Fruit packaging equipment with pre-cleaning function and packaging method

Abstract

The invention relates to the technical field of fruit packaging, in particular to fruit packaging equipment with a pre-cleaning function and a packaging method.The equipment comprises a rack and a mounting groove formed in the middle of the rack, mounting frames are arranged on the two sides of the mounting groove, a plurality of cleaning rollers are arranged on the two mounting frames, and two stripping rollers are arranged in the mounting groove. The grapefruit peeling device has the advantages that the two mounting frames can slide relatively, accordingly, the grapefruit peeling device can be adaptively adjusted according to different sizes of grapefruits, and the heads of the grapefruits can be controlled to be in contact with the two peeling rollers in the mounting grooves by adjusting the distance between the two mounting frames. The surface of the grapefruit is rotationally brushed through the cleaning roller, meanwhile, upward component force is generated through the rotating direction of the cleaning roller, the pull-down effect of the stripping roller on the grapefruit is counteracted, and the grapefruit is prevented from being wound into the gap of the stripping roller. Compared with the prior art, through the mode, the grapefruit cleaning device can efficiently and automatically adapt to grapefruits of different sizes, batch and continuous operation is achieved, the cleaning efficiency is improved, and the packaging quality is optimized.

Description

Technical Field

[0001] The invention relates to the technical field of fruit packaging, in particular to fruit packaging equipment and a packaging method with a pre-cleaning function. Background Art

[0002] Pomelo is native to Southeast Asia and has a cultivation history of more than 3,000 years in China.

[0003] To preserve freshness and retain moisture, pomelo needs to be wrapped with a layer of heat shrink film. In order to save the cost of heat shrink film, the existing technology requires manual packaging of each pomelo, which is extremely inefficient and also brings labor costs. Chinese patent application publication number CN114435658B discloses a pre-cleanable fruit packaging device, including a gantry and a surface cleaning system. The front of the gantry is connected to the surface cleaning system. This patent abandons the traditional manual packaging method and pre-cleans the surface of the pomelo to prevent dust and other debris from contacting the heat shrink film and forming spots on the surface of the pomelo. The branches at the top of the pomelo are cut according to their length to keep the pomelo head smooth, which is convenient for wrapping with heat shrink film. However, its structure is relatively complex. When pruning the pomelo leaves, a visual camera is used to assist in pruning. Although the pruning accuracy can be improved, the efficiency is low and the investment in production costs is increased. Summary of the Invention

[0004] To address the above issues, a fruit packaging device and method with a pre-cleaning function are provided. Two mounting frames slide relative to each other, allowing the device to adapt to the size of the grapefruit. Adjusting the spacing between the two mounting frames controls the contact between the grapefruit's head and the two peeling rollers within the mounting slots. A cleaning roller rotates and scrubs the surface of the grapefruit. The rotating motion of the cleaning roller generates an upward force that counteracts the downward pull of the peeling roller on the grapefruit, preventing it from being caught in the gap between the peeling rollers. Compared to existing technologies, this method can efficiently and automatically adapt to grapefruits of varying sizes, enabling batch and continuous operation, improving cleaning efficiency, and optimizing packaging quality.

[0005] In order to solve the problems of the existing technology, the present invention provides a fruit packaging equipment with a pre-cleaning function, including a frame and a mounting groove arranged in the middle of the frame, wherein mounting frames are arranged on both sides of the mounting groove, and the two mounting frames can slide relative to each other along the length direction of the frame. The two mounting frames are mirror-symmetrical, and the two mounting frames are inclined to form a V-shaped clamping space; a plurality of cleaning rollers arranged along the inclined direction are provided on the two mounting frames, and the cleaning rollers on the two mounting frames rotate toward the side away from the mounting groove; two stripping rollers arranged parallel to the cleaning rollers are provided in the mounting groove, and the two stripping rollers rotate towards each other.

[0006] Preferably, the bottom of the two mounting frames are provided with a mounting plate that can slide along the length direction of the frame, the mounting frames are hinged to the mounting plates, the mounting plates are provided with elastic support rods that can support the mounting frames, and pressure sensors are provided on both mounting frames.

[0007] Preferably, both peeling rollers are hollow structures, and both peeling rollers are provided with a plurality of evenly distributed through holes surrounding the axis thereof.

[0008] Preferably, a collecting trough for collecting water and branches and leaves is provided below the two stripping rollers, and a spiral blade parallel to the axis of the stripping roller is provided on the collecting trough.

[0009] Preferably, both mounting plates are provided with a water collecting trough with an inclined top surface, and both mounting plates are inclined toward one side of the mounting trough.

[0010] Preferably, the mounting frame is a C-shaped structure, a plurality of cleaning rollers are arranged equidistantly along the outline of the mounting frame, and a second rotary drive motor is provided on the mounting frame to synchronously drive all the cleaning rollers to rotate.

[0011] Preferably, the frame is provided with a track extending along the length direction thereof, the mounting plate is slidably arranged on the track, and a linear drive assembly for driving the mounting plate to move is provided at the end of the frame.

[0012] Preferably, a push plate capable of sliding along the axis direction of the cleaning roller is provided on the frame between the two mounting frames, and the push plate is inclined.

[0013] Preferably, the cleaning roller is provided with a plurality of cleaning ridges that can surround the axis.

[0014] A fruit packaging method, applied to the above-mentioned fruit packaging equipment with a pre-cleaning function, comprises the following steps:

[0015] S1. Place the grapefruit with its head facing downward into the V-shaped clamping space of the two mounting frames, and use the inclined surfaces of the mounting frames to guide the grapefruit's head to automatically droop into the mounting groove area.

[0016] S2. According to the size of the grapefruit, drive the two mounting frames to slide relative to each other along the length direction of the frame, narrowing or widening the spacing of the V-shaped clamping space, so that the grapefruit head is accurately positioned in the contact area between the two peeling rollers in the mounting groove.

[0017] S3. Start the cleaning rollers on the mounting frame and control the cleaning rollers on both sides to rotate toward the side away from the mounting groove. The cleaning rollers are used to rotate and scrub the surface of the grapefruit. At the same time, the rotation of the cleaning rollers is used to generate an upward component force to offset the downward pulling effect of the peeling rollers on the grapefruit, thereby preventing the grapefruit from being rolled into the gap between the peeling rollers.

[0018] S4. Drive the two stripping rollers to rotate in opposite directions, and utilize the speed difference and direction difference between the stripping roller and the cleaning roller to gradually tear and peel the grapefruit head branches under the coordinated action of the shear force of the stripping roller and the pulling force of the cleaning roller.

[0019] S5. Adjust the sliding distance of the mounting frame to release the grapefruits so that they are transported to the packaging unit.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention utilizes two mounting frames that slide relative to each other along the length of the frame, allowing the device to adaptively adjust to the varying sizes of grapefruit. When a grapefruit is positioned between the two mounting frames, the spacing between the two mounting frames is adjusted to control the contact between the grapefruit's head and the two peeling rollers within the mounting slot. Simultaneously, the cleaning rollers on the mounting frames rotate toward the side away from the mounting slot, thereby providing a preliminary cleansing of the grapefruit's surface. During operation, a slight upward supporting force is applied to the grapefruit to prevent it from being drawn into the peeling rollers, ensuring stability during the peeling process and preventing damage. This also enhances the effectiveness of leaf and branch peeling. Compared to existing technologies, this method allows the device to efficiently and automatically adapt to grapefruits of varying sizes, enabling batch and continuous operation, improving cleaning efficiency, and optimizing packaging quality.

[0022] 2. The mounting frame of the present invention is connected to the mounting plate via a hinged structure, allowing its tilt angle to be adjusted within a certain range to accommodate the shape and size of the grapefruit. An elastic support rod is provided on the mounting plate to support the mounting frame, allowing it to maintain a reasonable tilt angle, ensuring that the grapefruit naturally fits within the clamping area between the two mounting frames and that the grapefruit branches and leaves are close to the peeling roller. In conjunction with a pressure sensor, pressure detection and adaptive adjustment are used to reduce the grapefruit damage rate, improve the convenience of subsequent packaging and storage, and enhance the overall efficiency of the fruit processing line.

[0023] 3. The present invention utilizes a hollow peeling roller with multiple through-holes evenly distributed along its surface along its axis. These holes allow moisture to penetrate the roller surface, preventing moisture accumulation in the peeling area and ensuring a stable and efficient peeling process. A collection trough is added below the two peeling rollers to collect moisture and leaves generated during the pomelo peeling process, preventing impurities from dispersing and impacting equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural diagram of a fruit packaging device with a pre-cleaning function.

[0025] Figure 2 It is a top view of a fruit packaging machine with pre-cleaning function.

[0026] Figure 3 It is a front view of a fruit packaging device with a pre-cleaning function.

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the frame and two mounting frames in a fruit packaging equipment with pre-cleaning function Figure 1 .

[0028] Figure 5 The present invention is a schematic diagram of a partial three-dimensional structure of a frame and one of the mounting frames in a fruit packaging device with a pre-cleaning function.

[0029] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a mounting frame in a fruit packaging device with a pre-cleaning function.

[0030] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a mounting frame of a fruit packaging equipment with a pre-cleaning function.

[0031] Figure 8 This is a schematic diagram of the three-dimensional structure of the frame and two mounting frames in a fruit packaging equipment with pre-cleaning function Figure 2 .

[0032] Figure 9 yes Figure 5 Enlarged view of point A in the middle.

[0033] Figure 10 yes Figure 8 Enlarged view of point B in the middle.

[0034] The numbers in the figure are:

[0035] 1. Frame; 11. Mounting slot; 111. Peeling roller; 1111. Through hole; 1112. First rotary drive motor; 12. Packaging unit; 13. Collecting tank; 131. Spiral blade; 14. Push plate; 2. Mounting frame; 21. Cleaning roller; 211. Cleaning ridge; 22. Mounting plate; 221. Elastic support rod; 222. Water collecting tank; 223. Track; 224. Linear drive assembly; 23. Second rotary drive motor; 3. Grapefruit. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1 to 4As shown: A fruit packaging equipment with a pre-cleaning function includes a frame 1 and a mounting groove 11 arranged in the middle of the frame 1, and mounting frames 2 are provided on both sides of the mounting groove 11. The two mounting frames 2 can slide relative to each other along the length direction of the frame 1. The two mounting frames 2 are mirror-symmetrical, and the two mounting frames 2 are inclined to form a V-shaped clamping space; a plurality of cleaning rollers 21 are arranged along the inclined direction thereof, and the cleaning rollers 21 on the two mounting frames 2 rotate toward the side away from the mounting groove 11; two stripping rollers 111 arranged parallel to the cleaning rollers 21 are provided in the mounting groove 11, and the two stripping rollers 111 rotate towards each other.

[0038] By putting the grapefruit 3 with its head facing downward between the two mounting frames 2, since the two mounting frames 2 are mirror-symmetrical and the two mounting frames 2 are tilted on the frame 1, the downward posture of the grapefruit 3 can adapt to the V-shaped clamping space formed by the two mounting frames 2. The two mounting frames 2 can slide relative to each other, so that the mounting frames 2 can better adapt to the shapes of grapefruits 3 of different sizes, so that the head of the grapefruit 3 can better contact the two peeling rollers 111. Since the peeling rollers 111 are set in the mounting groove 11, when the head of the grapefruit 3 is facing downward, the branches and leaves on the grapefruit 3 will fall between the two peeling rollers 111, and the branches and leaves on the grapefruit 3 can be peeled by the two peeling rollers 111 rotating in opposite directions. Cleaning, in order to ensure that the pomelo 3 will not be rolled into the two peeling rollers 111 by the two peeling rollers 111 rotating in opposite directions, multiple cleaning rollers 21 are used on the two mounting frames 2, and the cleaning rollers 21 all rotate toward the side away from the mounting groove 11, so that the cleaning rollers 21 on the mounting frame 2 can clean the surface of the pomelo 3 while assisting the pomelo 3 to be slightly lifted, so that the branches and leaves of the pomelo 3 can be better peeled off. In this way, the equipment can peel off the branches and leaves of pomelo 3 of different sizes, which is convenient for the subsequent packaging of the pomelo 3, so that the surface of the pomelo 3 can be pre-cleaned, and the branches and leaves on the pomelo 3 can be peeled off, so that the pomelo 3 can be better included in the subsequent packaging film.

[0039] When the grapefruit 3 enters the device through the conveying mechanism, the grapefruit 3 enters between the two mounting frames 2 with its head facing downward. Since the two mounting frames 2 are mirror-symmetrical and tilted on the frame 1, a V-shaped clamping space is formed between the two mounting frames 2. The two mounting frames 2 can slide relative to each other along the length direction of the frame 1, so that the equipment can be adaptively adjusted according to the different sizes of the grapefruit 3. When the grapefruit 3 is located between the two mounting frames 2, the distance between the two mounting frames 2 is adjusted to control the contact between the head of the grapefruit 3 and the two peeling rollers 111 in the mounting groove 11. At the same time, the cleaning roller 21 on the mounting frame 2 will rotate toward the side away from the mounting groove 11, thereby performing preliminary cleaning on the surface of the grapefruit 3 and applying a slight upward supporting force to the grapefruit 3 during operation to prevent the grapefruit 3 from being caught in the peeling roller 111, ensuring that the grapefruit 3 remains stable during the peeling process to prevent damage and enhance the branch and leaf peeling effect.

[0040] When the head of the grapefruit 3 contacts the peeling roller 111, the two peeling rollers 111 rotate in opposite directions, causing the branches and leaves at the head of the grapefruit 3 to be peeled off and fall off, thus completing the cleaning of the branches and leaves at the head of the grapefruit 3. Compared with existing technologies, this method can efficiently and automatically adapt to grapefruits 3 of different sizes, achieving batch and continuous operation, improving cleaning efficiency and optimizing packaging quality. It ensures that the branches and leaves at the head of the grapefruit 3 are quickly peeled, effectively avoiding the inefficiency of manual pruning, improving production efficiency, and eliminating the need for costly visual pruning solutions.

[0041] After cleaning, the grapefruit 3 will enter the packaging unit 12. The equipment can not only remove the branches and leaves on the surface of the grapefruit 3, but also pre-clean the impurities on the surface of the grapefruit 3, ensuring that the grapefruit 3 is cleaner when entering the packaging link, improving the sealing and aesthetics of subsequent packaging, reducing the packaging defect rate, realizing the automated processing of pre-cleaning and branch and leaf stripping of the grapefruit 3, and optimizing the subsequent packaging process.

[0042] like Figures 1 to 8 As shown: the bottom of the two mounting frames 2 is provided with a mounting plate 22 that can slide along the length direction of the frame 1, the mounting frames 2 are hinged on the mounting plate 22, and the mounting plate 22 is provided with an elastic support rod 221 that can support the mounting frames 2, and both mounting frames 2 are provided with pressure sensors.

[0043] Mounting frame 2 is connected to mounting plate 22 via a hinged structure, allowing its tilt angle to be adjusted within a certain range to accommodate the shape and size of grapefruit 3. Mounting plate 22 is provided with an elastic support rod 221, which supports mounting frame 2 and enables it to maintain a suitable tilt angle. This ensures that grapefruit 3 fits naturally within the clamping area between mounting frames 2, ensuring that the branches and leaves of grapefruit 3 are close to peeling roller 111. Furthermore, the elastic support rod 221 provides a certain cushioning effect, allowing mounting frame 2 to adjust adaptively to the size of grapefruit 3, preventing the varying sizes of grapefruit 3 from affecting peeling quality.

[0044] Furthermore, pressure sensors (not shown) are installed on both mounting brackets 2 to monitor the pressure applied to the pomelo 3 in real time. When the pressure sensor detects that the pressure on the pomelo 3 exceeds a set threshold, the mounting brackets 2 adjust their grip or issue an alarm to prevent damage to the pomelo 3's skin due to excessive pressure. Combined with the rotational assistance of the cleaning roller 21, this ensures that the pomelo 3 remains stable during the peeling process without compromising its integrity, thereby improving product quality.

[0045] The equipment can continuously process grapefruits 3 of different sizes without manual adjustment of the position of the mounting frame 2, thereby reducing manual intervention and improving the degree of automation. By means of pressure detection and adaptive adjustment, the damage rate of the grapefruit 3 is reduced, the convenience of subsequent packaging and storage is improved, and the overall efficiency of the fruit processing production line is improved.

[0046] like Figures 1 to 5 and Figure 9 As shown, both peeling rollers 111 are hollow structures, and both peeling rollers 111 are provided with a plurality of evenly distributed through holes 1111 surrounding their axes.

[0047] Since the grapefruit 3 is cleaned before being put into the equipment, a certain amount of moisture inevitably remains on the surface. During the peeling process, if moisture accumulates on the surface of the peeling roller 111, it may affect the peeling effect, or even cause incomplete peeling or cause branches and leaves to adhere to the surface of the grapefruit 3.

[0048] The hollow peeling roller 111 is equipped with multiple through-holes 1111 evenly distributed along its axis. These holes allow moisture to penetrate the surface of the roller 111, preventing moisture from accumulating in the peeling area and ensuring a stable and efficient peeling process. Furthermore, the two peeling rollers 111 rotate in opposite directions, ensuring smooth peeling of the leaves and branches from the top of the grapefruit 3. The through-holes 1111 prevent moisture from causing adhesion.

[0049] The rotation of the peeling roller 111 is preferably powered by a first rotary drive motor 1112, which is fixedly connected to the outer wall of the frame 1. By starting the first rotary drive motor 1112, one of the peeling rollers 111 is driven, and the other peeling roller 111 is driven to rotate relative to it through a synchronous transmission mechanism (not shown in the figure, such as a gear drive or a chain drive, etc.), ensuring that the peeling process is uniform, stable and efficient.

[0050] like Figures 1 to 5 and Figure 9 As shown, a collecting trough 13 for collecting water and branches and leaves is provided below the two stripping rollers 111 , and a spiral blade 131 parallel to the axis of the stripping roller 111 is provided on the collecting trough 13 .

[0051] A collection trough 13 is added below the two peeling rollers 111 to collect the water and leaves produced during the peeling process, preventing the scattering of impurities that could affect the operation of the equipment. To improve the automatic conveying of impurities, spiral blades 131 are positioned within the collection trough 13 along the axis of the peeling rollers 111. These blades are parallel to the axis of the peeling rollers 111 and rotate continuously under the action of a drive mechanism, generating a propulsion force along the axis, allowing the peeled leaves and water to be discharged smoothly.

[0052] During operation, after grapefruit 3 enters the peeling area, its branches and leaves are cleaned by the opposing rotation of peeling rollers 111 and fall into collection trough 13. Simultaneously, the remaining moisture on the surface of grapefruit 3 also drips into collection trough 13. The rotation of spiral blades 131 continuously pushes the moisture and branches and leaves to a side outlet of collection trough 13, where they are discharged through the discharge port or further into subsequent filtration and treatment devices, thus keeping the interior of the equipment clean and reducing the risk of accumulation and clogging.

[0053] By centrally collecting and transporting moisture and fallen leaves, the equipment prevents impurities from accumulating in the stripping area, improving the equipment's continuous operation and reducing the need for manual cleaning. This prevents long-term moisture accumulation that can lead to mold, bacterial growth, and rust, extending equipment life and reducing maintenance costs. Compared to traditional manual cleaning methods, the spiral blade 131 conveying method allows for continuous operation, reducing downtime for maintenance and improving production efficiency.

[0054] like Figures 1 to 7 and Figure 9 As shown, a water collecting trough 222 with an inclined top surface is provided on each of the two mounting plates 22 , and both mounting plates 22 are inclined toward the side of the mounting groove 11 .

[0055] The moisture and impurities generated by the two mounting frames 2 when cleaning the grapefruit 3 will fall from the gaps between the multiple cleaning rollers 21 and land in the water collection tank 222. The setting of the water collection tank 222 ensures that the impurities generated during the peeling process can smoothly enter the water collection tank 222 and will not remain on the surface of the equipment or the peeling area, affecting subsequent processing.

[0056] Impurities and moisture will naturally flow along the slope toward the installation groove 11 and eventually enter the collection groove 13 to achieve automatic discharge.

[0057] The inclined surface guides branches, leaves, and water away from the mounting plate 22 and instead flows toward the water collection trough 222, reducing impurity accumulation, preventing equipment clogging, and improving operational stability. This eliminates the need for additional power, reduces energy consumption, and reduces the frequency of manual cleaning, thereby increasing the automation level of the equipment.

[0058] like Figures 3 to 7 As shown, the mounting frame 2 is a C-shaped structure, and a plurality of cleaning rollers 21 are arranged equidistantly along the outline of the mounting frame 2 . The mounting frame 2 is provided with a second rotary drive motor 23 for synchronously driving all the cleaning rollers 21 to rotate.

[0059] By adopting a C-shaped mounting frame 2, the shape of the grapefruit 3 can be better covered, so that the cleaning roller 21 is in close contact with the surface of the grapefruit 3, thereby improving the cleaning efficiency. The cleaning rollers 21 are arranged equidistantly along the outline of the mounting frame 2 to ensure that the grapefruit 3 can be evenly affected by the cleaning rollers 21 regardless of the direction it enters the cleaning area, avoiding cleaning blind spots. The second rotary drive motor 23 drives all cleaning rollers 21 to rotate synchronously through a transmission mechanism (not shown in the figure, such as a gear drive or chain drive, etc.), ensuring that the rotation speed of the cleaning rollers 21 is consistent, so that the grapefruit 3 can be stably stressed during the cleaning process, and will not shake or jam due to the different rotation speeds of individual cleaning rollers 21.

[0060] like Figures 2 to 5 As shown: the frame 1 is provided with a track 223 extending along its length direction, the mounting plate 22 is slidably arranged on the track 223, and the end of the frame 1 is provided with a linear drive component 224 for driving the mounting plate 22 to move.

[0061] The mounting plate 22 is slidably adjustable along the length of the frame 1 by means of the track 223, the mounting plate 22, and the linear drive assembly 224. The provision of the track 223 ensures that the mounting plate 22 can move smoothly within a fixed range, allowing the mounting frame 2 to accommodate grapefruits 3 of different sizes, thereby preventing poor peeling results due to varying sizes of grapefruits 3.

[0062] The linear drive assembly 224 is preferably configured as a pneumatic cylinder or electric push rod. It is mounted at the end of the frame 1 and connected to the mounting plate 22. This drives the mounting plate 22 to slide along the track 223, thereby adjusting the spacing between the cleaning device and the peeling device to accommodate grapefruits 3 of different sizes. The control system automatically adjusts the force of cleaning and peeling to ensure moderate pressure, preventing damage to the grapefruit 3 due to excessive pressure, and ensuring optimal cleaning and peeling results.

[0063] like Figures 1 to 5 、 Figure 8 and Figure 10 As shown, a push plate 14 that can slide along the axis direction of the cleaning roller 21 is provided on the frame 1 between the two mounting frames 2, and the push plate 14 is inclined.

[0064] The push plate 14 slides along the axis of the cleaning roller 21 to remove the pre-cleaned grapefruit 3 from the cleaning and stripping device and transport it to the packaging unit 12. The tilt of the push plate 14 matches the downward-facing position of the grapefruit 3, ensuring smooth sliding toward the packaging unit 12 and preventing uneven thrust from causing the grapefruit 3 to become stuck or rolling unsteadily. The push plate 14 can be driven by a pneumatic cylinder, electric push rod, or lead screw, automatically pushing the grapefruit 3 out after cleaning, enhancing the automation of the equipment.

[0065] Because the pusher plate 14 can slide along the axis of the cleaning roller 21, it does not affect the cleaning and peeling process. At the same time, it ensures that the grapefruits 3 can be transported to the packaging unit 12 in an orderly manner, improving packaging efficiency, preventing the grapefruits 3 from accumulating in the cleaning device, and improving the equipment's ability to work continuously, thereby avoiding affecting the subsequent processing of the grapefruits 3. This reduces manual operation and improves the intelligence level of the equipment.

[0066] In order to ensure that the grapefruit 3 does not fall when entering between the two mounting frames 2, a retractable blocking bar is provided beside the pushing plate 14, and both ends of the blocking bar are hinged to the two mounting frames respectively.

[0067] like Figures 3 to 7 and Figure 9 As shown, the cleaning roller 21 is provided with a plurality of cleaning ridges 211 that can surround the axis.

[0068] The cleaning ridges 211 on the cleaning roller 21 contact the surface of the pomelo 3 during rotation, providing a physical cleaning effect. These ridges effectively remove dirt, impurities, and moisture from the surface of the pomelo 3, and also help remove residues from the peel, such as small weeds, branches, or dirt. As the cleaning roller 21 rotates, the cleaning ridges 211 remove impurities and moisture from the surface of the pomelo 3, improving cleaning efficiency. This cleaning effect is particularly significant when there is moisture and small particles adhering to the surface of the pomelo 3.

[0069] like Figures 1 to 5 As shown: A fruit packaging method, applied to the above-mentioned fruit packaging equipment with pre-cleaning function, includes the following steps:

[0070] S1. Place the grapefruit 3 with its head facing downward into the V-shaped clamping space of the two mounting frames 2, and use the inclined surfaces of the mounting frames 2 to guide the head of the grapefruit 3 to automatically droop to the area of ​​the mounting groove 11.

[0071] S2. According to the size of the grapefruit 3, the two mounting frames 2 are driven to slide relative to each other along the length direction of the frame 1 to reduce or expand the spacing of the V-shaped clamping space so that the head of the grapefruit 3 is accurately positioned in the contact area between the two peeling rollers 111 in the mounting groove 11.

[0072] S3. Start the cleaning rollers 21 on the mounting frame 2 and control the cleaning rollers 21 on both sides to rotate toward the side away from the mounting groove 11. The cleaning rollers 21 are used to rotate and scrub the surface of the grapefruit 3. At the same time, the rotation of the cleaning rollers 21 is used to generate an upward component force to offset the downward pulling effect of the stripping rollers 111 on the grapefruit 3, thereby preventing the grapefruit 3 from being rolled into the gap between the stripping rollers 111.

[0073] S4. Drive the two stripping rollers 111 to rotate towards each other, and utilize the speed difference and direction difference between the stripping roller 111 and the cleaning roller 21 to gradually tear and peel the top branches of the grapefruit 3 under the coordinated action of the shear force of the stripping roller 111 and the pulling force of the cleaning roller 21.

[0074] S5 , adjusting the sliding distance of the mounting frame 2 to release the grapefruit 3 so that the grapefruit 3 is conveyed to the packaging unit 12 .

[0075] The above embodiments merely represent one or more embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present invention, and such modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A fruit packaging device with a pre-cleaning function, comprising a frame (1) and a mounting slot (11) arranged in the middle of the frame (1), characterized in that: Mounting frames (2) are provided on both sides of the mounting groove (11), and the two mounting frames (2) can slide relative to each other along the length direction of the frame (1) so as to be mirror-symmetrical, and the two mounting frames (2) are tilted to form a V-shaped clamping space; A plurality of cleaning rollers (21) are arranged along the inclined direction of the two mounting frames (2), and the cleaning rollers (21) on the two mounting frames (2) rotate toward a side away from the mounting groove (11); Two stripping rollers (111) are arranged in parallel with the cleaning roller (21) in the installation groove (11), and the two stripping rollers (111) rotate towards each other.

2. The fruit packaging equipment with pre-cleaning function according to claim 1, characterized in that: The bottoms of the two mounting frames (2) are each provided with a mounting plate (22) that can slide along the length direction of the frame (1); the mounting frames (2) are hinged to the mounting plate (22); the mounting plate (22) is provided with an elastic support rod (221) that can support the mounting frames (2); and both mounting frames (2) are provided with a pressure sensor.

3. The fruit packaging equipment with pre-cleaning function according to claim 2, characterized in that: Both peeling rollers (111) are hollow structures, and both peeling rollers (111) are provided with a plurality of evenly distributed through holes (1111) surrounding their axes.

4. The fruit packaging equipment with pre-cleaning function according to claim 3, characterized in that: A collecting trough (13) for collecting water and branches and leaves is provided below the two stripping rollers (111), and a spiral blade (131) parallel to the axis of the stripping rollers (111) is provided on the collecting trough (13).

5. The fruit packaging equipment with pre-cleaning function according to claim 4, characterized in that: Both mounting plates (22) are provided with a water collecting trough (222) with an inclined top surface, and both mounting plates (22) are inclined toward one side of the mounting groove (11).

6. The fruit packaging equipment with pre-cleaning function according to claim 2, characterized in that: The mounting frame (2) is a C-shaped structure, and a plurality of cleaning rollers (21) are arranged equidistantly along the outline of the mounting frame (2). The mounting frame (2) is provided with a second rotary drive motor (23) for synchronously driving all the cleaning rollers (21) to rotate.

7. The fruit packaging equipment with pre-cleaning function according to claim 2, characterized in that: The frame (1) is provided with a track (223) extending along its length direction, the mounting plate (22) is slidably arranged on the track (223), and the end of the frame (1) is provided with a linear drive assembly (224) for driving the mounting plate (22) to move.

8. The fruit packaging equipment with pre-cleaning function according to claim 1, characterized in that: A push plate (14) capable of sliding along the axial direction of the cleaning roller (21) is provided on the frame (1) between the two mounting frames (2), and the push plate (14) is inclined.

9. The fruit packaging equipment with pre-cleaning function according to claim 1, characterized in that: The cleaning roller (21) is provided with a plurality of cleaning ridges (211) that can surround an axis.

10. A fruit packaging method, applied to the fruit packaging equipment with pre-cleaning function according to any one of claims 1 to 9, characterized in that: The following steps are included: S1, placing the grapefruit (3) with its head facing downward into the V-shaped clamping space of the two mounting frames (2), and using the inclined surface of the mounting frames (2) to guide the head of the grapefruit (3) to automatically droop to the area of ​​the mounting groove (11); S2, according to the size of the grapefruit (3), driving the two mounting frames (2) to slide relative to each other along the length direction of the frame (1), reducing or expanding the spacing of the V-shaped clamping space, so that the head of the grapefruit (3) is accurately positioned in the contact area between the two peeling rollers (111) in the mounting groove (11); S3, starting the cleaning rollers (21) on the mounting frame (2), controlling the cleaning rollers (21) on both sides to rotate toward the side away from the mounting groove (11), and rotating and scrubbing the surface of the grapefruit (3) by the cleaning rollers (21), while utilizing the turning direction of the cleaning rollers (21) to generate an upward component force to offset the downward pulling effect of the stripping rollers (111) on the grapefruit (3), thereby preventing the grapefruit (3) from being drawn into the gap between the stripping rollers (111); S4, driving the two stripping rollers (111) to rotate in opposite directions, utilizing the speed difference and direction difference between the stripping roller (111) and the cleaning roller (21), so that the head branches of the grapefruit (3) are gradually torn and stripped under the synergistic effect of the shear force of the stripping roller (111) and the pulling force of the cleaning roller (21); S5. Adjust the sliding distance of the mounting frame (2) to release the grapefruit (3) so that it is transported to the packaging unit (12).

Images