Automatic outer bag opening machine

Abstract

The utility model discloses an automatic outer bag disassembling machine which comprises a feeding conveying line, a detection mechanism is arranged at the feeding end of the feeding conveying line, a bag cutting mechanism is arranged at the discharging end of the feeding conveying line, a lifting conveying device is arranged on the feeding conveying line, and a waste conveying line is further arranged on one side of the feeding conveying line. A grabbing mechanism is movably arranged between the waste conveying line and the feeding conveying line, and the lifting conveying device is used for adjusting the position of an inner bag before bag cutting and dumping the bag after bag cutting. Compared with the prior art, the lifting conveying device achieves the functions that gaps are made at the front ends of the outer bags before the bags are cut and the bags are inverted after the bags are cut, and space can be reduced to the maximum extent. And secondly, under the cooperation of the detection mechanism, the bags can be cut more accurately. And after bag opening is completed, the outer bags are collected through the grabbing mechanism and the waste conveying line, a closed-loop automatic production line is formed, the labor cost is reduced, and the production efficiency is improved. The whole structure is compact and occupies a small space.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag disassembly, in particular to an automatic outer bag disassembly machine. Background Art

[0002] Woven bags and kraft paper bags are a very common form of material transfer packaging, which is widely used in pharmaceutical and food companies. Bag materials are generally divided into two layers, the inner packaging bag is a PE bag for direct filling of materials, and the outer packaging bag is a woven bag or a kraft paper bag, which is used to prevent damage and dust during transportation. During the use of bagged materials, the outer packaging bag needs to be detached in advance before it can be transported to the clean area to unpack the inner packaging bag for feeding. The patent application with publication number CN111559551A discloses an automatic unpacking method and device for express delivery flow bags, which unpacks bags containing express items, first obtains the bag image; based on the preset bag recognition algorithm, grabs the two feet of one side of the bag through the preset grabbing device, and lifts the bag to a preset height; then, identifies the bag unsealing mouth, and cuts the bag through the preset cutting device to complete the bag unsealing; identifies the uncut side of the bag; finally, grabs any foot of the uncut side of the bag through the preset grabbing device, and lifts the bag to a preset height to complete the bag inversion. After the bags are emptied, they are collected manually, which increases labor costs. Utility Model Content

[0003] The utility model provides an automatic outer bag removing machine, which is used to solve the problems of low efficiency and high labor cost caused by manual bag recovery in the existing bag removing process.

[0004] The utility model provides an automatic outer bag removing machine, comprising a feeding conveyor line, a feeding end of the feeding conveyor line is provided with a detection mechanism, a discharging end of the feeding conveyor line is provided with a bag cutting mechanism, a lifting conveying device is provided on the feeding conveyor line, a waste conveyor line is also provided on one side of the feeding conveyor line, and a grabbing mechanism is movably provided between the waste conveyor line and the feeding conveyor line.

[0005] Preferably, the lifting and conveying device is provided with a first suction cup for adsorbing the material to the conveying part.

[0006] Preferably, the lifting and conveying device further comprises a support frame and an electric cylinder, and one end of the conveying part is hinged to the support frame, and the other end is hinged to the electric cylinder.

[0007] Preferably, the lifting and conveying device further comprises a lifting cylinder and a base plate fixed on the lifting cylinder, the support frame is fixed on the base plate, and the lower end of the electric cylinder is hinged on the base plate.

[0008] Preferably, a driving component for driving the first suction cup to rise and fall is provided in the conveying part.

[0009] Preferably, it also includes a discharging conveying line, and the bag cutting mechanism is arranged between the discharging conveying line and the feeding conveying line.

[0010] Preferably, the bag cutting mechanism comprises a first cutter and a second cutter which are arranged opposite to each other, and the first cutter and the second cutter both move up and down along the frame.

[0011] Preferably, it further comprises a material grabbing mechanism, wherein the material grabbing mechanism is provided with a second suction cup capable of transverse movement and lifting.

[0012] Preferably, it also includes a rotatable roller, which is arranged between the conveying part and the discharge conveying line, and the roller rises and falls synchronously with the conveying part.

[0013] Preferably, it also includes a waste bag packaging system, which is connected to the discharge end of the waste conveying line.

[0014] Compared with the prior art, in the utility model, the lifting and conveying device realizes the functions of making space at the front end of the outer bag before cutting the bag and inverting the bag after cutting the bag, which can minimize the space. Secondly, with the cooperation of the detection mechanism, the bag can be cut more accurately, and the automatic bag unloading can also identify the situation of unsuccessful bag cutting. After the bag unloading is completed, the outer bag is collected by the grabbing mechanism and the waste conveying line to form a closed-loop automated production line, which reduces labor costs and is conducive to improving production efficiency. The whole structure is compact and occupies little space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the lifting and conveying device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of adjusting the position of the inner bag of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the bag cutting device of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the inverted inner bag of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of grabbing the outer bag of the utility model;

[0022] Figure 7 It is an enlarged schematic diagram of the structure of the utility model when cutting bags.

[0023] Reference numerals:

[0024] 1. Feed conveyor line, 100. Lifting conveyor device, 200. Bag cutting mechanism, 2. Detection mechanism, 3. Discharge conveyor line, 4. First suction cup, 5. Material, 6. Roller, 7. Frame, 8. Grabbing mechanism, 9. Waste conveyor line, 10. Waste bag packaging system, 11. Conveying part, 12. Support frame, 13. Electric cylinder, 14. Lifting cylinder, 15. Bottom plate, 16. First cutter, 17. Second cutter, 18. Inner bag, 19. Outer bag. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See attached Figure 1 The present embodiment provides an automatic outer bag removal machine, including a feed conveyor line 1, a detection mechanism 2 is provided at the feed end of the feed conveyor line 1, a bag cutting mechanism 200 is provided at the discharge end of the feed conveyor line 1, the detection mechanism 2 is used to cooperate with the bag cutting mechanism 200 to cut bags, a lifting conveying device 100 is provided on the feed conveyor line 1, a waste conveying line 9 is also provided on one side of the feed conveyor line 1, and a grabbing mechanism 8 is movably provided between the waste conveying line 9 and the feed conveyor line 1. The detection mechanism 2 is used to detect whether the material 5 is accurately conveyed to the bag cutting mechanism 200 and whether the material 5 is successfully cut. The lifting conveying device 100 is used to adjust the relative position of the outer bag 19 and the inner bag 18 of the material 5 and to pour the inner bag 18 out of the outer bag 19. The grabbing mechanism 8 moves to the top of the feed conveyor line 1 to grab the empty outer bag 19 and then place it on the waste conveyor line 9 for recycling. The specific process is as follows: the feed conveyor line 1 conveys the material 5 to the lifting conveyor 100, and the lifting conveyor 100 moves the inner bag 18 to the rear end of the outer bag 19 so as to make room for the front end of the outer bag 19. The material 5 is conveyed to the bag cutting mechanism 200 for bag cutting in cooperation with the detection mechanism 2. After the bag cutting is successful, the material 5 returns to the lifting conveyor 100, and the lifting conveyor 100 lifts the material 5 and then pours out the inner bag 18 in the outer bag 19. The lifting conveyor 100 lowers the material 5, and the grabbing mechanism 8 grabs the empty outer bag 19 for recycling.

[0027] As another embodiment of the present invention, the lifting and conveying device 100 is provided with a first suction cup 4 for sucking the material 5 to the conveying portion 11. The first suction cup 4 sucks the outer bag 19 to fix it on the conveying portion 11, so as to provide a guarantee for adjusting the position of the inner bag 18 in the outer bag 19 and pouring the inner bag 18 out of the outer bag 19.

[0028] As another embodiment of the present invention: Figure 3 The lifting and conveying device 100 further includes a support frame 12 and an electric cylinder 13. One end of the conveying part 11 is hinged on the support frame 12, and the other end is hinged on the electric cylinder 13. Specifically, the support frame 12 is located at the front end of the conveying part 11, and the electric cylinder 13 is located at the rear end of the conveying part 11. When the position of the inner bag 18 in the outer bag 19 needs to be adjusted, the piston rod of the electric cylinder 13 retracts to drive the rear end of the conveying part 11 to sink and the front end to tilt, and the inner bag 18 moves backward. When the inner bag 18 needs to be poured, the piston rod of the electric cylinder 13 extends to drive the rear end of the conveying part 11 to tilt and the front end to sink, and the inner bag 18 moves forward and slides out of the outer bag 19.

[0029] As another embodiment of the present invention: the lifting and conveying device 100 further includes a lifting cylinder 14 and a bottom plate 15 fixed to the upper end of the lifting cylinder 14, the support frame 12 is fixed to the bottom plate 15, and the lower end of the electric cylinder 13 is hinged to the bottom plate 15. The piston rod of the lifting cylinder 14 extends to drive the bottom plate 15 to rise, and the rise of the bottom plate 15 drives the support frame 12 and the electric cylinder 13 to rise synchronously, thereby driving the conveying part 11 to rise.

[0030] As another embodiment of the present invention: Figure 2 , a driving component for driving the first suction cup 4 to rise and fall is provided in the conveying part 11. The driving component drives the first suction cup 4 to rise and stick to the bottom of the outer bag 19, and then the first suction cup 4 draws a vacuum to suck the outer bag 19. After the first suction cup 4 breaks the vacuum, the driving component drives the first suction cup 4 to descend so as not to affect the conveying of the material 5. Specifically, the conveying part 11 includes a plurality of conveyor belts, and the first suction cup 4 is distributed between two conveyor belts. The first suction cup 4 is integrated on the conveying part 11, so that the lifting and conveying device 100 has a compact structure and occupies a small space. Secondly, it can better complete the adjustment of the position of the inner bag 18 and the bag inverting function.

[0031] As another embodiment of the present utility model: a bag head collecting box is provided below the bag cutting mechanism 200. After the bag cutting mechanism 200 cuts the bag, the cut bag heads fall into the bag head collecting box below.

[0032] As another implementation mode of the utility model: this embodiment also includes a discharging conveyor line 3, and the bag cutting mechanism 200 is arranged between the discharging conveyor line 3 and the feeding conveyor line 1, that is, the discharging conveyor line 3 is located in the discharging direction of the feeding conveyor line 1, and after the lifting and conveying device 100 pours out the inner bag 18 in the outer bag 19, the inner bag 18 falls onto the discharging conveyor line 3.

[0033] As another embodiment of the present invention: Figure 5 The present embodiment further includes a rotatable roller 6, which is disposed between the conveying portion 11 and the discharge conveying line 3, and the roller 6 and the conveying portion 11 are raised and lowered synchronously. When the inner bag 18 slides out of the outer bag 19, it falls onto the discharge conveying line 3 through the roller 6. The roller 6 between the lifting conveying device 100 and the discharge conveying line 3 plays a transition role, so that the inner bag 18 can smoothly fall onto the discharge conveying line 3.

[0034] One embodiment of the bag cutting mechanism 200: Figure 4 and attached Figure 7 The bag cutting mechanism 200 includes a first cutter 16 and a second cutter 17 which are arranged opposite to each other. The first cutter 16 and the second cutter 17 both move up and down along the frame 7. When the first cutter 16 and the second cutter 17 move toward each other, they cut off the end of the outer bag 19 to expose the inner bag 18. This arrangement can maximize the success rate of bag cutting, and the cuts are neat, which is convenient for subsequent bag pouring.

[0035] As another embodiment of the present invention: Figure 6 The present embodiment further comprises a material grabbing mechanism 8, which is provided with a second suction cup capable of lateral movement and elevation. After the inner bag 18 is poured out, the first suction cup 4 breaks the vacuum, and the second suction cup moves to the top of the outer bag 19, descends to suck the outer bag 19, and then rises to the top of the waste conveying line 9 to place the outer bag 19 thereon.

[0036] As another implementation mode of the utility model: this embodiment also includes a waste bag packaging system 10, which is connected to the discharge end of the waste conveying line 9. The waste conveying line 9 is used to stack the waste bags grabbed by the grabbing mechanism 8, and the waste bag packaging system 10 is used to pack the stacked waste bags transported by the waste conveying line 9.

[0037] As another embodiment of the present invention: a feeding conveying line 1, a lifting conveying device 100, a bag cutting mechanism 200 and a discharging conveying line 3 are distributed on both sides of the waste conveying line 9. The double station is used for bag cutting, which is conducive to improving the bag cutting efficiency.

[0038] The utility model provides a working process of an automatic outer bag removing machine:

[0039] Step 1: The material 5 is transported from the feed conveyor line 1 to the conveying part 11 of the lifting conveying device 100. The first suction cup 4 sucks the outer bag 19 of the material 5 to fix it on the conveying part 11. Then the conveying part 11 is tilted (the front end of the conveying part 11 is tilted) to move the inner bag 18 to the rear end of the outer bag 19, leaving a gap at the front end of the outer bag 19. This design enables the inner bag 18 to move smoothly to the rear end of the outer bag 19.

[0040] Step 2: The conveying part 11 becomes horizontal, the first suction cup 4 is closed, and the material 5 is conveyed to the bag cutting mechanism 200 with the cooperation of the detection mechanism 2;

[0041] Step 3: The end of the outer bag 19 is cut off by the cutter, the material 5 returns to the conveying part 11, the conveying part 11 rises, the first suction cup 4 sucks the outer bag 19 and then the conveying part 11 tilts (the rear end of the conveying part 11 is tilted) so that the inner bag 18 slides out of the outer bag 19, passes through the roller 6 and falls onto the discharge conveyor line 3.

[0042] Step 4: The first suction cup 4 breaks the vacuum, and the grabbing mechanism 8 grabs the waste bag to the waste conveying line 9. Specifically, the conveying part 11 becomes horizontal, the conveying part 11 descends, the first suction cup 4 is closed, and the second suction cup moves to the top of the conveying part 11 to suck the outer bag 19, and then the waste bag is moved to the waste conveying line 9 by the second suction cup for stacking.

[0043] In step 2, the detection mechanism 2 transports the outer bag 19 to below the cutter by identifying the front end mark of the outer bag 19 .

[0044] The following steps are also included between step 2 and step 3: when the cutter completes the bag cutting action, the detection mechanism 2 identifies the front end mark of the outer bag 19, which means that the outer bag 19 has not been cut. After the outer bag 19 has not been cut, the material 5 is transported to the bottom of the cutter for bag cutting again. If the end of the outer bag 19 is cut off within the preset bag cutting times, the bag cutting is successful, otherwise the bag cutting fails, and the material 5 is transported to the material discharge conveyor line 3 to perform the waste rejection process. In the process of cutting the outer bag 19, the detection mechanism 2 can also identify the situation where the inner bag 18 is cut to cause the material 5 to leak.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic outer bag removing machine, characterized in that: The invention comprises a feeding conveyor line (1), wherein a detection mechanism (2) is provided at the feeding end of the feeding conveyor line (1), a bag cutting mechanism (200) is provided at the discharging end of the feeding conveyor line (1), a lifting conveying device (100) is provided on the feeding conveyor line (1), a waste conveyor line (9) is also provided on one side of the feeding conveyor line (1), and a material grabbing mechanism (8) is movably provided between the waste conveyor line (9) and the feeding conveyor line (1).

2. The automatic outer bag removing machine according to claim 1, characterized in that: The lifting and conveying device (100) is provided with a first suction cup (4) for sucking the material (5) onto the conveying part (11).

3. The automatic outer bag removing machine according to claim 2, characterized in that: The lifting and conveying device (100) further comprises a support frame (12) and an electric cylinder (13); one end of the conveying part (11) is hinged on the support frame (12), and the other end is hinged on the electric cylinder (13).

4. The automatic outer bag removing machine according to claim 3, characterized in that: The lifting and conveying device (100) further comprises a lifting cylinder (14) and a base plate (15) fixed on the lifting cylinder (14), the support frame (12) is fixed on the base plate (15), and the lower end of the electric cylinder (13) is hinged on the base plate (15).

5. The automatic outer bag removing machine according to claim 4, characterized in that: The conveying part (11) is provided with a driving component for driving the first suction cup (4) to rise and fall.

6. The automatic outer bag removing machine according to claim 2, characterized in that: It also includes a discharge conveyor line (3), and the bag cutting mechanism (200) is arranged between the discharge conveyor line (3) and the feed conveyor line (1).

7. The automatic outer bag removing machine according to claim 1, characterized in that: The bag cutting mechanism (200) comprises a first cutter (16) and a second cutter (17) which are arranged opposite to each other, and the first cutter (16) and the second cutter (17) both move up and down along the frame (7).

8. The automatic outer bag removing machine according to claim 1, characterized in that: It also comprises a material grabbing mechanism (8), wherein the material grabbing mechanism (8) is provided with a second suction cup capable of transverse movement and lifting.

9. The automatic outer bag removing machine according to claim 6, characterized in that: It also comprises a rotatable roller (6), wherein the roller (6) is arranged between the conveying part (11) and the material discharging conveying line (3), and the roller (6) and the conveying part (11) rise and fall synchronously.

10. The automatic outer bag removing machine according to claim 1, characterized in that: It also includes a waste bag packaging system (10), which is connected to the discharge end of the waste conveying line (9).

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