Bamboo bending device

Abstract

The application discloses a bamboo bending device which is mainly composed of a speed-regulating motor, a belt transmission, a bending arm, a gas-liquid mixing cylinder, a force-adding pressure head, a bending die, a fixed die, a bending roller, a temperature control device and a heating device. The bending arm is fixed on a main shaft through a key groove, and the overall shape of the bending arm is similar to an L type. The bending die is fixed on the bending arm through a shaft, and the fixed die is fixed on a box body through a stand column. The gas-liquid mixing cylinder is fixed on a single-ear or double-ear cylinder base through a screw, and a stand plate is fixed on the cylinder base through a screw, so that the gas-liquid mixing cylinder can rotate by a certain angle on the bending arm. The force-adding pressure head is fixed on a cylinder head through a screw, and a linear slide rail is fixed on the force-adding pressure head through a screw, so that the movement track of the force-adding pressure head is positioned. The bending roller is fixed on the force-adding pressure head through a fixed shaft, so that the bending die, the fixed die and the bending roller can be just put into a bamboo and fixed in the initial position.

Description

Technical Field

[0001] This application relates to the fields of mechanical devices and electrical technology, and more specifically, to a bamboo bending device. Background Technology

[0002] With the widespread use of bamboo in furniture, construction and art, traditional bamboo processing methods mainly rely on manual operation, which is not only inefficient, but also makes it difficult to guarantee processing precision and consistency, resulting in a large waste of bamboo resources.

[0003] Existing bending equipment cannot be used for bamboo, and it suffers from problems such as complex operation, high mechanical wear, and high energy consumption. In particular, it is prone to breakage or deformation during the bending process, affecting product quality.

[0004] In the traditional process of bending bamboo, the heat treatment is often uneven or the temperature is not precisely controlled, which may cause the bamboo to partially carbonize or fail to reach the desired softness, thus affecting the final bending effect.

[0005] Although some equipment incorporates automation technology, most still require manual monitoring and adjustment, preventing fully automated operation and increasing labor intensity and production costs. Existing technologies may also generate harmful gases or noise during processing, posing threats to operator health and the environment.

[0006] In light of the above background and existing problems, this invention provides a bamboo bending device, aiming to solve the problems of low efficiency, unstable product quality, and complex operation in the bamboo bending process through innovative design and technological application, thereby achieving efficient, precise, and environmentally friendly bamboo processing. This is achieved through the following specific technical means.

[0007] The bamboo bending device provided in this application adopts the following technical solution: A bamboo bending device includes a bending arm, a speed-regulating motor, a gas-liquid mixing cylinder, a bending mold, a fixing mold, a bending roller, a spray gun, a temperature control device, profiles, a linear guide rail, a single-ear cylinder base, a double-ear cylinder base, a coupling, a shaft, a base, rollers, a roller fixing plate, a vertical plate, a gas inlet, a liquid outlet, gears, a gear transmission belt, a pressure sensor, a housing, a main shaft, a microcontroller, a relay, an angle sensor, and a pressure head.

[0008] The bending arm is fixed to the main shaft via a keyway and is located above the housing. The speed-regulating motor is fixed inside the housing with screws and connected to a gear transmission belt to drive the gears to rotate. The gas-liquid mixing cylinder is connected to a double-ear cylinder base and a single-ear cylinder base via screws, both of which are fixed to the upright plate. The bending mold is fixed directly above the main shaft via a shaft, with the main shaft having a hollow center that mates with the shaft. The fixing mold is fixed by a column welded to the housing and mates with the bending mold to fix the bamboo. The bending roller is fixed to the housing via a shaft on a coupling. The roller fixing plate is kept at the same horizontal line as the fixed mold. The spray gun is fixed to the bending arm by a profile and screws. The spray gun is positioned directly opposite the fixing bamboo of the bending mold. The temperature control device is connected to the heater and is used to control the heating current of the heating coil, thereby controlling the temperature. The linear slide rail is connected to the roller fixing plate by screws and forms a sliding pair with the shaft. The device also includes a microcontroller, a relay, an angle sensor, and a pressure head, wherein the pressure head is a bending roller, the roller fixing plate, the linear slide rail, the shaft, and a coupling connected to the piston of the gas-liquid mixing cylinder.

[0009] Furthermore, the device includes a pressure sensor located at the outlet of the gas-liquid mixing cylinder to detect the output pressure of the gas-liquid mixing cylinder in real time. The device also includes a gas inlet and a liquid outlet, respectively located at the gas inlet and liquid outlet of the gas-liquid mixing cylinder. The device controls the rotation angle of the lever arm through a microcontroller to achieve step-by-step bending, and uses an angle sensor to provide feedback on position information to limit the start and stop time of the lever arm and prevent the bamboo from breaking. The device achieves constant-force bending by controlling the pressure of the force-limiting gas-liquid mixing cylinder, and uses the compressibility of gas to mitigate the impact on the bamboo when the lever arm steps forward.

[0010] Furthermore, the device strictly controls the heating temperature through a temperature controller, effectively preventing carbonization and combustion of the bamboo and reducing energy consumption. The device is versatile and can perform bending operations on various types of bamboo. It is highly adaptable; based on the structural characteristics of bamboo, the roller can roll more smoothly over the bamboo nodes, avoiding locking between the bamboo nodes and the clamps, which could lead to the bamboo breaking or cracking during bending. The device is highly observable, mimicking manual operation, and can simulate the manual bending process of bamboo to the greatest extent possible, ensuring the integrity of the bamboo.

[0011] Furthermore, the bending arm is fixed to the main shaft via a keyway and is located above the housing; the speed-regulating motor rotates the main shaft via a conveyor belt, and the main shaft drives the bending arm to rotate via a key.

[0012] Furthermore, the gas-liquid mixing cylinder is connected to the double-ear cylinder base by screws, forming a fit with the single-ear cylinder base, and together they are fixed on the upright plate, allowing for left and right rotation.

[0013] Furthermore, the pressure head, consisting of a bending roller, a roller fixing plate, a linear guide rail, a shaft, and a coupling, is connected to the piston of the gas-liquid mixing cylinder. The gas-liquid mixing cylinder allows the bending roller to move horizontally.

[0014] In summary, this application includes the following beneficial technical effects: 1. This invention is highly functional. It strictly controls the heating temperature through a temperature controller, effectively preventing the carbonization and combustion of bamboo and reducing energy consumption.

[0015] 2. This invention has strong functionality and adjustability. It controls the angle of the lever arm through a microcontroller to achieve step bending. The angle of each step bending is controllable, and the overall bending angle is adjustable.

[0016] 3. This invention has strong control performance. The force-limiting gas-liquid mixing cylinder and the lever arm are determined by sensors at any time. The start and stop time of the lever arm is controlled by position information feedback to limit the bending torque and prevent the bamboo from breaking.

[0017] 4. This invention has strong balance. By controlling the pressure of the force-limiting gas-liquid mixing cylinder, constant force bending can be achieved. At the same time, the compressibility of gas is used to mitigate the impact on the bamboo when the lever arm steps forward.

[0018] 5. This invention has strong balance, and the pneumatic and hydraulic control force can fit the bending characteristics of the bamboo very well, allowing for more precise control of the force based on the characteristics of the bamboo itself when bending, thus preventing the bamboo from breaking.

[0019] 6. This invention is highly observable and mimics manual operation, maximally simulating the process of manually bending bamboo, thus ensuring the integrity of the bamboo.

[0020] 7. This invention is highly functional. The temperature control device strictly controls the heating temperature of the bamboo according to the softening temperature curve of the bamboo, effectively preventing the bamboo from breaking.

[0021] 8. This invention has strong versatility and can realize various bending operations on bamboo.

[0022] 9. This invention is highly adaptable. Based on the structural characteristics of bamboo, the roller can roll more smoothly over the bamboo nodes, avoiding the problem of the bamboo nodes locking with the clamps, which would cause the bamboo to break or crack during bending. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the gas-liquid mixing cylinder of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention.

[0024] Explanation of the labels in the diagram: 1. Bending arm; 3. Gas-liquid mixing cylinder; 4. Bending mold; 5. Fixed mold; 6. Bending roller; 7. Spray gun; 8. Profile; 9. Linear slide rail; 10. Single-ear cylinder base; 11. Double-ear cylinder base; 12. Coupling; 13. Shaft; 14. Roller fixing plate; 17. Vertical plate; 18. Gas inlet; 19. Liquid outlet; 20. Housing; 24. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0028] This application discloses a bamboo bending device; please refer to [link to relevant documentation]. Figures 1-3A specific technical implementation plan for a bamboo bending device includes: a bending arm 1, a speed-regulating motor, a gas-liquid mixing cylinder 3, a bending mold 4, a fixing mold 5, a bending roller 6, a spray gun 7, a temperature control device, a profile 9, a linear slide rail 10, a single-ear cylinder base 11, a double-ear cylinder base 12, a coupling 13, a shaft 14, a base, rollers, a roller fixing plate 17, a vertical plate 18, a gas inlet 19, a liquid outlet 20, gears, a gear transmission belt, a pressure sensor, a housing 24, a main shaft, a microcontroller, a relay, an angle sensor, and a pressure head. The features are as follows: the bending arm 1 is fixed to the main shaft via a keyway and is located above the housing 24; the speed-regulating motor is fixed inside the housing 24 by screws and connected to a gear conveyor belt to drive the gear to rotate; the gas-liquid mixing cylinder 3 is connected to the double-ear cylinder base 12 and the single-ear cylinder base 11 by screws to form a fit, and together they are fixed to the upright plate 18; the bending mold 4 is fixed directly above the main shaft by a shaft 14, and the center of the main shaft is hollow to form a fit with the shaft 14; the fixing mold 5 is fixed by a column welded to the housing 24, and fits with the bending mold 4 to fix the gap of the bamboo stick; the bending roller 6 is fixed to the roller fixing plate by the shaft 14 on the coupling 13, and is kept on the same horizontal line as the fixing mold 5; the spray gun 7 is fixed to the bending arm 1 by a profile 9 and screws, and the position of the spray gun 7 is directly opposite the bending mold 4 to fix the bamboo stick. The temperature control device is connected to the heater and controls the temperature by controlling the heating current of the heating coil. Profile 9 is mainly used to connect various devices. Linear slide rail 10 is connected by screws to the roller fixing plate and forms a sliding pair with shaft 14. Single-ear cylinder base 11 is connected to the upright plate 18 by screws. Double-ear cylinder base 12 is connected by screws to the gas-liquid mixing cylinder 3 and forms a rotating pair with single-ear cylinder base 11. Coupling 13 is connected to the gas-liquid mixing cylinder connecting plate by screws. Shaft 14 is fixed by coupling 13 and the other end is connected to linear slide rail 10, which can form a sliding pair. Spray gun 7 base is connected to bending arm 1. Roller is connected to roller fixing plate through shaft 14. Roller fixing plate is connected to push plate by triangle iron and screws. Upright plate 18 is welded to bending arm 1. Gas inlet 19 is on the gas inlet of gas-liquid mixing cylinder 3. Liquid outlet 20 is on the liquid outlet of gas-liquid mixing cylinder 3. The gear is located directly below the main shaft, inside the housing 24, and is fixed to the main shaft via a key connection. The gear conveyor belt is located inside the housing 24, connecting the gear to the speed-regulating motor. The pressure sensor is located at the outlet of the gas-liquid mixing cylinder 3, with its main body on the housing 24, partly outside and partly inside. The microcontroller is located inside the housing 24; the relay is also located inside the housing 24. The angle sensor is located on the bending arm 1; the pressure head, consisting of a bending roller 6, a roller fixing plate 17, a linear slide rail 10, a shaft 14, and a coupling 13, is connected to the piston of the gas-liquid mixing cylinder 3.

[0029] The bending arm is fixed to the main shaft via a keyway and is located above the housing. The speed-regulating motor drives the main shaft to rotate via a conveyor belt, and the main shaft drives the bending arm to rotate via a key.

[0030] The gas-liquid mixing cylinder is connected to the double-ear cylinder base by screws, which fits with the single-ear cylinder base and is fixed together on the upright plate, allowing it to rotate left and right.

[0031] The pressure head, consisting of a bending roller, a roller fixing plate, a linear guide rail, a shaft, and a coupling, is connected to the piston of the gas-liquid mixing cylinder. The gas-liquid mixing cylinder allows the bending roller to move horizontally.

[0032] The implementation principle of this embodiment is as follows: The microcontroller outputs a signal to control the relay to drive the speed-regulating motor to rotate, which in turn drives the bending arm to rotate 1. At this time, since the set pressure on the piston of the gas-liquid mixing cylinder 3 is lower than the pressure required for bending the bamboo in a cooled state, the piston of the gas-liquid mixing cylinder 3 is driven away from the bottom of the gas-liquid mixing cylinder by the bamboo, and the distance between the pressure head and the bending arm 1 increases, thereby avoiding excessive force on the bamboo, which could cause the bamboo to break. The speed-regulating motor starts, and the bending arm 1 begins to rotate. When the angle sensor on the bending arm 1 reaches the step angle (10°) set by the program, the microcontroller controls the speed-regulating motor to stop. At this time, the temperature control device heats the bending position of the bamboo. As the heating process progresses, the bamboo gradually softens, and the deformation resistance of the bamboo gradually decreases. When the deformation resistance of the bamboo is lower than the set pressure of the piston, the high-pressure air pushes the piston closer to the bottom of the gas-liquid mixing cylinder 3, the distance between the pressure head and the bending arm 1 decreases, and the pressure head drives the bamboo to move, thus achieving the bending of the bamboo. Meanwhile, the pressure sensor at the outlet of the gas-liquid mixing cylinder 3 records data in real time. When the measured pressure exceeds the set threshold, the microcontroller sends feedback and controls the pressure relief valve to start. When the piston shortens to the set position, the limit switch on the gas-liquid mixing cylinder 3 is pressed down, providing a rising edge signal to the microcontroller. Under the control of the rising edge signal, the microcontroller repeats the above process. When the total rotation angle of the bending arm 1 reaches the set angle, and the limit switch of the gas-liquid mixing cylinder 3 is pressed down, it can be considered that the bamboo has bent to the required angle, and the bending equipment resets to wait for the next operation.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A bamboo bending device, comprising a bending arm (1), a speed-regulating motor, a gas-liquid mixing cylinder (3), a bending mold (4), a fixing mold (5), a spray gun (7), a temperature control device, a profile (9), a single-ear cylinder base (11), a double-ear cylinder base (12), a base, rollers, a vertical plate (18), a gas inlet (19), a liquid outlet (20), gears, a gear conveyor belt, a pressure sensor, a housing (24), a main shaft, a microcontroller, a relay, an angle sensor, a pressure head, wherein the pressure head is a bending roller (6), a roller fixing plate (17), a linear slide rail (10), a shaft (14), and a coupling (13), characterized in that: The curved arm (1) is fixed to the main shaft by a keyway and is located above the housing (24). The main shaft drives the curved arm (1) to rotate via a key. The speed-regulating motor is fixed inside the housing (24) by screws and connected to the gear conveyor belt to drive the gear to rotate. The gear is located directly below the main shaft and is connected to the double-ear cylinder base (12) and the single-ear cylinder base (11) by screws. Both are fixed on the upright plate (18). The bending die (4) is fixed directly above the main shaft by a shaft (14), and the center of the main shaft is hollow and fits with the shaft (14); The fixing mold (5) is fixed by a column welded to the box body (24) and cooperates with the bending mold (4) to fix the bamboo; The bending roller (6) is fixed to the roller fixing plate by the shaft (14) on the coupling (13), and is kept on the same horizontal line as the fixing mold (5); The spray gun (7) is fixed to the curved arm (1) by the profile (9) and screws, and the spray gun (7) is positioned directly opposite the bamboo fixing part of the curved mold (4); The temperature control device is connected to the heater to control the heating current of the heating coil, thereby controlling the temperature. The linear slide rail (10) is connected to the roller fixing plate by screws and forms a sliding pair with the shaft (14). The pressure head is connected to the piston of the gas-liquid mixing cylinder (3). The pressure sensor is located at the outlet of the gas-liquid mixing cylinder (3) and is used to detect the outlet pressure of the gas-liquid mixing cylinder (3) in real time. The device also includes a gas inlet (19) and a liquid outlet (20). The device controls the rotation angle of the bending arm (1) through a microcontroller to achieve step-by-step bending and feeds back position information through an angle sensor to limit the start and stop time of the bending arm (1) and prevent the bamboo from breaking. The device achieves constant-force bending by controlling the pressure of the force-limiting gas-liquid mixing cylinder and uses the compressibility of gas to mitigate the impact on the bamboo when the bending arm (1) steps.

2. The bamboo bending device according to claim 1, characterized in that: The gas-liquid mixing cylinder (3) is connected to the double-ear cylinder base (12) by screws, and forms a cooperation with the single-ear cylinder base (11), and is fixed together on the upright plate (18), which can realize left and right rotation.

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