A hybrid packaging apparatus with inter-bay movement of a transfer bin

Abstract

The application relates to a mixed packaging equipment with interlayer transfer of a transfer bin, which is applied to the field of packaging equipment and can realize intelligent and automatic transfer of a flexible transfer bin, automatic packaging of materials, and automatic transfer of materials without manual operation, effectively reducing workload and effectively reducing safety hazards during manual feeding, and through the setting of a movable material cone net penetrating and attached to the mouth of the flexible transfer bin, on one hand, the flexible transfer bin and the automatic docking device can be docked for detection, misalignment can be found in time, the accurate transfer of materials can be effectively ensured, and material spilling is not prone to occur, on the other hand, when the mouth is blocked during discharging, the automatic docking device can attract the bottom of the movable material cone net, so that the movable material cone net moves downward and is twisted to some extent, the material is effectively loosened, and the downward movement is accelerated, and compared with the prior art, the packaging speed of the material is greatly increased.

Description

Technical Field

[0001] This invention relates to a mixed packaging device, and more particularly to a mixed packaging device with interlayer movement of transfer hoppers for use in the field of packaging equipment. Background Technology

[0002] The packaging process includes major steps such as filling, wrapping, and sealing, as well as related pre- and post-packaging processes such as cleaning, feeding, stacking, and unpacking. In addition, packaging also includes steps such as measuring or printing dates on the packages. Using packaging machinery can improve productivity, reduce labor intensity, meet the needs of large-scale production, and satisfy hygiene requirements.

[0003] In the process of transferring and packaging materials, existing technologies often require manual intervention, resulting in a relatively low degree of automation. Furthermore, the material packaging process involves multiple transfers. For example, Chinese patent CN110341994A discloses a material packaging equipment and a material packaging method, and CN115303519A discloses a material packaging equipment.

[0004] During the material transfer process from the silo to the mixer, the two openings need to be aligned before the transfer. In the existing technology, position sensors and limit devices are generally installed on the conveyor rollers used for transfer to identify whether the silo is in place and whether the alignment is accurate. While these devices can generally play a good role in limiting the position along the conveying direction, the front and back positions are prone to shift during the conveyor roller transmission process. This can lead to a misalignment between the alignment device at the top of the mixer and the bottom of the silo when the material finally reaches the alignment position, which may cause material to spill during the transfer. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that during material transfer, there is a misalignment between the hopper opening and the docking device, which causes material to spill and result in material waste.

[0006] To address the aforementioned problems, this invention provides a mixing and packaging equipment with interlayer movement of intermediate transfer silos, comprising an elevator and a frame installed parallel to the elevator. A conveyor roller assembly is installed on the upper end of the elevator and the frame. A double-ribbon mixer and a screw conveyor are installed sequentially from top to bottom on the frame. A dual-station packaging scale is installed directly below the screw conveyor. Along the direction away from the elevator, a heat sealing machine and a bag sewing machine are also installed below the frame. A conveyor belt is installed at the lower end of the dual-station packaging scale, the heat sealing machine, and the screw conveyor.

[0007] A lateral limiting device is fixedly connected to the upper end of the frame away from the elevator. A position sensor is installed on the upper end of the lateral limiting device. An automatic docking device is fixedly connected to the upper end of the double ribbon mixer. Two proximity switches are installed on the automatic docking device. The flexible turnover silo is transferred to the elevator by the AGV trolley. The flexible turnover silo is transferred to the top of the automatic docking device under the action of the elevator and the conveyor roller assembly. When the flexible turnover silo is above the automatic docking device, the lower opening of the flexible turnover silo corresponds and matches with the automatic docking device. A QR code is installed on the flexible turnover silo. The flexible turnover silo includes an outer frame and a flexible silo connected to the outer frame. The upper and lower openings of the flexible silo are both rigid fixed structures, and solenoid valves are installed at the upper and lower openings of the flexible silo.

[0008] The flexible chamber is internally connected to a moving material cone mesh, the lower end of which extends into the lower opening of the flexible chamber.

[0009] In the aforementioned mixed packaging equipment with interlayer movement of transfer silos, intelligent and automated transfer of flexible turnover silos can be achieved, realizing automated packaging of materials without the need for manual material transfer, which effectively reduces workload and also reduces safety hazards during manual material loading.

[0010] As a further improvement of this application, an embedded groove is chiseled at the lower opening of the flexible turnover silo, and the top of the embedded groove forms a step with the inner wall of the flexible turnover silo. The lower end of the moving material cone mesh is located in the embedded groove, and the lower end of the moving material cone mesh is in contact with the top of the embedded groove.

[0011] As a further improvement of this application, an electromagnetic coil is fixedly connected to the upper end of the automatic docking device. The electromagnetic coil matches the embedded groove, and there is a mutual attraction force between the electromagnetic coil and the lower end of the moving material cone mesh after energization.

[0012] As a further improvement of this application, the moving material cone mesh includes a positioning ring located in the cone structure below the flexible turnover hopper, an electromagnetic pull ring located in the opening below the flexible turnover hopper, and multiple moving material strips respectively fixedly connected between the positioning ring and the electromagnetic pull ring. Multiple connecting rods are fixedly connected between the positioning ring and the inner wall of the flexible turnover hopper, and the multiple connecting rods are distributed with the multiple moving material strips at intervals.

[0013] As a further improvement of this application, the moving material bar includes a moving twist bar and a ring sleeve fixedly connected to one end of the moving twist bar near the positioning ring. The end of the moving twist bar away from the ring sleeve is fixedly connected to an electromagnetic pull ring, and the ring sleeve is fixedly connected to the positioning ring.

[0014] As a further improvement of this application, the line connecting the two ends of the moving strip is not perpendicular to the electromagnetic pull ring, and the smaller included angle between them is not less than 45°.

[0015] As a further improvement of this application, the part of the positioning ring connected to the connecting rod is a rigid structure, while the remaining part of the positioning ring is an elastic structure, and the moving torsion bar is a metal spring structure.

[0016] As another improvement of this application, the electromagnetic pull ring is made of electromagnetic material, and the lower end of the electromagnetic pull ring is horizontally cut. Multiple pressure sensors are installed on the horizontal cut surface of the electromagnetic pull ring in a ring array. The radius of the circle formed by the center points of the multiple pressure sensors is consistent with the diameter of the middle part of the electromagnetic ring.

[0017] In summary, this technology enables intelligent and automated transfer and movement of flexible turnover silos, achieving automated material packaging without the need for manual material transfer. This effectively reduces workload and safety hazards associated with manual loading. Furthermore, the moving material cone mesh, which runs through and is attached to the opening of the flexible turnover silo, allows for detection during docking with the automatic docking device. This timely detection of misalignment ensures accurate material transfer and prevents spillage. Additionally, during unloading, if blockage occurs at the opening, the automatic docking device attracts the bottom of the moving material cone mesh, causing it to move downwards and twist, effectively loosening the material and accelerating its descent. Compared to existing technologies, this significantly speeds up the packaging process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the material transfer process according to the first embodiment of this application;

[0019] Figure 2 This is a front view of the first embodiment of this application;

[0020] Figure 3 This is a partial schematic diagram of the flexible turnover silo in the first embodiment of this application during docking;

[0021] Figure 4 This is a partial schematic diagram of the flexible turnover silo after the moving material cone mesh (8) is installed inside and docked with the automatic docking device in the first embodiment of this application;

[0022] Figure 5 This is a partial schematic diagram of the connection between the flexible turnover silo and the automatic docking device in the first embodiment of this application;

[0023] Figure 6 This is a perspective view of the moving material cone mesh according to the first embodiment of this application;

[0024] Figure 7 This is a top view of the moving material cone mesh according to the first embodiment of this application;

[0025] Figure 8This is a bottom perspective view of the electromagnetic pull ring according to the first embodiment of this application;

[0026] Figure 9 This is a schematic diagram showing the fine-tuning of the flexible turnover silo opening and the automatic docking device opening after misalignment occurs in the first embodiment of this application.

[0027] Explanation of the labels in the diagram:

[0028] 1. Elevator; 2. Flexible turnover silo; 3. Conveyor roller assembly; 4. Position sensor; 5. Frame; 5. Horizontal limit device; 6. Automatic docking device; 6. Magnetic coil; 7. Double ribbon mixer; 9. Dual-station packaging scale; 10. Conveyor belt; 11. Heat sealing machine; 12. Sewing machine; 13. Screw conveyor.

[0029] 8. Moving material cone mesh, 81. Electromagnetic pull ring, 82. Positioning ring, 83. Moving torsion bar, 84. Serial ring sleeve, 85. Connecting rod, 801. Pressure sensor. Detailed Implementation

[0030] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0031] First implementation method:

[0032] Figure 1-2 A mixing and packaging equipment with interlayer movement of transfer silos is shown, including an elevator 1 and a frame 51 installed side by side with the elevator 1. A conveyor roller assembly 3 is installed on the upper end of the elevator 1 and the frame 51. A double-ribbon mixer 7 and a screw conveyor 13 are installed sequentially from top to bottom on the frame 51. A dual-station packaging scale 9 is installed directly below the screw conveyor 13. Along the direction away from the elevator 1, a heat sealing machine 11 and a sewing machine 12 are also installed below the frame 51. A conveyor belt 10 is installed at the lower end of the dual-station packaging scale 9, the heat sealing machine 11 and the screw conveyor 13.

[0033] A lateral limiting device 52 is fixedly connected to the upper end of the frame 51, away from the elevator 1. A position sensor 4 is installed on the upper end of the lateral limiting device 52. Figure 3An automatic docking device 6 is fixedly connected to the upper end of the twin-ribbon mixer 7. The automatic docking device 6 is equipped with two proximity switches. The flexible turnover hopper 2 is transferred to the elevator 1 by an AGV trolley. Under the action of the elevator 1 and the conveyor roller assembly 3, the flexible turnover hopper 2 is transferred to the top of the automatic docking device 6. When the flexible turnover hopper 2 is above the automatic docking device 6, the lower opening of the flexible turnover hopper 2 corresponds and matches with the automatic docking device 6. A QR code is installed on the flexible turnover hopper 2. A camera is also installed on the corresponding lateral limit device 52. The camera is used to scan the QR code and read the information recorded on the QR code. The QR code records the material information loaded in the flexible turnover hopper 2. This allows for a safety check before the material in the flexible turnover hopper 2 is transferred to the twin-ribbon mixer 7, which makes it easy to confirm that the transferred material is the target material and prevents non-target materials from being transferred.

[0034] The lower opening of the flexible turnover silo 2 has an embedded groove, and the top of the embedded groove forms a step with the inner wall of the flexible turnover silo 2. The lower end of the moving material cone mesh 8 is located in the embedded groove, and the lower end of the moving material cone mesh 8 is in contact with the top of the embedded groove. The upper end of the automatic docking device 6 is fixedly connected to an electromagnetic coil 61, which matches the embedded groove. After being energized, there is a mutual attraction force between the electromagnetic coil 61 and the lower end of the moving material cone mesh 8.

[0035] During material transfer, the AGV trolley transports the flexible turnover bin 2 loaded with materials to the elevator 1. The elevator 1 lifts the flexible turnover bin 2 to the conveyor roller assembly 3. The conveyor roller assembly 3 then transports the flexible turnover bin 2 above the automatic docking device 6. Under the limiting action of the lateral limiting device 52, the flexible turnover bin 2 is positioned directly above the automatic docking device 6. When the two are close together, the electromagnetic coil 61 can be energized, causing it to downwardly attract the moving material cone mesh 8. When multiple pressure sensors 801 on the moving material cone mesh 8 generate... When the force data is displayed, it indicates that the opening of the flexible turnover silo 2 is completely aligned with the automatic docking device 6. At this time, the proximity switch on the automatic docking device 6 and the solenoid valve at the lower opening of the flexible turnover silo 2 are opened simultaneously to ensure that the material is transferred to the double ribbon mixer 7 without spillage. After being mixed evenly by the double ribbon mixer 7, the material is conveyed by the screw conveyor 13 to the dual-station packaging scale 9 for bagging. Then, it is conveyed by the conveyor belt 10 to the heat sealing machine 11 and the sewing machine 12 for heat sealing and sewing, thus completing the transfer and packaging of the material.

[0036] The flexible turnover silo 2 includes an outer frame and a flexible silo connected to the outer frame. Compared with the rigid silo in the prior art, the flexible silo is deformable. When the internal material clumps or blocks the opening, the staff can perform certain operations from the outside. After such situations occur, due to its flexibility and deformability, the staff can deal with the clumps or blockages, which is more convenient. The upper and lower openings of the flexible silo are both rigid fixed structures, and both the upper and lower openings of the flexible silo are equipped with solenoid valves. The solenoid valves enable the flexible silo to open and close automatically, which facilitates the automated transfer of materials.

[0037] like Figure 4 and Figure 5 The flexible chamber is internally connected to a moving material cone mesh 8, the lower end of which extends into the lower opening of the flexible chamber, such as... Figure 6 The moving material cone mesh 8 includes a positioning ring 82 located in the conical structure below the flexible turnover hopper 2, an electromagnetic pull ring 81 located in the lower opening of the flexible turnover hopper 2, and multiple moving material strips respectively fixedly connected between the positioning ring 82 and the electromagnetic pull ring 81. Multiple connecting rods 85 are fixedly connected between the positioning ring 82 and the inner wall of the flexible turnover hopper 2. The multiple connecting rods 85 are distributed with the multiple moving material strips at intervals. Since the lower opening of the flexible turnover hopper 2 is small, when the material is transferred into the double ribbon mixer 7, if the flexible turnover hopper 2 becomes partially blocked, the electromagnetic ring opening 61 can be controlled to continuously switch on and off, so that it continuously attracts and releases the electromagnetic pull ring 81, so that the moving material cone mesh 8 as a whole is continuously subjected to the force of up and down movement, thereby loosening some of the material, without the need for manual operation.

[0038] Among them, the positioning ring 82 at the top of the moving material cone mesh 8 is not higher than the center line of the cone structure. If the distance is too high, it will easily cause the overall vertical span of the moving material cone mesh 8 to be too large. Meanwhile, the range of the electromagnetic pull ring 81 moving downward is too small compared to the overall span of the moving material cone mesh 8, resulting in a poor effect on material movement.

[0039] The moving material bar includes a moving torsion bar 83 and a ring sleeve 84 fixedly connected to the end of the moving torsion bar 83 near the positioning ring 82. The end of the moving torsion bar 83 away from the ring sleeve 84 is fixedly connected to an electromagnetic pull ring 81, and the ring sleeve 84 is fixedly connected to the positioning ring 82. Figure 7 The line connecting the two ends of the moving material strip is not perpendicular to the electromagnetic pull ring 81, and the smaller included angle between them is not less than 45°. When the electromagnetic pull ring 81 is subjected to a downward adsorption force, the moving twist strip 83 will deflect to a certain extent when it is forced to move downward. This causes the moving twist strip 83, which was originally attached to the inner wall of the flexible turnover hopper 2, to form a certain angle with the inner wall of the positioning ring 82, which improves the effect of loosening the material and facilitates the acceleration of the material falling.

[0040] like Figure 9When the flexible turnover silo 2 docks with the automatic docking device 6, the fixed position of the automatic docking device 6 is used as a reference. When there is a misalignment between the lower end of the flexible turnover silo 2 and the automatic docking device 6, when the electromagnetic coil 61 is energized, the electromagnetic pull ring 81 moves down, causing only part of the pressure sensor 801 to come into contact with the electromagnetic coil 61 and generate force data. Therefore, the misalignment can be determined based on the force of the pressure sensor 801. After misalignment, the operator can adjust the position of the flexible turnover silo 2 according to the actual situation to make the docking accurate. Alternatively, a robot or electric push rod can be installed on the frame 51. After determining the offset direction, the flexible turnover silo 2 can be pushed in the opposite direction to achieve automatic position correction and make the docking accurate.

[0041] The part connecting the positioning ring 82 and the connecting rod 85 is a rigid structure, while the rest of the positioning ring 82 is an elastic structure. The moving torsion bar 83 is a metal spring structure. When the electromagnetic pull ring 81 is subjected to magnetic attraction and pulls the moving material bar downward, the positioning ring 82 can adapt to deformation. Due to the misalignment and tilt at both ends, the moving torsion bar 83 can deflect to a certain extent, so that there is a certain angle between it and the flexible turnover hopper 2, which makes the material turnover effect better.

[0042] In this embodiment, such as Figure 8 The electromagnetic pull ring 81 is made of electromagnetic material and is located in the inner groove and in contact with the top of the inner groove. The lower end of the electromagnetic pull ring 81 is horizontally cut, and multiple pressure sensors 801 arranged in a ring array are installed on the horizontal cut. The radius of the circle formed by the center points of the multiple pressure sensors 801 is consistent with the diameter of the middle part of the electromagnetic ring 61, which effectively ensures that when the positions are relative, the multiple pressure sensors 801 can be exactly opposite to the electromagnetic ring 61, so that when the electromagnetic ring 61 is energized, the multiple pressure sensors 801 can generate force data.

[0043] In summary, the system enables intelligent and automated transfer and movement of the flexible turnover silo 2, achieving automated material packaging without the need for manual material transfer. This effectively reduces workload and safety hazards associated with manual loading. Furthermore, the moving material cone 8, which penetrates and is attached to the opening of the flexible turnover silo 2, allows for detection during docking with the automatic docking device 6, promptly identifying misalignments and ensuring accurate material transfer with minimal spillage. Additionally, during unloading, if blockage occurs at the opening, the automatic docking device 6 can attract the bottom of the moving material cone 8, causing it to move downwards and twist, effectively loosening the material and accelerating its descent. Compared to existing technologies, this significantly speeds up the material packaging process.

[0044] Second implementation method:

[0045] This embodiment changes the setting method of the moving material cone mesh 8 based on the first embodiment, while the rest remains the same as the first embodiment.

[0046] In this embodiment, only the electromagnetic pull ring 81 is provided; the positioning ring 82, the moving torsion bar 83, the connecting ring sleeve 84, and the connecting rod 85 are not provided. Furthermore, the upper end of the electromagnetic pull ring 81 is connected to the inner top of the embedded groove by multiple elastic ropes. When the electromagnetic ring opening 61 is energized, it can attract the electromagnetic pull ring 81, causing the electromagnetic pull ring 81 to approach the electromagnetic ring opening 61 and press against it. At this time, multiple pressure sensors 801 on the moving material cone mesh 8 generate force data. When the control electromagnetic ring opening 61 is de-energized, the electromagnetic pull ring 81 can be reset under the action of the elastic ropes, causing the force data on the pressure sensors 801 to disappear.

[0047] Compared with the first embodiment, this embodiment only has the function of monitoring whether the flexible turnover silo 2 and the automatic docking device 6 are accurately docked. This can effectively avoid the misalignment of the two, which would cause the material to spill during transfer. This effectively ensures the efficient and stable transfer and packaging of materials, while also effectively reducing material waste.

[0048] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this invention.

Claims

1. A mixing and packaging device with interlayer movement of intermediate transfer hoppers, characterized in that: Includes an elevator (1) and a frame (51) installed side by side with the elevator (1). The elevator (1) and the frame (51) are equipped with a conveyor roller assembly (3) at the upper end. The frame (51) is equipped with a double ribbon mixer (7) and a screw conveyor (13) from top to bottom. A double-station packaging scale (9) is installed directly below the screw conveyor (13). Along the direction away from the elevator (1), a heat sealing machine (11) and a sewing machine (12) are also installed below the frame (51). A conveyor belt (10) is installed at the lower end of the double-station packaging scale (9), the heat sealing machine (11) and the screw conveyor (13). The upper end of the frame (51) away from the elevator (1) is fixedly connected to a lateral limiting device (52). A position sensor (4) is installed on the upper end of the lateral limiting device (52). An automatic docking device (6) is fixedly connected to the upper port of the double ribbon mixer (7). Two proximity switches are installed on the automatic docking device (6). The flexible turnover silo (2) is transferred to the elevator (1) by the AGV trolley. The flexible turnover silo (2) is transferred to the upper part of the automatic docking device (6) under the action of the elevator (1) and the conveying roller assembly (3). When the flexible turnover silo (2) is located above the automatic docking device (6), the lower opening of the flexible turnover silo (2) corresponds to and matches the automatic docking device (6). A QR code is installed on the flexible turnover silo (2). The flexible turnover silo (2) includes an outer frame and a flexible silo connected in the outer frame. The upper and lower openings of the flexible silo are both rigid fixed structures, and electromagnetic valves are installed on the upper and lower openings of the flexible silo. The flexible silo is internally connected to a moving material cone mesh (8), the lower end of which extends into the lower opening of the flexible silo. The upper end of the automatic docking device (6) is fixedly connected to an electromagnetic ring opening (61). The moving material cone mesh (8) includes a positioning ring (82) located in the cone structure below the flexible turnover silo (2), an electromagnetic pull ring (81) located in the lower opening of the flexible turnover silo (2), and multiple moving material strips fixedly connected between the positioning ring (82) and the electromagnetic pull ring (81). The moving material strip includes a moving twist bar (83) and a ring sleeve (84) fixedly connected to one end of the moving twist bar (83) near the positioning ring (82). The end of the moving twist bar (83) away from the ring sleeve (84) is fixedly connected to the electromagnetic pull ring (81), and the ring sleeve (84) is fixedly connected to the positioning ring (82).

2. A mixing and packaging device with interlayer movement of transfer silos according to claim 1, characterized in that: The flexible turnover silo (2) has an embedded groove at the bottom opening, and the top of the embedded groove forms a step with the inner wall of the flexible turnover silo (2). The lower end of the moving material cone mesh (8) is located in the embedded groove, and the lower end of the moving material cone mesh (8) is in contact with the top of the embedded groove.

3. A mixing and packaging device with interlayer movement of transfer silos according to claim 2, characterized in that: The electromagnetic coil (61) is matched with the inner groove, and after being energized, there is a mutual adsorption force between the electromagnetic coil (61) and the lower end of the moving material cone mesh (8).

4. A mixing and packaging device with interlayer movement of transfer silos according to claim 3, characterized in that: The positioning ring (82) is fixedly connected to the inner wall of the flexible turnover hopper (2) by a plurality of connecting rods (85), and the plurality of connecting rods (85) are distributed at intervals with the plurality of moving material strips.

5. A mixing and packaging device with interlayer movement of transfer silos according to claim 1, characterized in that: The line connecting the two ends of the moving strip is not perpendicular to the electromagnetic pull ring (81), and the smaller included angle between them is not less than 45°.

6. A mixing and packaging device with interlayer movement of transfer silos according to claim 5, characterized in that: The part of the positioning ring (82) connected to the connecting rod (85) is a rigid structure, while the remaining part of the positioning ring (82) is an elastic structure, and the moving torsion bar (83) is a metal spring structure.

7. A mixing and packaging device with interlayer movement of transfer silos according to claim 1, characterized in that: The electromagnetic pull ring (81) is made of electromagnetic material, and the lower end of the electromagnetic pull ring (81) is horizontally cut. Multiple pressure sensors (801) are installed on the horizontal cut surface of the electromagnetic pull ring (81) in a ring array. The radius of the circle formed by the center points of the multiple pressure sensors (801) is consistent with the diameter of the middle part of the electromagnetic ring (61).

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