A continuous plywood gluing and splicing hot pressing production line

Abstract

This invention provides a continuous glue-coating and hot-pressing production line for plywood, including a glue-coating device, a flattening device, and a hot-pressing machine feeding platform. Through a continuous device integrating automatic flipping, combing, and flattening functions after glue coating, it can replace the high-intensity, repetitive manual tasks of bamboo strip arrangement, flipping, and pre-assembly preparation in traditional processes. The flipping mechanism can precisely and consistently flip each bamboo strip 90°, strictly ensuring the process requirements for the orientation of the green and yellow sides of the bamboo strips in bamboo laminated timber or plywood. Through the stepped combing and triangular amplification principle of the flattening mechanism, the front-end adhered bamboo strips can be reliably separated. The subsequent rolling mechanism further flattens the rear end of the bamboo strips, ultimately achieving complete flattening of the bamboo strips. This application serves as an automated bridge connecting the glue-coating and hot-pressing processes, realizing unmanned and continuous flow of bamboo strips from glue-coating output to hot-pressing feed, improving the overall smoothness and automation level of the production line.

Description

Technical Field

[0001] This invention relates to the field of plywood production, and in particular to a continuous glue-coating and hot-pressing production line for plywood. Background Technology

[0002] China is a major bamboo-producing country globally, ranking first in the world in terms of bamboo species, planting area, resource reserves, and production of bamboo timber and bamboo shoots. According to the results of the Ninth National Forest Resources Inventory, the total bamboo forest area in China reaches 6.4116 million hectares, accounting for one-third of the world's total bamboo forest resources, highlighting my country's core advantage in bamboo resources.

[0003] The production process of bamboo plywood and bamboo engineered lumber mainly includes bamboo strip planing, sorting and bundling, gluing, splicing, and hot pressing. Currently, gluing, splicing, and hot pressing largely rely on manual labor. The specific process involves unbundling bamboo strips, applying glue, splicing, and pressing in a hot press. Due to significant differences in density, mechanical properties, and appearance between the green and yellow sides of bamboo strips, the production of bamboo plywood and bamboo engineered lumber requires strict adherence to the orientation of the green and yellow sides. Random arrangement is not permitted. First, the bamboo strips that have been counted and bundled in the previous process must be removed, unbundled by workers, and then placed into a gluing machine for even gluing. Subsequently, manual labor is required to rotate the glued bamboo strips 90° according to the green and yellow side orientation standard for splicing. Finally, the spliced ​​bamboo strips are sent to a hot press for pressing and shaping.

[0004] The main problems currently existing are:

[0005] 1. Traditional manufacturing enterprises must rely on manpower to unbundle, glue, and assemble bundles of bamboo strips, which is very time-consuming and energy-intensive.

[0006] 2. Existing glue-applying machines only reduce the labor intensity of manual glue-applying operations. Unbundling bamboo strips, arranging bamboo strips, feeding them into the glue-applying machine, removing bamboo strips from the glue-applying machine, and splicing bamboo strips into boards all require manual labor, which is still very labor-intensive. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the aforementioned problems in the prior art, this invention provides a continuous plywood gluing and splicing hot pressing production line.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0011] A continuous plywood gluing and splicing hot pressing production line includes a gluing device, a paving device, and a hot press feeding platform;

[0012] The outlet of the adhesive applicator is connected to the paving device;

[0013] The paving device includes a frame, a pressing mechanism, a turning mechanism, a pushing mechanism, a rolling mechanism, and a paving and feeding mechanism;

[0014] The flattening and feeding mechanism is mounted on the frame and is used to feed the flattened bamboo strips into the hot press loading platform.

[0015] The flipping mechanism is located at one end of the frame near the gluing device and is used to rotate the tail of the stacked bamboo strips by 90°.

[0016] The pressing mechanism is located at one end of the frame away from the gluing device, and is used to press and fix the heads of the stacked bamboo strips.

[0017] The pushing mechanism is mounted on the frame and is used to unfold the stacked bamboo strips in a fan shape.

[0018] The rolling mechanism is mounted on the frame and is used to unfold the fan-shaped bamboo strips, remove their stacked structure, and present them in a flat form.

[0019] Preferably, the pressing mechanism includes a lower support plate, an upper pressure plate, and a pressing cylinder;

[0020] The downward pressure cylinder is mounted on the frame;

[0021] The piston rod of the lower cylinder is connected to the upper pressure plate;

[0022] The lower support plate is mounted on the frame and positioned below the upper pressure plate.

[0023] Preferably, the flipping mechanism includes a flipping cylinder, a flipping connecting plate, an open-type shaft support, a rotating shaft, a pressing cylinder, a vertical shaft support, a pressing plate, a pressing support plate, a lifting cylinder, and a mounting plate.

[0024] The bottom ends of the mounting plate are respectively connected to the piston rods of the lifting cylinder;

[0025] The lifting cylinder is mounted on the frame;

[0026] The tilting cylinder is installed at the bottom of the mounting plate, and the piston rod of the tilting cylinder is connected to the tilting connecting plate;

[0027] The flip-up connecting plate is connected to the rotating shaft via the open-type shaft support;

[0028] The rotating shaft is connected to the mounting plate via a bearing seat, and the vertical shaft support is installed at the end of the rotating shaft.

[0029] The clamping plate is mounted on the vertical shaft support;

[0030] Both the clamping cylinder and the clamping support plate are mounted on the clamping plate.

[0031] Preferably, the pushing mechanism includes a pushing cylinder, a pushing plate, and a pushing guide rail;

[0032] The horizontal push cylinder is mounted on the frame, and the piston rod of the horizontal push cylinder is connected to the horizontal push plate, which is mounted on the horizontal push guide rail. The horizontal push cylinder drives the horizontal push plate to move along the horizontal push guide rail, and the bottom of the horizontal push plate has a stepped edge design.

[0033] Preferably, the rolling mechanism includes a roller, a roller mounting plate, a rolling downward cylinder, a rolling mounting plate, a rolling translation guide rail, and a rolling translation cylinder;

[0034] The roller is mounted on the roller mounting plate;

[0035] The bottom of the rolling mounting plate is symmetrically equipped with two sets of rolling downward displacement cylinders;

[0036] The piston rod of the rolling downward displacement cylinder is connected to the roller mounting plate;

[0037] The bottom of both ends of the roll-fitted mounting plate is provided with sliders;

[0038] The slider is slidably mounted on the rolling translation guide rail;

[0039] The rolled translation guide rail is mounted on the frame;

[0040] The rolling translation cylinder is mounted on the frame and is used to drive the rolling mounting plate to move along the rolling translation guide rail.

[0041] Preferably, the flat feeding mechanism is provided in two sets, which are arranged symmetrically from left to right. The flat feeding mechanism includes a flat feeding cylinder, a flat feeding guide rail and a flat feeding limit plate.

[0042] The piston rod of the flat-laying feeding cylinder is connected to the flat-laying feeding limiting plate;

[0043] The flat material feeding limit plate is slidably installed on the flat material feeding guide rail via a slider.

[0044] (III) Beneficial Effects

[0045] The beneficial effects of this invention are as follows: This application, through a continuous device integrating automatic flipping, combing, and flattening functions after gluing, can replace the high-intensity repetitive operations of manual bamboo strip arrangement, flipping, and pre-assembly preparation in traditional processes. The flipping mechanism can precisely and consistently flip each bamboo strip 90°, strictly ensuring the process requirements for the orientation of the green and yellow sides of the bamboo strips in bamboo engineered wood or plywood. Through the stepped combing and triangular amplification principle of the flattening mechanism, the front-end adhered bamboo strips can be reliably separated. The subsequent rolling mechanism further flattens the rear end of the bamboo strips, ultimately achieving complete flattening of the bamboo strips. This application, as an automated bridge connecting the gluing and hot-pressing processes, realizes unmanned and continuous flow of bamboo strips from gluing output to hot-pressing feeding, improving the overall smoothness and automation level of the production line. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of a continuous plywood gluing and splicing hot pressing production line.

[0047] Figure 2 This is a schematic diagram of the tiling device.

[0048] Figure 3 This is a schematic diagram of the pressing mechanism;

[0049] Figure 4 This is a schematic diagram of the flipping mechanism;

[0050] Figure 5 This is a schematic diagram of the horizontal pushing mechanism;

[0051] Figure 6 This is a schematic diagram of the rolling mechanism;

[0052] Figure 7 This is a schematic diagram of the flat material feeding mechanism;

[0053] Figure 8 This is a schematic diagram illustrating the changes in the state of bamboo strips.

[0054] [Explanation of Labels in the Attached Image]

[0055] 1. Glue application device;

[0056] 2. Laying device;

[0057] 21. Rack;

[0058] 22. Pressing mechanism; 221. Pressing cylinder; 222. Upper pressure plate; 223. Lower support plate;

[0059] 23. Tilting mechanism; 231. Lifting cylinder; 232. Tilting cylinder; 233. Mounting plate; 234. Tilting connecting plate; 235. Open-type shaft support; 236. Rotating shaft; 237. Vertical shaft support; 238. Pressing plate; 239. Pressing support plate; 2310. Pressing cylinder;

[0060] 24. Horizontal pushing mechanism; 241. Horizontal pushing cylinder; 242. Horizontal pushing plate; 243. Horizontal pushing guide rail;

[0061] 25. Rolling mechanism; 251. Roller; 252. Roller mounting plate; 253. Rolling downward movement cylinder; 254. Rolling mounting plate; 255. Rolling translation guide rail; 256. Rolling translation cylinder;

[0062] 26. Flat-laying material feeding mechanism;

[0063] 261. Flat feeding cylinder; 262. Flat feeding limit plate; 263. Flat feeding guide rail;

[0064] 3. Hot press loading platform. Detailed Implementation

[0065] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] The present invention provides a continuous glue-coating and hot-pressing production line for plywood, which is suitable for long strips of wood and bamboo. The following description uses bamboo strips as an example.

[0067] Please refer to Figures 1 to 8 The present invention provides a continuous plywood gluing and splicing hot pressing production line, including a gluing device 1, a flattening device 2 and a hot press feeding platform 3;

[0068] The outlet of the adhesive applicator 1 is connected to the flat laying device 2;

[0069] The paving device 2 includes a frame 21, a pressing mechanism 22, a turning mechanism 23, a pushing mechanism 24, a rolling mechanism 25, and a paving and feeding mechanism 26;

[0070] The flattening and feeding mechanism 26 is mounted on the frame 21. The flattening and feeding mechanism 26 is used to feed the flattened bamboo strips into the hot press loading platform 3.

[0071] The flipping mechanism 23 is located at one end of the frame 21 near the glue applicator 1, and is used to rotate the tail of the stacked bamboo strips by 90°.

[0072] The pressing mechanism 22 is located at the end of the frame 21 away from the glue applicator 1, and is used to press and fix the heads of the stacked bamboo strips.

[0073] The flat pushing mechanism 24 is mounted on the frame 21 and is used to unfold the stacked bamboo strips in a fan shape.

[0074] The rolling mechanism 25 is mounted on the frame 21 and is used to unfold the fan-shaped bamboo strips, remove their stacking structure, and present them in a flat form.

[0075] In this embodiment, the pressing mechanism 22 includes a lower support plate 223, an upper pressure plate 222, and a pressing cylinder 221;

[0076] The downward pressure cylinder 221 is mounted on the frame 21;

[0077] The piston rod of the lower cylinder 221 is connected to the upper pressure plate 222;

[0078] The lower support plate 223 is mounted on the frame 21 and is located below the upper pressure plate 222;

[0079] In use, the lower pressure cylinder 221 drives the upper pressure plate 222 to move downward, pressing and fixing the stacked bamboo strips between the lower support plate 223 and the upper pressure plate 222.

[0080] In this embodiment, the flipping mechanism 23 includes a flipping cylinder 232, a flipping connecting plate 234, an open-type shaft support 235, a rotating shaft 236, a pressing cylinder 2310, a vertical shaft support 237, a pressing plate 238, a pressing support plate 239, a lifting cylinder 231, and a mounting plate 233.

[0081] The bottom ends of the mounting plate 233 are respectively connected to the piston rods of the lifting cylinder 231;

[0082] Lifting cylinder 231 is mounted on frame 21;

[0083] The tilting cylinder 232 is installed at the bottom of the mounting plate 233, and the piston rod of the tilting cylinder 232 is connected to the tilting connecting plate 234.

[0084] The flip-connecting plate 234 is connected to the rotating shaft 236 via the open-type shaft support 235;

[0085] The rotating shaft 236 is connected to the mounting plate 233 via a bearing seat, and a vertical shaft support 237 is installed at the end of the rotating shaft 236.

[0086] The clamping plate 238 is installed on the vertical shaft support 237;

[0087] Both the clamping cylinder 2310 and the clamping support plate 239 are mounted on the clamping plate 238;

[0088] In use, the stacked bamboo strips are pressed and fixed between the pressing support plate 239 and the pressing cylinder 2310. The piston rod of the flipping cylinder 232 drives the flipping connecting plate 234 to rotate upward, thereby rotating the stacked bamboo strips 90° clockwise. Then, the pressing mechanism 22 presses the front end of the bamboo strips, completing the transition from state 1 to state 2.

[0089] In this embodiment, the horizontal pushing mechanism 24 includes a horizontal pushing cylinder 241, a horizontal pushing plate 242, and a horizontal pushing guide rail 243;

[0090] The flat-push cylinder 241 is mounted on the frame 21. The piston rod of the flat-push cylinder 241 is connected to the flat-push plate 242, which is mounted on the flat-push guide rail 243. The flat-push cylinder 241 drives the flat-push plate 242 to move along the flat-push guide rail 243. The bottom of the flat-push plate 242 has a stepped edge design. The size of the stepped structure can be set according to different bamboo strip specifications to achieve flat-push of bamboo strips of various specifications.

[0091] In use, the flat-push cylinder 241 drives the flat-push plate 242 to move along the flat-push guide rail 243. The stepped structure at the bottom of the flat-push plate 242 contacts the side of the bamboo strip in sequence and moves the bamboo strip by a corresponding distance. Through the principle of triangle magnification, the front bamboo strip is separated by a larger distance, like a fan, to ensure that the front bamboo strip is completely separated, thus realizing the transition from state 2 to state 3.

[0092] In this embodiment, the rolling mechanism 25 includes a roller 251, a roller mounting plate 252, a rolling downward cylinder 253, a rolling mounting plate 254, a rolling translation guide rail 255, and a rolling translation cylinder 256.

[0093] Roller 251 is mounted on roller mounting plate 252;

[0094] Two sets of rolling downward displacement cylinders 253 are symmetrically arranged on the bottom of the rolling mounting plate 254;

[0095] The piston rod of the rolling downward displacement cylinder 253 is connected to the roller mounting plate 252;

[0096] The bottom of both ends of the roll-formed mounting plate 254 is equipped with sliders.

[0097] The slider is slidably mounted on the rolled translation guide rail 255;

[0098] The rolled translation guide 255 is mounted on the frame 21;

[0099] The rolling translation cylinder 256 is mounted on the frame 21 and is used to drive the rolling mounting plate 254 to move along the rolling translation guide rail 255.

[0100] In use, the rolling downward cylinder 253 drives the roller mounting plate 252 to move downward, so that the roller 251 contacts the surface of the bamboo strip that is unfolded in a fan shape, and drives the roller to press the bamboo strip in state 3. As the rolling translation cylinder 256 drives the rolling mounting plate 254 to move along the rolling translation guide rail 255, the rear end of the bamboo strip is laid flat, that is, the transition from state 3 to state 4.

[0101] In this embodiment, two sets of flat feeding mechanisms 26 are provided, which are arranged symmetrically from left to right. The flat feeding mechanism 26 includes a flat feeding cylinder 261, a flat feeding guide rail 263, and a flat feeding limit plate 262.

[0102] The piston rod of the flat feeding cylinder 261 is connected to the flat feeding limit plate 262;

[0103] The flat material feeding limit plate 262 is slidably mounted on the flat material feeding guide rail 263 via a slider;

[0104] In use, the flat-laying cylinder 261 drives the flat-laying limit plate 262 to move along the flat-laying guide rail 263. During the movement, the bamboo strips in state 4 come into contact with each other in state 5. The flat bamboo strips are then fed into the hot press loading platform 3 and finally fed into the hot press through the hot press loading platform 3 to be hot-pressed into plywood.

[0105] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

[0106] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A continuous plywood gluing and splicing hot pressing production line, characterized in that, This includes an adhesive application device, a paving device, and a hot press loading platform; The outlet of the adhesive applicator is connected to the paving device; The paving device includes a frame, a pressing mechanism, a turning mechanism, a pushing mechanism, a rolling mechanism, and a paving and feeding mechanism; The flattening and feeding mechanism is mounted on the frame and is used to feed the flattened bamboo strips into the hot press loading platform. The flipping mechanism is located at one end of the frame near the gluing device and is used to rotate the tail of the stacked bamboo strips by 90°. The pressing mechanism is located at one end of the frame away from the gluing device, and is used to press and fix the heads of the stacked bamboo strips. The pushing mechanism is mounted on the frame and is used to unfold the stacked bamboo strips in a fan shape. The rolling mechanism is mounted on the frame and is used to unfold the fan-shaped bamboo strips, remove their stacked structure, and present them in a flat form.

2. The continuous gluing and hot pressing production line for plywood as described in claim 1, characterized in that, The pressing mechanism includes a lower support plate, an upper pressure plate, and a pressing cylinder; The downward pressure cylinder is mounted on the frame; The piston rod of the lower cylinder is connected to the upper pressure plate; The lower support plate is mounted on the frame and positioned below the upper pressure plate.

3. The continuous gluing and hot pressing production line for plywood as described in claim 1, characterized in that, The flipping mechanism includes a flipping cylinder, a flipping connecting plate, an open-type shaft support, a rotating shaft, a pressing cylinder, a vertical shaft support, a pressing plate, a pressing support plate, a lifting cylinder, and a mounting plate. The bottom ends of the mounting plate are respectively connected to the piston rods of the lifting cylinder; The lifting cylinder is mounted on the frame; The tilting cylinder is installed at the bottom of the mounting plate, and the piston rod of the tilting cylinder is connected to the tilting connecting plate; The flip-up connecting plate is connected to the rotating shaft via the open-type shaft support; The rotating shaft is connected to the mounting plate via a bearing seat, and the vertical shaft support is installed at the end of the rotating shaft. The clamping plate is mounted on the vertical shaft support; Both the clamping cylinder and the clamping support plate are mounted on the clamping plate.

4. The continuous gluing and hot pressing production line for plywood as described in claim 1, characterized in that, The pushing mechanism includes a pushing cylinder, a pushing plate, and a pushing guide rail; The horizontal push cylinder is mounted on the frame, and the piston rod of the horizontal push cylinder is connected to the horizontal push plate, which is mounted on the horizontal push guide rail. The horizontal push cylinder drives the horizontal push plate to move along the horizontal push guide rail, and the bottom of the horizontal push plate has a stepped edge design.

5. The continuous gluing and hot pressing production line for plywood as described in claim 1, characterized in that, The rolling mechanism includes rollers, roller mounting plates, rolling downward cylinders, rolling mounting plates, rolling translation guide rails, and rolling translation cylinders. The roller is mounted on the roller mounting plate; The bottom of the rolling mounting plate is symmetrically equipped with two sets of rolling downward displacement cylinders; The piston rod of the rolling downward displacement cylinder is connected to the roller mounting plate; The bottom of both ends of the roll-fitted mounting plate is provided with sliders; The slider is slidably mounted on the rolling translation guide rail; The rolled translation guide rail is mounted on the frame; The rolling translation cylinder is mounted on the frame and is used to drive the rolling mounting plate to move along the rolling translation guide rail.

6. The continuous gluing and hot pressing production line for plywood according to claim 1, characterized in that, The flat feeding mechanism is provided in two sets, which are symmetrically arranged on the left and right. The flat feeding mechanism includes a flat feeding cylinder, a flat feeding guide rail and a flat feeding limit plate. The piston rod of the flat-laying feeding cylinder is connected to the flat-laying feeding limiting plate; The flat material feeding limit plate is slidably installed on the flat material feeding guide rail via a slider.

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