Single-layer bag unpacking device, double-layer bag unpacking device and unpacking method

Abstract

The invention discloses a single-layer bag unpacking device which comprises a single-layer outer bag feeding unit, a nest box conveying assembly, a vacuum cavity assembly, a second-layer outer bag cutting device and a second-layer outer bag box discharging unit. 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, the vacuum chamber assembly is in butt joint with the second-layer outer bag cutting device, and the second-layer outer bag cutting device is in butt joint with the second-layer outer bag box discharging unit. The double-layer bag unpacking device comprises a double-layer outer bag feeding unit, a first-layer outer bag cutting unit, a first-layer outer bag box discharging unit, a nest box conveying assembly, a vacuum cavity assembly, a second-layer outer bag cutting device and a second-layer outer bag box discharging unit. The double-layer outer bag feeding unit is in butt joint with the first-layer outer bag cutting unit, collinear production of single-layer outer bags and double-layer outer bag packing materials can be effectively compatible, and a production mode can be freely selected according to the requirements of terminal clients.

Description

Technical Field

[0001] The invention relates to a single-layer bag unpacking device, a double-layer bag unpacking device and an unpacking method. Background Art

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

[0003] Due to the introduction of new regulations, the application of double-layer bag-type prefilled packaging materials is increasing. The automated double-layer bag removal process is urgent for the fully automatic prefilled packaging filling and plugging product line. The current packaging removal equipment mainly removes single-layer bags. The outer packaging bag is manually wiped, straightened, and placed on the feed buffer platform, and the removal process is automatically carried out. For the demand for double-layer bags, some solutions are to manually remove the outer bag, straighten the inner bag, and place it on the feed buffer platform, and then automatically carry out the removal process, which is inefficient and unsafe. If two packaging removal machines are connected in series, but the inner bag is curled up in the initial state, if no active intervention measures are taken to extend the inner bag, the inner bag cannot be effectively cut.

[0004] The current packaging removal equipment, after cutting the transparent side, will slide the nest box and the outer bag for a distance until they are symmetrical with the center of the mouse hole, then clamp the corners and push the box to the next station. If the double-layer outer bag is removed, the sterile inner and outer bags are at risk of contamination. If the single-layer outer bag is removed, the sterile nest box is also at risk of contamination. Therefore, in terms of process layout, it is necessary to optimize the relative center position of bag cutting and box pushing.

[0005] With current packaging removal equipment, when the transparent side is cut open, if the nest box is pushed directly to the next station, the box-pushing mechanism directly crosses two cleanliness levels, which can easily cause cross-contamination during the aseptic production process. Therefore, the optimal position of the nest box cannot exceed the rat hole entrance, and active intervention measures need to be taken to pull the nest box to the next station.

[0006] According to the currently implemented prefilled packaging material specification ISO 11040-7-2015, the current specification does not stipulate that the direction of the inner and outer bags of prefilled packaging materials must be the same, resulting in the direction of the existing double-layer outer bags being determined by each company's standards. Some packaging material companies make the inner and outer bags in the same direction (such as Figure 4The first layer outer bag breathing port end 101 and the second layer outer bag breathing port end 102 are on the same side), some packaging material companies make the inner layer outer bag and the outer layer outer bag reversed (such as Figure 4 The first layer outer bag breathing port end 103 and the second layer outer bag breathing port end 104 are on both sides), which directly affects the cutting effect of cutting the inner layer outer bag.

[0007] Therefore, in view of the above problems, a single-layer bag unpacking device, a double-layer bag unpacking device and an unpacking method are proposed. Summary of the invention

[0008] The purpose of the present invention is to overcome the existing defects and provide a single-layer bag unpacking device, a double-layer bag unpacking device and an unpacking method, which can effectively be compatible with the co-production of single-layer outer bag and double-layer outer bag packaging materials, and the production mode can be freely selected according to the needs of end customers.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a single-layer bag unpacking device, comprising a single-layer outer bag feeding unit, a nest box conveying assembly, a vacuum chamber assembly, a second-layer outer bag cutting device and a second-layer outer bag box discharging unit;

[0010] 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, the vacuum chamber assembly is connected to the second-layer outer bag cutting device, and the second-layer outer bag cutting device is connected to the second-layer outer bag box output unit.

[0011] A double-layer bag unpacking device, comprising a double-layer outer bag feeding unit, a first-layer outer bag cutting unit, a first-layer outer bag box discharging unit, a nest box conveying assembly, a vacuum chamber assembly, a second-layer outer bag cutting unit, and a second-layer outer bag box discharging unit;

[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 first-layer outer bag box outlet unit, the first-layer outer bag box outlet unit is connected to the nest box conveying assembly, the nest box conveying assembly is connected to the second-layer outer bag cutting device, and the second-layer outer bag cutting device is connected to the second-layer outer bag box outlet unit.

[0013] Preferably, it further comprises a nest box steering device, and the nest box steering device is further arranged between the first layer outer bag box discharging unit and the nest box conveying assembly.

[0014] Preferably, it further comprises a visual inspection device; the visual inspection device is also arranged between the first layer outer bag box discharging unit and the nest box turning device.

[0015] Preferably, the first layer outer bag cutting unit includes a conveyor mesh belt assembly, the front side of the conveyor mesh belt assembly is provided with a trimming assembly and a cutter running assembly; the rear side is provided with a clamping claw cylinder assembly and a box pressing assembly; one end of the conveyor mesh belt assembly is provided with a Y-direction box pushing assembly.

[0016] Preferably, the cutter running assembly is connected to a trimming recovery assembly.

[0017] The unpacking method of the single-layer bag unpacking device comprises the following steps:

[0018] Step S1, preparing packaging materials;

[0019] Step S2, single layer mode selection;

[0020] Step S3, filling and stoppering machine;

[0021] Step S4, nesting machine;

[0022] Step S5, rotary rod labeling machine;

[0023] Step S6, post-process packaging;

[0024] Step S7, end production.

[0025] The step S2, single layer mode selection includes:

[0026] Step S201, selecting a single-layer unpacking mode;

[0027] Step S202, the packaging material enters from the single-layer outer bag feeding unit - the nest box conveying component - the second-layer outer bag cutting unit - the second-layer outer bag box output unit - the downstream process.

[0028] The steps include:

[0029] Step S1, preparing packaging materials;

[0030] Step S2, dual-layer mode selection;

[0031] Step S3, filling and stoppering machine;

[0032] Step S4, nesting machine;

[0033] Step S5, rotary rod labeling machine;

[0034] Step S6, post-process packaging;

[0035] Step S7, end production.

[0036] The step S2, dual-layer mode selection includes:

[0037] Step S21, selecting double-layer unpacking mode;

[0038] Step S22, the packaging material enters from the double-layer outer bag feeding unit - the first layer outer bag cutting unit - the first layer outer bag box discharging unit - the visual inspection device - the nest box steering device - the nest box conveying assembly - the vacuum chamber assembly - the second layer outer bag cutting device - the second layer outer bag box discharging unit - the downstream process.

[0039] When the visual inspection device detects that the breathing paper ends of the double-layer outer packaging bag are in the same direction, the material is directly transferred to the nest box conveying component;

[0040] When the visual inspection device detects that the breathing paper ends of the double-layer outer packaging bag are facing each other, the material needs to pass through the nest box turning device and then be transferred to the nest box conveying component.

[0041] Compared with the prior art, the invention has the following beneficial effects: it can effectively accommodate the co-production of single-layer outer bags and double-layer outer bags, and can freely select the production mode according to the needs of end customers; regardless of whether the first layer outer bag and the second layer outer bag are facing the same direction or opposite to each other, the outer packaging bags can be automatically removed in sequence. The spatial layout in the length direction is 50% smaller than the existing equipment layout, with a small footprint, strong operability, and lower overall cost.

[0042] It is also possible to push the box to the mouse hole and then to the next workstation immediately after cutting the outer bag, thus avoiding the risk of cross contamination of existing equipment and achieving contactless transfer of packaging materials, which is more in line with the latest regulations. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0044] Figure 1 It is a schematic diagram showing that the single-layer unpacking device and the double-layer unpacking device of the present invention are in the same line;

[0045] Figure 2 A top view showing the single-layer unpacking device and the double-layer unpacking device of the present invention being collinear;

[0046] Figure 3 It is a schematic diagram of the first layer outer bag cutting unit of the present invention;

[0047] Figure 4 Schematic diagram of the double-layer bag of the present invention in different orientations;

[0048] Figure 5 It is a schematic diagram of the process of the single-layer unpacking mode of the present invention;

[0049] Figure 6 It is a schematic diagram of the process of the double-layer unpacking mode of the present invention;

[0050] Figure 7It is a detailed diagram of the process of the double-layer unpacking mode of the present invention;

[0051] Figure 8 It is a detailed diagram of the process of the single-layer unpacking mode of the present invention.

[0052] In the figure: 1. Double-layer outer bag feeding unit; 2. First-layer outer bag cutting unit; 3. First-layer outer bag box discharging unit; 4. Visual inspection device; 5. Nest box steering device; 6. Single-layer outer bag feeding unit; 7. Nest box conveying assembly; 8. Vacuum chamber assembly; 9. Second-layer outer bag cutting device; 10. Second-layer outer bag box discharging unit; 21. Y-axis box pushing assembly; 22. Gripper cylinder assembly; 23. Edge trimming recovery assembly; 24. Box pressing assembly; 25. Cutter running assembly; 26. Conveying mesh belt assembly; 27. Edge trimming assembly. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] See also Figure 1-2 The single-layer bag unpacking device includes a single-layer outer bag feeding unit 6, a nest box conveying assembly 7, a vacuum chamber assembly 8, a second-layer outer bag cutting device 9 and a second-layer outer bag box output unit 10; the single-layer outer bag feeding unit 6 is connected to the nest box conveying assembly 7, the nest box conveying assembly 7 is connected to the vacuum chamber assembly 8, the vacuum chamber assembly 8 is connected to the second-layer outer bag cutting device 9, and the second-layer outer bag cutting device 9 is connected to the second-layer outer bag box output unit 10.

[0055] This device is designed based on the characteristics of the packaging material to develop relevant process units, thereby solving the unpacking problem that cannot be achieved by assembling two existing unpacking machines together. There are two process modes to choose from for the double-layer bag unpacking process.

[0056] Single layer outer bag removal process:

[0057] Single-layer outer bag feeding unit 6 - nest box conveying component 7 - second-layer outer bag cutting unit 9 - second-layer outer bag box output unit 10 - downstream process.

[0058] See also Figure 1-3, including a double-layer outer bag feeding unit 1, a first-layer outer bag cutting unit 2, a first-layer outer bag box discharging unit 3, a nest box conveying assembly 7, a vacuum chamber assembly 8, a second-layer outer bag cutting device 9 and a second-layer outer bag box discharging unit 10; 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 first-layer outer bag box discharging unit 3, the first-layer outer bag box discharging unit 3 is connected to the nest box conveying assembly 7, the nest box conveying assembly 7 is connected to the second-layer outer bag cutting device 9, and the second-layer outer bag cutting device 9 is connected to the second-layer outer bag box discharging unit 10. It also includes a nest box steering device 5, and a nest box steering device 5 is also provided between the first-layer outer bag box discharging unit 3 and the nest box conveying assembly 7. It also includes a visual inspection device 4; a visual inspection device 4 is also provided between the first-layer outer bag box discharging unit 3 and the nest box steering device 5.

[0059] Specifically, the first layer outer bag cutting unit 2 includes a conveyor mesh belt assembly 26, a front side of which is provided with a trimming assembly 27 and a cutter operating assembly 25; a rear side is provided with a clamping claw cylinder assembly 22 and a box pressing assembly 24; and a Y-direction box pushing assembly 21 is provided at one end of the conveyor mesh belt assembly 26. The cutter operating assembly 25 is connected to a trimming recovery assembly 23.

[0060] This device is designed based on the characteristics of the packaging material to develop relevant process units, thereby solving the unpacking problem that cannot be achieved by assembling two existing unpacking machines together. There are two process modes to choose from for the double-layer bag unpacking process.

[0061] Double outer bag removal process:

[0062] Double-layer outer bag feeding unit 1-first layer outer bag cutting unit 2-first layer outer bag box discharging unit 3-visual inspection device 4-nest box steering device 5-nest box conveying assembly 7-vacuum chamber assembly 8-second layer outer bag cutting device 9-second layer outer bag box discharging unit 10-downstream process.

[0063] Specifically, the single-layer outer bag removal process shares the relevant devices in the inner-layer outer bag removal process with the double-layer outer bag removal process, saving the customer's factory space. The present invention simultaneously connects to the single-layer outer bag feeding unit and the double-layer outer bag feeding unit. When the single-layer outer bag mode is selected, the packaging material can be directly fed from the single-layer outer bag feeding device, saving the packaging material transportation time, thereby improving production capacity. Overall material flow.

[0064] Specifically, in the double-layer outer bag feeding mode, the packaging material is conveyed to the conveyor belt 26 of the first-layer outer bag cutting unit 2 via the double-layer feeding unit 1. The conveyor belt 26 is controlled by a variable frequency motor to control its speed. When the nest box is conveyed to the set position, the optical fiber sensor detects that the nest box is in place and gives an output signal to the PLC. The PLC initiates a command, the cylinder of the box pressing component 24 is actuated, and the cutter running component 25 is driven by a thin cylinder with a guide rod (with guiding properties, not easy to swing left and right) and rises to the stroke position. After the upper limit magnetic switch detects the signal, it transmits the signal to the PLC. Other actions performed synchronously with the rise of the cutter running component 25 include the gantry-shaped pressing and trimming component 27 descending, and the flip plate of the trimming and trimming recovery component 23 rotating 90 degrees. The lifting and lowering of the trimming and pressing component and the rotating action of the flip plate of the trimming and recycling component are driven by the cylinder. When the cylinders of the two components move to the stroke position, their respective magnetic switches detect the position arrival signal and upload it to the PLC. The PLC gives an instruction to the cutter lifting cylinder in the cutter operation component 25. The cutter rises to the stroke position. After the magnetic switch detects the position, it transmits the signal to the PLC. The PLC gives the cutter X-direction movement cylinder instruction. The cutter moves along the X direction and opens the outer packaging bag. At this time, the trimming is dropped into the trimming and recycling component. When the claw cylinder moves 22, clamps the angles on both sides of the breathing port of the outer packaging bag, the vacuum suction cup on the box pressing assembly opens, moves down 25mm, sucks the outer packaging bag and then rises to the box pressing position. When the magnetic switch detects that the cylinder moves to the set position, it uploads the signal to the PLC, and the PLC gives an instruction to let the flip plate of the trimming recovery assembly rotate 90° counterclockwise to a horizontal state, and the cutter operation assembly 25 descends to the initial position. When the magnetic switches of the two cylinders detect that they are in place, the Y-axis box pushing cylinder moves to push the nest box to the mouse hole. When the downstream detects that the nest box is completely pulled out, the Y-axis box pushing assembly 21 returns to its initial position.

[0065] Specifically, the center of the cutter running component in the prior art does not overlap with the movement center of the Y-axis box pushing component, and when pushing the box, the distance between the nest box and the mouse hole is 2 nest box lengths. After the nest box is pushed out of the outer bag, it is exposed to the current sterile and non-sterile mixed environment, and there is a high risk of contamination. This invention completely overlaps the movement center of the cutter running component and the movement center of the box pushing component. In order to avoid blocking the nest box from being pushed out to the mouse hole, the cutter running component is innovatively raised and lowered as a whole. It rises as a whole when cutting the bag, and before pushing the box, the cutter running component is lowered as a whole, thereby ensuring the integrity of the process. After cutting the bag, it is immediately pushed to the mouse hole, and the concept of contactless transfer of the nest box is automatically realized.

[0066] Specifically, when the single-layer outer bag cutting process production mode is selected on the touch screen, the nest box is straightened manually and placed on the single-layer outer bag feeding unit 6, and the nest box is conveyed to the transition platform by the single-layer feeding unit mesh belt assembly. The Z-axis clamping cylinder on the X-axis pulling box assembly clamps the edge of the nest box and pulls it to the conveyor mesh belt along the X-axis. When the optical fiber sensor of the conveyor mesh belt detects that the nest box is pulled to the set position, the sensor transmits a signal to the PLC, and the PLC gives an instruction to let the conveyor mesh belt transport assembly transport the nest box to the second-layer outer bag cutting unit 9. In the single-layer outer bag cutting mode, the vacuum chamber unit is always in the initialization state. After the single-layer outer bag is cut off, it is pushed out to the mouse hole, and the nest box is pulled out by the second-layer outer bag box outlet unit 10 to the conveyor mesh belt assembly of this process unit, and then the nest box is transported to the next workstation.

[0067] Specifically, with respect to the packing direction of the double-layer outer packaging bag, when the nest boxes are in the same direction, the breathing paper end 102 of the inner outer packaging bag and the breathing paper end 101 of the outer packaging bag are on the same side; when the nest boxes are facing each other, the breathing paper end 104 of the inner outer packaging bag and the breathing paper end 103 of the outer packaging bag are in opposite directions.

[0068] Specifically, if the breathing paper ends of the double-layer outer packaging bag are facing each other, the nest box of the double-layer bag will pass through the double-layer outer bag feeding unit 1-the first layer outer bag cutting unit 2-the first layer outer bag box discharging unit 3-the visual inspection 4 to detect that the breathing paper ends of the outer packaging bag are facing each other-the nest box rises and rotates 180° after the steering device 5 drops to the mesh belt-the vacuum chamber feeding unit 7-the vacuum chamber unit 8-the second layer outer bag cutting unit 9-the second layer outer bag box discharging unit 10.

[0069] Specifically, if the breathing paper ends of the double-layer outer packaging bag are in the same direction, the nest box of the double-layer bag will be detected through the double-layer outer bag feeding unit 1-the first layer outer bag cutting unit 2-the first layer outer bag box output unit 3-visual inspection 4-vacuum chamber feeding unit 7-vacuum chamber unit 8-the second layer outer bag cutting unit 9-the second layer outer bag box output unit 10.

[0070] See also Figure 5 , 8 , the unpacking method of the single-layer bag unpacking device comprises the following steps;

[0071] Step S1, preparing packaging materials;

[0072] Step S2, single layer mode selection;

[0073] Step S3, filling and stoppering machine;

[0074] Step S4, nesting machine;

[0075] Step S5, rotary rod labeling machine;

[0076] Step S6, post-process packaging;

[0077] Step S7, end production.

[0078] Step S2, single layer mode selection includes:

[0079] Step S201, selecting a single-layer unpacking mode;

[0080] Step S202, the packaging material enters from the single-layer outer bag feeding unit 6 - the nest box conveying component 7 - the second-layer outer bag cutting unit 9 - the second-layer outer bag box discharging unit 10 - the downstream process.

[0081] See also Figure 6 , 7 , an unpacking method of a double-layer bag unpacking device, comprising the following steps;

[0082] Step S1, preparing packaging materials;

[0083] Step S2, dual-layer mode selection;

[0084] Step S3, filling and stoppering machine;

[0085] Step S4, nesting machine;

[0086] Step S5, rotary rod labeling machine;

[0087] Step S6, post-process packaging;

[0088] Step S7, end production.

[0089] Step S2, dual-layer mode selection includes:

[0090] Step S21, selecting a double-layer unpacking mode;

[0091] Step S22, the packaging material enters from the double-layer outer bag feeding unit 1 - the first layer outer bag cutting unit 2 - the first layer outer bag box discharging unit 3 - the visual inspection device 4 - the nest box steering device 5 - the nest box conveying assembly 7 - the vacuum chamber assembly 8 - the second layer outer bag cutting device 9 - the second layer outer bag box discharging unit 10 - the downstream process.

[0092] Specifically, when the visual inspection device 4 detects that the breathing paper ends of the double-layer outer packaging bag are in the same direction, the material is directly transferred to the nest box conveying component 7; when the visual inspection device 4 detects that the breathing paper ends of the double-layer outer packaging bag are facing each other, the material needs to pass through the nest box steering device 5 before being transferred to the nest box conveying component 7.

[0093] Specifically, in the double-layer outer bag feeding mode, the packaging material is conveyed to the conveying mesh belt 26 of the first-layer outer bag cutting unit 2 via the double-layer feeding unit 1. The speed of the conveying mesh belt 26 is controlled by a variable-frequency motor. When the nest box is conveyed to the set position, a fiber optic sensor detects the arrival of the nest box here and gives an output signal to the PLC. The PLC issues an instruction, and the cylinder of the box pressing assembly 24 operates. The cutter running assembly 25 is driven by a thin cylinder with a guide rod (with a guiding property and not prone to swinging left and right) and rises to the stroke position. After the upper limit magnetic switch detects the signal, it transmits the signal to the PLC. Synchronous with the rising of the cutter running assembly 25, the pressing and cutting edge assembly 27 in the form of a gantry also descends, and the turning plate of the cutting edge recycling assembly 23 rotates 90 degrees. The lifting of the cutting edge pressing assembly and the rotation of the turning plate of the cutting edge recycling assembly are both driven by cylinders. When the cylinders of both assemblies move to the stroke positions, their respective magnetic switches detect the position in-place signals and upload them to the PLC. The PLC issues an instruction to the cutter lifting cylinder in the cutter running assembly 25, and the cutter rises to the stroke position. After the magnetic switch detects the position, it transmits the signal to the PLC. The PLC gives an instruction to the cutter X-direction moving cylinder, and the cutter cuts open the outer packaging bag along the X-direction. At this time, the cut edge falls into the cutting edge recycling assembly. At this time, the clamping jaw cylinder 22 operates, clamps the two sides of the included angle at the breathing port end of the outer packaging bag, the vacuum suction cups on the box pressing assembly open, move downward by 25 mm, suck the outer packaging bag and then rise to the box pressing position. When the magnetic switch detects that the cylinder has moved to the set position, it uploads the signal to the PLC. The PLC issues an instruction to make the turning plate of the cutting edge recycling assembly rotate counterclockwise by 90°, to be in a horizontal state, and the cutter running assembly 25 descends to the initial position. When the magnetic switches of the two cylinders detect that they are in place, the Y-direction box pushing cylinder operates, pushing the nest box to the mouse hole. When the downstream detects that the nest box has been completely pulled out, the Y-direction box pushing assembly 21 returns to the initial position.

[0094] If the breathing paper ends of the double-layer outer packaging bags are facing each other, the nest box of the double-layer bag will pass through the double-layer outer bag feeding unit 1 - the first-layer outer bag cutting unit 2 - the first-layer outer bag out-of-box unit 3 - visual inspection 4 to detect that the breathing paper ends of the outer packaging bags are facing each other - the nest box rises and rotates 180° in the turning device 5 and then descends to the mesh belt - the vacuum chamber feeding unit 7 - the vacuum chamber unit 8 - the second-layer outer bag cutting unit 9 - the second-layer outer bag out-of-box unit 10.

[0095] If the breathing paper ends of the double-layer outer packaging bags are in the same direction, the nest box of the double-layer bag will pass through the double-layer outer bag feeding unit 1 - the first-layer outer bag cutting unit 2 - the first-layer outer bag out-of-box unit 3 - visual inspection 4 to detect that the breathing paper ends of the outer packaging bags are in the same direction - the vacuum chamber feeding unit 7 - the vacuum chamber unit 8 - the second-layer outer bag cutting unit 9 - the second-layer outer bag out-of-box unit 10.

[0096] This device can effectively accommodate the co-production of single-layer outer bags and double-layer outer bags, and can freely choose the production mode according to the needs of end customers; regardless of whether the first layer outer bag and the second layer outer bag are facing the same direction or opposite to each other, the outer packaging bags can be automatically removed in sequence. The spatial layout in the length direction is 50% smaller than the existing equipment layout, with a small footprint, strong operability, and lower overall cost.

[0097] It is also possible to push the box to the mouse hole and then to the next workstation immediately after cutting the outer bag, thus avoiding the risk of cross contamination of existing equipment and achieving contactless transfer of packaging materials, which is more in line with the latest regulations.

[0098] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Single-layer bag unpacking device, characterized in that: It comprises a single-layer outer bag feeding unit (6), a nest box conveying assembly (7), a vacuum chamber assembly (8), a second-layer outer bag cutting device (9) and a second-layer outer bag box discharging unit (10); The single-layer outer bag feeding unit (6) is connected to the nest box conveying assembly (7), the nest box conveying assembly (7) is connected to the vacuum chamber assembly (8), the vacuum chamber assembly (8) is connected to the second-layer outer bag cutting device (9), and the second-layer outer bag cutting device (9) is connected to the second-layer outer bag box output unit (10).

2. Double-layer bag unpacking device, characterized in that: It comprises a double-layer outer bag feeding unit (1), a first-layer outer bag cutting unit (2), a first-layer outer bag box discharging unit (3), a nest box conveying component (7), a vacuum chamber component (8), a second-layer outer bag cutting device (9) and a second-layer outer bag box discharging unit (10); 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 first-layer outer bag box discharging unit (3), the first-layer outer bag box discharging unit (3) is connected to the nest box conveying assembly (7), the nest box conveying assembly (7) is connected to the second-layer outer bag cutting device (9), and the second-layer outer bag cutting device (9) is connected to the second-layer outer bag box discharging unit (10).

3. The double-layer bag unpacking device according to claim 2, characterized in that: It also comprises a nest box steering device (5), and the nest box steering device (5) is arranged between the first layer outer bag box discharging unit (3) and the nest box conveying assembly (7).

4. The double-layer bag unpacking device according to claim 3, characterized in that: It also comprises a visual inspection device (4); the visual inspection device (4) is also arranged between the first layer outer bag box discharging unit (3) and the nest box turning device (5).

5. The double-layer bag unpacking device according to claim 2, characterized in that: The first layer outer bag cutting unit (2) comprises a conveyor mesh belt assembly (26), wherein a cutting edge assembly (27) and a cutter operation assembly (25) are arranged on the front side of the conveyor mesh belt assembly (26); a clamping claw cylinder assembly (22) and a box pressing assembly (24) are arranged on the rear side; and a Y-direction box pushing assembly (21) is arranged at one end of the conveyor mesh belt assembly (26).

6. The double-layer bag unpacking device according to claim 5, characterized in that: The cutter operation component (25) is connected to a trimming recovery component (23).

7. An unpacking method for a single-layer bag unpacking device, characterized in that: The steps include: Step S1, preparing packaging materials; Step S2, single layer mode selection; Step S3, filling and stoppering machine; Step S4, nesting machine; Step S5, rotary rod labeling machine; Step S6, post-process packaging; Step S7, end production.

8. The unpacking method of the single-layer bag unpacking device according to claim 7, characterized in that: The step S2, single layer mode selection includes: Step S201, selecting a single-layer unpacking mode; Step S202, the packaging material enters from the single-layer outer bag feeding unit (6) - the nest box conveying component (7) - the second-layer outer bag cutting unit (9) - the second-layer outer bag box output unit (10) - the downstream process.

9. An unpacking method for a double-layer bag unpacking device, characterized in that: The steps include: Step S1, preparing packaging materials; Step S2, dual-layer mode selection; Step S3, filling and stoppering machine; Step S4, nesting machine; Step S5, rotary rod labeling machine; Step S6, post-process packaging; Step S7, end production.

10. The unpacking method of the double-layer bag unpacking device according to claim 9, characterized in that: The step S2, dual-layer mode selection includes: Step S21, selecting double-layer unpacking mode; Step S22, the packaging material enters from the double-layer outer bag feeding unit (1) - the first layer outer bag cutting unit (2) - the first layer outer bag box discharging unit (3) - the visual inspection device (4) - the nest box steering device (5) - the nest box conveying assembly (7) - the vacuum chamber assembly (8) - the second layer outer bag cutting device (9) - the second layer outer bag box discharging unit (10) - the downstream process.

11. The unpacking method of the double-layer bag unpacking device according to claim 10, characterized in that: When the visual inspection device (4) detects that the breathing paper ends of the double-layer outer packaging bag are in the same direction, the material is directly transferred to the nest box conveying component (7); When the visual inspection device (4) detects that the breathing paper ends of the double-layer outer packaging bag are facing each other, the material needs to pass through the nest box turning device (5) and then be transferred to the nest box conveying component (7).

Images