A layered stacking device for glue-impregnated and secondary-dried bamboo curtains

Abstract

The present invention provides a layered stacking device for a bamboo curtain with a second drying after being dipped in glue, comprising: a bamboo-wood composite slat throwing machine, comprising a frame, a roller, a slat orientation box, a pinch roller and a driving cylinder, a plurality of rollers are rotatably connected to the frame and arranged at intervals, one end of the roller is a cone, the pinch roller and the driving cylinder are both located above the frame, the pinch roller is rotatably connected to the telescopic end of the driving cylinder, the slat orientation box is fixedly connected to the frame and is provided with an orientation hole; a bamboo-wood composite slat conveyor, comprising a chain, the chain having a groove component, the groove component is used to receive the bamboo-wood composite slat, the chain passes between two rollers; a bamboo curtain stacking frame, located at the exit of the slat orientation box. The present invention has the advantages that the bamboo-wood composite slat throwing machine throws the bamboo-wood composite slats onto the bamboo curtain stacking frame, and after the curtain is continuously laid, the bamboo-wood composite slats separate the upper and lower layers of the bamboo curtain with a second drying after being dipped in glue, so as to realize the layered stacking of the bamboo curtain with a second drying after being dipped in glue, and improve the production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of bamboo curtain stacking, and in particular to a layered stacking device for bamboo curtains impregnated with glue and dried twice. Background Art

[0002] Traditional container bottom plates, cement molds, and plywood are mostly made of large-diameter logs, which are first peeled into veneers, then dried, and then adhesive is applied to the veneers, and then laid and pressed in a criss-cross pattern according to the wood grain. As large-diameter logs are on the verge of extinction, bamboo-wood composite boards are now used instead in production. Bamboo-wood composite materials refer to composite boards or square materials formed by combining and gluing bamboo and wood in the form of the same or different structural units. There are various combinations of bamboo-wood composite materials, such as bamboo mats or bamboo curtains-wood veneers, bamboo-wood composite plywood, bamboo-wood composite laminates, bamboo-wood composite particleboards and medium-density fiberboards, bamboo-wood strip oriented timber, etc. From the perspective of material classification, it is mainly divided into two categories: structural bamboo-wood composite materials and functional bamboo-wood composite materials.

[0003] Bamboo is a special resource in my country, with the domestic bamboo forest area reaching 5 million hm2. 2 The total annual bamboo production is more than 19 million tons, equivalent to more than 10 million m 3 Wood. Bamboo has the advantages of high strength and good toughness. It usually takes 10 to 15 years for fast-growing tree species to mature, while bamboo only takes 3 to 5 years to mature. Once the afforestation is successful, it can be selectively harvested every year for sustainable use. Since 1990, a large number of professional technicians have been engaged in the research of bamboo-wood composite materials, and a number of bamboo-wood composite material preparation methods and bamboo curtain assembly production technologies have been announced. However, there is still a lack of research on the secondary low-temperature drying curtain and curtain collection device of bamboo curtains, and there is no literature report.

[0004] The existing production process of bamboo-based radial curtain container bottom plate is: bamboo mat, bamboo curtain → drying → impregnation → secondary drying → assembly with wood veneer → hot pressing and gluing → trimming, grading, and packaging. The existing production system uses a suspended tunnel kiln for secondary drying of impregnated bamboo curtains. Inside the kiln is a heating system consisting of a set of steam radiators and fans, as well as a bamboo curtain hanger chain conveyor. A crossbar is connected to the chains on both sides of the hanger chain conveyor. Multiple crossbars are arranged at intervals, and three hooks are arranged on the crossbar. The three hooks are used to hang a bamboo curtain material that is impregnated with glue and moves it to the right at a uniform speed. After passing through the heating system inside the kiln, a bamboo curtain that is impregnated with glue and dried twice is obtained, and then the bamboo curtain is lowered at the exit of the suspended tunnel kiln for secondary drying of impregnated bamboo curtains (manually or automatically lowered by blocking).

[0005] The glue-impregnated and twice-dried bamboo curtains are spread on bamboo curtain stacking racks. In order to ensure the ventilation and air permeability and stable moisture content of the glue-impregnated and twice-dried bamboo curtains during aging, when the bamboo curtains on the bamboo curtain stacking racks are laid to a certain thickness (height), such as 20 to 30 cm, three bamboo-wood composite slats are placed on the flattened bamboo curtains for layered stacking. Currently, workers manually place the bamboo-wood composite slats on the flattened bamboo curtains, which results in low production efficiency. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a layered stacking device for glue-impregnated and secondary-dried bamboo curtains, in which bamboo-wood composite strips are placed by a machine to improve production efficiency.

[0007] The present invention is implemented as follows: a device for stacking bamboo curtains by layers after being dipped in glue and dried twice, comprising:

[0008] A bamboo-wood composite slat throwing machine comprises a frame, a roller, a slat orientation box, a pinch roller and a driving cylinder, wherein a plurality of rollers are rotatably connected to the frame and arranged at intervals, one end of the roller is a cone, the pinch roller and the driving cylinder are both located above the frame, the pinch roller is rotatably connected to the telescopic end of the driving cylinder, and the slat orientation box is fixedly connected to the frame and is provided with an orientation hole;

[0009] A bamboo-wood composite slat conveyor comprises a chain having a groove component for receiving the bamboo-wood composite slat, and the chain passes between the two rollers;

[0010] The bamboo curtain stacking rack is located at the exit of the slat orientation box.

[0011] Furthermore, it also includes:

[0012] The first elevator, the bamboo curtain pile frame can be placed on the top of the first elevator.

[0013] Furthermore, it also includes:

[0014] a distance measuring sensor for measuring the distance from the top of the first lift to the ground;

[0015] An initial position detection sensor, used for detecting that the bamboo curtain stacking frame reaches an initial position;

[0016] An electrical control system is electrically connected to the distance measuring sensor, the initial position detection sensor and the first lifter.

[0017] Furthermore, it also includes:

[0018] A first height sensor, used for detecting the height of the bamboo curtain stacking frame;

[0019] A second height sensor, used for detecting the stacking height of the bamboo curtain stacking frame;

[0020] The electrical control system is also electrically connected to the first height sensor and the second height sensor.

[0021] Furthermore, it also includes:

[0022] A position sensor is mounted on the frame and corresponds to the position of the slat orientation box.

[0023] Furthermore, it also includes:

[0024] A supporting platform, with a first through hole in the middle, and adjacent to the bamboo-wood composite slat conveyor;

[0025] a second elevator, the top of which can pass through the first through hole;

[0026] The strip pusher comprises a track, a push rod and a first strip detection sensor, wherein the track is located above the support platform, the top of the push rod is movably connected to the track, and the first strip detection sensor is fixedly connected to the bottom of the push rod;

[0027] The bamboo-wood composite slat limiting baffle and the partition are located in front of the support platform, and a slat inlet channel is provided between the bottom end of the bamboo-wood composite slat limiting baffle and the bamboo-wood composite slat conveyor;

[0028] A slat frame is placed on the supporting platform, wherein a slat tray is provided inside the slat frame, and the slat tray can move up and down along the inner wall of the slat frame. A second through hole is provided at the bottom of the slat frame, and the top of the second elevator can pass through the second through hole.

[0029] Furthermore, it also includes:

[0030] The second slat detection sensor is installed at the entrance of the slat inlet channel.

[0031] Furthermore, it also includes:

[0032] The friction strip block is fixed on the support platform and is located between the plate strip block and the support platform.

[0033] The advantages of the present invention are as follows: 1. The bamboo-wood composite slat throwing machine throws the bamboo-wood composite slats onto the bamboo curtain stacking rack. After the curtain is laid, the bamboo-wood composite slats separate the upper and lower layers of the glue-impregnated secondary dried bamboo curtains, thereby realizing the layered stacking of the glue-impregnated secondary dried bamboo curtains, ensuring the ventilation and air permeability and balanced moisture content of the glue-impregnated secondary dried bamboo curtains during aging, thereby improving production efficiency. 2. The first elevator adjusts the height of the bamboo curtain stacking rack in real time, so that the bamboo-wood composite slats can be accurately placed on the bamboo curtain stacking rack. 3. The bamboo-wood composite slats in the slat frame enter the bamboo-wood composite slat conveyor in turn, and then are transported to the bamboo-wood composite slat throwing machine, so that production is carried out in an orderly manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0035] Figure 1 The structure diagram of the layered stacking device for the glue-impregnated secondary drying bamboo curtains of the present invention is shown in FIG. Figure 1 .

[0036] Figure 2 The structure diagram of the layered stacking device for the glue-impregnated secondary drying bamboo curtains of the present invention is shown in FIG. Figure 2 .

[0037] Figure 3 It is a schematic diagram of the positions of the curtain-dropping crossbar and the hanger chain conveyor in the present invention.

[0038] Figure 4 It is a top view schematic diagram of the layered stacking device of the glue-impregnated and secondary-dried bamboo curtains of the present invention.

[0039] Figure 5 It is a structural schematic diagram of the damping plate control device in the present invention.

[0040] Figure 6 It is a schematic diagram of the position of the raised scraper in the bamboo curtain stacking and racking machine of the present invention.

[0041] Figure 7 It is a structural schematic diagram of the bamboo curtain stacking frame conveyor in the present invention.

[0042] Figure 8 It is a schematic diagram of the positions of the bamboo curtain stacking rack conveyor and the small lifting platform in the present invention.

[0043] Fig. 9 It is a schematic diagram of the positions of the small and medium-sized lifting platform and the bamboo curtain stacking rack unloading machine of the present invention.

[0044] Fig.10 It is a schematic diagram of the positions of the strip pushing machine, the second lifting machine, the bamboo curtain stacking rack feeding machine and the bamboo curtain stacking rack discharging machine in the present invention.

[0045] Fig.11It is a schematic diagram of the positions of the bamboo-wood composite slat throwing machine and the bamboo-wood composite slat conveyor in the present invention.

[0046] Fig.12 It is a structural schematic diagram of the bamboo-wood composite slat throwing machine of the present invention.

[0047] Fig.13 It is a schematic diagram of the bamboo-wood composite strip before entering the drum in the present invention.

[0048] Fig.14 It is a schematic diagram of the contact between the bamboo-wood composite strip and the cone of the drum in the present invention.

[0049] Fig.15 It is a schematic diagram of placing the bamboo-wood composite strips on the roller in the present invention.

[0050] Fig.16 It is a schematic diagram of the positions of the slat frame and the bamboo-wood composite slat conveyor in the present invention.

[0051] Fig.17 It is a schematic diagram of the positions of the support platform, the slat frame and the second lift in the present invention.

[0052] Fig.18 This is a schematic diagram of the stress state of the glue-impregnated and twice-dried bamboo curtain in the present invention. Figure 1 .

[0053] Fig.19 This is a schematic diagram of the stress state of the glue-impregnated and twice-dried bamboo curtain in the present invention. Figure 2 .

[0054] Fig. 20 It is a schematic diagram of the first lift in the present invention being located at an initial position.

[0055] Fig.21 It is a schematic diagram of the first height sensor detecting the bamboo curtain in the present invention.

[0056] Fig. 22 It is a schematic diagram of the first elevator in the present invention moving downward and the moving distance being the same as the preset optimal height.

[0057] Fig.23 It is a schematic diagram of the layered stacking of the bamboo curtain stacking frame in the present invention.

[0058] Fig.24 It is a schematic diagram of the second height sensor detecting the bamboo curtain stacking frame in the present invention.

[0059] Reference numerals:

[0060] Suspended tunnel kiln for secondary drying of impregnated bamboo curtain 1; hanger chain conveyor 11; chain 111; cross bar 112; hook 113; impregnated secondary drying bamboo curtain 12; curtain stripping cross bar 13; blow pipe nozzle 14;

[0061] First lift 2; small lift platform 21; initial position detection sensor 22; distance sensor 23;

[0062] Bamboo curtain stacking rack 3;

[0063] Support seat 4; damping plate control device 41; damping plate 411; first driving cylinder 412; first height sensor 42; second height sensor 43;

[0064] Bamboo curtain stacking frame transporter 5; transport platform 51; side hole 511; wheel 512; first limit rod 513; first limit cylinder 514; second limit rod 515; second limit cylinder 516; first track 52;

[0065] Bamboo curtain stacking rack feeding machine 6; first chain 61; raised scraper 62; bamboo curtain stacking rack flow limiting baffle 63; feeding channel 631; bamboo curtain stacking rack guard plate 64; second driving cylinder 65;

[0066] Bamboo curtain stacking rack unloading machine 7; conveying chain 71; bamboo curtain stacking rack in place detection sensor 72;

[0067] Bamboo-wood composite slat conveyor 8; second chain 81; groove member 82;

[0068] Bamboo-wood composite slat throwing machine 9; frame 91; position sensor 911; roller 92; cone 921; slat orientation box 93; orientation hole 931; pinch roller 94; third driving cylinder 95;

[0069] Support platform 10; first through hole 101; slat frame 102; second through hole 1021; slat tray 103; bamboo-wood composite slat 104; friction strip 105;

[0070] A second elevator 20;

[0071] Strip pusher 30; second track 301; push rod 302; first strip detection sensor 303;

[0072] The bamboo-wood composite slat limit baffle 40; the slat inlet channel 401; the second slat detection sensor 402; and the partition 403. DETAILED DESCRIPTION

[0073] The embodiment of the present invention provides a layered stacking device for impregnated and secondary dried bamboo curtains, thereby solving the problem in the prior art that workers manually place bamboo-wood composite slats on the bamboo curtains for flattening, and achieves the technical effect of placing bamboo-wood composite slats by machine to improve production efficiency.

[0074] The technical solution in the embodiment of the present invention is to solve the above-mentioned shortcomings. The overall idea is as follows: the bamboo-wood composite slats enter the roller of the bamboo-wood composite slat throwing machine from the bamboo-wood composite slat conveyor, and the bamboo-wood composite slats are pressed downward by the clamping roller. When the bamboo curtain stacking rack needs to be layered, the roller rotates, and the bamboo-wood composite slats enter the slat orientation box and are then placed on the bamboo curtain stacking rack.

[0075] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0076] See also Figures 1 to 24 , a preferred embodiment of the present invention.

[0077] A layered stacking device for impregnated and secondary dried bamboo curtains, comprising: a bamboo-wood composite slat throwing machine 9, comprising a frame 91, a roller 92, a slat orientation box 93, a pinch roller 94 and a third driving cylinder 95, wherein a plurality of the rollers 92 are rotatably connected to the frame 91 and arranged at intervals, one end of the roller 92 is a cone 921, the pinch roller 94 and the third driving cylinder 95 are both located above the frame 91, the pinch roller 94 is rotatably connected to the telescopic end of the third driving cylinder 95, the slat orientation box 93 is fixedly connected to the frame 91 and is provided with an orientation hole 931; a bamboo-wood composite slat conveyor 8, comprising a second chain 81, the second chain 81 having a groove component 82, the groove component 82 being used to receive the bamboo-wood composite slat 104, the groove component 82 having three, the second chain 81 passing through between two of the rollers 92; a bamboo curtain stacking frame 3, located at the outlet of the slat orientation box 93. The bamboo-wood composite slat conveyor 8 has two second chains 81, each of which has three groove components 82, and each pair of groove components 82 carries a bamboo-wood composite slat 104. The running second chain 81 carries the three bamboo-wood composite slats 104 to the frame 91 of the bamboo-wood composite slat throwing machine 9, and the bamboo-wood composite slat 104 first contacts one end of the cone 921 of the roller 92, and then moves up along the cone 921 to the outer wall of the roller 92; at this time, the bottom surface of the bamboo-wood composite slat 104 is separated from the groove component 82, but the side surface of the bamboo-wood composite slat 104 is still in contact with the groove component 82, and the bamboo-wood composite slat 104 is placed on the roller 92. When the bamboo curtain stacking rack 3 needs to be stacked in layers, the bamboo-wood composite slat throwing machine 9 puts the bamboo-wood composite slats 104 on the bamboo curtain stacking rack 3. After the curtain is laid, the bamboo-wood composite slats 104 separate the upper and lower layers of the glue-impregnated and second-dried bamboo curtains 12, thereby realizing the layered stacking of the glue-impregnated and second-dried bamboo curtains 12, ensuring the ventilation and air permeability and moisture content balance of the glue-impregnated and second-dried bamboo curtains 12 during aging, thereby improving production efficiency.

[0078] The position sensor 911 is installed on the frame 91 and corresponds to the position of the slat orientation box 93. When the bamboo-wood composite slat 104 moves to the orientation hole 931 aligned with the slat orientation 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 running. Then the third driving cylinder 95 is activated to drive the pinch roller 94 to press the bamboo-wood composite slat 104 downward.

[0079] The first elevator 2, the bamboo curtain stacking frame 91 can be placed on the top of the first elevator 2. The distance sensor 23 is used to measure the distance from the top of the first elevator 2 to the ground. The first elevator 2 adjusts the height of the bamboo curtain stacking frame 3 in real time, so that the bamboo-wood composite slats 104 are accurately placed on the bamboo curtain stacking frame 3. When the bamboo curtain laying thickness of the bamboo curtain stacking frame 3 on the first elevator 2 reaches the preset stacking height (20-30cm), the first elevator 2 immediately moves downward, and the movement amount is the thickness of a bamboo-wood composite slat. The bamboo-wood composite slat throwing machine 9 receives the start-up command, the drum 92 rotates, and three bamboo-wood composite slats 104 enter the slat orientation box 93 and are thrown onto the flattened bamboo curtain from the outlet of the orientation hole 931. The glue-impregnated secondary dried bamboo curtain 12 continues to lay the curtain, realizing layered stacking.

[0080] The initial position detection sensor 22 is used to detect that the bamboo curtain stacking frame 3 has reached the initial position; the first height sensor 42 is used to detect the height of the bamboo curtain stacking frame 3; the second height sensor 43 is used to detect the stacking height of the bamboo curtain stacking frame 3; the electrical control system is electrically connected to the first height sensor 42, the second height sensor 43, the initial position detection sensor 22, the distance sensor 23 and the first lift 2. The initial position detection sensor 22, the first height sensor 42 and the second height sensor 43 are all fixedly mounted on the support seat 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 sensor 23 is installed on the top of the first lift 2. First, the first elevator 2 is at the detection position of the initial position detection sensor 22. At this time, the glue-impregnated and secondary dried bamboo curtains 12 fall down in sequence and are laid on the bamboo curtain stacking frame 3. As the number of bamboo curtains on the bamboo curtain stacking frame 3 increases, when the first height sensor 42 detects the bamboo curtains, it sends a signal to the electric control system, indicating that the laying height of the bamboo curtain stacking frame 3 exceeds the preset optimal height; the electric control system controls the hanger chain conveyor 11 to stop operating, that is, to stop laying the curtains. The electric control system then controls the first elevator 2 to move downward and the moving distance is the same as the preset optimal height. At this time, the top bamboo curtain of the bamboo curtain stacking frame 3 reaches the detection position of the initial position detection sensor 22, and then the hanger chain conveyor 11 is restarted to continue laying the curtains. If the first elevator 2 moves downward and the moving distance is the same as the preset optimal height, at this time, the top bamboo curtain of the bamboo curtain stacking frame 3 reaches the detection position of the initial position detection sensor 22, and the time taken is less than the time taken for the bamboo curtain to move horizontally for the distance between two hanging bamboo curtains, the hanger chain conveyor 11 can not stop operating. In this way, it is ensured that each bamboo curtain is laid at the optimal height position range, and the stability of the bamboo curtain stacking is effectively improved. As the first elevator 2 continues to descend, when the second height sensor 43 detects that the stacking height of the bamboo curtain stacking frame 3 reaches the preset maximum height, that is, when the second height sensor 43 detects the top of the first elevator 2 or the bamboo curtain stacking frame 3, the curtain laying is stopped, and the first elevator 2 moves downward to place the bamboo curtain stacking frame 3 on the bamboo curtain stacking frame out-of-rack machine 7.

[0081] Detection method of stacking height: the stacking height is preset as H1 in the electrical control system, such as 20-30 cm; a distance measuring sensor 23 is installed on the first elevator 2 to measure the distance from the top of the first elevator 2 to the ground, and the change value of the lifting distance is sent to the electric control system. The position after the first elevator 2 lifts up the bamboo curtain stacking frame 3 of the bamboo curtain stacking frame conveyor 5 is the initial position, and the height distance of the initial position is H0; as the curtain laying work proceeds, the first height sensor 42 detects the bamboo curtain on the bamboo curtain stacking frame 3 for the first time, and the electrical control system begins to record the number of detections, and the number of detections is set to N, N is an integer, at this time N=1, the first elevator 2 moves downward and the moving distance is the same as the preset optimal height, and the preset optimal height is H2; thereafter, when the first height sensor 42 detects the bamboo curtain on the bamboo curtain stacking frame 3 for the Nth time, the first elevator 2 moves downward a distance of N*H2, and when the electrical control system calculates that N*H2 is greater than or equal to H1, the electrical control system controls the first elevator 2 to move downward by the thickness value of a bamboo-wood composite board strip, and this thickness value is H3; the bamboo-wood composite board strip throwing machine 9 throws the bamboo-wood composite board strip 104 onto the bamboo curtain stacking frame 3, and the electrical control system clears the parameter N. The curtain laying work continues, and the first height sensor 42 detects the bamboo curtain on the bamboo curtain stacking rack 3 for the first time, and the electrical control system starts to record the number of detections, and this cycle continues until the second height sensor 43 detects that the stacking height of the bamboo curtain stacking rack 3 reaches the preset maximum height.

[0082] The support platform 10 has a first through hole 101 in the middle and is adjacent to the bamboo-wood composite slat conveyor 8; a second elevator 20, the top of which can pass through the first through hole 101; a strip pusher 30, including a second track 301, a push rod 302 and a first slat detection sensor 303, wherein the second track 301 is located above the support platform 10, the top of the push rod 302 is movably connected to the second track 301, and the first slat detection sensor 303 is fixedly connected to the bottom of the push rod 302; the bamboo-wood composite slat limit baffle 40 and the partition 4 03, located in front of the support platform 10, there is a slat entry channel 401 between the bottom end of the bamboo-wood composite slat limit baffle 40 and the bamboo-wood composite slat conveyor 8; the slat entry channel 401 accommodates a bamboo-wood composite slat to pass through; the slat frame 102, placed on the support platform 10, the slat frame 102 has a slat tray 103 inside, the slat tray 103 can move up and down along the inner wall of the slat frame 102, the bottom of the slat frame 102 is provided with a second through hole 1021, the top of the second elevator 20 can pass through the second through hole 1021. The friction strip block 105 is fixed to the support platform 10, located between the slat block and the support platform 10. Prevent the slat frame 102 from moving due to external vibration.

[0083] Stacked bamboo-wood composite slats 104 are placed on the slat pallet 103 in the slat frame 102. After the electrical control system issues an instruction to provide slats, the top of the second elevator 20 rises through the through hole to lift up the slat pallet 103, and the stacked bamboo-wood composite slats 104 also move upward. When the first slat detection sensor 303 detects that the bamboo-wood composite slats 104 on the uppermost layer exceed the slat frame 102, the second elevator 20 stops rising. At this time, the bottom of the bamboo-wood composite slats 104 on the uppermost layer exceeds the left and right side frame walls of the slat frame 102. The strip pusher 30 drives the push rod 302 to step along the second track 301 and push away the bamboo-wood composite slat 104 on the top layer. The bamboo-wood composite slat 104 hits the bamboo-wood composite slat limit baffle 40 and falls on the bamboo-wood composite slat conveyor 8, and is piled at the entrance of the slat inlet channel 401. As the second chain 81 moves, three bamboo-wood composite slats 104 fall on the three groove parts 82 of the second chain 81, and then pass through the slat inlet channel 401 again to reach the bamboo-wood composite slat throwing machine 9. The push rod 302 of the strip pusher 30 returns to its original position. At this time, the first slat detection sensor 303 does not detect that there are bamboo-wood composite slats 104 emerging from the slat frame 102, and the electrical control system controls the second lifter 20 to lift the slat tray 103 upward again.

[0084] The second slat detection sensor 402 is installed at the entrance of the slat inlet passage 401. Sometimes, more than three bamboo-wood composite slats 104 are pushed out by the slat pusher 30. When the three groove parts 82 are all equipped with bamboo-wood composite slats 104, no other bamboo-wood composite slats 104 will fall into the groove parts 82. The bamboo-wood composite slats 104 that have not fallen into the groove parts 82 are too large to pass through the slat inlet passage 401 and are accumulated at the entrance of the slat inlet passage 401. When the second slat detection sensor 402 detects that there are still bamboo-wood composite slats 104 at the entrance of the slat channel 401, the second elevator 20 does not move upward; when the second slat detection sensor 402 detects that there are no bamboo-wood composite slats 104 at the entrance of the slat channel 401, the bamboo-wood composite slat conveyor 8 stops running, and the second elevator 20 moves upward to push out a layer of bamboo-wood composite slats 104 from the slat frame 102, and the push rod 302 of the pushing machine 30 pushes this layer of bamboo-wood composite slats 104 out, and the bamboo-wood composite slats 104 fall at the entrance of the slat channel 401.

[0085] The bamboo curtain stacking rack is laid using a hanging chain conveyor 11. The left end of the hanging chain conveyor 11 is located in the suspended tunnel kiln 1 for secondary drying of the impregnated bamboo curtain. The hanging chain conveyor 11 includes a hook 113, which is used to hang the impregnated secondary drying bamboo curtain 12. A crossbar 112 is connected to the chains 111 on both sides of the hanging chain conveyor 11. A plurality of crossbars 112 are arranged at intervals. Three hooks 113 are arranged on the crossbar 112. The three hooks 113 are used to hang a bamboo curtain material impregnated with glue and move it to the right at a uniform speed. In the preparation stage, at the entrance of the hanging chain conveyor 11, the staff gradually lifts the impregnated wet bamboo curtains one by one with the hooks 113. Then the hanging chain conveyor 11 transports the impregnated wet bamboo curtains into the tunnel kiln for secondary drying. The impregnated secondary drying bamboo curtain 12 formed moves to the right at a uniform speed and is transported to the exit of the hanging chain conveyor 11. The curtain stripping crossbar 13 is fixed at the exit of the hanger chain conveyor 11; when the hook 113 passes through the curtain stripping crossbar 13 at the exit position of the hanger chain conveyor 11, the glue-impregnated and secondary dried bamboo curtain 12 is blocked by the curtain stripping crossbar 13 and then detaches from the hook 113. The first elevator 2 is located below the curtain stripping crossbar 13; the bamboo curtain stacking frame 3 can be placed on the top of the first elevator 2; the first elevator 2 adjusts the lifting position of the bamboo curtain stacking frame 3.

[0086] The support seat 4 is located below the hanger chain conveyor 11; Figure 1 , Figure 2 and Figure 5 The damping plate 411 control device 41 comprises 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 of the damping plate 411, the cylinder body of the first driving cylinder 412 is hinged to the support seat 4, one end of the damping plate 411 is hinged to the support seat 4, and the damping plate 411 is used to contact the bottom end of the dipped and secondary dried bamboo curtain 12. The damping plate 411 is made of damping materials such as rubber; the surface of the damping plate 411 is wavy.

[0087] In the process of the hook 113 hanging the glue-impregnated secondary drying bamboo curtain 12 moving to the right, Figure 1 The first driving cylinder 412 controls the damping plate 411 to lift up. The damping plate 411 is inclined at a certain working angle of 40° to 70°. After the bottom end of the glue-impregnated and dried bamboo curtain 12 hits the damping plate 411, the glue-impregnated and dried bamboo curtain 12 tilts due to the friction with the damping plate 411. When the hook 113 moves from the bottom to the top of the hanger chain conveyor 11, the top of the inclined glue-impregnated and dried bamboo curtain 12 hits the curtain-off crossbar 13 and then detaches from the hook 113. The glue-impregnated and dried bamboo curtain 12 falls and is spread on the bamboo curtain stacking frame 3 to form a spread curtain; the subsequent glue-impregnated and dried bamboo curtains 12 are spread on the bamboo curtain stacking frame 3 in turn to realize automatic stacking of bamboo curtains.

[0088] The working principle of the present invention is described in detail below.

[0089] Step 1: The bamboo curtain stacking rack feeding machine 6 transfers the bamboo curtain stacking rack 3 to the bamboo curtain conveyor, and the bamboo curtain stacking rack conveyor 5 then transports the bamboo curtain stacking rack 3 to the top of the first elevator 2.

[0090] In the initial stage, a group of empty bamboo curtain stacking racks 3 are placed on the bamboo curtain stacking rack feeder 6, and the bamboo curtain stacking rack guard plate 64 is driven downward by the second driving cylinder 65 to protect the bamboo curtain stacking rack 3 and prevent the rack from falling. The two first chains 61 of the bamboo curtain stacking rack feeder 6 are operated, driving a pair of raised scrapers 62 on the first chain 61 to operate, and the height of the raised scrapers 62 is less than the thickness of the bottom of the bamboo curtain stacking rack 3. The raised scrapers 62 scrape the bottom bamboo curtain stacking rack 3 and move to the left. Due to the obstruction of the bamboo curtain stacking rack current limiting baffle 63, the bottom bamboo curtain stacking rack 3 can only be pushed to the transport platform 51 of the bamboo curtain stacking rack transporter 5 waiting on the left side at a time. The two second chains 81 of the bamboo curtain stacking rack feeder 6 continue to operate, driving the raised scrapers 62 to run to the bottom of the bamboo curtain stacking rack feeder 6 and then stop, waiting for the next bamboo curtain stacking rack feed task instruction of the electrical control system. The horizontal height of the transport platform 51 of the bamboo curtain stacking frame conveyor 5 is parallel to the bottom of the lowest bamboo curtain stacking frame 3 on the bamboo curtain stacking frame feeding machine 6. The bamboo curtain stacking frame 3 continues to move forward on the transport platform 51 of the bamboo curtain stacking frame conveyor 5 at a certain inertial speed. The first limit cylinder 514 is actuated, and the first limit rod 513 is raised, blocking the bamboo curtain stacking frame 3 from continuing to move to the left. After the single bamboo curtain stacking frame 3 is in place, at this time, the second limit cylinder 516 is actuated, and the second limit rod 515 is raised to block the rightward rebound movement of the bamboo curtain stacking frame 3. After the first limit rod 513 and the second limit rod 515 position the bamboo curtain stacking frame 3, the first bamboo curtain stacking frame conveyor 5 is started, and the transport platform 51 moves to the left along the first track 52 driven by the four wheels 512, and moves to the top of the three small lifting platforms 21 of the first lift 2 to prepare for receiving the curtain.

[0091] Step 2: The first lifter 2 moves upward to lift up the bamboo curtain stacking frame 3.

[0092] The three small lifting platforms 21 of the first lift 2 move upward, pass through the two first rails 52, and then pass through the three side holes 511 of the transport platform 51, slightly lifting the bamboo curtain stacking frame 3 on the first bamboo curtain stacking frame transport 5. At this time, the first lift 2 is in the initial position; then the bamboo curtain stacking frame transport 5 moves to the right, as shown in FIG. Figure 1 The bamboo curtain stacking frame 3 stops after the bamboo curtain stacking frame 3 is positioned.

[0093] Step 3: The hanger chain conveyor 11 uses a hook 113 to hang the glue-impregnated secondary drying bamboo curtain 12 and move it toward the first elevator 2.

[0094] The hanger chain conveyor 11 in the suspended tunnel kiln 1 for secondary drying of the impregnated bamboo curtain moves rightward at a uniform speed by hanging the hook 113 with the secondary drying bamboo curtain 12 for impregnated glue. Figure 2 As shown. The first driving cylinder 412 of the damping plate 411 control device 41 is lifted, and the damping plate 411 is lifted to form a certain working angle slope (40°~70°), rubbing the bottom of the glue-impregnated and secondary dried bamboo curtain 12. At the same time, the hanger chain conveyor 11 continues to operate at a uniform speed, and the glue-impregnated and secondary dried bamboo curtain 12 continues to move to the right. At this time, the two blowing pipe nozzles 14 are closed and do not blow out air. The blowing pipe nozzles 14 are installed on both sides of the hanger chain conveyor 11 and do not collide with the bamboo curtain. The blowing direction is to blow air from the outside to the left side of the bamboo curtain.

[0095] Step 4, the bottom end of the glue-impregnated and twice-dried bamboo curtain 12 hits the damping plate 411 and tilts, then the top end of the glue-impregnated and twice-dried bamboo curtain 12 hits the curtain-off crossbar 13 and detaches from the hook 113, then the glue-impregnated and twice-dried bamboo curtain 12 is spread on the bamboo curtain stacking frame 3, forming a curtain spreading operation.

[0096] The hanger chain conveyor 11 moves to the right with the glue-impregnated secondary drying bamboo curtain 12. Fig.18 For the force condition of the bamboo curtain located on the far right at this time, the bamboo curtain has an initial velocity V0 and an upward pulling force F1 exerted by the hook 113, the downward friction damping force F2 exerted by the damping plate 411 on the bamboo curtain, and the bamboo curtain's own weight P0, forming a final combined force F3. When the hook 113 of the hanger chain conveyor 11 runs to the position of the curtain stripping crossbar 13, the curtain stripping crossbar 13 limits the following movement of the glue-impregnated and secondary dried bamboo curtain 12 and the hook 113, and the glue-impregnated and secondary dried bamboo curtain 12 detaches from the hook 113. At the moment when the glue-impregnated and secondary dried bamboo curtain 12 detaches from the hook 113, the two blow pipe nozzles 14 are opened, and a stream of gas is sprayed toward the left side of the bamboo curtain. Fig.19 , adjust the initial speed V0, and under the action of the bamboo curtain's own weight P0, the glue-impregnated and second-dried bamboo curtain 12 is spread to the bamboo curtain stacking frame 3 below, and lies on the bamboo curtain stacking frame 3 to form an automatic curtain. Among them, the small lifting platform 21 of the first elevator 2 has a certain distance from the bamboo curtain damping plate 411 to ensure that the lower end of the bamboo curtain will not hang on the damping plate 411. The curtain stripping horizontal bar 13 has a micro switch. After the top of the glue-impregnated and second-dried bamboo curtain 12 hits the curtain stripping horizontal bar, the micro switch is triggered. The micro switch feedbacks 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 spread, the blowing pipe nozzle 14 is closed, waiting for the curtain spreading instruction of the second bamboo curtain.

[0097] Repeat step 4 to complete the laying of each bamboo curtain thereafter to form automatic laying of curtains.

[0098] Step 5. If the stacking height of the bamboo curtain stacking rack 3 has not reached the preset maximum height, go to step 5-1; if the stacking height of the bamboo curtain stacking rack 3 has reached the preset maximum height, stop laying the curtains, move the first elevator 2 downward to place the bamboo curtain stacking rack 3 on the bamboo curtain stacking rack out-of-rack machine 7, and go to step 7.

[0099] The stacking height of the bamboo curtain stacking rack 3 reaches the preset maximum height, and the second height sensor 43 detects the bamboo curtain stacking rack 3 on the top of the first elevator 2 or thereon. At this time, the distance moved downward by the first elevator 2 from the initial position is equal to the preset maximum height, and the bamboo curtain stacking rack 3 is loaded with the glue-impregnated and secondary dried bamboo curtains 12; the hanger chain conveyor 11 stops running, and the three small lifting platforms 21 of the first elevator 2 lift the stacked bamboo curtain stacking rack 3 and descend quickly, and place the bamboo curtain stacking rack 3 on the conveying chain 71 of the bamboo curtain stacking out-of-rack machine. Finally, the bamboo curtain stacking rack out-of-rack machine 7 transports the bamboo curtain stacking rack 3 to the detection position of the bamboo curtain stacking rack in-place detection sensor 72, waiting for forklift transportation.

[0100] Step 5-1. If the stacking height of the bamboo curtain stacking rack 3 reaches the preset layer height, stop laying the curtains, and then the second elevator 20 lifts the bamboo-wood composite slats 104 located in the slat frame 102, and the slat pusher 30 pushes the bamboo-wood composite slats 104 into the bamboo-wood composite slat conveyor 8, and the bamboo-wood composite slat conveyor 8 then transports the bamboo-wood composite slats 104 to the bamboo-wood composite slat throwing machine 9, and the bamboo-wood composite slat throwing machine 9 throws the bamboo-wood composite slats 104 onto the bamboo curtain stacking rack 3, and then the first elevator 2 moves downward and the moving distance is equal to the thickness of a bamboo-wood composite slat 104, and then go to step 6; if the stacking height of the bamboo curtain stacking rack 3 does not reach the preset layer height, go directly to step 6.

[0101] Since the glue-impregnated and second-dried bamboo curtain 12 has a certain temperature (70°C to 90°C), in order to ensure that the glue-impregnated and second-dried bamboo curtain is ventilated and has a stable moisture content during aging, when the glue-impregnated and second-dried bamboo curtain 12 is laid on the bamboo curtain stacking frame 3 to a certain thickness (height) (generally 20cm to 30cm), three bamboo-wood composite slats 104 must be placed on the laid bamboo curtain for layered stacking. In the initial stage, a slat frame 102 is placed on the support platform 10 by a forklift, and the slat frame 102 contains the stacked bamboo-wood composite slats 104. Fig.10As shown, the strip pusher 30 is above the bamboo-wood composite slat conveyor 8 and the support platform 10. The second elevator 20 is below the support platform 10, and the top of the second elevator 20 can pass between the two second chains 81 of the bamboo-wood composite slat conveyor 8, and then pass through the through hole of the support platform 10, and penetrate the slat frame 102 to lift the slat tray 103. The strip pusher 30 is in the starting position, the second elevator 20 rises, lifts the slat tray 103, and the stacked bamboo-wood composite slats 104 move upward. When the first slat detection sensor 303 on the push rod 302 detects that the bamboo-wood composite slat 104 at the top layer exceeds the slat frame 102, the second elevator 20 stops rising, and the bottom of the bamboo-wood composite slat 104 at the top layer exceeds the left and right side frame walls of the slat frame 102. The pusher 30 drives the push rod 302 to step leftward along the second track 301 and pushes away the bamboo-wood composite slats 104 located at the top layer. The bamboo-wood composite slats 104 fall from between the bamboo-wood composite slat limit baffle 40 and the partition 403 onto the second chain 81 of the bamboo-wood composite slat conveyor 8. Since the second chain 81 of the bamboo-wood composite slat conveyor 8 has only three groove parts 82, under the obstruction of the bamboo-wood composite slat current limiting baffle, one bamboo-wood composite slat 104 falls into one groove part 82, and the bamboo-wood composite slat conveyor 8 can only take away three bamboo-wood composite slats 104 per operation. Fig.10 As shown. After the strip pusher 30 pushes away the uppermost bamboo-wood composite strip 104 in the strip frame 102, the push rod 302 retreats to the initial position. When the second strip detection sensor 402 detects that there is no strip at the entrance of the strip channel 401, the second lifter 20 lifts the strip tray 103 upward again, so that when the first strip detection sensor 303 detects the uppermost bamboo-wood composite strip 104 again, the second lifter 20 stops rising. When the second strip detection sensor 402 detects that there is a strip at the entrance of the strip channel 401, the electrical control system controls the strip pusher 30 to stop working; a friction strip block 105 is set on the support platform 10 to prevent the strip frame 102 from moving due to external vibration. When the second slat detection sensor 402 detects that there is no slat at the entrance of the slat channel 401, the slat pusher 30 continues to push the bamboo-wood composite slats 104 until the bamboo-wood composite slats 104 on the slat pallet 103 lifted by the second lifter 20 are used up, and the second lifter 20 descends to the initial position, so that the slat pallet 103 falls to the bottom rib of the slat frame 102. The forklift takes away the empty slat frame 102, and another slat frame 102 with stacked bamboo-wood composite slats is placed on the supporting platform 10 again by the forklift.

[0102] The bamboo-wood composite slat conveyor 8 carries three bamboo-wood composite slats 104 and moves to the bamboo-wood composite slat throwing conveyor, such as Fig.11As shown. The bamboo-wood composite slat conveyor 8 stops, and one end of the multiple rollers 92 of the bamboo-wood composite slat throwing machine 9 is a cone 921. When the bamboo-wood composite slat conveyor 8 carries three bamboo-wood composite slats 104 and slides through the cone 921 to move onto the rollers 92, the three bamboo-wood composite slats 104 are placed at designated positions on the multiple rollers 92. The multiple second driving cylinders 65 are actuated, and the piston heads move downward, driving the clamping rollers 94 to press the bamboo-wood composite slats 104 downward. The bamboo-wood composite slat throwing machine 9 waits for the command to throw the slats. When the laying thickness of the bamboo curtain reaches a certain height (20 to 30 cm), the three small lifting platforms 21 of the first elevator 2 immediately descend to the height of the thickness of a bamboo-wood composite slat. The multiple rollers 92 of the bamboo-wood composite slat throwing machine 9 receive the command of throwing slats from the electrical control system, and three bamboo-wood composite slats 104 are directly thrown by the rollers 92 to the flattened bamboo curtain of the bamboo curtain stacking frame 3 at the outlet of the slat orientation box 93. Under the comprehensive control of the rotation speed of the rollers 92, the downward pressure of the pinch rollers 94, and the slat orientation box 93, the three bamboo-wood composite slats 104 are directly and accurately thrown by the rollers 92 to the flattened bamboo curtain under the obstruction of the glue-impregnated secondary drying bamboo curtain 12 suspended by the hook 113. Then, curtains are laid on the bamboo-wood composite slats 104 to achieve the effect of layered stacking.

[0103] Step 6: If the height of the bamboo curtain stacking frame 3 exceeds the preset optimal height, the curtain laying is stopped, and the first elevator 2 moves downward and the moving distance is the same as the preset optimal height. At this time, the uppermost bamboo curtain of the bamboo curtain stacking frame 3 reaches the detection position of the initial position detection sensor 22, and then go to step 3 to continue laying the curtain; if the height of the bamboo curtain stacking frame 3 does not exceed the preset optimal height, go directly to step 3;

[0104] When the height of the bamboo curtain stacking frame 3 exceeds the pre-optimal laying height, under the control of the first height sensor 42, the three small lifting platforms 21 automatically and slowly descend a distance of the preset optimal height, and then the three small lifting platforms 21 stop, ensuring that each subsequent bamboo curtain is laid at the optimal height position.

[0105] Step 7, finally the bamboo curtain stacking rack unloading machine 7 transports the bamboo curtain stacking rack 3 out.

[0106] The three small lifting platforms 21 of the first lift 2 carry the stacked bamboo curtain stacking rack 3 and descend quickly, placing the bamboo curtain stacking rack 3 on the conveying chain 71 of the bamboo curtain stacking out-of-rack machine. The three small lifting platforms 21 continue to descend a little, and after leaving the bamboo curtain stacking rack 3, the bamboo curtain stacking out-of-rack machine starts to operate, removes the stacked bamboo curtain stacking rack 3 from above the small lifting platforms 21, and continues to move to the position of the bamboo curtain stacking rack in place detection sensor 72 at the right end of the bamboo curtain stacking out-of-rack machine, waiting for the forklift to transport the stacked bamboo curtain stacking rack 3. The three small lifting platforms 21 rise again to prepare to receive the next bamboo curtain stacking rack 3, and repeat the next stacking work.

[0107] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A layered stacking device for glue-impregnated and secondary-dried bamboo curtains, characterized in that: include: A bamboo-wood composite slat throwing machine comprises a frame, a roller, a slat orientation box, a pinch roller and a driving cylinder, wherein a plurality of rollers are rotatably connected to the frame and arranged at intervals, one end of the roller is a cone, the pinch roller and the driving cylinder are both located above the frame, the pinch roller is rotatably connected to the telescopic end of the driving cylinder, and the slat orientation box is fixedly connected to the frame and is provided with an orientation hole; A bamboo-wood composite slat conveyor comprises a chain having a groove component for receiving the bamboo-wood composite slat, and the chain passes between the two rollers; A bamboo curtain stacking rack located at the exit of the slat orientation box; a first elevator, the bamboo curtain pile rack being able to be placed on top of the first elevator; A supporting platform, with a first through hole in the middle, and adjacent to the bamboo-wood composite slat conveyor; a second elevator, the top of which can pass through the first through hole; The strip pusher comprises a track, a push rod and a first strip detection sensor, wherein the track is located above the support platform, the top of the push rod is movably connected to the track, and the first strip detection sensor is fixedly connected to the bottom of the push rod; The bamboo-wood composite slat limiting baffle and the partition are located in front of the support platform, and a slat inlet channel is provided between the bottom end of the bamboo-wood composite slat limiting baffle and the bamboo-wood composite slat conveyor; A slat frame is placed on the supporting platform, wherein the interior of the slat frame is provided with a slat tray which can move up and down along the inner wall of the slat frame, and a second through hole is provided at the bottom of the slat frame, and the top of the second elevator can pass through the second through hole.

2. The device for stacking the impregnated and secondary dried bamboo curtains according to claim 1, characterized in that: Also includes: a distance measuring sensor for measuring the distance from the top of the first lift to the ground; An initial position detection sensor, used for detecting that the bamboo curtain stacking frame reaches an initial position; An electrical control system is electrically connected to the distance measuring sensor, the initial position detection sensor and the first lifter.

3. The device for stacking bamboo curtains impregnated with glue and dried twice according to claim 2 is characterized in that: Also includes: A first height sensor, used for detecting the height of the bamboo curtain stacking frame; A second height sensor, used for detecting the stacking height of the bamboo curtain stacking frame; The electrical control system is also electrically connected to the first height sensor and the second height sensor.

4. The device for stacking bamboo curtains impregnated with glue and dried twice according to claim 1 is characterized in that: Also includes: A position sensor is mounted on the frame and corresponds to the position of the slat orientation box.

5. The device for stacking the impregnated and secondary dried bamboo curtains according to claim 1, characterized in that: Also includes: The second slat detection sensor is installed at the entrance of the slat inlet channel.

6. The device for stacking bamboo curtains impregnated with glue and dried twice according to claim 1, characterized in that: Also includes: The friction strip block is fixed on the support platform and is located between the slat frame and the support platform.

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