A
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CN
China
Prior art keywords
control
shaving
wood shavings
gear
sheet
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
Application number
CN202310927060.7A
Other languages
Chinese (zh)
Inventor
苏治
黄加文
王琳
董华平
马德超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Deke New Material Co ltd
Original Assignee
Guangxi Deke New Material Co ltd
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 Guangxi Deke New Material Co ltd filed Critical Guangxi Deke New Material Co ltd
Priority to CN202310927060.7A priority Critical patent/CN116728531A/en
Publication of CN116728531A publication Critical patent/CN116728531A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/02—Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/16—Transporting the material from mat moulding stations to presses; Apparatus specially adapted for transporting the material or component parts therefor, e.g. cauls

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)

Abstract

The invention discloses a production device and a production process of an aldehyde-free light high-strength fine surface fir oriented strand board, wherein the production device comprises a supporting table, a plurality of groups of oriented rolls are arranged on the supporting table, the oriented rolls are rotationally connected with the inner wall of the supporting table, and a conveying belt is arranged on one side of each oriented roll; a pre-orientation mechanism is arranged on one side of the supporting table and comprises a fixing frame, the fixing frame is positioned on one side of the supporting table, a control frame is arranged in the fixing frame in a sliding way, the pre-orientation mechanism is adopted to pre-orient the shaving sheet before the shaving sheet is directionally paved, the wood shavings of the surface layer and the core layer of the blank are easier to control, the oriented surface wood shavings and the oriented core layer wood shavings are mutually vertically staggered, and the strength of the oriented strand board with the multilayer structure is easier to reach the specified requirement.

Description

Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board
Technical Field
The invention belongs to the technical field, and particularly relates to equipment and a process for producing formaldehyde-free light high-strength fine surface fir oriented strand boards.
Background
The particle board is also called a particle board, various branches and buds, small-diameter wood, fast-growing wood, wood dust and the like are cut into fragments with a certain specification, and the fragments are dried, mixed with sizing materials, hardening agents, waterproofing agents and the like, and pressed into an artificial board at a certain temperature and under a certain pressure; the fir core board is a board made from fir after shaving. It features light weight, clear texture, high toughness and not easy deformation. In addition, the board surface of the fir core board is flat, wear-resistant, dampproof, not easy to rot and long in service life.
When the conventional fir oriented strand board is used for orienting the strand board, the orienting degree is limited by virtue of an orienting roller and cannot be controlled, and a plurality of strand boards which are prepared by the blank are not arranged in an ideal direction, so that the strength of the strand board is seriously affected.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide equipment and a process for producing aldehyde-free light high-strength fine surface fir oriented strand boards.
The technical scheme adopted by the invention is as follows:
the device for producing the formaldehyde-free light high-strength fine surface fir oriented strand board comprises a supporting table, wherein a plurality of groups of oriented rollers are arranged on the supporting table, the oriented rollers are rotationally connected with the inner wall of the supporting table, and a conveying belt is arranged on one side of each oriented roller; one side of supporting bench is equipped with the pre-orientation mechanism, the pre-orientation mechanism includes the mount, the mount is located one side of supporting bench, the slip is equipped with the control frame in the mount, the control frame is close to one side of directional roller is equipped with the unloading roller, the both ends of unloading roller are equipped with a backup pad respectively, the unloading roller with the backup pad rotates to be connected, the backup pad with control frame fixed connection.
As the preferable mode of the invention, a special-shaped plate is fixedly arranged on one side of the supporting table, which is close to the fixed frame, a control cylinder is arranged between the fixed frame and the special-shaped plate, a cylinder barrel and a piston rod of the control cylinder are respectively hinged with the fixed frame and the special-shaped plate, the fixed frame is hinged with the special-shaped plate, and the joint of the fixed frame and the special-shaped plate is positioned between the control cylinder and the supporting table; the horizontal height of the hinging point of the control cylinder and the irregular plate is smaller than the horizontal height of the joint point of the fixing frame and the irregular plate.
As the preferable mode of the invention, two ends of the control frame are respectively provided with a sliding plate, one end of each sliding plate, which is close to the control frame, is fixedly provided with a sliding strip, and the control frame is in sliding connection with the sliding strip; the sliding plate is rotatably provided with a control shaft, the control shaft is fixedly provided with a cam, the cam is positioned between the fixing frame and the control frame, one end, close to the fixing frame, of the control frame is fixedly provided with a friction pad, and the cam is in contact with the friction pad.
As a preferable aspect of the present invention, the sliding plate is slidably connected to the control frame, and the sliding direction of the sliding plate along the sliding strip is perpendicular to the sliding direction of the fixing frame along the sliding plate; the utility model discloses a motor vehicle, including fixing frame, rack, control shaft, rack, fixed gear, rack, the both sides of mount are fixed respectively to be equipped with one and settle the box, be equipped with settle the space in settling the box, the fixed rack that is equipped with of side of mount is located settle the space, be equipped with the removal groove on the mount, the removal groove with the sliding plate corresponds, the control shaft runs through the sliding plate, the control shaft is located settle and be equipped with the drive sector gear on the one end in space fixedly, the drive sector gear with the rack meshing.
Preferably, a control motor is arranged on one side of the control shaft, the control motor is fixedly connected with the sliding plate, a driving gear is fixedly arranged on an output shaft of the control motor, an alignment gear is fixedly arranged on the control shaft, the driving gear is meshed with the alignment gear, and the alignment gear is positioned between the driving sector gear and the sliding plate.
Preferably, a driving shaft is fixedly arranged on one side, far away from the control shaft, of the driving sector gear, the driving shaft is rotatably arranged on a connecting plate, a transmission shaft is rotatably arranged on one end, far away from the driving shaft, of the connecting plate, a transmission sector gear is fixedly arranged on one end, far away from the connecting plate, of the transmission shaft, a transmission gear is arranged on one side, far away from the connecting plate, of the transmission sector gear, the transmission gear is fixedly connected with the transmission shaft, a driving gear is arranged on one side of the transmission gear, the driving gear is fixedly connected with the control shaft, the driving gear is positioned between the alignment gear and the sliding plate, and the driving gear is meshed with the transmission gear.
As a preferable mode of the invention, a reserved groove is arranged between the rack and the sliding plate, the driving gear and the transmission gear are positioned in the reserved groove, and the driving sector gear and the transmission sector gear are positioned at one side of the reserved groove far away from the sliding plate; teeth are arranged on two sides of the rack, and the transmission sector gear and the driving sector gear are respectively matched with the teeth on one side of the rack.
As the preferable mode of the invention, one side of the supporting table is fixedly provided with a control box, a driving component is arranged in the control box, and the driving component is used for driving the multiple groups of the orientation rollers to synchronously rotate and is used for driving the conveying belt to rotate; one of them fixed in the backup pad is equipped with the unloading motor, the output shaft of unloading motor passes through the hold-in range driving pulley, the band pulley is fixed to be set up on the unloading roller, the unloading motor is kept away from one side of backup pad is equipped with shelters from the dish, shelter from the dish with backup pad fixed connection.
A process for producing formaldehyde-free light high-strength fine surface fir oriented strand board comprises the following steps:
s1, fir wood shavings; shaving fir by using a ring flaker to obtain shaving flakes, and conveying the shaving flakes to a wet shaving bin for temporary storage;
s2, drying and screening; drying the wet wood shavings by using a contact heating rotary tube bundle dryer until the water content of the wet wood shavings meets the requirement to obtain dry wood shavings, screening the dry wood shavings by using a wood shavings shaking screen to obtain wood shavings large sheets, wood shavings small sheets and fine materials, and respectively conveying the wood shavings large sheets, the wood shavings small sheets and the fine materials to different wood shavings dry storage bins for temporary storage;
s3, adhesive tracing; respectively selecting a certain amount of large wood shavings, small wood shavings and fine materials for glue tracing by metering, wherein the formaldehyde content in the glue does not exceed a specified value;
s4, paving the lower surface layer; firstly spreading a layer of fine materials, and spreading a layer of longitudinal shaving sheets on the fine materials, wherein the longitudinal shaving sheets are shaving large sheets;
s5, paving a core layer; spreading a layer of transverse shaving sheet on the longitudinal shaving sheet, wherein the transverse shaving sheet is a shaving small sheet;
s6, paving an upper surface layer; spreading a layer of longitudinal shaving sheet on the transverse shaving sheet, wherein the longitudinal shaving sheet is also a shaving large sheet, and spreading a layer of fine material on the longitudinal shaving sheet to obtain a blank;
s7, hot press molding; continuously hot-pressing the blank by using a flakeboard hot press to obtain a blank;
s8, trimming; and (5) sequentially carrying out side sawing and cross-sectional sawing on the plain board, and detecting that bubbling does not exist to obtain the shaving board.
As the preferable choice of the invention, in the paving process of the surface layer and the core layer in the steps S4, S5 and S6, the large flake and the small flake of the shavings are respectively and directionally paved by using a formaldehyde-free light high-strength fine surface fir oriented shaving board production device, the shavings slices are firstly and primarily oriented by using a pre-orientation mechanism, and then the shavings slices after the primary orientation are sent to an orientation roller and fall on a conveying belt to finish the oriented paving.
The beneficial effects of the invention are as follows: the invention is used as a production device and a process of formaldehyde-free light high-strength fine surface fir oriented strand board, and the wood shaving sheet is pre-oriented by adopting a pre-orientation mechanism before being oriented and paved, so that the wood shaving sheet directions of the surface layer and the core layer of the blank are easier to control, and the oriented surface layer wood shavings and the oriented core layer wood shavings are mutually vertically staggered, so that the strength of the oriented strand board with a multi-layer structure is easier to meet the specified requirement; the installation positions of the orientation roller and the pre-orientation mechanism can be flexibly adjusted, and the orientation device not only can be used for orienting longitudinal shavings, but also can be used for orienting transverse shavings by changing the installation positions of the orientation roller.
Drawings
The invention will be described in further detail with reference to the accompanying drawings and detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic side elevational view of the FIG. 1 structure of the present invention;
FIG. 3 is a schematic view of the orientation determining mechanism of FIG. 1 according to the present invention;
FIG. 4 is a schematic elevational view of the present invention of FIG. 3;
FIG. 5 is a schematic view of the B-B direction structure of FIG. 4 according to the present invention;
FIG. 6 is an enlarged schematic view of the structure of FIG. 5 at C in accordance with the present invention;
FIG. 7 is a schematic view of the A-A direction structure of FIG. 4 according to the present invention;
FIG. 8 is a schematic view of the internal structure of one of the boxes of FIG. 1 according to the present invention;
fig. 9 is a schematic view of the control shaft structure of fig. 1 according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the invention, i.e., the embodiments described are merely some, but not all, of the embodiments of the invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
The following describes a specific embodiment of the invention with reference to fig. 1-3, which relates to an aldehyde-free light high-strength fine surface fir oriented strand board production device, comprising a supporting table 13, wherein a plurality of groups of oriented rolls 12 are arranged on the supporting table 13, the oriented rolls 12 are rotationally connected with the inner wall of the supporting table 13, and a conveying belt 11 is arranged on one side of the oriented rolls 12; one side of the supporting table 13 is provided with a pre-orientation mechanism, the pre-orientation mechanism comprises a fixing frame 16, the fixing frame 16 is located on one side of the supporting table 13, a control frame 17 is arranged in the fixing frame 16 in a sliding mode, one side of the control frame 17, which is close to the orientation roller 12, is provided with a blanking roller 22, two ends of the blanking roller 22 are respectively provided with a supporting plate 23, the blanking roller 22 is rotatably connected with the supporting plates 23, and the supporting plates 23 are fixedly connected with the control frame 17. Before the wood shavings slice is directionally paved, the wood shavings slice is pre-oriented through a pre-orientation mechanism, so that the wood shavings slice directions of the surface layer and the core layer of the wood shavings blank are easier to control, and meanwhile, the even paving of the wood shavings slice is facilitated, and the paving efficiency and the paving qualification rate are improved greatly; the installation direction and installation position of the orientation rollers 12 and the spacing of the roller sheets on each set of orientation rollers 12 are all adjustable, so that the feeding and discharging speed of the shavings sheets through the orientation rollers 12 is adapted.
Advantageously, a shaped plate 20 is fixedly arranged on one side of the supporting table 13, which is close to the fixed frame 16, a control cylinder 19 is arranged between the fixed frame 16 and the shaped plate 20, a cylinder barrel and a piston rod of the control cylinder 19 are respectively hinged with the fixed frame 16 and the shaped plate 20, the fixed frame 16 is hinged with the shaped plate 20, and a joint of the fixed frame 16 and the shaped plate 20 is positioned between the control cylinder 19 and the supporting table 13; the horizontal height of the hinge point of the control cylinder 19 and the irregular plate 20 is smaller than the horizontal height of the joint point of the fixing frame 16 and the irregular plate 20; the height of both ends of the irregular plate 20 is different, the control cylinder 19 enables the stroke of the fixing frame 16 not to be increased, so that the fixing frame 16 can be pressed down or lifted up near the blanking roller 22, the shavings sheet is conveyed when the fixing frame 16 is pressed down near the blanking roller 22 and stays for a short time, the shavings sheet is continuously conveyed, when the fixing frame 16 is lifted up near the blanking roller 22, a period of operation is fast carried out, the shape of the shavings sheet in the fixing frame is changed, and the condition that enough shavings sheet can be blanked when the fixing frame 16 is pressed down near the blanking roller 22 next time is ensured.
Advantageously, two ends of the control frame 17 are respectively provided with a sliding plate 28, one end of each sliding plate 28 close to the control frame 17 is fixedly provided with a sliding strip 27, and the control frame 17 is in sliding connection with the sliding strip 27; the sliding plate 28 is rotatably provided with a control shaft 25, the control shaft 25 is fixedly provided with a cam 24, the cam 24 is positioned between the fixed frame 16 and the control frame 17, one end of the control frame 17, which is close to the fixed frame 16, is fixedly provided with a friction pad 21, and the cam 24 is in contact with the friction pad 21. The cam 24 makes the fixing frame 16 relatively move (move up and down) relative to the control frame 17, at this time, the fixing frame 16 swings and moves at the same time, the wood shavings sheet has a certain weight after being mixed with glue, and the fixing frame 16 always has a downward movement trend.
Advantageously, the sliding plate 28 is slidingly connected to the control frame 17, and the sliding direction of the sliding plate 28 along the sliding strip 27 is perpendicular to the sliding direction of the fixed frame 16 along the sliding plate 28; the two sides of the fixed frame 16 are respectively fixedly provided with a placement box 15, a placement space 29 is arranged in the placement box 15, racks 31 are fixedly arranged on the side surfaces of the fixed frame 16, the racks 31 are positioned in the placement space 29, the fixed frame 16 is provided with moving grooves 33, the moving grooves 33 correspond to the sliding plates 28, the control shaft 25 penetrates through the sliding plates 28, a driving sector gear 36 is fixedly arranged at one end of the control shaft 25 positioned in the placement space 29, and the driving sector gear 36 is meshed with the racks 31. The driving sector gear 36 is an incomplete gear, and has a meshing effect when a toothed portion thereof contacts with a toothed portion of the rack 31, and has no restraining effect when a non-toothed portion thereof contacts with the rack 31, and can freely move relative to the rack 31, thereby facilitating the resetting of the driving sector gear 36, i.e., the reciprocating movement of the fixing frame 16.
Advantageously, a control motor 41 is disposed on one side of the control shaft 25, the control motor 41 is fixedly connected with the sliding plate 28, a driving gear 40 is fixedly disposed on an output shaft of the control motor 41, an alignment gear is fixedly disposed on the control shaft 25, the driving gear 40 is meshed with the alignment gear, and the alignment gear is located between the driving sector gear 36 and the sliding plate 28. When the fixed frame 16 moves (moves back and forth), the whole sliding plate 28 moves along with the fixed frame, the control motor 41 connected with the sliding plate 28 and the plurality of gear assemblies move together, the control shaft 25 also moves together, but the movement of the control shaft 25 does not affect the rotation of the control shaft, and the cam 24 can still drive the fixed frame 16 to move up and down.
Advantageously, a driving shaft 42 is fixedly arranged on one side of the driving sector gear 36 away from the control shaft 25, the driving shaft 42 is rotatably arranged on the connecting plate 32, a transmission shaft 43 is rotatably arranged at one end of the connecting plate 32 away from the driving shaft 42, a transmission sector gear 34 is fixedly arranged at one end of the transmission shaft 43 away from the connecting plate 32, a transmission gear 35 is arranged on one side of the transmission sector gear 34 away from the connecting plate 32, the transmission gear 35 is fixedly connected with the transmission shaft 43, a driving gear 37 is arranged on one side of the transmission gear 35, the driving gear 37 is fixedly connected with the control shaft 25, the driving gear 37 is positioned between the alignment gear and the sliding plate 28, and the driving gear 37 is meshed with the transmission gear 35.
Advantageously, a reserve slot 30 is provided between the rack 31 and the sliding plate 28, the driving gear 37 and the transmission gear 35 are positioned in the reserve slot 30, and the driving sector gear 36 and the transmission sector gear 34 are positioned on a side of the reserve slot 30 away from the sliding plate 28; teeth are arranged on two sides of the rack 31, and the transmission sector gear 34 and the driving sector gear 36 are respectively matched with the teeth on one side of the rack 31. The toothed portions of the drive sector gear 36 and the transfer sector gear 34 do not simultaneously mesh with the rack 31, and the drive sector gear 36 is engaged with the rack 31 when the transfer sector gear 34 is just disengaged from the rack 31.
Advantageously, a control box 14 is fixedly arranged on one side of the supporting table 13, and a driving assembly is arranged in the control box 14 and is used for driving the multiple groups of the orientation rollers 12 to synchronously rotate and for driving the conveying belt 11 to rotate; one of the support plates 23 is fixedly provided with a blanking motor, an output shaft of the blanking motor is driven by a belt pulley 38 through a synchronous belt 26, the belt pulley 38 is fixedly arranged on the blanking roller 22, one side, away from the support plate 23, of the blanking motor is provided with a shielding plate 18, and the shielding plate 18 is fixedly connected with the support plate 23. The blanking roller 22 is spaced from the opening side of the fixing frame 16 by a certain distance, which is influenced by the size of the shavings, so that the mounting positions of the blanking roller 22 for longitudinal directional pavement and the mounting positions of the blanking roller 22 for transverse directional pavement are different, and the connection position of the supporting plate 23 and the fixing frame 16 can be adjusted by bolts.
A process for producing formaldehyde-free light high-strength fine surface fir oriented strand board comprises the following steps:
s1, fir wood shavings; shaving fir by using a ring flaker to obtain shaving flakes, and conveying the shaving flakes to a wet shaving bin for temporary storage;
s2, drying and screening; drying the wet wood shavings by using a contact heating rotary tube bundle dryer until the water content of the wet wood shavings meets the requirement to obtain dry wood shavings, screening the dry wood shavings by using a wood shavings shaking screen to obtain wood shavings large sheets, wood shavings small sheets and fine materials, and respectively conveying the wood shavings large sheets, the wood shavings small sheets and the fine materials to different wood shavings dry storage bins for temporary storage;
s3, adhesive tracing; respectively selecting a certain amount of large wood shavings, small wood shavings and fine materials for glue tracing by metering, wherein the formaldehyde content in the glue does not exceed a specified value;
s4, paving the lower surface layer; firstly spreading a layer of fine materials, and spreading a layer of longitudinal shaving sheets on the fine materials, wherein the longitudinal shaving sheets are shaving large sheets;
s5, paving a core layer; spreading a layer of transverse shaving sheet on the longitudinal shaving sheet, wherein the transverse shaving sheet is a shaving small sheet;
s6, paving an upper surface layer; spreading a layer of longitudinal shaving sheet on the transverse shaving sheet, wherein the longitudinal shaving sheet is also a shaving large sheet, and spreading a layer of fine material on the longitudinal shaving sheet to obtain a blank;
s7, hot press molding; continuously hot-pressing the blank by using a flakeboard hot press to obtain a blank;
s8, trimming; and (5) sequentially carrying out side sawing and cross-sectional sawing on the plain board, and detecting that bubbling does not exist to obtain the shaving board.
Advantageously, in steps S4, S5 and S6, in the process of laying the surface layer and the core layer, the shavings large sheet and shavings small sheet are respectively laid in an oriented manner by using an aldehyde-free light high-strength fine surface fir oriented strand board production device, the shavings pieces are first oriented by using a pre-orientation mechanism, and then the shavings pieces after the first orientation are sent to the orientation roller 12 and fall on the conveying belt 11 to finish the oriented laying.
The working principle of the invention is as follows:
the invention relates to a production device of an aldehyde-free light high-strength fine surface fir oriented strand board, which at least needs three devices connected in parallel in an operation flow and respectively takes the roles of lower surface layer longitudinal strand orientation and pavement, core layer transverse strand orientation and pavement and upper surface layer longitudinal strand orientation and pavement;
the blanking speed of the pre-orientation mechanism is adapted to the speed of the conveying belt 11, so that the continuous spreading of the shavings is ensured;
different paving sections correspond to different wood shavings and are respectively sent into the control frame 17 by common feeding equipment (belt conveying equipment);
the control motor 41 is started to drive the driving gear 40 to rotate, and the driving gear 40 drives the control shaft 25 to rotate through the alignment gear;
when the control shaft 25 rotates, the cam 24 rotates along with the control shaft 25, and after the cam 24 lifts the control frame 17 to the highest point, the cam 24 always contacts the surface of the cam 24 under the action of the self weight and the weight of the shaving sheet after glue mixing and returns to the lowest point;
the rotation of the control shaft 25 drives the driving sector gear 36 and the driving gear 37 to rotate together, the toothed part of the driving sector gear 36 is meshed with the rack 31 to drive the sliding plate 28 to move, and the sliding bar 27 on the sliding plate 28 drives the control frame 17 to move along with the control frame 17, and at the moment, the control frame 17 moves up and down (reciprocates up and down) and moves back and forth;
the rotation of the driving gear 37 drives the transmission gear 35 to rotate, the transmission gear 35 drives the transmission shaft 43 to rotate, the transmission sector gear 34 rotates along with the transmission shaft 43, the toothed part of the transmission sector gear 34 is meshed with the rack 31 and drives the sliding plate 28 to move reversely, at the moment, the control frame 17 moves up and down to be reciprocating, and simultaneously, the front and back movement is also reciprocating;
the control cylinder 19 is started, the control cylinder 19 periodically controls the extension and contraction of a piston rod of the control cylinder 19, the control cylinder 19 can control the inclination degree of the fixed frame 16, and the side of the fixed frame 16 close to the orientation roller 12 can be downwards inclined or the side of the fixed frame 16 far away from the orientation roller 12 can be downwards inclined (the inclination angle is fine);
each time the side of the fixed frame 16 close to the orientation roller 12 is inclined downward, the control frame 17 slides downward relative to the fixed frame 16, and simultaneously the control frame 17 slides to the side far from the orientation roller 12 relative to the fixed frame 16, and the shavings sheet in the control frame 17 moves to the side close to the orientation roller 12 relative to the control frame 17 under the inertia action (the shavings sheet has a tendency to keep the current state after being thrown up);
the blanking motor is started, the blanking motor drives the belt wheel 38 to rotate through the synchronous belt 26, the blanking roller 22 rotates along with the belt wheel 38, the surface of the blanking roller 22 has a certain degree of roughness, the lowest layer of shavings sheet closest to one side of the orientation roller 12 is pulled out under the rotation of the blanking roller 22 and moves to the upper side of the rolling orientation roller 12 in a parabolic shape, and then the part of the shavings sheet next lower layer contacting the blanking roller 22 is pulled out under the rotation of the blanking roller 22, and the rolling orientation roller 12 orients the shavings sheet continuously pulled out again and then drops on the conveying belt 11 to finish paving;
in the above process, the shavings sheet (the rectangular shape of shavings sheet, the length is far greater than the width of the shavings sheet) closest to one side of the orientation roller 12, if the shavings sheet is transversal or inclined, the portion of the shavings sheet extending out of the control frame 17 is insufficient to contact the blanking roller 22 or the portion of the shavings sheet contacting the blanking roller 22 is smaller, and is insufficient to be pulled out of the blanking roller 22 by friction, the portion of the shavings sheet returns to the control frame 17 when the side of the fixing frame 16 away from the orientation roller 12 is inclined downwards, and the posture of the shavings sheet is adjusted by the control frame 17 moving up and down, moving back and forth, and swinging back and forth, and when the shavings sheet contacts the blanking roller 22 next time, if the contact portion of the shavings sheet contacting the blanking roller 22 is sufficient (the longitudinal probability is longitudinal, or slightly inclined, that the length direction of the shavings sheet is basically consistent with or has a small included angle with the conveying direction of the conveying belt 11) is conveyed to the orientation roller 12 for paving.
It is necessary to explain here that a weight sensor is arranged in the control frame 17, the weight of the shaving sheets in the control frame 17 is periodically detected, and fed back to the material conveying mechanism, so that when the sufficient shaving sheets are arranged in the control frame 17, and the shaving sheets in the control frame 17 are maintained at a certain quantity (weight), the blanking amount caused by the periodic swinging movement of the shaving sheets is ideal, namely, the shaving sheets are matched with the conveying speed of the conveying belt 11 in a controllable range, and the uniform paving of the shaving sheets is satisfied; and the number of shavings in the control frame 17 is sufficiently large, the shavings pulled out in the axial direction of the blanking roller 22 are uniform within a certain time.
In particular, referring to fig. 1, for the oriented strand board production equipment for the aldehyde-free light-weight high-strength fine-surface fir, when the oriented strand board is oriented, the conveying direction of the conveying belt 11 needs to be changed, namely, the relative installation positions of the conveying belt 11, the orientation roller 12 and the supporting table 13 are changed, and only blanks paved on the lower surface layer are conveyed from the axial direction of the orientation roller 12 and pass through the position right below the orientation roller 12; by adjusting the spacing between the multiple sets of orientation rollers 12 and the gaps between the multiple rolling plates of each set of orientation rollers 12, the goal of uniformly dropping shavings on the blank can be achieved.
In addition, if special requirements exist, the pre-orientation mechanism of the invention can also guide the shaving sheet to be obliquely laid into a blank plate so as to meet the appearance requirements.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.

Claims (9)

1. An aldehyde-free light high-strength fine surface fir oriented strand board production device is characterized in that: the device comprises a supporting table, wherein a plurality of groups of orientation rollers are arranged on the supporting table, the orientation rollers are rotationally connected with the inner wall of the supporting table, and a conveying belt is arranged on one side of each orientation roller; one side of supporting bench is equipped with the pre-orientation mechanism, the pre-orientation mechanism includes the mount, the mount is located one side of supporting bench, the slip is equipped with the control frame in the mount, the control frame is close to one side of directional roller is equipped with the unloading roller, the both ends of unloading roller are equipped with a backup pad respectively, the unloading roller with the backup pad rotates to be connected, the backup pad with control frame fixed connection.
2. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claim 1, wherein: a special-shaped plate is fixedly arranged on one side, close to the fixed frame, of the supporting table, a control cylinder is arranged between the fixed frame and the special-shaped plate, a cylinder barrel and a piston rod of the control cylinder are respectively hinged with the fixed frame and the special-shaped plate, the fixed frame is hinged with the special-shaped plate, and the joint of the fixed frame and the special-shaped plate is positioned between the control cylinder and the supporting table; the horizontal height of the hinging point of the control cylinder and the irregular plate is smaller than the horizontal height of the joint point of the fixing frame and the irregular plate.
3. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claim 1, wherein: two ends of the control frame are respectively provided with a sliding plate, one end of each sliding plate, which is close to the control frame, is fixedly provided with a sliding strip, and the control frame is in sliding connection with the sliding strips; the sliding plate is rotatably provided with a control shaft, the control shaft is fixedly provided with a cam, the cam is positioned between the fixing frame and the control frame, one end, close to the fixing frame, of the control frame is fixedly provided with a friction pad, and the cam is in contact with the friction pad.
4. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment according to claim 3, wherein: the sliding plate is in sliding connection with the control frame, and the sliding direction of the sliding plate along the sliding strip is perpendicular to the sliding direction of the fixing frame along the sliding plate; the utility model discloses a motor vehicle, including fixing frame, rack, control shaft, rack, fixed gear, rack, the both sides of mount are fixed respectively to be equipped with one and settle the box, be equipped with settle the space in settling the box, the fixed rack that is equipped with of side of mount is located settle the space, be equipped with the removal groove on the mount, the removal groove with the sliding plate corresponds, the control shaft runs through the sliding plate, the control shaft is located settle and be equipped with the drive sector gear on the one end in space fixedly, the drive sector gear with the rack meshing.
5. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claim 4, wherein: one side of the control shaft is provided with a control motor, the control motor is fixedly connected with the sliding plate, a driving gear is fixedly arranged on an output shaft of the control motor, an alignment gear is fixedly arranged on the control shaft, the driving gear is meshed with the alignment gear, and the alignment gear is positioned between the driving sector gear and the sliding plate.
6. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment according to claim 5, wherein: the drive sector gear is kept away from one side of control axle is fixed to be equipped with the drive shaft, the drive shaft rotates to set up on the connecting plate, the connecting plate is kept away from the one end rotation of drive shaft is equipped with the transmission shaft, the transmission shaft is kept away from the one end of connecting plate is fixed to be equipped with the transmission sector gear, the transmission sector gear is kept away from one side of connecting plate is equipped with drive gear, drive gear with transmission shaft fixed connection, one side of drive gear is equipped with drive gear, drive gear with control axle fixed connection, drive gear is located counterpoint gear with between the sliding plate, drive gear with drive gear meshing.
7. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claim 6, wherein: a reserved groove is formed between the rack and the sliding plate, the driving gear and the transmission gear are positioned in the reserved groove, and the driving sector gear and the transmission sector gear are positioned at one side of the reserved groove far away from the sliding plate; teeth are arranged on two sides of the rack, and the transmission sector gear and the driving sector gear are respectively matched with the teeth on one side of the rack.
8. The formaldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claim 2, wherein: a control box is fixedly arranged on one side of the supporting table, a driving assembly is arranged in the control box, and the driving assembly is used for driving the multiple groups of directional rollers to synchronously rotate and is used for driving the conveying belt to rotate; one of them fixed in the backup pad is equipped with the unloading motor, the output shaft of unloading motor passes through the hold-in range driving pulley, the band pulley is fixed to be set up on the unloading roller, the unloading motor is kept away from one side of backup pad is equipped with shelters from the dish, shelter from the dish with backup pad fixed connection.
9. An aldehyde-free light high-strength fine surface China fir oriented strand board production process, which uses the aldehyde-free light high-strength fine surface China fir oriented strand board production equipment as set forth in claims 1-8. The method is characterized by comprising the following steps of:
s1, fir wood shavings; shaving fir by using a ring flaker to obtain shaving flakes, and conveying the shaving flakes to a wet shaving bin for temporary storage;
s2, drying and screening; drying the wet wood shavings by using a contact heating rotary tube bundle dryer until the water content of the wet wood shavings meets the requirement to obtain dry wood shavings, screening the dry wood shavings by using a wood shavings shaking screen to obtain wood shavings large sheets, wood shavings small sheets and fine materials, and respectively conveying the wood shavings large sheets, the wood shavings small sheets and the fine materials to different wood shavings dry storage bins for temporary storage;
s3, adhesive tracing; respectively selecting a certain amount of large wood shavings, small wood shavings and fine materials for glue tracing by metering, wherein the formaldehyde content in the glue does not exceed a specified value;
s4, paving the lower surface layer; firstly spreading a layer of fine materials, and spreading a layer of longitudinal shaving sheets on the fine materials, wherein the longitudinal shaving sheets are shaving large sheets;
s5, paving a core layer; spreading a layer of transverse shaving sheet on the longitudinal shaving sheet, wherein the transverse shaving sheet is a shaving small sheet;
s6, paving an upper surface layer; spreading a layer of longitudinal shaving sheet on the transverse shaving sheet, wherein the longitudinal shaving sheet is also a shaving large sheet, and spreading a layer of fine material on the longitudinal shaving sheet to obtain a blank;
s7, hot press molding; continuously hot-pressing the blank by using a flakeboard hot press to obtain a blank;
s8, trimming; and (5) sequentially carrying out side sawing and cross-sectional sawing on the plain board, and detecting that bubbling does not exist to obtain the shaving board.
In the steps S4, S5 and S6, in the paving process of the surface layer and the core layer, the large wood shavings sheet and the small wood shavings sheet are respectively and directionally paved by using aldehyde-free light high-strength fine surface fir oriented strand board production equipment, the wood shavings sheet is firstly oriented by using a pre-orientation mechanism, and then the wood shavings sheet after the primary orientation is sent to an orientation roller and falls on a conveying belt to finish the oriented paving.
CN202310927060.7A 2023-07-26 2023-07-26 Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board Pending CN116728531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310927060.7A CN116728531A (en) 2023-07-26 2023-07-26 Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310927060.7A CN116728531A (en) 2023-07-26 2023-07-26 Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board

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Publication Number Publication Date
CN116728531A true CN116728531A (en) 2023-09-12

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Application Number Title Priority Date Filing Date
CN202310927060.7A Pending CN116728531A (en) 2023-07-26 2023-07-26 Production equipment and process for formaldehyde-free light high-strength fine surface fir oriented strand board

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CN (1) CN116728531A (en)

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