An automatic bagging device for hot-cut vertical fruit and vegetable mesh bags

Abstract

This utility model discloses an automatic bagging device for vertical fruit and vegetable mesh bags with heat cutting capability, including a mesh bag conveying module, a guiding expansion module, a heat-sealing and cutting module, and a control and processing module. The mesh bag conveying module conveys the fruit and vegetable mesh bags upwards to the guiding expansion module, which guides the opening of the mesh bag and gradually expands it. After the fruit and vegetable mesh bag is wrapped, the control and processing module issues a command to activate the heat-sealing and cutting module to melt and cut the mesh bag. This utility model solves the technical problems of existing technologies, such as large equipment size, low mesh bag adaptability, low bagging efficiency, complex and difficult-to-maintain mechanism, and easy damage to fruit. This utility model achieves the technical effects of high-quality cutting of fruit and vegetable mesh bags, significantly improved fruit and vegetable bagging efficiency, high adaptability, damage-free packaging of fruits and vegetables, and a compact and reliable structure.

Description

Technical Field

[0001] This utility model relates to the field of agricultural automation and food packaging machinery technology, specifically to an automatic bagging device for hot-cut vertical fruit and vegetable mesh bags for spherical fruits and vegetables. Background Technology

[0002] Currently, bagging spherical fruits and vegetables is mostly done manually or semi-automatically. Manual bagging is inefficient, labor-intensive, and produces inconsistent packaging quality. Existing semi-automatic bagging equipment is largely limited by the size of the fruits and vegetables, unable to simultaneously handle fruits of different sizes, and suffers from problems such as limited applicability, easy loosening, high material costs, or slow speed. Existing technology includes Chinese invention patent CN119404700A, which discloses a "large-capacity bag storage and delivery mechanism for a trellis fruit and vegetable bagging robot end effector." This device uses a rotating mechanism to drive a bag storage wheel to rotate, and then a friction wheel feeds the bag to achieve bagging. However, the bagging method is still not stable enough, cannot bag most fruits and vegetables, and suffers from technical bottlenecks such as complex mechanisms, easy mechanical damage to the fruit, and a tendency to miss or jam. Utility Model Content

[0003] The technical problem to be solved by this utility model is that existing fruit and vegetable bagging devices are prone to causing mechanical damage to fruits and vegetables.

[0004] The technical problem that this utility model aims to solve further is that the existing fruit and vegetable bagging devices are not stable enough and cannot adapt to fruit and vegetable mesh bags made of various materials.

[0005] To achieve the above objectives, the present invention is implemented using the following technical solution.

[0006] An automatic bagging device for vertical hot-cut fruit and vegetable net bags includes: a guide expansion module including a guide cone, the guide cone being a cone with a larger upper part and a smaller lower part, the lower end of the guide cone being connected to a supporting steel pipe; a net bag conveying module: disposed on both sides of the inclined surface at the lower end of the guide cone, used to convey the fruit and vegetable net bags to the upper end of the guide cone; and a heat-sealing and cutting module including a hot-cutting blade mechanism, the hot-cutting blade mechanism being disposed above the guide cone, used to hot-cut the fruit and vegetable net bags conveyed to the upper end of the guide cone, the hot-cutting blade mechanism being mounted on a blade driving device.

[0007] The aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device includes a mesh bag conveying module comprising a dual active friction wheel mechanism. The dual active friction wheel mechanism is symmetrically arranged on both sides of the inclined surface at the lower end of the guide cone. The dual active friction wheel mechanism is driven by a drive device to convey the fruit and vegetable mesh bags upward.

[0008] In the aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device, the dual active friction wheel mechanism is fixed to the frame-type support mechanism in parallel by two support frames.

[0009] In the aforementioned automatic bagging device for hot-cut vertical fruit and vegetable mesh bags, the friction wheel is a polyurethane-coated wheel.

[0010] The aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device includes a frame-type support mechanism comprising a support profile, an external threaded flange, a support steel pipe, and corner brackets. The top of the support profile is provided with a rectangular frame, and the support profile and the rectangular frame are fixed by nuts and bolts set in the corner brackets. The top of the support steel pipe passes through the gap in the rectangular frame, and the bottom thread of the support steel pipe is threaded to the external threaded flange thread.

[0011] In the aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device, the diameter of the guide cone inlet end is smaller than the diameter of the outlet end, and the diameter of the outlet end is adapted to the bottom contour of the fruit and vegetable to be wrapped.

[0012] The aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device has a threaded end at the inlet of the guide cone that matches the upper thread of the support steel pipe for fixing to the support steel pipe.

[0013] The aforementioned hot-cut vertical fruit and vegetable mesh bag automatic bagging device has a guide layer on the outer wall of the guide cone, which is used to guide the fruit and vegetable mesh bags to be transported upward through the mesh bag conveying module.

[0014] The aforementioned automatic bagging device for vertical fruit and vegetable mesh bags includes a heat-sealing and cutting module comprising a roller, a connector, a linear slider guide rail, a heat-cutting blade mechanism, a cam mechanism, and a coupling. The coupling is connected to the cam mechanism and a drive motor, respectively, to provide rotational driving force for the cam mechanism. The cam mechanism is connected to the roller via a transmission connection. The roller and the heat-cutting blade mechanism are fixed together by a vertical connector. The linear slider guide rail is fixed to the inner wall of the housing by a support plate and a 90° angle iron. Simultaneously, the linear slider guide rail is connected to the heat-cutting blade mechanism through a sliding groove, enabling the heat-cutting blade to perform horizontal reciprocating motion on the linear slider guide rail.

[0015] The aforementioned hot-cutting vertical fruit and vegetable mesh bag automatic bagging device includes a cutting blade mechanism comprising a slider, a blade holder on the slider, and a blade fixed on the blade holder; a heating element is integrated inside the blade or close to the blade body, used to heat the blade to a preset temperature; the slider is set in the sliding groove of the linear slider guide rail, and a tension spring is connected between the slider and the support plate at one end of the linear slider guide rail.

[0016] The beneficial effects of this utility model are as follows: This utility model uses a heat-cutting vertical fruit and vegetable mesh bag automatic bagging device, which combines a guide expansion module, a mesh bag conveying module, and a heat-sealing and cutting module through a set structure. The structure is stable and can use a mechanical claw to grab the fruit and vegetables and place them above the center point of the guide cone. During the entire bagging process, there is no need to apply complex mechanical force or twisting action to the fruit and vegetables, which avoids abrasions to the fruit and vegetables and improves their marketability.

[0017] The hot cutting action of this utility model is driven by the cam and roller of the cam slider mechanism to make reciprocating motion on the linear slider guide rail. It has a fast response speed and short motion cycle, which significantly improves the efficiency compared with the traditional rotary bagging and is easy to integrate into the automated production line.

[0018] This invention integrates a heating unit into the cutter for hot-melt cutting, resulting in fast cutting speed for fruit and vegetable mesh bags. It is less prone to obstruction and slippage, avoiding the problem of traditional ordinary blades being unable to cut through the bags, and enabling high-quality segmentation of fruit and vegetable mesh bags.

[0019] This invention is applicable to fruit and vegetable mesh bags made of various materials, is not limited by the elasticity of fruit and vegetable mesh bags, and has good versatility. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the main view of the automatic bagging device for hot-cut vertical fruit and vegetable mesh bags in Example 1;

[0021] Figure 2 This is a bottom view of the automatic bagging device for the hot-cut vertical fruit and vegetable mesh bag in Example 1.

[0022] Figure 3 This is an enlarged schematic diagram of the hot-cutting blade structure in the automatic bagging device for hot-cutting vertical fruit and vegetable mesh bags in Example 1;

[0023] Figure 4 This is an enlarged schematic diagram of the linear slider guide rail structure in the automatic bagging device for hot-cut vertical fruit and vegetable net bags in Example 1;

[0024] Figure 5 This is a side-view perspective three-dimensional structural diagram of the automatic bagging device for hot-cut vertical fruit and vegetable mesh bags of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 1-External threaded flange; 2-Vertical support plate; 3-Steel pipe; 4-Bolt and nut; 5-Angle bracket; 6-Support frame; 7-Double active friction wheel; 8-Roller; 9-Connector; 10-Support plate; 11-Tension spring; 12-Guide cone; 13-Linear slider guide rail; 14-Cam mechanism; 15-Coupling; 16-Drive motor; 17-90° triangle iron; 18-Right angle retainer; 19-Box; 20-Blade; 21-Tool holder; 22-Slider. Detailed Implementation

[0027] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1: This example provides an automatic bagging device for heat-cutting vertical fruit and vegetable mesh bags. The front view and bottom view of the device are shown in the attached figures. Figure 1 and attached Figure 2 As shown.

[0029] Includes: Guide expansion module: including guide cone 12, the guide cone 12 is a cone that is larger at the top and smaller at the bottom, and the lower end of the guide cone 12 is connected to a supporting steel pipe 3;

[0030] Net bag conveying module: Located on both sides of the inclined surface at the lower end of the guide cone 12, used to convey the fruit and vegetable net bags to the upper end of the guide cone 12;

[0031] Heat-sealing and cutting module: includes a heat-cutting blade mechanism, which is located above the guide cone 12 and is used to heat-cut the fruit and vegetable mesh bag that is transported to the top of the guide cone 12. The heat-cutting blade mechanism is mounted on the blade drive device.

[0032] The mesh bag conveying module includes a dual active friction wheel mechanism 7, which is symmetrically arranged on both sides of the inclined surface at the lower end of the guide cone 12. The dual active friction wheel mechanism 7 is driven by a drive device to convey the fruit and vegetable mesh bags upward.

[0033] The friction wheels in the dual active friction wheel mechanism 7 are polyurethane coated wheels, which are used to increase the friction force during the upward transmission of the mesh bag.

[0034] The frame-type support mechanism includes a support profile 2, an external threaded flange 1, a support steel pipe 3, and an angle bracket 5. The top of the support profile 2 is provided with a rectangular frame, and the support profile 2 and the rectangular frame are fixed by nuts and bolts 4 provided on the angle bracket 5. The top of the support steel pipe 3 passes through the gap in the rectangular frame, and the bottom thread of the support steel pipe 3 is threaded to the threaded opening of the external threaded flange 1.

[0035] The diameter of the inlet end of the guide cone 12 is smaller than the diameter of the outlet end, and the diameter of the outlet end is adapted to the bottom contour of the fruit and vegetables to be wrapped.

[0036] The inlet end of the guide cone 12 is provided with a threaded opening that matches the upper thread of the support steel pipe 3, for fixing to the support steel pipe 3.

[0037] The outer wall of the guide cone 12 is provided with a guide layer for guiding the fruit and vegetable net bag to be transported upward through the net bag conveying module.

[0038] The heat-sealing and cutting module includes a roller 8, a connector 9, a linear slider guide rail 13, a hot-cutting blade mechanism 20, a cam mechanism 14, and a coupling 15. The coupling 15 is connected to the cam mechanism 14 and the drive motor 16 respectively, and is used to provide rotational driving force for the cam mechanism 14. The cam mechanism 14 is connected to the roller 8 for transmission. The roller 8 and the hot-cutting blade mechanism 20 are fixed by the vertical connector 9. The linear slider guide rail 13 is fixed to the inner wall of the housing 19 by the support plate 10 and the 90° triangle iron 17. At the same time, the linear slider guide rail 13 is connected to the hot-cutting blade mechanism through the sliding groove, so as to realize the horizontal reciprocating motion of the hot-cutting blade on the linear slider guide rail 13.

[0039] The cutting blade mechanism includes a slider, on which a blade holder 21 is provided, and a blade 20 is fixed on the blade holder 21; a heating element is integrated inside the blade or close to the blade body, used to heat the blade to a preset temperature; the slider is set in the sliding groove of the linear slider guide rail 13, and a tension spring 11 is connected between the slider and the support plate 10 at one end of the linear slider guide rail.

[0040] It also includes a control processing module, which includes a PLC controller. The PLC controller is electrically connected to both the mesh bag conveying module and the heat sealing and cutting module. The PLC controller controls the start and stop of the drive device 1 of the dual active friction wheel mechanism 7 according to preset start and stop times. The control process can employ any control method in the prior art.

[0041] The PLC controller controls the start and stop of the drive motor of the heat sealing and cutting module according to the preset start and stop time. The control process can adopt any control method in the prior art.

[0042] The working process of the automatic bagging device for vertical fruit and vegetable net bags in this embodiment is as follows: the fruit and vegetable net bags are transported to the guide expansion module through the net bag conveying module. During the transport of the fruit and vegetable net bags, the guide expansion module makes the opening of the net bag larger and larger, thereby accurately expanding and placing it under the fruit and vegetables to be wrapped. After the fruit and vegetables are in place, the net bag conveying module continues to transport the net bag, making the net bag move upward and completely wrap the fruit and vegetables. The heat sealing and cutting module is then activated, driving the hot cutting blade equipped with heating elements to move rapidly horizontally and complete the cutting action at the predetermined position of the fruit and vegetable net bag. The cut fruit and vegetable net bag falls with the fruit and vegetables to complete the packaging, while the lower half of the net bag is re-clamped by the net bag conveying module to prepare for the next fruit and vegetable wrapping.

[0043] In this embodiment, a guide cone 12 suitable for the size of tomatoes is selected and connected to a steel pipe 3. A certain amount of mesh bags are inserted into the steel pipe 3 and then fixed to the external thread flange 1. A mechanical gripper picks up a ripe tomato and places it about 100mm above the center point of the guide cone 12. The PLC control system controls the dual active friction wheels 7 to transport the mesh bag upward through friction. The guide cone expands the diameter of the mesh bag, and the mechanical gripper then wraps around the tomato. On the other side, the drive motor 16 drives the cam 14 to rotate continuously through the coupling 15. As the mesh bag completely wraps the tomato, the cam mechanism 14 pushes the roller 8 to the left, which in turn drives the slider on the linear guide rail to the left. This causes the hot cutter 20 to cut the mesh bag horizontally to the left, separating the mesh bag wrapping the tomato from the replenishment mesh bag. The mechanical gripper then places the bagged tomato into a collection basket on one side. When the first cut of the mesh bag is completed, the cam mechanism 14 pushes the roller 8 to the leftmost extreme position. When a new tomato is placed in a new mesh bag, the linear slider guide 13 will move to the right under the action of the tension spring 11, realizing the second cutting and separation of the mesh bag, thus realizing the second automated bagging.

[0044] In addition, this device can bag fruits and vegetables of different sizes or shapes by changing the size of the guide cone 12 and the vertical distance between the robotic arm and the top of the guide cone.

[0045] Example 2: Based on the automatic bagging device for hot-cut vertical fruit and vegetable mesh bags provided in Example 1, this example provides a method for applying the device to fruit and vegetable mesh bags of different materials.

[0046] The aforementioned dual active friction wheel mechanism 7 is fixed to the frame-type support mechanism in parallel by two support frames 6.

[0047] In this embodiment, by loosening the fixing screws between the support frame 6 and the frame bracket mechanism in the dual active friction wheel mechanism 7, the support frame 6 can be horizontally and movably adjusted on the frame bracket mechanism, thereby changing the size of the gap between the dual active friction wheels 7. Net bags of different material thicknesses are then placed on the guide cone 12, and the guide cone 12 is clamped by the dual active friction wheels 7. The rotation of the dual active friction wheels 7 provides friction to transport the net bags upward.

Claims

1. An automatic bagging device for heat-cutting vertical fruit and vegetable mesh bags, characterized in that, include: Guide expansion module: includes guide cone (12), the guide cone (12) is a cone that is larger at the top and smaller at the bottom, and the lower end of the guide cone (12) is connected to a supporting steel pipe (3). Net bag conveying module: set on both sides of the inclined surface at the lower end of the guide cone (12), used to convey the fruit and vegetable net bags to the upper end of the guide cone (12); Heat-sealing and cutting module: includes a heat-cutting blade mechanism, which is located above the guide cone (12) and is used to heat-cut the fruit and vegetable mesh bag that is transported to the top of the guide cone (12). The heat-cutting blade mechanism is mounted on the blade drive device.

2. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 1, characterized in that, The mesh bag conveying module includes a dual active friction wheel mechanism (7), which is symmetrically arranged on both sides of the inclined surface at the lower end of the guide cone (12). The dual active friction wheel mechanism (7) is driven by a drive device to convey the fruit and vegetable mesh bag upward.

3. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 2, characterized in that, The dual active friction wheel mechanism (7) is fixed to the frame bracket mechanism in parallel by two support frames (6).

4. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 2, characterized in that, The friction wheel is made of polyurethane coated wheel.

5. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 3, characterized in that, The frame support mechanism includes a support profile (2), an external threaded flange (1), a support steel pipe (3), and a corner bracket (5). The support profile (2) has a rectangular frame on top. The support profile (2) and the rectangular frame are fixed by nuts and bolts (4) on the corner bracket (5). The top of the support steel pipe (3) passes through the gap in the rectangular frame, and the bottom thread of the support steel pipe (3) is threaded to the threaded opening of the external threaded flange (1).

6. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 1, characterized in that, The diameter of the inlet end of the guide cone (12) is smaller than the diameter of the outlet end, and the diameter of the outlet end is adapted to the bottom contour of the fruit and vegetable to be wrapped.

7. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 1, characterized in that, The inlet end of the guide cone (12) is provided with a threaded opening that is compatible with the upper thread of the support steel pipe (3) for fixing to the support steel pipe (3).

8. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 6, characterized in that, The outer wall of the guide cone (12) is provided with a guide layer for guiding the fruit and vegetable net bag to be transported upward through the net bag conveying module.

9. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 1, characterized in that, The heat-sealing and cutting module includes a roller (8), a connector (9), a linear slider guide rail (13), a heat-cutting blade mechanism, a cam mechanism (14), and a coupling (15). The coupling (15) is connected to the cam mechanism (14) and the drive motor (16) respectively, and is used to provide rotational driving force for the cam mechanism (14). The cam mechanism (14) is connected to the roller (8) for transmission. The roller (8) and the heat-cutting blade mechanism are fixed by the connector (9) in the vertical direction. The linear slider guide rail (13) is fixed to the inner wall of the box (19) by the support plate (10) and the 90° triangle iron (17). At the same time, the linear slider guide rail (13) is connected to the heat-cutting blade mechanism through the sliding groove, so as to realize the horizontal reciprocating motion of the heat-cutting blade on the linear slider guide rail (13).

10. The automatic bagging device for hot-cut vertical fruit and vegetable mesh bags according to claim 9, characterized in that, The cutting blade mechanism includes a slider, on which a blade holder (21) is provided, and a blade (20) is fixed on the blade holder (21); a heating element is integrated inside the blade or close to the blade body, used to heat the blade to a preset temperature; the slider is set in the sliding groove of the linear slider guide rail (13), and a tension spring (11) is connected between the slider and the support plate (10) at one end of the linear slider guide rail.

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