Blanking method and device for core-board

Abstract

The invention discloses a core-board assembly method and device in the technical field of core-boards, the device comprises a material rotating plate and further comprises a lifting placing table arranged on one side of the material rotating plate, and at least one fixed placing table is arranged on one side of the lifting placing table; a reversing grabbing mechanism is arranged between the lifting placing table and at least one fixed placing table; the upper-layer plywood and the lower-layer plywood are stacked through the fixed placing table, the lifting placing table is used for stacking the assembly, the reversing grabbing mechanism reverses the plywood above the fixed placing table and then grabs the plywood to the position above the lifting placing table, automatic assembly of the core-board is achieved, labor is saved, and production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the technical field of plywood, and in particular to a method and apparatus for assembling plywood. Background Technology

[0002] Blockboard, as an important branch of traditional engineered wood products, has seen significant upgrades in environmental protection, production processes, and material innovation in recent years. Blockboard is a special type of plywood made by splicing wood strips or using hollow core boards as the core, and covering both sides with two or more layers of plywood, then pressing them together with glue. The characteristics of blockboard are mainly determined by its core board structure.

[0003] The manufacturing process of plywood mainly includes several steps: selecting boards, joining core strips, splicing core boards, puttying and sanding, applying glue to core boards, assembling, cold pressing, hot pressing of boards, puttying, thickness sanding, applying masking agent, applying glue and veneer, cold pressing of veneer, hot pressing of veneer, edge sawing, sanding, and sorting and packaging. Currently, most board assembly is done manually. This involves manually laying the lower layer of plywood, placing the glued core board behind it, and then manually placing the upper layer of plywood on top of the core board. This method is not conducive to improving production line efficiency and affects production capacity. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the invention, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] Therefore, the purpose of this invention is to provide a plywood assembly device that enables automatic plywood assembly, saves labor, and improves production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides a plywood assembly device, which adopts the following technical solution: including a transfer plate, and further including: a lifting and placing platform disposed on one side of the transfer plate, wherein at least one fixed placing platform is disposed on one side of the lifting and placing platform, and a reversing gripping mechanism is disposed between the lifting and placing platform and the at least one fixed placing platform.

[0007] Optionally, the reversing gripping mechanism includes a base, a vertical plate rotatably connected to the top of the base, and a mounting bracket connected to one side of the vertical plate via a height adjustment component, on which multiple suction cups are mounted.

[0008] Optionally, a rotating shaft is rotatably connected to the top of the base, and the bottom end of the upright plate is fixed to the top of the rotating shaft. A first slide is fixed to one side of the top of the base, and a first rack is slidably connected to the top of the first slide. A first telescopic cylinder is fixed to one end of the first slide, and the telescopic end of the first telescopic cylinder is fixedly connected to one end of the first rack. A first gear is fixedly sleeved on the outside of the rotating shaft, and the first gear meshes with the first rack.

[0009] Optionally, the height adjustment component includes a second slide fixed to the side wall of the upright plate, a first lead screw rotatably connected inside the second slide, an adjustment motor fixed to the top of the second slide, the output end of the adjustment motor being fixedly connected to the top end of the first lead screw, and a first nut slider slidably connected inside the second slide and sleeved on the outside of the lead screw, the first nut slider being fixed to the mounting bracket on one side wall of the second slide.

[0010] Optionally, the lifting platform includes a fixed base, a movable base above the fixed base, a first sliding groove on each side wall of the inner cavity of the fixed base, a first shaft slidably connected between the two sides of the first sliding groove, a second sliding groove on each side wall of the inner cavity of the movable base, a second shaft slidably connected between the two sides of the second sliding groove, a third shaft connected to the side of the inner cavity of the fixed base away from the first sliding groove, a fourth shaft connected to the side of the inner cavity of the movable base away from the second sliding groove, a first connecting rod rotatably connected between the first shaft and the fourth shaft, a second connecting rod rotatably connected between the second shaft and the third shaft, the middle parts of the first connecting rod and the second connecting rod being rotatably connected through a fifth shaft, a second lead screw rotatably connected inside the fixed base, a second nut slider sleeved on the outside of the second lead screw, the second nut slider being fixed to the middle part of the first shaft, a drive motor fixed to one side wall of the fixed base, and the output end of the drive motor being fixedly connected to one end of the second lead screw.

[0011] Optionally, the system further includes a conveyor, a glue applicator, and a discharger arranged in sequence. The discharger includes a base frame, with multiple guide shafts evenly arranged on the top of the base frame along the conveying direction. Guide cone wheels are fixed at both ends of each guide shaft. A conveying motor is fixed at the bottom of the base frame. The output end of the conveying motor is connected to one of the guide shafts via a chain and sprocket. Adjacent guide shafts are also connected via chains and sprockets. A turning mechanism is fixed on one side of the base frame, and the turning plate is mounted on the turning mechanism.

[0012] Optionally, the material turning mechanism includes a side frame fixed to one side of the base frame. A bearing seat is installed on the top of the side frame, and a turning shaft is rotatably connected to the bearing seat. Both ends of the turning shaft are fixed with the material turning plates. One material turning plate is located between two guide cone wheels, and the other material turning plate is located between two other guide cone wheels. A third slide is fixed to one side of the side frame. A second rack is slidably connected to the top of the third slide. A second telescopic cylinder is fixed to one end of the third slide. The telescopic end of the second telescopic cylinder is fixedly connected to one end of the second rack. A second gear is fixedly sleeved on one end of the turning shaft. The second gear meshes with the second rack.

[0013] Optionally, a first support plate is fixed to the side of the base frame away from the glue applicator, a third telescopic cylinder is fixed to the first support plate, and a horizontally arranged first positioning plate is fixed to the telescopic end of the third telescopic cylinder. A second support plate is also fixed to the bottom of the base frame, a fourth telescopic cylinder is fixed to the second support plate, and a vertically arranged second positioning plate is fixed to the telescopic end of the fourth telescopic cylinder. The second positioning plate is located between two guide shafts. A third positioning plate is fixed to one end of the transfer plate, and a movable slide groove is provided at the other end of the transfer plate. A fourth positioning plate is slidably connected in the movable slide groove. A fifth telescopic cylinder is fixed to the other end of the transfer plate, and the telescopic end of the fifth telescopic cylinder is fixedly connected to the bottom side of one side of the fourth positioning plate.

[0014] This invention also provides a method for assembling plywood, comprising the following steps: Step S1: Start the conveyor, glue applicator and unloading machine. Place the core board, which has been selected, core strip spliced, core board spliced ​​and puttyed and sanded, on the conveyor. After being glued by the glue applicator, it is transported to the top of the unloading machine. Step S2: While performing step S, adjust the lifting and placing platform to a certain height, use the suction cup to adsorb the plywood on the fixed placing platform, and then control the first telescopic cylinder to drive the rotating shaft to rotate half a turn through the first rack and the first gear, and then adsorb the lower layer of plywood onto the top of the lifting and placing platform. Step S3: Then control the first telescopic cylinder again to drive the rotating shaft to rotate half a turn in the opposite direction, rotate it to the top of the fixed placement platform through the suction cup, and adsorb the plywood on the fixed placement platform again, waiting to adsorb the upper plywood onto the core board. Step S4: The core board after gluing is transported to one end of the base frame via the guide cone wheels at both ends of multiple guide shafts. Then, the fourth telescopic cylinder is controlled to drive the second positioning plate to move upward. Then, the third telescopic cylinder is controlled to drive the first positioning plate to move towards the core board. Then, the fifth telescopic cylinder is controlled to drive the fourth positioning plate to move towards the third positioning plate. Then, the second telescopic cylinder is controlled to reverse half a turn through the second rack and the second gear to flip the clamped core board above the lower plywood. The clamping of the second telescopic cylinder is released, and the core board falls onto the lower plywood. Step S5: Then control the first telescopic cylinder again to drive the rotating shaft to rotate half a turn, and use the suction cup to adsorb the upper plywood onto the core board; Step S6: Repeat steps S1-S5.

[0015] In summary, the present invention has at least one of the following beneficial effects: 1. This invention uses a fixed placement platform to stack upper and lower layers of plywood, a lifting placement platform for stacking plywood blanks, and a reversing gripping mechanism to reverse the direction of the plywood above the fixed placement platform and grip it above the lifting placement platform, thereby realizing the automatic assembly of plywood blanks, saving labor and improving production efficiency.

[0016] 2. The lifting and placing platform used in this invention can be adjusted in height as the number of plywood boards increases after the upper blanking process, so as to accommodate the transfer plate flipping the core board to the top of the lifting and placing platform; the reversing gripping mechanism can adjust the height of the plywood adsorbed by multiple suction cups through the height adjustment component, and as the number of plywood boards on the fixed placing platform decreases, all the plywood boards on the fixed placing platform are gripped and placed above the lifting and placing platform.

[0017] 3. The present invention positions the core board by means of the first positioning plate and the second positioning plate to prevent the core board from tilting. The positioned core board is clamped between the third positioning plate and the fourth positioning plate so as to facilitate the rotation of the core board from above the base frame to above the lifting and placing platform. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the reversing gripping mechanism of the present invention; Figure 3 This is a schematic diagram of the lifting and placing platform structure of the present invention; Figure 4This is a schematic diagram of the connection structure between the base and the upright plate of the present invention; Figure 5 This is a schematic diagram of the unloading machine structure of the present invention; Figure 6 For the present invention Figure 5 A magnified structural diagram of part A; Figure 7 For the present invention Figure 4 A schematic diagram of the left-side view structure.

[0020] Explanation of reference numerals in the attached drawings: 100, Transfer plate; 101, First support plate; 102, Third telescopic cylinder; 103, First positioning plate; 104, Second support plate; 105, Fourth telescopic cylinder; 106, Second positioning plate; 107, Third positioning plate; 108, Movable chute; 109, Fourth positioning plate; 110, Fifth telescopic cylinder; 200, Lifting and placing platform; 201, Fixed seat; 202, Movable seat; 203, First chute; 204, First shaft; 205, Second chute; 206, Second shaft; 207, Third shaft; 208, Fourth shaft; 209, First connecting rod; 210, Second connecting rod; 211, Fifth shaft; 212, Second lead screw; 213, Second nut slider; 214, Drive motor; 300, Conveyor. ; 400. Reversing gripping mechanism; 401. Base; 402. Vertical plate; 403. Mounting frame; 404. Suction cup; 405. Second slide; 406. First lead screw; 407. Adjusting motor; 408. First nut slider; 409. Rotating shaft; 410. First slide; 411. First rack; 412. First telescopic cylinder; 413. First gear; 500. Glue applicator; 600. Unloading machine; 601. Base frame; 602. Guide shaft; 603. Guide cone wheel; 604. Conveying motor; 605. Chain and sprocket; 606. Side frame; 607. Shaft seat; 608. Tilting shaft; 609. Third slide; 610. Second rack; 611. Second telescopic cylinder; 612. Second gear; 700. Fixed placement platform. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, or operate in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] Example 1 Reference Figure 1 The present invention discloses a plywood assembly device, including a transfer plate 100, and further including a lifting and placing platform 200 disposed on one side of the transfer plate 100, at least one fixed placing platform 700 disposed on one side of the lifting and placing platform 200, and a reversing gripping mechanism 400 disposed between the lifting and placing platform 200 and the at least one fixed placing platform 700.

[0025] With the above structure, when the upper and lower plywood layers are multi-layered and not stacked together, multiple fixed placement platforms 700 can be set up to place the corresponding plywood. In this embodiment, the upper and lower plywood layers use the same plywood, and one fixed placement platform 700 is used to stack the upper and lower plywood layers simultaneously. The lifting placement platform 200 is used for plywood assembly. The height of the lifting placement platform 200 can be adjusted as the number of plywood layers increases after assembly to accommodate the transfer plate 100 flipping the core board above the lifting placement platform 200. The reversing gripping mechanism 400 is used to reverse the direction of the plywood above the fixed placement platform 700 and grip it above the lifting placement platform 200, thus realizing automatic plywood assembly, saving labor and improving production efficiency.

[0026] Reference Figure 2In detail, in this embodiment, the reversing gripping mechanism 400 includes a base 401, with a vertical plate 402 rotatably connected to the top of the base 401. A mounting frame 403 is connected to one side of the vertical plate 402 via a height adjustment component. Multiple suction cups 404 are mounted on the mounting frame 403. The suction cups 404 employ multiple existing plate-type suction cups as shown in the figure to stabilize and adsorb the plywood. As the amount of plywood gripped on the fixed placement platform 700 decreases, the height of the plywood adsorbed by the multiple suction cups 404 can be adjusted using the height adjustment component to ensure that all the plywood on the fixed placement platform 700 is gripped above the lifting placement platform 200.

[0027] Reference Figure 4 In detail, in this embodiment, a rotating shaft 409 is rotatably connected to the top of the base 401, and the bottom end of the upright plate 402 is fixed to the top of the rotating shaft 409. A first slide block 410 is fixed to one side of the top of the base 401, and a first rack 411 is slidably connected to the top of the first slide block 410. A first telescopic cylinder 412 is fixed to one end of the first slide block 410, and the telescopic end of the first telescopic cylinder 412 is fixedly connected to one end of the first rack 411. A first gear 413 is fixedly sleeved on the outside of the rotating shaft 409, and the first gear 413 meshes with the first rack 411. By controlling the extension and retraction of the first telescopic cylinder 412, the first rack 411 can be driven to reciprocate on the first slide block 410. During the reciprocating movement, the teeth on the surface will drive the first gear 413 to rotate forward or backward half a turn, thereby realizing the reversing gripping between the lifting platform 200 and the fixed platform 700.

[0028] Reference Figure 2 In detail, in this embodiment, the height adjustment component includes a second slide block 405 fixed to the side wall of the upright plate 402. A first lead screw 406 is rotatably connected inside the second slide block 405. An adjustment motor 407 is fixed to the top of the second slide block 405. The output end of the adjustment motor 407 is fixedly connected to the top end of the first lead screw 406. A first nut slider 408 is slidably connected inside the second slide block 405 and is mounted on a mounting bracket 403 on one side wall of the second slide block 405. When the height of the suction cup 404 needs to be adjusted, the adjustment motor 407 is started to rotate the first lead screw 406, thereby causing the first nut slider 408 to move vertically within the second slide block 405, thereby causing the suction cup 404 on the mounting bracket 403 to move upward or downward.

[0029] Example 2 Reference Figure 3Based on the same concept as in Embodiment 1, the lifting and placing platform 200 of the plywood assembly device includes a fixed base 201, a movable base 202 above the fixed base 201, and first sliding grooves 203 on the inner sidewalls of the fixed base 201. A first shaft 204 is slidably connected between the two first sliding grooves 203. Second sliding grooves 205 on the inner sidewalls of the movable base 202 are slidably connected between the two second sliding grooves 205. A third shaft 207 is connected to the side of the inner cavity of the fixed base 201 away from the first sliding grooves 203, and a third shaft 207 is connected to the side of the inner cavity of the movable base 202 away from the second sliding grooves 205. The four axes 208 are connected by a first connecting rod 209 between the first axis 204 and the fourth axis 208. The second axis 206 and the third axis 207 are connected by a second connecting rod 210. The middle parts of the first connecting rod 209 and the second connecting rod 210 are rotatably connected through a fifth axis 211. The inside of the fixed base 201 is rotatably connected to a second lead screw 212. The outside of the second lead screw 212 is fitted with a second nut slider 213. The second nut slider 213 is fixed to the middle part of the first axis 204. A drive motor 214 is fixed to one side wall of the fixed base 201. The output end of the drive motor 214 is fixedly connected to one end of the second lead screw 212. The movable seat 202 is used to place the assembled plywood above it. When the height of the movable seat 202 needs to be adjusted, the drive motor 214 is started to drive the second lead screw 212 to rotate. The second lead screw 212 drives the second shaft 206 to move back and forth through the second nut slider 213. During the back and forth movement of the second shaft 206, the height of the assembled plywood above the movable seat 202 will be adjusted under the constraints of the first connecting rod 209, the second connecting rod 210 and the fifth shaft 211.

[0030] Example 3 Reference Figure 1 and Figure 5Based on the same concept as in Embodiment 1, this plywood assembly device further includes a conveyor 300, a glue applicator 500, and a unloading machine 600 arranged sequentially. After the core boards have undergone selection, core strip splicing, core board assembly, and puttying and sanding, they are conveyed by the conveyor 300 to the glue applicator 500. After being glued by the glue applicator 500, they are conveyed to the unloading machine 600. The unloading machine 600 specifically includes a base frame 601, and the top of the base frame 601 is evenly provided with multiple... Each guide shaft 602 has a guide cone wheel 603 fixed at both ends. The guide cone wheel 603 facilitates the forward, backward, left, and right movement of the core board. A conveying motor 604 is fixed at the bottom of the base frame 601. The output end of the conveying motor 604 is connected to one of the guide shafts 602 via a chain and sprocket 605. Adjacent guide shafts 602 are also connected via chains and sprockets 605. A turning mechanism is fixed on one side of the base frame 601, and a turning plate 100 is mounted on the turning mechanism. By starting the conveying motor 604, multiple guide shafts 602 will be driven to rotate synchronously via chains and sprockets 605. When the core board moves from the glue applicator 500 to above the base frame 601, it will fall between the guide cone wheels 603 at both ends of the guide shaft 602 and be conveyed to the top of the turning mechanism. The turning plate 100 of the turning mechanism will flip the glued core board to the top of the lifting and placing platform 200.

[0031] Combination Figure 6 In detail, in this embodiment, the turning mechanism includes a side frame 606 fixed to one side of the base frame 601. A bearing seat 607 is installed on the top of the side frame 606. A turning shaft 608 is rotatably connected to the bearing seat 607. A material transfer plate 100 is fixed at both ends of the turning shaft 608. One material transfer plate 100 is located between two guide cone wheels 603, and the other material transfer plate 100 is located between two other guide cone wheels 603, which does not affect the conveying of the core board. A third slide 609 is fixed on one side of the side frame 606. A second rack 610 is slidably connected to the top of the third slide 609. A second telescopic cylinder 611 is fixed at one end of the third slide 609. The telescopic end of the second telescopic cylinder 611 is fixedly connected to one end of the second rack 610. A second gear 612 is fixedly sleeved on one end of the turning shaft 608. The second gear 612 is meshed with the second rack 610. When the core board after gluing is conveyed to the top of the flipping mechanism, the extension and retraction of the second telescopic cylinder 611 is controlled, which can drive the second rack 610 to reciprocate on the third slide 609. During the reciprocating movement, the teeth on the surface will drive the second gear 612 to rotate forward or backward half a turn, thereby driving the flipping shaft 608 to repeatedly flip the transfer plate 100 between the base frame 601 and the lifting and placing platform 200.

[0032] Example 4 Reference Figure 7Based on the same concept as in Embodiment 3 above, this plywood assembly device further includes a first support plate 101 fixed on the side of the base frame 601 away from the glue applicator 500, a third telescopic cylinder 102 fixed on the first support plate 101, a horizontally arranged first positioning plate 103 fixed at the telescopic end of the third telescopic cylinder 102, a second support plate 104 fixed at the bottom of the base frame 601, a fourth telescopic cylinder 105 fixed on the second support plate 104, a vertically arranged second positioning plate 106 fixed at the telescopic end of the fourth telescopic cylinder 105, and the second positioning plate 106 located between the two guide shafts 602; a third positioning plate 107 fixed at one end of the transfer plate 100, a movable slide groove 108 provided at the other end of the transfer plate 100, a fourth positioning plate 109 slidably connected in the movable slide groove 108, and a fifth telescopic cylinder 110 fixed at the other end of the transfer plate 100, the telescopic end of the fifth telescopic cylinder 110 being fixedly connected to the bottom side of one side of the fourth positioning plate 109. When the core board after gluing is conveyed to the top of the flipping mechanism, before the flipping mechanism operates, the fourth telescopic cylinder 105 is controlled first. The fourth telescopic cylinder 105 drives the second positioning plate 106 to move upward, extending above the height of the guide shaft 602, thus restricting one side of the core board. Then, the third telescopic cylinder 102 is controlled, which drives the first positioning plate 103 to move towards the core board side, cooperating with the second positioning plate 106 to position the core board and prevent it from tilting. After positioning is completed, the fifth telescopic cylinder 110 is controlled, which drives the fourth positioning plate 109 to move towards the third positioning plate 107. Under the restriction of the third positioning plate 107, the positioned core board is clamped between the third positioning plate 107 and the fourth positioning plate 109, so that the core board can be rotated from above the base frame 601 to above the lifting and placing platform 200.

[0033] It should be noted that the third telescopic cylinder 102, the fourth telescopic cylinder 105, the fifth telescopic cylinder 110, the first telescopic cylinder 412, the second telescopic cylinder 611, the drive motor 214, the regulating motor 407, etc. mentioned above are all existing products, and their structural principles will not be elaborated here. Each telescopic cylinder can be a pneumatic cylinder.

[0034] Working principle: Step S1: Start the conveyor 300, glue applicator 500 and unloading machine 600. Place the core board, which has been selected, core strip flat joint, core board splicing, and puttying and sanding, on the conveyor 300. After being glued by the glue applicator 500, it is conveyed to the base frame 601 of the unloading machine 600. Step S2: While performing step S1, adjust the lifting placement platform 200 to a certain height, and use the suction cup 404 to adsorb the plywood on the fixed placement platform 700. Then control the first telescopic cylinder 412 to drive the rotating shaft 409 to rotate half a turn through the first rack 411 and the first gear 413, and then adsorb the lower layer of plywood onto the top of the lifting placement platform 200. Step S3: Then control the first telescopic cylinder 412 again to drive the rotating shaft 409 to rotate half a turn in the opposite direction, and rotate it to the top of the fixed placement platform 700 through the suction cup 404, and adsorb the plywood on the fixed placement platform 700 again, waiting to adsorb the upper plywood onto the core board. Step S4: The core board after gluing is conveyed to one end of the base frame 601 via the guide cone wheels 603 at both ends of the multiple guide shafts 602. Then, the fourth telescopic cylinder 105 is controlled to drive the second positioning plate 106 to move upward. Then, the third telescopic cylinder 102 is controlled to drive the first positioning plate 103 to move towards the core board side. Then, the fifth telescopic cylinder 110 is controlled to drive the fourth positioning plate 109 to move towards the third positioning plate 107, and the core board is clamped between the third positioning plate 107 and the fourth positioning plate 109. The second telescopic cylinder 611 is controlled to reverse half a turn through the second rack 610 and the second gear 612 to flip the clamped core board above the lower plywood, release the clamping of the second telescopic cylinder 611, and the core board falls onto the lower plywood. Step S5: Then control the first telescopic cylinder 412 again to drive the rotating shaft 409 to rotate half a turn, and use the suction cup 404 to adsorb the upper plywood onto the core board. Step S6: Repeat steps S1-S5.

[0035] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A plywood assembly device, comprising a transfer plate (100), characterized in that: Also includes: A lifting placement platform (200) is provided on one side of the transfer plate (100), and at least one fixed placement platform (700) is provided on one side of the lifting placement platform (200). A reversing gripping mechanism (400) is provided between the lifting placement platform (200) and the at least one fixed placement platform (700).

2. The plywood assembly device according to claim 1, characterized in that: The reversing gripping mechanism (400) includes a base (401), a vertical plate (402) is rotatably connected to the top of the base (401), and a mounting bracket (403) is connected to one side of the vertical plate (402) via a height adjustment component. Multiple suction cups (404) are mounted on the mounting bracket (403).

3. The plywood assembly device according to claim 2, characterized in that: The top of the base (401) is rotatably connected to a rotating shaft (409), and the bottom end of a vertical plate (402) is fixed to the top of the rotating shaft (409). A first slide (410) is fixed to one side of the top of the base (401), and a first rack (411) is slidably connected to the top of the first slide (410). A first telescopic cylinder (412) is fixed to one end of the first slide (410), and the telescopic end of the first telescopic cylinder (412) is fixedly connected to one end of the first rack (411). A first gear (413) is fixedly sleeved on the outside of the rotating shaft (409), and the first gear (413) meshes with the first rack (411).

4. The plywood assembly device according to claim 2, characterized in that: The height adjustment component includes a second slide block (405) fixed to the side wall of the upright plate (402). A first lead screw (406) is rotatably connected inside the second slide block (405). An adjustment motor (407) is fixed to the top of the second slide block (405). The output end of the adjustment motor (407) is fixedly connected to the top end of the first lead screw (406). A first nut slider (408) is slidably connected inside the second slide block (405) on the outside of the lead screw. The first nut slider (408) is located on one side wall of the second slide block (405) and the mounting bracket (403) is fixed thereon.

5. The plywood assembly device according to claim 1, characterized in that: The lifting platform (200) includes a fixed base (201), and a movable base (202) is provided above the fixed base (201). The inner wall of the fixed base (201) has a first sliding groove (203), and a first shaft (204) is slidably connected between the two first sliding grooves (203). The inner wall of the movable base (202) has a second sliding groove (205), and a second shaft (206) is slidably connected between the two second sliding grooves (205). A third shaft (207) is connected to the side of the inner cavity of the fixed base (201) away from the first sliding groove (203), and a fourth shaft (208) is connected to the side of the inner cavity of the movable base (202) away from the second sliding groove (205). A first connecting rod (209) is rotatably connected between the second shaft (206) and the third shaft (207). A second connecting rod (210) is rotatably connected between the second shaft (206) and the third shaft (207). The middle parts of the first connecting rod (209) and the second connecting rod (210) are rotatably connected through the fifth shaft (211). A second lead screw (212) is rotatably connected inside the fixed seat (201). A second nut slider (213) is sleeved on the outside of the second lead screw (212). The second nut slider (213) is fixed to the middle part of the first shaft (204). A drive motor (214) is fixed on one side wall of the fixed seat (201). The output end of the drive motor (214) is fixedly connected to one end of the second lead screw (212).

6. A plywood assembly device according to any one of claims 1-5, characterized in that: It also includes a conveyor (300), a glue applicator (500) and a discharger (600) arranged in sequence. The discharger (600) includes a base frame (601). Multiple guide shafts (602) are evenly arranged on the top of the base frame (601) along the conveying direction. Guide cone wheels (603) are fixed at both ends of the guide shafts (602). A conveying motor (604) is fixed at the bottom of the base frame (601). The output end of the conveying motor (604) is connected to one of the guide shafts (602) through a chain sprocket (605). Two adjacent guide shafts (602) are also connected through a chain sprocket (605). A turning mechanism is fixed on one side of the base frame (601). The turning plate (100) is installed on the turning mechanism.

7. The plywood assembly device according to claim 6, characterized in that: The material turning mechanism includes a side frame (606) fixed to one side of the base frame (601). A bearing seat (607) is mounted on the top of the side frame (606). A turning shaft (608) is rotatably connected to the bearing seat (607). The turning shaft (608) has a transfer plate (100) fixed at both ends. One transfer plate (100) is located between two guide cone wheels (603), and the other transfer plate (100) is located between two other guide cone wheels (603). A third slide (609) is fixed on one side of the frame (606). A second rack (610) is slidably connected to the top of the third slide (609). A second telescopic cylinder (611) is fixed to one end of the third slide (609). The telescopic end of the second telescopic cylinder (611) is fixedly connected to one end of the second rack (610). A second gear (612) is fixedly sleeved on one end of the flipping shaft (608). The second gear (612) meshes with the second rack (610).

8. The plywood assembly device according to claim 7, characterized in that: A first support plate (101) is fixed on the side of the base frame (601) away from the glue applicator (500). A third telescopic cylinder (102) is fixed on the first support plate (101). A horizontally arranged first positioning plate (103) is fixed to the telescopic end of the third telescopic cylinder (102). A second support plate (104) is also fixed to the bottom of the base frame (601). A fourth telescopic cylinder (105) is fixed on the second support plate (104). A vertically arranged second positioning plate is fixed to the telescopic end of the fourth telescopic cylinder (105). 106), the second positioning plate (106) is located between the two guide shafts (602); one end of the transfer plate (100) is fixed with a third positioning plate (107), the other end of the transfer plate (100) is provided with a movable slide groove (108), a fourth positioning plate (109) is slidably connected in the movable slide groove (108), and a fifth telescopic cylinder (110) is fixed at the other end of the transfer plate (100), and the telescopic end of the fifth telescopic cylinder (110) is fixedly connected to the bottom of one side of the fourth positioning plate (109).

9. A method for assembling plywood, characterized in that: Includes the following steps: Step S1: Start the conveyor (300), glue applicator (500) and unloading machine (600). Place the core board, which has been selected, core strip flat joint, core board splicing, and puttying and sanding, on the conveyor 300. After being glued by the glue applicator 500, it is conveyed to the base frame (601) of the unloading machine (600). Step S2: While performing step S1, adjust the lifting placement platform (200) to a certain height, and use the suction cup (404) to adsorb the plywood on the fixed placement platform (700). Then control the first telescopic cylinder (412) to drive the rotating shaft (409) to rotate half a turn through the first rack (411) and the first gear (413), and then adsorb the lower layer of plywood onto the top of the lifting placement platform (200). Step S3: Then control the first telescopic cylinder (412) again to drive the rotating shaft (409) to rotate half a turn in the opposite direction, and rotate it to the top of the fixed placement platform (700) through the suction cup (404) to adsorb the plywood on the fixed placement platform (700) again, and wait to adsorb the upper plywood onto the core board. Step S4: The core board after gluing is transported to one end of the base frame (601) via the guide cones (603) at both ends of the multiple guide shafts (602). Then, the fourth telescopic cylinder (105) is controlled to drive the second positioning plate (106) to move upward. Then, the third telescopic cylinder (102) is controlled to drive the first positioning plate (103) to move towards the core board side. Then, the fifth telescopic cylinder (110) is controlled to drive the fourth positioning plate (109) to move towards the third positioning plate (107). Then, the second telescopic cylinder (611) is controlled to reverse half a turn through the second rack (610) and the second gear (612) to flip the clamped core board to the top of the lower plywood, release the clamping of the second telescopic cylinder (611), and the core board falls onto the lower plywood. Step S5: Then control the first telescopic cylinder (412) again to drive the rotating shaft (409) to rotate half a turn, and use the suction cup (404) to adsorb the upper plywood onto the core board; Step S6: Repeat steps S1-S5.

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