Bamboo laminated wood hot-pressing device

By designing a bamboo composite hot pressing device with double-sided hot pressing and automatic conveying, the problems of uneven heating, slow speed and high energy consumption of bamboo strips were solved, realizing rapid and efficient hot pressing of bamboo strips or bamboo pieces.

CN223820708UActive Publication Date: 2026-01-23QINGDAO GUOSEN MACHINERY
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Patent Information

Application Number
CN202520178252.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-23
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

Existing bamboo hot pressing technology suffers from uneven heating, slow heating speed, and high energy consumption. Furthermore, conventional hot presses can only heat press one side at a time, which takes a long time.

Method used

A hot pressing device for bamboo laminated timber was designed. It adopts a double-sided hot pressing molding and automatic material conveying method. The upper and lower hot pressing plates are driven by a pneumatic cylinder to perform double-sided hot pressing on bamboo pieces or strips, and the materials are automatically conveyed by a conveyor belt.

Benefits of technology

It enables rapid double-sided hot pressing of bamboo strips or bamboo pieces, reducing hot pressing time, improving heating uniformity and efficiency, and reducing energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bamboo hot pressing, and discloses a bamboo laminated wood hot pressing device which comprises a conveying table and a supporting frame installed on the upper side of the conveying table, a conveying belt is installed on the inner wall of the conveying table, a containing groove is formed in the upper side of the conveying belt, and a lower hot pressing plate is installed on the inner wall of the containing groove. And a top plate is fixedly installed at the top of the supporting frame, a pneumatic cylinder is installed on the upper side of the top plate, the output end of the pneumatic cylinder penetrates through the inner wall of the top plate, an upper hot pressing plate is installed at the output end of the pneumatic cylinder, and the upper hot pressing plate is arranged over the lower hot pressing plate. Bamboo chips or bamboo canes are directly placed in the containing groove and conveyed to the position under the upper hot pressing plate through the conveying belt, the pneumatic cylinder drives the upper hot pressing plate to vertically move, the upper hot pressing plate can be fully contained in the inner wall of the containing groove, and the upper hot pressing plate and the lower hot pressing plate conduct double-face hot pressing on the bamboo chips or the bamboo canes respectively.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bamboo integrated material hot pressing technical field, concretely is a bamboo integrated material hot pressing device. BACKGROUND

[0002] Bamboo integrated material hot pressing is a process of manufacturing bamboo composite material, and its main process is called hot pressing forming. This process involves pressing treated and processed bamboo chips or bamboo strips under high temperature and high pressure conditions to form bamboo integrated material with higher strength and better performance. Through high temperature and high pressure treatment, the bending strength and tensile strength of bamboo integrated material are significantly improved, which is suitable for structural parts. Bamboo is a fast-growing renewable resource, and compared with traditional wood, the production of bamboo integrated material has less impact on the environment, which is helpful for sustainable development. Bamboo integrated material hot pressing is a process of bonding treated bamboo chips together under high temperature and high pressure to form a composite material with high strength, low deformation and good stability. It is widely used in building, furniture and decoration, etc. It is an important technology in modern material engineering.

[0003] The conventional bamboo chip hot pressing is generally directly hot pressing on one side of the bamboo chip, and the hot pressing time is long. The conventional hot pressing machine is heated by steam or heat conducting oil, which has the defects of uneven heating, slow heating speed and large energy consumption. Therefore, a bamboo integrated material hot pressing device with double-sided hot pressing forming and automatic material conveying is designed to solve the above problems. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a bamboo integrated material hot pressing device, which has the advantages of double-sided hot pressing forming and automatic material conveying, and solves the problems of long hot pressing time of conventional bamboo chip hot pressing, uneven heating, slow heating speed and large energy consumption of conventional hot pressing machine.

[0006] (II) Technical scheme

[0007] To achieve the aforementioned objectives of double-sided hot pressing and automatic material conveying, this utility model provides the following technical solution: a bamboo laminated timber hot pressing device, comprising a conveyor table and a support frame mounted on the upper side of the conveyor table, with support legs mounted on the lower side of the conveyor table. A conveyor belt is mounted on the inner wall of the conveyor table, and a placement groove is mounted on the upper side of the conveyor belt. A lower hot pressing plate is mounted on the inner wall of the placement groove, and limit baffles are mounted on both sides of the placement groove. A top plate is fixedly mounted on the top of the support frame, and a pneumatic cylinder is mounted on the upper side of the top plate. The output end of the pneumatic cylinder penetrates the inner wall of the top plate, and an upper hot pressing plate is mounted on the output end of the pneumatic cylinder, with the upper hot pressing plate positioned directly above the lower hot pressing plate. Bamboo pieces or strips are placed directly inside the placement trough, positioned above the lower hot press plate. A conveyor belt transports them directly below the upper hot press plate. A pneumatic cylinder drives the upper hot press plate to move vertically, ensuring it fully accommodates the inner wall of the placement trough. The upper and lower hot press plates perform double-sided hot pressing on the bamboo pieces or strips, significantly reducing the pressing time. Limiting baffles restrict and fix the position of the placement trough, ensuring it fully engages with the upper hot press plate and reducing the margin of error between positions. After hot pressing, the bamboo pieces or strips are then conveyed out via a conveyor belt.

[0008] Preferably, the output end of the pneumatic cylinder is fixedly mounted with a mounting plate, and multiple buffer springs are mounted on the lower side of the mounting plate. The lower end of the buffer spring is fixedly connected to one side of the upper hot pressing plate, and the upper end of the buffer spring is fixedly connected to the lower side of the mounting plate. The pneumatic cylinder is fixedly connected to the upper side of the mounting plate, and the pneumatic cylinder drives the mounting plate to move vertically. The upper hot pressing plate is fixedly connected to the lower side of the mounting plate through the buffer springs. The buffer springs can pre-press the bamboo strips to fix their position, and then the upper and lower hot pressing plates respectively heat-press both sides of the bamboo strips.

[0009] Preferably, a damper is installed inside the buffer spring, and the two ends of the damper are respectively connected to the two ends of the buffer spring. A soft protective cover is installed between the mounting plate and the upper hot-pressing plate, and the buffer spring is disposed inside the soft protective cover. The damper can slow down the reset of the buffer spring, thus slowing down the reset of the upper hot-pressing plate. The soft protective cover is made of rubber and is compressible. When the upper and lower hot-pressing plates are combined, the protective cover is compressed. The soft protective cover is mainly used to protect the buffer spring and the damper, allowing them to operate in a closed environment, and it can slow down the oxidation of the spring.

[0010] Preferably, connecting shafts are installed at both ends of the limiting baffle, and the connecting shafts are rotatably connected to the inner wall of the support frame. A micro geared motor is installed on the outer side of the support frame, and the output end of the micro geared motor passes through the inner wall of the support frame. The output end of the micro geared motor is fixedly connected to one end of the connecting shaft. The limiting baffle is controlled by the micro geared motor. Two limiting baffles are provided, located on both sides of the support frame. One baffle is used to limit the position of the placement slot when it is conveyed into the interior of the support frame. The other limiting baffle can be used in conjunction with the micro geared motor to limit the position of the placement slot, facilitating the cooperation of the upper and lower hot press plates. The micro geared motor drives the connecting shaft to rotate, causing the connecting shaft to drive the limiting baffle to rotate. The rotation angle of the limiting baffle is up to 180°, which allows the placement slot to pass through normally.

[0011] Preferably, a conveyor roller is installed on the inner wall of the conveyor platform, and a conveyor belt is installed on the outer side of the conveyor roller. A fixed frame is installed on the outer side of the conveyor platform, and a conveyor motor is installed inside the fixed frame. The output end of the conveyor motor passes through the inner wall of the conveyor platform and is fixedly connected to one end of the conveyor roller. The conveyor roller drives the conveyor belt to operate inside the conveyor platform, so that the placement groove is installed on the upper side of the conveyor belt. The conveyor belt itself is made of rigid material, and a support plate is provided inside the conveyor belt, which can increase the overall stability of the conveyor belt and facilitate the hot pressing operation of bamboo strips. The conveyor motor is installed on the outer side of the conveyor platform, which drives the conveyor roller to rotate, so that it drives the conveyor belt to operate normally. The friction between the conveyor roller and the conveyor belt is sufficient for it to operate normally directly.

[0012] Preferably, a placement plate is fixedly installed on the inner wall of the conveyor table, and the placement plate is located at one end of the conveyor belt. The hot-pressed bamboo strips can be placed on the upper side of the placement plate for cooling, and when a certain number are accumulated, they can be processed uniformly.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a hot pressing device for bamboo laminated timber, which has the following beneficial effects: This hot pressing device for bamboo laminated timber places bamboo pieces or strips directly inside the placement groove, placing them on the upper side of the lower hot pressing plate. The conveyor belt transports them to the lower side of the upper hot pressing plate. The pneumatic cylinder drives the upper hot pressing plate to move vertically, so that the upper hot pressing plate can fully accommodate the inner wall of the placement groove. Then, the upper and lower hot pressing plates respectively perform double-sided hot pressing on the bamboo pieces or strips. The limiting baffle restricts and fixes the position of the placement groove, so that it can fully combine with the upper hot pressing plate. After the bamboo pieces and strips are hot pressed, they are transported out by the conveyor belt, thereby achieving the effects of double-sided hot pressing and automatic material conveying. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the present utility model;

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is a diagram showing the internal structure of the support frame of this utility model;

[0018] Figure 4 This is an exploded structural diagram of the hot pressing mechanism of this utility model.

[0019] In the diagram: 1. Conveyor platform; 2. Support leg; 3. Support frame; 4. Top plate; 5. Conveyor belt; 6. Placement plate; 7. Lower hot press plate; 8. Upper hot press plate; 9. Pneumatic cylinder; 10. Limiting baffle; 11. Fixing frame; 12. Conveyor motor; 13. Conveyor roller; 14. Connecting shaft; 15. Miniature geared motor; 16. Mounting plate; 17. Soft protective cover; 18. Buffer spring; 19. Placement groove; 20. Damper. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1-4 A hot pressing device for bamboo laminated timber includes a conveyor table 1 and a support frame 3 mounted on the upper side of the conveyor table 1. Support legs 2 are mounted on the lower side of the conveyor table 1. A conveyor belt 5 is mounted on the inner wall of the conveyor table 1. A placement groove 19 is mounted on the upper side of the conveyor belt 5. A lower hot pressing plate 7 is mounted on the inner wall of the placement groove 19. Limiting baffles 10 are respectively mounted on both sides of the placement groove 19. A top plate 4 is fixedly mounted on the top of the support frame 3. A pneumatic cylinder 9 is mounted on the upper side of the top plate 4. The output end of the pneumatic cylinder 9 penetrates the inner wall of the top plate 4. An upper hot pressing plate 8 is mounted on the output end of the pneumatic cylinder 9. The upper hot pressing plate 8 is positioned directly above the lower hot pressing plate 7.

[0022] In this process, bamboo pieces or strips are placed directly inside the placement trough 19, positioned above the lower hot press plate 7. The conveyor belt 5 transports them to the area directly below the upper hot press plate 8. The pneumatic cylinder 9 drives the upper hot press plate 8 to move vertically, ensuring that the upper hot press plate 8 can fully accommodate the inner wall of the placement trough 19. The upper hot press plate 8 and the lower hot press plate 7 perform double-sided hot pressing on the bamboo pieces or strips, which can greatly reduce the hot pressing time. The limiting baffle 10 can restrict and fix the position of the placement trough 19, allowing it to fully combine with the upper hot press plate 8 and reducing the error rate between their positions. After the bamboo pieces and strips are hot pressed, they are then transported out by the conveyor belt 5.

[0023] A mounting plate 16 is fixedly installed at the output end of the pneumatic cylinder 9, and multiple buffer springs 18 are installed on the lower side of the mounting plate 16. The lower end of the buffer spring 18 is fixedly connected to one side of the upper hot press plate 8, and the upper end of the buffer spring 18 is fixedly connected to the lower side of the mounting plate 16.

[0024] Among them, the pneumatic cylinder 9 is fixedly connected to the upper side of the mounting plate 16. The pneumatic cylinder 9 drives the mounting plate 16 to move vertically. The upper hot pressing plate 8 is fixedly connected to the lower side of the mounting plate 16 through the buffer spring 18. The buffer spring 18 can pre-press the bamboo strip and fix the position of the bamboo strip. Then the upper hot pressing plate 8 and the lower hot pressing plate 7 respectively heat press the two sides of the bamboo strip.

[0025] A damper 20 is installed inside the buffer spring 18, and the two ends of the damper 20 are respectively connected to the two ends of the buffer spring 18. A soft protective cover 17 is installed between the mounting plate 16 and the upper hot press plate 8, and the buffer spring 18 is located inside the soft protective cover 17.

[0026] The damper 20 can slow down the reset of the buffer spring 18, which in turn slows down the reset of the upper hot plate 8. The soft protective cover 17 is made of rubber and can be compressed. When the upper hot plate 8 and the lower hot plate 7 are combined, the protective cover will be compressed. The soft protective cover 17 is mainly used to protect the buffer spring 18 and the damper 20, so that they can operate in a closed environment and slow down the oxidation of the spring.

[0027] The limiting baffle 10 is equipped with connecting shafts 14 at both ends, and the connecting shafts 14 are rotatably connected to the inner wall of the support frame 3. A micro geared motor 15 is installed on the outer side of the support frame 3, and the output end of the micro geared motor 15 passes through the inner wall of the support frame 3. The output end of the micro geared motor 15 is fixedly connected to one end of the connecting shaft 14.

[0028] The limiting baffle 10 is controlled by a micro geared motor 15. There are two limiting baffles 10, which are located on both sides of the support frame 3. One of them is used to limit the position of the placement groove 19 when it is transported into the support frame 3. The other limiting baffle 10 can be used in conjunction with it to limit the position of the placement groove 19, so that the upper hot press plate 8 and the lower hot press plate 7 can be used together. The micro geared motor 15 drives the connecting shaft 14 to rotate, so that the connecting shaft 14 drives the limiting baffle 10 to rotate. The rotation angle of the limiting baffle 10 is up to 180°, which allows the placement groove 19 to pass through normally.

[0029] The inner wall of the conveyor platform 1 is equipped with a conveyor roller 13, and the conveyor belt 5 is installed on the outer side of the conveyor roller 13. A fixed frame 11 is installed on the outer side of the conveyor platform 1, and a conveyor motor 12 is installed inside the fixed frame 11. The output end of the conveyor motor 12 passes through the inner wall of the conveyor platform 1 and is fixedly connected to one end of the conveyor roller 13.

[0030] The conveyor roller 13 drives the conveyor belt 5 to operate inside the conveyor table 1, so that the placement groove 19 is installed on the upper side of the conveyor belt 5. The conveyor belt 5 itself is made of rigid material, and the conveyor belt 5 is provided with a support plate inside, which can increase the overall stability of the conveyor belt 5 and facilitate the hot pressing operation of bamboo strips. The conveyor motor 12 is installed on the outside of the conveyor table 1, which drives the conveyor roller 13 to rotate, so that it drives the conveyor belt 5 to operate normally. The friction between the conveyor roller 13 and the conveyor belt 5 is sufficient to make it operate normally directly.

[0031] A placement plate 6 is fixedly installed on the inner wall of the conveyor table 1, and the placement plate 6 is located at one end of the conveyor belt 5.

[0032] The hot-pressed bamboo strips can be placed on the upper side of the placement plate 6 for cooling. Once a certain number have been accumulated, they can be processed uniformly.

[0033] Working principle: Bamboo strips or pieces are placed directly inside the placement groove 19, positioned above the lower hot press plate 7. The conveyor belt 5 transports them to the underside of the upper hot press plate 8. The pneumatic cylinder 9 drives the upper hot press plate 8 to move vertically, ensuring it is fully accommodated against the inner wall of the placement groove 19. The pneumatic cylinder 9 also drives the mounting plate 16 to move vertically. The upper hot press plate 8 is fixedly connected to the lower side of the mounting plate 16 via a buffer spring 18. The buffer spring 18 pre-presses the bamboo strips, fixing their position. Then, the upper and lower hot press plates 8 and 7 respectively heat-press both sides of the bamboo strips, significantly reducing the heat-pressing time. The micro geared motor 15 drives the connecting shaft 14 to rotate, which in turn drives the limiting baffle 10 to rotate, allowing it to fully engage with the upper hot press plate 8. The limiting baffle 10 can rotate up to 180°, allowing the placement groove 19 to pass through normally and reducing the error rate between its positions. After the bamboo strips and bamboo pieces are hot-pressed, they are conveyed out by the conveyor belt 5. The conveyor motor 12 is installed on the outside of the conveyor table 1, which drives the conveyor roller 13 to rotate, thus driving the conveyor belt 5 to run normally. The hot-pressed bamboo strips can be placed on the upper side of the placement plate 6 for cooling. When a certain number are accumulated, they can be processed uniformly.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot pressing device for bamboo laminated timber, comprising a conveyor table (1) and a support frame (3) mounted on the upper side of the conveyor table (1), wherein a support leg (2) is mounted on the lower side of the conveyor table (1), characterized in that: The inner wall of the conveyor platform (1) is equipped with a conveyor belt (5), and a placement groove (19) is installed on the upper side of the conveyor belt (5). The inner wall of the placement groove (19) is equipped with a lower hot press plate (7), and limit baffles (10) are installed on both sides of the placement groove (19). A top plate (4) is fixedly installed on the top of the support frame (3), and a pneumatic cylinder (9) is installed on the upper side of the top plate (4). The output end of the pneumatic cylinder (9) penetrates the inner wall of the top plate (4). An upper hot press plate (8) is installed on the output end of the pneumatic cylinder (9), and the upper hot press plate (8) is located directly above the lower hot press plate (7).

2. The hot pressing device for bamboo laminated timber according to claim 1, characterized in that: The output end of the pneumatic cylinder (9) is fixedly mounted with a mounting plate (16), and a plurality of buffer springs (18) are mounted on the lower side of the mounting plate (16). The lower end of the buffer spring (18) is fixedly connected to one side of the upper hot plate (8), and the upper end of the buffer spring (18) is fixedly connected to the lower side of the mounting plate (16).

3. The hot pressing device for bamboo laminated timber according to claim 2, characterized in that: The buffer spring (18) is equipped with a damper (20), and the two ends of the damper (20) are respectively connected to the two ends of the buffer spring (18). A soft protective cover (17) is installed between the mounting plate (16) and the upper hot press plate (8), and the buffer spring (18) is located inside the soft protective cover (17).

4. The hot pressing device for bamboo laminated timber according to claim 1, characterized in that: The limiting baffle (10) is equipped with connecting shafts (14) at both ends, and the connecting shafts (14) are rotatably connected to the inner wall of the support frame (3). A micro geared motor (15) is installed on the outer side of the support frame (3), and the output end of the micro geared motor (15) passes through the inner wall of the support frame (3). The output end of the micro geared motor (15) is fixedly connected to one end of the connecting shaft (14).

5. The hot pressing device for bamboo laminated timber according to claim 1, characterized in that: The inner wall of the conveyor platform (1) is equipped with a conveyor roller (13), and the conveyor belt (5) is installed on the outside of the conveyor roller (13). A fixed frame (11) is installed on the outside of the conveyor platform (1), and a conveyor motor (12) is installed inside the fixed frame (11). The output end of the conveyor motor (12) passes through the inner wall of the conveyor platform (1) and is fixedly connected to one end of the conveyor roller (13).

6. The hot pressing device for bamboo laminated timber according to claim 1, characterized in that: The inner wall of the conveyor (1) is fixedly installed with a placement plate (6), and the placement plate (6) is located at one end of the conveyor belt (5).