CN109176759A - A method of improving Strength of Plywood - Google Patents
A method of improving Strength of Plywood Download PDFInfo
- Publication number
- CN109176759A CN109176759A CN201811051343.5A CN201811051343A CN109176759A CN 109176759 A CN109176759 A CN 109176759A CN 201811051343 A CN201811051343 A CN 201811051343A CN 109176759 A CN109176759 A CN 109176759A
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- Prior art keywords
- roller
- pressing
- air
- air bag
- sliding
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- 239000011120 plywood Substances 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000003825 pressing Methods 0.000 claims abstract description 103
- 230000006835 compression Effects 0.000 claims description 56
- 238000007906 compression Methods 0.000 claims description 56
- 239000002356 single layer Substances 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 8
- 239000002023 wood Substances 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 25
- 238000003475 lamination Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000005574 cross-species transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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
- 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
- B27D3/00—Veneer presses; Press plates; Plywood presses
Landscapes
- 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 belongs to glued board processing technique fields, specifically a kind of method for improving Strength of Plywood, prepressing device used in this method includes rack, the bottom of the frame is uniformly provided with one group of conveying roller, upper rack middle position is symmetrically arranged with two side pressure rollers, the side of side pressure roller is equipped with the first pressure roller, the other side is equipped with the second pressure roller, and the frame top is equipped with gag lever post；Gag lever post is equipped with the first vertical limiting slot, the outside of the gag lever post is equipped with power plant module, the power plant module includes motor, No.1 cylinder, turntable and connecting rod, conveying roller both ends are socketed a gear respectively, first pressure roller both ends are equipped with the first sliding unit, and the second pressure roller both ends are equipped with the second sliding unit；The method that prepressing device used in the present invention uses branch's pressing is synchronized by the first, second sliding unit, is enabled the first pressure roller and the second pressure roller reciprocating rotation to press laminate, is improved the intensity of pressing efficiency and laminate.
Description
Technical Field
The invention belongs to the technical field of plywood processing, and particularly relates to a method for improving the strength of plywood.
Background
The plywood is one of common furniture materials, is one of three large plates of an artificial plate, and can also be used as a material for airplanes, ships, trains, automobiles, buildings, packing boxes and the like. A group of veneers are typically assembled and glued perpendicular to each other in the direction of the adjacent layers of wood grain, and the skins and inner sheets are typically symmetrically disposed on either side of the center layer or core. The glued veneer is pressed into the wood grain board blank by the criss-cross matching of the glued veneer according to the wood grain direction under the condition of heating or not heating. The number of layers is generally odd, and a few are even. The difference of physical and mechanical properties in the longitudinal and transverse directions is small. The types of plywood commonly used are plywood, plywood and the like. The plywood can improve the utilization rate of the wood and is a main way for saving the wood.
The invention discloses a prepressing device of plywood, which comprises a fixed frame, a conveying roller, a first pressing roller, a second pressing roller and side pressing rollers, wherein a movable seat and a screw rod move up and down through a rotating cam, so that the height of the side pressing rollers is changed regularly; after the laminated board is pressed by the first pressing roller and the side pressing roller, the laminated board is pressed for the second time by the second pressing roller, so that the pressing effect is further improved; the technical scheme adopts a method of partial pressing, so that each part can be uniformly pressed, the problem caused by large-area pressing is effectively avoided, the structure is simple, and the production cost is low; however, the technical scheme can not realize the whole consistency of the device, and the pressing efficiency needs to be further improved.
In order to solve the above problems, the invention provides a method for improving the strength of a plywood, wherein a prepressing device used in the method is synchronously linked through a first sliding unit and a second sliding unit, so that a first pressing roller and a second pressing roller can be used for pressing and laminating the plywood in a reciprocating manner, and the pressing efficiency and the strength of the plywood are improved.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a method for improving the strength of a plywood, wherein a prepressing device used in the method drives a guide rod to move up and down and left and right through a power module, so that a side pressing roller can contact a plywood and roll and press the plywood to two sides, and the plywood is pressed uniformly; the guide rod slides in the cylindrical groove of the sleeve in a piston mode to extrude gas in the cylindrical groove, the compressed gas is guided into the second air cylinder, the air cylinder pushes the conveying roller located on the outermost side of the first pressing roller to rotate through the disc, synchronous linkage is achieved under the meshing transmission effect of adjacent conveying roller gears through the transmission gear, and conveying efficiency of the laminate is improved; simultaneously through the synchronous linkage of first, second slip unit for first compression roller and second compression roller can reciprocate to compress tightly the plywood, have strengthened the pressfitting effect, have improved the intensity of pressfitting efficiency and plywood.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for improving the strength of plywood comprises the following steps:
s1: placing the single-layer plate on a vibrating machine for coating an adhesive; when the single-layer plates vibrate, the adhesive is brushed, so that the adhesive can permeate into cracks and micropores in the single-layer plates, the single-layer plates can be well glued, and the strength of the plywood is improved;
s2: saw dust is added to the single-layer board glue layer which is coated in the S1; on one hand, the added sawdust can absorb heat to accelerate the cooling of the glue layer of the single-layer board, on the other hand, the adhesion of the adhesive can be increased, so that the gluing among the single-layer boards is better, and the strength of the plywood is improved;
s3: superposing the single-layer plates in the step S2 and conveying the single-layer plates into a pre-pressing device for pressing;
s4: bending the laminated board pressed in the S3 in solid wood bending equipment; the bonding surfaces of the laminated plates can be fully contacted by bending after pressing, so that the strength of the plywood is enhanced;
s5: pressing the laminate bent in the step S4 again;
the prepressing device comprises a rack, conveying rollers, a first pressing roller, a second pressing roller and side pressing rollers, wherein a group of conveying rollers are uniformly arranged at the bottom of the rack; two side compression rollers are symmetrically arranged in the middle of the upper part of the rack, a first compression roller is arranged on one side of each side compression roller, a second compression roller is arranged on the other side of each side compression roller, and two ends of each first compression roller and two ends of each second compression roller are rotatably connected with the rack; the top of the rack is provided with a limiting rod; a vertical first limiting groove is formed in the limiting rod, a circular ring is arranged in the first limiting groove, the upper end of the circular ring is connected to the top of the first limiting groove through a spring, a first air bag is arranged below the circular ring, and the circular ring is sleeved on a first guide rod; the outer side of the limiting rod is provided with a power module, the power module is connected with one end of the first guide rod, and the power module is used for pushing the side pressure roller to vertically and horizontally move; the other end of the first guide rod penetrates through the circular ring and is connected in the cylindrical groove on the left side of the sleeve in a sliding mode, one end of the second guide rod on the other side is connected in the cylindrical groove on the right side of the sleeve in a sliding mode, and the cylindrical grooves on the two sides are not communicated with each other; the first guide rod and the second guide rod are fixedly connected with a fixed block, and two ends of the side pressing roller are rotatably connected with the fixed blocks; wherein,
the power module comprises a motor, a first air cylinder, a rotary table and a connecting rod, wherein the motor is fixedly arranged on the side wall of the rack, an output shaft of the motor is fixedly connected with the first air cylinder, the end head of the first air cylinder is fixedly connected with the rotary table, and an air cavity of the first air cylinder is communicated with the first air bag; one end of the connecting rod is connected with the rotary table, and the other end of the connecting rod is hinged with the first guide rod; and two ends of the conveying roller are sleeved with a gear. When the lateral compression roller is used, firstly, a motor in the power module on one side is started, a motor output shaft drives a first air cylinder, the first air cylinder drives a rotary table to rotate periodically, the rotary table rotates to drive a connecting rod to reciprocate, the connecting rod drives a first guide rod to reciprocate, so that the height of the lateral compression roller is changed periodically, meanwhile, the first guide rod drives a circular ring in a first limiting groove on one side to compress a first air bag below the circular ring, the first air bag is communicated with an air cavity of the first air cylinder, the piston rod of the first air cylinder extends and retracts in a reciprocating mode while rotating, so that the rotary table is pushed to move in a reciprocating mode, the first guide rod is driven to move left and right through the connecting rod, and the power module on the other; on one hand, the two fixed blocks are used for driving the two side compression rollers to move left and right; when the two side pressing rollers contact the sleeve, the bottom end of the side pressing roller just contacts the laminated plate, the pressing rollers on the two sides move in the direction away from the sleeve, and the two sides of the laminated plate are pressed, so that the laminated plate is completely pressed, and the pressing effect is good; on the other hand, the first guide rod and the second guide rod stretch into the cylindrical groove piston motion of the two sides of the sleeve, the laminate to be laminated is conveyed to the first pressing roller for primary lamination, the laminate can be conveyed under the certain guiding effect, the laminate can be conveyed synchronously, secondary lamination is carried out through the second pressing roller after the lamination of the side pressing rollers, the lamination effect is further improved, the lamination is uniform, and the lamination effect of the laminate is improved.
As one implementation mode, a second limiting groove is formed in the side wall of the bottom of the rack, a limiting plate is arranged in the second limiting groove, one end of the limiting plate is connected to the top of the second limiting groove through a spring, and a second air bag is arranged at the other end of the limiting plate; one end of a conveying roller positioned at the outermost side of the first pressing roller penetrates through the limiting plate to be connected with the disc, and the other end of the conveying roller is rotatably connected with the other opposite limiting plate; one end of the disc is connected with the end of a second cylinder, the second cylinder is communicated with the cylindrical grooves on the two sides of the sleeve, and the second cylinder is used for pushing the disc to rotate periodically. During the use, cylinder inslot piston motion of sleeve both sides is stretched into to a guide arm and No. two guide arms, the gas of compression cylinder inslot, gas after the compression is leading-in No. two cylinders, make No. two cylinder up-and-down motion, thereby promote the disc cycle and rotate and reciprocate, the disc drives the conveying roller that is located first compression roller outside and reciprocates and rotates, gear revolve on the conveying roller, and then promote a set of conveying roller synchronous rotation through drive gear, make plywood conveying efficiency improve, and the work efficiency of device is improved.
As one embodiment, two ends of the first press roller are symmetrically provided with first sliding units, each first sliding unit comprises a third cylinder, a first sliding block and a third air bag, an air cavity of the third cylinder is communicated with the second air bag, and the frames on two sides of the first press roller are provided with the first sliding blocks in a sliding manner; two ends of the first press roller are respectively and rotatably connected with first sliding blocks on two sides, one side of each first sliding block is connected with the end of the third air cylinder, and the other side of each first sliding block is provided with a third air bag; the first sliding block can slide in a reciprocating manner under the pushing of a third air cylinder; two ends of the second pressing roller are provided with second sliding units, each second sliding unit comprises a fourth cylinder, a second sliding block and a fourth air bag, an air cavity of the fourth cylinder is communicated with the third air bag, the frames on two sides of the second pressing roller are respectively provided with the first sliding blocks in a sliding manner, two ends of the second pressing roller are respectively rotatably connected with the second sliding blocks on two sides, one side of each second sliding block is connected with the fourth cylinder, and the other side of each second sliding block is provided with the fourth air bag; and the fourth air bag is communicated with an air passage arranged on the side pressing roller. When the device is used, when the conveying roller moves up and down, the limiting plate in the second limiting groove can extrude the second air bag below the second limiting groove along with the second air bag, so that gas in the second air bag is compressed and then is guided into the third air cylinder, the piston rod of the third air cylinder reciprocates, the first sliding block is pushed to slide in the sliding groove in a reciprocating mode, the first pressing roller is driven to rotate in a reciprocating mode, and the effect of primary lamination of the laminated plate is better; meanwhile, the first sliding block can extrude the third air bag on one side when sliding in a reciprocating manner, so that gas in the third air bag is compressed and then is guided into the fourth air cylinder, and a piston rod of the fourth air cylinder reciprocates, so that the second sliding block is pushed to slide in the sliding groove in a reciprocating manner, and the second pressing roller is driven to rotate in a reciprocating manner, so that the lamination effect of the finally laminated laminate is better, the linkage between mechanisms is realized, and the working efficiency of the device is improved; simultaneously the second sliding block can extrude the gas in the No. four gasbag of one side when removing, and on leading the air flue that sets up on the side compression roller with the gas after the compression, can clear up the plywood surface to accelerate the cooling of plywood and stereotype.
In one embodiment, the surface of the gear is wrapped with centrifugal paper, and the centrifugal paper is used for preventing the gear from being adhered with the adhesive. During the use, carry by the conveying roller after the plywood veneer to implement the pressfitting in transportation process, the pressfitting in-process can appear the adhesive and spill over and be stained with the phenomenon of attaching to the gear, avoided being stained with the emergence of attaching after wrapping up centrifugal paper through the gear surface, thereby improved the life of gear and the work efficiency of device.
As one embodiment, a group of air bags with the sizes of five are uniformly arranged at the bottom of the conveying roller and used for buffering the pressure when the conveying roller moves downwards. During the use, No. two cylinders rotate when promoting the conveying roller through the disc and reciprocate, when the side compression roller, first compression roller and second compression roller compress close the plywood, provide the buffering for the plywood through set up a set of No. five gasbags in the conveying roller bottom that is located first compression roller outside, and the adhesive is avoided spilling over to slow down pressure when the pressfitting.
In one embodiment, the cross section of the conveying roller is annular, circumferential air holes are uniformly formed in the surface of the conveying roller, and the air holes are communicated with the fifth air bag. During the use, through the gas pocket blowout with the internal compression of No. five gasbags, the cooling adhesive, and then make the plywood design efficiency improve.
The invention has the following beneficial effects:
1. the invention relates to a method for improving the strength of plywood, wherein a prepressing device used in the method drives a first air cylinder by starting a motor in a power module at one side, an output shaft of the motor drives the first air cylinder, the first air cylinder drives a turntable to periodically rotate, the turntable rotates to drive a connecting rod to reciprocate, the connecting rod drives a first guide rod to reciprocate, so that the height of a side compression roller is periodically changed, meanwhile, the first guide rod drives a circular ring in a first limiting groove at one side to compress a first air bag below the first air bag, the first air bag is communicated with an air cavity of the first air cylinder, so that the first air cylinder rotates and a piston rod reciprocates simultaneously, so that the turntable is pushed to reciprocate, the first guide rod is driven to move left and right by the connecting rod, and the power module at the other side pushes a second guide rod; on one hand, the two fixed blocks are used for driving the two side compression rollers to move left and right; when the two side pressing rollers contact the sleeve, the bottom end of the pressing roller just contacts the laminate, the two side pressing rollers move in the direction away from the sleeve, and the two sides of the laminate are pressed, so that the laminate is completely pressed, the pressing effect is good, and the later-stage shaping and pressing are facilitated; on the other hand, the first guide rod and the second guide rod stretch into the cylindrical groove piston motion of the two sides of the sleeve, the laminate to be laminated is conveyed to the first pressing roller for primary lamination, the laminate can be conveyed under the certain guiding effect, the laminate can be conveyed synchronously, secondary lamination is carried out through the second pressing roller after the lamination of the side pressing rollers, the lamination effect is further improved, the lamination is uniform, and the lamination effect of the laminate is improved.
2. The invention relates to a method for improving the strength of plywood, wherein a prepressing device used in the method extends into a cylindrical groove at two sides of a sleeve through a first guide rod and a second guide rod to move through a piston so as to compress gas in the cylindrical groove, the compressed gas is guided into a second cylinder so as to enable the second cylinder to reciprocate up and down, thereby pushing a disc to rotate periodically and move up and down, the disc drives a conveying roller positioned at the outermost side of a first press roller to move up and down and rotate, a gear on the conveying roller rotates, and the conveying roller is further pushed to rotate synchronously through a transmission gear, so that the conveying efficiency of a plywood is improved, and the working efficiency of the device is improved.
3. According to the method for improving the strength of the plywood, when a prepressing device used in the method moves up and down through a conveying roller located on the outermost side of a first pressing roller, a limiting plate in a second limiting groove can extrude a second air bag below the second limiting groove along with the conveying roller, and gas in the second air bag is compressed and then guided into a third air cylinder, so that a piston rod of the third air cylinder reciprocates, a first sliding block is pushed to slide in a sliding groove in a reciprocating mode, the first pressing roller is driven to rotate in a reciprocating mode, and the effect of primarily pressing the plywood is better; meanwhile, the first sliding block can extrude the third air bag on one side when sliding in a reciprocating manner, so that gas in the third air bag is compressed and then is guided into the fourth air cylinder, and a piston rod of the fourth air cylinder reciprocates, so that the second sliding block is pushed to slide in the sliding groove in a reciprocating manner, and the second pressing roller is driven to rotate in a reciprocating manner, so that the lamination effect of the finally laminated laminate is better, the linkage between mechanisms is realized, and the working efficiency of the device is improved; simultaneously the second fixed block can extrude the gas in the No. four gasbag of one side when removing, and on leading the air flue that sets up on the side compression roller with the gas after the compression, can clear up the plywood surface to accelerate the cooling of plywood and stereotype.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a schematic view of the main structure of the pre-pressing device used in the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 2;
in the figure: the device comprises a rack 1, a conveying roller 2, a first press roller 3, a second press roller 4, a side press roller 5, a limiting rod 6, a first limiting groove 7, a circular ring 71, a first air bag 72, a first guide rod 8, a power module 9, a motor 91, a first air cylinder 92, a rotary disc 93, a connecting rod 94, a sleeve 10, a second guide rod 11, a fixed block 12, a gear 13, a second limiting groove 14, a limiting plate 141, a second air bag 142, a disc 15, a second air cylinder 16, a first sliding unit 17, a third air cylinder 171, a first sliding block 172, a third air bag 173, a second sliding unit 18, a fourth air cylinder 181, a second sliding block 182, a fourth air bag 183 and a fifth air bag 19.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the method for improving the strength of plywood of the present invention comprises the following steps:
s1: placing the single-layer plate on a vibrating machine for coating an adhesive; when the single-layer plates vibrate, the adhesive is brushed, so that the adhesive can permeate into cracks and micropores in the single-layer plates, the single-layer plates can be well glued, and the strength of the plywood is improved;
s2: saw dust is added to the single-layer board glue layer which is coated in the S1; on one hand, the added sawdust can absorb heat to accelerate the cooling of the glue layer of the single-layer board, on the other hand, the adhesion of the adhesive can be increased, so that the gluing among the single-layer boards is better, and the strength of the plywood is improved;
s3: superposing the single-layer plates in the step S2 and conveying the single-layer plates into a pre-pressing device for pressing;
s4: bending the laminated board pressed in the S3 in solid wood bending equipment; the bonding surfaces of the laminated plates can be fully contacted by bending after pressing, so that the strength of the plywood is enhanced;
s5: pressing the laminate bent in the step S4 again;
the prepressing device comprises a rack 1, conveying rollers 2, a first pressing roller 3, a second pressing roller 4 and side pressing rollers 5, wherein a group of conveying rollers 2 are uniformly arranged at the bottom of the rack 1, a rotating shaft is arranged in the center of each conveying roller, and the rotating shaft is rotatably connected with the rack 1; two side compression rollers 5 are symmetrically arranged in the middle of the upper part of the rack 1, a first compression roller 3 is arranged on one side of each side compression roller 5, a second compression roller 4 is arranged on the other side of each side compression roller 5, and the two ends of each first compression roller and the two ends of each second compression roller are rotatably connected with the rack; the top of the frame 1 is provided with a limiting rod 6; a vertical first limiting groove 7 is formed in the limiting rod 6, a circular ring 71 is arranged in the first limiting groove 7, the upper end of the circular ring 71 is connected to the top of the first limiting groove 7 through a spring, a first air bag 72 is arranged below the circular ring 71, and the circular ring 71 is sleeved on a first guide rod 8; a power module 9 is arranged on the outer side of the limiting rod 6, the power module 9 is connected with one end of the first guide rod 8, and the power module 9 is used for pushing the side pressing roller 5 to vertically and horizontally move; the other end of the first guide rod 8 penetrates through the circular ring 71 to be connected in the cylindrical groove on the left side of the sleeve 10 in a sliding mode, one end of the second guide rod 11 on the other side is connected in the cylindrical groove on the right side of the sleeve 10 in a sliding mode, and the cylindrical grooves on the two sides are not communicated with each other; a fixed block 12 is fixedly connected to each of the first guide rod 8 and the second guide rod 11, and two ends of the side pressing roller 5 are rotatably connected with the fixed blocks 12; wherein,
the power module 9 comprises a motor 91, a first air cylinder 92, a turntable 93 and a connecting rod 94, the motor 91 is fixedly installed on the side wall of the rack 1, an output shaft of the motor 91 is fixedly connected with the first air cylinder 92, the end of the first air cylinder 92 is fixedly connected with the turntable 93, and an air cavity of the first air cylinder 92 is communicated with the first air bag 72; one end of the connecting rod 94 is connected with the rotary table 93, and the other end of the connecting rod is hinged with the first guide rod 8; and two ends of the conveying roller 2 are sleeved with a gear 13. When the lateral compression roller is used, firstly, the motor 91 in the power module 9 on one side is started, the output shaft of the motor 91 drives the first air cylinder 92, the first air cylinder 92 drives the rotary disc 93 to rotate periodically, the rotary disc 93 rotates to drive the connecting rod 94 to reciprocate up and down, the connecting rod 94 drives the first guide rod 8 to reciprocate up and down, so that the height of the lateral compression roller 5 is changed periodically, meanwhile, the first guide rod 8 drives the circular ring 71 in the first limiting groove 7 on one side to compress the first air bag 72 below, the first air bag 72 is communicated with the air cavity of the first air cylinder 92, so that the piston rod of the first air cylinder 92 can reciprocate and extend while rotating, so that the rotary disc 93 is pushed to reciprocate, so that the first guide rod 8 is driven to move left and right through the connecting rod 94, and the power module 9 on the other; on one hand, the two fixed blocks 12 fixedly connected drive the two side compression rollers 5 to move left and right; when the two side pressing rollers 5 are in contact with the sleeve 10, the bottom end of each side pressing roller is just in contact with the laminate, the pressing rollers 5 on the two sides move in the direction away from the sleeve 10, and the two sides of the laminate are pressed, so that the laminate is completely pressed, and the pressing effect is good; on the other hand, the first guide rod 8 and the second guide rod 11 extend into the cylindrical grooves at two sides of the sleeve 10 to perform piston motion, the laminated plate to be pressed is conveyed to the first pressing roller 3 to be pressed for the first time, the conveyed laminated plate can be guided to a certain direction, the laminated plate can be conveyed synchronously, secondary pressing is performed through the second pressing roller 4 after pressing by the side pressing rollers 5, the pressing effect is further improved, pressing is uniform, and the pressing effect of the laminated plate is improved.
As an implementation manner, a second limiting groove 14 is arranged on the side wall of the bottom of the rack 1, a limiting plate 141 is arranged in the second limiting groove 14, one end of the limiting plate 141 is connected to the top of the second limiting groove 14 through a spring, and a second airbag 142 is arranged at the other end of the limiting plate 141; one end of the conveying roller 2 positioned at the outermost side of the first pressing roller 3 passes through the limiting plate 141 and is connected with the disc 15, and the other end of the conveying roller is rotatably connected with the other opposite limiting plate 141; one end of the disc 15 is connected with the end of a second cylinder 16, the second cylinder 16 is communicated with the cylindrical grooves on the two sides of the sleeve 10, and the second cylinder 16 is used for pushing the disc 15 to rotate periodically. During the use, No. 8 guide arms and No. 11 guide arms stretch into the cylinder inslot piston motion of sleeve 10 both sides, the gas in the compression cylinder inslot, gas after the compression is leading-in No. two cylinders 16, make No. two cylinder 16 up-and-down reciprocating motion, thereby promote 15 periodic rotation of disc and reciprocate, disc 15 drives and is located the conveying roller 2 in first compression roller 3 outside and reciprocates and rotates, the gear on the conveying roller 2 rotates, and then promote a set of conveying roller 2 synchronous rotation through drive gear, make plywood conveying efficiency improve, the work efficiency of device has been improved.
As an embodiment, the first sliding units 17 are symmetrically arranged at two ends of the first pressing roller 3, the first sliding units 17 include a third cylinder 171, a first sliding block 172 and a third air bag 173, an air chamber of the third cylinder 171 is communicated with the second air bag 142, and the first sliding blocks 172 are slidably mounted on the frame 1 at two sides of the first pressing roller 3; two ends of the first press roller 3 are respectively connected with the first sliding blocks 172 on two sides in a rotating manner, one side of each first sliding block 172 is connected with the end of the third air cylinder 171, and the other side of each first sliding block 172 is provided with a third air bag 173; the first sliding block 172 can slide in a reciprocating manner under the pushing of the third air cylinder 171; the two ends of the second press roller 4 are provided with second sliding units 18, each second sliding unit 18 comprises a fourth cylinder 181, a second sliding block 182 and a fourth air bag 183, an air cavity of the fourth cylinder 181 is communicated with the third air bag 173, the first sliding blocks 182 are slidably mounted on the rack 1 on the two sides of the second press roller 4, the two ends of the second press roller 4 are respectively rotatably connected with the second sliding blocks 182 on the two sides, one side of each second sliding block 182 is connected with the fourth cylinder 181, and the other side of each second sliding block 182 is provided with the fourth air bag 183; the fourth air bag 183 is communicated with an air passage arranged on the side pressure roller 5. When the conveying roller 2 moves up and down, the limiting plate 141 in the second limiting groove 14 extrudes the second air bag 142 below along with the limiting plate, so that air in the second air bag 142 is compressed and then guided into the third air cylinder 171, a piston rod of the third air cylinder 171 reciprocates, the first sliding block 172 is pushed to slide in the sliding groove in a reciprocating mode, the first pressing roller 3 is driven to rotate in a reciprocating mode, and the effect of primary laminated plates is better; meanwhile, the first sliding block 172 can extrude the third air bag 173 on one side when sliding in a reciprocating manner, so that the gas in the third air bag 173 is compressed and then is guided into the fourth air cylinder 181, and the piston rod of the fourth air cylinder 181 reciprocates, so that the second sliding block 182 is pushed to slide in the sliding groove in a reciprocating manner, and the second pressing roller 4 is driven to rotate in a reciprocating manner, so that the lamination effect of the finally laminated laminate is better, the linkage among mechanisms is realized, and the working efficiency of the device is improved; simultaneously the second slider 182 can extrude the gas in the No. four gasbag 183 of one side when removing, and on leading the gas duct that sets up on the side compression roller with the gas after the compression, can clear up the plywood surface to accelerate the cooling of plywood and stereotype.
In one embodiment, the gear 13 is coated with centrifugal paper, and the centrifugal paper is used for preventing the gear from adhering to an adhesive. During the use, the plywood is carried by conveying roller 2 after the veneer gluing to implement the pressfitting in transportation process, can appear the adhesive and spill over and be stained with the phenomenon of attaching to gear 13 in the pressfitting process, avoided being stained with the emergence of attaching after wrapping up centrifugal paper through gear 13 surface, thereby improved gear 13's life and the work efficiency of device.
In one embodiment, a group of air bags 19 with five sizes are uniformly arranged at the bottom of the conveying roller 2, and the air bags 19 with five sizes are used for buffering the pressure when the conveying roller 2 moves downwards. During the use, No. two cylinders 16 promote the simultaneous rotation that carries roller 2 reciprocated through disc 15, when side pressure roller 5, first compression roller 3 and second compression roller 4 pressfitting plywood, through set up a set of No. five gasbags 19 for the plywood provides the buffering in the conveying roller 2 bottom that is located first compression roller 3 outside, and the buffering pressure avoids the adhesive to spill over during the pressfitting.
In one embodiment, the cross section of the conveying roller 2 is annular, and circumferential air holes are uniformly formed in the surface of the conveying roller 2 and are communicated with a fifth air bag 19. During the use, through the gas pocket blowout with compressing in No. five gasbag 19, the cooling adhesive, and then make the plywood design efficiency improve.
When the lateral compression roller is used, firstly, the motor 91 in the power module 9 on one side is started, an output shaft of the motor 91 drives the first air cylinder 92, the first air cylinder 92 drives the rotary disc 93 to rotate periodically, the rotary disc 93 rotates to drive the connecting rod 94 to reciprocate up and down, the connecting rod 94 drives the first guide rod 8 to reciprocate up and down, so that the height of the lateral compression roller 5 is changed periodically, meanwhile, the first guide rod 8 drives the circular ring 71 in the first limiting groove 7 on one side to compress the first air bag 72 below, the first air bag 72 is communicated with an air cavity of the first air cylinder 92, so that the piston rod of the first air cylinder 92 can reciprocate and extend while rotating, so that the rotary disc 93 is pushed to reciprocate, so that the first guide rod 8 is driven to move left and right through the connecting rod 94, and the power module 9 on the other; on one hand, the two fixed blocks 12 fixedly connected drive the two side compression rollers 5 to move left and right; when the two side pressing rollers 5 are in contact with the sleeve 10, the bottom end of each side pressing roller is just in contact with the laminate, the pressing rollers 5 on the two sides move in the direction away from the sleeve 10, and the two sides of the laminate are pressed, so that the laminate is completely pressed, and the pressing effect is good; on the other hand, a first guide rod 8 and a second guide rod 11 which are opposite to each other on two sides extend into the cylindrical grooves on two sides of the sleeve 10 to move through pistons, gas in the cylindrical grooves is compressed, the compressed gas is guided into a second cylinder 16, the second cylinder 16 reciprocates up and down, so that the disc 15 is pushed to rotate periodically and move up and down, the disc 15 drives the conveying rollers 2 to move up and down and rotate, on one hand, gears 13 sleeved between the adjacent conveying rollers 2 are connected through transmission gears, the laminate to be laminated is conveyed to the first pressing roller 3 to be subjected to primary lamination, a certain guiding effect on the conveyed laminate can be achieved, and the laminate can be conveyed synchronously; on the other hand, when the conveying roller 2 moves up and down, the limiting plate 141 in the second limiting groove 14 extrudes the second air bag 142 below along with the second air bag, so that the compressed air in the second air bag 142 is guided into the third air cylinder 171, the piston rod of the third air cylinder 171 reciprocates, the first sliding block 172 is pushed to slide in the sliding groove in a reciprocating manner, the first pressing roller 3 is driven to rotate in a reciprocating manner, and the effect of primarily pressing the laminated plate is better; meanwhile, the first sliding block 172 can extrude the third air bag 173 on one side when sliding in a reciprocating manner, so that the gas in the third air bag 173 is compressed and then is guided into the fourth air cylinder 181, and the piston rod of the fourth air cylinder 181 reciprocates, so that the second sliding block 182 is pushed to slide in the sliding groove in a reciprocating manner, and the second pressing roller 4 is driven to rotate in a reciprocating manner, so that the lamination effect of the finally laminated laminate is better, the linkage among mechanisms is realized, and the working efficiency of the device is improved; avoid being stained with the emergence of attaching behind the surface parcel centrifugal paper through gear 13 to the life of gear 13 and the work efficiency of device have been improved, evenly be equipped with a set of No. five gasbags 19 through being located the conveying roller 2 bottoms in first compression roller 3 outside, through passing through the gas pocket blowout with the gas of No. five gasbags 19 internal compression, can provide the buffering for the plywood on the one hand, on the other hand cooling adhesive, and then make the plywood design efficiency improve.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A method for improving the strength of plywood is characterized by comprising the following steps:
s1: placing the single-layer plate on a vibrating machine for coating an adhesive;
s2: saw dust is added to the single-layer board glue layer which is coated in the S1;
s3: superposing the single-layer plates in the step S2 and conveying the single-layer plates into a pre-pressing device for pressing;
s4: bending the laminated board pressed in the S3 in solid wood bending equipment;
s5: pressing the laminate bent in the step S4 again;
the prepressing device comprises a rack (1), conveying rollers (2), a first pressing roller (3), a second pressing roller (4) and side pressing rollers (5), wherein a group of conveying rollers (2) are uniformly arranged at the bottom of the rack (1), a rotating shaft is arranged at the center of each conveying roller (2), and the rotating shaft is rotatably connected with the rack (1); two side compression rollers (5) are symmetrically arranged in the middle of the upper part of the rack (1), a first compression roller (3) is arranged on one side of each side compression roller (5), a second compression roller (4) is arranged on the other side of each side compression roller (5), and two ends of each first compression roller and two ends of each second compression roller are rotatably connected with the rack; the top of the rack (1) is provided with a limiting rod (6); a vertical first limiting groove (7) is formed in the limiting rod (6), a circular ring (71) is arranged in the first limiting groove (7), the upper end of the circular ring (71) is connected to the top of the first limiting groove (7) through a spring, a first air bag (72) is arranged below the circular ring (71), and the circular ring (71) is sleeved on the first guide rod (8); a power module (9) is arranged on the outer side of the limiting rod (6), the power module (9) is connected with one end of the first guide rod (8), and the power module (9) is used for pushing the side pressing roller (5) to vertically and horizontally move; the other end of the first guide rod (8) penetrates through the circular ring (71) and is connected in the cylindrical groove on the left side of the sleeve (10) in a sliding mode, one end of the second guide rod (11) on the other side is connected in the cylindrical groove on the right side of the sleeve (10) in a sliding mode, and the cylindrical grooves on the two sides are not communicated with each other; the first guide rod (8) and the second guide rod (11) are fixedly connected with a fixed block (12), and two ends of the side pressing roller (5) are rotatably connected with the fixed block (12); wherein,
the power module (9) comprises a motor (91), a first air cylinder (92), a rotary disc (93) and a connecting rod (94), the motor (91) is fixedly installed on the side wall of the rack (1), an output shaft of the motor (91) is fixedly connected with the first air cylinder (92), the end head of the first air cylinder (92) is fixedly connected with the rotary disc (93), and an air cavity of the first air cylinder (92) is communicated with the first air bag (72); one end of the connecting rod (94) is connected with the rotary table (93), and the other end of the connecting rod is hinged with the first guide rod (8); and two ends of the conveying roller (2) are sleeved with a gear (13).
2. A method of increasing plywood strength according to claim 1, wherein: a second limiting groove (14) is formed in the side wall of the bottom of the rack (1), a limiting plate (141) is arranged in the second limiting groove (14), one end of the limiting plate (141) is connected to the top of the second limiting groove (14) through a spring, and a second air bag (142) is arranged at the other end of the limiting plate (141); one end of a conveying roller (2) positioned at the outermost side of the first pressing roller (3) penetrates through a limiting plate (141) to be connected with the disc (15), and the other end of the conveying roller is rotatably connected with the other opposite limiting plate (141); one end of the disc (15) is connected with the end of a second cylinder (16), the second cylinder (16) is communicated with the cylindrical grooves on the two sides of the sleeve (10), and the second cylinder (16) is used for pushing the disc (15) to rotate periodically.
3. A method of increasing plywood strength according to claim 2, wherein: first sliding units (17) are symmetrically arranged at two ends of the first pressing roller (3), each sliding unit (17) comprises a third air cylinder (171), a first sliding block (172) and a third air bag (173), an air cavity of the third air cylinder (171) is communicated with the second air bag (142), and the first sliding blocks (172) are slidably mounted on the rack (1) on two sides of the first pressing roller (3); two ends of the first press roller (3) are respectively and rotatably connected with first sliding blocks (172) on two sides, one side of each first sliding block (172) is connected with the end of a third air cylinder (171), and a third air bag (173) is arranged on the other side of each first sliding block; the first sliding block (172) can slide in a reciprocating manner under the pushing of a third air cylinder (171); two ends of the second pressing roller (4) are provided with second sliding units (18), each second sliding unit (18) comprises a fourth air cylinder (181), a second sliding block (182) and a fourth air bag (183), an air cavity of the fourth air cylinder (181) is communicated with the third air bag (173), the frames (1) on two sides of the second pressing roller (4) are respectively provided with the first sliding blocks (182) in a sliding mode, two ends of the second pressing roller (4) are respectively connected with the second sliding blocks (182) on two sides in a rotating mode, one side of each second sliding block (182) is connected with the fourth air cylinder (181), and the other side of each second sliding block (182) is provided with the fourth air bag (183); the fourth air bag (183) is communicated with an air channel arranged on the side pressure roller (5).
4. A method of increasing plywood strength according to claim 1, wherein: centrifugal paper is wrapped on the surface of the gear (13) and used for preventing the gear from being adhered with an adhesive.
5. A method of increasing plywood strength according to claim 2, wherein: a group of air bags (19) are arranged at the bottom of the conveying roller (2) located on the outermost side of the first pressing roller (3) and used for buffering the pressure when the conveying roller (2) moves downwards.
6. The method of increasing plywood strength of claim 5, wherein: the cross section of the conveying roller (2) is annular, circumferential air holes are uniformly formed in the surface of the conveying roller (2), and the air holes are communicated with a fifth air bag (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051343.5A CN109176759A (en) | 2018-09-10 | 2018-09-10 | A method of improving Strength of Plywood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051343.5A CN109176759A (en) | 2018-09-10 | 2018-09-10 | A method of improving Strength of Plywood |
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| CN109176759A true CN109176759A (en) | 2019-01-11 |
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| CN201811051343.5A Pending CN109176759A (en) | 2018-09-10 | 2018-09-10 | A method of improving Strength of Plywood |
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Cited By (1)
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| CN115923313A (en) * | 2023-01-18 | 2023-04-07 | 宿迁市京沪木业有限公司 | Plate positioning device and positioning method of plate production pressing equipment |
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