CN116238015A - One-step forming continuous hot-pressing thin plywood production line and production method - Google Patents

One-step forming continuous hot-pressing thin plywood production line and production method Download PDF

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Publication number
CN116238015A
CN116238015A CN202310027330.9A CN202310027330A CN116238015A CN 116238015 A CN116238015 A CN 116238015A CN 202310027330 A CN202310027330 A CN 202310027330A CN 116238015 A CN116238015 A CN 116238015A
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China
Prior art keywords
section
slab
continuous
conveying
splicing
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CN202310027330.9A
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Chinese (zh)
Inventor
杜官本
董春雷
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Southwest Forestry University
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Southwest Forestry University
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Priority to CN202310027330.9A priority Critical patent/CN116238015A/en
Publication of CN116238015A publication Critical patent/CN116238015A/en
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    • 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
    • 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
    • B27D1/083—Presses specially designed for making the manufacture of shaped plywood articles
    • 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
    • B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G11/00—Applying adhesives or glue to surfaces of wood to be joined
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The invention provides a one-step forming continuous hot-pressing thin plywood production line and a production method, which relate to the technical field of plywood production lines and comprise the following steps: the continuous splicing device of slab, rubber coating device, group's base device, hot press and conveyor that lay in proper order along production line extending direction, continuous splicing device of slab is provided with a plurality ofly, and continuous splicing device of a plurality of slabs lays from top to bottom in proper order, continuous splicing device of slab is used for splice the veneer into the slab, rubber coating device is used for carrying out the rubber coating to the upper surface of slab, group's base device is used for receiving the slab after the rubber coating and makes a plurality of slabs stack from top to bottom, the hot press is used for carrying out hot pressing to the shaping slab of stacking from top to bottom, conveyor is used for carrying the finished plywood after the hot pressing to the finished product district. The proposal provided by the invention can enrich the specification of the plywood product, improve the production efficiency of the plywood, continuously produce the plywood with infinite length, and cut according to the required length.

Description

One-step forming continuous hot-pressing thin plywood production line and production method
Technical Field
The invention relates to the technical field of plywood production lines, in particular to a one-step forming continuous hot-pressing thin plywood production line and a production method.
Background
Plywood is the most important artificial board product in the world artificial board industry, about 70% of the world plywood is produced by China enterprises, and meanwhile, the plywood is also the most important artificial board variety in China and accounts for about 60% of the artificial board market in China. However, in the world, the plywood enterprise is a labor-intensive enterprise, especially a veneer assembly and slab stacking link, the production efficiency of manual work is low and the product quality is not easy to control basically by relying on manual work, meanwhile, the production of the plywood is a discontinuous process, especially comprises a separated static pre-pressing procedure, so that the production efficiency is further reduced, the discontinuous production process also causes the defects of core stacking, seam separating and the like in the slab conveying process, and in addition, the width specification of the traditional plywood product is single and is difficult to meet the increasing diversified demands.
Based on this, a new production line is urgently needed to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a one-step forming continuous hot-pressing thin type plywood production line and a production method thereof, which are used for solving the problems in the prior art, improving the production quality and the production efficiency of the plywood and realizing continuous production.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a one-step forming continuous hot-pressing thin plywood production line, which comprises the following steps: the continuous slab splicing device is provided with a plurality of continuous slab splicing devices, the continuous slab splicing devices are sequentially arranged from top to bottom, the continuous slab splicing devices are used for splicing veneers into slabs, the gluing devices are used for gluing the upper surfaces of the slabs, the slab splicing devices are used for receiving the slabs after gluing and enabling the slabs to be stacked up and down, the hot press is used for hot pressing formed slabs stacked up and down, and the conveying device is used for conveying finished plywood after hot pressing to a finished product area.
Preferably, the slab continuous splicing device comprises two types, one is a longitudinal splicing device and the other is a transverse splicing device;
the longitudinal splicing device can splice the single boards into a continuous single board serial group along the longitudinal direction of the single boards, and can splice the single board serial group along the transverse direction of the single boards to form the continuous slab;
the transverse splicing device splices the single boards into a continuous single board serial group along the transverse direction of the single boards, and can splice the single board serial group along the longitudinal direction of the single boards to form the continuous slab; or the transverse splicing device is directly spliced into the slab along the transverse direction of the veneer;
the longitudinal splicing device and the transverse splicing device are arranged in a crossing way;
the width of the veneer is 1.25-1.30 m, the length is 2.5m, and the thickness is 1.2-2.2 mm.
Preferably, the longitudinal splicing device splices the single boards into a single board serial group along the longitudinal direction of the single boards by using a single board splicing mechanism;
the longitudinal splicing device utilizes a single board serial group splicing mechanism to splice the single board serial group transversely along a single board for a plurality of stages to form the slab;
the transverse splicing device splices the single boards into a single board string or a plate blank along the transverse direction of the single boards by utilizing a single board splicing mechanism;
the transverse splicing device longitudinally splices the single board strings to form the slab by a plurality of stages by utilizing a single board string splicing mechanism;
the veneer splicing mechanism comprises a first alignment baffle, a first front section conveying roller way, a first rear section conveying roller way and a first bonding device, wherein the first alignment baffle extends along a first straight line and is fixedly arranged, and the first front section conveying roller way is arranged on one side of the first alignment baffle and is connected with the first rear section conveying roller way in a front-back mode;
the conveying direction of the first front section conveying roller way is inclined towards the first alignment baffle;
the first rear-section conveying roller way is used for conveying the single plate backwards along the first straight line;
the first front-section roller in the first front-section conveying roller way and the first rear-section roller in the first rear-section conveying roller way are both speed-adjustable rollers;
the first bonding device is used for bonding and fixing two adjacent veneers which are aligned front and back and are mutually butted to form a veneer serial group which is connected in sequence;
the veneer serial group splicing mechanism comprises a second alignment baffle, two second front section conveying roller tables, a second rear section conveying roller table and a second bonding device, wherein the second alignment baffle extends along a first straight line and is fixedly arranged, the two second front section conveying roller tables are respectively arranged on two sides of the second alignment baffle, and the second front section conveying roller tables and the second rear section conveying roller tables are connected front and back;
the conveying directions of the two second front-section conveying roller tables are inclined towards the second alignment baffle plates;
the second rear-section conveying roller way is used for conveying the single board serial group backwards along the first straight line;
the second bonding device is used for bonding and fixing two adjacent veneer strings which are aligned left and right and are mutually butted.
Preferably, the coating device adopts spray coating or spraying, and only coats or sprays the upper surfaces of the layers of slabs below the first layer of slab, wherein the coating amount is 300g/m 2 。
Preferably, the hot press is a flat press continuous hot press.
Preferably, the assembling device is provided with a receiving and conveying surface, the receiving and conveying surface is used for receiving the slabs conveyed from the gluing device, the slabs are sequentially stacked on the receiving and conveying surface, and the receiving and conveying surface is also used for conveying the stacked slabs into the hot press for hot pressing.
Preferably, the assembly device further comprises side guide pieces, wherein one side guide piece is arranged on each of the left side and the right side of the receiving conveying surface, each side guide piece comprises a side guide piece front section and a side guide piece rear section which are sequentially arranged along the extending direction of the receiving conveying surface, the distance between the two side guide piece front sections is gradually narrowed along the extending direction of the receiving conveying surface until the two side guide pieces front sections are connected to the side guide piece rear sections, and the distance between the two side guide piece rear sections is always consistent and only 1-2 cm wider than the width of the slab;
the side guide piece is used for leveling a plurality of slabs in the conveying process, and can be a side guide plate or a side roller group, and the side roller group comprises a plurality of rollers which extend along the slab conveying direction.
Preferably, the first front-section conveying roller way comprises a plurality of first front-section rollers, each first front-section roller is sequentially arranged along the extending direction of the first alignment baffle, and the first front-section rollers gradually approach the first rear-section conveying roller way from one end close to the first alignment baffle to the other end;
the first back section rollgang comprises first back section rollers which are arranged in pairs up and down, the single board passes through the upper back section roller and the lower back section roller, and the upper back section roller and the lower back section roller are opposite in rotation direction and can be tightly attached to the surface of the single board.
Preferably, the first bonding device comprises a first adhesive tape roller set and a first up-down driving device, the first adhesive tape roller set comprises two first adhesive tape rollers which are arranged up and down oppositely, the first adhesive tape rollers are arranged between two adjacent first rear-section rollers, the first up-down driving device is used for driving the first adhesive tape rollers to be close to each other until being respectively attached to the upper surface and the lower surface of the veneer, the first adhesive tape rollers attached to the veneer can release adhesive tape and bond and fix the two adjacent veneers which are aligned front and back and are mutually butted to form a veneer string group which is connected in sequence.
Preferably, the slab continuous splicing device further comprises a photoelectric position and speed detector, wherein the photoelectric position and speed detector is used for detecting the position and speed of each single plate and transmitting the detected position and speed to a control system, and the control system coordinates and controls the speeds of each first front section roller and each first rear section roller according to the position relation and speed between the single plates so as to achieve the purpose of front-rear butt joint of the front single plates and the rear single plates.
The invention also provides a production method of the thin plywood, which is produced by using the one-step molding continuous hot-pressing thin plywood production line;
wherein, the thin plywood is formed by stacking 3 layers or 5 layers of plywood blanks, and the thickness is 2.1-11.0 mm.
Compared with the prior art, the invention has the following technical effects:
the production line and the production method of the one-step formed continuous hot-pressing thin plywood are suitable for producing thin plywood, a slab continuous splicing device continuously produces slabs, the slabs are produced and are conveyed to a assembling device to be stacked and assembled after being glued, then are conveyed to a hot press by the assembling device to be hot-pressed, and the conveying device conveys the slabs to a finished product area after the hot pressing is finished; the proposal provided by the invention abandons the traditional manual jointed boards and manual assembly, and the adoption of the mechanized jointed boards and assembly can improve the consistency of the plywood, improve the production quality and the production efficiency of the plywood, continuously produce the plywood with infinite length and cut according to the required length.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a production line of a one-step formed continuous hot-pressed thin plywood;
FIG. 2 is a schematic view of a longitudinal splice device;
FIG. 3 is a schematic view of a transverse splicing device;
FIG. 4 is a schematic diagram of a board splicing mechanism;
fig. 5 and fig. 6 are schematic diagrams of two application scenarios of a single board serial group splicing mechanism respectively;
in the figure: 100-slab continuous splicing device; 200-gluing device; 300-assembling device; 400-a hot press; 500-conveying device; 600-cutting device;
110-a single board splicing mechanism; 120-a single board serial group splicing mechanism;
1-a first front section conveying roller way; 11-a first front-section roller; 2-a first alignment baffle; 3-a first rear section conveying roller way; 31-a first rear-section roller; 4-photo-electric position and velocity detectors; 5-a first adhesive tape roller set; 6-a second front section conveying roller way; 61-a second front-section roller; 7-a second alignment baffle; 8-a second rear section conveying roller way; 81-a second rear-section roller; 9-a second adhesive tape roller set; 10-pinch rollers.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a one-step forming continuous hot-pressing thin type plywood production line and a production method thereof, which are used for solving the problems in the prior art, improving the production quality and the production efficiency of the plywood and realizing continuous production.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The embodiment provides a one-step forming continuous hot-pressing thin plywood production line, as shown in fig. 1, comprising: the continuous slab splicing device 100, the gluing device 200, the assembly device 300, the hot press 400 and the conveying device 500 are sequentially arranged along the extending direction of the production line, the continuous slab splicing device 100 is provided with a plurality of continuous slab splicing devices, the continuous slab splicing device 100 is sequentially arranged from top to bottom, the continuous slab splicing device 100 is used for splicing a single plate into a slab, the gluing device 200 is used for gluing the upper surface of the slab, of course, the power of the motion of the slab to the assembly device 300 is derived from the continuous slab splicing device 100, and in other embodiments, a short-circuit transmission belt or a roller can be arranged between the assembly device 300 and the continuous slab splicing device 100 to realize the purpose of conveying the slab; the assembly device 300 is used for receiving glued slabs and stacking a plurality of slabs up and down, the hot press 400 is used for hot pressing formed slabs stacked up and down, the hot press is preferably a flat press continuous hot press, and the conveying device 500 is used for conveying finished plywood after hot pressing to a finished product area.
The one-step forming continuous hot-pressing thin plywood production line provided by the embodiment is suitable for producing thin plywood, the slab continuous splicing device 100 continuously produces slabs, the slabs are produced and are conveyed to the assembly device 300 for stacking assembly after being glued, then are conveyed to the hot press 400 by the assembly device 300 for hot pressing, and the conveying device 500 conveys the slabs to a finished product area after the hot pressing is finished; the scheme that this embodiment provided has abandoned traditional manual makeup and manual work group's base, adopts mechanized makeup and group's base can improve the uniformity of plywood, and can improve the production quality and the production efficiency of plywood, but continuous production.
In some embodiments, since the plywood is generally composed of an odd number, and the splicing seams of two adjacent slabs need to be staggered, so as to improve the stability of the plywood, the slab continuous splicing device 100 in this embodiment includes two types, one type is a longitudinal splicing device and the other type is a transverse splicing device;
as shown in fig. 2, the longitudinal splicing device can splice the single boards into a single board serial group along the longitudinal direction of the single boards, and then splice the single board serial group along the transverse direction of the single boards for a plurality of stages to form a slab; as shown in fig. 2, in the embodiment shown in fig. 2, the single board strings are subjected to two-stage splicing to form a veneer board with a width four times that of the single board, when the width of the required veneer board is twice that of the single board, only one-stage splicing is needed, and when the width of the required veneer board is eight times that of the single board, three-stage splicing is needed, so that the number of required splicing stages is determined by the width of the required veneer board.
As shown in fig. 3, the transverse splicing device splices the single boards into a single board serial group along the transverse direction of the single boards, and then splices the single board serial group along the longitudinal direction of the single boards for a plurality of stages to form a slab; or the transverse splicing device is directly spliced into a plate blank along the transverse direction of the single plate; the principle of the transverse splicing device is the same as that of the longitudinal splicing device, and the transverse splicing device is determined according to the width of the required plywood;
the longitudinal splicing device and the transverse splicing device are arranged in a crossing way.
In specific application, for convenience in manufacturing, the width of the veneer is generally set to be half of the length; of course, in other embodiments, the length may be an integer multiple of the width.
In some embodiments, the longitudinal splicing device splices the single boards into a single board string group along the longitudinal direction of the single board by using the single board splicing mechanism 110;
the longitudinal splicing device utilizes the single board serial group splicing mechanism 120 to splice the single board serial group along the single board transversely for a plurality of stages to form a plate blank;
the transverse splicing device utilizes the veneer splicing mechanism 110 to splice the veneers into a veneer string or a slab along the veneer transverse direction;
the transverse splicing device utilizes the single-board serial group splicing mechanism 120 to longitudinally splice the single-board serial groups to form a slab;
as shown in fig. 4, the veneer splicing mechanism 110 includes a first leveling baffle 2, a first front-stage conveying roller way 1, a first rear-stage conveying roller way 3, and a first bonding device.
The first leveling baffle 2 extends along a first straight line and is fixedly arranged, the first front section conveying roller way 1 is arranged on one side of the first leveling baffle 2, and the first front section conveying roller way 1 and the first rear section conveying roller way 3 are connected in a front-back mode;
the conveying direction of the first front section conveying roller way 1 is inclined towards the first alignment baffle 2; specifically, the first front-section conveying roller way 1 comprises a plurality of first front-section rollers 11, each first front-section roller 11 is sequentially arranged along the extending direction of the first alignment baffle plate 2, and the first front-section rollers 11 gradually approach the first rear-section conveying roller way 3 from one end close to the first alignment baffle plate 2 to the other end; the single plates on the first front-section roller 11 are conveyed towards the rear inclined to the first alignment baffle 2 when the first front-section roller 11 rotates, and one side edge of each single plate can be aligned on a straight line under the action of the first alignment baffle 2; in addition, in order to achieve a better alignment effect, a trimming mechanism can be arranged in front of the first front-section conveying roller way 1 and used for trimming one side of the single plate, so that the edge of the single plate is neat, and the subsequent alignment process is facilitated.
The single boards which are aligned by the first front-section conveying roller way 1 and the first alignment baffle plate 2 are conveyed to the first rear-section conveying roller way 3 under the conveying action of the first front-section conveying roller way 1, and the first rear-section conveying roller way 3 is used for conveying the single boards backwards along a first straight line; specifically, in order to realize better transmission effect, first back end rollgang 3 includes upper and lower first back end roller 31 that sets up in pairs, the veneer passes through from upper and lower two first back end roller 31 between, upper and lower two first back end roller 31 rotation opposite direction just homoenergetic paste in the surface of veneer, upper and lower two first back end roller 31 clamp the effect that the veneer transmitted is better than the effect that only sets up a roller, and upper and lower two first back end roller 31 clamp the veneer can play the effect of flattening the veneer of distortion, veneer thickness is generally less than 2mm, deposit for a long time or insolate can make it possess certain camber, and this device sets up the first back end roller 31 that the multiunit set up relatively from top to bottom can flatten the veneer, and then improve the plywood quality.
In order to realize the front-back butt joint of any two adjacent veneers, a first front-section roller 11 in the first front-section conveying roller way 1 and a first rear-section roller 31 in the first rear-section conveying roller way 3 are adjustable-speed rollers; the operator can realize the effect that the rear single plate is tightly abutted against the front single plate by adjusting the speed of the first front-stage roller 11 and the first rear-stage roller 31 at different positions without manually adjusting the positions of the single plates by the operator, in addition, in the preferred embodiment, the scheme provided by the embodiment further comprises a photoelectric position and speed detector 4, the photoelectric position and speed detector 4 is used for detecting the positions and the speeds of the single plates and transmitting the positions and the speeds to a control system, and the control system coordinates and controls the speeds of the first front-stage roller 11 and the first rear-stage roller according to the position relation and the speeds of the single plates so as to realize the purpose of front-rear butt joint of the two single plates. The photoelectric position and speed detector 4 is arranged below the gap between the rollers, and when a single board passes through, the photoelectric position and speed detector 4 can detect the position of the single board, and the effect of calculating the moving speed of the single board is realized through corresponding calculation of a control system (computer software).
The first bonding device is used for bonding and fixing two adjacent veneers which are aligned front and back and are butted with each other to form a veneer serial group which is connected in sequence.
The veneer splicing mechanism 110 provided by the embodiment can realize the purpose of mechanically splicing veneers to manufacture plywood, so that the production quality and the production efficiency of the plywood can be improved, and continuous production can be realized.
In some embodiments, the first bonding device includes a first adhesive tape roller set 5 and a first up-down driving device, the first adhesive tape roller set 5 includes two first adhesive tape rollers that are disposed up and down relatively, the first adhesive tape rollers are disposed between two adjacent first rear-section rollers 31, the first up-down driving device is used for driving the first adhesive tape rollers to approach each other to be respectively attached to the upper and lower sides of the veneer, the first adhesive tape rollers attached to the veneer can release the adhesive tape and bond and fix two adjacent veneers that are aligned front and back and are butted with each other to form a veneer string group that is connected in sequence. The first up-down driving device can be an air cylinder or a linear motor, the driving process of the first up-down driving device is controlled by the control system, the bonding length of the adhesive tape can be adjusted, and a cutting knife can be further arranged, the adhesive tape can be conveniently controlled by the control system, in addition, in other embodiments, the adhesive tape on the first adhesive tape roller can be further arranged into a multi-section adhesive tape, and the length of each section of adhesive tape can be 5 cm-15 cm.
In other embodiments, the first bonding device may also be a bonding glue spraying device, where the bonding glue spraying device is used to spray bonding glue to the butt seam of the veneer to achieve the effect of preliminary fixed connection.
As shown in fig. 5 and fig. 6, the single board serial group splicing mechanism 120 includes a second alignment baffle 7, two second front section conveying roller tables 6, a second rear section conveying roller table 8 and a second bonding device, the second alignment baffle 7 extends along a first straight line and is fixedly arranged, the two second front section conveying roller tables 6 are respectively arranged at two sides of the second alignment baffle 7, and the second front section conveying roller tables 6 and the second rear section conveying roller tables 8 are connected front and back;
the conveying directions of the two second front-section conveying roller tables 6 are inclined towards the second alignment baffle 7; specifically, the second front-section conveying roller way 6 includes a plurality of second front-section rollers 61, each second front-section roller 61 is sequentially arranged along the extending direction of the second alignment baffle 7, and the second front-section rollers 61 gradually draw close towards the second rear-section conveying roller way 8 from one end close to the second alignment baffle 7 to the other end; when the second front section roller 61 rotates, the veneer strings on the second front section roller 61 are conveyed towards the rear inclined to the second alignment baffle 7, one side edge of the veneer strings on two sides of the second alignment baffle 7 can be aligned with two sides of the second alignment baffle 7 under the action of the second alignment baffle 7, and after the veneer strings are conveyed to exceed the second alignment baffle 7, the two veneer strings are butted under the conveying action of the second front section conveying roller way 6 so as to facilitate the subsequent bonding of the alignment seam;
the single board serial group which is aligned by the second front section conveying roller way 6 and the second alignment baffle 7 is transmitted to the second rear section conveying roller way 8 under the conveying action of the second front section conveying roller way 6, and the second rear section conveying roller way 8 is used for transmitting the single board serial group backwards along the first straight line; specifically, in order to achieve better transmission effect, the second rear-section conveying roller way 8 comprises upper and lower second rear-section rollers 81 which are arranged in pairs, and the single board passes through between the upper and lower second rear-section rollers 81, and the upper and lower second rear-section rollers 81 are opposite in rotation direction and can be tightly attached to the surface of the single board serial group.
The second bonding device is used for bonding and fixing two adjacent veneer strings which are aligned left and right and are mutually butted. The second bonding device comprises a second adhesive tape roller set 9 and a second up-down driving device, the second adhesive tape roller set 9 comprises two second adhesive tape rollers which are arranged up and down oppositely, the second adhesive tape rollers are arranged between two adjacent second rear-section rollers 81 and are opposite to the second alignment baffle 7, the second up-down driving device is used for driving the second adhesive tape rollers to mutually approach to be respectively attached to the upper surface and the lower surface of the single board serial group, and the second adhesive tape rollers attached to the single board serial group can release adhesive tape and bond and fix the two single board serial groups aligned left and right. The second up-down driving device can be an air cylinder or a linear motor, the driving process of the second up-down driving device is controlled by a control system, the bonding length of the adhesive tape can be adjusted, a cutting knife can be further arranged, the adhesive tape can be conveniently controlled by the control system by controlling the cutting knife to cut the adhesive tape, in addition, in other embodiments, the adhesive tape on the second adhesive tape roller can be further arranged into a multi-section adhesive tape, and the length of each section of adhesive tape can be 5 cm-15 cm.
In some embodiments, a pressing roller 10 is disposed between the second alignment baffle 7 and the second rear-stage conveying roller way 8, where the pressing roller 10 is disposed on the second alignment baffle 7, and the pressing roller 10 is used to press the single board strings on two sides of the second alignment baffle 7 and convey the single board strings to the rear.
In some embodiments, the second front-stage conveying roller way 6 is an adjustable speed roller way, so as to achieve the purpose of staggering the butt joints on two butt joint single board strings.
In some embodiments, the coating device 200 is a shower or spray coating device, and the coating device only coats or sprays the upper surfaces of several slabs below the first slab, the coating amount being 300g/m 2 The method comprises the steps of carrying out a first treatment on the surface of the Specifically, the shower head can be used for shower coating or spraying.
In other embodiments, the coating device 20 may also be a roll coating device, where the coating device 200 includes coating rollers disposed opposite to each other from top to bottom, and when the slab is conveyed between the coating rollers, the coating rollers rotate and apply coating to the upper and lower surfaces of the slab in the middle, coating the lower surface of the topmost slab (the upper coating roller in the coating roller set for coating the topmost slab only plays a role in compacting the slab), coating the upper surface of the bottommost slab (the lower coating roller in the coating roller set for coating the bottommost slab only plays a role in compacting the slab), and the coating rollers may be driven by a driving device to rotate, or may be driven to rotate when the slab moves.
In some embodiments, the assembly device 300 is provided with a receiving and conveying surface, the receiving and conveying surface is used for receiving the slabs conveyed from the gluing device 200, the slabs are sequentially stacked on the receiving and conveying surface, the receiving and conveying surface is also used for conveying the stacked slabs into the hot press 400 for hot pressing, and the thin plywood is manufactured by the cutting device 600 after the hot pressing is finished, so that the thickness of the veneer is relatively thinner, the veneer has a certain deformation bending capability, the slabs can be bent and extended from the slab continuous splicing device 100 with the relative position higher than the receiving and conveying surface to the receiving and conveying surface, and the slabs on the slab continuous splicing device 100 are always connected with the slabs on the receiving and conveying surface due to continuous manufacture of the slabs.
In some embodiments, a guiding surface may be installed between the assembly device 300 and the slab continuous splicing device 100, where the guiding surface is formed on a slab or on a guiding frame, and the guiding surface is inclined to guide the formed slab.
In some embodiments, in order to further improve the assembly quality, the assembly device 300 further includes a side guide, where one side guide is disposed on each of the left and right sides of the receiving conveying surface, the side guide includes a front side guide section and a rear side guide section sequentially disposed along the extending direction of the receiving conveying surface, the distance between the front side guide sections gradually narrows along the extending direction of the receiving conveying surface until the distance is connected to the rear side guide section, and the distance between the rear side guide sections is always consistent and only 1-2 cm wider than the width of the slab; the side guide is used for carrying out in order to a plurality of slabs in the transportation process, and the side guide can be the side deflector, also can be the side roller group, and the side roller group includes a plurality of cylinders that extend along slab conveying direction and set up, and when the slab of stacking was carried on accepting the conveying face, the slab was gradually drawn together to the centre under the side guide's in order effect on both sides, finally formed a set of slab of aligning from top to bottom, accept the conveying face and constitute by a plurality of bottom cylinders, and the bottom cylinder rotates the purpose of realizing carrying the slab to the hot press 400, in other embodiments, still can set up a preformer in the front side of hot press 400 to further improve the hot pressing quality of plywood.
Example two
The embodiment provides a production method of a thin plywood, which is produced by using the one-step forming continuous hot-pressing thin plywood production line in the first embodiment;
wherein, the thin plywood is formed by stacking 3 layers or 5 layers of plywood blanks, and the thickness of the thin plywood is 2.1-11.0 mm.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (11)

1. A one shot forming continuous hot pressing slim plywood production line, its characterized in that: comprising the following steps: the continuous slab splicing device is provided with a plurality of continuous slab splicing devices, the continuous slab splicing devices are sequentially arranged from top to bottom, the continuous slab splicing devices are used for splicing veneers into slabs, the gluing devices are used for gluing the upper surfaces of the slabs, the slab splicing devices are used for receiving the slabs after gluing and enabling the slabs to be stacked up and down, the hot press is used for hot pressing formed slabs stacked up and down, and the conveying device is used for conveying finished plywood after hot pressing to a finished product area.
2. The one-time formed continuous hot-pressed thin plywood production line according to claim 1, wherein: the slab continuous splicing device comprises two types, wherein one type is a longitudinal splicing device, and the other type is a transverse splicing device;
the longitudinal splicing device can splice the single boards into a continuous single board serial group along the longitudinal direction of the single boards, and can splice the single board serial group along the transverse direction of the single boards to form the continuous slab;
the transverse splicing device splices the single boards into a continuous single board serial group along the transverse direction of the single boards, and can splice the single board serial group along the longitudinal direction of the single boards to form the continuous slab; or the transverse splicing device is directly spliced into the slab along the transverse direction of the veneer;
the longitudinal splicing device and the transverse splicing device are arranged in a crossing way;
the width of the veneer is 1.25-1.30 m, the length is 2.5m, and the thickness is 1.2-2.2 mm.
3. The one-time formed continuous hot-pressed thin plywood production line according to claim 2, wherein: the longitudinal splicing device splices the single boards into a continuous single board serial group along the longitudinal direction of the single boards by utilizing a single board splicing mechanism;
the longitudinal splicing device utilizes a single board serial group splicing mechanism to splice the continuous single board serial groups along the single board transversely for a plurality of stages to form the continuous slab;
the transverse splicing device splices the single boards into a continuous single board string or a continuous slab along the transverse direction of the single boards by utilizing a single board splicing mechanism;
the transverse splicing device longitudinally splices the continuous single-board strings to form continuous slabs by utilizing a single-board string splicing mechanism;
the veneer splicing mechanism comprises a first alignment baffle, a first front section conveying roller way, a first rear section conveying roller way and a first bonding device, wherein the first alignment baffle extends along a first straight line and is fixedly arranged, and the first front section conveying roller way is arranged on one side of the first alignment baffle and is connected with the first rear section conveying roller way in a front-back mode;
the conveying direction of the first front section conveying roller way is inclined towards the first alignment baffle;
the first rear-section conveying roller way is used for conveying the single plate backwards along the first straight line;
the first front-section roller in the first front-section conveying roller way and the first rear-section roller in the first rear-section conveying roller way are both speed-adjustable rollers;
the first bonding device is used for bonding and fixing two adjacent veneers which are aligned front and back and are mutually butted to form a veneer serial group which is connected in sequence;
the veneer serial group splicing mechanism comprises a second alignment baffle, two second front section conveying roller tables, a second rear section conveying roller table and a second bonding device, wherein the second alignment baffle extends along a first straight line and is fixedly arranged, the two second front section conveying roller tables are respectively arranged on two sides of the second alignment baffle, and the second front section conveying roller tables and the second rear section conveying roller tables are connected front and back;
the conveying directions of the two second front-section conveying roller tables are inclined towards the second alignment baffle plates;
the second rear-section conveying roller way is used for conveying the single board serial group backwards along the first straight line;
the second bonding device is used for bonding and fixing two adjacent veneer strings which are aligned left and right and are mutually butted.
4. The one-time formed continuous hot-pressed thin plywood production line according to claim 1, wherein: the coating device adopts spray coating or spraying, and only coats or sprays the upper surfaces of the layers of slabs below the first layer of slab, wherein the coating amount is 300g/m 2 。
5. The one-time formed continuous hot-pressed thin plywood production line according to claim 1, wherein: the assembly device is provided with a receiving and conveying surface, the receiving and conveying surface is used for receiving the slabs conveyed from the gluing device, the slabs are sequentially stacked on the receiving and conveying surface, and the receiving and conveying surface is also used for conveying the stacked slabs into the hot press for hot pressing.
6. The one-time formed continuous hot-pressed thin plywood production line according to claim 1, wherein: the hot press is a flat press continuous hot press.
7. The one-time-molding continuous hot-pressing thin plywood production line according to claim 5, wherein: the assembly device further comprises side guide pieces, wherein one side guide piece is arranged on each of the left side and the right side of the receiving conveying surface, each side guide piece comprises a side guide piece front section and a side guide piece rear section which are sequentially arranged along the extending direction of the receiving conveying surface, the distance between the two side guide piece front sections is gradually narrowed along the extending direction of the receiving conveying surface until the two side guide pieces are connected to the side guide piece rear section, and the distance between the two side guide piece rear sections is consistent all the time and is only 1-2 cm wider than the width of the slab;
the side guide piece is used for leveling a plurality of slabs in the conveying process, and can be a side guide plate or a side roller group, and the side roller group comprises a plurality of rollers which extend along the slab conveying direction.
8. The one-time-molding continuous hot-pressing thin plywood production line according to claim 3, characterized in that: the first front-section conveying roller way comprises a plurality of first front-section rollers, each first front-section roller is sequentially arranged along the extending direction of the first alignment baffle, and the first front-section rollers gradually approach the first rear-section conveying roller way from one end close to the first alignment baffle to the other end;
the first back section rollgang comprises first back section rollers which are arranged in pairs up and down, the single board passes through the upper back section roller and the lower back section roller, and the upper back section roller and the lower back section roller are opposite in rotation direction and can be tightly attached to the surface of the single board.
9. The one-time-molding continuous hot-pressing thin plywood production line according to claim 3, characterized in that: the first bonding device comprises a first adhesive tape roller set and a first up-down driving device, the first adhesive tape roller set comprises two first adhesive tape rollers which are arranged up and down oppositely, the first adhesive tape rollers are arranged between two adjacent first rear-section rollers, the first up-down driving device is used for driving the first adhesive tape rollers to be close to each other until being respectively attached to the upper surface and the lower surface of a single board, the first adhesive tape rollers attached to the single board can release adhesive tape and bond and fix the two adjacent single boards which are aligned front and back and are mutually butted to form a single board string set which is connected in sequence.
10. The one-time-molding continuous hot-pressing thin plywood production line according to claim 3, characterized in that: the slab continuous splicing device further comprises a photoelectric position and speed detector, wherein the photoelectric position and speed detector is used for detecting the position and speed of each single plate and transmitting the detected position and speed to a control system, and the control system coordinates and controls the speeds of each first front section roller and each first rear section roller according to the position relation and speed between the single plates so as to achieve the purpose of front-back butt joint of the front single plate and the rear single plate.
11. A production method of a thin plywood is characterized in that: production using the one-time-formed continuous hot-pressed thin plywood production line according to any one of claims 1 to 10;
wherein, the thin plywood is formed by stacking 3 layers or 5 layers of plywood blanks, and the thickness is 2.1-11.0 mm.
CN202310027330.9A 2023-01-09 2023-01-09 One-step forming continuous hot-pressing thin plywood production line and production method Pending CN116238015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310027330.9A CN116238015A (en) 2023-01-09 2023-01-09 One-step forming continuous hot-pressing thin plywood production line and production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310027330.9A CN116238015A (en) 2023-01-09 2023-01-09 One-step forming continuous hot-pressing thin plywood production line and production method

Publications (1)

Publication Number Publication Date
CN116238015A true CN116238015A (en) 2023-06-09

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Country Status (1)

Country Link
CN (1) CN116238015A (en)

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