Box assembly, vertical box packing machine and fruit and vegetable sorting device

Abstract

The embodiment of the application relates to the technical field of fruit and vegetable sorting, and particularly relates to a box assembly, a vertical boxing machine and a fruit and vegetable sorting device. The box assembly comprises a box structure and a door body. The bottom of the box structure is provided with an opening and an inclined part, and the bottom of the box structure comprises opposite first and second sides, and the inclined part is arranged in an inclined extension manner from the inner wall of the second side to the center of the opening. The door body can move laterally relative to the box structure along the opening to open or close the opening, and the door body comprises a first edge part, which is located at the second side of the box structure when the door body opens the opening, and is located at the first side of the box structure when the door body closes the opening. Wherein, the lower edge of the inclined part is closer to the center of the opening than the first edge part when the door body opens the opening. According to the application, the inclined part is arranged on one side of the opening in the bottom of the box structure, and cooperates with the opening position of the door body, so that the fruit and vegetable unloaded from the second side can smoothly slide along the inclined part, and the fruit and vegetable is loaded into the fruit and vegetable container without obstruction.

Description

Technical Field

[0001] This application relates to the field of fruit and vegetable sorting technology, and in particular to a box assembly, a vertical boxing machine, and fruit and vegetable sorting equipment. Background Technology

[0002] Vertical boxing machines are one of the pieces of equipment in fruit and vegetable processing lines. They typically consist of a box with a discharge door at the bottom for temporary storage and quantitative unloading of fruits and vegetables. However, in existing technology, the sliding discharge door of the box has a design flaw. When the discharge door is open, part of its structure, due to the limitation of its movement trajectory, will inevitably remain below the bottom opening of the box.

[0003] This structure causes some fruits and vegetables to get stuck or blocked by the remaining door parts during the unloading process, preventing them from falling smoothly and completely into the fruit and vegetable container below. Utility Model Content

[0004] One objective of this application is to provide a box assembly, a vertical boxing machine, and a fruit and vegetable sorting device to solve the technical problem that some fruits and vegetables are stuck in the door structure during unloading of the box on the vertical boxing machine.

[0005] In a first aspect, embodiments of this application provide a housing assembly, including:

[0006] A box structure having an opening and an inclined portion at its bottom, the bottom of the box structure including a first side and a second side opposite to each other, the inclined portion extending obliquely from the inner wall of the second side toward the center of the opening;

[0007] A door, at least partially located below the box structure, is movable relative to the box structure along the opening side to open or close the opening. The door includes a first edge portion located on a second side of the box structure when the door opens the opening, and located on a first side of the box structure when the door closes the opening.

[0008] The lower edge of the inclined portion is closer to the center of the opening than the first edge portion when the door is opened.

[0009] With the above structure, an inclined section is provided on one side of the bottom opening of the box structure, which cooperates with the opening position of the door. Fruits and vegetables unloaded from the second side can slide out smoothly along the inclined section, realizing unobstructed loading of fruits and vegetables into the fruit and vegetable container, effectively reducing the damage rate of fruits and vegetables, and improving the accuracy and reliability of packing.

[0010] Optionally, the box assembly further includes a support roller and a traction mechanism. The support roller is located outside the box structure and close to the second side. The support roller is parallel to the inclined portion. The door is a flexible door and also includes a second edge portion. The traction mechanism includes:

[0011] The first traction member is connected to the first edge portion;

[0012] The second traction member is connected to the second edge portion;

[0013] A drive module is connected to the first traction member and the second traction member respectively. The first traction member is suspended below the opening by the drive module, and the second traction member is suspended on the outer periphery of the box structure by the drive module, with the second edge portion located around the support roller on the outer periphery of the box structure. The door body is tensioned and supported by the first traction member, the second traction member, and the support roller. The drive module is used to simultaneously drive the first traction member to move laterally along the opening and drive the second traction member to move up and down, so that the flexible door opens or closes the opening.

[0014] The aforementioned structure employs a flexible door, with opening and closing controlled by a traction mechanism. The traction mechanism applies lateral tension below the opening via a first traction member, while simultaneously tensioning another portion of the flexible door on the outside of the box structure via a second traction member and support rollers, reducing the space occupied by the box assembly on the vertical packing machine. The drive module synchronously drives the lateral movement of the first traction member and the vertical movement of the second traction member, tensioning and supporting the door to ensure a sufficiently flat bearing surface when closed. During opening, the traction mechanism's movement ensures the door can open or close smoothly and quickly.

[0015] Optionally, the door body is a ring-shaped flexible door body, the door body includes a first strip structure and a second strip structure opposite to each other, the first strip structure being closer to the box structure than the second strip structure;

[0016] Both the first traction member and the second traction member are roller structures. Both the first traction member and the second traction member pass through the door body. The first traction member abuts against the inner side of the first edge portion, and the second traction member abuts against the inner side of the second edge portion. There are two support rollers. The two support rollers are parallel to each other and are spaced apart in an inclined direction that is at a preset angle to the height direction of the box structure.

[0017] The support roller closest to the box structure abuts against the outer side of the first strip structure, and the support roller furthest from the box structure abuts against the inner side of the second strip structure, thereby separating the first strip structure and the second strip structure.

[0018] With the above structure, the door body is configured as a ring-shaped flexible door body, that is, a closed-loop flexible belt, specifically including an inner and outer first belt structure and a second belt structure. Both the traction component and the support rollers adopt roller structures to reduce friction. The first and second traction rollers are inserted inside the ring belt, respectively abutting against the inner sides of both ends of the ring belt. The two parallel support rollers are arranged at an inclined interval; specifically, the support roller closer to the housing abuts against the inner layer of the ring belt, that is, the outer side of the first belt structure, while the support roller farther from the housing abuts against the outer layer of the ring belt, that is, the inner side of the second belt structure, thus separating the inner and outer layers of the ring belt. The combination of the ring-shaped flexible door body and the double support rollers in this embodiment forms a stable, taut door body, ensuring that the door body will not shift or loosen during movement.

[0019] Optionally, at least one of the first traction member, the second traction member, and the support roller is a nylon roller.

[0020] With the above structure, at least one of the first traction component, the second traction component, and the support roller is made of nylon. The high wear resistance, self-lubrication, high strength, and lightweight characteristics of nylon material can significantly reduce the frictional resistance when the door moves, so that the drive module can drive the door to open and close with less energy consumption, and at the same time, the operating noise is also lower.

[0021] Optionally, the angle between the direction in which the first traction member points to the support roller and the direction in which the support roller points to the second traction member is greater than 90°.

[0022] With the above structure, the angle between the direction of the first traction member to the support roller and the direction from the support roller to the second traction member is greater than 90 degrees, which can reduce the contact area between the door and the support roller, thereby making the opening and closing movement of the door smoother.

[0023] Optionally, the driving module includes:

[0024] A rocker arm is hinged to the box structure, and one end of the rocker arm is hinged to the first traction member;

[0025] A drive unit, installed in the box structure and connected to the rocker arm, is used to drive the rocker arm to swing, causing the first traction member to move laterally along the opening;

[0026] The linkage unit includes a third traction member, a fourth traction member, and a pull strap. The pull strap includes a third edge portion and a fourth edge portion opposite to each other. The third traction member is connected to the third edge portion and the other end of the rocker arm, respectively, and is suspended on the top of the box structure by the other end of the rocker arm. The fourth traction member is connected to the fourth edge portion and is located above the second traction member.

[0027] The tensioning unit is connected to the second traction member and the fourth traction member respectively, and is used to provide tension force to the second traction member and the fourth traction member respectively;

[0028] The pull strap is supported and tensioned by the third traction member, the fourth traction member, and one side edge of the top of the box structure. The pull strap is used to follow the other end of the rocker arm and drive the second traction member to move when the drive unit drives the rocker arm to swing, so as to open or close the door opening.

[0029] With the above structure, the box structure is hinged to a rocker arm, and the drive unit can drive the rocker arm to swing. One end of the rocker arm is directly connected to the first traction member, enabling its lateral movement and thus controlling the opening or closing of the door. The other end of the rocker arm is connected to a linkage unit, which includes a pull strap, a third traction member, and a fourth traction member. When the rocker arm swings, its other end drives the pull strap to move, and the pull strap then indirectly drives the second traction member to rise and fall through the tensioning unit, thereby controlling the opening and closing of the side of the door.

[0030] Optionally, the third traction member and the fourth traction member are both roller structures, and the belt is a single-layer structure;

[0031] The third edge portion is fixedly connected to the surface of the pull belt around the third traction member and / or the fourth edge portion is fixedly connected to the surface of the pull belt around the fourth traction member.

[0032] The aforementioned structure, by wrapping the edge of the pull belt around its corresponding traction roller and fixing it to the belt surface, forms a robust connection. The single-layer pull belt makes the overall structure of the linkage unit lighter and simpler, reducing motion inertia and friction. This connection method, where the pull belt edge is wrapped around and fixed to the belt surface, is low-cost, easy to process and assemble, and effectively transmits tension, ensuring that the linkage mechanism can accurately and reliably transmit motion under rocker drive, further improving the practicality and economy of the entire drive module.

[0033] In a second aspect, embodiments of this application provide a vertical packing machine, comprising:

[0034] frame;

[0035] A fruit and vegetable conveyor belt, installed on the frame, is used to transport fruits and vegetables;

[0036] The box assembly as described in any of the above is located at the output end of the fruit and vegetable conveyor belt, and the box assembly is used to receive the fruits and vegetables output by the fruit and vegetable conveyor belt;

[0037] A drive mechanism, mounted on the frame and connected to the housing assembly, is used to drive the housing assembly to move up and down relative to the frame;

[0038] The fruit and vegetable container conveyor belt is located below the box assembly and is used to transport fruit and vegetable containers and position the fruit and vegetable containers below the box assembly so as to cooperate with the box assembly to unload fruits and vegetables into the fruit and vegetable containers.

[0039] Optionally, the frame includes a slide rail extending in the height direction of the frame, and the housing assembly further includes:

[0040] The slider is connected to the slide rail.

[0041] The bracket is connected to the slider, the traction member, and the box structure, respectively.

[0042] Hooks are installed on the box structure, which can be hung on the bracket via the hooks.

[0043] Through the above structure, the cooperation between the slide rail and the slider ensures the stability and positioning accuracy of the box assembly during the lifting process, avoiding swaying. This embodiment uses a bracket and hook mounting method, which facilitates installation and disassembly, or the box structure can be pre-mounted on the bracket via hooks, making it easy for the operator to fix the box structure to the bracket.

[0044] In a third aspect, embodiments of this application provide a fruit and vegetable sorting device, including a vertical packing machine as described in any of the above claims.

[0045] The embodiments of this application can achieve the following technical effects: By setting an inclined part on one side of the bottom opening of the box structure and cooperating with the opening position of the door, fruits and vegetables unloaded from the second side can slide smoothly out along the inclined part, realizing unobstructed loading of fruits and vegetables into the fruit and vegetable container, effectively reducing the damage rate of fruits and vegetables, and improving the accuracy and reliability of packing. Attached Figure Description

[0046] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0047] Figure 1 This is a partial structural diagram of the box body of a vertical packing machine in the prior art;

[0048] Figure 2 This is a schematic diagram of the structure of a vertical packing machine provided in an embodiment of this application;

[0049] Figure 3for Figure 2 A magnified view of detail A in the middle;

[0050] Figure 4 This is a schematic diagram of the first part of the box assembly provided in the embodiments of this application;

[0051] Figure 5 This is a schematic diagram of the second part of the housing assembly provided in the embodiments of this application;

[0052] Figure 6 A schematic diagram of the third part of the housing assembly provided in an embodiment of this application;

[0053] Figure 7 This is a structural schematic diagram of a tensioning unit for a housing assembly provided in an embodiment of this application.

[0054] Label Explanation:

[0055] 1000, Vertical packing machine; 100, Box assembly; 10, Box structure; 11, Opening; 12, Inclined section; 13, First side; 14, Second side; 20, Door; 21, First edge; 22, Second edge; 23, First strip structure; 24, Second strip structure; 30, Support roller; 40, Traction mechanism; 41, First traction component; 42, Second traction component; 43, Drive module; 431, Rocker arm; 432, Drive unit; 433, Linkage unit; 4 331. Third traction component; 4332. Fourth traction component; 4333. Pull belt; 43331. Third edge part; 43332. Fourth edge part; 434. Tensioning unit; 4341. First connecting component; 4342. Second connecting component; 4343. Spring; 4344. Bolt; 4345. Nut; 50. Slider; 60. Bracket; 70. Hook; 200. Frame; 210. Slide rail; 300. Fruit and vegetable conveyor belt; 400. Drive mechanism; 500. Fruit and vegetables. Detailed Implementation

[0056] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as "connected" to another element, it can be directly on the other element, or one or more intermediate elements can exist between them. The terms "upper," "lower," "left," "right," "upper end," "lower end," "top," and "bottom," etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.

[0058] Please see Figure 1 In related technologies, vertical packing machines are one of the pieces of equipment in fruit and vegetable processing lines. They are typically used to temporarily buffer and store sorted and weighed fruits and vegetables 500, and then finally unload them in a fixed quantity into packaging boxes, fruit baskets, or other containers below. A vertical packing machine includes a box body for temporarily storing fruits and vegetables. The box structure 10 has an opening 11 at the bottom and a door 20 for opening or closing the opening 11. During operation, fruits and vegetables enter the box structure. When the preset weight or quantity is reached, the bottom door 20 opens, and the fruits and vegetables 500 fall into the fruit and vegetable container below under gravity, thus completing one packing process.

[0059] However, in order to achieve the opening and closing of the opening 11, the door 20 usually moves in a translational manner. After the unloading door is opened, part of its structure inevitably remains below the bottom opening of the box due to design reasons. This causes some fruits and vegetables 500 to be stuck or blocked by this part of the door 20 structure during the unloading process, and thus cannot fall smoothly into the fruit and vegetable container below.

[0060] To address the aforementioned technical problems, in a first aspect, embodiments of this application provide a box assembly applicable to vertical box packers, and also applicable to equipment requiring downward unloading of materials.

[0061] Please refer to the following: Figures 2 to 4 In some embodiments, the housing assembly 100 includes a housing structure 10 and a door 20. The housing structure 10 has an opening 11 and an inclined portion 12 at its bottom. The bottom of the housing structure 10 includes opposing first sides 13 and second sides 14. The inclined portion 12 extends obliquely from the inner wall of the second side 14 toward the center of the opening 11. The door 20 is at least partially located below the housing structure 10 and is laterally movable relative to the housing structure 10 along the opening 11 to open or close the opening 11. The door 20 includes a first edge portion 21 located on the second side 14 of the housing structure 10 when the door 20 is open, and on the first side 13 of the housing structure 10 when the door 20 is closed. The lower edge of the inclined portion 12 is closer to the center of the opening 11 than the first edge portion 21 when the door 20 is open.

[0062] The structural principle of the box assembly 100 in this embodiment is as follows: an inclined portion 12 is provided on one side of the bottom opening 11 of the box structure 10, which cooperates with the opening position of the door 20. When the door 20 is opened to release the fruits and vegetables 500, its first edge portion 21 moves to the lower side 14 of the box structure 10, and the lower edge of the inclined portion 12 is set to be closer to the center of the opening 11 than the edge of the door 20 in the open state. This ensures that during unloading, the unloading path below the second side 14 is a continuous slope or arc surface without steps formed by the inclined portion 12, rather than a horizontal blocking surface formed by the edge of the door 20.

[0063] Understandably, in this embodiment of the application, by providing an inclined portion 12 on one side of the bottom opening 11 of the box structure 10 and cooperating with the opening position of the door 20, the fruits and vegetables 500 unloaded from the second side 14 can slide smoothly out along the inclined portion 12, realizing the unobstructed loading of fruits and vegetables 500 into the fruit and vegetable container, effectively reducing the damage rate of fruits and vegetables 500, and improving the accuracy and reliability of packing.

[0064] Please refer to the following: Figure 2 and Figure 3 In some embodiments, the housing assembly 100 further includes a support roller 30 and a traction mechanism 40. The support roller 30 is located outside the housing structure 10 and near the second side 14. The support roller 30 is parallel to the inclined portion 12. The door 20 is a flexible door. The door 20 also includes a second edge portion 22. The traction mechanism 40 includes a first traction member 41, a second traction member 42, and a drive module 43.

[0065] The first traction member 41 is connected to the first edge portion 21, and the second traction member 42 is connected to the second edge portion 22. The drive module 43 is connected to the first traction member 41 and the second traction member 42 respectively. The first traction member 41 is suspended below the opening 11 by the drive module 43, and the second traction member 42 is suspended on the outer periphery of the box structure 10 by the drive module 43, so that the second edge portion 22 is located on the outer periphery of the box structure 10 around the support roller 30. The door body 20 is tensioned and supported by the first traction member 41, the second traction member 42 and the support roller 30. The drive module 43 is used to simultaneously drive the first traction member 41 to move laterally along the opening 11 and drive the second traction member 42 to move up and down, so that the flexible door opens or closes the opening 11.

[0066] Understandably, this embodiment employs a flexible door, with opening and closing controlled by a traction mechanism 40. The traction mechanism 40 applies lateral tension below the opening 11 via a first traction member 41, while simultaneously tensioning another portion of the flexible door 20 on the outside of the box structure 10 via a second traction member 42 and a support roller 30, thereby reducing the space occupied by the box assembly 100 on the vertical packing machine. The drive module 43 synchronously drives the lateral movement of the first traction member 41 and the lifting movement of the second traction member 42, tensioning and supporting the door 20 to ensure a sufficiently flat bearing surface when the door 20 is closed. During opening, the traction movement of the traction mechanism 40 ensures that the door 20 can open or close smoothly and quickly.

[0067] In other embodiments, the door 20 can be a rigid plate-like structure. For example, the bottom of the box structure 10 can be provided with a groove that can accommodate the edge of the door 20 so that the door 20 can slide laterally along the opening 11 to open and close the opening 11.

[0068] Please refer to the following: Figure 5 and Figure 6 In some embodiments, the door body 20 is a ring-shaped flexible door body, and the door body 20 includes a first strip structure 23 and a second strip structure 24 opposite to each other, with the first strip structure 23 being closer to the box structure 10 than the second strip structure 24.

[0069] Both the first traction member 41 and the second traction member 42 are roller structures. Both the first traction member 41 and the second traction member 42 are inserted through the door body 20. The first traction member 41 abuts against the inner side of the first edge portion 21, and the second traction member 42 abuts against the inner side of the second edge portion 22. There are two support rollers 30. The two support rollers 30 are parallel to each other and are spaced apart in an inclined direction at a preset angle with respect to the height direction of the box structure 10.

[0070] The support roller 30 closest to the box structure 10 abuts against the outer side of the first strip structure 23, and the support roller 30 furthest from the box structure 10 abuts against the inner side of the second strip structure 24, so as to separate the first strip structure 23 and the second strip structure 24.

[0071] Understandably, the door body 20 is configured as a ring-shaped flexible door body, that is, a closed-loop flexible belt, specifically including an inner and outer first belt structure 23 and a second belt structure 24. Both the traction member and the support roller 30 adopt roller structures to reduce friction. The first and second traction rollers pass through the inside of the ring belt, respectively abutting against the inner sides of both ends of the ring belt. The two parallel support rollers 30 are arranged at an inclined interval. Specifically, the support roller 30 closer to the box structure 10 abuts against the inner layer of the ring belt, that is, the outer side of the first belt structure 23, while the support roller 30 farther from the box abuts against the outer layer of the ring belt, that is, the inner side of the second belt structure 24, thus separating the inner and outer layers of the ring belt. The cooperation of the ring-shaped flexible door body 20 and the double support rollers 30 in this embodiment forms a stable and taut door body 20, ensuring that the door body 20 will not shift or loosen during movement. More importantly, by separating the inner and outer strip structures with two support rollers 30, friction and wear between the two strip structures of the door body 20 itself are effectively avoided, significantly improving the durability and service life of the entire door body 20 and ensuring the stability of long-term operation.

[0072] In some embodiments, at least one of the first traction member 41, the second traction member 42, and the support roller 30 is a nylon roller.

[0073] Understandably, at least one of the first traction component 41, the second traction component 42, and the support roller 30 is made of nylon. The high wear resistance, self-lubricating properties, high strength, and lightweight characteristics of nylon material can significantly reduce the frictional resistance of the door 20 during movement, so that the drive module 43 can drive the door 20 to open and close with less energy consumption, and the operating noise is also lower.

[0074] Please review Figure 6 In some embodiments, the angle α between the direction in which the first traction member 41 points to the support roller 30 and the direction in which the support roller 30 points to the second traction member 42 is greater than 90°.

[0075] Understandably, the angle between the direction of the first traction member 41 towards the support roller 30 and the direction from the support roller 30 towards the second traction member 42 is greater than 90 degrees. This reduces the contact area between the door body 20 and the support roller 30, thus making the opening and closing motion of the door body 20 smoother. Optionally, the angle between the direction of the first traction member 41 pointing towards the support roller 30 and the direction of the support roller 30 pointing towards the second traction member 42 is at most 120°.

[0076] Please refer to the following: Figure 3 , Figure 5 and Figure 6In some embodiments, the drive module 43 includes a rocker arm 431, a drive unit 432, a linkage unit 433, and a tensioning unit 434. The rocker arm 431 is hinged to the box structure 10, and one end of the rocker arm 431 is hinged to a first traction member 41. The drive unit 432 is mounted on the box structure 10 and connected to the rocker arm 431, for moving the first traction member 41 laterally along the opening 11 by driving the rocker arm 431 to swing. The linkage unit 433 includes a third traction member 4331, a fourth traction member 4332, and a pull strap 4333. The pull strap 4333 includes opposing third edge portions 43331 and fourth edge portions 43332. The third traction member 4331 is connected to the third edge portion 43331 and the other end of the rocker arm 431, and is suspended above the box structure 10 by the other end of the rocker arm 431. The fourth traction member 4332 is connected to the fourth edge portion 43332 and is located above the second traction member 42. The tensioning unit 434 is connected to the second traction member 42 and the fourth traction member 4332 respectively, and is used to provide tension force to the second traction member 42 and the fourth traction member 4332 respectively.

[0077] The pull strap 4333 is supported and tensioned by the third traction member 4331, the fourth traction member 4332 and one side edge of the top of the box structure 10. The pull strap 4333 is used to follow the other end of the rocker arm 431 and drive the second traction member 42 to move when the drive unit 432 drives the rocker arm 431 to swing, so as to open or close the opening 11 of the door body 20.

[0078] Understandably, the box structure 10 is hinged to a rocker arm 431, and a drive unit 432, such as a cylinder or electric push rod, can drive the rocker arm 431 to swing. One end of the rocker arm 431 is directly connected to the first traction member 41, enabling its lateral movement, thereby controlling the opening or closing of the opening 11 of the door 20. The other end of the rocker arm 431 is connected to a linkage unit 433, which includes a pull strap 4333, a third traction member 4331, and a fourth traction member 4332. When the rocker arm 431 swings, its other end drives the pull strap 4333 to move, and the pull strap 4333 then indirectly drives the second traction member 42 to rise and fall through the tensioning unit 434, thereby controlling the opening and closing of the side of the door 20. Through the above-described configuration, the embodiment of this application simplifies the drive system, making the entire drive system more robust, reliable, and easy to maintain.

[0079] For example, the drive unit 432 includes a cylinder, the main body of which is hinged to the box structure 10. The piston rod of the cylinder is hinged to the rocker arm 431. The extension and retraction of the piston rod can cause the rocker arm 431 to swing relative to the box structure 10, thereby pulling the door 20 to move laterally along the opening 11 to open or close the opening 11. The pull strap 4333 can be a belt or a textile belt, etc.

[0080] Please see Figure 7 In some embodiments, the tensioning unit 434 includes a first connector 4341, a second connector 4342, a spring 4343, a bolt 4344, and a nut 4345. Both the first connector 4341 and the second connector 4342 are L-shaped. Each end of the second traction member 42 is connected to a corresponding first connector 4341, and each end of the fourth traction member 4332 is connected to a corresponding second connector 4342. The closest first connector 4341 and second connector 4342 are provided with mutually aligned through holes and are sequentially inserted by the same bolt 4344. The end of the bolt 4344 is threadedly connected by a nut 4345. The spring 4343 is sleeved on the bolt 4344, with one end of the spring abutting the bolt head and the other end abutting the first connector 4341; or one end of the spring 4343 abuts the nut 4345 and the other end abuts the second connector 4342.

[0081] Understandably, when the pull strap 4333 and the flexible door 20 undergo irreversible deformation, the elastic force applied by the spring 4343 on the bolt 4344 causes the first connector 4341 and the second connector 4342 to move closer to each other, so that the second traction member 42 and the fourth traction member 4332 move closer to each other, thereby achieving self-tensioning of the door 20 and the pull strap 4333. When the door 20 closes the opening 11, it can tighten and restrict the fruits and vegetables 500 from running out of the gap between the bottom of the box structure 10 and the door 20, thus ensuring the stability of the packing process.

[0082] In some embodiments, the third traction member 4331 and the fourth traction member 4332 are both roller structures, and the pull belt 4333 is a single-layer structure. The third edge portion 43331 is wrapped around the third traction member 4331 and fixedly connected to the belt surface of the pull belt 4333, and / or the fourth edge portion 43332 is wrapped around the fourth traction member 4332 and fixedly connected to the belt surface of the pull belt 4333.

[0083] Understandably, by wrapping the edge of the pull belt 4333 around its corresponding traction roller and fixing it to the belt surface of the pull belt 4333, a strong connection is formed. The single-layer pull belt 4333 makes the overall structure of the linkage unit 433 lighter and simpler, reducing motion inertia and friction. This connection method of wrapping and fixing the edge of the pull belt 4333 to the belt surface is low-cost, easy to process and assemble, and effectively transmits tension, ensuring that the linkage mechanism can accurately and reliably transmit motion under the drive of the rocker arm 431, further improving the practicality and economy of the entire drive module 43. For example, the edge of the pull belt 4333 and the belt surface of the pull belt 4333 can be fixed to each other by welding or sewing.

[0084] Please refer to the following: Figure 2 and Figure 3 In a second aspect, embodiments of this application provide a vertical boxing machine 1000, including a frame 200, a fruit and vegetable conveyor belt 300, a box assembly 100 as described in the above embodiments, a drive mechanism 400, and a fruit and vegetable container conveyor belt (not shown in the drawings). The fruit and vegetable conveyor belt 300 is mounted on the frame 200 and is used to transport fruits and vegetables 500. The box assembly 100 is located at the output end of the fruit and vegetable conveyor belt 300 and is used to receive the fruits and vegetables 500 output by the fruit and vegetable conveyor belt 300. The drive mechanism 400 is mounted on the frame 200 and connected to the box assembly 100, and is used to drive the box assembly 100 to move up and down relative to the frame 200. The fruit and vegetable container conveyor belt is located below the box assembly 100 and is used to transport fruit and vegetable containers and position the fruit and vegetable containers below the box assembly 100 to cooperate with the box assembly 100 in unloading the fruits and vegetables 500 into the fruit and vegetable containers, which can be fruit baskets, fruit boxes, or trays, etc.

[0085] Understandably, by integrating the box assembly 100 with unobstructed unloading function into the vertical boxing machine 1000, this application not only solves the fundamental problem of fruits and vegetables 500 getting stuck during unloading, but also allows the box assembly 100 to descend to a position close to the bottom of the fruit and vegetable container before opening the door 20 for unloading. This significantly shortens the falling distance of the fruits and vegetables 500, effectively preventing damage caused by excessive drops. It is particularly suitable for handling fragile fruits and vegetables 500, thereby significantly improving the quality and efficiency of automated boxing.

[0086] In some embodiments, the drive structure includes a motor and a tape reel, which are mounted on the frame 200 and located above the housing assembly 100. The motor is connected to the tape reel, and the rotation of the tape reel's axis is controlled by the motor. The lead end of the tape reel is connected to the housing assembly 100. The motor can drive the winding and unwinding of the tape, thereby causing the housing assembly 100 to move vertically relative to the frame 200. In other embodiments, the drive mechanism 400 may also employ a cylinder, electric cylinder, or other drive mechanism to achieve the vertical movement of the housing assembly 100; no limitation is made here.

[0087] Please review Figure 3 In some embodiments, the frame 200 includes a slide rail 210 extending along the height of the frame 200. The housing assembly 100 also includes a slider 50, a bracket 60, and a hook 70. The slider 50 is connected to the slide rail 210. The bracket 60 is connected to the slider 50, the drive mechanism 400, and the housing structure 10. The hook 70 is mounted on the housing structure 10, allowing the housing structure 10 to be hung on the bracket 60 via the hook 70.

[0088] Understandably, the cooperation between the slide rail 210 and the slider 50 ensures the stability and positioning accuracy of the box assembly 100 during lifting and lowering, avoiding swaying. This embodiment employs a mounting method using the bracket 60 and hook 70, allowing the box structure 10 to be easily detached from the lifting mechanism. In one embodiment, the box structure 10 and the bracket 60 are fixed together with screws, and the hook 70 allows the box structure 10 to be pre-mounted on the bracket 60, facilitating the operator to secure the box structure 10 and the bracket 60 with screws.

[0089] In a third aspect, embodiments of this application provide a fruit and vegetable sorting device, including a vertical packing machine 1000 as described above.

[0090] It is understood that by applying the vertical boxing machine 1000 having the box assembly 100 of the above embodiment to the fruit and vegetable sorting equipment, this application embodiment helps to ensure the accuracy of fruit and vegetable sorting and reduce the amount of loss during the fruit and vegetable packing process.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail; although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A housing assembly, characterized in that, include: A box structure having an opening and an inclined portion at its bottom, the bottom of the box structure including a first side and a second side opposite to each other, the inclined portion extending obliquely from the inner wall of the second side toward the center of the opening; A door, at least partially located below the box structure, is movable relative to the box structure along the opening side to open or close the opening. The door includes a first edge portion located on a second side of the box structure when the door opens the opening, and located on a first side of the box structure when the door closes the opening. The lower edge of the inclined portion is closer to the center of the opening than the first edge portion when the door is opened.

2. The housing assembly according to claim 1, characterized in that, It also includes a support roller and a traction mechanism. The support roller is located outside the box structure and close to the second side. The support roller is parallel to the inclined portion. The door body is a flexible door body and also includes a second edge portion. The traction mechanism includes: The first traction member is connected to the first edge portion; The second traction member is connected to the second edge portion; A drive module is connected to the first traction member and the second traction member respectively. The first traction member is suspended below the opening by the drive module, and the second traction member is suspended on the outer periphery of the box structure by the drive module, with the second edge portion located around the support roller on the outer periphery of the box structure. The door body is tensioned and supported by the first traction member, the second traction member, and the support roller. The drive module is used to simultaneously drive the first traction member to move laterally along the opening and drive the second traction member to move up and down, so that the flexible door opens or closes the opening.

3. The housing assembly according to claim 2, characterized in that, The door is a ring-shaped flexible door, which includes a first strip structure and a second strip structure that are opposite each other. The first strip structure is closer to the box structure than the second strip structure. Both the first traction member and the second traction member are roller structures. Both the first traction member and the second traction member pass through the door body. The first traction member abuts against the inner side of the first edge portion, and the second traction member abuts against the inner side of the second edge portion. There are two support rollers. The two support rollers are parallel to each other and are spaced apart in an inclined direction that is at a preset angle to the height direction of the box structure. The support roller closest to the box structure abuts against the outer side of the first strip structure, and the support roller furthest from the box structure abuts against the inner side of the second strip structure, thereby separating the first strip structure and the second strip structure.

4. The housing assembly according to claim 3, characterized in that, At least one of the first traction member, the second traction member, and the support roller is a nylon roller.

5. The housing assembly according to claim 2, characterized in that, The angle between the direction in which the first traction member points to the support roller and the direction in which the support roller points to the second traction member is greater than 90°.

6. The housing assembly according to claim 2, characterized in that, The driving module includes: A rocker arm is hinged to the box structure, and one end of the rocker arm is hinged to the first traction member; A drive unit, installed in the box structure and connected to the rocker arm, is used to drive the rocker arm to swing, causing the first traction member to move laterally along the opening; The linkage unit includes a third traction member, a fourth traction member, and a pull strap. The pull strap includes a third edge portion and a fourth edge portion opposite to each other. The third traction member is connected to the third edge portion and the other end of the rocker arm, respectively, and is suspended on the top of the box structure by the other end of the rocker arm. The fourth traction member is connected to the fourth edge portion and is located above the second traction member. The tensioning unit is connected to the second traction member and the fourth traction member respectively, and is used to provide tension force to the second traction member and the fourth traction member respectively; The pull strap is supported and tensioned by the third traction member, the fourth traction member, and one side edge of the top of the box structure. The pull strap is used to follow the other end of the rocker arm and drive the second traction member to move when the drive unit drives the rocker arm to swing, so as to open or close the door opening.

7. The housing assembly according to claim 6, characterized in that, Both the third and fourth traction components are roller structures, and the belt is a single-layer structure. The third edge portion is fixedly connected to the surface of the pull belt around the third traction member and / or the fourth edge portion is fixedly connected to the surface of the pull belt around the fourth traction member.

8. A vertical packing machine, characterized in that, include: frame; A fruit and vegetable conveyor belt, installed on the frame, is used to transport fruits and vegetables; The box assembly as described in any one of claims 1-7 is located at the output end of the fruit and vegetable conveyor belt, and the box assembly is used to receive the fruits and vegetables output by the fruit and vegetable conveyor belt; A drive mechanism, mounted on the frame and connected to the housing assembly, is used to drive the housing assembly to move up and down relative to the frame; The fruit and vegetable container conveyor belt is located below the box assembly and is used to transport fruit and vegetable containers and position the fruit and vegetable containers below the box assembly so as to cooperate with the box assembly to unload fruits and vegetables into the fruit and vegetable containers.

9. The vertical packing machine according to claim 8, characterized in that, The frame includes a slide rail extending along the height of the frame, and the housing assembly further includes: The slider is connected to the slide rail. The bracket is connected to the slider, the drive mechanism, and the box structure, respectively. Hooks are installed on the box structure, which can be hung on the bracket via the hooks.

10. A fruit and vegetable sorting device, characterized in that, Including the vertical packing machine as described in claim 8 or 9.

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