Single-layer thin bamboo sheet hot-pressing gradual arc forming machine and method thereof

Abstract

The present application provides a single-layer thin bamboo sheet hot-pressing gradual arc forming machine and method thereof, comprising: a rack, a hot-pressing forming machine provided with a hydraulic mechanism, a gradual arc mechanism and a moving mechanism; the gradual arc mechanism is provided with a plurality of gradual arc groove bodies, the radii of the gradual arc groove bodies are sequentially increased along a first direction, and the gradual arc mechanism is configured to sequentially transport the bamboo sheet to be processed from the first gradual arc groove body to the last semicircular groove body; the hydraulic mechanism is configured to press down to adhere to the gradual arc mechanism when the bamboo sheet to be processed enters the gradual arc groove body each time; the moving mechanism is configured to transfer the bamboo sheet to be processed to the next gradual arc groove body when the hydraulic mechanism retreats, and retreat to the initial position; the hot-pressing forming machine is further provided with a controller, and the output end of the controller is electrically connected with the hydraulic mechanism and the moving mechanism; the present application effectively reduces the cracking of the bamboo sheet through gradual arc step-by-step pressing, accurately controls the size, simultaneously realizes multi-station synchronous processing, greatly improves the production efficiency, and is suitable for batch production of large-diameter bamboo straws.

Description

Technical Field

[0001] This invention relates to the field of hot pressing semi-circular forming technology for single-layer thin bamboo strips, and in particular to a hot pressing gradient arc forming machine and method for single-layer thin bamboo strips. Background Technology

[0002] Bamboo daily necessities, manufactured using a thin bamboo strip semi-circular hot-pressing process, showcase natural and environmentally friendly advantages. Bamboo, as an excellent natural renewable resource, grows extremely quickly, ensuring a stable and sustainable supply of raw materials for bamboo daily necessities and effectively reducing dependence on non-renewable resources. The thin bamboo strip semi-circular hot-pressing process fully utilizes the characteristics of bamboo while ensuring the structural stability and ease of use of the bamboo straws. Bamboo daily necessities decompose naturally into organic matter in a short time after disposal, unlike plastic daily necessities which cause long-term environmental pollution. As an ideal alternative to plastic straws, they can significantly reduce plastic usage, mitigating the damage of plastic pollution to ecosystems at its source and contributing significantly to solving the global plastic pollution problem.

[0003] Existing bamboo daily necessities include bamboo straws, such as the grooved bamboo straw manufacturing process disclosed in Chinese Patent No. CN116442344A. This process involves using a specially designed hot-pressing mold to press equally spaced grooves into the low-density surface of the softened bamboo strips, first and second pieces of bamboo, and then gluing the two grooved bamboo strips together to form a bamboo board with an inner hole. After being equally spaced, the board is cut into hollow bamboo straws. However, the physical properties of bamboo during hot pressing may make it difficult to control the depth and width of the grooves, resulting in a low yield rate. Furthermore, the limited plasticity and ductility of bamboo can lead to cracking. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a hot-pressing gradient arc forming machine and method for single-layer bamboo strips, which can effectively solve the aforementioned problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] This invention provides a hot-pressing gradient arc forming machine for single-layer thin bamboo strips, comprising:

[0007] A frame, a hot press forming machine configured inside the frame and adapted to the frame, wherein the hot press forming machine is provided with a hydraulic mechanism, a gradient arc mechanism and a moving mechanism from top to bottom;

[0008] The gradient arc mechanism is provided with multiple gradient arc grooves, wherein the curvature of the gradient arc grooves increases sequentially along a first direction, the first gradient arc groove is straight, and the last gradient arc groove is semi-circular. The gradient arc mechanism is configured to transport the bamboo strips to be processed sequentially from the first gradient arc groove to the last semi-circular groove along the first direction.

[0009] The hydraulic mechanism is configured to press down until it fits against the gradient arc mechanism each time the bamboo strip to be processed enters the gradient arc groove;

[0010] The moving mechanism is configured to transfer the bamboo strip to be processed to the next gradient arc groove and return to the initial position when the hydraulic mechanism retracts;

[0011] The hot press molding machine is also equipped with a controller, the output of which is electrically connected to the hydraulic mechanism and the moving mechanism.

[0012] As a further improvement, the hydraulic mechanism is equipped with a hydraulic cylinder, which is fixedly mounted on the frame. The output end of the hydraulic cylinder is equipped with a flange, which is connected to an upper support plate. First guide rods are slidably mounted on both sides of the upper support plate, and a lower support plate is fixedly mounted on the other end of the first guide rods. A gradient arc mechanism is mounted on the lower support plate.

[0013] As a further improvement, the gradient arc mechanism includes an upper mold and a lower mold. A support plate is provided in the middle of the lower mold. A support plate pad is slidably provided on the side of the support plate away from the upper mold. A cylinder is provided on the support plate pad. First guide rails are provided on both sides of the support plate pad on the cylinder. A first slider is provided on each of the first guide rails.

[0014] As a further improvement, the lower mold is connected to a heating plate on the side away from the upper mold, and an arc pressing station group is formed on the side of the lower mold close to the upper mold. The lifting plate is formed with a docking group at the position corresponding to the arc pressing station group.

[0015] As a further improvement, the upper mold is provided with a plurality of positioning posts on the side near the lower mold.

[0016] As a further improvement, the moving mechanism includes a servo transverse slide and a servo longitudinal slide. The servo transverse slide is provided with a transverse linkage plate. The other end of the transverse linkage plate is connected to a transverse support. The transverse support is provided with a plurality of second guide rails on the side away from the transverse linkage plate. Each second guide rail is provided with a second slider. The second guide rail is provided with a base plate on the side away from the transverse support.

[0017] As a further improvement, the moving mechanism is provided with a vertical linkage plate, and the other end of the vertical linkage plate is connected to a rising bracket, and the rising bracket is provided with a second guide rod at both ends.

[0018] As a further improvement, the transverse support is provided with a holding component on the side away from the servo transverse slide. The holding component includes a lifting component and a transverse pushing component. The lifting component is connected to the transverse support, the output end of the lifting component is connected to the transverse pushing component, and the output end of the transverse pushing component is provided with a holding component.

[0019] A method for using a hot-pressing gradient arc forming machine for single-layer thin bamboo strips includes the following steps:

[0020] S1, Soak the bamboo strips to be processed in boiling water;

[0021] S2, place the soaked bamboo strips on the arc pressing station of the lower mold, and heat the upper and lower molds with heat transfer oil;

[0022] S3, the controller drives the servo longitudinal slide to push the lifting bracket to move upward, thereby lifting the lifting plate and lifting the bamboo strip. Then, it drives the servo transverse slide to push the transverse support to move, thereby lifting the lifting plate horizontally. The controller then drives the servo longitudinal slide to push the lifting bracket to move downward, thereby lifting the lifting plate downward, so that the bamboo strip is transferred from the previous pressing station to the next pressing station. The controller then drives the transverse push assembly to press the lower mold.

[0023] S4, the controller drives the servo longitudinal slide to move the lifting bracket downward and lower the lifting plate so that the lifting plate is separated from the bamboo strip. Then, the controller drives the servo transverse slide to move the transverse support and move the lifting plate back. The controller drives the servo longitudinal slide to move the lifting bracket upward and raise the lifting plate until the lifting plate contacts the bamboo strip. The controller drives the cylinder to push the lifting plate pad to the bottom of the lifting plate.

[0024] S5, the controller drives the hydraulic cylinder to push the upper support plate downward, causing the upper mold to descend until it fits with the lower mold, completing the bamboo strip pressing, and then reset.

[0025] The beneficial effects of this invention are:

[0026] Compared to the traditional one-time pressing with a semi-circular mold, this invention achieves the gradual arc distribution pressing of bamboo strips by setting multiple pressing stations with progressively increasing curvature in a gradual arc mechanism. Each station only makes a small curvature adjustment to the bamboo strip, gradually releasing internal stress, effectively avoiding cracking caused by large deformation at one time, significantly reducing the scrap rate that may occur during the production process, and reducing the waste of bamboo materials.

[0027] Compared to the traditional method of pressing multiple semi-circular grooves on a whole bamboo strip, this invention adopts an independent pressing mode for a single semi-circular groove. Through the precise cooperation of the upper and lower molds of the gradient arc mechanism, combined with the stable temperature control of the heating plate, the depth, width, and curvature of a single semi-circular groove can be precisely controlled, ensuring the consistency of the forming of each bamboo strip and greatly improving the product yield.

[0028] This invention, through the gradient arc distribution pressing design of the gradient arc mechanism, can adapt to different inner diameter requirements by adjusting the curvature parameters of the lower die pressing arc station. It solves the problem of small diameter of round bamboo daily necessities caused by the plasticity and ductility of bamboo material in one-time molding process. A single pressing can produce bamboo daily necessities with larger inner diameter by adjusting the concave die.

[0029] The multi-stage pressing station of the gradient arc mechanism of the present invention can simultaneously press six different curved bamboo strips with different curvatures, forming a continuous production process, greatly shortening the processing cycle of semi-circular forming of a single bamboo strip, and significantly improving the production efficiency of round bamboo daily necessities. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and its method according to the present invention.

[0032] Figure 2 This is a schematic diagram of the hydraulic mechanism structure of a hot-pressing gradient arc forming machine and method for single-layer thin bamboo strips according to the present invention.

[0033] Figure 3 This is a cross-sectional schematic diagram of the hydraulic mechanism structure of a hot-pressing gradient arc forming machine and method for single-layer thin bamboo strips according to the present invention.

[0034] Figure 4 This is a schematic diagram of the gradient arc mechanism structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and method according to the present invention.

[0035] Figure 5 This is an exploded view of the gradient arc mechanism structure of the hot-pressing gradient arc forming machine and method for single-layer thin bamboo strips according to the present invention.

[0036] Figure 6 This is a schematic diagram of the support structure of a single-layer thin bamboo strip hot-pressing gradient arc forming machine and method of the present invention.

[0037] Figure 7 This is a schematic diagram of the moving mechanism structure of a hot-pressing gradient arc forming machine and method for single-layer thin bamboo strips according to the present invention.

[0038] Figure 8 This is an exploded view of the moving mechanism structure of the hot-pressing gradient arc forming machine and method for single-layer thin bamboo strips according to the present invention.

[0039] In the picture:

[0040] 1-Rack,

[0041] 10-Hydraulic mechanism, 101-Hydraulic cylinder, 102-Flange, 103-Upper support plate, 104-First guide rod, 105-Lower support plate

[0042] 20-Gradual arc mechanism, 201-Upper mold, 2011-Positioning pin, 202-Lower mold, 2021-First rectangular groove, 2022-First recessed groove, 2023-Second recessed groove, 2024-Third recessed groove, 2025-Fourth recessed groove, 2026-Fifth recessed groove, 2027-Sixth recessed groove, 2028-Seventh recessed groove, 203-Lifting plate, 2031-Second rectangular groove, 2032-First docking groove, 2033-Second docking groove, 2034-Third docking groove, 2035-Fourth docking groove, 2036-Fifth docking groove, 2037-Sixth docking groove, 204-Heating plate, 205-Lifting plate pad, 206-Cylinder, 207-First guide rail.

[0043] 30-Moving mechanism. 301-Rising support, 302-Horizontal linkage plate, 303-Vertical linkage plate, 304-Servo transverse slide, 305-Second guide rod, 306-Transverse support, 307-Second guide rail, 308-Second slider, 309-Base plate, 3010-Servo longitudinal slide, 3011-Lifting assembly, 3012-Transverse push assembly. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] Reference Figure 1 As shown, a single-layer thin bamboo strip hot-pressing gradient arc forming machine includes:

[0047] A frame 1, a hot press forming machine configured inside and adapted to the frame 1, the hot press forming machine having a hydraulic mechanism 10, a gradient arc mechanism 20, and a moving mechanism 30 arranged sequentially from top to bottom; the gradient arc mechanism 20 has multiple gradient arc grooves, wherein the curvature of the gradient arc grooves increases sequentially along a first direction, the first gradient arc groove is straight, and the last gradient arc groove is semi-circular, the gradient arc mechanism 20 is configured to transport the bamboo strips to be processed from the first gradient arc groove to the last semi-circular groove sequentially along the first direction; the hydraulic mechanism 10 is configured to press down to the gradient arc groove each time the bamboo strips to be processed enter the gradient arc groove. The arc mechanism 20 is used for bonding; the moving mechanism 30 is configured to transfer the bamboo strip to be processed to the next gradient arc groove when the hydraulic mechanism 10 retracts, and then retract to the initial position; the hot press forming machine is also equipped with a controller, the output of which is electrically connected to the hydraulic mechanism 10 and the moving mechanism 30. By setting multiple arc pressing stations with progressively increasing curvature in the gradient arc mechanism 20, the gradual arc distribution pressing of the bamboo strip is achieved. Each station only makes a small curvature adjustment to the bamboo strip, gradually releasing internal stress, effectively avoiding cracking caused by large deformation at one time, significantly reducing the scrap rate that may occur during the production process, and reducing the waste of bamboo materials.

[0048] Furthermore, referring to Figure 2-3As shown, a hydraulic mechanism 10 is provided to provide stable pressing power. The hydraulic mechanism 10 includes a hydraulic cylinder 101, which is fixedly mounted on the frame 1. A flange 102 is provided at the output end of the hydraulic cylinder 101. A hydraulic rod is installed inside the hydraulic cylinder 101, and the hydraulic rod is completely secured in the spherical arc-shaped groove of the flange 102 via a semi-circular structure at its front end. The structure is reliable and stable. The spherical hinge eliminates gaps caused by surface wear at the hinge point, satisfying the complex relative movement between the hydraulic cylinder 101 and the upper support plate 103. The flange 102 is connected to the upper support plate 103. The upper support plate 103 is connected to the upper mold 201. The upper support plate 103 is slidably provided with the first guide rods 104 on both sides. The first guide rods 104 are used to make the upper support plate 103 move stably. The other end of the first guide rods 104 is fixedly provided with the lower support plate 105. The lower support plate 105 is provided with the gradient arc mechanism 20. During operation, the hydraulic cylinder 101 drives the upper support plate 103 to rise and fall vertically along the first guide rods 104 through the flange 102, thereby driving the upper mold 201 of the gradient arc mechanism 20 to complete the pressing and resetting action. The first guide rods 104 ensure the stability of the movement process and avoid deviation.

[0049] Furthermore, referring to Figure 4-6As shown, to prevent the bamboo strips from cracking during pressing, a gradient arc mechanism 20 is provided. The gradient arc mechanism 20 includes an upper mold 201 and a lower mold 202. A support plate 203 is provided in the middle of the lower mold 202. A support plate pad 205 is slidably provided on the side of the support plate 203 away from the upper mold 201. The support plate pad 205 is used to provide support for the support plate 203 when pressing the bamboo strips, so that the bamboo strips are subjected to uniform force during pressing. A cylinder 206 is provided on the support plate pad 205. First guide rails 207 are provided on both sides of the cylinder 206. A first slider is provided on each first guide rail 207. The lower mold 202 is connected to a heating plate 204 on the side away from the upper mold 201. The lower mold 202 has multiple gradient arc grooves on the side closest to the upper mold 201. These grooves include a first rectangular groove 2021, a first recessed groove 2022, a second recessed groove 2023, a third recessed groove 2024, a fourth recessed groove 2025, a fifth recessed groove 2026, a sixth recessed groove 2027, and a seventh recessed groove 2028. The lower mold 202 is provided with the first rectangular groove 2021 and the first recessed groove 2022 sequentially from the first end to the second end. The grooves 2022, 2023, 2024, 2025, 2026, 2027, and 2028 have progressively increasing curvatures, culminating in the bamboo strip being pressed into a semi-circular shape at the seventh groove 2028. The supporting plate 203 forms docking groups at positions corresponding to these multiple gradually changing arc grooves. These docking groups include a second rectangular groove 2031, a first docking groove 2032, a second docking groove 2033, a third docking groove 2034, and a fourth docking groove 2028. 35. Fifth docking groove 2036, sixth docking groove 2037. The lifting plate 203, corresponding to the first end position of the lower mold 202, is sequentially provided with a second rectangular groove 2031, a first docking groove 2032, a second docking groove 2033, a third docking groove 2034, a fourth docking groove 2035, a fifth docking groove 2036, and a sixth docking groove 2037 from the first end to the second end. That is, in the initial state, the second rectangular groove 2031 is aligned with the first rectangular groove 2021, and the first docking groove 2032 is aligned with the first groove 2037. Alignment is achieved as follows: the second mating groove 2033 aligns with the second groove 2023, the third mating groove 2034 aligns with the third groove 2024, the fourth mating groove 2035 aligns with the fourth groove 2025, the fifth mating groove 2036 aligns with the fifth groove 2026, and the sixth mating groove 2037 aligns with the sixth groove 2027. To ensure precise alignment of the bamboo strips during transfer, the upper mold 201 is provided with multiple positioning posts 2011 on the side near the lower mold 202 to further ensure positional accuracy during pressing.

[0050] The lower mold 202 is connected to a heating plate 204 on the side away from the upper mold 201. The heating plate 204 has a channel for circulating heat transfer medium. The heating plate 204 is connected to a heating device. When in use, the heating device inputs heat transfer medium into the channel in the heating plate 204 to heat the arc pressing station group of the lower mold 202. In order to improve the uniform heating of the bamboo strip during arc pressing, a medium channel is provided in the upper mold 201 and connected to the heating device. When in use, heat transfer medium is introduced into the medium channel to heat the upper mold 201. In this embodiment, heat transfer medium is preferably heat transfer oil. The upper mold 201 is provided with a matching pressing block on the side close to the lower mold 202 at the position corresponding to the arc pressing station group.

[0051] Furthermore, referring to Figure 7-8 As shown, in order to achieve the gradual arc distribution pressing of the bamboo strips, a moving mechanism 30 is provided. The moving mechanism 30 includes a servo transverse slide 304 and a servo longitudinal slide 3010. The servo transverse slide 304 is provided with a transverse linkage plate 302. The other end of the transverse linkage plate 302 is connected to a transverse support 306. The transverse support 306 is connected to the servo longitudinal slide 3010. The transverse support 306 has multiple second guide rails 307 on the side away from the transverse linkage plate 302. Each second guide rail 307 is provided with a second slider 308. A base plate 309 is provided on the side of the second guide rail 307 away from the transverse support 306. The moving mechanism 30 is provided with a vertical linkage plate 303. A through hole is provided on the transverse support 306 for the vertical linkage plate 303 to pass through. One end of the vertical linkage plate 303 is connected to a servo longitudinal slide table 3010, and the other end is connected to a rising bracket 301. The rising bracket 301 has second guide rails at both ends. Rod 305, lifting bracket 301 connected to lifting plate 203, transverse support 306 with a holding assembly on the side away from servo transverse slide 304, the holding assembly includes lifting assembly 3011 and transverse push assembly 3012, lifting assembly 3011 is fixedly connected to transverse support 306 by bracket, a connecting plate is provided between lifting assembly 3011 and vertical linkage plate 303, the output end of lifting assembly 3011 is connected to transverse push assembly 3012, transverse push assembly 301... The output end of 2 is equipped with a holding component. When the servo longitudinal slide 3010 moves downward, the vertical linkage plate 303 drives the lifting bracket 301 to descend, and the connecting plate drives the lifting component 3011 to descend together. The lifting component 3011 drives the horizontal push component 3012 to lift, and the horizontal push component 3012 drives the holding component to push it towards the lower mold 202, so that the holding component presses on the bamboo strip and prevents the bamboo strip from falling off when the lifting plate 203 moves.

[0052] Specific embodiments of the present invention:

[0053] Bamboo strips are soaked in boiling water at 90℃~100℃ for 30 minutes to 1 hour. Before placing the bamboo strips, the heating device is driven to deliver heat transfer medium to the lower mold 202 and upper mold 201. After the lower mold 202 and upper mold 201 are heated to the predetermined temperature, the bamboo strips are placed on the first rectangular groove 2021. The servo longitudinal slide 3010 is driven to move upward, which drives the lifting bracket 301 through the vertical linkage plate 303, thereby driving the lifting plate 203 to lift. The lifting plate 203 lifts the bamboo strips placed in the second rectangular groove 2031, and the servo horizontal slide 3010 is driven to move upward. The sliding table 304 moves, driving the transverse support 306 to move via the transverse linkage plate 302, which in turn drives the lifting plate 203 to move toward the first groove 2022. This drives the servo longitudinal sliding table 3010 to move downwards, driving the lifting bracket 301 to descend via the vertical linkage plate 303. The lifting plate 203 places the bamboo strip placed in the second rectangular groove 2031 into the first groove 2022. At this time, the lifting assembly 3011 is driven to lift the transverse push assembly 3012, and the pressing member on the transverse push assembly 3012 extends, causing the pressing member to be in a position... The lower mold 202 presses down on one side of the bamboo strip. At this time, the servo longitudinal slide 3010 continues to move downward, causing the lifting plate 203 to detach from the bamboo strip. The servo transverse slide 304 moves, causing the lifting plate 203 to move towards the first rectangular groove 2021. The servo longitudinal slide 3010 moves upward, causing the first docking groove 2032 of the lifting plate 203 to contact the bamboo strip and make the first docking groove 2032 level with the first groove 2022. The lateral push assembly 3012 is driven to retract the pressing member to the initial state, and the cylinder 206 is driven to press the lifting plate pad. Block 205 extends below the support plate 203, driving the hydraulic cylinder 101 to move the upper support plate 103 downward, causing the upper mold 201 to approach the lower mold 202 until they fit together. The bamboo strip is pressed into an arc shape by the cooperation of the upper mold 201 pressing block and the first groove 2022 of the lower mold 202. The pressing time is 10 seconds. When the upper mold 201 and the support plate pad block 205 are reset, the previous operation is repeated to transfer the bamboo strip from the first groove 2022 to the second groove 2023. Before this, a new bamboo strip to be processed can be placed into the first rectangular groove 2021.

[0054] Furthermore, a method for using a single-layer thin bamboo strip hot-pressing gradient arc forming machine includes the following steps:

[0055] S1, Soak the bamboo strips to be processed in boiling water;

[0056] S2, place the soaked bamboo strips on the arc pressing station of the lower mold 202, and heat the upper mold 201 and the lower mold 202 using heat-conducting oil;

[0057] S3, the controller drives the servo longitudinal slide 3010 to push the lifting bracket 301 to move upward, thereby lifting the lifting plate 203 and lifting the bamboo strip. Then, the controller drives the servo transverse slide 304 to push the transverse support 306 to move, thereby lifting the lifting plate 203 to move horizontally. The controller drives the servo longitudinal slide 3010 to drive the lifting bracket 301 to move downward, thereby lifting the lifting plate 203 to descend, so that the bamboo strip is transferred from the previous pressing position to the next pressing position. The controller drives the transverse push assembly 3012 to press the lower mold 202.

[0058] S4, the controller drives the servo longitudinal slide 3010 to move the lifting bracket 301 downward, causing the lifting plate 203 to descend and detach from the bamboo strip. Then, the controller drives the servo transverse slide 304 to push the transverse support 306 to move, causing the lifting plate 203 to move back. The controller then drives the servo longitudinal slide 3010 to move the lifting bracket 301 upward, causing the lifting plate 203 to rise until it contacts the bamboo strip. Finally, the controller drives the cylinder 206 to push the lifting plate pad 205 below the lifting plate 203.

[0059] S5, the controller drives the hydraulic cylinder 101 to push the upper support plate 103 downward, causing the upper mold 201 to descend until it fits with the lower mold 202, completing the bamboo strip pressing, and then resetting.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A hot-pressing gradient arc forming machine for single-layer thin bamboo strips, characterized in that, include: A frame (1), a hot press forming machine configured inside the frame (1) and adapted to the frame (1), the hot press forming machine being provided with a hydraulic mechanism (10), a gradient arc mechanism (20) and a moving mechanism (30) from top to bottom. The gradient arc mechanism (20) is provided with a plurality of gradient arc grooves, wherein the curvature of the gradient arc grooves increases sequentially along the first direction, the first gradient arc groove is straight, and the last gradient arc groove is semi-circular. The gradient arc mechanism (20) is configured to transport the bamboo strips to be processed from the first gradient arc groove to the last gradient arc groove sequentially along the first direction. The hydraulic mechanism (10) is configured to press down onto the gradient arc mechanism (20) each time the bamboo strip to be processed enters the gradient arc groove; The moving mechanism (30) is configured to transfer the bamboo strip to be processed to the next gradient arc groove and return to the initial position when the hydraulic mechanism (10) retracts; The hot press molding machine is also equipped with a controller, the output end of which is electrically connected to the hydraulic mechanism (10) and the moving mechanism (30).

2. The single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 1, characterized in that, The hydraulic mechanism (10) is equipped with a hydraulic cylinder (101), which is fixedly mounted on the frame (1). The output end of the hydraulic cylinder (101) is provided with a flange (102), which is connected to an upper support plate (103). The upper support plate (103) is slidably provided with first guide rods (104) on both sides. The other end of the first guide rods (104) is fixedly provided with a lower support plate (105), which is provided with a gradient arc mechanism (20).

3. The single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 1, characterized in that, The gradient arc mechanism (20) includes an upper mold (201) and a lower mold (202). A lifting plate (203) is provided in the middle of the lower mold (202). A lifting plate pad (205) is slidably provided on the side of the lifting plate (203) away from the upper mold (201). A cylinder (206) is provided on the lifting plate pad (205). A first guide rail (207) is provided on both sides of the cylinder (206) on the lifting plate pad (205). A first slider is provided on each of the first guide rails (207).

4. A single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 3, characterized in that, The lower mold (202) is connected to a heating plate (204) on the side away from the upper mold (201). The lower mold (202) has an arc pressing station group on the side close to the upper mold (201). The lifting plate (203) has a docking group at the position corresponding to the arc pressing station group.

5. A single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 3, characterized in that, The upper mold (201) has multiple positioning posts (2011) on the side near the lower mold (202).

6. The single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 1, characterized in that, The moving mechanism (30) includes a servo transverse slide (304) and a servo longitudinal slide (3010). The servo transverse slide (304) is provided with a transverse linkage plate (302). The other end of the transverse linkage plate (302) is connected to a transverse support (306). The transverse support (306) is provided with a plurality of second guide rails (307) on the side away from the transverse linkage plate (302). Each second guide rail (307) is provided with a second slider (308). The second guide rail (307) is provided with a base plate (309) on the side away from the transverse support (306).

7. A single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 6, characterized in that, The moving mechanism (30) is provided with a vertical linkage plate (303), and the other end of the vertical linkage plate (303) is connected to a rising bracket (301). The rising bracket (301) is provided with a second guide rod (305) at both ends.

8. A single-layer thin bamboo strip hot-pressing gradient arc forming machine according to claim 6, characterized in that, The transverse support (306) is provided with a holding component on the side away from the servo transverse slide (304). The holding component includes a lifting component (3011) and a transverse push component (3012). The lifting component (3011) is connected to the transverse support (306). The output end of the lifting component (3011) is connected to the transverse push component (3012). The output end of the transverse push component (3012) is provided with a holding component.

9. A method of using a hot-pressing gradient arc forming machine for single-layer thin bamboo strips as described in any one of claims 1-8, characterized in that, Includes the following steps: S1, Soak the bamboo strips to be processed in boiling water; S2, place the soaked bamboo strips on the arc pressing station of the lower mold (202), and heat the upper mold (201) and the lower mold (202) with heat-conducting oil; S3, the controller drives the servo longitudinal slide (3010) to push the lifting bracket (301) to move upward, thereby lifting the lifting plate (203) and lifting the bamboo strip upward. Then, the controller drives the servo transverse slide (304) to push the transverse support (306) to move, thereby lifting the lifting plate (203) to move horizontally. The controller drives the servo longitudinal slide (3010) to drive the lifting bracket (301) to move downward, thereby lifting the lifting plate (203) to descend, so that the bamboo strip is transferred from the previous pressing position to the next pressing position. The controller drives the transverse push assembly (3012) to press the lower mold (202). S4, the controller drives the servo longitudinal slide (3010) to move the lifting bracket (301) downward, causing the lifting plate (203) to descend and detach from the bamboo strip. Then, the controller drives the servo transverse slide (304) to push the transverse support (306) to move, causing the lifting plate (203) to move back. The controller drives the servo longitudinal slide (3010) to move the lifting bracket (301) upward, causing the lifting plate (203) to rise until the lifting plate (203) contacts the bamboo strip. The controller drives the cylinder (206) to push the lifting plate pad (205) to below the lifting plate (203). S5, the controller drives the hydraulic cylinder (101) to push the upper support plate (103) to move downward, causing the upper mold (201) to descend until it fits with the lower mold (202), completing the bamboo strip pressing, and then resetting.

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