Miniature vibration knife

Abstract

The utility model discloses a miniature vibration knife, which belongs to the technical field of miniature vibration knives, and comprises a four-hole plate, an aluminum shell, a motor plate, a knife protection seat and a motor, a plurality of sections of eccentric shafts, a crankshaft and a knife head connecting rod are arranged in the aluminum shell, and a knife clamp is arranged in the knife protection seat; the motor is connected with the multi-section eccentric shaft, the multi-section eccentric shaft is connected with the crankshaft, the crankshaft is connected with the tool bit connecting rod, the tool bit connecting rod is connected with the tool clamping device, and the tool clamping device is connected with the blade. The strawberry pedicle removing cutter is specially designed for strawberry pedicle removing, strawberry pedicle cutting is achieved through high-frequency low-amplitude mechanical vibration, large cutting force is not needed, the work efficiency of strawberry pedicle cutting is improved, and intelligent and automatic development of strawberry planting is promoted.

Description

Technical Field

[0001] This utility model relates to the field of micro vibratory knife technology, specifically to a micro vibratory knife. Background Technology

[0002] Strawberries possess high nutritional, medicinal, and ecological value. Fragrant, juicy, and rich in nutrients, strawberries are known as the "Queen of Fruits" and are among the earliest fruits to ripen, earning them the nickname "First Fruit of Early Spring." Strawberries contain high levels of vitamins, calcium, phosphorus, iron, and other nutrients, and contain numerous active substances that can quench thirst, aid digestion, and provide relief from stagnation, thus possessing certain medicinal value. Strawberries can also be used as ornamental and landscaping plants.

[0003] With the rapid development of technology, the planting industry is becoming increasingly intelligent and automated. However, it is currently difficult to automate the removal of strawberry stems. One reason for this is the lack of suitable stem-removing tools that can be installed in the motion execution unit of a robotic arm and have the robotic arm precisely position the strawberry to complete the cutting process. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a miniature vibrating knife; this miniature vibrating knife is a tool specifically designed for removing strawberry stems. This application achieves strawberry stem cutting through high-frequency, low-amplitude mechanical vibration, eliminating the need for large cutting force, thus improving the efficiency of strawberry stem removal and promoting the intelligent and automated development of strawberry cultivation.

[0005] To solve the above-mentioned technical problems, this utility model provides a miniature vibrating knife, including a four-hole plate, an aluminum shell, a motor plate, a blade guard, and a motor. The aluminum shell is provided with multiple eccentric shafts, a crankshaft, and a blade connecting rod. The blade guard is provided with a blade clamp. The motor is connected to the multiple eccentric shafts, the multiple eccentric shafts are connected to the crankshaft, the crankshaft is connected to the blade connecting rod, the blade connecting rod is connected to the blade clamp, and the blade clamp is connected to the blade.

[0006] In a further improvement of this utility model, the motor is connected to a transmission shaft, and a crankshaft lower bearing and a multi-segment eccentric shaft are sequentially sleeved on the transmission shaft from bottom to top. A crankshaft center bearing and an upper crankshaft bearing are sequentially sleeved on the multi-segment eccentric shaft from bottom to top, and the crankshaft center bearing is connected to the crankshaft.

[0007] Through the above design, this solution makes it easier for multiple eccentric shafts to drive the crankshaft to rotate.

[0008] In a further improvement of this utility model, the lower crankshaft bearing is mounted on the motor plate, and the upper crankshaft bearing is mounted on the four-hole plate.

[0009] Through the above design, this solution can more easily support the rotation of multiple eccentric shafts.

[0010] In a further improvement of this utility model, a shaft retaining ring is provided between the multi-segment eccentric shaft and the crankshaft central bearing, and a hole retaining ring is provided between the crankshaft central bearing and the crankshaft inner wall.

[0011] Through the above design, this solution can more easily restrict the axial movement of multi-segment eccentric shafts and crankshaft center bearings.

[0012] In a further improvement of this utility model, a rod-shaft rotation structure is provided at the connection between the crankshaft and the cutter head connecting rod. The rod-shaft rotation structure includes a lower cover plate of the cutter head connecting rod shaft, a cutter head connecting rod shaft, and an upper cover plate of the cutter head connecting rod shaft arranged sequentially from bottom to top. The middle part of the cutter head connecting rod shaft is rotatably connected to the cutter head connecting rod. The upper and lower ends of the cutter head connecting rod shaft are respectively provided with an upper small bearing and a lower small bearing. The upper and lower small bearings of the cutter head connecting rod shaft are respectively connected to the crankshaft.

[0013] Through the above design, this solution makes it easier for the crankshaft to drive the cutter head connecting rod.

[0014] In a further improvement of this utility model, the crankshaft includes a single-hole end and a double-hole end. The single-hole end is connected to the crankshaft center bearing, and the double-hole end is connected to the upper small bearing and the lower small bearing of the cutter head connecting rod shaft.

[0015] Through the above design, this solution can more easily support the movement between multiple eccentric shafts, crankshafts, and cutter head connecting rods.

[0016] In a further improvement of this invention, the cutter head connecting rod is connected to a linear bearing.

[0017] Through the above design, this solution can more easily support the reciprocating linear motion of the cutter head connecting rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This utility model is a knife specifically designed for removing strawberry stems. This application achieves strawberry stem cutting through high-frequency, low-amplitude mechanical vibration, without requiring large cutting force, thus improving the efficiency of strawberry stem removal and promoting the intelligent and automated development of strawberry cultivation. Attached Figure Description

[0020] To more clearly illustrate the background technology or the technical solution of this utility model, the accompanying drawings used in conjunction with the prior art or specific embodiments are briefly introduced below. Obviously, the structures, proportions, sizes, etc., shown in the accompanying drawings are only used to complement the content disclosed in the specification, so as to enable those skilled in the art to understand and read them, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0021] Figure 1 This is an exploded structural diagram of a specific embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the external structure of a specific embodiment of the present utility model.

[0024] The following components are shown in the diagram: 1. Four-hole plate; 2. Aluminum shell; 3. Motor plate; 4. Upper crankshaft bearing; 5. Shaft retaining ring; 6. Hole retaining ring; 7. Crankshaft; 8. Crankshaft center bearing; 9. Multi-section eccentric shaft; 10. Lower crankshaft bearing; 11. Motor; 12. Upper cover plate of cutter head connecting rod shaft; 13. Small bearing on cutter head connecting rod shaft; 14. Cutter head connecting rod shaft; 15. Small bearing on cutter head connecting rod shaft; 16. Lower cover plate of cutter head connecting rod shaft; 17. Cutter head connecting rod; 18. Linear bearing; 19. Tool holder; 20. Tool protector. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0026] Meanwhile, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Changes or adjustments to the relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0027] Furthermore, it should be noted in the description of this specification that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0028] With the rapid development of technology, the planting industry is becoming increasingly intelligent and automated. However, it is currently difficult to automate the removal of strawberry stems. One reason for this is the lack of suitable stem-removing tools that can be installed in the motion execution unit of a robotic arm and have the robotic arm precisely position the strawberry to complete the cutting process.

[0029] Therefore, the design concept of this application is to design a miniature knife for cutting off the stem of a strawberry.

[0030] like Figure 1-3 As shown, this application provides a miniature vibrating knife, including a four-hole plate 1, an aluminum shell 2, a motor plate 3, a blade guard 20, and a motor 11. The aluminum shell 2 is provided with a multi-segment eccentric shaft 9, a crankshaft 7, and a blade head connecting rod 17. The blade guard 20 is provided with a blade clamp 19. The motor 11 is connected to the multi-segment eccentric shaft 9, the multi-segment eccentric shaft 9 is connected to the crankshaft 7, the crankshaft 7 is connected to the blade head connecting rod 17, the blade head connecting rod 17 is connected to the blade clamp 19, and the blade clamp 19 is connected to a blade.

[0031] The motor 11 is connected to a drive shaft, on which a crankshaft lower bearing 10 and a multi-segment eccentric shaft 9 are sequentially sleeved from bottom to top. On the multi-segment eccentric shaft 9, a crankshaft center bearing 8 and a crankshaft upper bearing 4 are sequentially sleeved from bottom to top. The crankshaft center bearing 8 is connected to the crankshaft 7.

[0032] When in use, the multi-segment eccentric shaft 9 rotates full circles, causing the crankshaft 7 to swing back and forth, which in turn causes the blade to vibrate and cut.

[0033] The lower crankshaft bearing 10 is mounted on the motor plate 3, and the upper crankshaft bearing 4 is mounted on the four-hole plate 1 to support the rotation of the multi-section eccentric shaft 9.

[0034] A shaft retaining ring 5 is provided between the multi-segment eccentric shaft 9 and the crankshaft central bearing 8, and a hole retaining ring 6 is provided between the crankshaft central bearing 8 and the inner wall of the crankshaft 7. The shaft retaining ring 5 and the hole retaining ring 6 can more easily restrict the axial movement of the multi-segment eccentric shaft and the crankshaft central bearing.

[0035] The crankshaft 7 is provided with a rod-shaft rotation structure at the connection between it and the cutter head connecting rod 17. The rod-shaft rotation structure includes a lower cover plate 16, a cutter head connecting rod shaft 14, and an upper cover plate 12 arranged sequentially from bottom to top. The middle part of the cutter head connecting rod shaft 14 is rotatably connected to the cutter head connecting rod 17. The upper and lower ends of the cutter head connecting rod shaft 14 are respectively provided with an upper small bearing 13 and a lower small bearing 15. The upper small bearing 13 and the lower small bearing 15 are respectively connected to the crankshaft 7.

[0036] In use, the multi-segment eccentric shaft 9 rotates in full circles, causing the crankshaft 7 to swing back and forth. The crankshaft 7 drives the cutter head connecting rod 17 to perform linear reciprocating motion. The cutter head connecting rod 17 carries the tool holder 19 to perform linear reciprocating motion, and the tool holder 19 is equipped with a blade for cutting.

[0037] The crankshaft 7 includes a single-hole end and a double-hole end. The single-hole end is connected to the crankshaft center bearing 8, and the double-hole end is connected to the small bearing 13 on the cutter head connecting rod shaft and the small bearing 15 on the cutter head connecting rod shaft. This makes it easier to support the movement between the multi-segment eccentric shaft 9, the crankshaft 7, and the cutter head connecting rod 17.

[0038] The cutter head connecting rod 17 is connected to a linear bearing 18; the linear bearing 18 can more easily support the cutter head connecting rod 17 to perform reciprocating linear motion.

[0039] The working principle of this miniature vibrating knife device for removing strawberries can be adapted to different workplaces based on specific design applications, including the following basic working principles:

[0040] The motor 11 drives the multi-segment eccentric shaft 9 to rotate, the multi-segment eccentric shaft 9 drives the crankshaft 7 to swing around the multi-segment eccentric shaft 9, the crankshaft 7 drives the cutter head connecting rod 17 to perform linear reciprocating motion, the cutter head connecting rod 17 carries the blade holder 19 to perform linear reciprocating motion, and the blade holder 19 is equipped with a blade for cutting operations.

[0041] This miniature vibrating knife cuts strawberry stems using high-frequency, low-amplitude mechanical vibration, requiring minimal cutting force. Its main purposes include:

[0042] A miniature vibrating knife is a small vibratory cutting device with a compact design and a vibration amplitude between 0.6 mm and 0.7 mm. It achieves precise cutting through high-frequency, low-amplitude vibration.

[0043] The crankshaft is driven by a small, high-speed motor. The cutting effect is achieved by controlling the vibration mode and frequency. The cutting is fast and the blade is clean, which can improve cutting accuracy, reduce product damage, and simplify operation.

[0044] Optimization of the structure of the small vibratory cutting device increases its service life.

[0045] Miniaturized design and modular assembly reduce manufacturing costs.

[0046] Improve production efficiency through standardized and modular production to increase output and efficiency.

[0047] This miniature vibrating knife for strawberry stem removal, when used in combination with a robotic arm, offers several advantages: increased efficiency in removing strawberry stems through high-precision cutting by controlling vibration parameters; the ability to achieve specific cutting modes, with different vibration patterns controllable to meet diverse cutting needs; simplified equipment and usage, with an external high-speed rotating motor providing additional power input, making it easy to use and lowering the barrier to entry; reduced manufacturing costs due to its miniaturized design and modular assembly; increased production efficiency through standardized and modular production; and extended service life thanks to its optimized structural design, improving fatigue resistance and overall lifespan.

[0048] The development and design of a miniature vibrating knife specifically for removing strawberry stems is necessary for the following reasons:

[0049] 1. Increased efficiency: Vibration cutting can significantly improve the efficiency of cutting operations.

[0050] 2. Easy to operate: The external high-speed rotating motor serves as the power input source, making operation and use simple.

[0051] 3. Applicable to various sizes: Compact size, easy to install with other actuators.

[0052] 4. Reduce losses: Precise cutting can minimize product losses.

[0053] 5. Reduced costs: The miniaturized design reduces material consumption and significantly lightens the overall weight, reducing the inertia of the driving unit and making it more suitable for high-speed motion.

[0054] 6. Enables automation: It is easy to integrate into automated action execution units.

[0055] The defects and reasons for existing technology:

[0056] The cutting precision is not high because existing technology makes it difficult to automate the removal of strawberry stems. One reason is the lack of a suitable stem-removing tool that can be installed in the motion execution unit of a robotic arm and complete the cutting process through the precise positioning of the robotic arm.

[0057] The thermal effect is significant because high-frequency vibration generates a lot of heat, affecting the quality of the cut, and there is a lack of effective heat dissipation design.

[0058] The dynamic design is unreasonable because it cannot properly balance the dynamic performance of the vibration system, resulting in problems such as resonance and instability.

[0059] The size is a bottleneck that is difficult to overcome because existing manufacturing processes cannot overcome the size limitations of vibrating tools. Miniaturization greatly reduces their inertia, enabling them to adapt to high-speed robotic arm movements.

[0060] Limited reliability and lifespan due to the long-term effects of high-frequency vibrations, which accelerate structural fatigue and wear.

[0061] In summary, one of the key technologies for solving the strawberry destemming process is the need for a specialized micro-vibrating knife for strawberry destemming, capable of precise control over vibration mode, frequency, and amplitude to improve cutting accuracy. Furthermore, a unique structural design enhances heat dissipation and reduces thermal effects. The development of such a micro-vibrating knife, applied in actual processing to achieve optimal cutting efficiency and results, involves optimizing the structural design, selecting fatigue-resistant materials to improve vibration fatigue resistance, and introducing a robotic actuator in conjunction with the micro-vibrating knife for real-time monitoring and adjustment of the cutting process. The comprehensive application of multidisciplinary technologies further enhances overall performance, achieving high precision, high efficiency, and high reliability.

[0062] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those skilled in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims

1. A miniature vibrating knife, characterized in that, The device includes a four-hole plate, an aluminum shell, a motor plate, a blade guard, and a motor. The aluminum shell contains multiple eccentric shafts, a crankshaft, and a blade connecting rod. The blade guard contains a blade holder. The motor is connected to the multiple eccentric shafts, which are connected to the crankshaft. The crankshaft is connected to the blade connecting rod, which is connected to the blade holder. The blade holder is connected to the blade.

2. The micro vibrating knife according to claim 1, characterized in that, The motor is connected to a drive shaft, on which a lower crankshaft bearing and a multi-section eccentric shaft are sequentially fitted from bottom to top. On the multi-section eccentric shaft, a central crankshaft bearing and an upper crankshaft bearing are sequentially fitted from bottom to top. The central crankshaft bearing is connected to the crankshaft.

3. The micro vibrating knife according to claim 2, characterized in that, The lower crankshaft bearing is mounted on the motor plate, and the upper crankshaft bearing is mounted on the four-hole plate.

4. The micro vibrating knife according to claim 2, characterized in that, A shaft retaining ring is provided between the multi-section eccentric shaft and the crankshaft center bearing, and a hole retaining ring is provided between the crankshaft center bearing and the crankshaft inner wall.

5. The micro vibrating knife according to claim 2, characterized in that, A rod-shaft rotation structure is provided at the connection between the crankshaft and the cutter head connecting rod. The rod-shaft rotation structure includes a lower cover plate of the cutter head connecting rod shaft, a cutter head connecting rod shaft, and an upper cover plate of the cutter head connecting rod shaft arranged sequentially from bottom to top. The middle part of the cutter head connecting rod shaft is rotatably connected to the cutter head connecting rod. The upper and lower ends of the cutter head connecting rod shaft are respectively provided with an upper small bearing and a lower small bearing. The upper and lower small bearings of the cutter head connecting rod shaft are respectively connected to the crankshaft.

6. The micro vibrating knife according to claim 5, characterized in that, The crankshaft includes a single-hole end and a double-hole end. The single-hole end is connected to the crankshaft center bearing, and the double-hole end is connected to the upper small bearing and the lower small bearing of the cutter head connecting rod shaft.

7. The micro vibrating knife according to claim 5, characterized in that, The cutter head connecting rod is connected to a linear bearing.

Images