Single-layer thin bamboo strip hot-pressing gradient arc forming machine and method thereof

Abstract

The invention provides a single-layer thin bamboo strip hot-pressing gradient arc forming machine and a method thereof. The single-layer thin bamboo strip hot-pressing gradient arc forming machine comprises a rack, and the hot-pressing forming machine is provided with a hydraulic mechanism, a gradient arc mechanism and a moving mechanism; the gradually-changing arc mechanism is provided with a plurality of gradually-changing arc groove bodies, the radians of the gradually-changing arc groove bodies are sequentially increased in the first direction, and the gradually-changing arc mechanism is configured to sequentially convey the bamboo chips to be machined from the first gradually-changing arc groove body to the last semicircular groove body; the hydraulic mechanism is configured to press down the bamboo chips to be processed until the bamboo chips are attached to the gradual-change arc mechanism every time the bamboo chips enter the gradual-change arc groove body; the moving mechanism is configured to transfer the to-be-processed bamboo chip to the next gradually-changed arc groove body when the hydraulic mechanism retreats, and retreats to the initial position; according to the large-inner-diameter bamboo suction pipe production line, through gradual-change arc step-by-step pressing, bamboo chip cracking is effectively reduced, the size is accurately controlled, meanwhile, multi-station synchronous machining is achieved, the production efficiency is greatly improved, and the large-inner-diameter bamboo suction pipe production line is suitable for batch production of large-inner-diameter bamboo suction pipes.

Description

Technical Field

[0001] The invention relates to the technical field of hot-pressing semicircular forming processing of single-layer thin bamboo slices, in particular to a hot-pressing gradient arc forming machine and a method thereof. Background Art

[0002] Bamboo household products, crafted using a semi-circular hot-pressing process that replaces plastic with bamboo, showcase their natural and environmental advantages. Bamboo, a highly renewable resource, grows extremely quickly, ensuring a stable and sustainable supply of raw materials for bamboo household products and effectively reducing reliance on non-renewable resources. The semi-circular hot-pressing process fully utilizes bamboo's unique properties while ensuring the bamboo straws' structural stability and ease of use. Once discarded, bamboo household products naturally decompose into organic matter within a short period of time, eliminating the long-term environmental impact of plastic household products. As an ideal alternative to plastic straws, they can significantly reduce plastic use, mitigate the damage plastic pollution causes to ecosystems at the source, and contribute significantly to addressing the global plastic pollution problem.

[0003] Existing bamboo daily necessities include bamboo straws, such as the one disclosed in Chinese Patent Publication No. CN116442344A, which describes a manufacturing process for grooved bamboo straws. First and second bamboo sheets are pressed into a specially designed hot-pressing mold to form evenly spaced grooves on the low-density surface of the softened bamboo sheets. The two grooved bamboo sheets are then glued together to form a bamboo board with inner holes, which is then evenly spaced apart to form hollow bamboo straws. However, the physical properties of bamboo during hot pressing can 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 in the bamboo. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention aims to provide a single-layer bamboo strip hot-pressing gradient arc forming machine and method, which can effectively solve the above problems.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: The present invention provides a single-layer thin bamboo sheet hot pressing gradient arc forming machine, comprising: A frame, a hot pressing forming machine disposed inside the frame and adapted to the frame, the hot pressing forming machine being provided with a hydraulic mechanism, a gradient arc mechanism, and a moving mechanism in order from top to bottom; The gradient arc mechanism is provided with a plurality of gradient arc troughs, wherein the curvature of the gradient arc troughs increases in sequence along the first direction, the first gradient arc trough is straight, and the last gradient arc trough is semicircular. The gradient arc mechanism is configured to transport the bamboo pieces to be processed from the first gradient arc trough to the last semicircular trough in sequence along the first direction; The hydraulic mechanism is configured to press down until the bamboo piece to be processed fits the gradient arc mechanism each time the bamboo piece enters the gradient arc trough; The moving mechanism is configured to transfer the bamboo piece to be processed to the next gradient arc trough body and return to the initial position when the hydraulic mechanism retracts; The hot pressing forming machine is also provided with a controller, and the output end of the controller is electrically connected to the hydraulic mechanism and the moving mechanism.

[0006] As a further improvement, the hydraulic mechanism is provided with a hydraulic cylinder, which is fixed on the frame, and a flange is provided at the output end of the hydraulic cylinder, which is connected to an upper support plate, and a first guide rod is slidingly provided on both sides of the upper support plate, and a lower support plate is fixedly provided at the other end of the first guide rod, and a gradient arc mechanism is provided on the lower support plate.

[0007] As a further improvement, the gradient arc mechanism includes an upper mold and a lower mold, a lifting plate is provided in the middle of the lower mold, a lifting plate pad is slidingly provided on the side of the lifting plate away from the upper mold, the lifting plate pad is provided with a cylinder, and the lifting plate pad is provided with a first guide rail on both sides of the cylinder, and a first slider is provided on each of the first guide rails.

[0008] As a further improvement, the lower mold is connected to a heating plate on the side away from the upper mold, the lower mold is formed with an arc pressing station group on the side close to the upper mold, and the lifting plate is formed with a docking group at the position corresponding to the arc pressing station group.

[0009] As a further improvement, the upper mold is provided with a plurality of positioning columns on a side close to the lower mold.

[0010] 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 of the second guide rails is provided with a second slider, and the second guide rail is provided with a base plate on the side away from the transverse support.

[0011] As a further improvement, the moving mechanism is provided with a vertical linkage plate, 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.

[0012] As a further improvement, the transverse support is provided with a holding assembly on the side away from the servo transverse slide, and the holding assembly includes a lifting assembly and a transverse pushing assembly. The lifting assembly is connected to the transverse support, and the output end of the lifting assembly is connected to the transverse pushing assembly, and the output end of the transverse pushing assembly is provided with a holding part.

[0013] A method for using a single-layer thin bamboo sheet hot-pressing gradient arc forming machine comprises the following steps: S1, soaking the bamboo slices to be processed in boiling water; S2, placing the soaked bamboo pieces on the arc pressing station of the lower mold, and heating the upper mold and the lower mold with thermal oil; S3, the controller drives the servo longitudinal slide to push the rising bracket to move upward, driving the lifting plate to rise and thus lifting the bamboo piece. Then, the controller drives the servo transverse slide to push the transverse support to move and drive the lifting plate to move horizontally. The controller drives the servo longitudinal slide to drive the rising bracket to move downward and the lifting plate to descend, so that the bamboo piece is transferred from the previous arc pressing station to the next arc pressing station, and drives the transverse push assembly to press and hold the lower mold. S4, the controller drives the servo longitudinal slide to drive the rising bracket to move downward and drive the lifting plate to descend so that the lifting plate is separated from the bamboo piece, and then drives the servo transverse slide to push the transverse support to move and drive the lifting plate to move back, drives the servo longitudinal slide to drive the rising bracket to move upward and drive the lifting plate to rise until the lifting plate contacts the bamboo piece, and drives the cylinder to push the lifting plate pad to the bottom of the lifting plate; S5, the controller drives the hydraulic cylinder to push the upper support plate downward to drive the upper mold to descend until it fits with the lower mold, completing the bamboo strip pressing, and then reset.

[0014] The beneficial effects of the present invention are: Compared with the traditional one-time pressing with a semicircular mold, the present invention realizes the distributed pressing of the bamboo pieces with a gradient arc by arranging multiple arc pressing stations with successively increasing curvatures in the gradient arc mechanism. Each station only slightly adjusts the curvature of the bamboo piece, gradually releasing the internal stress, effectively avoiding the cracking problem caused by a one-time large deformation, significantly reducing the scrap rate that may occur in the production process, and reducing the waste of bamboo materials. Compared with the traditional method of pressing multiple semicircular grooves on a whole piece of bamboo, the present invention adopts a single semicircular groove independent pressing mode. Through the precise coordination 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 the single semicircular groove can be accurately controlled, ensuring the molding consistency of each bamboo piece and significantly improving the product yield. The present invention adopts the gradient arc distribution pressing design of the gradient arc mechanism, and can adapt to the requirements of different inner diameters by adjusting the curvature parameters of the arc pressing station of the lower mold. This solves the problem of small diameter of round bamboo daily necessities caused by the plasticity and ductility of bamboo materials in the one-time forming process. By adjusting the concave mold in a single pressing, bamboo daily necessities with larger inner diameters can be produced. The multiple arc pressing stations of the gradient arc mechanism of the present invention can simultaneously press six arc-shaped bamboo pieces with different curvatures, forming a continuous production process, greatly shortening the processing cycle of semi-circular forming of a single bamboo piece, and significantly improving the production efficiency of round bamboo daily necessities. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 The invention discloses a single-layer thin bamboo slice hot-pressing gradient arc forming machine and a method thereof.

[0017] Figure 2 The present invention is a schematic diagram of the hydraulic mechanism structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and method thereof.

[0018] Figure 3 The invention discloses a schematic cross-sectional view of a hydraulic mechanism structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and method thereof.

[0019] Figure 4 The invention discloses a single-layer thin bamboo sheet hot-pressing gradual arc forming machine and a gradual arc forming method thereof.

[0020] Figure 5 The present invention is a schematic diagram of a gradual arc mechanism structure decomposition of a single-layer thin bamboo sheet hot-pressing gradual arc forming machine and method thereof.

[0021] Figure 6 The present invention is a schematic diagram of a support structure of a single-layer thin bamboo slice hot-pressing gradient arc forming machine and method thereof.

[0022] Figure 7 The present invention is a schematic diagram of the moving mechanism structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and method thereof.

[0023] Figure 8 The present invention is a schematic diagram of the decomposition of the moving mechanism structure of a single-layer thin bamboo sheet hot-pressing gradient arc forming machine and method thereof.

[0024] In the picture: 1- rack, 10-Hydraulic mechanism, 101-Hydraulic cylinder, 102-Flange, 103-Upper bracket plate, 104-First guide rod, 105-Lower bracket plate, 20-gradual arc mechanism, 201-upper mold, 2011-positioning column, 202-lower mold, 2021-first rectangular groove, 2022-first groove, 2023-second groove, 2024-third groove, 2025-fourth groove, 2026-fifth groove, 2027-sixth groove, 2028-seventh 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, 30 - Moving mechanism. 301 - Rising bracket, 302 - Horizontal linkage plate, 303 - Vertical linkage plate, 304 - Servo lateral slide, 305 - Second guide rod, 306 - lateral support, 307 - Second guide rail, 308 - Second slider, 309 - Bottom plate, 3010 - Servo longitudinal slide, 3011 - Lifting assembly, 3012 - Horizontal push assembly. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work 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 drawings is not intended to limit the scope of the invention for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0027] Reference Figure 1 As shown, a single-layer thin bamboo sheet hot pressing gradient arc forming machine includes: The frame 1 is a hot pressing forming machine configured inside the frame 1 and adapted to the frame 1. The hot pressing forming machine is 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 troughs, wherein the curvature of the gradient arc troughs increases in sequence along the first direction, the first gradient arc trough is straight, and the last gradient arc trough is semicircular. The gradient arc mechanism 20 is configured to transport the bamboo pieces to be processed from the first gradient arc trough to the last semicircular trough in sequence along the first direction; the hydraulic mechanism 10 is configured to press down to the gradient arc trough each time the bamboo pieces to be processed enter the gradient arc trough. The arc mechanism 20 is fitted; the moving mechanism 30 is configured to transfer the bamboo piece to be processed to the next gradient arc trough body and retreat to the initial position when the hydraulic mechanism 10 retreats; the hot pressing molding machine is also provided with a controller, and the output end of the controller is electrically connected to the hydraulic mechanism 10 and the moving mechanism 30. By setting a plurality of arc pressing stations with increasing curvature in sequence on the gradient arc mechanism 20, the gradient arc distribution pressing of the bamboo piece is realized. Each station only makes a small curvature adjustment to the bamboo piece, gradually releasing the internal stress, effectively avoiding the cracking problem caused by a one-time large deformation, significantly reducing the scrap rate that may occur in the production process, and reducing the waste of bamboo materials.

[0028] Further, refer to Figure 2-3 As shown, in order to provide stable pressing power, a hydraulic mechanism 10 is provided. The hydraulic mechanism 10 is provided with a hydraulic cylinder 101. The hydraulic cylinder 101 is fixedly provided on the frame 1. The output end of the hydraulic cylinder 101 is provided with a flange 102. A hydraulic rod is provided in the hydraulic cylinder 101. The hydraulic rod is completely buckled in the spherical arc groove of the flange 102 through the semicircular structure provided at the front end. The structure is reliable and stable. The spherical hinge can eliminate the gap caused by surface wear at the hinge, and meet the complex relative movement between the hydraulic cylinder 101 and the upper bracket plate 103. The flange 102 is connected to the upper bracket plate 103. The upper support plate 103 is connected to the upper mold 201, and the first guide rods 104 are slidingly provided on both sides of the upper support plate 103. The first guide rods 104 are used to make the upper support plate 103 move stably. The other end of the first guide rod 104 is fixedly provided with a lower support plate 105, and the lower support plate 105 is provided with a gradual arc mechanism 20. When working, the hydraulic cylinder 101 drives the upper support plate 103 to rise and fall vertically along the first guide rod 104 through the flange 102, thereby driving the upper mold 201 of the gradual arc mechanism 20 to complete the downward pressing and resetting action. The first guide rod 104 ensures the stability of the movement process and avoids deviation.

[0029] Further, refer to Figure 4-6As shown, in order to avoid cracking of the bamboo slices during pressing, a gradual arc mechanism 20 is provided. The gradual 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. The lifting plate 203 is slidably provided with a lifting plate pad 205 on the side away from the upper mold 201. The lifting plate pad 205 is used to provide support to the lifting plate 203 when pressing the bamboo slices, so that the bamboo slices are evenly stressed during pressing. The lifting plate pad 205 is provided with a cylinder 206. The lifting plate pad 205 is provided with a first guide rail 207 on both sides of the cylinder 206, and each first guide rail 207 is provided with a first slider. The lower mold 202 is connected to the heating plate 204 on the side away from the upper mold 201. The lower mold 202 is formed with a plurality of gradient arc grooves on the side close to the upper mold 201. The plurality of gradient arc grooves include a first rectangular groove 2021, a first groove 2022, a second groove 2023, a third groove 2024, a fourth groove 2025, a fifth groove 2026, a sixth groove 2027 and a seventh groove 2028. The lower mold 202 is sequentially provided with a first rectangular groove 2021, a first groove 2022, a second groove 2023, a third groove 2024, a fourth groove 2025, a fifth groove 2026, a sixth groove 2027 and a seventh groove 2028 from the first end to the second end. 2022, the second groove 2023, the third groove 2024, the fourth groove 2025, the fifth groove 2026, the sixth groove 2027 and the seventh groove 2028, and the curvature increases in sequence, and finally the bamboo piece is pressed into a semicircular shape at the seventh groove 2028, and the supporting plate 203 is formed with a docking group at the position corresponding to the multiple gradient arc grooves, and the docking group includes a second rectangular groove 2031, a first docking groove 2032, a second docking groove 2033, a third docking groove 2034, a fourth docking groove 20 35, the fifth docking groove 2036, the sixth docking groove 2037, the lifting plate 203 corresponds to the first end position of the lower mold 202 and is 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 in sequence from the first end to the second end, that is, in the initial state, the second rectangular groove 2021 is aligned with the first rectangular groove 2021, and the first docking groove 2032 is aligned with the first groove 2034. 22, the second docking groove 2033 is aligned with the second groove 2023, the third docking groove 2034 is aligned with the third groove 2024, the fourth docking groove 2035 is aligned with the fourth groove 2025, the fifth docking groove 2036 is aligned with the fifth groove 2026, and the sixth docking groove 2037 is aligned with the sixth groove 2027. In order to ensure that the bamboo pieces are accurately positioned during the transfer process, the upper mold 201 is provided with a plurality of positioning columns 2011 on the side close to the lower mold 202 to further ensure the position accuracy during pressing.

[0030] The lower mold 202 is connected to the heating plate 204 on the side away from the upper mold 201. A channel for the circulation of a heat-conducting medium is formed in the heating plate 204. The heating plate 204 is connected to a heating device. When in use, the heating device inputs the heat-conducting medium into the channel in the heating plate 204, and heats the arc pressing station group of the lower mold 202 through the heat-conducting medium. In order to improve the uniform heating of the bamboo strips during arc pressing, a medium channel is provided in the upper mold 201 and connected to the heating device. When in use, the heat-conducting medium is passed into the medium channel to heat the upper mold 201. In this embodiment, the heat-conducting medium is preferably heat-conducting oil, and the upper mold 201 is provided with a corresponding pressing block at the position of the arc pressing station group on the side close to the lower mold 202.

[0031] Further, refer to Figure 7-8 As shown, in order to achieve the gradual arc distribution pressing of the bamboo pieces, 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 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, and the second guide rail 307 is provided with a bottom plate 309 on the side away from the transverse support 306. The moving mechanism 30 is provided with a vertical linkage plate 303, and the transverse support 306 is provided with a through hole for the vertical linkage plate 303 to pass through. One end of the vertical linkage plate 303 is connected to the servo longitudinal slide 3010, and the other end of the vertical linkage plate 303 is connected to the rising bracket 301. The rising bracket 301 is provided with a second guide rail 307 at both ends. Rod 305, the rising bracket 301 is connected to the lifting plate 203, the lateral support 306 is provided with a holding assembly on the side away from the servo lateral slide 304, the holding assembly includes a lifting assembly 3011 and a lateral push assembly 3012, the lifting assembly 3011 is fixedly connected to the lateral support 306 through the bracket, a connecting plate is provided between the lifting assembly 3011 and the vertical linkage plate 303, the output end of the lifting assembly 3011 is connected to the lateral push assembly 3012, the lateral push assembly 301 2 is provided with a holding piece at the output end. When in use, when the servo longitudinal slide 3010 moves downward, the vertical linkage plate 303 drives the rising bracket 301 to descend, and the connecting plate drives the lifting component 3011 to descend together, driving the lifting component 3011 to lift the horizontal pushing component 3012, and driving the horizontal pushing component 3012 to push the holding piece toward the lower mold 202, so that the holding piece is pressed on the bamboo piece, thereby preventing the bamboo piece from falling when the lifting plate 203 moves.

[0032] Specific implementation of the present invention: Soak the bamboo slices in boiling water at 90℃~100℃ for 30min~1h. Before placing the bamboo slices, drive the heating device to deliver heat-conducting medium to the lower mold 202 and the upper mold 201. After the lower mold 202 and the upper mold 201 are heated to the predetermined temperature, place the bamboo slices on the first rectangular groove 2021, drive the servo longitudinal slide 3010 to move upward, drive the lifting bracket 301 through the vertical linkage plate 303, and then drive the lifting plate 203 to lift. The lifting plate 203 lifts the bamboo slices placed in the second rectangular groove 2031, and drives the servo transverse slide 3010 to move upward. The sliding table 304 moves, and the horizontal linkage plate 302 drives the horizontal support 306 to move, thereby driving the lifting plate 203 to move toward the side of the first groove 2022, driving the servo longitudinal sliding table 3010 to move downward, and the vertical linkage plate 303 drives the rising bracket 301 to drive the lifting plate 203 to descend, and the lifting plate 203 places the bamboo piece placed in the second rectangular groove 2031 in the first groove 2022. At this time, the lifting component 3011 is driven to lift the horizontal pushing component 3012, and the pressing part on the horizontal pushing component 3012 is driven to extend, so that the pressing part is in The lower module 202 presses the bamboo piece on one side, and at this time drives the servo longitudinal slide 3010 to continue to move downward, so that the lifting plate 203 is separated from the bamboo piece, drives the servo transverse slide 304 to move, and drives the lifting plate 203 to move toward the side of the first rectangular groove 2021, drives the servo longitudinal slide 3010 to move upward, so that the first docking groove 2032 of the lifting plate 203 contacts the bamboo piece, and makes the first docking groove 2032 and the first groove 2022 flush, drives the transverse push component 3012 to return the holding part to its initial state, and drives the cylinder 206 to make the lifting plate pad The block 205 extends to the bottom of the lifting plate 203, driving the hydraulic cylinder 101 to move the upper support plate 103 downward, driving the upper mold 201 to approach the lower mold 202 until they are fitted together. The bamboo slices are pressed into an arc shape under the cooperation of the pressing block of the upper mold 201 and the first groove 2022 of the lower mold 202. The pressing time is 10s. When the upper mold 201 and the lifting plate pad 205 are reset, the previous operation is repeated to transfer the bamboo slices from the first groove 2022 to the second groove 2023. Before this, new bamboo slices to be processed can be placed in the first rectangular groove 2021.

[0033] Furthermore, a method for using a single-layer thin bamboo sheet hot-pressing gradient arc forming machine comprises the following steps: S1, soaking the bamboo slices to be processed in boiling water; S2, placing the soaked bamboo pieces on the arc pressing station of the lower mold 202, and heating 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, driving the lifting plate 203 to rise and thus lift the bamboo piece. Then, the controller drives the servo transverse slide 304 to push the transverse support 306 to move, driving the lifting plate 203 to move horizontally. The servo longitudinal slide 3010 drives the lifting bracket 301 to move downward, driving the lifting plate 203 to descend, so that the bamboo piece is transferred from the previous arc pressing station to the next arc pressing station. The controller drives the transverse push assembly 3012 to press the lower mold 202. S4, the controller drives the servo longitudinal slide 3010 to drive the rising bracket 301 to move downward, driving the lifting plate 203 to descend so that the lifting plate 203 is separated from the bamboo piece. Then, the controller drives the servo transverse slide 304 to push the transverse support 306 to move and drive the lifting plate 203 to move back. The servo longitudinal slide 3010 drives the rising bracket 301 to move upward, driving the lifting plate 203 to rise until the lifting plate 203 contacts the bamboo piece. The cylinder 206 is driven to push the lifting plate pad 205 to the bottom of the lifting plate 203. S5, the controller drives the hydraulic cylinder 101 to push the upper support plate 103 to move downward, driving the upper mold 201 to descend until it fits with the lower mold 202, completing the bamboo slice pressing, and then reset.

[0034] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A single-layer thin bamboo sheet hot pressing gradient arc forming machine, characterized in that: include: A frame (1), a hot pressing forming machine disposed inside the frame (1) and adapted to the frame (1), the hot pressing forming machine being provided with a hydraulic mechanism (10), a gradient arc mechanism (20), and a moving mechanism (30) in order from top to bottom; The gradient arc mechanism (20) is provided with a plurality of gradient arc troughs, wherein the curvature of the gradient arc troughs increases in sequence along a first direction, the first gradient arc trough is straight, and the last gradient arc trough is semicircular, and the gradient arc mechanism (20) is configured to transport the bamboo pieces to be processed from the first gradient arc trough to the last semicircular trough in sequence along the first direction; The hydraulic mechanism (10) is configured to press down the bamboo piece to be processed to fit the bamboo piece to the gradient arc mechanism (20) each time the bamboo piece enters the gradient arc trough; The moving mechanism (30) is configured to transfer the bamboo piece to be processed to the next gradient arc trough body and retreat to the initial position when the hydraulic mechanism (10) retreats; The hot pressing molding machine is also provided with a controller, and the output end of the controller is electrically connected to the hydraulic mechanism (10) and the moving mechanism (30).

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

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

4. The single-layer thin bamboo sheet 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 a side away from the upper mold (201), and an arc pressing station group is formed on a side of the lower mold (202) close to the upper mold (201), and the lifting plate (203) is formed with a docking group at a position corresponding to the arc pressing station group.

5. The single-layer thin bamboo sheet hot pressing gradient arc forming machine according to claim 3, characterized in that: The upper mold (201) is provided with a plurality of positioning columns (2011) on a side close to the lower mold (202).

6. The single-layer thin bamboo sheet 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), wherein the servo transverse slide (304) is provided with a transverse linkage plate (302), and the other end of the transverse linkage plate (302) is connected to a transverse support (306), and the transverse support (306) is provided with a plurality of second guide rails (307) on a side away from the transverse linkage plate (302), and each second guide rail (307) is provided with a second slider (308), and the second guide rail (307) is provided with a bottom plate (309) on a side away from the transverse support (306).

7. The single-layer thin bamboo sheet 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), the other end of the vertical linkage plate (303) is connected to a rising bracket (301), and the rising bracket (301) is provided with a second guide rod (305) at both ends.

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

9. A method for using the single-layer thin bamboo sheet hot pressing gradient arc forming machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, soaking the bamboo slices to be processed in boiling water; S2, placing the soaked bamboo pieces on the arc pressing station of the lower mold (202), and heating the upper mold (201) and the lower mold (202) using heat-conducting oil; S3, the controller drives the servo longitudinal slide (3010) to push the rising bracket (301) to move upward, driving the lifting plate (203) to rise and thus lifting the bamboo piece, and then drives the servo transverse slide (304) to push the transverse support (306) to move and drive the lifting plate (203) to move horizontally, drives the servo longitudinal slide (3010) to drive the rising bracket (301) to move downward and drive the lifting plate (203) to descend, so that the bamboo piece is transferred from the previous arc pressing station to the next arc pressing station, and drives the transverse push assembly (3012) to press and hold the lower mold (202); S4, the controller drives the servo longitudinal slide (3010) to drive the rising bracket (301) to move downward, driving the lifting plate (203) to descend so that the lifting plate (203) is separated from the bamboo piece, and then drives the servo transverse slide (304) to push the transverse support (306) to move and drive the lifting plate (203) to move back, drives the servo longitudinal slide (3010) to drive the rising bracket (301) to move upward, driving the lifting plate (203) to rise until the lifting plate (203) contacts the bamboo piece, and drives the cylinder (206) to push the lifting plate pad (205) to the bottom of the lifting plate (203); S5, the controller drives the hydraulic cylinder (101) to push the upper support plate (103) to move downward, driving the upper mold (201) to descend until it fits with the lower mold (202), completing the bamboo slice pressing, and then reset.

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