A quality and safety testing device based on the supply chain of agricultural products and fresh food e-commerce

Abstract

The present invention provides a quality safety detection device based on the e-commerce supply chain of fresh agricultural products, which relates to the technical field of fresh quality detection equipment, including: a middle conveyor belt, a side synchronous belt, a feed guide frame, a tail fixing frame and a color sorting module, wherein the middle conveyor belt is provided with side synchronous belts on both sides, a feed guide frame is provided above the head end of the middle conveyor belt, a tail fixing frame is provided on the rear side of the middle conveyor belt, the middle part of the middle conveyor belt passes through the lower part of the color sorting module, and the inner sides of both ends of the middle conveyor belt are tightly engaged with a first pulley, and a first synchronous shaft is fixedly provided at the head end of the first pulley. The middle conveyor belt and the side synchronous belts move synchronously to transport fresh agricultural products, avoiding collision and scratch damage of the moving fresh agricultural product skin by the static baffle, solving the problem that the two side baffles of the conveyor belt are stationary, and the fresh agricultural product skin and the two side baffles are prone to collision and scratch damage, which reduces the quality of fresh agricultural products.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh produce quality testing equipment, and in particular to a quality and safety testing equipment based on an e-commerce supply chain of agricultural products and fresh produce. Background Art

[0002] In the development of the agricultural products and fresh food e-commerce supply chain, in order to improve the quality of agricultural products and fresh food and reduce consumer returns and complaints, size screening will be carried out through leakage screening, and color sorters will perform photoelectric detection and image processing on agricultural products and fresh food e-commerce to achieve material sorting and improve the quality of agricultural products and fresh food e-commerce.

[0003] Fresh agricultural products are moved to the bottom of the color sorter via a conveyor belt. The color sorter performs photoelectric detection and image processing. The fresh agricultural products roll onto the conveyor belt one by one through a funnel. In order to prevent the fresh agricultural products from rolling out of the conveyor belt, baffles are provided on both sides of the conveyor belt to restrict the fresh agricultural products. The baffles on both sides of the conveyor belt are stationary. As the fresh agricultural products move with the conveyor belt, the outer skin of the fresh agricultural products and the baffles on both sides are prone to collision, scratches and damage, which reduces the quality of the fresh agricultural products. Summary of the invention

[0004] The invention relates to a quality and safety detection device based on an e-commerce supply chain of fresh agricultural products. The fresh agricultural products are located between a middle conveyor belt and a side synchronous belt. The side synchronous belt in a vertical direction prevents the fresh agricultural products from rolling away from the outside. The middle conveyor belt and the side synchronous belt move synchronously to convey the fresh agricultural products, thereby preventing collision, scratching and damage to the outer skin of the moving fresh agricultural products caused by the existing static baffle. The side synchronous belt and the fresh agricultural products move synchronously without friction or scratching, thereby preventing scratching and damage to the outer skin of the fresh agricultural products caused by the side synchronous belt and the fresh agricultural products, thereby improving the integrity of the fresh fruits.

[0005] The present invention provides a quality and safety testing device based on the supply chain of fresh agricultural products e-commerce, specifically comprising: a middle conveyor belt, a side synchronous belt, a feed guide frame, a tail fixing frame and a color sorting module, wherein side synchronous belts are arranged on both sides of the middle conveyor belt, a feed guide frame is arranged above the head end of the middle conveyor belt, a tail fixing frame is arranged on the rear side of the middle conveyor belt, the middle part of the middle conveyor belt passes through the lower part of the color sorting module, the inner sides of both ends of the middle conveyor belt are tightly meshed with a first pulley, a first synchronous shaft is fixedly arranged at the head end of the first pulley, a second synchronous shaft is rotatably connected to the tail end of the first synchronous shaft by a universal joint, a third synchronous shaft is rotatably connected to the tail end of the second synchronous shaft by a universal joint, the first synchronous shaft and the middle frame are rotatably connected, an outer sliding frame is fixedly arranged at the lower outer side of the middle frame, and a tail discharging chute is fixedly arranged at the outer side of the tail of the middle frame.

[0006] Preferably, the inner sides of both ends of the side synchronous belt are tightly engaged with a second pulley, the center of the second pulley is rotatably connected to the external connection rotating frame, the outer side of the external connection rotating frame is provided with an external connection slide groove, and the external connection slide groove is slidably connected to the bolt at the rear end of the side bracket.

[0007] Preferably, the front side of the side bracket is rotatably connected with the lower lifting frame shaft, the rotation connection between the side bracket and the lower lifting frame is aligned with the center of the second pulley, the head end of the side bracket is rotatably connected with the lower lifting frame shaft, the nut of the bolt at the rear end of the side bracket moves along the thread and presses against the side of the external connection slide groove to achieve the fixing operation of the angle of the side bracket and the external connection rotating frame, the side synchronous belt adjusts the inclination angle with the external connection rotating frame, and the side synchronous belts on both sides form a V-shaped structure.

[0008] Preferably, the lower part of the lower lifting frame is vertically slidingly connected to the lower translation frame, the middle part of the lower translation frame is rotatably connected to the lifting screw, the middle part of the lower lifting frame is screwed to the lifting screw, the lower lifting frame moves axially vertically along the thread of the lifting screw, the lower part of the lower translation frame is horizontally screwed to the translation screw, the lower translation frame moves axially horizontally along the thread of the translation screw, the tail end of the translation screw is rotatably connected to the middle frame body, the lower translation frame slides horizontally on the top of the outer slide, and the thread of the translation screw guides the lower translation frame to move horizontally along the outer slide.

[0009] Preferably, the third synchronous shaft is fixedly connected to the center of the second pulley, side synchronous belts are provided on both sides of the upper part of the middle conveyor belt, the center of the tail end of the first pulley is connected to another first synchronous shaft through gear meshing, the middle conveyor belt and the side synchronous belts on both sides rotate in the same direction on adjacent sides, the middle conveyor belt and the side synchronous belts move synchronously to transport fresh agricultural products, the middle conveyor belt and the side synchronous belts transport the fresh agricultural products to the coloring and selection module, the vertical side synchronous belts prevent the fresh agricultural products from rolling away from the outside, and prevent the existing static baffle from colliding and scratching the outer skin of the moving fresh agricultural products, the middle conveyor belt and the side synchronous belts have the same moving speed as the fresh agricultural products, the three are in a relatively static state, and the side synchronous belts and the fresh agricultural products move synchronously without friction and scratching.

[0010] Preferably, a middle baffle is slidingly provided on the inner side of the feed guide frame, and an upper displacement screw is rotatably provided on the upper part of the middle baffle. The middle part of the upper displacement screw is screwed to the feed guide frame, and the space within the feed guide frame and the middle baffle bracket can only pass one fresh agricultural product. The fresh agricultural products go to the top of the middle conveyor belt one by one, and the upper displacement screw rotates and guides the movement of the middle baffle through the external thread to expand or reduce the distance space between the middle baffle and the feed guide frame.

[0011] Preferably, a first air nozzle and a second air nozzle are fixedly provided on both sides of the upper part of the tail fixing frame, the first air nozzle and the second air nozzle are provided with valve bodies and are connected by a color sorting module to control the air jet, the first air nozzle is located above the tail discharge chute, and the second air nozzle is located on the side opposite to the tail discharge chute.

[0012] Preferably, the lower part of the feed guide frame is a V-shaped groove structure, the feed guide frame is located above the head ends of the middle conveyor belt and the side synchronous belt, the middle conveyor belt and the side synchronous belt both pass under the color sorting module, the side synchronous belt on the opposite side in front of the tail discharging chute extends to the tail of the middle conveyor belt, and the side synchronous belt on the same side of the tail discharging chute extends to the adjacent position of the tail discharging chute.

[0013] The present invention provides a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce, which has the following beneficial effects:

[0014] Fresh agricultural products are between the middle conveyor belt and the side synchronous belt. The vertical side synchronous belt prevents the fresh agricultural products from rolling away from the outside. The middle conveyor belt and the side synchronous belt move synchronously to transport the fresh agricultural products, avoiding the collision and scratch damage of the existing static baffle on the moving skin of the fresh agricultural products. The side synchronous belt and the fresh agricultural products move synchronously without friction and scratching, avoiding scratches and damages between the side synchronous belts and the skin of the fresh agricultural products, thereby improving the integrity of the fresh fruit.

[0015] The side synchronous belts adjust their inclination angles along with the externally connected rotating frame. After the side synchronous belts on both sides form a V-shaped structure, they can realize the transportation of larger fresh agricultural products. The side synchronous belts on both sides move towards each other with the lower translation frame to expand and reduce the interval distance, so as to realize the transportation of larger or smaller fresh agricultural products, improve the compatibility when transporting fresh agricultural products in different seasons, avoid multiple fresh agricultural products being arranged side by side due to excessive intervals, and reduce the recognition efficiency of the color sorting module.

[0016] The second air nozzle is started to push the unqualified agricultural products on the top of the middle conveyor belt to the tail discharge ramp. The first air nozzle above the tail discharge ramp pushes the qualified agricultural products to lean against the opposite side synchronous belt to keep the position of the qualified fresh agricultural products on the top of the middle conveyor belt stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture:

[0020] Figure 1 A schematic diagram showing the overall structure of the present application;

[0021] Figure 2 A schematic diagram of the conveyor belt structure of the present application is shown;

[0022] Figure 3 A schematic diagram showing the side synchronous belt structure of the present application is shown;

[0023] Figure 4 A schematic diagram of the lower translation frame structure of the present application is shown;

[0024] Figure 5 A schematic structural diagram of a side synchronous belt cross section of the present application is shown;

[0025] Figure 6 The schematic diagram of the structure of the first pulley of the present application is shown;

[0026] Figure 7 A schematic diagram of the side bracket structure of the present application is shown;

[0027] Figure 8 A schematic structural diagram of the tail fixing frame of the present application is shown;

[0028] Fig. 9 A schematic structural diagram of a feed guide frame of the present application is shown;

[0029] Reference numerals list

[0030] 1. Middle conveyor belt; 101. First pulley; 102. First synchronous shaft; 103. Second synchronous shaft; 104. Third synchronous shaft; 105. Middle frame; 106. Outer carriage; 107. Tail discharge chute;

[0031] 2. Side synchronous belt; 201. Second pulley; 202. External connection rotating frame; 203. External connection slide; 204. Side bracket; 205. Lower lifting frame; 206. Lower translation frame; 207. Lifting screw; 208. Translation screw;

[0032] 3. Feed guide frame; 301. Middle baffle; 302. Upper displacement screw;

[0033] 4. Tail fixing bracket; 401. First air nozzle; 402. Second air nozzle;

[0034] 5. Color sorting module. DETAILED DESCRIPTION

[0035] Example 1: Please refer to Figures 1 to 9 :

[0036] The present invention proposes a quality and safety testing device based on the supply chain of fresh agricultural products e-commerce, comprising: a middle conveyor belt 1, a side synchronous belt 2, a feed guide frame 3, a tail fixing frame 4 and a color sorting module 5, the inner sides of both ends of the middle conveyor belt 1 are tightly meshed with a first pulley 101, a first synchronous shaft 102 is fixedly arranged at the head end of the first pulley 101, a tail end universal joint of the first synchronous shaft 102 is rotatably connected with a second synchronous shaft 103, a tail end universal joint of the second synchronous shaft 103 is rotatably connected with a third synchronous shaft 104, the first synchronous shaft 102 is rotatably connected with a middle frame body 105, an outer sliding frame 106 is fixedly arranged at the lower outer side of the middle frame body 105, a tail discharging chute 107 is fixedly arranged at the outer side of the tail of the middle frame body 105, side synchronous belts 2 are arranged on both sides of the middle conveyor belt 1, the inner sides of both ends of the side synchronous belt 2 are tightly meshed with a second pulley 201, the center of the second pulley 201 is rotatably connected with the outer connecting rotating frame 202, An external connection slot 203 is provided on the outer side of the connecting rotating frame 202, and the external connection slot 203 is slidably connected to the bolt at the rear end of the side bracket 204. The lower part of the lower lifting frame 205 is vertically slidably connected to the lower translation frame 206, and the middle part of the lower translation frame 206 is rotatably connected to the lifting screw 207. The middle part of the lower lifting frame 205 is screwed to the lifting screw 207, and the lower lifting frame 205 moves vertically along the thread of the lifting screw 207, and the lower translation frame 206 is rotated. The lower part is horizontally screwed with a translation screw 208, and the lower translation frame 206 moves axially and horizontally along the thread of the translation screw 208. The tail end of the translation screw 208 is rotatably connected to the middle frame 105, and the lower translation frame 206 slides horizontally on the top of the outer slide 106. The thread of the translation screw 208 guides the lower translation frame 206 to move horizontally along the outer slide 106, and the lower translation frame 206, the lower lifting frame 205, the side synchronous belt 2 and other components are close to or away from the middle conveyor belt 1;

[0037] A feed guide frame 3 is arranged above the head end of the middle conveyor belt 1, and a tail fixing frame 4 is arranged at the rear side of the middle conveyor belt 1. A first air nozzle 401 and a second air nozzle 402 are fixedly arranged on both sides of the upper part of the tail fixing frame 4. The first air nozzle 401 and the second air nozzle 402 are provided with valve bodies and are connected and controlled by the color sorting module 5 to eject air. The first air nozzle 401 is located above the tail discharge chute 107, and the second air nozzle 402 is located on the side opposite to the tail discharge chute 107. The color sorting module 5 controls the second air nozzle 402 to start the air discharge to push the unqualified agricultural products at the top of the middle conveyor belt 1 into the tail discharge chute 107. The middle part of the middle conveyor belt 1 passes through the color sorting module 5. The lower part of the feed guide frame 3 is a V-shaped groove structure, the feed guide frame 3 is located above the head ends of the middle conveyor belt 1 and the side synchronous belt 2, the middle conveyor belt 1 and the side synchronous belt 2 both pass through the bottom of the color sorting module 5, the side synchronous belt 2 on the opposite side in front of the tail discharging ramp 107 is extended to the tail of the middle conveyor belt 1, and the side synchronous belt 2 on the same side of the tail discharging ramp 107 is extended to the adjacent position of the tail discharging ramp 107. When the fresh agricultural products are qualified, the first air nozzle 401 above the tail discharging ramp 107 pushes the qualified agricultural products to lean against the opposite side synchronous belt 2, and the qualified agricultural products are transported to the tail end of the middle conveyor belt 1 for collection.

[0038] In the embodiment of the present disclosure, the front side of the side bracket 204 and the lower lifting frame 205 are rotatably connected in cooperation with the rotating shaft, the rotating connection between the side bracket 204 and the lower lifting frame 205 is aligned with the center of the second pulley 201, the head end of the side bracket 204 and the lower lifting frame 205 are rotatably connected in cooperation with the rotating shaft, the nut of the bolt at the rear end of the side bracket 204 moves along the thread to fit tightly against the side of the external connection slide groove 203 to achieve the fixing operation of the angle of the side bracket 204 and the external connection rotating frame 202, the side synchronous belt 2 adjusts the inclination angle with the external connection rotating frame 202, and the side synchronous belts 2 on both sides form a V-shaped structure, which can achieve greater compatibility with the transportation of fresh agricultural products.

[0039] In the disclosed embodiment, the third synchronous shaft 104 is fixedly connected to the center of the second pulley 201, and side synchronous belts 2 are provided on both sides of the upper part of the middle conveyor belt 1. The center of the tail end of the first pulley 101 is connected to another first synchronous shaft 102 through gear meshing. The middle conveyor belt 1 and the side synchronous belts 2 on both sides rotate in the same direction on adjacent sides, and the middle conveyor belt 1 and the side synchronous belts 2 move synchronously to convey fresh agricultural products. The middle conveyor belt 1 and the side synchronous belts 2 convey the fresh agricultural products to move toward the coloring and selection module 5. The vertical side synchronous belts 2 prevent the fresh agricultural products from rolling away from the outside, and prevent the existing static baffle from colliding and scratching the outer skin of the moving fresh agricultural products. The middle conveyor belt 1 and the side synchronous belts 2 have the same moving speed as the fresh agricultural products, and the three are in a relatively static state. The side synchronous belts 2 and the fresh agricultural products move synchronously without friction and scratching, thus avoiding scratches between the side synchronous belts 2 and the outer skin of the fresh agricultural products.

[0040] In the embodiment of the present disclosure, a middle baffle 301 is slidingly provided on the inner side of the feed guide frame 3, and an upper displacement screw 302 is rotatably provided on the upper part of the middle baffle 301. The middle part of the upper displacement screw 302 is screwed to the feed guide frame 3. The space within the feed guide frame 3 and the middle baffle 301 bracket can only pass one fresh agricultural product, avoiding the overlap of fresh agricultural products. The fresh agricultural products are delivered to the top of the middle conveyor belt 1 one by one, and the upper displacement screw 302 rotates and guides the movement of the middle baffle 301 through the external thread to expand or reduce the distance space between the middle baffle 301 and the feed guide frame 3, thereby achieving compatibility with fresh agricultural products of different sizes.

[0041] Embodiment 2, on the basis of embodiment 1, the external connection rotating frame 202 of the side synchronous belt 2 is provided with a turbine and is rotatably connected with the lower lifting frame 205, and the lower lifting frame 205 is provided with a worm gear and meshes with the turbine of the external connection rotating frame 202, so as to realize the rotation of the external connection rotating frame 202 and the side synchronous belt 2, adjust the inclination angle, and eliminate the setting of the external connection slide groove 203 and the side bracket 204, thereby reducing the space occupied by the position of the external connection slide groove 203 and the side bracket 204, and the distance between the adjacent middle conveyor belt 1 and the side synchronous belt 2 is narrower and more compact, so that multiple middle conveyor belts 1 and side synchronous belts 2 can be arranged side by side to improve the screening processing efficiency.

[0042] The working principle of this embodiment: fresh agricultural products are first screened for size classification and then screened for damage through the color sorting module 5, so as to improve the quality of fresh agricultural products and avoid consumer returns and complaints due to product quality in e-commerce supply. The fresh agricultural products after screening enter the feed guide rack 3. The space in the feed guide rack 3 and the middle baffle 301 bracket can only pass one fresh agricultural product to avoid overlapping of fresh agricultural products. The fresh agricultural products go to the top of the middle conveyor belt 1 one by one, and the upper displacement screw 302 rotates and guides the movement of the middle baffle 301 through the external thread to expand or reduce the distance between the middle baffle 301 and the feed guide rack 3, so as to realize the screening of fresh agricultural products of different sizes and improve the compatibility with fresh agricultural products of different sizes. The middle conveyor belt 1 and the side synchronous belt 2 are connected through the first synchronous belt 301. The power transmission of the step shaft 102, the second synchronous shaft 103, and the third synchronous shaft 104 realizes synchronous rotation and conveying operation in the same direction. The fresh agricultural products on the inner side of the feed guide frame 3 roll down between the middle conveyor belt 1 and the side synchronous belt 2. The middle conveyor belt 1 and the side synchronous belt 2 move synchronously to convey the fresh agricultural products. The middle conveyor belt 1 and the side synchronous belt 2 convey the fresh agricultural products to the coloring and sorting module 5. The vertical side synchronous belt 2 prevents the fresh agricultural products from rolling away from the outside, and prevents the existing static baffle from colliding and scratching the outer skin of the moving fresh agricultural products. The middle conveyor belt 1 and the side synchronous belt 2 have the same moving speed as the fresh agricultural products, and the three are in a relatively static state. The side synchronous belt 2 and the fresh agricultural products move synchronously without friction and scratching, avoiding the scratching and damage of the side synchronous belt 2 and the outer skin of the fresh agricultural products, thereby improving the integrity of the fresh fruit.

[0043] The bolt at the rear end of the side bracket 204 slides along the external connection slide groove 203, and the nut of the bolt at the rear end of the side bracket 204 moves along the thread to fit closely to the side of the external connection slide groove 203 to achieve the fixing operation of the angle of the side bracket 204 and the external connection rotating frame 202. The side synchronous belt 2 adjusts the inclination angle along the external connection rotating frame 202. After the side synchronous belts 2 on both sides form a V-shaped structure, the transportation of larger fresh agricultural products is achieved. The translation screw 208 rotates, and the thread of the translation screw 208 guides the lower translation frame 206 to move horizontally along the outer slide frame 106. The lower translation frame 206, the lower lifting frame 205, the side synchronous belt 2 and other components keep moving synchronously towards or away from the middle conveyor The conveyor belt 1, the lifting screw 207 rotates, the thread of the lifting screw 207 guides the lower lifting frame 205 and the lower lifting frame 205 and the side synchronous belt 2 and other components to move vertically and lift, the side synchronous belt 2 adjusts the interval between the middle conveyor belt 1, and the side synchronous belts 2 on both sides expand and reduce the interval as the lower translation frame 206 moves in opposite directions, so as to realize the conveying of agricultural products of different sizes such as larger or smaller, improve the compatibility of conveying agricultural products of different seasons, avoid the excessive spacing space causing multiple agricultural products to be arranged side by side, resulting in reduced recognition efficiency of the color sorting module 5, and realize the conveying of agricultural products of all seasons;

[0044] The camera of the color sorting module 5 identifies the fresh agricultural products below, and the color sorting module 5 controls the second air nozzle 402 to start exhausting air to push the unqualified agricultural products on the top of the middle conveyor belt 1 to the tail discharge ramp 107. When the fresh agricultural products are qualified, the first air nozzle 401 above the tail discharge ramp 107 pushes the qualified agricultural products to lean against the opposite side synchronous belt 2, so as to keep the position of the qualified fresh agricultural products on the top of the middle conveyor belt 1 stable, and the qualified agricultural products are transported to the tail end of the middle conveyor belt 1 for collection, thereby improving the quality of fresh agricultural products and reducing the problems of consumer returns and complaints caused by product quality problems.

Claims

1. A quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce, comprising: A middle conveyor belt (1), a side synchronous belt (2), a feed guide frame (3), a tail fixing frame (4) and a color sorting module (5); characterized in that the side synchronous belts (2) are arranged on both sides of the middle conveyor belt (1), a feed guide frame (3) is arranged above the head end of the middle conveyor belt (1), a tail fixing frame (4) is arranged on the rear side of the middle conveyor belt (1), the middle part of the middle conveyor belt (1) passes through the lower part of the color sorting module (5), the inner sides of both ends of the middle conveyor belt (1) are tightly engaged with the first pulley (101), and the first A first synchronous shaft (102) is fixedly arranged at the head end of the pulley (101); a second synchronous shaft (103) is rotatably connected to the tail end of the first synchronous shaft (102) through a universal joint; a third synchronous shaft (104) is rotatably connected to the tail end of the second synchronous shaft (103) through a universal joint; the first synchronous shaft (102) and the middle frame (105) are rotatably connected; an outer slide frame (106) is fixedly arranged at the lower outer side of the middle frame (105); and a tail discharge chute (107) is fixedly arranged at the outer side of the tail of the middle frame (105).

2. According to claim 1, a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce, characterized in that: The inner sides of both ends of the side synchronous belt (2) are tightly engaged with a second pulley (201), the center of the second pulley (201) is rotatably connected to the external connection rotating frame (202), the outer side of the external connection rotating frame (202) is provided with an external connection sliding groove (203), and the external connection sliding groove (203) is slidably connected to the bolts at the rear end of the side bracket (204).

3. According to claim 2, a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce is characterized in that: The front side of the side bracket (204) is rotatably connected to the rotating shaft of the lower lifting frame (205); the rotating connection point between the side bracket (204) and the lower lifting frame (205) is aligned with the center of the second pulley (201); and the head end of the side bracket (204) is rotatably connected to the rotating shaft of the lower lifting frame (205).

4. According to claim 3, a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce is characterized in that: The lower part of the lower lifting frame (205) is vertically slidably connected to the lower translation frame (206), the middle part of the lower translation frame (206) is rotatably connected to the lifting screw (207), the middle part of the lower lifting frame (205) is screwed to the lifting screw (207), the lower lifting frame (205) moves vertically along the lifting screw (207), the lower part of the lower translation frame (206) is horizontally screwed to the translation screw (208), the lower translation frame (206) moves horizontally along the translation screw (208), the tail end of the translation screw (208) is rotatably connected to the middle frame body (105), and the lower translation frame (206) slides horizontally on the top of the outer slide frame (106).

5. According to claim 4, a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce is characterized in that: The third synchronous shaft (104) and the center of the second pulley (201) are fixedly connected, and side synchronous belts (2) are arranged on both sides of the upper part of the middle conveyor belt (1). The center of the tail end of the first pulley (101) is connected to another first synchronous shaft (102) through gear meshing, and the middle conveyor belt (1) and the side synchronous belts (2) on both sides rotate in the same direction on adjacent sides.

6. According to claim 1, a quality and safety testing device based on the supply chain of fresh agricultural products and e-commerce is characterized in that: A middle baffle (301) is slidably provided on the inner side of the feed guide frame (3), an upper displacement screw (302) is rotatably provided on the upper part of the middle baffle (301), and the middle part of the upper displacement screw (302) is screwed to the feed guide frame (3).

7. The quality and safety testing equipment based on the supply chain of fresh agricultural products and e-commerce according to claim 6 is characterized in that: A first air nozzle (401) and a second air nozzle (402) are fixedly arranged on both sides of the upper part of the tail fixing frame (4), the first air nozzle (401) is located above the tail discharge chute (107), and the second air nozzle (402) is located on the side opposite to the tail discharge chute (107).

8. The quality and safety testing equipment based on the supply chain of fresh agricultural products and e-commerce according to claim 5 is characterized in that: The lower part of the feed guide frame (3) is a V-shaped groove structure. The feed guide frame (3) is located above the head ends of the middle conveyor belt (1) and the side synchronous belt (2). The middle conveyor belt (1) and the side synchronous belt (2) both pass through the bottom of the color sorting module (5). The side synchronous belt (2) on the opposite side in front of the tail discharge chute (107) extends to the tail of the middle conveyor belt (1), and the side synchronous belt (2) on the same side of the tail discharge chute (107) extends to the adjacent position of the tail discharge chute (107).

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