Fruit thinning device

Abstract

The utility model relates to a fruit thinning device which comprises an upper knife rest and a lower knife rest which are pivoted to form a scissor-shaped structure, and an upper knife head and a lower knife head which can be oppositely opened and closed and are adjustable in opening and closing distance are correspondingly arranged on the front portions of the upper knife rest and the lower knife rest. Each of the upper tool bit and the lower tool bit comprises a base and a plurality of rotatable fruit thinning rollers which are arranged on the base in parallel at intervals in the front-back direction of the base and are used for thinning fruits, and the base of the upper tool bit is detachably, elastically and telescopically arranged on the upper tool rest or the base of the lower tool bit is detachably, elastically and telescopically arranged on the lower tool rest. According to the fruit thinning device, the opening and closing distance of the upper tool bit and the lower tool bit can be adjusted, the clamping force for fruit grains can be adjusted during fruit thinning, use is convenient, and the fruit thinning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fruit thinning technology, and in particular to a fruit thinning device. Background Technology

[0002] Fruit thinning refers to the manual removal of young fruits that exceed the tree's capacity during the early stages of fruit development, in order to obtain high-quality fruit and prevent alternate bearing. Among existing fruits, grapes often suffer from insufficient growing space due to excessive fruit production, leading to a significant decline in fruit quality. Furthermore, excessive fruit production often consumes a lot of nutrients, placing a heavy burden on the tree and causing premature aging. Therefore, fruit thinning is an essential procedure in grape cultivation. After grape fruit set, thinning is performed when the berries are 3-6mm in size. Existing technologies sometimes use scissors for thinning, which is slow and inefficient. Other methods involve clamping the berries between two rotating thinning rollers, using the rollers' rotation to thin the berries. However, in such structures, the maximum opening and closing distance between the two rollers is fixed, and the clamping force on the berries is also fixed and cannot be adjusted. This can easily damage larger berries, while the clamping force is too weak for smaller berries, making it impractical. For example, Chinese Patent CN118679975A discloses a structure that clamps berries between two thinning rollers for thinning, but the maximum opening and closing distance between these rollers is not adjustable. Utility Model Content

[0003] To address the shortcomings of existing methods, this utility model provides a fruit thinning device.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a fruit thinning device, including an upper knife holder and a lower knife holder pivotally connected to form a scissor-like structure. The front of the upper knife holder and the lower knife holder are respectively provided with an upper knife head and a lower knife head that can be opened and closed relative to each other and whose opening and closing distance is adjustable. The upper knife head and the lower knife head each include a base and a plurality of rotatable fruit thinning rollers for fruit thinning arranged side by side at intervals along the front and rear direction of the base. The base of the upper knife head can be detachably and elastically telescopically mounted on the upper knife holder or the base of the lower knife head can be detachably and elastically telescopically mounted on the lower knife holder.

[0005] Preferably, the base of the upper cutter head is detachably and elastically telescopically mounted on the upper cutter holder. The base of the upper cutter head is detachably mounted on the upper cutter holder by means of bolts and nuts, and a first spring is sleeved on the bolt.

[0006] Preferably, both the upper and lower cutter heads further include a drive motor for driving the fruit thinning roller to rotate and a transmission mechanism connected between the fruit thinning roller and the drive motor.

[0007] Preferably, the transmission mechanism is a gear transmission mechanism, which includes multiple driven gears that are correspondingly arranged on multiple fruit thinning rollers and are mutually connected, and a driving gear that is arranged on a drive motor and is meshed with and connected to the driven gear at the end.

[0008] Preferably, the transmission mechanism is a belt drive mechanism, which includes a driving member mounted on a drive motor and multiple driven members correspondingly mounted on multiple fruit thinning rollers. The multiple driven members are sequentially connected by multiple first belts. The driving member is connected to the driven member located at the front or rear end of the multiple driven members by a second belt. The driving member is provided with a second belt groove, and each driven member is provided with two first belt grooves spaced apart.

[0009] Preferably, the driving member is connected to the driven member at the end away from the second belt among a plurality of driven members via a third belt. The driving member is also provided with a third belt groove that is spaced apart from and parallel to the second belt groove, and each driven member is also provided with a fourth belt groove that is spaced apart from and parallel to the first belt groove.

[0010] Preferably, the front end of the upper or lower tool post is provided with a baffle, and the baffle is provided with a limiting groove for engaging and limiting.

[0011] Preferably, the fruit thinning roller includes a cylindrical column and a fruit thinning portion extending from the side wall of the column.

[0012] Preferably, the fruit-bearing portion is a protrusion that is evenly spaced along the circumference of the column sidewall and forms an inwardly concave arc shape in the axial direction of the column.

[0013] Preferably, the base of the lower blade is provided with a discharge hole for discharging fruit particles.

[0014] The beneficial effects of this utility model are as follows: the utility model uses a detachable and elastically configured upper or lower blade head, which can buffer the force of the fruit grains clamped between the two blade heads when the two blade heads are closed, avoiding the problem of damage to the fruit grains due to excessive clamping force and failure to thin the fruit due to insufficient clamping force. Moreover, the detachable connection of the blade heads can be used to adjust the maximum opening and closing distance between the two blade heads, so as to adjust the use according to the size of different fruit grains and meet different usage needs. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the bottom surface of the cutter head in an embodiment of this utility model;

[0017] Figure 3This is a cross-sectional schematic diagram of the connection structure of the fruit thinning roller, bearing and driven member according to an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the baffle in an embodiment of this utility model;

[0019] Figure 5 This is a top view of the cutter head in an embodiment of the present invention;

[0020] Component names and serial numbers in the diagram: 1-Upper knife holder 2-Lower knife holder 3-Base 30-Discharge hole 4-Fruit thinning roller 40-Column 41-Fruit thinning part 42-Bearing 5-Bolt 50-Nut 6-Driving component 60-Second belt groove 61-Second belt 62-Third belt 63-Third belt groove 7-Driven component 70-First belt groove 71-First belt 72-Fourth belt groove 8-Baffle 80-Limiting groove 9-Drive motor Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments, providing a clear and complete description. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments may be further adjusted according to the specific conditions of the manufacturer. Implementation conditions not specified are generally those used in conventional experiments. Furthermore, directional terms mentioned in the present invention, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying illustrations. The use of directional terms is for better and clearer explanation and understanding of the present invention, and is not intended to indicate or imply any necessary orientation of the present invention. Therefore, they should not be construed as limitations on the present invention.

[0022] Examples of embodiments of this utility model Figures 1 to 5As shown, a fruit thinning device includes an upper blade holder 1 and a lower blade holder 2 pivotally connected to form a scissor-like structure. The upper blade holder 1 and the lower blade holder 2 are pivotally connected at the middle. The pivotal structure consists of pivot holes in the middle of both the upper blade holder 1 and the lower blade holder 2, which are then pivotally connected by a pivot shaft installed in the pivot holes. The pivot shaft can be implemented using rivets. The upper blade holder 1 and the lower blade holder 2 can open or close relative to each other through the pivot connection, thus driving the components mounted on them to move synchronously. The front of the upper blade holder 1 and the lower blade holder 2 are respectively provided with upper and lower blade heads that can open and close relative to each other with an adjustable opening and closing distance. That is, the upper blade head is located at the front of the upper blade holder 1, and the lower blade head is located at the front of the lower blade holder 2, and the upper and lower blade heads are arranged opposite to each other. The opening and closing of the upper and lower blade holders 1 and 2 causes the upper and lower blade heads to open and close accordingly, thus forming a clamping or separating clamping state. When the upper and lower blade heads are closed, the fruit to be thinned is clamped between the two blade heads for thinning. After thinning, the two blade heads open to remove the thinned fruit. At this time, the tails of the upper blade holder 1 and the lower blade holder 2 constitute the handle of the fruit thinning device. For easy gripping, a through hole for finger gripping is provided at the tail of the upper blade holder 1. At the same time, a second telescopic spring can be provided at the tail of the upper blade holder 1 and the lower blade holder 2, with corresponding ends connected to the upper and lower blade holders. Both the upper and lower blade heads include a base 3, and multiple rotatable fruit thinning tools arranged side by side along the front-back direction of the base 3. The fruit roller 4, that is, the upper cutter head, includes a base 3, which can be called the upper base. Multiple rotatable fruit thinning rollers 4, which can be called upper fruit thinning rollers, are arranged side-by-side at intervals along the front-back direction on the bottom surface of the upper base. The lower cutter head also includes a base 3, which can be called the lower base. Multiple rotatable fruit thinning rollers 4, which can be called lower fruit thinning rollers, are arranged side-by-side at intervals along the front-back direction on the top surface of the lower base. The upper and lower fruit thinning rollers have the same structural shape. The upper fruit thinning roller rotates clockwise, and the lower fruit thinning roller rotates counterclockwise. When the upper and lower cutters are closed, the rotation of the upper and lower fruit thinning rollers thins the fruit held between the upper and lower cutters. The base 3 of the upper cutter head is detachable and elastically telescopically mounted on the upper cutter holder 1. The base 3 of the lower blade head is detachably and elastically telescopically mounted on the lower blade holder 2. When the upper base is detachably and elastically telescopically mounted on the upper blade holder 1, the lower base is fixed on the lower blade holder 2. Similarly, when the lower base is detachably and elastically telescopically mounted on the lower blade holder 2, the upper base is fixed on the upper blade holder 1. The detachability of the base 3 and the blade holder allows for adjustment. The installation position of the base 3 on the blade holder can be adjusted according to needs, thereby adjusting the maximum opening and closing distance between the two blade heads to meet different usage requirements. The elastic telescopic setting of the base 3 can buffer the force of the fruit held between the two blade heads when the blade heads clamp the fruit to be thinned, avoiding damage to the fruit due to excessive clamping force and failure to thin the fruit due to insufficient clamping force.

[0023] Further improvements, such as Figure 1 As shown, the base 3 of the upper cutter head is detachably and elastically telescopically mounted on the upper cutter holder 1. The base 3 of the upper cutter head is detachably mounted on the upper cutter holder 1 by the cooperation of bolts 5 and nuts 50. A first spring (not shown in the figure) is sleeved on the bolt 5. The detachable and elastically telescopic mounting of the base 3 of the upper cutter head facilitates adjustment during use. At this time, mounting through holes are provided at corresponding positions on the base 3 of the upper cutter head and the upper cutter holder 1. The mounting through hole on the base 3 of the upper cutter head can be called the first mounting hole, and the mounting through hole on the upper cutter holder 1 can be called the second mounting hole. Then, a bolt 5 is used to pass through the first mounting hole and the second mounting hole sequentially from the side of the upper cutter head opposite the lower cutter head. A nut 50 is installed on the bolt 5 at the end away from the upper cutter head. At this time, the diameter of the second mounting hole is larger than that of the first mounting hole, and a hole wall stop extends radially on the hole wall of the second mounting hole. The first spring is sleeved on the bolt 5. One end of the first spring is connected to the hole wall stop, and the other end is connected to the position around the first mounting hole on the upper cutter head. This makes it easy to install the base 3 of the upper cutter head on the upper tool holder 1. A wing nut 50 is preferred to facilitate the rotation of the nut 50 on the bolt 5. If the bolt 5, nut 50 and the first spring are provided at both the front and rear of the upper tool holder 1, the stability of the connection structure between the two can be improved.

[0024] Further improvements, such as Figure 1As shown, both the upper and lower cutter heads include a drive motor 9 for driving the fruit thinning roller 4 to rotate, and a transmission mechanism connecting the fruit thinning roller 4 and the drive motor 9. The drive motor 9 drives the rotation of the fruit thinning roller 4. A power interface is provided on the upper cutter holder 1 or the lower cutter holder 2 to connect to an external power source to provide power to the drive motor 9, or a battery is provided on the upper cutter holder 1 or the lower cutter holder 2 to provide power to the drive motor 9. The configuration can be adjusted according to different usage requirements. The transmission mechanism transmits the rotational power of the drive motor 9 to multiple fruit thinning rollers 4, enabling the multiple fruit thinning rollers 4 to rotate and perform fruit thinning. The transmission mechanism is either a belt drive mechanism or a gear drive mechanism, that is, a mechanism that transmits power through a belt or gears. At this time, the gear transmission mechanism includes multiple driven gears correspondingly arranged on multiple fruit thinning rollers 4 and interconnected with each other, and a driving gear arranged on the drive motor 9 and meshing with the driven gears at the front or rear ends. Specifically, a first groove is provided on the base 3, and multiple fruit thinning rollers 4 are arranged in the first groove along the front-to-back direction. Both ends of the fruit thinning rollers 4 are rotatably mounted on the groove wall of the first groove via bearings 42. Simultaneously, a portion of each fruit thinning roller 4 protrudes radially outside the first groove. Each fruit thinning roller 4 is provided with a driven gear, which is located on any side of the fruit thinning roller 4. The driven gears on multiple fruit thinning rollers 4 are all located on the same side. The driven gears mesh sequentially from back to front to form a row of meshing driven gears. The driving gear is connected to the drive motor 9. If the drive motor 9 and the driving gear are installed in the rear side of the first groove in a way that is arranged side by side with multiple fruit thinning rollers 4, and the driving gear is installed on the rear side of the row of driven gears, the driving gear meshes with the driven gear at the last side, thus realizing the transmission drive of the drive motor 9 to multiple fruit thinning rollers 4. At this time, a partition can also be set in the first groove to divide the first groove into left and right parts. Then, the fruit thinning roller is set in the left part, and the right end of the fruit thinning roller passes through the partition and extends into the right part. The driven gear and the driving gear are set in the right part.

[0025] like Figure 1 and Figure 3 , Figure 5As shown, the belt drive mechanism includes a driving component 6 mounted on a drive motor 9 and multiple driven components 7 correspondingly mounted on multiple thinning rollers 4. The multiple driven components 7 are sequentially connected in the front-to-back direction via multiple first belts 71. The driving component 6 rotates under the drive of the drive motor 9. The driving component 6 is connected to the driven component 7 located at the front or rear end via a second belt 61. During the transmission process, the belt gives the thinning rollers 4 a certain degree of elasticity. Through the belt transmission, during the thinning process, when the blades encounter large or concentrated fruit, the operation is staggered, reducing damage to the fruit and applying more force to the main branches bearing fruit. The force generated by the action of the belt creates a buffer to prevent the main branches bearing fruit from breaking. Preferably, the driving member 6 is connected to the driven member 7 at the tail end via a second belt 61. That is, each fruit thinning roller 4 is equipped with a driven member 7. In this case, the driven member 7, fruit thinning roller 4 and drive motor 9 are set in the manner of a gear transmission mechanism with a driven gear, fruit thinning roller 4 and drive motor 9. Both the driving member 6 and the driven member 7 are cylindrical structures. The driven member 7 is fitted onto the fruit thinning roller 4. The multiple driven members 6 on multiple fruit thinning rollers 4 form a row in the front-to-back direction. The first driven member and the second driven member immediately following it are connected by a first belt 71. The second driven member and the immediately following third driven member are connected by another first belt 71, and so on, to achieve the transmission connection between multiple driven members 7. The driving member 6 is connected to the output shaft of the drive motor 9. Driven by the rotation of the drive motor 9, the driving member 6 is connected to the last driven member 7 among the multiple driven members 7 via the second belt 61. The first belt 71 and the second belt 61 are the same belt, such as a rubber ring with a circular cross-section. Preferably, the driving member 6 and the driven members 7 are the same components. The driving member 6 is provided with a second belt groove 60, and each driven member 7 has two grooves spaced apart. Two first belt grooves 70 are spaced apart on the outer side wall of the driven member 7 along the axial direction of the driven member 7, and can be referred to as first belt groove a and first belt groove b. When the driving member 6 has one second belt groove 60, it is set on the outer side wall of the driving member 6 at a position corresponding to the first belt groove a or first belt groove b. For ease of use, the driving member 6 and the driven member 7 are set with the same structure, so the driving member 6 also has two second belt grooves 60, which can be referred to as second belt groove a and second belt groove b. First belt groove a and second belt groove a correspond to each other, and first belt groove b and second belt groove b correspond to each other.In practical applications, the second belt 61 is fitted onto the second belt groove a of the driving member 6 and the first belt groove a of the last driven member 7 to achieve the transmission connection between the driving member 6 and the driven member 7. Among multiple driven members 7, one first belt 71 is fitted onto the first belt groove b of the first driven member and the first belt groove b of the second driven member to achieve the transmission connection between the first and second driven members, and another first belt 71 is fitted onto the first belt groove a of the second driven member and the first belt groove a of the third driven member to achieve the transmission connection between the first and second driven members. The transmission connection between the second and third driven members, and so on, realizes the transmission connection between multiple driven members 7. In this structure, through the sequential transmission of the second belt 61 and multiple first belts 71, the force on the driven member 7 at the end away from the drive motor 9 becomes smaller than the force on the driven member 7 at the end adjacent to the drive motor 9. Therefore, the rotation of the fruit thinning roller 4 at the end away from the drive motor 9 becomes slower compared to the fruit thinning roller 4 at the end adjacent to the drive motor 9, which is not conducive to fruit thinning. At this time, in order for the multiple fruit thinning rollers 4 to rotate... To ensure speed consistency, the driving element 6 is connected via a third belt 62 to the driven element 7 located furthest from the second belt 61. In other words, when the drive motor 9 is positioned at the tail end of the driven elements 7, the driving element 6 is connected via the second belt 61 to the tail end of the driven elements 7. Since the second belt 61 is also at the tail end, the third belt 62 connects the driving element 6 to the front end of the driven elements 7. This allows the driving element 6 to apply speeds simultaneously. The force is applied to the driven members 7 at the front and rear ends to maintain the consistency of the rotation of the fruit thinning rollers 4 at both ends. The transmission from the driven members 7 at both ends to the driven member 7 in the middle can improve the consistency of the rotation speed of the multiple fruit thinning rollers 7, which facilitates fruit thinning. The driving member 6 is also provided with a third belt groove 63 that is spaced apart from the second belt groove 60. Each driven member 7 is also provided with a fourth belt groove 72 that is spaced apart from the first belt groove 70. The third belt 62 is fitted onto the third belt groove 63 and the fourth belt groove 72 on the frontmost driven member 7. In practical applications, it is preferable to set the driving member 6 and the driven member 7 as cylindrical columns with the same structure. The output shafts of the fruit thinning roller 4 and the drive motor 9 are sleeved inside the cylindrical column. Then, three belt grooves are arranged axially at intervals on the side wall of the column. When the column is used as the driving member 6, the three belt grooves on it are called the second belt groove 60 and the third belt groove 63 according to the belt installed. The three belt grooves on the driven member 7 are called the first belt groove 70 and the fourth belt groove 72 respectively. Figure 1 and Figure 5As shown, the drive motor 9 is located at the tail end of multiple driven members 7. The leftmost belt groove on the driving member 6 is connected to the tailmost driven member 7 via a second belt 61, and the rightmost belt groove is connected to the foremost driven member 7 via a third belt 62. At this time, the leftmost belt groove on the driving member 6 is called the second belt groove 60, and the rightmost belt groove is called the third belt groove 63. Meanwhile, the two belt grooves on the left side of the driven member 7 are called the first belt groove 70, and the rightmost belt groove is called the fourth belt groove 72.

[0026] Further improvements, such as Figure 1 and Figure 4 As shown, a baffle 8 is provided at the front end of the upper blade holder 1 or the lower blade holder 2. When the baffle 8 is set on the upper blade holder, a portion of the baffle 8 protrudes from the bottom of the upper blade holder 1 and extends towards the lower blade holder 2. Similarly, when the baffle 8 is set on the lower blade holder 2, a portion of the baffle 8 protrudes from the top of the lower blade holder 2 and extends towards the upper blade holder 1. After the upper and lower blade heads are closed, the baffle 8 is located at the front end of the upper blade holder 1 and the lower blade holder 2. A limiting groove 80 for locking and limiting is provided on the baffle 8. The limiting groove 80 is a U-shaped locking groove provided on the baffle 8. Through the limiting groove 80, the branches with grape berries can be locked in the limiting groove 80 during fruit thinning, fixing and limiting the grape branches, thus avoiding the branches from shaking between the upper and lower blade heads during fruit thinning and improving fruit thinning efficiency.

[0027] Further improvements, such as Figure 3 As shown, the thinning roller 4 includes a cylindrical column 40 and a thinning section 41 extending from the side wall of the column 40. The thinning section 41 can be a protrusion extending from the column. The column 40 is rotatably mounted on the base 3 via a bearing 42. The driven member 7 is sleeved on the column 40. Under the rotation of the column 40, the thinning section 41 removes the fruit particles. At this time, the thinning section 41 is a protrusion that is evenly spaced along the circumference of the column 40 on the side wall of the column 40 and forms an inwardly concave arc shape in the axial direction of the column 40. If four protrusions are provided, the four protrusions divide the circumference of the column 40 into four equal parts to form a cross-shaped structure. The inwardly concave arc structure allows for a certain fruit particle accommodating space when the upper and lower cutters are closed. When the thinning roller 4 rotates, it will not remove all the fruit particles, thus enabling effective fruit thinning.

[0028] Further improvements, such as Figure 2 As shown, the base 3 of the lower cutter head is provided with a discharge hole 30 for discharging fruit particles. The discharge hole 30 is a through hole that passes through the base 3 of the lower cutter head. The discharge hole 30 can be set as a through hole with a larger diameter or multiple through holes to serve as the discharge hole 30, depending on different usage requirements. The setting of the discharge hole 30 allows the fruit particles that fall off during fruit thinning to be discharged from the discharge hole 30 and will not get stuck between the upper and lower cutter heads, which facilitates fruit thinning.

[0029] Although the present invention has been described in detail above with general description and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A fruit thinning device, characterized in that, The device includes an upper blade holder and a lower blade holder that are pivotally connected to form a scissor-like structure. The front of the upper blade holder and the lower blade holder are respectively provided with an upper blade head and a lower blade head that can be opened and closed relative to each other and whose opening and closing distance is adjustable. Each upper blade head and the lower blade head includes a base and a plurality of rotatable fruit thinning rollers arranged side by side at intervals along the front-back direction of the base. The base of the upper blade head can be detachably and elastically telescopically mounted on the upper blade holder, or the base of the lower blade head can be detachably and elastically telescopically mounted on the lower blade holder.

2. The fruit thinning device according to claim 1, characterized in that, The base of the upper cutter head is detachably and elastically telescopically mounted on the upper cutter holder. The base of the upper cutter head can be detachably mounted on the upper cutter holder by means of bolts and nuts, and a first spring is sleeved on the bolt.

3. The fruit thinning device according to claim 1 or 2, characterized in that, Both the upper and lower cutter heads include a drive motor for driving the fruit thinning roller to rotate and a transmission mechanism connected between the fruit thinning roller and the drive motor.

4. The fruit thinning device according to claim 3, characterized in that, The transmission mechanism is a gear transmission mechanism, which includes multiple driven gears that are correspondingly arranged on multiple fruit thinning rollers and are mutually connected, and a driving gear that is arranged on a drive motor and is meshed with and connected to the driven gear at the end.

5. The fruit thinning device according to claim 3, characterized in that, The transmission mechanism is a belt drive mechanism, which includes a driving component mounted on a drive motor and multiple driven components correspondingly mounted on multiple fruit thinning rollers. The multiple driven components are sequentially connected by multiple first belts. The driving component is connected to the driven component located at the front or rear end of the multiple driven components by a second belt. The driving component is provided with a second belt groove, and each driven component is provided with two first belt grooves spaced apart.

6. The fruit thinning device according to claim 5, characterized in that, The driving member is connected to the driven member at the end furthest from the second belt among a plurality of driven members via a third belt. The driving member is also provided with a third belt groove that is spaced apart from and parallel to the second belt groove. Each driven member is also provided with a fourth belt groove that is spaced apart from and parallel to the first belt groove.

7. The fruit thinning device according to claim 1, characterized in that, The front end of the upper or lower tool post is provided with a baffle, and the baffle is provided with a limiting groove for locking and limiting.

8. The fruit thinning device according to claim 1, characterized in that, The fruit thinning roller includes a cylindrical column and a fruit thinning section extending from the side wall of the column.

9. The fruit thinning device according to claim 8, characterized in that, The fruit-bearing portion is a protrusion that is evenly spaced along the circumference of the column sidewall and forms an inwardly concave arc shape in the axial direction of the column.

10. The fruit thinning device according to claim 1, characterized in that, The base of the lower cutter head is provided with a discharge hole for discharging fruit particles.

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