Fruit screening and racking machine

Abstract

The utility model discloses a fruit screening and sub-packaging machine which comprises a screening and sub-packaging part and a material storing and conveying part, the material storing and conveying part is arranged on one side of the screening and sub-packaging part and comprises a conveying assembly and a material storing assembly, the material storing assembly is arranged on the conveying assembly, and the material storing assembly comprises a material storing hopper, an inserting baffle and a pair of driving air cylinders. The storage hopper is connected with the conveying assembly through a pair of connecting arms, an inserting-connecting notch is formed in one side of the lower end of the storage hopper, one end of the inserting-connecting baffle is inserted into the inserting-connecting notch and is in sliding connection with the inserting-connecting notch, one end of the driving air cylinder is arranged on the connecting arms, and the other end of the driving air cylinder is connected with the other end of the inserting-connecting baffle. The problems that due to the fact that the number of the fruits entering the screening and subpackaging machine cannot be controlled, when the number of the fruits entering the screening and subpackaging machine is large, the fruits can be stacked on multiple layers, the fruits located on the upper layer cannot be screened, and the screening accuracy is not high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fruit screening, in particular to a fruit screening and packaging machine. Background Art

[0002] With the continuous development of the economy, my country's fruit industry has also grown stronger and stronger, becoming a major fruit production country. The fruit industry is mainly concentrated in southern my country and has become a pillar industry of the rural economy in the main production areas in southern my country. It has made positive contributions to promoting farmers' income, expanding employment for urban and rural residents, and improving the ecological environment. Fruits sold on the market are generally graded and sold according to the size of the fruit diameter, such as large fruit, medium fruit and small fruit. The larger the fruit diameter, the more expensive it is. Therefore, after the fruit is picked, it is necessary to classify and package the fruit according to size. At present, in order to speed up the screening and packaging speed, fruit screening and packaging machines are generally used.

[0003] The fruit screening and packaging machine in the prior art is not provided with a material storage structure. When in use, workers usually pour the fruits onto the screening and packaging machine, and then the screening and packaging machine performs screening and packaging. During this process, workers need to repeatedly pour the fruits onto the screening and packaging machine, and the amount of fruits entering the screening and packaging machine cannot be controlled. This results in the fruit screening and packaging machine in the prior art being unable to control the amount of fruits entering the screening and packaging machine when in use. When the amount of fruits entering the screening and packaging machine is large, the fruits will be piled up in multiple layers, resulting in the inability to screen the fruits on the upper layer, and the problem of low screening accuracy.

[0004] In the utility model with application number: 201720009787.7 and publication number: CN206454877U, an automatic fruit screening machine is disclosed, which includes structures such as a base, a screen rod, an adjustment table and a hopper. Although the hopper can solve the problem that workers repeatedly pour fruits into the screening and packaging machine during the screening process, the problem still exists that when it is used, the number of fruits entering the screening and packaging machine cannot be controlled. When the number of fruits entering the screening and packaging machine is large, the fruits will be piled up in multiple layers, resulting in the inability to screen the fruits on the upper layer, resulting in a low screening accuracy. Utility Model Content

[0005] Based on this, in response to the above problems, the utility model proposes a fruit screening and packaging machine, which solves the problem that when the current fruit screening and packaging machine is in use, the number of fruits entering the screening and packaging machine cannot be controlled. When the number of fruits entering the screening and packaging machine is large, the fruits will be piled up in multiple layers, resulting in the fruits on the upper layer cannot be screened, resulting in low screening accuracy.

[0006] The technical solution of the utility model is:

[0007] A fruit screening and packaging machine comprises a screening and packaging part and a material storage and conveying part, wherein the material storage and conveying part is arranged on one side of the screening and packaging part and is arranged in coordination with the screening and packaging part;

[0008] The material storage and conveying part includes a conveying component and a material storage component, wherein the material storage component is arranged on the conveying component and is arranged in cooperation with the conveying component;

[0009] The material storage component includes a material storage funnel, a plug-in baffle and a pair of driving cylinders. The material storage funnel is connected to the conveying component through a pair of connecting arms. A plug-in slot is provided on one side of the lower end of the material storage funnel. One end of the plug-in baffle is inserted into the plug-in slot and is slidably connected to the plug-in slot to close the material storage funnel. One end of the driving cylinder is arranged on the connecting arm, and the other end is connected to the other end of the plug-in baffle to drive the plug-in baffle.

[0010] Preferably, the conveying assembly includes a conveying frame, a pair of conveying drive shafts, a conveying belt and a conveying motor. The pair of conveying drive shafts are cooperatively arranged on the conveying frame and are rotatably connected to the conveying frame. The conveying belt is sleeved on the conveying drive shaft and is cooperatively arranged with the conveying drive shaft. The conveying drive shaft is used to drive the conveying belt. The conveying motor is arranged on one side of the conveying frame, and the output shaft of the conveying motor passes through the conveying frame and is connected to one of the conveying drive shafts for driving the conveying drive shaft to rotate. The output shaft of the conveying motor is rotatably connected to the conveying frame.

[0011] Preferably, the storage hopper is arranged on one side above the conveyor frame and is fixedly connected to the conveyor frame through a pair of connecting arms. A first baffle is provided on one side of the conveyor frame close to the storage hopper, and the first baffle is used to prevent fruit from falling from the conveyor belt.

[0012] Preferably, a conveying mounting plate for mounting a conveying motor is provided on the conveying frame, the conveying mounting plate is fixedly connected to the conveying frame, and the conveying motor is fixedly mounted on the conveying mounting plate.

[0013] Preferably, the screening and packaging part comprises a screening component and a packaging component, the packaging component is cooperatively arranged on the screening component, the screening component is used for screening fruits, and the packaging component is used for packaging fruits.

[0014] Preferably, the screening component includes a screening frame, a screening limit frame, a pair of proximal screening drive shafts and a pair of distal screening drive shafts, the screening limit frame is fixedly arranged on the top of the screening frame, the pair of proximal screening drive shafts are cooperatedly arranged on a side of the screening frame close to the material storage and conveying portion and are rotatably connected to the screening frame, the pair of distal screening drive shafts are cooperatedly arranged on a side of the screening frame away from the material storage and conveying portion and are rotatably connected to the screening frame, a plurality of proximal screening drive wheels are provided on the proximal screening drive shaft, and a plurality of distal screening drive wheels are provided on the distal screening drive shaft, the spacing between every two proximal screening drive wheels on the proximal screening drive shaft is smaller than the spacing between every two distal screening drive wheels on the distal screening drive shaft, the proximal screening drive wheels on the two proximal screening drive shafts and the distal screening drive wheels on the two distal screening drive shafts are connected and transmitted through a screening belt, and the spacing between every two screening belts gradually increases from the side close to the material storage and conveying portion to the side away from the material storage and conveying portion.

[0015] Preferably, the proximal screening drive wheel is slidably connected to the proximal screening drive shaft and can be fixed by friction, and the distal screening drive wheel is slidably connected to the distal screening drive shaft and can be fixed by friction.

[0016] Preferably, a driving motor is provided at the bottom of one side of the screening frame close to the material storage and conveying portion, and the driving motor is cooperated with one of the proximal screening drive shafts to drive the proximal screening drive shaft.

[0017] Preferably, a driving wheel is fixedly provided on the output shaft of the driving motor, a driven wheel matched with the driving wheel is provided on the proximal screening transmission shaft, and the driving wheel and the driven wheel are driven by a transmission belt.

[0018] Preferably, the packing assembly includes a packing plate and a plurality of packing boxes. The packing plate is tiltedly arranged on the screening frame, and one end of the packing plate is cooperated with the screening belt to catch the fruits screened between every two screening belts. The packing plate is provided with a plurality of packing tracks. The packing boxes are cooperated with the packing tracks to catch the fruits falling out of the packing tracks.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model realizes the control of the feeding speed of the fruit storage and screening and packaging parts by arranging a material storage and conveying part. When in use, the plug-in baffle is first driven by the driving cylinder to be inserted into the plug-in groove to close the bottom of the material storage funnel, and then the fruit is poured into the material storage funnel for temporary storage. Then, the plug-in baffle is driven by the driving cylinder to slide out a certain distance, so that the fruit can enter the conveying component from the bottom of the material storage funnel and then be transported to the screening and packaging part for screening and packaging. The falling amount of the fruit can be controlled according to the distance that the plug-in baffle is driven by the driving cylinder to slide out, so as to control the amount of fruit entering the screening and packaging part, and solves the problem that when the current fruit screening and packaging machine is in use, the amount of fruit entering the screening and packaging machine cannot be controlled. When the amount of fruit entering the screening and packaging machine is large, the fruit will be piled up in multiple layers, thereby causing the fruit located on the upper layer to be unable to be screened and the screening accuracy rate is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a fruit screening and packaging machine described in an embodiment of the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the material storage and conveying part described in the embodiment of the utility model. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the structure of the material storage and conveying part described in the embodiment of the utility model. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the structure of a fruit screening and packaging machine described in an embodiment of the utility model. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the structure of a fruit screening and packaging machine described in an embodiment of the utility model. Figure 3 ;

[0026] Figure 6 It is a schematic diagram of the installation structure of the drive motor described in the embodiment of the utility model;

[0027] Description of reference numerals:

[0028] 10-screening and sub-packaging part, 11-screening assembly, 12-sub-packaging assembly, 100-screening frame, 101-screening limit frame, 102-near-end screening drive shaft, 103-far-end screening drive shaft, 104-near-end screening drive wheel, 105-far-end screening drive wheel, 106-screening belt, 107-drive motor, 108-drive belt, 109-sub-packaging plate, 110-sub-packaging box, 111-sub-packaging rail Road, 112-driving wheel, 113-driven wheel, 20-storage conveying part, 21-conveying assembly, 22-storage assembly, 200-storage hopper, 201-plug-in baffle, 202-driving cylinder, 203-connecting arm, 204-plug-in slot, 205-conveying frame, 206-conveying drive shaft, 207-conveying belt, 208-conveying motor, 209-first baffle, 210-conveying mounting plate. DETAILED DESCRIPTION

[0029] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0030] Example:

[0031] like Figure 1 to Figure 2 As shown, in order to solve the above problems, this embodiment discloses a fruit screening and packaging machine, comprising a screening and packaging part 10 and a storage and conveying part 20, wherein the storage and conveying part 20 is arranged on one side of the screening and packaging part 10 and is arranged in coordination with the screening and packaging part 10;

[0032] The material storage and conveying unit 20 includes a conveying component 21 and a material storage component 22. The material storage component 22 is disposed on the conveying component 21 and is arranged in cooperation with the conveying component 21.

[0033] The material storage component 22 includes a material storage funnel 200, a plug-in baffle 201 and a pair of driving cylinders 202. The material storage funnel 200 is connected to the conveying component 21 through a pair of connecting arms 203. A plug-in slot 204 is provided on one side of the lower end of the material storage funnel 200. One end of the plug-in baffle 201 is inserted into the plug-in slot 204 and is slidably connected to the plug-in slot 204 to close the material storage funnel 200. One end of the driving cylinder 202 is set on the connecting arm 203, and the other end is connected to the other end of the plug-in baffle 201 to drive the plug-in baffle 201.

[0034] The utility model realizes the control of the feeding speed of the fruit storage and screening and packaging part 10 by arranging the storage and conveying part 20. When in use, the plug-in baffle 201 is first driven by the driving cylinder 202 to be inserted into the plug-in slot 204 to close the bottom of the storage hopper 200, and then the fruit is poured into the storage hopper 200 for temporary storage. Then, the plug-in baffle 201 is driven by the driving cylinder 202 to slide out a certain distance, so that the fruit can enter the conveying component 21 from the bottom of the storage hopper 200 and then be transported to the screening and packaging part 10 for screening and packaging. The falling amount of the fruit can be controlled according to the distance that the plug-in baffle 201 is driven by the driving cylinder 202 to slide out, so as to control the amount of the fruit entering the screening and packaging part 10, thereby solving the problem that when the current fruit screening and packaging machine is in use, the amount of the fruit entering the screening and packaging machine cannot be controlled. When the amount of the fruit entering the screening and packaging machine is large, the fruit will be piled up in multiple layers, thereby causing the fruit located on the upper layer to be unable to be screened and the screening accuracy rate is low.

[0035] The storage hopper 200 has a discharge port at the bottom, and the plug-in slot 204 is arranged in cooperation with the discharge port. After the plug-in baffle 201 is inserted into the plug-in slot 204, the discharge port at the bottom of the storage hopper 200 can be closed, thereby achieving the effect of closing the storage hopper 200.

[0036] like Figure 3 As shown, in order to facilitate the transportation of fruits dropped from the storage funnel 200 to the screening and packaging part 10, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the conveying assembly 21 includes a conveying frame 205, a pair of conveying drive shafts 206, a conveying belt 207 and a conveying motor 208. The pair of conveying drive shafts 206 are cooperatively arranged on the conveying frame 205 and are rotatably connected to the conveying frame 205. The conveying belt 207 is sleeved on the conveying drive shaft 206 and is cooperatively arranged with the conveying drive shaft 206. The conveying drive shaft 206 is used to drive the conveying belt 207. The conveying motor 208 is arranged on one side of the conveying frame 205, and the output shaft of the conveying motor 208 passes through the conveying frame 205 and is connected to one of the conveying drive shafts 206 for driving the conveying drive shaft 206 to rotate. The output shaft of the conveying motor 208 is rotatably connected to the conveying frame 205.

[0037] When in use, the conveying drive shaft 206 is driven by the conveying motor 208 , thereby driving the conveying belt 207 to move, so that the fruits on the conveying belt 207 can move along the conveying belt 207 to the screening and packaging part 10 .

[0038] In order to prevent the fruit from falling from the conveyor belt 207 when it falls from the storage hopper 200 onto the conveyor belt 207, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the storage hopper 200 is arranged on one side above the conveyor frame 205 and is fixedly connected to the conveyor frame 205 through a pair of connecting arms 203. A first baffle 209 is provided on the side of the conveyor frame 205 close to the storage hopper 200. The first baffle 209 is used to prevent the fruit from falling from the conveyor belt 207.

[0039] When in use, the first baffle 209 can effectively prevent the fruit from falling from the conveyor belt 207 when the fruit falls from the storage hopper 200 onto the conveyor belt 207 .

[0040] Preferably, a conveyor mounting plate 210 for mounting a conveyor motor 208 is provided on the conveyor frame 205 , the conveyor mounting plate 210 is fixedly connected to the conveyor frame 205 , and the conveyor motor 208 is fixedly mounted on the conveyor mounting plate 210 .

[0041] In order to facilitate the screening and packaging of fruits of different sizes, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the screening and packaging part 10 includes a screening component 11 and a packaging component 12, and the packaging component 12 is arranged on the screening component 11. The screening component 11 is used to screen fruits, and the packaging component 12 is used to package fruits.

[0042] When in use, the screening component 11 is used to screen fruits of different sizes, and the packaging component 12 is used to package fruits of different sizes.

[0043] like Figures 4 to 5As shown, in order to facilitate the screening and packaging of fruits of different sizes, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the screening component 11 includes a screening frame 100, a screening limit frame 101, a pair of proximal screening drive shafts 102 and a pair of distal screening drive shafts 103. The screening limit frame 101 is fixedly arranged on the top of the screening frame 100, the pair of proximal screening drive shafts 102 are cooperatively arranged on a side of the screening frame 100 close to the storage and conveying part 20, and are rotatably connected to the screening frame 100, and the pair of distal screening drive shafts 103 are cooperatively arranged on a side of the screening frame 100 away from the storage and conveying part 20, and are rotatably connected to the screening frame 100. 00 is rotatably connected, a plurality of proximal screening drive wheels 104 are provided on the proximal screening drive shaft 102, and a plurality of distal screening drive wheels 105 are provided on the distal screening drive shaft 103, the spacing between every two proximal screening drive wheels 104 on the proximal screening drive shaft 102 is smaller than the spacing between every two distal screening drive wheels 105 on the distal screening drive shaft 103, the proximal screening drive wheels 104 on the two proximal screening drive shafts 102 and the distal screening drive wheels 105 on the two distal screening drive shafts 103 are connected for transmission via a screening belt 106, and the spacing between every two screening belts 106 gradually increases from the side close to the storage and conveying part 20 to the side away from the storage and conveying part 20.

[0044] like Figure 6 As shown, preferably, a driving motor 107 is provided at the bottom of one side of the screening frame 100 close to the material storage and conveying part 20, and the driving motor 107 is arranged in cooperation with one of the proximal screening drive shafts 102 for driving the proximal screening drive shaft 102 for transmission.

[0045] The distance between every two proximal screening drive wheels 104 on the proximal screening drive shaft 102 is set to be smaller than the distance between every two distal screening drive wheels 105 on the distal screening drive shaft 103, so that the distance between every two screening belts 106 gradually increases from the side close to the storage and conveying part 20 to the side away from the storage and conveying part 20, thereby making the interval between every two screening belts 106 gradually increase, and smaller fruits will fall from the interval first, and larger fruits will fall later.

[0046] For example, the distance between every two proximal screening drive wheels 104 on the proximal screening drive shaft 102 is set to 8 cm, and the distance between every two distal screening drive wheels 105 on the distal screening drive shaft 103 is set to 12 cm. Since the proximal screening drive wheel 104 is connected to the distal screening drive wheel 105 by the screening belt 106, the interval between the two connected screening belts 106 changes gradually from 8 cm to 12 cm.

[0047] The two proximal screening drive shafts 102 are arranged up and down with a gap in the middle. The two distal screening drive shafts 103 are also arranged up and down with a gap in the middle. After the screening belt 106 is sleeved on the proximal screening drive wheels 104 on the two proximal screening drive shafts 102 and the distal screening drive wheels 105 on the two distal screening drive shafts 103, the screening belt 106 will form a square-like structure, and the fruits will fall from the gaps between the screening belts 106 on the upper layer. One end of the packaging component 12 is installed under the upper screening belt 106, and the fruits can be packaged through the packaging component 12.

[0048] When in use, the proximal screening drive shaft 102 is driven to rotate by the driving motor 107, and then the screening belt 106 is driven to move. Fruits of different sizes move with the screening belt 106 and move in the gap between every two screening belts 106. Since the distance between every two screening belts 106 gradually increases from the side close to the storage and conveying part 20 to the side away from the storage and conveying part 20, fruits of different sizes will fall out of the gap between the screening belts 106 at different times, so that the fruits are screened and the fruits will gradually fall according to their sizes.

[0049] Preferably, the proximal screening drive wheel 104 is slidably connected to the proximal screening drive shaft 102 and can be fixed by friction, and the distal screening drive wheel 105 is slidably connected to the distal screening drive shaft 103 and can be fixed by friction.

[0050] When in use, the spacing of the proximal screening transmission wheels 104 can be adjusted by applying an external force, and the spacing of the distal screening transmission wheels 105 can be adjusted by applying an external force, so as to accommodate fruits of more sizes.

[0051] like Figure 6 As shown, preferably, a driving wheel 112 is fixedly provided on the output shaft of the driving motor 107, and a driven wheel 113 cooperating with the driving wheel 112 is provided on the proximal screening transmission shaft 102. The driving wheel 112 and the driven wheel 113 are driven by a transmission belt 108, and the transmission of the transmission belt 108 is more stable.

[0052] like Figure 5 As shown, in order to facilitate the packaging of fruits of different sizes, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that the packaging component 12 includes a packaging plate 109 and a plurality of packaging boxes 110. The packaging plate 109 is tilted on the screening frame 100, and one end is cooperated with the screening belt 106 to receive the fruits screened between every two screening belts 106. The packaging plate 109 is provided with a plurality of packaging tracks 111. The packaging boxes 110 are cooperated with the packaging tracks 111 to receive the fruits dropped from the packaging tracks 111.

[0053] When in use, fruits of different sizes can enter different packaging boxes 110 through different packaging tracks 111 to complete packaging.

[0054] The utility model is suitable for screening spherical fruits such as citrus and oranges with different fruit diameters.

[0055] Working principle of this utility model:

[0056] The utility model realizes the control of the feeding speed of the fruit storage and screening and packaging part 10 by setting the storage and conveying part 20. When in use, the plug-in baffle 201 is first driven by the driving cylinder 202 to be inserted into the plug-in slot 204 to close the bottom of the storage funnel 200, and then the fruit is poured into the storage funnel 200 for temporary storage, and then the plug-in baffle 201 is driven by the driving cylinder 202 to slide out a certain distance, so that the fruit can enter the conveying component 21 from the bottom of the storage funnel 200, and then be transported to the screening and packaging part 10 for screening and packaging. The falling amount of the fruit can be controlled according to the distance that the plug-in baffle 201 is driven by the driving cylinder 202 to slide out, thereby realizing the control of the amount of fruit entering the screening and packaging part 10.

[0057] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A fruit screening and packaging machine, characterized in that: It comprises a screening and packaging part (10) and a material storage and conveying part (20), wherein the material storage and conveying part (20) is arranged on one side of the screening and packaging part (10) and is arranged in coordination with the screening and packaging part (10); The material storage and conveying section (20) comprises a conveying component (21) and a material storage component (22), wherein the material storage component (22) is arranged on the conveying component (21) and is arranged in coordination with the conveying component (21); The material storage component (22) comprises a material storage hopper (200), a plug-in baffle (201) and a pair of driving cylinders (202); the material storage hopper (200) is connected to the conveying component (21) via a pair of connecting arms (203); a plug-in slot (204) is provided on one side of the lower end of the material storage hopper (200); one end of the plug-in baffle (201) is inserted into the plug-in slot (204) and is slidably connected to the plug-in slot (204) for closing the material storage hopper (200); one end of the driving cylinder (202) is arranged on the connecting arm (203), and the other end is connected to the other end of the plug-in baffle (201) for driving the plug-in baffle (201).

2. A fruit screening and packaging machine according to claim 1, characterized in that: The conveying assembly (21) comprises a conveying frame (205), a pair of conveying transmission shafts (206), a conveying belt (207) and a conveying motor (208); the pair of conveying transmission shafts (206) are arranged on the conveying frame (205) and are rotatably connected to the conveying frame (205); the conveying belt (207) is sleeved on the conveying transmission shaft (206) and is arranged in cooperation with the conveying transmission shaft (206); the conveying transmission shaft (206) is used to drive the conveying belt (207); the conveying motor (208) is arranged on one side of the conveying frame (205); the output shaft of the conveying motor (208) passes through the conveying frame (205) and is connected to one of the conveying transmission shafts (206) for driving the conveying transmission shaft (206) to rotate; the output shaft of the conveying motor (208) is rotatably connected to the conveying frame (205).

3. A fruit screening and packaging machine according to claim 2, characterized in that: The storage hopper (200) is arranged on one side above the conveyor frame (205) and is fixedly connected to the conveyor frame (205) via a pair of connecting arms (203). A first baffle (209) is provided on one side of the conveyor frame (205) close to the storage hopper (200). The first baffle (209) is used to prevent fruits from falling from the conveyor belt (207).

4. A fruit screening and packaging machine according to claim 3, characterized in that: A conveying mounting plate (210) for mounting a conveying motor (208) is provided on the conveying frame (205); the conveying mounting plate (210) is fixedly connected to the conveying frame (205); and the conveying motor (208) is fixedly mounted on the conveying mounting plate (210).

5. A fruit screening and packaging machine according to claim 1 or 2, characterized in that: The screening and packaging part (10) comprises a screening component (11) and a packaging component (12). The packaging component (12) is arranged on the screening component (11). The screening component (11) is used for screening fruits, and the packaging component (12) is used for packaging fruits.

6. A fruit screening and packaging machine according to claim 5, characterized in that: The screening assembly (11) comprises a screening frame (100), a screening limit frame (101), a pair of proximal screening transmission shafts (102) and a pair of distal screening transmission shafts (103); the screening limit frame (101) is fixedly arranged on the top of the screening frame (100); the pair of proximal screening transmission shafts (102) are cooperatively arranged on a side of the screening frame (100) close to the material storage and conveying portion (20) and are rotatably connected to the screening frame (100); the pair of distal screening transmission shafts (103) are cooperatively arranged on a side of the screening frame (100) far from the material storage and conveying portion (20) and are rotatably connected to the screening frame (100); a plurality of proximal screening transmission shafts (102) are provided on the proximal screening transmission shaft (102). A plurality of distal screening drive wheels (105) are arranged on the distal screening drive shaft (103); the spacing between every two proximal screening drive wheels (104) on the proximal screening drive shaft (102) is smaller than the spacing between every two distal screening drive wheels (105) on the distal screening drive shaft (103); the proximal screening drive wheels (104) on the two proximal screening drive shafts (102) and the distal screening drive wheels (105) on the two distal screening drive shafts (103) are connected and transmitted via screening belts (106); and the spacing between every two screening belts (106) gradually increases from a side close to the storage and conveying portion (20) to a side away from the storage and conveying portion (20).

7. A fruit screening and packaging machine according to claim 6, characterized in that: The proximal screening drive wheel (104) is slidably connected to the proximal screening drive shaft (102) and can be fixed by friction, and the distal screening drive wheel (105) is slidably connected to the distal screening drive shaft (103) and can be fixed by friction.

8. A fruit screening and packaging machine according to claim 7, characterized in that: A driving motor (107) is provided at the bottom of one side of the screening frame (100) close to the material storage and conveying portion (20). The driving motor (107) is arranged in cooperation with one of the proximal screening transmission shafts (102) to drive the proximal screening transmission shaft (102) for transmission.

9. A fruit screening and packaging machine according to claim 8, characterized in that: A driving wheel (112) is fixedly provided on the output shaft of the driving motor (107), a driven wheel (113) matched with the driving wheel (112) is provided on the proximal screening transmission shaft (102), and transmission is carried out between the driving wheel (112) and the driven wheel (113) via a transmission belt (108).

10. A fruit screening and packaging machine according to claim 9, characterized in that: The packing assembly (12) comprises a packing plate (109) and a plurality of packing boxes (110). The packing plate (109) is arranged obliquely on the screening frame (100), and one end of the packing plate (109) is arranged in cooperation with the screening belt (106) for receiving fruits screened between every two screening belts (106). The packing plate (109) is provided with a plurality of packing tracks (111). The packing boxes (110) are arranged in cooperation with the packing tracks (111) for receiving fruits dropped from the packing tracks (111).

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