Precise cutting device for fresh-cut leaves

Abstract

The invention discloses a precise cutting device for fresh-cut leaves. The precise cutting device comprises a cutting mechanism, a feeding groove assembly and a feeding mechanism. A power component is arranged on the rear side of the cutting mechanism, a transmission shaft and a cutter head are driven to rotate through belt transmission, the cutter head is located in an inner cavity defined by the discharging hopper and the top cover, a containing component is correspondingly arranged below the discharging hopper, and a protection component is arranged on the outer side of the discharging hopper to protect a transmission structure. The feeding groove assembly is fixed to the front side of the cutting mechanism, air cylinders are arranged on the two sides of the feeding groove assembly and drive a push plate to move through telescopic shafts, and the feeding mechanism is driven. The feeding mechanisms are symmetrically arranged on the two sides of the feeding groove, driving wheels are driven by driving motors to rotate and matched with driven wheels to achieve chain plate transmission, chain plates can make contact with to-be-cut materials, and material conveying and clamping posture keeping are achieved. According to the device, stable conveying and cutting operation of fresh-cut leaves is completed through cooperation of all parts, and the cutting requirements of fresh crops are met.

Description

Technical Field

[0001] This invention relates to the field of fresh leaf cutting and slicing machine technology, and specifically to a precise cutting device for fresh leaves. Background Technology

[0002] In agricultural production and food processing, the cutting of fresh-cut leafy crops is a crucial pre-processing step, directly impacting subsequent processing efficiency and product quality. Currently, existing equipment for cutting fresh-cut leaves suffers from numerous shortcomings, failing to meet the demands for efficient and stable operations. Some cutting devices rely on manual feeding, which is not only inefficient but also prone to inconsistent material feeding posture, leading to cutting position deviations and affecting the uniformity of the cut material. Some devices with automatic feeding functions suffer from poorly designed clamping structures, unable to flexibly adapt to different sizes of fresh-cut leaves. Overly tight clamping can cause material breakage, while overly loose clamping can cause material to shake and shift during transport, further affecting cutting results. These deficiencies in existing technologies severely restrict the large-scale and automated operation of fresh-cut leaf cutting, necessitating a rationally designed fresh-cut leaf cutting device with precise clamping and feeding capabilities to solve these technical problems. Summary of the Invention

[0003] In view of the shortcomings mentioned above in the background technology, a technical solution is provided for a precise cutting device for fresh-cut leaves.

[0004] It includes a cutting mechanism, and a feeding trough assembly is fixedly connected to the front side of the cutting mechanism. Feeding mechanisms are provided on the left and right sides of the feeding trough assembly.

[0005] The cutting mechanism includes a frame, a hopper fixedly connected inside the frame, and a top cover fixed to the top port of the hopper. A drive shaft is rotatably mounted on the rear side of the frame, penetrating into the inner cavity of the hopper. A cutting disc located in the front area of ​​the inner cavity of the hopper and the top cover is fixed at the front end of the drive shaft. An electric motor is fixed at the bottom of the inner cavity of the frame. The output shaft of the electric motor is connected to a driven pulley through a coupling. A driving pulley is fixed at the rear end of the drive shaft, and a belt drives between the driving pulley and the driven pulley.

[0006] The feeding trough assembly includes a feeding trough fixed to the front end face of the hopper and the top cover, and cylinders located on the left and right sides of the feeding trough. The telescopic shafts of the cylinders are all fixedly connected to push plates, and the bottom of the cylinders is connected to a support frame fixed to the upper surface of the frame.

[0007] The feeding mechanism includes a frame located inside the left and right side walls of the feeding trough, and a driven wheel and a drive wheel rotatably arranged at the front and rear positions inside the frame cavity. A drive motor is fixed on the top surface of the frame, and the bottom output shaft of the drive motor is fixedly connected to the top end of the drive wheel through a coupling. Multiple chain plates connected end to end are wound and driven between the drive wheel and the driven wheel.

[0008] In the above technical solution, preferably: the front end face of the hopper and the top cover is provided with a feed port that connects with the rear end port of the feed trough, and there is a distance of 2-3mm between the front end face of the cutting disc and the front side wall of the inner cavity of the top cover and the hopper.

[0009] In the above technical solution, preferably: a material holding trough is placed on the left side of the frame below the material discharge port of the hopper, and a pulley cover is fixed on the rear end face of the frame to cover the driving pulley and the driven pulley.

[0010] In the above technical solution, preferably: a bearing seat adapted to rotate with the shaft body is fixed on the rear side of the top surface of the frame, and the rear end face of the hopper and the top cover are provided with through holes for the drive shaft to pass through and rotate, and a sealed bearing is installed inside the through hole.

[0011] In the above technical solution, preferably: the left and right side walls of the feeding trough are provided with notches for the feeding mechanism to move closer to each other and further away from each other, and a support base is fixedly connected to the bottom surface of the feeding trough, and the bottom end of the support base is fixedly connected to the front surface of the frame.

[0012] In the above technical solution, preferably: the cylinders are arranged in a mirror image symmetrically with the central axis of the feed trough as the reference, and the cylinders are used to synchronously drive the feeding mechanism to move closer or further away from each other, thereby clamping or releasing the fresh crops to be cut placed inside the feed trough.

[0013] In the above technical solution, preferably, the end face of the push plate that is far away from each other is fixedly connected to the surface of the frame that is far away from each other.

[0014] In the above technical solution, preferably: the upper and lower ends of the driven wheel are rotatably connected to the upper and lower surfaces of the inner cavity of the frame through bearings, the bottom end of the drive wheel is rotatably connected to the bottom surface of the inner cavity of the frame through bearings, and the top end of the drive wheel is fixed with a rotating shaft that passes through the frame and is connected to the output shaft of the drive motor.

[0015] In the above technical solution, preferably, two fixing brackets are fixedly connected to one side surface of each frame, and the side of the fixing bracket away from the frame is fixedly connected to the side of the push plate that is close to it.

[0016] In the above technical solution, preferably, the side surfaces of the chain plates that are close to each other are in contact with the fresh crops to be cut placed inside the feed trough, for conveying the fresh crops to contact the cutting disc and for holding the fresh crops in a uniform and stable feeding posture.

[0017] As can be seen from the above technical solution, the present invention provides a precise cutting device for fresh-cut leaves, which, compared with the prior art, has the following beneficial effects:

[0018] This technical solution enables the orderly conveying and cutting of fresh-cut leaves. Its rationally designed transmission structure ensures smooth power transmission and effectively guarantees stable cutting operations. The drive components on both sides of the feed chute drive the feeding mechanism to precisely conform to the material, achieving reliable clamping and posture maintenance, preventing material deviation during conveying. Combined with the transmission-driven conveying structure, the material is smoothly transported to the cutting area. The scientifically designed spacing of the cutting areas minimizes component friction wear, extending the device's lifespan. Protective components in the transmission area isolate the device from debris, enhancing operational safety. The overall structure is compact, with stable connections between components, facilitating installation and maintenance. It is adaptable to the cutting needs of different sizes of fresh agricultural products, ensuring continuous operation without complex procedures, reducing the probability of malfunctions during operation, and improving overall operational efficiency and stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 Schematic diagram of a fresh leaf cutting device;

[0021] Figure 2 A schematic diagram of the back of the fresh leaf cutting device;

[0022] Figure 3 This is an exploded view of the cutting mechanism;

[0023] Figure 4 This is a schematic diagram of the feed trough assembly;

[0024] Figure 5 This is a schematic diagram of the feeding mechanism.

[0025] Appendix Figure 1 - Appendix Figure 5 The correspondence between the components is as follows:

[0026] 1. Cutting Mechanism; 1-1. Frame; 1-2. Feed Hopper; 1-3. Material Trough; 1-4. Motor; 1-5. Pulley Cover; 1-6. Driven Pulley; 1-7. Driven Pulley; 1-8. Drive Shaft; 1-9. Cutting Disc; 1-10. Top Cover; 2. Feeding Slot Assembly; 2-1. Feeding Slot; 2-2. Push Plate; 2-3. Cylinder; 2-4. Support Frame; 3. Feeding Mechanism; 3-1. Frame; 3-2. Drive Motor; 3-3. Drive Wheel; 3-4. Fixing Frame; 3-5. Chain Plate; 3-6. Driven Wheel. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, and not all embodiments. 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. In order to provide a clearer explanation and description of the technical solutions and implementation methods of the present invention, the following describes specific embodiments that implement the preferred technical solutions of the present invention.

[0028] The precision cutting device for fresh-cut leaves disclosed in this embodiment consists of a cutting mechanism 1, a feeding trough assembly 2, and a feeding mechanism 3. The components work together to achieve stable conveying and cutting of fresh-cut leaves. Its specific structure is as follows: the front side of the cutting mechanism 1 is fixedly connected to the feeding trough assembly 2, and the feeding mechanism 3 is correspondingly arranged on the left and right sides of the feeding trough assembly 2. The feeding mechanism 3 is driven by the feeding trough assembly 2 and is used to convey the fresh crops to be cut in the feeding trough assembly 2 to the cutting mechanism 1 to complete the cutting. The cutting mechanism 1 includes a frame 1-1, a feeding hopper 1-2, a top cover 1-10, a drive shaft 1-8, a cutting disc 1-9, a motor 1-4, a driven pulley 1-6, a driving pulley 1-7, and a belt. The feeding hopper 1-2 is fixed inside the frame 1-1, and the top cover 1-10 is fixed at the top port of the feeding hopper 1-2. The front end faces of the feeding hopper 1-2 and the top cover 1-10 are provided with feeding ports, which are connected to the rear end port of the feeding trough 2-1 in the feeding trough assembly 2, so that the material to be cut in the feeding trough 2-1 can enter the inner cavity formed by the feeding hopper 1-2 and the top cover 1-10 through the feeding port.

[0029] The drive shaft 1-8 is rotatably mounted on the rear side of the frame 1-1 and extends through the inner cavity of the hopper 1-2. A bearing seat is fixed on the rear side of the top surface of the frame 1-1. The bearing seat is adapted to rotate with the shaft of the drive shaft 1-8 and provides support for the rotation of the drive shaft 1-8. The rear end faces of the hopper 1-2 and the top cover 1-10 are provided with through holes for the drive shaft 1-8 to pass through and rotate. Sealed bearings are installed inside the through holes to ensure smooth rotation of the drive shaft 1-8 and to prevent material debris from entering the through holes during the cutting process and affecting the transmission stability. The cutting disc 1-9 is fixed to the front end of the drive shaft 1-8, and the cutting disc 1-9 is located in the front area of ​​the inner cavity of the hopper 1-2 and the top cover 1-10. The front end face of the cutting disc 1-9 maintains a distance of 2-3mm from the front side wall of the inner cavity of the top cover 1-10 and the hopper 1-2. This distance setting can avoid friction between the cutting disc 1-9 and the side wall of the cavity during the rotation process, and at the same time ensure that the material entering the cavity can fully contact the cutting disc 1-9 to achieve cutting. The motor 1-4 is fixed at the bottom of the inner cavity of the frame 1-1. The output shaft of the motor 1-4 is connected to the driven pulley 1-6 through a coupling. The driving pulley 1-7 is fixed at the rear end of the transmission shaft 1-8. A belt is connected between the driving pulley 1-7 and the driven pulley 1-6. A pulley cover 1-5 is fixed on the rear end face of the frame 1-1. The pulley cover 1-5 completely covers the driving pulley 1-7 and the driven pulley 1-6, which protects the belt drive structure. A material trough 1-3 is placed on the left side of the frame 1-1. The material trough 1-3 is located below the discharge port of the hopper 1-2 and is used to receive the material after cutting.

[0030] The feeding trough assembly 2 includes a feeding trough 2-1, a cylinder 2-3, a push plate 2-2, and a support frame 2-4. The feeding trough 2-1 is fixed to the front end face of the hopper 1-2 and the top cover 1-10. A support base is fixedly connected to the bottom surface of the feeding trough 2-1, and the bottom end of the support base is fixedly connected to the front surface of the frame 1-1 to achieve stable fixation of the feeding trough 2-1. Notches are provided on both the left and right side walls of the feeding trough 2-1 to allow the feeding mechanism 3 to move closer and further apart, providing clearance for the movement of the feeding mechanism 3. The cylinder 2-3 is located on the left and right sides of the feeding trough 2-1. The two cylinders 2-3 are symmetrically arranged in a mirror image with the central axis of the feeding trough 2-1 as the reference. The bottom of the cylinder 2-3 is connected to the support frame 2-4, which is fixed to the upper surface of the frame 1-1, thus achieving fixed installation of the cylinder 2-3. Push plate 2-2 is fixedly connected to the telescopic shaft of cylinder 2-3. Cylinder 2-3 is used to synchronously drive push plate 2-2 to move, thereby causing feeding mechanism 3 to move closer or further away from each other, realizing the clamping or release of fresh crops to be cut placed inside feed trough 2-1. Feeding mechanism 3 includes frame 3-1, driven wheel 3-6, drive wheel 3-3, drive motor 3-2, chain plate 3-5 and fixed frame 3-4. Frame 3-1 is located inside the left and right side walls of feed trough 2-1. The side of push plate 2-2 that is far away from each other is fixedly connected to the side of frame 3-1 that is far away from each other. At the same time, two fixed frames 3-4 are fixedly connected to the side of frame 3-1 that is close to each other. The side of fixed frame 3-4 that is far away from frame 3-1 is fixedly connected to the side of push plate 2-2 that is close to each other. Through the multiple fixation of push plate 2-2 with frame 3-1 and fixed frame 3-4, frame 3-1 can move synchronously and stably when cylinder 2-3 drives push plate 2-2 to move.

[0031] Driven wheel 3-6 and drive wheel 3-3 are rotatably positioned at the front and rear of the inner cavity of frame 3-1, respectively. The upper and lower ends of driven wheel 3-6 are rotatably connected to the upper and lower surfaces of the inner cavity of frame 3-1 through bearings. The bottom end of drive wheel 3-3 is rotatably connected to the bottom surface of the inner cavity of frame 3-1 through bearings. A rotating shaft is fixed to the top end of drive wheel 3-3. The rotating shaft passes through frame 3-1 and is fixedly connected to the output shaft of drive motor 3-2 through a coupling. Drive motor 3-2 is fixed to the top surface of frame 3-1. Drive motor 3-2 can drive drive wheel 3-3 to rotate. The chain plate 3-5 consists of multiple plates, which are connected end-to-end and wound around each other. This winding transmission mechanism is positioned between the drive wheel 3-3 and the driven wheel 3-6. When the drive wheel 3-3 rotates, it drives the chain plates 3-5 synchronously. The surfaces of the chain plates 3-5 that are close to each other contact the fresh crops to be cut placed inside the feed trough 2-1. Under the transmission action of the chain plates 3-5, the fresh crops are conveyed to the cutting disc 1-9. Simultaneously, in a clamping state, the chain plates 3-5 maintain a uniform and stable feeding posture for the fresh crops, working in conjunction with the cutting mechanism 1 to complete the cutting operation. The entire device uses the cutting mechanism 1 to provide cutting power, the feed trough assembly 2 to carry and clamp the material, and the feeding mechanism 3 to ensure smooth material transport. The structural design and connection of each component ensure the orderly operation of the fresh-cut leaf cutting operation. The stable connection relationship of each component ensures smooth transmission, adaptability to the cutting needs of different sizes of fresh crops, and a compact structural layout for easy installation and maintenance.

[0032] The workflow of this technical solution is as follows: Before operation, the fresh crops to be cut are placed inside the feed trough 2-1. After placement, cylinder 2-3 is activated, and the two cylinders 2-3 synchronously drive the telescopic shaft to extend, causing the push plate 2-2 to move towards the central axis of the feed trough 2-1. During the movement of the push plate 2-2, the frame 3-1 is moved synchronously. The frame 3-1 moves inward along the notches on the left and right sides of the feed trough 2-1 until the surface of the chain plate 3-5 that is close to each other contacts the two sides of the fresh crops to be cut. At this time, cylinder 2-3 stops moving, and the chain plate 3-5 forms a contact surface with the fresh crops. Clamping state; subsequently, drive motor 3-2 starts, and the output shaft of drive motor 3-2 drives drive wheel 3-3 to rotate. During the rotation of drive wheel 3-3, driven wheel 3-6 rotates synchronously through chain plate 3-5. Chain plate 3-5 transmits power along the outer circumference of drive wheel 3-3 and driven wheel 3-6. Since chain plate 3-5 remains in contact with the fresh crop, under the transmission action of chain plate 3-5, the fresh crop moves along the length of feed chute 2-1 towards the cutting mechanism 1. At the same time, motor 1-4 starts, and the output shaft of motor 1-4 drives driven pulley 1-6 to rotate through coupling. The pulley 1-6 drives the drive pulley 1-7 to rotate via a belt. The drive pulley 1-7 drives the transmission shaft 1-8 to rotate around its own axis. The transmission shaft 1-8 synchronously drives the cutting disc 1-9 to rotate. As the fresh crop continues to move, its front end enters the inner cavity formed by the hopper 1-2 and the top cover 1-10 through the feed inlet on the front end face of the hopper 1-2 and the top cover 1-10, and gradually approaches the rotating cutting disc 1-9. Under the rotation of the cutting disc 1-9, the fresh crop is cut, and the material fragments produced by cutting slide down the inner wall of the hopper 1-2 and are discharged from the bottom of the hopper 1-2. The material falls into the lower material trough 1-3. After all the fresh crops in a single batch have been cut, the motor 1-4 and drive motor 3-2 stop running, the cutting disc 1-9 and chain plate 3-5 stop rotating, and then the cylinder 2-3 drives the telescopic shaft to retract, causing the push plate 2-2 to move away from the central axis of the feed trough 2-1. The push plate 2-2 simultaneously drives the frame 3-1 and chain plate 3-5 to move outward. The chain plate 3-5 releases the clamp on the residual material, and the staff can clean the inside of the feed trough 2-1 and the inner cavity of the discharge hopper 1-2. After cleaning, the device returns to its initial state and waits for the next batch of operation.

[0033] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A precision cutting device for fresh-cut leaves, comprising a cutting mechanism (1), characterized in that: The cutting mechanism (1) is fixedly connected to the front side of the feed trough assembly (2), and the feed trough assembly (2) is provided with feeding mechanisms (3) on the left and right sides. The cutting mechanism (1) includes a frame (1-1), a hopper (1-2) fixedly connected inside the frame (1-1), and a top cover (1-10) fixedly at the top port of the hopper (1-2). A drive shaft (1-8) is rotatably provided on the rear side of the frame (1-1) and extends into the inner cavity of the hopper (1-2). A cutting disc (1-9) located in the front area of ​​the inner cavity of the hopper (1-2) and the top cover (1-10) is fixed at the front end of the drive shaft (1-8). A motor (1-4) is fixed at the bottom of the inner cavity of the frame (1-1). The output shaft of the motor (1-4) is connected to a driven pulley (1-6) through a coupling. A drive pulley (1-7) is fixed at the rear end of the drive shaft (1-8), and a belt drives between the drive pulley (1-7) and the driven pulley (1-6). The feeding trough assembly (2) includes a feeding trough (2-1) fixed on the front end face of the hopper (1-2) and the top cover (1-10), and cylinders (2-3) located on the left and right sides of the feeding trough (2-1). The telescopic shafts of the cylinders (2-3) are all fixedly connected to push plates (2-2), and the bottom of the cylinders (2-3) is connected to a support frame (2-4) fixed on the upper surface of the frame (1-1). The feeding mechanism (3) includes a frame (3-1) located inside the left and right side walls of the feed trough (2-1), and a driven wheel (3-6) and a drive wheel (3-3) rotatably arranged in the front and rear positions of the inner cavity of the frame (3-1). A drive motor (3-2) is fixed on the top surface of the frame (3-1). The bottom output shaft of the drive motor (3-2) is fixedly connected to the top end of the drive wheel (3-3) through a coupling. Multiple chain plates (3-5) connected end to end are wound and driven between the drive wheel (3-3) and the driven wheel (3-6).

2. The fresh-cut leaf precision cutting device according to claim 1, characterized in that: The front end face of the hopper (1-2) and the top cover (1-10) is provided with a feed port that connects with the rear end port of the feed trough (2-1). There is a 2-3mm gap between the front end face of the cutting disc (1-9) and the front side wall of the inner cavity of the top cover (1-10) and the hopper (1-2).

3. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: A material trough (1-3) is placed on the left side of the frame (1-1) below the discharge port of the hopper (1-2), and a pulley cover (1-5) is fixed on the rear end face of the frame (1-1) to cover the driving pulley (1-7) and the driven pulley (1-6).

4. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: The rear side of the top surface of the frame (1-1) is fixed with a bearing seat that is adapted to rotate with the shaft of the drive shaft (1-8). The rear end face of the hopper (1-2) and the top cover (1-10) are provided with through holes for the drive shaft (1-8) to pass through and rotate. Sealed bearings are installed inside the through holes.

5. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: The left and right side walls of the feed trough (2-1) are provided with notches for feeding mechanisms (3) to approach and move away from each other. A support base is fixedly connected to the bottom surface of the feed trough (2-1), and the bottom end of the support base is fixedly connected to the front surface of the frame (1-1).

6. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: The cylinders (2-3) are all arranged in a mirror image symmetrically with the central axis of the feed trough (2-1) as the reference. The cylinders (2-3) are used to synchronously drive the feeding mechanism (3) to move closer or further away from each other, thereby clamping or releasing the fresh crops to be cut placed inside the feed trough (2-1).

7. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: The push plate (2-2) is fixedly connected to the side face of the frame (3-1) that is far from each other.

8. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: The upper and lower ends of the driven wheel (3-6) are rotatably connected to the upper and lower surfaces of the inner cavity of the frame (3-1) through bearings. The bottom end of the drive wheel (3-3) is rotatably connected to the bottom surface of the inner cavity of the frame (3-1) through bearings. The top end of the drive wheel (3-3) is fixed with a rotating shaft that passes through the frame (3-1) and is connected to the output shaft of the drive motor (3-2).

9. The precise cutting device for fresh-cut leaves according to claim 1, characterized in that: Two fixing brackets (3-4) are fixedly connected to one side surface of each of the frames (3-1). The side of the fixing bracket (3-4) away from the frame (3-1) is fixedly connected to the side of the push plate (2-2) that is close to each other.

10. A precision cutting device for fresh-cut leaves according to claim 1, characterized in that: The side surfaces of the chain plates (3-5) that are close to each other come into contact with the fresh crops to be cut placed inside the feed trough (2-1), which is used to transport the fresh crops to contact the cutting disc (1-9) and to hold the fresh crops in a uniform and stable feeding posture.

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