A reconstituted bamboo processing apparatus and method

By designing the molding and die mechanisms, and combining position recognition and three-dimensional motion drive components, the problem of inaccurate forming of hollow structures in reconstituted bamboo boards was solved, achieving efficient automated production and reducing labor intensity.

CN116749301BActive Publication Date: 2026-01-06ZHEJIANG JIUCHUAN BAMBOO & WOOD +1
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202310628492.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-31
Publication Date
2026-01-06
Estimated Expiration
2043-05-31

AI Technical Summary

Technical Problem

Existing reconstituted bamboo boards are difficult to precisely form hollow structures during hot pressing, resulting in poor product consistency, low production efficiency, and high labor intensity for workers.

Method used

By employing a molding mechanism and a mold mechanism, combined with position recognition and adjustment components, the hollow mold is ensured to move along a predetermined trajectory during the molding process. Combined with a three-dimensional motion drive component, automatic demolding and carrier functions are achieved, reducing the labor intensity of workers.

Benefits of technology

It enables accurate positioning of hollow structures, improves product consistency, increases production efficiency, reduces labor intensity for workers, and reduces equipment costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116749301B_ABST
    Figure CN116749301B_ABST
Patent Text Reader

Abstract

The application relates to the technical field of recombination bamboo processing, and discloses a recombination bamboo processing device and method.The recombination bamboo processing device comprises a mould pressing mechanism and a mould mechanism.The mould pressing mechanism comprises a bottom plate, a side pressing plate and an upper pressing plate, and a forming space is formed among the bottom plate, the side pressing plate and the upper pressing plate.The mould mechanism comprises an adjusting assembly, a position recognition assembly and a hollow mould.The position recognition assembly is used for recognizing the position of the hollow mould, and the adjusting assembly adjusts the position of the hollow mould according to the position information of the hollow mould obtained by the position recognition assembly, so that the hollow mould moves along a predetermined track during the mould pressing process, the accuracy of the hollow structure forming position is ensured, and the product quality is improved.The hollow mould is used as a forming mould of the hollow structure and a carrier for plate ejection, realizes the integration of multiple functions, simultaneously realizes automatic ejection and demoulding, effectively improves the processing rhythm of the process, ensures the production efficiency, and reduces the labor intensity of workers.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of reconstituted bamboo processing technology, specifically to a reconstituted bamboo processing equipment and method. Background Technology

[0002] Reconstituted bamboo is typically made by cutting, splitting, slicing or layering bamboo into strips, drying, impregnating with adhesive, assembling the bamboo strips or shreds longitudinally, and then hot-pressing them. It is a high-density, high-strength structural material that has seen widespread application in recent years. Reconstituted bamboo is currently widely used in flooring, wall panels, and profile panels. At present, the production of profiles and panels from reconstituted bamboo generally uses hot pressing machines. These panels have high density and require a large amount of adhesive, leading to high material consumption and significant pollution. If reconstituted bamboo panels could be processed into hollow structures, it would be possible to reduce material and adhesive usage while maintaining strength, thus saving costs and improving environmental protection. Patent CN103182727B discloses a hollow reconstituted bamboo and its manufacturing method, specifically by adding a molding rod during hot pressing to create a hollow structure in the hot-pressed panel. However, this method has certain drawbacks, as the density of the raw materials varies with each addition. The material properties vary, making it difficult to accurately shape the hollow structure. This results in inconsistent sheet material quality across batches, affecting product quality. Furthermore, in the production process, after hot pressing, the sheet material needs to be removed before the molding rod is ejected. If continuous hot pressing is required, multiple sets of molding rods are needed, increasing equipment costs. If the molding rod is ejected before the next hot pressing, the demolding step reduces the cycle time, leading to increased intervals between processes and reduced production efficiency. Moreover, when the sheet material is ejected, workers must bear the weight of both the sheet material and the molding rod. With a large number of hollow structures, the number of molding rods is also large, resulting in a significant total weight of the ejected sheet material and high labor intensity for workers. This application addresses these issues. Summary of the Invention

[0003] The purpose of this invention is to provide a reconstituted bamboo processing equipment and method, which proposes a method to process reconstituted bamboo boards with hollow structures, ensure the accuracy of the position of the hollow structures on the boards, improve product quality, and also realize automatic feeding, thereby reducing the labor intensity of workers.

[0004] The present invention is achieved through the following technical solution.

[0005] This invention discloses a reconstituted bamboo processing device, comprising a molding mechanism and a mold mechanism. The molding mechanism includes a base plate, side pressure plates, and an upper pressure plate, which together form a forming space. The mold mechanism includes an adjustment component, a position recognition component, and a hollow mold. The position recognition component identifies the position of the hollow mold. The adjustment component adjusts the position of the hollow mold based on the position information obtained by the position recognition component, so that the hollow mold moves along a predetermined trajectory during the molding process, ensuring the accuracy of the hollow structure forming position.

[0006] Furthermore, the reconstituted bamboo processing equipment also includes a three-dimensional motion drive component and a material storage station. The three-dimensional motion drive component can drive the hollow mold to move in three-dimensional space. After molding, the hollow mold is used as a carrier to transport the material to the material storage station.

[0007] Furthermore, the mold mechanism also includes a vibration component, which is used to cause the hollow mold to vibrate.

[0008] Furthermore, the adjustment assembly includes a support body and an adjustment telescopic component. At least six sets of the adjustment telescopic component are provided and are evenly distributed in a circular shape on the support body. The center of the circle has an adjustment space for the hollow mold to extend into.

[0009] Furthermore, the location identification component includes several location sensors.

[0010] Furthermore, the mold mechanism is provided in two sets, respectively located on both sides of the molding mechanism; correspondingly, the three-dimensional motion drive component is also provided in two sets.

[0011] Furthermore, the mold mechanism is provided with a plurality of hollow molds.

[0012] Furthermore, the storage station is equipped with a stacking support and a positioning structure, and the material is placed on the stacking support and located within the positioning structure.

[0013] A method for processing reconstituted bamboo, based on the aforementioned reconstituted bamboo processing equipment, includes the following steps:

[0014] Bamboo raw materials are laid in the molding space, and the laid bamboo raw materials enclose the hollow mold. At this time, the hollow mold is in the initial set position.

[0015] The bamboo raw material is pressure-formed using a molding mechanism, with the upper pressure plate pressing down to apply pressure to the bamboo raw material;

[0016] During the molding process, the density of the bamboo raw material gradually increases, and the position of the hollow mold will change. Eventually, the hollow mold will move along the set trajectory to the set position. During the molding process, when the position recognition component detects that the hollow mold deviates from the set trajectory, the position recognition component issues an adjustment command. After receiving the adjustment command, the adjustment component performs an adjustment action and applies an adjustment force in the corresponding direction to the hollow mold according to the required adjustment position, so that it returns to the set trajectory.

[0017] Furthermore, in the bamboo raw material laying step, after the bamboo raw material is laid, the vibration component causes the hollow mold to vibrate at the initial set position. Under the action of vibration, the gap of the bamboo raw material is reduced, thereby achieving stable support for the hollow mold.

[0018] After molding, the three-dimensional motion drive component uses the hollow mold as a carrier to drive the molded raw material to the storage station. During transportation, the three-dimensional motion drive component drives the hollow mold to demold outward. After the raw material is placed in the storage station, it is completely demolded.

[0019] The beneficial effects of this invention are:

[0020] By setting up a mold mechanism, during the sheet metal forming process, adjusting components and position recognition components work together to ensure that the hollow mold moves along a predetermined trajectory. This avoids the problem of inconsistent hollow mold movement trajectories caused by raw material quality, processing errors, etc., leading to uncertain final positions and inaccurate hollow structure forming positions. This ensures product consistency and improves product quality. Simultaneous demolding is achieved during sheet metal ejection. The hollow mold serves as both the forming mold for the hollow structure and the carrier for sheet metal ejection, integrating multiple functions into one unit. Automatic material feeding and demolding occur simultaneously, effectively improving the processing cycle time, ensuring production efficiency, and reducing worker labor intensity. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of a reconstituted bamboo processing equipment according to the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure of the reconstituted bamboo processing equipment during material discharge.

[0025] Figure 3 To adjust the side view of the component structure;

[0026] Figure 4 This is a side view of the molding mechanism;

[0027] Figure 5 This is a cross-sectional view of the hollow mold. Detailed Implementation

[0028] The following is combined with Figure 1-5 The present invention will be described in detail below.

[0029] Example 1:

[0030] The present invention provides a reconstituted bamboo processing device, such as... Figure 1 , 2 (Top view) It includes a molding mechanism 100 and a mold mechanism 200. The molding mechanism 100 includes a base plate 101, a side pressure plate 102 and an upper pressure plate 103. The molding mechanism 100 is generally a hot press. The upper pressure plate 103 is connected to a hydraulic device and a heating device. The heating device is generally an oil supply pipe. When hot oil enters the upper pressure plate 103 through the oil supply pipe, the temperature of the upper pressure plate rises. The structure and principle of the hot press are similar to those of the traditional hot press, and will not be described in detail here.

[0031] The base plate 101, the side pressure plate 102, and the upper pressure plate 103 form a molding space 104, which is used to place raw materials and hot press them into shape. The raw materials need to be processed. The general processing steps are to cut the bamboo poles into sections, and then make them into bamboo strips, bamboo bundles, etc. The bamboo strips and bamboo bundles are softened, dried, and impregnated with glue before they can be laid in the molding space 104. There are many existing technologies for processing bamboo raw materials, and it is not limited to the above processing methods.

[0032] Mold mechanism 200 Figure 1 As shown, it includes an adjustment component 201, a position recognition component 204, and a hollow mold 203. The position recognition component 204 is used to identify the position of the hollow mold 203. The adjustment component 201 adjusts the position of the hollow mold 203 according to the position information of the hollow mold 203 obtained by the position recognition component 204, so that the hollow mold moves along a predetermined trajectory during the molding process, ensuring the accuracy of the hollow structure forming position.

[0033] Specifically, the reconstituted bamboo processing equipment also includes a three-dimensional motion drive component 300 and a material storage station 400. The three-dimensional motion drive component 300 can drive the hollow mold 203 to move in three-dimensional space. After molding, the hollow mold 203 is used as a carrier to transport the material to the material storage station 400. The three-dimensional motion drive component 300 includes an X-axis slide rail 301, a Y-axis slide rail 302, and a Z-axis slide rail 303. The adjustment component 201 is installed on the Z-axis slide rail 303. The adjustment component 201 is as follows: Figure 3 The diagram shows a support body 207 and adjustable telescopic components 205. The support body 207 is cylindrical. Six to ten sets of adjustable telescopic components 205 are evenly distributed in a circular pattern on the support body 207. The center of the circumference provides an adjustment space for the hollow mold 203 to extend into. Each adjustable telescopic component 205 can be a pneumatic cylinder, hydraulic cylinder, or electric cylinder. Each adjustable telescopic component 205 is individually driven. The six adjustable telescopic components 205 can precisely adjust the position of the hollow mold 203. The hollow mold 203... Figure 5 The hollow mold 203 can be cylindrical, square prism, or polygonal prism, etc., and can be designed according to the shape of the hollow structure inside the required profile. The hollow mold 203 can be made of metal such as steel or cast iron. The position recognition component 204 includes several position sensors, which can be laser rangefinders, ultrasonic rangefinders, through-beam ultrasonic sensors (set at the positions of the hollow mold and the position recognition component respectively), image sensors, etc. When precise position needs to be obtained, multiple or multiple sets of sensors can be set.

[0034] Preferably, the mold mechanism 200 is provided in two sets, respectively arranged on both sides of the molding mechanism 100, and correspondingly, the three-dimensional motion drive component 300 is also provided in two sets. The ends of the hollow molds 203 on both sides are connected to each other.

[0035] Preferably, the mold mechanism 200 is provided with a plurality of hollow molds 203. In this embodiment, three pairs are provided, arranged as follows: Figure 4 As shown, the location is set according to actual needs during the production process.

[0036] Preferably, the storage station 400 is provided with a stacking support 403 and a positioning structure 402. The material is placed on the stacking support 403 and located in the positioning structure 402. The positioning structure 402 consists of four positioning posts on the four sides of the storage station 400. The molded sheet is placed between the four positioning posts to avoid positional changes when the hollow mold is demolded. The gaps between the stacking supports 403 facilitate forklift handling.

[0037] Example 2: Based on Example 1, the mold mechanism 200 further includes a vibration component 202, which is used to cause the hollow mold 203 to vibrate, such as... Figure 1 The vibration assembly 202 includes an exciter (vibrator). In this embodiment, the exciter can be a pneumatic piston vibrator or a turbine vibrator, etc. The exciter is installed on the support body 207, and the vibration output position of the exciter abuts against the hollow mold 203.

[0038] A method for processing reconstituted bamboo, based on the reconstituted bamboo processing equipment in Embodiment 1 or 2 above, includes the following steps:

[0039] The processed bamboo raw material is laid in the molding space 104, enclosing the hollow mold 203. At this time, the hollow mold 203 is in its initial set position. The position of the hollow mold 203 is adjusted by clamping it with the adjusting telescopic component 205 in the adjusting component 201. The adjusting component 201, the position recognition component 204, the vibration component, and the three-dimensional motion drive component 300 are all connected to the control mechanism. The control mechanism is a PCL programmable control component, a computer module, a server module, etc. The initial position, the final position, and the motion trajectory of the hollow mold 203 are set in the control mechanism. The initial position, the final position, and the motion trajectory are obtained... The parameters can be obtained through experiments. For example, the initial or final position can be determined first, and through several molding processes, the movement speed and position of the hollow mold 203 under different time periods or different pressures can be obtained. By selecting multiple tests on the final molded boards where the hollow structure positions are consistent or have small errors, the movement trajectory, initial position, and final position can be fitted to obtain the initial position, final position, movement trajectory, movement speed, and other parameters used in production. This allows for the control of the hollow mold 203 in the production process. Specifically, the molding mechanism 100 is used to pressure-form the bamboo raw material, and the upper pressure plate 103 applies pressure to the bamboo raw material.

[0040] During the molding process, the density of the bamboo raw material gradually increases, and the position of the hollow mold 203 will change. Eventually, the hollow mold 203 will move along the set trajectory to the set position. During the molding process, the molding process can be divided into several segments, and the position of the hollow mold in each segment is detected. When the position recognition component 204 detects that the hollow mold 203 deviates from the set trajectory, the position recognition component 204 issues an adjustment command. After receiving the adjustment command, the adjustment component 201 performs an adjustment action and applies an adjustment force in the corresponding direction to the hollow mold 203 according to the position to be adjusted, so that it returns to the set trajectory. If, during time period X, the hollow mold 203 is detected to be moving lower than the set trajectory, the lower adjusting telescopic component 205 applies upward pressure to the hollow mold 203, causing it to maintain its position or move upwards until its position coincides with the expected position for the current time period. Then, the adjusting telescopic component 205 stops applying pressure to the hollow mold 203, ensuring it reaches the accurate termination position smoothly. This ensures accurate positioning of the hollow structure within the profile, guaranteeing product consistency and improving product quality. Furthermore, the three-dimensional motion drive component 300 can assist in adjusting the hollow mold's position. When the hollow mold is on the predetermined trajectory, the adjusting telescopic component 205 does not need to contact it, preventing continuous pressure and reducing its service life.

[0041] Preferably, in the bamboo raw material laying step, after the bamboo raw material is laid, the vibration component 202 causes the hollow mold 203 to vibrate at the initial set position. The bamboo raw material reduces the gap under the vibration, thereby achieving stable support for the hollow mold 203. During vibration, the telescopic component 205 is adjusted to pre-clamp the hollow mold 203 to maintain its position. The end of the telescopic component 205 may be provided with a flexible clamping block 206, such as rubber.

[0042] After molding is completed, the three-dimensional motion drive component 300 uses the hollow mold 203 as a carrier to drive the molded sheet 500 to the storage station 400. During transportation, the three-dimensional motion drive component 300 drives the hollow mold 203 to demold outward. After the sheet 500 is placed in the storage station 400, it is completely demolded. During the demolding process, the vibration component (202) can be used to generate vibration to assist demolding.

[0043] This allows for simultaneous demolding during the sheet material ejection process. The hollow mold serves as both a forming mold for the hollow structure and a carrier for sheet material ejection, integrating multiple functions into one unit. Automatic material feeding and demolding are carried out simultaneously, effectively improving the processing cycle, ensuring production efficiency, and reducing the labor intensity of workers.

[0044] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand and implement the present invention. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A reed bamboo processing apparatus, characterized by: The moulding mechanism (100) comprises a bottom plate (101), a side pressing plate (102) and an upper pressing plate (103), and a forming space (104) is formed among the bottom plate (101), the side pressing plate (102) and the upper pressing plate (103); the mould mechanism (200) comprises an adjusting assembly (201), a position recognition assembly (204) and a hollow mould (203), the position recognition assembly (204) is used for recognizing the position of the hollow mould (203), and the adjusting assembly (201) adjusts the position of the hollow mould (203) according to the position information of the hollow mould (203) obtained by the position recognition assembly (204), so that the hollow mould moves along a predetermined track during the moulding process, and the accuracy of the hollow structure forming position is ensured.

2. The reed bamboo processing apparatus according to claim 1, wherein: The reed processing equipment further comprises a three-dimensional motion driving assembly (300) and a material storage station (400), the three-dimensional motion driving assembly (300) can drive the hollow mould (203) to move in a three-dimensional space, and after the moulding is completed, the hollow mould (203) is used as a carrier to transport materials to the material storage station (400).

3. The reconstituted bamboo processing apparatus of claim 1 or 2, wherein: The mould mechanism (200) further comprises a vibration assembly (202), and the vibration assembly (202) is used for vibrating the hollow mould (203).

4. The reed bamboo processing apparatus of claim 3, wherein: The adjusting assembly (201) comprises a support main body (207) and an adjusting telescopic piece (205), the adjusting telescopic piece (205) is provided in at least six groups and is uniformly distributed in a circumferential shape on the support main body (207), and the center position of the circumference has an adjusting space for the hollow mould (203) to extend into.

5. The recombining bamboo processing apparatus according to any one of claims 1, 2, 4, wherein: The position recognition assembly (204) comprises a plurality of position sensors.

6. The reed bamboo processing apparatus of claim 2, wherein: The mould mechanism (200) is provided with two groups, which are arranged on the two sides of the moulding mechanism (100), and correspondingly, the three-dimensional motion driving assembly (300) is also provided with two groups.

7. The reed processing apparatus of any one of claims 1, 2, 4, wherein: The mould mechanism (200) comprises a plurality of hollow moulds (203).

8. The reed bamboo processing apparatus of claim 2, wherein: The material storage station (400) is provided with a stacking support body (403) and a positioning structure (402), and the material is placed on the stacking support body (403) and located in the positioning structure (402).

9. A method of processing reconstituted bamboo based on the reconstituted bamboo processing apparatus according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: The bamboo raw material is laid in the forming space (104), and the bamboo raw material after laying wraps the hollow mould (203) inside, at this time, the hollow mould (203) is in an initial set position; The moulding mechanism (100) is used for pressure forming the bamboo raw material, and the upper pressing plate (103) is pressed to apply pressure to the bamboo raw material; In the forming process, the density of the bamboo raw material gradually increases, the position of the hollow mold (203) changes, and finally the hollow mold (203) moves to the set position along the set track. When the position recognition assembly (204) recognizes that the hollow mold (203) deviates from the set track during the molding process, the position recognition assembly (204) sends an adjustment instruction, and the adjusting assembly (201) receives the adjustment instruction and performs an adjustment action. According to the required adjustment position, the hollow mold (203) is subjected to an adjustment force in the corresponding direction to return to the set track.

10. The method of claim 9, wherein: In the bamboo raw material paving step, after the bamboo raw material paving is completed, the vibration assembly (202) vibrates the hollow mold (203) at the initial set position, and the bamboo raw material reduces the gap under the action of vibration, thereby realizing stable support of the hollow mold (203). After molding is completed, the three-dimensional motion driving assembly (300) drives the formed raw material to move to the storage station (400) with the hollow mold (203) as the carrier. During transportation, the three-dimensional motion driving assembly (300) drives the hollow mold (203) to be demolded outward, and after the raw material is placed in the storage station (400), complete demolding is performed.

Citation Information

Patent Citations

  • Hollow recombined bamboo and its manufacturing method

    CN103182727B

  • Recombinant bamboo variable cross-section component manufacturing mold

    CN108608551A

  • Biocomposite Material

    US20080075900A1