A flexible-grip straw delivery device

Abstract

The application discloses a straw conveying device based on flexible clamping and relates to the technical field of conveying. The conveying device comprises a conveying mechanism, a temporary storage box and a transfer mechanism. A support is arranged on the conveying mechanism, and a deviation rectifying assembly is arranged on the support. Compared with the current straw conveying device, the straw conveying device is provided with a three-dimensional moving assembly and a clamping assembly. The cooperation of the three-dimensional moving assembly and the clamping assembly realizes the automation of straw transfer. When it is detected that the straw is too tightly stacked, the clamping assembly can be controlled to shake through the second moving module, so that the straw is loosened. The active claw is prevented from exerting excessive force on the straw to cause deformation and damage. The position of the straw is rectified through the deviation rectifying assembly, so that the straw is perpendicular to the movement direction of the conveying mechanism. After rectification, the straw can be conveyed into the temporary storage box in a posture perpendicular to the movement direction of the conveying mechanism, so that the straw is arranged in the temporary storage box in a regular manner.

Description

Technical Field

[0001] This invention relates to the field of conveying technology, specifically a straw conveying device based on flexible clamping. Background Technology

[0002] Straws are a common disposable item in daily life and are widely used in many fields such as beverage consumption and food processing. As a core piece of equipment in the production process, the performance of straw delivery devices directly affects the operation of the entire production system.

[0003] Currently, most traditional straw conveying devices rely on manual operation or simple mechanical structures to transfer straws that have fallen into the temporary storage box to the next process. Manual transfer is not only inefficient but also difficult to adapt to large-scale continuous production. Simple mechanical structures cannot precisely control the force during straw gripping and transfer. When straws are stacked too tightly in the temporary storage box, the mechanical clamping components often apply force blindly, causing straw deformation and damage, reducing product yield. Furthermore, existing conveying devices generally lack effective correction methods during straw conveying. The posture and position of straws are difficult to unify as they move on the conveying device. This results in disordered stacking in the temporary storage box, affecting the difficulty of subsequent transfer operations, and also causes the ends of straws to easily impact the temporary storage box when falling, causing physical damage. Finally, traditional straw conveying devices mostly use a single drive motor. If the drive motor fails, the entire conveying system will be paralyzed, leading to production interruption. Summary of the Invention

[0004] The purpose of this invention is to provide a straw delivery device based on flexible clamping to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a straw conveying device based on flexible clamping, the conveying device including a conveying mechanism, a temporary storage box, and a transfer mechanism, wherein a support is provided on the conveying mechanism, and a correction component is provided on the support; the temporary storage box is located at the discharge end of the conveying mechanism, and the transfer mechanism is located at the end of the temporary storage box away from the conveying mechanism; the transfer mechanism includes a control box, a three-dimensional moving component, and a clamping component; the three-dimensional moving component is located above the control box, and the clamping component is located above the temporary storage box; the clamping component is connected to the three-dimensional moving component through a connecting frame; during operation, the material guiding device of the previous process continuously feeds the cut straw... Good straws are conveyed to a conveying mechanism, which transports them to a temporary storage box. Compared to current straw conveying devices, this invention is equipped with a clamping component and a correction component. The correction component corrects the position of the straws so that they are perpendicular to the direction of movement of the conveying mechanism. This facilitates the straws to form a regular arrangement in the temporary storage box, avoiding the disordered stacking of traditional straws and making it easier for the clamping component to pick up the straws. It also prevents the straws from hitting the temporary storage box with their ends when they fall from the conveying mechanism, thus preventing damage to the straws. When a large number of straws fall into the temporary storage box, the straws in the temporary storage box are transferred to the subsequent process through the cooperation of the three-dimensional moving component and the clamping component.

[0006] Furthermore, the conveying mechanism includes a first drive motor, a second drive motor, a conveyor belt, a fixed frame, a driven shaft, and a drive shaft. The driven shaft and the drive shaft are arranged opposite each other at both ends of the fixed frame. The conveyor belt is arranged outside the driven shaft and the drive shaft. The drive shaft is connected to the first drive motor and the second drive motor through a linkage assembly. A speed measuring element is provided at the working end of the first drive motor. During normal operation, the first drive motor is in the on state, and the second drive motor is in the off state. The first drive motor is connected to the drive shaft through the linkage assembly, and there is no power connection between the second drive motor and the drive shaft. The speed measuring element monitors the speed in real time. The speed of the first drive motor is tested to ensure it is normal. If the speed of the first drive motor is abnormal, the operator can control the connection status between the first drive motor, the second drive motor and the drive shaft through the linkage component. When the second drive motor is connected to the drive shaft through the linkage component and there is no power connection between the first drive motor and the drive shaft, the operator can turn on the second drive motor and turn off the first drive motor at the same time. At this time, the second drive motor will drive the conveying mechanism to work. Compared with the current straw conveying device, this invention significantly improves the reliability and fault tolerance of straw conveying, effectively avoids production stoppages caused by equipment failure, and ensures the continuity of straw production.

[0007] Furthermore, the three-dimensional moving component includes a first moving module, a second moving module, and a third moving module. The third moving module is mounted on the control box. The first moving module is connected to the third moving module via the second moving module. The connecting frame is located at the working end of the first moving module. The connecting frame is connected to the clamping component via a rotating shaft and a rotary motor. This invention controls the clamping component to move vertically, horizontally, and vertically above the temporary storage box via the first, second, and third moving modules, and controls the clamping component to rotate around the rotating shaft via the rotating shaft and rotary motor. In this invention, when gripping straws in a temporary storage box, the opening end of the clamping component faces downwards. The operator moves the clamping component to the target position using a three-dimensional moving component. After the clamping component grips the straw, it is rotated by a rotating shaft and a rotary motor until the opening end of the clamping component faces upwards. Then, the three-dimensional moving component moves the clamping component to the next process. Compared with current straw conveying devices, this invention eliminates the need for manual transfer of straws. Furthermore, since the opening of the clamping component always faces upwards during the transfer process, the risk of straws falling is greatly reduced.

[0008] Furthermore, the clamping assembly includes a connecting seat, fixed claws, and a connecting plate. Two sets of fixed claws are arranged opposite each other on the lower sides of the connecting seat. The connecting plate is positioned between the two sets of fixed claws. A double-headed cylinder is installed inside the connecting seat, with each end connected to one of the two sets of fixed claws. The double-headed cylinder controls the movement of the two sets of fixed claws. Each set of fixed claws contains a set of movable claws and hydraulic oil. A reset assembly is installed on the outer side of each set of fixed claws. The upper end of the fixed claw is connected to an external hydraulic pump via a hose, and the lower end of the fixed claw is connected to the reset assembly. The extension and retraction of the two sets of movable claws are controlled by the external hydraulic pump and the reset assembly. When gripping a straw in a temporary storage box, this invention operates... Personnel can use the three-dimensional moving component to move the clamping component above the suction tube inside the temporary storage box. Then, the external hydraulic pump is turned on to deliver hydraulic oil into the two sets of fixed claws. Under the action of hydraulic pressure, the two sets of movable claws will extend into the suction tube inside the temporary storage box (at this time, there are multiple suction tubes in the space formed by the two sets of movable claws and the two sets of fixed claws). Next, the double-headed cylinder is turned on to bring the two sets of fixed claws closer to each other (the two sets of movable claws move closer simultaneously). During this process, multiple suction tubes will be squeezed and fixed in the space formed by the two sets of movable claws and the two sets of fixed claws. Finally, the clamping component is rotated by the rotating shaft and the rotary motor until the open end of the clamping component faces upward. The three-dimensional moving component then moves the clamping component to the next process.

[0009] Furthermore, a sensing groove is provided at the end of the movable claw away from the fixed claw. A sensing block and a sensing spring are disposed in the sensing groove. One end of the sensing spring is fixedly connected to the sensing block, and the other end of the sensing spring is fixedly connected to the fixed claw. A first piezoelectric plate is embedded in the end of the sensing block near the sensing spring. When the two sets of movable claws extend into the straws in the temporary storage box, the sensing block will contact the straws in the temporary storage box first. Under normal circumstances, the sensing block will pass directly through the area between two adjacent straws, and the resistance experienced by the sensing block is insufficient to deform the sensing spring. When the straws in the temporary storage box are too tightly packed due to excessive stacking or other reasons, the sensing block will encounter greater resistance when passing through the area between two adjacent straws. At this time, the sensing spring will undergo elastic deformation and transmit the force to the first piezoelectric plate, based on the piezoelectric effect. Workers can determine the stacking status of straws in the temporary storage box by detecting the electrical signal generated by the first piezoelectric plate. In such cases, workers can control the clamping component to sway within the temporary storage box along the direction of the conveying mechanism via the second moving module. The swaying of the clamping component causes the straws in the temporary storage box to move in a regular manner, gradually loosening the originally tightly packed straws. This allows the two sets of moving claws to continue extending into the straws in the temporary storage box to grab and transport them away. Compared to current manual straw gripping or other straw gripping mechanisms, this invention can monitor the stacking status of straws. When the straws are stacked too tightly, it can automatically loosen the tightly packed straws. Through the above technical solution, it effectively prevents the moving claws from applying excessive force to the straws, which could cause deformation and damage to the straws.

[0010] Furthermore, the reset assembly includes a reset frame, which contains a piston and a reset spring. An external hydraulic pump supplies hydraulic oil to the fixed claw, so that when the movable claw extends, the hydraulic oil at the lower end of the fixed claw enters the reset frame, causing the reset spring to deform and compress. When the operator needs the movable claw to reset, the hydraulic oil supplied to the fixed claw is simply pumped out by the external hydraulic pump. Under the action of the reset spring, the hydraulic oil squeezed into the reset frame will flow back into the fixed claw, and the movable claw will automatically reset under the action of hydraulic pressure.

[0011] Furthermore, the correction assembly includes a lifting cylinder, a mounting frame, an offset motor, and grippers. The lifting cylinder is positioned above the support, and the mounting frame is positioned inside the support. The mounting frame and the lifting cylinder are connected via the offset motor. Two sets of grippers are positioned below the mounting frame, and a telescopic cylinder is positioned inside the mounting frame. The telescopic cylinder is connected to the two sets of grippers.

[0012] Furthermore, a fixed seat is provided at the top of the support, and a visual inspection device is provided at the middle position of the fixed seat. The visual inspection device is perpendicular to the movement direction of the conveyor belt.

[0013] When the conveying mechanism delivers the straw to the area below the alignment component, the mounting frame descends via a lifting cylinder, and the two sets of grippers move closer together via a telescopic cylinder until they clamp the straw. A vision inspection device checks whether the straw's position is perpendicular to the conveying mechanism's direction of movement. If the straw's position is not perpendicular, the offset motor rotates the mounting frame, the two sets of grippers, and the straw to align the straw with the conveying mechanism's direction of movement. Finally, the telescopic cylinder moves the two sets of grippers apart to release the straw.

[0014] Furthermore, each of the two sets of grippers has an air bladder at one end that is close to the other. Each air bladder contains a second piezoelectric element, and both sets of second piezoelectric elements are electrically connected to the telescopic cylinder. When the grippers hold the straw, the two sets of air bladders will contact the straw first, thus effectively avoiding the indentation or deformation of the straw surface when gripping it with traditional hard grippers. In addition, when the two sets of air bladders contact the straw, if the two sets of grippers continue to move closer to each other, the air pressure inside the two sets of air bladders will change, which will cause the second piezoelectric element to generate an electrical signal. The telescopic cylinder will automatically stop when it detects the electrical signal generated by the second piezoelectric element, thereby ensuring that the gripping force is precisely matched with the straw diameter and preventing the straw from being deformed or not gripped tightly due to excessive or insufficient gripping force.

[0015] Furthermore, the linkage assembly includes two first transmission discs, two second transmission discs, and two pulleys. The two first transmission discs are arranged opposite each other at both ends of the fixed frame, and the two second transmission discs are arranged opposite each other at both ends of the drive shaft. The two pulleys are respectively arranged between adjacent first and second transmission discs. Each pulley contains an electromagnet. One pulley is connected to a first drive motor via a first belt, and the other pulley is connected to a second drive motor via a second belt. In this invention, the two second transmission discs are fixedly connected to the drive shaft, the two first transmission discs are fixedly connected to the fixed frame, and the two pulleys are slidably mounted at both ends of the drive shaft. When the first drive motor needs to be connected to the drive shaft, the electromagnet inside the pulley connected to the first drive motor generates a magnetic field that attracts the second transmission discs (the electromagnet inside the pulley connected to the second drive motor generates...). A magnetic field attracts the first transmission disc. At this time, the pulley and the second transmission disc connected to the first drive motor are attracted together. Under the action of the pulley and the second transmission disc, the first drive motor drives the drive shaft to rotate. When the second drive motor needs to be connected to the drive shaft, the electromagnet inside the pulley connected to the second drive motor generates a magnetic field that attracts the second transmission disc (the electromagnet inside the pulley connected to the first drive motor generates a magnetic field that attracts the first transmission disc). At this time, the pulley and the second transmission disc connected to the second drive motor are attracted together. Under the action of the pulley and the second transmission disc, the second drive motor drives the drive shaft to rotate. Through the above technical solution, the present invention can adjust the connection state of the first drive motor and the second drive motor with the drive shaft as needed, thereby effectively avoiding production stoppages caused by equipment failure and ensuring the continuity of straw production.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Compared with the current straw conveying device, the present invention is equipped with a three-dimensional moving component and a clamping component. The cooperation of the three-dimensional moving component and the clamping component realizes the automation of straw transfer and ensures the stability of the transfer process. The movable claw in the clamping component is equipped with a sensing groove, a sensing block and a sensing spring. In conjunction with the first piezoelectric sheet, the clamping component can monitor the stacking state of the straws. When it is detected that the straws are stacked too tightly, the clamping component can be controlled to shake through the second moving module to loosen the straws and prevent the movable claw from applying too much force to the straws, which would cause deformation and damage.

[0018] 2. The present invention also includes a correction component, which corrects the position of the straw so that the straw is perpendicular to the direction of movement of the conveying mechanism. After correction, the straw can be transported into the temporary storage box in an attitude perpendicular to the direction of movement of the conveying mechanism, thus forming a regular arrangement in the temporary storage box. On the one hand, this facilitates the subsequent gripping component to quickly and accurately grasp the straw, improving the gripping efficiency. On the other hand, it prevents the straw on the conveying mechanism from being damaged when its end hits the temporary storage box during its fall, effectively ensuring the quality and integrity of the straw. In addition, the present invention has an airbag at one end of the two sets of grippers in the correction component, which not only avoids the surface indentation or deformation caused by traditional hard grippers when gripping the straw, but also ensures that the gripping force is precisely matched with the straw diameter through the electrical connection between the second piezoelectric plate in the airbag and the telescopic cylinder, preventing straw damage caused by improper gripping force.

[0019] 3. The present invention also includes a linkage component. During normal operation, the first drive motor is in the on state and is connected to the drive shaft via the linkage component. The second drive motor is in the off state and has no power connection with the drive shaft. At the same time, the speed of the first drive motor is monitored in real time using a speed measuring element. When the speed of the first drive motor becomes abnormal, the operator can flexibly adjust the connection status of the two drive motors and the drive shaft through the linkage component, thereby effectively avoiding production stoppages caused by equipment failure and ensuring the continuity of straw production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the correction component structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the conveying mechanism structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the structure of section A;

[0024] Figure 5 This is a schematic diagram of the transfer mechanism structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the clamping component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the movable claw of the present invention;

[0027] Figure 8 This is a schematic diagram of the internal structure of the reset frame of the present invention.

[0028] In the diagram: 1. Conveying mechanism; 11. First drive motor; 12. Second drive motor; 13. Conveyor belt; 14. Fixed frame; 141. First transmission disc; 15. Driven shaft; 16. Drive shaft; 161. Second transmission disc; 17. Pulley; 171. Electromagnet; 2. Bracket; 21. Lifting cylinder; 22. Mounting frame; 23. Fixed seat; 24. Offset motor; 25. Gripper; 3. Temporary storage box; 4. Transfer mechanism; 41. Control box; 42. Connecting frame; 43. Clamping assembly; 431. Connecting seat; 432. Reset frame; 4321. Piston; 433. Movable gripper; 4331. Sensing slot; 4332. Sensing block; 434. Fixed gripper; 435. Connecting plate; 44. First moving module; 45. Second moving module; 46. Third moving module. Detailed Implementation

[0029] 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.

[0030] Example: Figures 1-8 As shown, this invention provides a technical solution: a straw conveying device based on flexible clamping. The conveying device includes a conveying mechanism 1, a temporary storage box 3, and a transfer mechanism 4. A support 2 is mounted on the conveying mechanism 1, and a correction component is mounted on the support 2. The temporary storage box 3 is located at the discharge end of the conveying mechanism 1. The transfer mechanism 4 is located at the end of the temporary storage box 3 away from the conveying mechanism 1. The transfer mechanism 4 includes a control box 41, a three-dimensional moving component, and a clamping component 43. The three-dimensional moving component is located above the control box 41, and the clamping component 43 is located above the temporary storage box 3. The clamping component 43 is connected to the three-dimensional moving component via a connecting frame 42. During operation, the material guiding device from the previous process continuously conveys the cut straws to the conveying mechanism 1, which then transports the straws to the temporary storage box 3. Compared to current straw conveying devices, this invention includes a clamping component 43 and a correction component. The correction component corrects the position of the straws, ensuring that the straws are perpendicular to the direction of movement of the conveying mechanism 1 (e.g., ...). Figure 1 As shown in the figure, this facilitates the regular arrangement of straws in the temporary storage box 3, avoiding the traditional disorderly stacking and making it easier for the subsequent clamping component 43 to grab the straws. On the other hand, it prevents the straws on the conveying mechanism 1 from hitting the temporary storage box 3 when they fall, thus preventing damage to the straws. When a large number of straws fall into the temporary storage box 3, the straws in the temporary storage box 3 are transferred to the subsequent process through the cooperation of the three-dimensional moving component and the clamping component 43.

[0031] like Figure 1 , Figures 3-4As shown, the conveying mechanism 1 includes a first drive motor 11, a second drive motor 12, a conveyor belt 13, a fixed frame 14, a driven shaft 15, and a drive shaft 16. The driven shaft 15 and the drive shaft 16 are arranged opposite each other at both ends of the fixed frame 14. The conveyor belt 13 is arranged outside the driven shaft 15 and the drive shaft 16. The drive shaft 16 is connected to the first drive motor 11 and the second drive motor 12 through a linkage assembly. A speed measuring element is provided at the working end of the first drive motor 11. During normal operation, the first drive motor 11 is in the on state, and the second drive motor 12 is in the off state. The first drive motor 11 is connected to the drive shaft 16 through the linkage assembly, and there is no power connection between the second drive motor 12 and the drive shaft 16. The device monitors the speed of the first drive motor 11 in real time to ensure it is normal. When the speed of the first drive motor 11 is abnormal, the operator can control the connection status of the first drive motor 11, the second drive motor 12, and the drive shaft 16 through the linkage component. When the second drive motor 12 is connected to the drive shaft 16 through the linkage component and there is no power connection between the first drive motor 11 and the drive shaft 16, the operator can turn on the second drive motor 12 and turn off the first drive motor 11. At this time, the second drive motor 12 will drive the conveying mechanism 1 to work. Compared with the current straw conveying device, the present invention significantly improves the reliability and fault tolerance of straw conveying, effectively avoids production stoppage caused by equipment failure, and ensures the continuity of straw production.

[0032] like Figure 1 , Figures 5-8 As shown, the three-dimensional moving assembly includes a first moving module 44, a second moving module 45, and a third moving module 46. The third moving module 46 is mounted on the control box 41. The first moving module 44 is connected to the third moving module 46 via the second moving module 45. A connecting frame 42 is mounted on the working end of the first moving module 44. The connecting frame 42 is connected to the clamping assembly 43 via a rotating shaft and a rotary motor. This invention controls the clamping assembly 43 to move up and down, forward and backward, and left and right above the temporary storage box 3 via the first moving module 44, the second moving module 45, and the third moving module 46. The rotating shaft and the rotary motor control the clamping assembly 43 to rotate around the control box 3. With the shaft rotating, when the present invention grips the straws in the temporary storage box 3, the opening end of the clamping component 43 faces downward. The operator moves the clamping component 43 to the target position using the three-dimensional moving component. After the clamping component 43 grips the straw, it is rotated by the rotating shaft and the rotary motor until the opening end of the clamping component 43 faces upward. Then, the three-dimensional moving component moves the clamping component 43 to the next process. Compared with the current straw conveying device, the present invention does not require manual transfer of straws. At the same time, since the opening direction of the clamping component 43 is always upward during the transfer process, the risk of straws falling is greatly reduced.

[0033] like Figures 6-8 As shown, the clamping assembly 43 includes a connecting seat 431, fixing claws 434, and a connecting plate 435. Two sets of fixing claws 434 are arranged opposite each other on the lower sides of the connecting seat 431. The connecting plate 435 is positioned between the two sets of fixing claws 434. A double-headed cylinder is installed inside the connecting seat 431, with both ends connected to the two sets of fixing claws 434 respectively. The double-headed cylinder controls the movement of the two sets of fixing claws 434, moving them closer and further apart. Each set of fixing claws 434 contains a set of movable claws 433 and hydraulic oil. A reset assembly is installed on the outer side of each set of fixing claws 434. The upper end of the fixing claw 434 is connected to an external hydraulic pump via a hose, and the lower end of the fixing claw 434 is connected to the reset assembly. The extension and retraction of the two sets of movable claws 433 are controlled by the external hydraulic pump and the reset assembly. This invention grips the suction tube inside the temporary storage box 3. When retrieving the suction tube, the operator can use the three-dimensional moving component to move the clamping component 43 above the suction tube in the temporary storage box 3. Then, the external hydraulic pump is turned on to deliver hydraulic oil to the inside of the two sets of fixed claws 434. Under the action of hydraulic pressure, the two sets of movable claws 433 will extend into the suction tube in the temporary storage box 3 (at this time, there are multiple suction tubes in the space formed by the two sets of movable claws 433 and the two sets of fixed claws 434). Then, the double-headed cylinder is turned on to bring the two sets of fixed claws 434 closer to each other (the two sets of movable claws 433 move closer simultaneously). During this process, multiple suction tubes will be squeezed and fixed in the space formed by the two sets of movable claws 433 and the two sets of fixed claws 434. Finally, the clamping component 43 is rotated by the rotating shaft and the rotary motor until the open end of the clamping component 43 faces upward. The clamping component 43 is then moved to the next process by the three-dimensional moving component.

[0034] like Figures 6-7As shown, the movable claw 433 has a sensing groove 4331 at the end away from the fixed claw 434. A sensing block 4332 and a sensing spring are disposed within the sensing groove 4331. One end of the sensing spring is fixedly connected to the sensing block 4332, and the other end is fixedly connected to the fixed claw 434. A first piezoelectric plate is embedded in the end of the sensing block 4332 closest to the sensing spring. When the two sets of movable claws 433 extend into the straws in the temporary storage box 3, the sensing block 4332 will contact the straws in the temporary storage box 3 first. Under normal circumstances, the sensing block 4332 will pass directly through the area between two adjacent straws, and the resistance experienced by the sensing block 4332 is insufficient to deform the sensing spring. However, when the straws in the temporary storage box 3 are stacked too tightly due to excessive stacking or other reasons, the sensing block 4332 will encounter greater resistance when passing through the area between two adjacent straws. At this time, the sensing spring will undergo elastic deformation and transmit the force to the first piezoelectric plate. Based on the piezoelectric effect, the piezoelectric element allows operators to determine the stacking status of straws in the storage box 3 by detecting the electrical signal generated by the first piezoelectric element. In such cases, the operator can control the clamping component 43 to sway within the storage box 3 along the direction of the conveying mechanism 1 via the second moving module 45. The swaying of the clamping component 43 causes the straws in the storage box 3 to move in a regular pattern, gradually loosening the originally tightly packed straws. This allows the two sets of movable claws 433 to continue extending into the straws in the storage box 3 to grab and transport them away. Compared to current manual straw gripping or other straw gripping mechanisms, this invention can monitor the stacking status of straws. When the straws are stacked too tightly, it can automatically loosen the tightly packed straws. Through the above technical solution, it effectively prevents the movable claws 433 from applying excessive force to the straws, which could cause deformation and damage to the straws.

[0035] like Figure 8 As shown, the reset assembly includes a reset frame 432, which contains a piston 4321 and a reset spring. An external hydraulic pump supplies hydraulic oil to the fixed claw 434, so that when the movable claw 433 extends, the hydraulic oil at the lower end of the fixed claw 434 enters the reset frame 432, causing the reset spring to deform and compress. When the operator needs the movable claw 433 to reset, the hydraulic oil supplied to the fixed claw 434 is simply pumped out by the external hydraulic pump. Under the action of the reset spring, the hydraulic oil squeezed into the reset frame 432 will flow back into the fixed claw 434, and the movable claw 433 will automatically reset under hydraulic pressure.

[0036] like Figure 2As shown, the correction assembly includes a lifting cylinder 21, a mounting frame 22, an offset motor 24, and grippers 25. The lifting cylinder 21 is located above the support 2, and the mounting frame 22 is located inside the support 2. The mounting frame 22 and the lifting cylinder 21 are connected through the offset motor 24. Two sets of grippers 25 are located below the mounting frame 22. A telescopic cylinder is located inside the mounting frame 22 and is connected to the two sets of grippers 25.

[0037] like Figure 2 As shown, a fixed seat 23 is provided on the top of the support 2, and a visual inspection device is provided at the middle position of the fixed seat 23. The visual inspection device is perpendicular to the movement direction of the conveyor belt 13.

[0038] When the conveying mechanism 1 delivers the straw to the area below the correction component, the lifting cylinder 21 controls the mounting frame 22 to descend, and the telescopic cylinder controls the two sets of grippers 25 to move closer to each other until they clamp the straw. The visual inspection device detects whether the position of the straw is perpendicular to the movement direction of the conveying mechanism 1. When the position of the straw is not perpendicular to the movement direction of the conveying mechanism 1, the offset motor 24 controls the mounting frame 22, the two sets of grippers 25, and the straw to rotate so that the position of the straw is perpendicular to the movement direction of the conveying mechanism 1. Finally, the telescopic cylinder controls the two sets of grippers 25 to move away from each other and release the straw.

[0039] like Figure 2 As shown, each of the two sets of grippers 25 has an air bladder at one end that is close to each other. Each air bladder contains a second piezoelectric element. Both sets of second piezoelectric elements are electrically connected to the telescopic cylinder. When the grippers 25 are holding the straw, the two sets of air bladders will contact the straw first, thus effectively avoiding the indentation or deformation of the straw surface when gripping it with traditional hard grippers. In addition, when the two sets of air bladders contact the straw, if the two sets of grippers 25 continue to move closer to each other, the air pressure inside the two sets of air bladders will change, which will cause the second piezoelectric element to generate an electrical signal. The telescopic cylinder will automatically stop when it detects the electrical signal generated by the second piezoelectric element, thereby ensuring that the clamping force is accurately matched with the straw diameter and preventing the straw from being deformed or not clamped tightly due to excessive or insufficient clamping force.

[0040] like Figure 4As shown, the linkage assembly includes two first transmission discs 141, two second transmission discs 161, and two pulleys 17. The two first transmission discs 141 are arranged opposite each other at both ends of the fixed frame 14, and the two second transmission discs 161 are arranged opposite each other at both ends of the drive shaft 16. The two pulleys 17 are respectively arranged between adjacent first transmission discs 141 and second transmission discs 161. Each pulley 17 has an electromagnet 171 inside. One pulley 17 is connected to the first drive motor 11 via a first belt, and the other pulley 17 is connected to the second drive motor 12 via a second belt. In this invention, the two second transmission discs 161 are fixedly connected to the drive shaft 16, the two first transmission discs 141 are fixedly connected to the fixed frame 14, and the two pulleys 17 are slidably mounted at both ends of the drive shaft 16. When the first drive motor 11 needs to be connected to the drive shaft 16, the electromagnet 171 inside the pulley 17 connected to the first drive motor 11 generates a magnetic field that attracts the second transmission discs 161 (the electromagnet 171 inside the pulley 17 connected to the second drive motor 12). A magnetic field is generated to attract the first transmission disk 141. At this time, the pulley 17 and the second transmission disk 161 connected to the first drive motor 11 are attracted together. Under the action of the pulley 17 and the second transmission disk 161, the first drive motor 11 drives the drive shaft 16 to rotate. When the second drive motor 12 needs to be connected to the drive shaft 16, the electromagnet 171 set inside the pulley 17 connected to the second drive motor 12 generates a magnetic field to attract the second transmission disk 161 (the electromagnet 171 set inside the pulley 17 connected to the first drive motor 11 generates a magnetic field to attract the first transmission disk 141). At this time, the pulley 17 and the second transmission disk 161 connected to the second drive motor 12 are attracted together. Under the action of the pulley 17 and the second transmission disk 161, the second drive motor 12 drives the drive shaft 16 to rotate. Through the above technical solution, the present invention can adjust the connection state of the first drive motor 11 and the second drive motor 12 with the drive shaft 16 as needed, thereby effectively avoiding production stoppages caused by equipment failure and ensuring the continuity of straw production.

[0041] The working principle of this invention is as follows: When the cut straw falls onto the conveying mechanism 1, the conveying mechanism 1 moves the straw below the correction component, and then transports it to the temporary storage box 3. When the straw is below the correction component, a visual inspection device detects whether the position of the straw is perpendicular to the movement direction of the conveying mechanism 1. When the position of the straw is not perpendicular to the movement direction of the conveying mechanism 1, two sets of grippers 25 clamp the straw. The offset motor 24 controls the mounting frame 22, the two sets of grippers 25, and the straw to rotate, so that the position of the straw is perpendicular to the movement direction of the conveying mechanism 1. The feeding mechanism 1 moves in the following direction: when the straw is in the correct position, the two sets of grippers 25 release the straw, and then the straw continues to move and finally falls into the temporary storage box 3. When too many straws fall into the temporary storage box 3, the operator can use the three-dimensional moving component to move the clamping component 43 above the straws in the temporary storage box 3, and then use the clamping component 43 to clamp multiple straws. The clamping component 43 is rotated by the rotating shaft and the rotary motor until the open end of the clamping component 43 faces upward. Finally, the clamping component 43 is moved to the next process by the three-dimensional moving component.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A straw delivery device based on flexible clamping, characterized in that: The conveying device includes a conveying mechanism (1), a temporary storage box (3) and a transfer mechanism (4). A support (2) is provided on the conveying mechanism (1), and a correction component is provided on the support (2). The temporary storage box (3) is located at the discharge end of the conveying mechanism (1). The transfer mechanism (4) is located at the end of the temporary storage box (3) away from the conveying mechanism (1). The transfer mechanism (4) includes a control box (41), a three-dimensional moving component and a clamping component (43). The three-dimensional moving component is located above the control box (41), and the clamping component (43) is located above the temporary storage box (3). The clamping component (43) is connected to the three-dimensional moving component through a connecting frame (42). The conveying mechanism (1) includes a first drive motor (11), a second drive motor (12), a conveyor belt (13), a fixed frame (14), a driven shaft (15), and a drive shaft (16). The driven shaft (15) and the drive shaft (16) are arranged opposite to each other at both ends of the fixed frame (14). The conveyor belt (13) is arranged outside the driven shaft (15) and the drive shaft (16). The drive shaft (16) is connected to the first drive motor (11) and the second drive motor (12) through a linkage assembly. A speed measuring element is provided at the working end of the first drive motor (11). The clamping assembly (43) includes a connecting seat (431), a fixing claw (434), and a connecting plate (435). The fixing claw (434) is provided in two sets, and the two sets of fixing claws (434) are arranged opposite each other on the lower sides of the connecting seat (431). The connecting plate (435) is arranged between the two sets of fixing claws (434). A double-headed cylinder is provided in the connecting seat (431). The two ends of the double-headed cylinder are respectively connected to the two sets of fixing claws (434). Each set of fixing claws (434) is provided with a set of movable claws (433). A set of reset components is provided on the outside of each set of fixing claws (434). The upper end of the fixing claw (434) is connected to an external liquid pump through a hose, and the lower end of the fixing claw (434) is connected to the reset components. The movable claw (433) is provided with a sensing groove (4331) at one end away from the fixed claw (434). A sensing block (4332) and a sensing spring are provided in the sensing groove (4331). One end of the sensing spring is fixedly connected to the sensing block (4332), and the other end of the sensing spring is fixedly connected to the fixed claw (434). A first piezoelectric sheet is embedded in the end of the sensing block (4332) near the sensing spring. The linkage assembly includes two first transmission discs (141), two second transmission discs (161), and two pulleys (17). The two first transmission discs (141) are arranged opposite each other at both ends of the fixed frame (14), and the two second transmission discs (161) are arranged opposite each other at both ends of the drive shaft (16). The two pulleys (17) are respectively arranged between adjacent first transmission discs (141) and second transmission discs (161). Each pulley (17) is equipped with an electromagnet (171). One pulley (17) is connected to the first drive motor (11) through the first belt, and the other pulley (17) is connected to the second drive motor (12) through the second belt.

2. The straw delivery device based on flexible clamping according to claim 1, characterized in that: The three-dimensional moving component includes a first moving module (44), a second moving module (45), and a third moving module (46). The third moving module (46) is mounted on the control box (41). The first moving module (44) is connected to the third moving module (46) through the second moving module (45). The connecting frame (42) is mounted on the working end of the first moving module (44). The connecting frame (42) is connected to the clamping component (43) through a rotating shaft and a rotary motor.

3. The straw delivery device based on flexible clamping according to claim 1, characterized in that: The reset assembly includes a reset frame (432), and a piston (4321) and a reset spring are disposed inside the reset frame (432).

4. The straw delivery device based on flexible clamping according to claim 1, characterized in that: The correction assembly includes a lifting cylinder (21), a mounting frame (22), an offset motor (24), and grippers (25). The lifting cylinder (21) is located above the bracket (2), and the mounting frame (22) is located inside the bracket (2). The mounting frame (22) and the lifting cylinder (21) are connected by the offset motor (24). Two sets of grippers (25) are located below the mounting frame (22). A telescopic cylinder is located inside the mounting frame (22), and the telescopic cylinder controls the movement of the two sets of grippers (25).

5. A straw delivery device based on flexible clamping according to claim 4, characterized in that: Each of the two sets of grippers (25) has an air bladder at one end that is close to each other, and each air bladder has a second piezoelectric plate inside.

6. The straw delivery device based on flexible clamping according to claim 4, characterized in that: The top of the support (2) is provided with a fixed seat (23), and a visual inspection device is provided at the middle position of the fixed seat (23). The visual inspection device is perpendicular to the movement direction of the conveyor belt (13).

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