CN114249131A

CN114249131A - Automatic bamboo curtain stacking system and method adopting impregnation and secondary drying

Info

Publication number: CN114249131A
Application number: CN202111326644.6A
Authority: CN
Inventors: 俞艳; 俞先禄; 魏信森; 王永闽; 郑忠福; 林上禄; 俞道铭; 李仁茂; 罗章华; 何海军
Original assignee: Fujian Heqichang Resin Technology Co ltd; Fujian Heqizu Forestry Technology Co ltd; Fujian Heqichang Bamboo Co ltd
Current assignee: Fujian Heqichang Resin Technology Co ltd; Fujian Heqizu Forestry Technology Co ltd; Fujian Heqichang Bamboo Co ltd
Priority date: 2021-11-10
Filing date: 2021-11-10
Publication date: 2022-03-29
Anticipated expiration: 2041-11-10

Abstract

The invention provides a glue dipping secondary drying bamboo curtain automatic stacking system and a method, comprising the following steps: the hanger chain type conveyor comprises a lifting hook, wherein the lifting hook is used for lifting the impregnated secondary drying bamboo curtain; the curtain-removing crosspiece is fixedly arranged at the outlet position of the hanger chain type conveyor; the first lifter is positioned below the curtain-off crosspiece; the bamboo curtain stacking frame can be placed at the top of the first lifter; the supporting seat is positioned below the hanger chain conveyor; damping plate controlling means, including the damping plate with first drive actuating cylinder, the flexible end that first drives actuating cylinder is articulated with the downside of damping plate, the first cylinder body that drives actuating cylinder is articulated with the supporting seat, the one end and the supporting seat of damping plate are articulated. The invention has the advantages that: the gum dipping secondary drying bamboo curtains on the lifting hooks are laid on the bamboo curtain stacking frame in sequence, automatic curtain collecting, laying and stacking are achieved, labor intensity of workers is reduced, unnecessary material moving and laying and transferring work is reduced, workers only need to check the quality problem of curtain collecting and laying, and production efficiency is improved.

Description

Automatic bamboo curtain stacking system and method adopting impregnation and secondary drying

Technical Field

The invention relates to the technical field of bamboo curtain stacking, in particular to an automatic bamboo curtain stacking system and method adopting gum dipping and secondary drying.

Background

The traditional container bottom plate, cement mould and plywood are mostly made of large-diameter log materials, and are formed by rotary cutting logs into wood veneers, drying the wood veneers, applying adhesive, paving and pressing the wood veneers in a criss-cross mode according to wood grains. Because the large-diameter log is exhausted by imminent, the bamboo-wood composite material plate is used for replacing the large-diameter log in the prior production. The bamboo-wood composite material is a composite board or a square timber which is formed by combining and gluing bamboo and wood in the same or different structural unit forms. The combination form of the bamboo-wood composite material is various, such as bamboo mat or bamboo curtain-wood veneer, bamboo-wood composite plywood, bamboo-wood composite laminated material, bamboo-wood composite shaving board and medium density fiberboard, bamboo-wood strip oriented material and the like. The materials are classified into two categories, namely structural bamboo-wood composite materials and functional bamboo-wood composite materials.

Bamboo is a characteristic resource in China, and the area of the domestic bamboo forest reaches 500 kilohm²The annual total yield of bamboo wood is more than 1900 ten thousand tons, which is equivalent to more than 1000 ten thousand meters³The wood of (2). The bamboo material has the advantages of high strength and good toughness. The fast-growing tree species generally take 10-15 years to become timber, and the bamboo becomes timber for 3-5 years, and once afforestation succeeds, and selective felling is carried out every year for continuous utilization. Since 1990, a large number of technical personnel engaged in the research of bamboo-wood composite materials also published a batch of bamboo-wood composite material preparation methods and bamboo curtain assembly production technologies, but secondary low-temperature drying curtain releasing and collecting devices of bamboo curtains are not researched and are not reported in documents.

The production process of the existing bamboo-based radial curtain container bottom plate comprises the following steps: bamboo mat and bamboo curtain → drying → gumming → secondary drying → assembling with wood veneer and the like → hot-press gluing → cutting edge, grading and packaging. A suspension type tunnel kiln for secondary drying of a dipped bamboo curtain of the existing production system is internally provided with a heating system consisting of a group of steam radiators and fans and a bamboo curtain hanger chain type conveyor. A cross rod is connected to chains on two sides of the hanger chain type conveyor, the cross rods are arranged at intervals, three lifting hooks are arranged on the cross rods, a dipped bamboo curtain raw material is hung by the three lifting hooks to move rightwards at a constant speed, a dipped secondary drying bamboo curtain is obtained after passing through a heating system inside the kiln, and then the bamboo curtain is put down at an outlet of a dipped bamboo curtain secondary drying suspension type tunnel kiln (the bamboo curtain is put down manually or automatically in a blocking mode).

The bamboo curtain stacking at the outlet of the gum dipping bamboo curtain secondary drying suspension type tunnel kiln adopts manual curtain placing and manual curtain collecting work, two workers finish curtain collecting work, one worker stands at each of the left side and the right side of the bamboo curtain stacking platform, and the two workers assist in neatly arranging the bamboo curtains on a bamboo curtain stacking frame of the bamboo curtain stacking platform by means of an inclined belt conveyor, so that the mode has the defects of large amount of labor power and high labor intensity. Because the bamboo curtain dipped with the phenolic resin glue is applied with the phenolic resin glue, after secondary low-temperature drying, the tail gas generated by drying the bamboo curtain with the glue is discharged, a large amount of free aldehyde and free phenol are filled in the working environment, the working environment condition is poor, the working condition is severe, the labor intensity of workers is high, and tens of tons of bamboo curtain raw materials need to be moved up and down every day. To date, no document is reported on an automatic bamboo curtain stacking production line.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic bamboo curtain stacking system and method with secondary drying after gum dipping, so that the labor intensity of the bamboo curtain stacking process with secondary drying after gum dipping is reduced, and the production efficiency is improved.

The invention is realized by the following steps:

the utility model provides an automatic stacking system of gumming secondary drying bamboo curtain, includes:

the hanger chain type conveyor comprises a lifting hook, and the lifting hook is used for lifting the impregnation secondary drying bamboo curtain;

the curtain-removing crosspiece is fixedly arranged at the outlet position of the hanger chain type conveyor;

the two blowpipe nozzles are fixedly arranged on two sides of the hanger chain type conveyor respectively and are positioned below the curtain removing crosspiece;

a first lift located below the curtain shedding ledge;

the bamboo curtain stacking frame can be placed at the top of the first lifter;

the supporting seat is positioned below the hanger chain conveyor;

damping plate controlling means, including damping plate and the first actuating cylinder that drives, the first flexible end that drives actuating cylinder with the downside of damping plate is articulated, the first cylinder body that drives actuating cylinder with the supporting seat is articulated, the one end of damping plate with the supporting seat is articulated, the damping plate is used for contacting with the bottom of the dry bamboo curtain of gumming secondary.

Further, still include:

the first height sensor is used for detecting the curtain laying height of the bamboo curtain stacking frame;

the second height sensor is used for detecting the stacking height of the bamboo curtain stacking frame;

an electrical control system electrically connected to the first elevation sensor, the second elevation sensor, and the first lift.

Further, still include:

the initial position detection sensor is used for detecting that the bamboo curtain buck stacker reaches an initial position;

a distance measuring sensor for measuring a distance from a top of the first lifter to a ground surface;

the initial position detection sensor and the distance measurement sensor are also electrically connected with the electric control system.

Further, still include:

the bamboo curtain stacking frame conveyor comprises a conveying platform and a first rail, wherein the conveying platform is provided with a side hole, the conveying platform is movably connected with the first rail, and the first rail is fixedly connected with the right side of the supporting seat;

the first lifter comprises a small lifting platform which can penetrate through the side hole.

Further, the bamboo curtain buck conveyor also comprises:

the first limiting rod is positioned at the front end of the transportation platform and driven by the telescopic end of the first limiting cylinder;

and the second limiting rod is positioned at the rear end of the transportation platform and is driven by the telescopic end of the second limiting cylinder.

Further, still include:

the bamboo curtain stacking rack feeding machine comprises a first chain and a raised scraper, wherein the raised scraper is fixedly connected with the first chain, and an outlet of the bamboo curtain stacking rack feeding machine is aligned with an inlet of the bamboo curtain stacking rack conveyor;

the bamboo curtain stacker current-limiting baffle is positioned at the upper left of the bamboo curtain stacker frame entering machine, and a frame entering channel is arranged between the bottom end of the bamboo curtain stacker frame current-limiting baffle and the first chain;

and the bamboo curtain buck stacker guard plate is positioned at the upper right part of the bamboo curtain buck frame feeding machine and is driven by the telescopic end of the second driving cylinder.

Further, still include:

the bamboo-wood composite slat conveyor comprises a second chain, wherein the second chain is provided with a groove part, and the groove part is used for receiving bamboo-wood composite slats;

the bamboo-wood composite lath throwing machine comprises a rack, rollers, a lath orientation box, a pinch roller and a third driving cylinder, wherein the rollers are rotatably connected with the rack and are arranged at intervals, one end of each roller is in a conical shape, the pinch roller and the third driving cylinder are both positioned above the rack, the pinch roller is rotatably connected with the telescopic end of the third driving cylinder, and the lath orientation box is fixedly connected with the rack and is provided with an orientation hole;

the second chain penetrates through the two rollers, and the bamboo-wood composite batten throwing and conveying machine is located above the bamboo curtain stacking rack conveyor.

Further, still include:

the middle of the supporting platform is provided with a first through hole and is adjacent to the bamboo-wood composite slat conveyor;

a second lifter, a top of the second lifter being capable of passing through the first through-hole;

the strip pushing machine comprises a second rail, a push rod and a first strip detection sensor, the second rail is located above the supporting platform, the top of the push rod is movably connected with the second rail, and the first strip detection sensor is fixedly connected with the bottom of the push rod;

the bamboo-wood composite slat limiting baffle and the partition plate are positioned in front of the supporting platform, and a slat feeding channel is arranged between the bottom end of the bamboo-wood composite slat limiting baffle and the bamboo-wood composite slat conveyor;

the batten frame is placed on the supporting platform, a batten tray is arranged inside the batten frame, the batten tray can move up and down along the inner wall of the batten frame, a second through hole is formed in the bottom of the batten frame, and the top of the second lifter can penetrate through the second through hole.

An automatic stacking method for gum dipping secondary drying bamboo curtains comprises the following steps:

step 1, a bamboo curtain stacking frame feeding machine transmits a bamboo curtain stacking frame to a bamboo curtain stacking frame conveyor, and the bamboo curtain stacking frame conveyor conveys the bamboo curtain stacking frame to the upper part of a first lifter;

step 2, the first lifter moves upwards to jack up the bamboo curtain stacking frame;

step 3, hanging the gum dipping secondary dried bamboo curtain by a lifting hook of the hanger chain type conveyor and moving the bamboo curtain to the direction of the first lifter;

step 4, the bottom end of the bamboo curtain subjected to the secondary gum dipping drying is inclined after contacting a damping plate, then the top end of the bamboo curtain subjected to the secondary gum dipping drying is separated from a lifting hook after contacting a curtain separating crosspiece, and then the bamboo curtain subjected to the secondary gum dipping drying falls down and is laid on the bamboo curtain stacking frame to form curtain laying work;

step 5, if the stacking height of the bamboo curtain stacking frame does not reach the preset maximum height, directly turning to step 6; if the stacking height of the bamboo curtain stacking frame reaches the preset maximum height, stopping curtain laying, moving the first lifter downwards to place the bamboo curtain stacking frame on the bamboo curtain stacking frame discharging machine, and turning to the step 7;

step 6, if the curtain laying height of the bamboo curtain buck frame exceeds the preset optimal height, stopping curtain laying, moving the first lifter downwards for the same distance as the preset optimal height, and then turning to the step 3 to continue curtain laying; if the curtain laying height of the bamboo curtain buck does not exceed the preset optimal height, directly turning to the step 3;

and 7, finally, the bamboo curtain stacking frame is transported out by the bamboo curtain stacking frame transporting machine.

Further, the step 5 specifically includes: if the stacking height of the bamboo curtain stacking frame does not reach the preset maximum height, turning to the step 5-1; if the stacking height of the bamboo curtain stacking frame reaches the preset maximum height, stopping curtain laying, moving the first lifter downwards to place the bamboo curtain stacking frame on the second bamboo curtain stacking frame conveyor, and turning to the step 7;

step 5-1, stopping curtain paving if the stacking height of the bamboo curtain stacking frame reaches a preset layering height, then jacking a batten tray in a batten frame by a second lifter, enabling a layer of bamboo-wood composite battens to emerge from the top of the batten frame, pushing the bamboo-wood composite battens into a bamboo-wood composite batten conveyor by a strip pushing machine, conveying the bamboo-wood composite battens to a bamboo-wood composite batten throwing and sending machine by the bamboo-wood composite batten conveying machine, enabling the first lifter to move downwards for a distance equal to the thickness of one bamboo-wood composite batten, then throwing the bamboo-wood composite battens to the bamboo curtain stacking frame on the first lifter by the bamboo-wood composite batten throwing and sending to the step 6; and if the stacking height of the bamboo curtain buck stacker does not reach the preset layering height, directly switching to the step 6.

The invention has the advantages that: 1. the bamboo curtains subjected to gum dipping and secondary drying on the lifting hooks are laid on the bamboo curtain stacking frame in sequence, automatic curtain collecting, laying and stacking are achieved, labor intensity of workers is reduced, unnecessary material moving and laying and transferring work is reduced, workers only need to check the quality problem of curtain collecting and laying, manual intervention is conducted, the bamboo curtains are pushed and laid neatly, and production efficiency is improved. 2. According to the detected curtain laying height of the bamboo curtain stacking frame, the height of the first lifter is adjusted in real time, the laying of each bamboo curtain is ensured to be in the optimal height range, and the uniformity of bamboo curtain stacking is effectively improved. 3. The air blowing of the blowing pipe nozzle enables the bamboo curtain which is dipped in glue and dried for the second time to be laid on the bamboo curtain stacking frame more quickly. 4. The first bamboo curtain stacking frame conveyor conveys the empty bamboo curtain stacking frames, and the second bamboo curtain stacking frame conveyor conveys the stacked bamboo curtain stacking frames. 5. The first limiting rod and the second limiting rod play a role in stably transporting the bamboo curtain stacking rack. 6. And putting the stacked empty bamboo curtain stacking frames into a bamboo curtain stacking frame feeding machine, and feeding the empty bamboo curtain stacking frames into a first bamboo curtain stacking frame conveyor one by one. 7. The bamboo-wood composite lath throwing machine is used for throwing the bamboo-wood composite laths to the bamboo curtain stacking frame, the bamboo-wood composite laths are separated into the upper layer and the lower layer of the impregnated secondary dried bamboo curtains by matching with the lifting adjustment of the first lifter, the layered stacking of the impregnated secondary dried bamboo curtains is realized, and the ventilation and the balance and stability of the water content of the impregnated secondary dried bamboo curtains during aging are ensured. 8. The bamboo-wood composite battens in the batten frames sequentially enter the bamboo-wood composite batten conveyer and are then conveyed to the bamboo-wood composite batten throwing machine to be produced in order.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an automatic stacking system of a gum dipping secondary drying bamboo curtain of the invention.

Fig. 2 is a structural schematic diagram II of the gum dipping secondary drying bamboo curtain automatic stacking system.

Fig. 3 is a schematic illustration of the position of the curtain shedding bar and spreader chain conveyor of the present invention.

Fig. 4 is a schematic top view of the automatic stacking system of the gum dipping secondary drying bamboo curtain of the invention.

Fig. 5 is a schematic structural view of the damper plate control device of the present invention.

Fig. 6 is a schematic diagram of the position of the raised scraper in the bamboo curtain stacking and frame entering machine in the invention.

FIG. 7 is a schematic structural view of a bamboo curtain stacker crane according to the present invention.

FIG. 8 is a schematic diagram of the positions of the bamboo curtain stillage transporter and the small lifting platform of the present invention.

Fig. 9 is a schematic position diagram of the small lifting platform and the bamboo curtain buck stacker of the invention.

Fig. 10 is a schematic position diagram of a bamboo strip pushing machine, a second lifter, a bamboo curtain buck stacker frame entering machine and a bamboo curtain buck frame exiting machine in the invention.

Fig. 11 is a schematic position diagram of the bamboo-wood composite slat throwing machine and the bamboo-wood composite slat conveyor in the present invention.

Fig. 12 is a schematic structural view of the bamboo-wood composite slat throwing machine of the present invention.

Fig. 13 is a schematic view of the bamboo-wood composite slat of the present invention before it enters the drum.

FIG. 14 is a schematic view of the bamboo-wood composite slat of the present invention in contact with the tapered body of the drum.

FIG. 15 is a schematic view of a bamboo-wood composite slat of the present invention placed on a roller.

Fig. 16 is a schematic position diagram of the slat frame and bamboo wood composite slat conveyor of the present invention.

Fig. 17 is a schematic view of the position of the support platform, the slat frame, and the second lift of the present invention.

Fig. 18 is a schematic view showing a stressed state of the twice-dried bamboo curtain after gum dipping in the invention.

Fig. 19 is a schematic view showing a stressed state of the secondary impregnated dry bamboo curtain of the present invention.

Fig. 20 is a schematic view of the first lifter in the initial position in the present invention.

Fig. 21 is a schematic view of the first height sensor detecting the bamboo curtain in the present invention.

Fig. 22 is a schematic view illustrating that the first lift moves downward by the same distance as the preset optimal height in the present invention.

FIG. 23 is a schematic view of the layered stacking of bamboo curtain stillage in accordance with the present invention.

FIG. 24 is a schematic view of a bamboo curtain stillage detected by a second height sensor in accordance with the present invention.

Reference numerals:

a secondary drying suspension type tunnel kiln 1 of the impregnated bamboo curtain; a hanger chain conveyor 11; a chain 111; a cross bar 112; a hook 113; gumming the bamboo curtain 12 for the second time; a curtain-off rail 13; a blowpipe nozzle 14;

a first lifter 2; a small-sized elevating platform 21; an initial position detection sensor 22; a distance measuring sensor 23;

a bamboo curtain stacking frame 3; a support base 4; a damper plate control device 41; a damping plate 411; a first drive cylinder 412; a first height sensor 42; a second height sensor 43;

a bamboo curtain stacking rack conveyor 5; a transport platform 51; the side holes 511; a wheel 512; a first stopper rod 513; a first limit cylinder 514; a second gag lever post 515; a second spacing cylinder 516; a first rail 52;

the bamboo curtain stacking frame enters a frame machine 6; a first chain 61; a raised scraper 62; a bamboo curtain buck stacker current-limiting baffle 63; a rack entry channel 631; a bamboo curtain buck guard 64; a second drive cylinder 65;

a bamboo curtain stacking and frame discharging machine 7; a conveying chain 71; a bamboo curtain stacker rack in-place detection sensor 72;

a bamboo-wood composite slat conveyor 8; a second chain 81; a groove member 82;

a bamboo-wood composite lath throwing machine 9; a frame 91; a position sensor 911; a drum 92; a cone 921; a slat orienting box 93; a directional aperture 931; pinch rollers 94; a third driving cylinder 95;

a support platform 10; a first through hole 101; a slat frame 102; a second through hole 1021; a slat tray 103; bamboo-wood composite slats 104; a friction bar 105; a second lifter 20; a strip pushing machine 30; a second track 301; a push rod 302; a first slat detection sensor 303; a bamboo-wood composite lath limit baffle 40; a slat entry passage 401; a second slat detection sensor 402; a partition 403.

Detailed Description

The embodiment of the invention provides an automatic stacking system and method for gum dipping secondary drying bamboo curtains, overcomes the defect of high labor intensity of manual stacking of gum dipping secondary drying bamboo curtains in the prior art, and achieves the technical effect of improving the production efficiency by automatic stacking.

In order to solve the above disadvantages, the technical solution in the embodiment of the present invention has the following general idea: the lifting hook of the hanger chain type conveyor is used for hanging the impregnation secondary drying bamboo curtain, in the transportation process, the impregnation secondary drying bamboo curtain positioned in front inclines after the bottom end of the bamboo curtain is touched with the damping plate, the bamboo curtain is separated from the lifting hook after the top end of the bamboo curtain is touched with the curtain-separating crosspiece, the impregnation secondary drying bamboo curtain falls down and is laid on the bamboo curtain stacking frame, and then the impregnation secondary drying bamboo curtain is sequentially laid on the bamboo curtain stacking frame to realize automatic stacking.

For better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.

Referring to fig. 1 to 24, a preferred embodiment of the present invention.

The utility model provides an automatic stacking system of gumming secondary drying bamboo curtain, includes: the hanger chain type conveyor 11 comprises a hook 113, and the hook 113 is used for hanging the secondary drying bamboo curtain 12 after gum dipping; the hanger chain conveyor 11 is located in the impregnation bamboo curtain secondary drying suspension type tunnel kiln 1, a cross rod 112 is connected to chains 111 on two sides of the hanger chain conveyor 11, the cross rods 112 are arranged at intervals, three lifting hooks 113 are arranged on the cross rod 112, and a impregnated bamboo curtain raw material is hung by the three lifting hooks 113 to move rightwards at a constant speed. In the preparation stage, at the inlet of the hanger chain conveyor 11, the worker gradually lifts the dipped wet bamboo curtains one by using the lifting hook 113, then the hanger chain conveyor 11 conveys the dipped wet bamboo curtains into the tunnel kiln for secondary drying, and the formed dipped secondary dried bamboo curtains 12 move rightwards at a constant speed and are conveyed to the outlet of the hanger chain conveyor 11.

With reference to fig. 1 to 3, a curtain-removing rung 13 is fixedly mounted at the outlet of the spreader chain conveyor 11; when the hook 113 passes the curtain off rail 13 at the exit position of the hanger chain conveyor 11, the dipped secondary dried bamboo curtain 12 is separated from the hook 113 after being stopped by the curtain off rail 13. A first lift 2 located below the curtain shedding bar 13; the bamboo curtain stacking frame 3 can be placed at the top of the first lifter 2; the first lifter 2 adjusts the lifting position of the bamboo curtain buck 3.

A support base 4 located below the hanger chain conveyor 11; with reference to fig. 1, fig. 2 and fig. 5, the damping plate control device 41 includes a damping plate 411 and a first driving cylinder 412, the telescopic end of the first driving cylinder 412 is hinged to the lower side surface of the damping plate 411, the cylinder body of the first driving cylinder 412 is hinged to the supporting seat 4, one end of the damping plate 411 is hinged to the supporting seat 4, and the damping plate 411 is used for contacting with the bottom end of the twice-dried bamboo curtain 12 after gum dipping. The damping plate 411 is made of damping materials such as rubber; the surface of the damping plate 411 is wavy.

In the process that the lifting hook 113 hangs the gumming secondary drying bamboo curtain 12 and moves rightwards, with reference to fig. 1, the first driving cylinder 412 controls the damping plate 411 to lift, the damping plate 411 is an inclined plane with a certain working angle, the angle is 40-70 degrees, and after the bottom end of the gumming secondary drying bamboo curtain 12 touches the damping plate 411, the gumming secondary drying bamboo curtain 12 tilts due to the friction effect with the damping plate 411. In the process that the lifting hook 113 moves to the upper part below the hanger chain type conveyor 11, the top end of the inclined gum dipping secondary dried bamboo curtain 12 is separated from the lifting hook 113 after contacting the curtain separating crosspiece 13, and the gum dipping secondary dried bamboo curtain 12 falls down and is laid on the bamboo curtain stacking rack 3 to form a laid curtain; and then, the bamboo curtains 12 are sequentially paved on a bamboo curtain stacking frame 3 by gum dipping and secondary drying, so that the automatic stacking of the bamboo curtains is realized.

With reference to fig. 20 to 24, an initial position detecting sensor 22 is configured to detect that the bamboo curtain buck stacker 3 reaches an initial position; a distance measuring sensor 23 for measuring a distance from the top of the first lifter 2 to the ground; a first height sensor 42 for detecting the curtain laying height of the bamboo curtain buck; a second height sensor 43 for detecting the stacking height of the bamboo curtain buck stacker; and an electrical control system electrically connected to the initial position detection sensor 22, the distance measurement sensor 23, the first height sensor 42, the second height sensor 43, and the first lifter 2. The initial position detection sensor 22, the first height sensor 42 and the second height sensor 43 are all fixed on the support base 4, and the initial position detection sensor 22, the first height sensor 42 and the second height sensor 43 can also be photoelectric sensors or distance sensors. The distance measuring sensor 23 is fixedly arranged on the top of the first lifter 2. Firstly, a bamboo curtain stacking frame 3 on a first lifter 2 is at an initial position, and the position is the optimal height position of a curtain; at the moment, the gum-dipped secondary dried bamboo curtains 12 sequentially fall down and are paved on the bamboo curtain buck stacker 3, and as the number of the bamboo curtains on the bamboo curtain buck stacker 3 increases, when the first height sensor 42 detects the bamboo curtains, a signal is sent to the electric control system, which indicates that the paving height of the bamboo curtain buck stacker 3 exceeds the preset optimal height range; the electric control system controls the hanger chain conveyor 11 to stop running, namely, stop curtain laying, and then controls the first lifter 2 to move downwards, the moving distance is the same as the preset optimal height, at the moment, the uppermost bamboo curtain of the bamboo curtain buck frame 3 reaches the detection position of the initial position detection sensor 22, and then the hanger chain conveyor 11 is restarted to continue curtain laying. If the first lifter 2 moves downwards and the moving distance is the same as the preset optimal height, the uppermost bamboo curtain of the bamboo curtain buck 3 reaches the detection position of the initial position detection sensor 22, the time used for the bamboo curtain horizontal moving distance is shorter than the time used for the distance between two hung bamboo curtains, and the hanger chain conveyor 11 can not stop operating. Therefore, the laying of each bamboo curtain is ensured to be in the optimal height position range, and the stability of the bamboo curtain stacking is effectively improved. With the continuous descending of the first lifter 2, when the second height sensor 43 detects that the stacking height of the bamboo curtain buck stacker 3 reaches the preset maximum height, that is, when the second height sensor 43 detects the top of the first lifter 2 or the bamboo curtain buck stacker 3, the curtain spreading is stopped, and the first lifter 2 moves downwards to place the bamboo curtain buck stacker 3 on the bamboo curtain buck stacker rack discharging machine 7.

With reference to fig. 1 to 3, two blowpipe nozzles 14 are respectively and fixedly disposed at two sides of the hanger chain conveyor 11 and above the first lifter 2, and the blowing direction of the blowpipe nozzle 14 faces the left side surface of the impregnation secondary drying bamboo curtain 12. At the moment that the bamboo curtain 12 is separated from the lifting hook 113, the blowing pipe nozzle 14 is opened to spray a strand of gas to the left side surface of the bamboo curtain 12, the speed of the bamboo curtain is adjusted, and the bamboo curtain is laid towards the bamboo curtain stacker 3 below by combining the self gravity of the bamboo curtain and laid on the bamboo curtain stacker 3. The air blowing of the blowpipe nozzle 14 enables the dipped secondary dried bamboo curtain 12 to be better laid on the bamboo curtain stacking rack 3.

With reference to fig. 7 and 8, the bamboo curtain buck stacker conveyor 5 includes a conveying platform 51 and a first rail 52, the conveying platform 51 is provided with a side hole 511, the conveying platform 51 is movably connected with the first rail 52, and the first rail 52 is fixedly connected with the right side of the supporting seat 4; the transportation platform 51 has four wheels 512, the first rails 52 have two, the four wheels 512 are respectively located on the two first rails 52, and the transportation platform 51 moves the bamboo curtain buck 3 to the left along the first rails 52 to the upper side of the first elevator 2 under the driving of the four wheels 512.

The first lifter 2 includes a small lifting platform 21, and the small lifting platform 21 can pass through the side hole 511. Specifically, there are three small lifting platforms 21, and correspondingly there are three side holes 511, and the three small lifting platforms 21 are moved up and down between the two first rails 52. When the bamboo curtain stacker crane 5 transports the empty bamboo curtain stacker frame 3 to the upper side of the small-sized lifting platform 21, the small-sized lifting platform 21 rises to pass through the side hole 511 of the transport platform 51 in the bamboo curtain stacker crane 5, so as to jack up the bamboo curtain stacker frame 3, and then the bamboo curtain stacker crane 5 retreats to receive the next empty bamboo curtain stacker frame 3.

The bamboo curtain buck conveyor 5 further comprises: a first limit rod 513, which is located at the front end of the transportation platform 51 and is driven by the telescopic end of the first limit cylinder 514; and the second limiting rod 515 is positioned at the rear end of the transportation platform 51 and is driven by the telescopic end of the second limiting cylinder 516. An empty bamboo curtain buck 3 enters a transportation platform 51 of the bamboo curtain buck conveyor 5 from the bamboo curtain buck frame entering machine 6 at a certain inertia speed, a sensor such as a photoelectric sensor arranged on the transportation platform 51 detects the bamboo curtain buck 3, a control system controls a first limiting cylinder 514 to act, a first limiting rod 513 rises to prevent the bamboo curtain buck 3 from moving leftwards continuously; after the single bamboo curtain buck stacker 3 runs in place, the second limiting cylinder 516 acts, and the second limiting rod 515 rises to block the rightward rebound movement of the bamboo curtain buck stacker 3. The first stopper 513 and the second stopper 515 function to stably transport the bamboo curtain buck 3.

With reference to fig. 1, 2, 4 and 6, the bamboo curtain buck stacker 6 includes a first chain 61 and a protruding scraper 62, the protruding scraper 62 is fixedly connected to the first chain 61, and an outlet of the bamboo curtain buck stacker 6 is aligned with an inlet of the bamboo curtain buck conveyor 5; the raised scraper 62 is used to push the bamboo curtain stillage 3 at the bottom layer into the transport platform 51. A bamboo curtain stacker current-limiting baffle 63 located at the upper left of the bamboo curtain stacker carrier entering machine 6, wherein a carrier entering channel 631 is formed between the bottom end of the bamboo curtain stacker current-limiting baffle 63 and the first chain 61, and the carrier entering channel 631 accommodates one bamboo curtain stacker carrier 3; the bamboo curtain buck frame guard plate 64 is positioned at the upper right of the bamboo curtain buck frame entering machine 6 and is driven by the telescopic end of a second driving cylinder 65; the bamboo curtain stacker guard plate 64 prevents the stacked bamboo curtain stacker 3 from toppling to the right. The stacked empty bamboo curtain buck 3 is put in a first chain 61 of a bamboo curtain buck entering machine 6, then a second driving cylinder 65 controls a bamboo curtain buck guard plate 64 to move downwards, the bamboo curtain buck entering machine 6 starts to operate after receiving a buck entering instruction of an electrical control system, and a raised scraper plate 62 scrapes the bamboo curtain buck 3 at the bottommost layer to move leftwards under the driving of the first chain 61, and due to the blocking of a bamboo curtain buck baffle plate, the bamboo curtain buck 3 at the bottommost layer can only be pushed to a transportation platform 51 of a bamboo curtain buck conveyor 5 waiting at the left side each time. The protruding scraper 62 stops after the first chain 61 returns to the start position, and waits for the next carriage advance command.

With reference to fig. 1, 2 and 9, the bamboo curtain buck stacker 7 is located below the bamboo curtain buck stacker conveyor 5; the bamboo curtain stacking rack frame inlet machine 6 of the bamboo curtain stacking rack frame outlet machine 7 is the same; the positions of the bamboo curtain buck stacker 7 and the first lifter 2 are shown in fig. 9; when the stacking height of the bamboo curtain stacking frame 3 of the small lifting platform 21 reaches the preset maximum height, the bamboo curtain stacking frame 3 which completes stacking is obtained, the small lifting platform 21 descends to place the bamboo curtain stacking frame 3 on the conveying chain 71 of the bamboo curtain stacking frame rack discharging machine 7, the conveying chain 71 conveys the bamboo curtain stacking frame 3 out, the bamboo curtain stacking frame stops at the detection position of the bamboo curtain stacking frame in-place detection sensor 72, and the forklift is waited for transferring. Finally, the bamboo curtain stacking frame 3 is transported out.

With reference to fig. 10 to 15, the bamboo-wood composite slat conveyor 8 includes a second chain 81, the second chain 81 having a groove member 82, the groove member 82 being configured to receive the bamboo-wood composite slat 104; there are three groove members 82. The bamboo-wood composite lath throwing and conveying machine 9 comprises a rack 91, a plurality of rollers 92, a lath orienting box 93, a pinch roller 94 and a third driving cylinder 95, wherein the rollers 92 are rotatably connected with the rack 91 and are arranged at intervals, one end of each roller 92 is in a conical body 921, the pinch roller 94 and the third driving cylinder 95 are both positioned above the rack 91, the pinch roller 94 is rotatably connected with the telescopic end of the third driving cylinder 95, and the lath orienting box 93 is fixedly connected with the rack 91 and is provided with an orienting hole 931; the second chain 81 passes through the two rollers 92, and the bamboo-wood composite slat throwing and sending machine 9 is positioned above the bamboo curtain buck stacker conveyor 5. Because the bamboo curtain subjected to secondary drying has a certain temperature (70-90 ℃), in order to ensure ventilation and stable moisture content during aging of the bamboo curtain subjected to gum dipping and secondary drying, when the bamboo curtain of the bamboo curtain stacking frame 3 is laid to reach a certain thickness (height), such as 20-30 cm, three bamboo-wood composite battens 104 are required to be placed on the laid bamboo curtain for layering stacking. The bamboo-wood composite slat conveyor 8 is provided with two second chains 81, each second chain 81 is provided with three groove parts 82, each pair of groove parts 82 carries a bamboo-wood composite slat 104, the running second chains 81 carry the three bamboo-wood composite slats 104 to move to the rack 91 of the bamboo-wood composite slat throwing conveyor 9, the bamboo-wood composite slats 104 firstly contact one end of the conical body 921 of the roller 92 and then move to the outer side wall of the roller 92 along the conical body 921; at this point the bottom surface of the bamboo/wood composite slat 104 is disengaged from the bottom of the channel member 82, but the sides of the bamboo/wood composite slat 104 are also in contact with the channel member 82, and the bamboo/wood composite slat 104 is placed on the drum 92. A position sensor 911 is mounted on the frame 91 and when the bamboo/wood composite slat 104 is moved into the orientation aperture 931 of the aligned slat orienting box 93, the position sensor 911 detects the bamboo/wood composite slat 104 and sends a signal to the electrical control system which controls the bamboo/wood composite slat conveyor 8 to stop operating. Then the third driving cylinder 95 acts to drive the pinch roll 94 to press the bamboo-wood composite lath 104 downwards. When the laying thickness of the bamboo curtains of the bamboo curtain buck stacker 3 on the first lifter 2 reaches the preset stack separation height (20-30 cm), the first lifter 2 immediately moves downwards, and the movement amount is the thickness of one bamboo-wood composite lath. The bamboo-wood composite slat throwing machine 9 receives a starting-up operation command, the roller 92 rotates, and the three bamboo-wood composite slats 104 enter the slat orienting box 93 and are thrown onto the flattened bamboo curtain from the outlet of the orienting hole 931. And (3) continuously paving the bamboo curtain 12 after the secondary glue dipping and drying, thereby realizing layered stacking.

The detection mode of the stack separation height is as follows: presetting the stacking height to be H in an electrical control system₁Such as 20-30 cm; the first lifter 2 is provided with a distance measuring sensor 23 for measuring the distance from the top of the first lifter 2 to the ground and sending the lifting distance variation value to the electric control system. The position of the first lifter 2 after jacking up the bamboo curtain piler rack 3 of the bamboo curtain piler rack conveyor 5 is an initial position, and the height distance of the initial position is H₀(ii) a With the progress of curtain laying work, the first height sensor 42 detects the bamboo curtains on the bamboo curtain buck 3 for the first time, the electric control system starts to record the detection times, the detection times are set to be N, N is an integer, at the moment, N is 1, and the first lift is carried outThe elevator 2 moves downwards and the moving distance is the same as the preset optimal height which is H₂(ii) a Then, when the first height sensor 42 detects the bamboo curtains on the bamboo curtain buck rack 3 for the Nth time, the first elevator 2 moves downwards by NxH₂Is calculated to NxH in the electrical control system₂H or more₁Then, the electrical control system controls the first lifter 2 to move the thickness of the bamboo-wood composite strip downward, which is H₃(ii) a The bamboo-wood composite lath throwing machine 9 throws the bamboo-wood composite laths 104 onto the bamboo curtain stacking frame 3, and the electrical control system clears the parameter N. And (3) continuing the curtain spreading work, changing the first height sensor 42 into the bamboo curtain detected on the bamboo curtain buck 3 for the first time, and starting to record the detection times by the electric control system, so as to circulate until the second height sensor 43 detects that the stacking height of the bamboo curtain buck 3 reaches the preset maximum height.

With reference to fig. 10, 16, and 17, the present invention further includes: the middle of the supporting platform 10 is provided with a first through hole 101 and is adjacent to the bamboo-wood composite batten conveyor 8; a second lifter 20, a top of the second lifter 20 being capable of passing through the first through hole 101; the slitter 30 comprises a second rail 301, a push rod 302 and a first slat detection sensor 303, wherein the second rail 301 is positioned above the second lifter 20, the top of the push rod 302 is movably connected with the second rail 301, and the first slat detection sensor 303 is fixedly connected with the bottom of the push rod 302; the bamboo-wood composite slat limiting baffle plate 40 and the partition plate 403 are positioned in front of the supporting platform 10, a slat feeding channel 401 is arranged between the bottom end of the bamboo-wood composite slat limiting baffle plate 40 and the bamboo-wood composite slat conveyor 8, and the slat feeding channel 401 is used for accommodating one bamboo-wood composite slat 104 to pass through; the slat frame 102 is placed on the supporting platform 10, a slat tray 103 is disposed inside the slat frame 102, the slat tray 103 can move up and down along an inner wall of the slat frame 102, a second through hole 1021 is formed in the bottom of the slat frame 102, and the top of the second elevator 20 can pass through the second through hole 1021. The stacked bamboo-wood composite slats 104 are placed on the slat tray 103 in the slat frame 102, after the electrical control system sends out a slat providing instruction, the top of the second lifter 20 rises through the first through hole 101 and the second through hole 1021 to jack up the slat tray 103, the stacked bamboo-wood composite slats 104 move upwards, when the first slat detection sensor 303 detects that the bamboo-wood composite slat 104 located at the uppermost layer exceeds the slat frame 102, the second lifter 20 stops rising, and at this time, the bottom of the bamboo-wood composite slat 104 located at the uppermost layer exceeds the left and right side frame walls of the slat frame 102. The strip pushing machine 30 drives the push rod 302 to push away the uppermost bamboo-wood composite strip 104 step by step along the second track 301, the bamboo-wood composite strip 104 drops on the bamboo-wood composite strip conveyor 8 after touching the bamboo-wood composite strip limiting baffle 40 and is piled at the inlet of the strip feeding channel 401, along with the movement of the second chain 81, three bamboo-wood composite strips respectively drop on the three groove parts 82 of the second chain 81, and then pass through the strip feeding channel 401 again to reach the bamboo-wood composite strip throwing machine 9. The pusher 302 of the pusher 30 is retracted to the home position, and the first slat detecting sensor 303 does not detect that the bamboo-wood composite slat 104 protrudes out of the slat frame 102, and the electrical control system controls the second lifter 20 to jack the slat tray 103 upward again.

The second slat detection sensor 402 is installed at the entrance of the slat inlet channel 401, the number of the bamboo-wood composite slats 104 pushed out by the pusher 30 is sometimes more than three, when the three groove parts 82 are all provided with the bamboo-wood composite slats 104, no other bamboo-wood composite slats 104 fall into the groove parts 82, and the bamboo-wood composite slats 104 which do not fall into the groove parts 82 are too large in size to pass through the slat inlet channel 401 and are stacked at the entrance of the slat inlet channel 401. When the second slat detecting sensor 402 detects that there are bamboo-wood composite slats 104 at the entrance of the slat entry passage 401, the second lifter 20 does not move upward; when the second slat detecting sensor 402 detects that there is no bamboo-wood composite slat 104 at the entrance of the slat entry passage 401, the operation of the bamboo-wood composite slat conveyor 8 is stopped, the second lifter 20 moves upward to eject one layer of the bamboo-wood composite slat 104 from the slat frame 102, the push rod 302 of the pusher 30 pushes out the one layer of the bamboo-wood composite slat 104, and the bamboo-wood composite slat 104 falls on the entrance of the slat entry passage 401.

The operation principle of the present invention will be specifically described below with reference to the method.

step 1, the bamboo curtain stacking frame entering machine 6 sends the bamboo curtain stacking frame 3 to the bamboo curtain conveyer, and the bamboo curtain stacking frame conveyer 5 conveys the bamboo curtain stacking frame 3 to the upper part of the first lifter 2.

In the initial stage, a group of empty bamboo curtain buck frames 3 are placed on the bamboo curtain buck frame feeding machine 6, and the bamboo curtain buck frame protection plates 64 are driven by the second driving cylinders 65 to move downwards to protect the bamboo curtain buck frames 3 and prevent the bamboo curtain buck frames from falling. Two first chains 61 of the bamboo curtain buck stacker 6 run to drive a pair of protruding scrapers 62 on the first chains 61 to run, and the height of the protruding scrapers 62 is smaller than the thickness of the bottom of the bamboo curtain buck stacker 3. The raised scraper 62 scrapes the bottommost bamboo curtain buck 3 to move to the left. Due to the blocking of the bamboo curtain buck flow-limiting baffle 63, the bamboo curtain buck 3 at the lowest layer can only be pushed to the transport platform 51 of the bamboo curtain buck conveyor 5 waiting in the left direction each time. The two second chains 81 of the bamboo curtain stacker frame entering machine 6 continue to run to drive the protruding scraping plates 62 to run below the bamboo curtain stacker frame entering machine 6 and then stop, and the next bamboo curtain stacker frame entering task instruction of the electrical control system is waited. The horizontal height of the transportation platform 51 of the bamboo curtain buck conveyor 5 is equal to the bottom of the bamboo curtain buck 3 at the lowest layer of the bamboo curtain buck stacker 6 in parallel. The bamboo curtain buck 3 continues to move forward on the transport platform 51 of the bamboo curtain buck conveyor 5 at a certain inertial velocity. The first limiting cylinder 514 is actuated, the first limiting rod 513 is lifted, and the bamboo curtain buck 3 is stopped from moving leftwards. After the single bamboo curtain buck 3 runs in place, at this time, the second limiting cylinder 516 acts, and the second limiting rod 515 rises to block the rightward rebound movement of the bamboo curtain buck 3. After the bamboo curtain buck 3 is positioned by the first limiting rod 513 and the second limiting rod 515, the first bamboo curtain buck transporter 5 is started, and the transporting platform 51 moves leftwards along the first track 52 under the driving of the four wheels 512, moves right above the three small lifting platforms 21 of the first lifter 2, and is ready for curtain spreading.

And 2, the first lifter 2 moves upwards to jack up the bamboo curtain buck stacker 3.

Three small lifting platforms 21 of the first lifter 2 move upwards, penetrate through the two first rails 52 and correspondingly penetrate through three side holes 511 of the transportation platform 51, and slightly lift the bamboo curtain buck stacker 3 on the first bamboo curtain buck conveyor 5, wherein the first lifter 2 is at an initial position; the bamboo curtain stillage conveyor 5 then moves to the right, stopping at the position of figure 1, and waiting to receive a second bamboo curtain stillage 3.

And 3, hanging the secondary gum dipping dried bamboo curtain 12 by the hanger chain type conveyor 11 by using a hook 113 and moving towards the first lifter 2.

The hanger chain type conveyor 11 in the dipping bamboo curtain secondary drying suspension type tunnel kiln 1 uses the lifting hook 113 to hang the dipping bamboo curtain secondary drying 12 to move rightwards at a constant speed. As shown in fig. 2. The first driving cylinder 412 of the damping plate control device 41 is operated to lift up, the damping plate 411 is lifted up to form an inclined plane with a certain working angle (40-70 degrees), and the bottom of the bamboo curtain 12 which is dipped and dried for the second time is rubbed. Meanwhile, the hanger chain conveyor 11 continues to run at a constant speed, and the gum dipping secondary drying bamboo curtain 12 continues to move rightwards. The two barrel nozzles 14 are now closed and do not blow air. The blowpipe nozzles 14 are installed at both sides of the hanger chain conveyor 11 so as not to collide with the bamboo curtain, and blow air from the periphery to the left side of the bamboo curtain.

And 4, the bottom end of the bamboo curtain 12 subjected to the secondary glue dipping drying is inclined after contacting the damping plate 411, then the top end of the bamboo curtain 12 subjected to the secondary glue dipping drying is separated from the lifting hook 113 after contacting the curtain separating crosspiece 13, and then the bamboo curtain 12 subjected to the secondary glue dipping drying is laid on the bamboo curtain stacking frame 3 to form curtain laying work.

The hanger chain conveyor 11 with the impregnation secondary drying bamboo curtain 12 moves to the right, and fig. 18 shows the stress condition of the bamboo curtain positioned at the rightmost side at the moment, wherein the bamboo curtain has an initial speed V₀Upward pulling force F acting on the hook 113₁The downward frictional damping force F applied by the damping plate 411 to the bamboo curtain₂And the self weight P of the bamboo curtain₀To form a final resultant force F₃. The curtain off rail 13 limits immersion when the hook 113 of the catenary chain conveyor 11 is moved to the position of the curtain off rail 13The bamboo curtain 12 dried by the glue twice moves along with the lifting hook 113, and the bamboo curtain 12 dried by the glue twice is separated from the lifting hook 113. At the moment when the bamboo curtain 12 is separated from the hook 113 in the secondary drying of dipping, the two blowpipe nozzles 14 are opened to jet a jet of gas to the left side of the bamboo curtain, referring to fig. 19, and the initial velocity V is adjusted₀And under the self-weight P of the bamboo curtain₀Under the action of the glue dipping, the bamboo curtain 12 is dried twice and laid on the bamboo curtain stacking rack 3 below, and the bamboo curtain is laid on the bamboo curtain stacking rack 3 to form an automatic curtain laying. Wherein, the small lifting platform 21 of the first lifter 2 has a certain distance with the bamboo curtain damping plate 411 to ensure that the lower end of the bamboo curtain is not hung on the damping plate 411. The curtain-off crosspiece 13 is provided with a microswitch, after the top end of the bamboo curtain 12 dried by the gum dipping secondary touches the curtain-off crosspiece, the microswitch is triggered, the microswitch feeds back a signal to the pneumatic control system, and the pneumatic control system controls the blowing pipe nozzle 14 to work. After the first bamboo curtain is laid, the blowpipe nozzle 14 is closed, and a curtain laying command of the second bamboo curtain is waited.

And (4) repeating the step (4) to finish the paving work of each bamboo curtain, thereby forming the automatic paving curtain.

Step 5, if the stacking height of the bamboo curtain stacking frame 3 does not reach the preset maximum height, the step 5-1 is carried out; and if the stacking height of the bamboo curtain buck stacker 3 reaches the preset maximum height, stopping paving the bamboo curtain, moving the first lifter 2 downwards to place the bamboo curtain buck stacker 3 on the bamboo curtain buck frame discharging machine 7, and turning to the step 7.

The stacking height of the bamboo curtain stacking frame 3 reaches a preset maximum height, the second height sensor 43 detects the top of the first lifter 2 or the bamboo curtain stacking frame 3 on the first lifter, at this time, the distance of downward movement of the first lifter 2 from the initial position is equal to the preset maximum height, and the bamboo curtain stacking frame 3 is filled with the bamboo curtain 12 subjected to gum dipping and secondary drying; the hanger chain conveyor 11 stops running, the three small lifting platforms 21 of the first lifter 2 lift the stacked bamboo curtain buck 3 to quickly descend, and the bamboo curtain buck 3 is placed on the conveying chain 71 of the bamboo curtain stacking and taking-out machine.

Step 5-1, if the stacking height of the bamboo curtain stacking frame 3 reaches the preset layering height, stopping curtain spreading, jacking the bamboo-wood composite laths 104 positioned in the lath frame 102 by the second lifter 20, pushing the bamboo-wood composite laths 104 into the bamboo-wood composite lath conveyor 8 by the strip pushing machine 30, conveying the bamboo-wood composite laths 104 to the bamboo-wood composite lath throwing machine 9 by the bamboo-wood composite lath conveyor 8, throwing the bamboo-wood composite laths 104 onto the bamboo curtain stacking frame 3 by the bamboo-wood composite lath throwing machine 9, moving the first lifter 2 downwards by a moving distance equal to the thickness of one bamboo-wood composite lath 104, and turning to the step 6; and if the stacking height of the bamboo curtain buck stacker 3 does not reach the preset layering height, directly going to the step 6.

Because the bamboo curtain 12 subjected to the secondary drying by dipping has a certain temperature (70 ℃ to 90 ℃), in order to ensure ventilation and stable water content balance during aging of the bamboo curtain subjected to the secondary drying by dipping, when the bamboo curtain 12 subjected to the secondary drying by dipping is laid on the bamboo curtain stacking frame 3 to reach a certain thickness (height) (generally 20cm to 30cm), three bamboo-wood composite battens 104 are required to be placed on the laid bamboo curtain for layering stacking. In the initial stage, the support platform 10 is loaded with a forklift onto a slatted frame 102, the slatted frame 102 containing stacked bamboo-wood composite slats 104. As shown in fig. 10, the pusher 30 is above the bamboo wood composite slat conveyor 8 and the support platform 10. The second lifter 20 is below the support platform 10, and the top of the second lifter 20 can pass through the space between the two second chains 81 of the bamboo-wood composite slat conveyor 8, then pass through the through-holes of the support platform 10, and penetrate through the slat frame 102 to jack up the slat tray 103. When the pusher 30 is at the start position, the second lifter 20 is raised to jack up the slat tray 103, and the stacked bamboo-wood composite slats 104 are moved upward, and when the first slat detecting sensor 303 on the pusher 302 detects that the bamboo-wood composite slat 104 located at the uppermost layer exceeds the slat frame 102, the second lifter 20 stops raising, and the bottom of the bamboo-wood composite slat 104 located at the uppermost layer exceeds the left and right side frame walls of the slat frame 102. The pusher 30 drives the pusher 302 along the second rail 301 to push the composite bamboo/wood slat 104 located at the uppermost layer leftward, and the composite bamboo/wood slat 104 falls down on the second chain 81 of the composite bamboo/wood slat conveyor 8 from between the composite bamboo/wood slat stopper 40 and the partition 403. Since the second chain 81 of the bamboo-wood composite slat conveyor 8 has only three groove parts 82, one bamboo-wood composite slat 104 falls into one groove part 82 under the blocking of the flow-limiting baffle of the bamboo-wood composite slat, and only three bamboo-wood composite slats 104 can be taken away by the bamboo-wood composite slat conveyor 8 every time the bamboo-wood composite slat conveyor runs for one week, as shown in fig. 10. After the pusher 30 pushes away the uppermost bamboo-wood composite slat 104 in the slat frame 102, the pusher 302 is retracted to the initial position. When the second slat detecting sensor 402 detects that there is no slat at the entrance of the slat passage 401, the second lifter 20 again holds up the slat tray 103, so that the second lifter 20 stops rising when the first slat detecting sensor 303 again detects the uppermost bamboo-wood composite slat 104. When the second slat detecting sensor 402 detects that a slat is at the entrance of the slat feeding channel 401, the electric control system controls the slat pushing machine 30 to stop working; a friction bar 105 is provided on the support platform 10 to prevent the slat frame 102 from moving due to external vibration. When the second slat detecting sensor 402 detects that no slat is present at the entrance of the slat feeding passage 401, the slat pusher 30 continues to push the bamboo-wood composite slat 104 until the bamboo-wood composite slat 104 on the slat tray 103 lifted by the second lifter 20 is used up, and the second lifter 20 descends to the initial position, so that the slat tray 103 falls to the bottom flange of the slat frame 102. The forklift forks the empty slatted frame 102 and again the forklift trucks another slatted frame 102 with stacked bamboo-wood composite slats on the support platform 10.

The bamboo-wood composite slat conveyor 8 carries three bamboo-wood composite slats 104 to the bamboo-wood composite slat throwing conveyor, as shown in fig. 11. The bamboo-wood composite slat conveyor 8 stops and one end of the plurality of rollers 92 of the bamboo-wood composite slat throwing conveyor 9 is a conical body 921. When the bamboo-wood composite slat conveyor 8 carries three bamboo-wood composite slats 104 to slide over the rollers 92 from the tapered body 921, the three bamboo-wood composite slats 104 are placed at predetermined positions on the plurality of rollers 92. The second plurality of drive cylinders 65 are actuated and the piston heads move downwardly to drive the pinch rollers 94 downwardly against the bamboo-wood composite staves 104. The bamboo-wood composite slat throwing machine 9 waits for a command to throw the slats. When the laying thickness of the bamboo curtain reaches a certain height (20-30 cm), the three small lifting platforms 21 of the first lifter 2 immediately descend by the thickness of the bamboo-wood composite lath. The multiple rollers 92 of the bamboo-wood composite slat throwing machine 9 receive the slat throwing command of the electrical control system, and three bamboo-wood composite slats 104 are directly thrown by the rollers 92 onto the laid bamboo curtains of the bamboo curtain stacking rack 3 at the outlet of the slat orienting box 93. Under the comprehensive control of the rotating speed of the roller 92, the downward pressure of the pinch roll 94 and the slat orientation box 93, the three bamboo-wood composite slats 104 are directly and accurately thrown onto the flattened bamboo curtain by the roller 92 under the blocking of the gumming secondary drying bamboo curtain 12 hung by the hook 113. And then, a curtain is paved on the bamboo-wood composite lath 104 to achieve the effect of layering and stacking.

Step 6, if the curtain laying height of the bamboo curtain buck stacker 3 exceeds the preset optimal height, stopping curtain laying, moving the first lifter 2 downwards and the moving distance is the same as the preset optimal height, and at the moment, the uppermost layer of the bamboo curtain buck stacker 3 reaches the detection position of the initial position detection sensor 22, and then turning to the step 3 to continue curtain laying; if the curtain spreading height of the bamboo curtain buck stacker 3 does not exceed the preset optimal height, directly turning to the step 3;

when the height of the bamboo curtain on the bamboo curtain buck 3 exceeds the pre-optimal paving height, the three small lifting platforms 21 automatically and slowly descend under the control of the first height sensor 42 to descend for a distance of the pre-optimal height, and then the three small lifting platforms 21 stop to ensure that the subsequent bamboo curtains are paved at the optimal height.

And 7, finally, the bamboo curtain stacker frame discharging machine 7 discharges the bamboo curtain stacker frame 3 to the position of the bamboo curtain stacker frame in-place detection sensor 72 to wait for the transfer of a forklift.

The three small lifting platforms 21 of the first lifter 2 support the stacked bamboo curtain buck 3 to descend rapidly, and the bamboo curtain buck 3 is placed on the conveying chain 71 of the bamboo curtain stacking and discharging machine. The three small lifting platforms 21 continuously descend a little, after the bamboo curtain stacking rack 3 is separated, the bamboo curtain stacking rack discharging machine starts to operate, the stacked bamboo curtain stacking rack 3 is moved away from the upper side of the small lifting platform 21, the bamboo curtain stacking rack is continuously moved to the position of the bamboo curtain stacking rack in-place detection sensor 72 at the right tail end of the bamboo curtain stacking rack discharging machine, and then the machine is stopped, and a forklift is waited for transferring the stacked bamboo curtain stacking rack 3. The three small lifting platforms 21 are lifted again to be ready to receive the next bamboo curtain buck 3, and the next stacking operation is repeated.

Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.

Claims

1. The utility model provides an automatic stacking system of gumming secondary drying bamboo curtain which characterized in that includes:

a first lift located below the curtain shedding ledge;

the bamboo curtain stacking frame can be placed at the top of the first lifter;

the supporting seat is positioned below the hanger chain conveyor;

2. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 1, further comprising:

3. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 2, further comprising:

4. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 1, further comprising:

5. The automatic stacking system of dipped secondary dried bamboo curtains as claimed in claim 4, wherein the bamboo curtain buck stacker conveyor further comprises:

6. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 4, further comprising:

7. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 4, further comprising:

8. The automatic stacking system for gum dipping secondary drying bamboo curtains as claimed in claim 7, further comprising:

9. An automatic stacking method for gum dipping secondary drying bamboo curtains is characterized by comprising the following steps:

10. The automatic stacking method for gum dipping secondary drying bamboo curtains as claimed in claim 9, wherein the step 5 is specifically: if the stacking height of the bamboo curtain stacking frame does not reach the preset maximum height, turning to the step 5-1; if the stacking height of the bamboo curtain stacking frame reaches the preset maximum height, stopping curtain laying, moving the first lifter downwards to place the bamboo curtain stacking frame on the second bamboo curtain stacking frame conveyor, and turning to the step 7;