Bag unpacking device

Abstract

The utility model discloses a bag unpacking device which comprises a single-layer outer bag feeding unit, a nest box conveying assembly, a vacuum chamber assembly and a second-layer outer bag cutting device, the single-layer outer bag feeding unit is in butt joint with the nest box conveying assembly, the nest box conveying assembly is in butt joint with the vacuum chamber assembly, and the second-layer outer bag cutting device is in butt joint with the vacuum chamber assembly. The vacuum cavity assembly is in butt joint with the second-layer outer bag cutting device. According to the utility model, the equipment space is saved, the transportation path of the nest box is simplified, the stability of the equipment is improved, and the production mode can be freely selected according to the requirements of terminal clients.

Description

Technical Field

[0001] This utility model relates to the field of bag unpacking technology, and in particular to a bag unpacking device. Background Technology

[0002] The double-layer bag unpacking device is mainly used for the automated removal of the outer packaging bags of pre-filled packaging materials. It automatically transports the inner packaging boxes to the downstream unpacking station and filling machine station through contactless transfer, ensuring the sterility of the packaging material transfer process. The equipment has both double-layer bag removal mode and single-layer bag removal mode, thereby enabling the co-production of multiple types of packaging materials and improving the space utilization efficiency of the customer's workshop.

[0003] The existing double-layer outer packaging removal process is as follows: In the first-layer outer bag cutting unit, after the first outer packaging bag is cut off, the box pushing mechanism pushes the nest box with the outer outer bag to the mouse hole entrance. Then, the box clamping device of the first-layer box exit unit pulls the nest box with the inner outer bag out of the mouse hole entrance. After being moved to a set position, the box clamping mechanism is hidden inside the side plates of the conveyor belt, and the nest box is transported to the downstream station by the conveyor belt of the first-layer box exit unit. In the second-layer outer bag cutting unit, after the inner outer packaging bag is cut off, the box pushing mechanism pushes the nest box with the inner outer bag to the mouse hole entrance. Then, the box clamping device of the second-layer box exit unit (this component is installed at the feed inlet of the inner packaging removal equipment) pulls the nest box out of the mouse hole entrance. After being moved to a set position, the box clamping mechanism is hidden inside the side plates of the conveyor belt, and the nest box is transported to the downstream station by the conveyor belt.

[0004] In the prior art, when the pusher cylinder of the first outer bag cutting unit reaches its maximum stroke, it needs to pass through the clamping assembly (such as...) in the first outer bag ejection unit. Figure 5 , 6 The component 311 shown clamps the edge of the nest box so that it can be transported downstream.

[0005] In the existing double-layer unpacking production process, the box clamping and box ejection structures are complex, and the operation is prone to random instability, and there is also a risk of cross-contamination. Utility Model Content

[0006] The purpose of this utility model is to overcome the existing defects by providing a bag unpacking device that simplifies the transportation path of the nest box, improves the stability of the equipment, and allows for free selection of production modes according to the needs of end customers.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The bag unpacking device includes a single-layer outer bag feeding unit, a nest box conveying assembly, a vacuum chamber assembly, and a second-layer outer bag cutting device;

[0009] The single-layer outer bag feeding unit is connected to the nest box conveying assembly, the nest box conveying assembly is connected to the vacuum chamber assembly, and the vacuum chamber assembly is connected to the second-layer outer bag cutting device;

[0010] The second outer bag cutting device includes a box pushing assembly, which includes a gripper cylinder, a first Y-axis box pushing cylinder, and a second Y-axis box pushing cylinder. The first Y-axis box pushing cylinder is disposed above the gripper cylinder, and the second Y-axis box pushing cylinder is disposed on the side of the gripper cylinder and the first Y-axis box pushing cylinder.

[0011] Preferably, it also includes a double-layer outer bag feeding unit, a first-layer outer bag cutting unit, a discharge mesh belt unit, and a nest box turning assembly;

[0012] The double-layer outer bag feeding unit is connected to the first-layer outer bag cutting unit, the first-layer outer bag cutting unit is connected to the discharge mesh belt unit, the discharge mesh belt unit is connected to the nest box turning assembly, the nest box turning assembly is connected to the nest box conveying assembly, the nest box conveying assembly is connected to the vacuum chamber assembly, and the vacuum chamber assembly is connected to the second-layer outer bag cutting device.

[0013] Preferably, the first outer bag cutting unit includes a pressing and cutting assembly, a cutting blade running assembly, a conveyor belt, an outer bag inserting tooth assembly, and a pusher box assembly.

[0014] The first outer bag cutting unit also includes a conveyor belt, on one side of which is provided a pressing and cutting edge assembly and a cutting blade running assembly; on the other side is provided an outer bag inserting tooth assembly; one end of the conveyor belt is connected to the push box assembly.

[0015] Preferably, the single-layer outer bag feeding unit, the nest box conveying assembly, the vacuum chamber assembly, and the second-layer outer bag cutting device constitute a structure for unpacking single-layer bags.

[0016] Preferably, the double-layer outer bag feeding unit, the first-layer outer bag cutting unit, the discharge mesh belt unit, the nest box turning assembly, the nest box conveying assembly, the vacuum chamber assembly, and the second-layer outer bag cutting device constitute a structure for unpacking double-layer bags.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting the push box assembly at the first outer bag cutting unit and the second outer bag cutting device, the clamping mechanism of the two box-out units is eliminated, which makes the overall length of the inner packaging unit more compact, saving 47.4% of space in the length direction, and reducing the total cost of the inner packaging unit by about 50%. It saves equipment space, simplifies the nest box transportation path, and improves the stability of the equipment.

[0018] It can effectively accommodate the co-production of single-layer and double-layer outer bags, and the production mode can be freely selected according to the needs of the end customer. Regardless of whether the first and second outer bags face the same direction or opposite directions, the outer packaging bags can be automatically removed sequentially. In terms of spatial layout, it is 50% smaller in length compared to existing equipment layouts, with a smaller footprint, higher operability, and lower overall cost. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the bag unpacking device of this utility model;

[0021] Figure 2 This is a top view of the bag unpacking device of this utility model;

[0022] Figure 3 This is a schematic diagram of the first outer bag cutting unit of this utility model;

[0023] Figure 4 This is a schematic diagram of the push box assembly of this utility model;

[0024] Figure 5 This is a schematic diagram of existing technology;

[0025] Figure 6 A detailed schematic diagram of the existing technology;

[0026] Figure 7 Here is a detailed view of the conveyor belt of this utility model;

[0027] Figure 8 This is a schematic diagram showing the double-layer bag of this utility model facing different directions;

[0028] Figure 9 This is a flowchart illustrating the single-layer unpacking mode of this utility model;

[0029] Figure 10 This is a flowchart illustrating the double-layer unpacking mode of this utility model;

[0030] Figure 11 This is a flowchart detailing the double-layer unpacking mode of this utility model;

[0031] Figure 12 This is a flowchart detailing the single-layer unpacking mode of this utility model.

[0032] In the diagram: 1. Double-layer outer bag feeding unit; 2. First-layer outer bag cutting unit; 3. Discharge mesh belt unit; 4. Nest box turning assembly; 5. Single-layer outer bag feeding unit; 6. Nest box conveying assembly; 7. Vacuum chamber assembly; 8. Second-layer outer bag cutting device; 21. Edge trimming and recovery assembly; 22. Edge pressing and trimming assembly; 23. Cutter running assembly; 24. Conveyor mesh belt; 25. Outer bag inserting tooth assembly; 26. Outer bag recovery assembly; 27. Box pushing assembly; 271. Gripper cylinder; 272. First Y-axis box pushing cylinder; 273. Second Y-axis box pushing cylinder. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1 , Figure 2 The bag unpacking device of this utility model consists of a single-layer outer bag feeding unit 5, a nest box conveying assembly 6, a vacuum chamber assembly 7, and a second-layer outer bag cutting device 8, which are used to unpack single-layer bags.

[0035] The single-layer outer bag feeding unit 5 is connected to the nest box conveying assembly 6, the nest box conveying assembly 6 is connected to the vacuum chamber assembly 7, and the vacuum chamber assembly 7 is connected to the second-layer outer bag cutting device 8.

[0036] Please see Figure 4 , Figure 7 The second outer bag cutting device 8 includes a box pushing assembly 27, which includes a gripper cylinder 271, a first Y-direction box pushing cylinder 272, and a second Y-direction box pushing cylinder 273. The first Y-direction box pushing cylinder 272 is disposed above the gripper cylinder 271, and the second Y-direction box pushing cylinder 273 is disposed on the side of the gripper cylinder 271 and the first Y-direction box pushing cylinder 272.

[0037] Please see Figure 1 , Figure 2 The double-layer outer bag feeding unit 1, the first layer outer bag cutting unit 2, the discharge mesh belt unit 3, the nest box turning assembly 4, the nest box conveying assembly 6, the vacuum chamber assembly 7, and the second layer outer bag cutting device 8 constitute a structure for unpacking double-layer bags.

[0038] The double-layer outer bag feeding unit 1 connects to the first-layer outer bag cutting unit 2, the first-layer outer bag cutting unit 2 connects to the discharge mesh belt unit 3, the discharge mesh belt unit 3 connects to the nest box turning assembly 4, the nest box turning assembly 4 connects to the nest box conveying assembly 6, the nest box conveying assembly 6 connects to the vacuum chamber assembly 7, and the vacuum chamber assembly 7 connects to the second-layer outer bag cutting device 8. It also includes the nest box turning assembly 4, which is further installed between the discharge mesh belt unit 3 and the nest box conveying assembly 6. It also includes a visual inspection device; a visual inspection device is also installed between the discharge mesh belt unit 3 and the nest box turning assembly 4.

[0039] Please see Figure 3 , 4 7. The first-layer outer bag cutting unit 2 includes a pressing and cutting assembly 22, a cutting blade running assembly 23, a conveyor belt 24, an outer bag inserting tooth assembly 25, and a pushing box assembly 27. The pressing and cutting assembly 22 and the cutting blade running assembly 23 are arranged on one side of the conveyor belt 24; the outer bag inserting tooth assembly 25 is arranged on the other side; one end of the conveyor belt 24 is connected to the pushing box assembly 27. The pushing box assembly 27 includes a gripper cylinder 271, a first Y-direction pushing box cylinder 272, and a second Y-direction pushing box cylinder 273; the first Y-direction pushing box cylinder 272 is arranged above the gripper cylinder 271, and the second Y-direction pushing box cylinder 273 is arranged on the side of the gripper cylinder 271 and the first Y-direction pushing box cylinder 272.

[0040] Specifically, in the double-layer outer bag feeding mode, the packaging material is conveyed to the conveyor belt 24 of the first-layer outer bag cutting unit via the double-layer outer bag feeding unit 1. The conveyor belt 24 is speed-controlled by a motor. When the nest box is conveyed to the set position, a fiber optic sensor detects that the nest box is in place and sends an output signal to the PLC. The PLC initiates a command, and the cutter running component 23 is driven by a thin cylinder with a guide rod (with guiding properties, not easy to swing left and right) to rise to the stroke position. After the upper limit magnetic switch detects the signal, it transmits the signal to the PLC. The actions that are synchronized with the rise of the cutter running component 23 are as follows: the gantry-type edge cutting component 22 descends, and the flipping plate of the edge cutting recovery component 21 rotates 90 degrees. The lifting and lowering of the edge-cutting assembly and the rotation of the tipping plate of the edge-cutting recycling assembly are both driven by cylinders. When both cylinders reach their stroke positions, their respective magnetic switches detect the position completion signal and transmit it to the PLC. The PLC then sends a command to the lifting cylinder of the cutter running assembly 23. The cutter rises to its stroke position, and after the magnetic switch detects the position, it transmits a signal to the PLC. The PLC then sends a command to the X-axis movement cylinder of the cutter, causing the cutter to move along the X-axis and open the outer packaging bag. At this time, the cut edge is dropped into the edge-cutting recycling assembly. In this process, at this time, the gripper cylinder 271 on the push box assembly 27 clamps the two corners of the outer packaging bag's breathing port end. The PLC gives a command to rotate the flip plate of the edge-cutting and recycling assembly counterclockwise by 90° to a horizontal position. The cutter running assembly 23 descends to its initial position. When the magnetic switches of the two cylinders are detected, the first Y-axis push box cylinder 272 is activated, pushing the nest box to the mouse hole opening. At the same time, the second Y-axis push box cylinder 273 pushes the nest box onto the conveyor belt of the downstream station while the gripper cylinder clamps the corners of the outer bag. Then the second push box cylinder 273 resets, and the gripper cylinder remains in a clamping state until both the gripper cylinder 271 and the first Y-axis push box cylinder 272 are reset, and the magnetic switch detects the cylinder position signal. Then the gripper opens, and the outer bag insertion tooth assembly 25 inserts the outer packaging bag into the outer bag recycling assembly 26.

[0041] Specifically, by setting the pusher assembly 27 at the first outer bag cutting unit 2 and the second outer bag cutting device 8, the clamping mechanism of the two box-out units is eliminated, making the overall length of the inner packaging unit more compact. In terms of length, space is saved by 47.4%, and the total cost of the inner packaging unit is reduced by about 50%. This saves equipment space, simplifies the nest box transportation path, and improves the stability of the equipment.

[0042] Please see Figure 9 , 12 The unpacking method of the single-layer bag unpacking device includes the following steps:

[0043] Step S1: Prepare packaging materials;

[0044] Step S2, Single-layer mode selection;

[0045] Step S2, single-layer mode selection includes;

[0046] Step S201: Select single-layer unpacking mode;

[0047] Step S202: The packaging material enters from the single-layer outer bag feeding unit 5 into the nest box conveying assembly 6, the second-layer outer bag cutting device 8, and downstream processes.

[0048] Step S3, filling and capping machine;

[0049] Step S4, nest removal machine;

[0050] Step S5, rotary labeling machine;

[0051] Step S6, post-packaging;

[0052] Step S7: End production.

[0053] Please see Figure 10 , 11 The unpacking method of the double-layer bag unpacking device includes the following steps;

[0054] Step S1: Prepare packaging materials;

[0055] Step S2, dual-layer mode selection;

[0056] Step S2, the dual-layer mode selection includes;

[0057] Step S21: Select the double-layer unpacking mode;

[0058] Step S22: The packaging material enters from the double-layer outer bag feeding unit 1 - first-layer outer bag cutting unit 2 - discharge conveyor belt unit 3 - vision inspection device - nest box turning assembly 4 - nest box conveying assembly 6 - vacuum chamber assembly 7 - second-layer outer bag cutting device 8 - downstream process. When the vision inspection device detects that the breathable paper ends of the double-layer outer packaging bags are in the same direction, the material is directly transferred to the nest box conveying assembly 6; when the vision inspection device detects that the breathable paper ends of the double-layer outer packaging bags are in opposite directions, the material needs to pass through the nest box turning device 4 before being transferred to the nest box conveying assembly 6.

[0059] Step S3, filling and capping machine;

[0060] Step S4, nest removal machine;

[0061] Step S5, rotary labeling machine;

[0062] Step S6, post-packaging;

[0063] Step S7: End production.

[0064] like Figure 8As shown, if the breathable paper ends of the double-layer outer packaging bags face each other, the nest box of the double-layer bag will pass through the double-layer outer bag feeding unit 1 - first-layer outer bag cutting unit 2 - discharge mesh belt unit 3 - visual detection of the breathable paper ends of the outer packaging bags facing each other - the nest box will rise and rotate 180° in the turning device 4 and then fall onto the mesh belt - nest box conveying assembly 6 - vacuum chamber unit 7 - second-layer outer bag cutting device 8. If the breathable paper ends of the double-layer outer packaging bags face the same direction, the nest box of the double-layer bag will pass through the double-layer outer bag feeding unit 1 - first-layer outer bag cutting unit 2 - first-layer outer bag exit unit 3 - visual detection of the breathable paper ends of the outer packaging bags facing the same direction - nest box conveying assembly 6 - vacuum chamber unit 7 - second-layer outer bag cutting device 8.

[0065] This device can effectively accommodate the co-production of single-layer and double-layer outer bags, allowing for flexible selection of production modes based on end-customer needs. Regardless of whether the first and second outer bags face the same or opposite directions, the outer packaging bags can be automatically removed sequentially. The spatial layout is 50% smaller in length compared to existing equipment, requiring less space, offering greater operability, and resulting in lower overall costs.

[0066] It can also push the box to the mouse hole and then to the next work station immediately after the outer bag is cut open, thereby avoiding the risk of cross-contamination of existing equipment, realizing contactless transfer of packaging materials, and is more in line with the latest regulations.

[0067] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bag unpacking device, characterized in that, It includes a single-layer outer bag feeding unit (5), a nest box conveying assembly (6), a vacuum chamber assembly (7), and a second-layer outer bag cutting device (8); The single-layer outer bag feeding unit (5) is connected to the nest box conveying assembly (6), the nest box conveying assembly (6) is connected to the vacuum chamber assembly (7), and the vacuum chamber assembly (7) is connected to the second-layer outer bag cutting device (8); The second outer bag cutting device (8) includes a box pushing assembly (27), which includes a gripper cylinder (271), a first Y-direction box pushing cylinder (272), and a second Y-direction box pushing cylinder (273). The first Y-direction box pushing cylinder (272) is disposed above the gripper cylinder (271), and the second Y-direction box pushing cylinder (273) is disposed on the side of the gripper cylinder (271) and the first Y-direction box pushing cylinder (272).

2. The bag unpacking device according to claim 1, characterized in that, It also includes a double-layer outer bag feeding unit (1), a first-layer outer bag cutting unit (2), a discharge mesh belt unit (3), and a nest box turning assembly (4); The double-layer outer bag feeding unit (1) is connected to the first layer outer bag cutting unit (2), the first layer outer bag cutting unit (2) is connected to the discharge mesh belt unit (3), the discharge mesh belt unit (3) is connected to the nest box turning assembly (4), the nest box turning assembly (4) is connected to the nest box conveying assembly (6), the nest box conveying assembly (6) is connected to the vacuum chamber assembly (7), and the vacuum chamber assembly (7) is connected to the second layer outer bag cutting device (8).

3. The bag unpacking device according to claim 2, characterized in that, The first outer bag cutting unit (2) includes a pressing and cutting assembly (22), a cutting blade running assembly (23), a conveyor belt (24), an outer bag inserting tooth assembly (25), and a push box assembly (27). The first outer bag cutting unit (2) also includes a conveyor belt (24), on one side of which is provided a pressing and cutting assembly (22) and a cutting blade running assembly (23); on the other side is provided an outer bag inserting tooth assembly (25); one end of the conveyor belt (24) is connected to the push box assembly (27).

4. The bag unpacking device according to claim 1, characterized in that, The single-layer outer bag feeding unit (5), the nest box conveying assembly (6), the vacuum chamber assembly (7), and the second-layer outer bag cutting device (8) constitute a structure for unpacking single-layer bags.

5. The bag unpacking device according to claim 3, characterized in that, The double-layer outer bag feeding unit (1), the first layer outer bag cutting unit (2), the discharge mesh belt unit (3), the nest box turning assembly (4), the nest box conveying assembly (6), the vacuum chamber assembly (7), and the second layer outer bag cutting device (8) constitute a structure for unpacking double-layer bags.

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