Ton bag lifting and sucking device suitable for stacking and placing condition of ton bags

Abstract

The utility model discloses a ton bag lifting and sucking device suitable for the condition that ton bags are stacked and placed. Comprising a bag storage rack, a ton bag stacking and placing platform arranged at the upper end of the bag storage rack, a bag taking and lifting mechanism arranged above the ton bag stacking and placing platform, a cross beam arranged at the lower end of the bag taking and lifting mechanism, a first cantilever, a second cantilever, a first suction cup mounting plate arranged at the lower end of the first cantilever and a second suction cup mounting plate arranged at the lower end of the second cantilever, the second suction cup mounting plate is arranged at the lower end of the second cantilever; the vacuum suction cups are arranged on the first suction cup mounting plate and the second suction cup mounting plate respectively; a first elastic connecting assembly used for achieving elastic floating and lifting of the first suction cup mounting plate is arranged between the first cantilever and the first suction cup mounting plate, and a second elastic connecting assembly used for achieving elastic floating and lifting of the second suction cup mounting plate is arranged between the second cantilever and the second suction cup mounting plate. According to the utility model, the adaptability and reliability of bag taking operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ton bag automatic packaging machines, in particular to a ton bag lifting and sucking device adapted to the situation where ton bags are stacked and placed. Background Art

[0002] At present, the ton bag packaging machines on the market are mainly semi-automatic ton bag packaging machines. During operation, manual bag picking, bag opening and bag hanging are required in advance. After the bags are hung on the packaging machine, the packaging machine will automatically add quantitative materials. After the adding is completed, the filled ton bag will be transferred to the conveyor and then sent to the next workstation for bag opening closing.

[0003] In response to the above problems, our company has developed a fully automatic packaging machine for solid fluids and applied for a patent. The fully automatic packaging machine for solid fluids can realize fully automatic operations such as bag taking, bag opening, bagging, bag clamping, weighing, loading, sealing, and dust removal. At present, the invention patents related to fully automatic packaging machines for solid fluids that have been authorized include: an invention patent for a composite weighing and packaging method for a fully automatic packaging machine for solid fluids with an authorization announcement number of CN116534316B, and an invention patent for a fully automatic packaging machine for solid fluids and an automatic bagging and packaging method with an authorization announcement number of CN 116424652 B.

[0004] However, the above patent still has the following aspects that deserve further improvement. The main aspect is that the bag taking mechanism adopts an integrated lifting method to suck up ton bags, which is usually used for ton bags of equal thickness or with little difference in thickness but stacked in small quantities. When there are differences in the thickness of ton bags and a large number of stacked bags, a large height difference will be accumulated, making it difficult to suck up ton bags, and they can only be placed manually in small batches. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes a ton bag lifting and suction device adapted to the stacking of ton bags, aiming to improve the adaptability and reliability of bag taking operations under the stacking of ton bags. The specific technical solution is as follows:

[0006] A ton bag lifting and suction device adapted to the stacking of ton bags, comprising a bag storage rack, a ton bag stacking platform arranged at the upper end of the bag storage rack for stacking ton bags, a bag taking and lifting mechanism arranged above the ton bag stacking platform, a crossbeam arranged at the lower end of the bag taking and lifting mechanism, a first cantilever arranged vertically downward at one end of the crossbeam, a second cantilever arranged vertically downward at the other end of the crossbeam, a first suction cup mounting plate arranged at the lower end of the first cantilever, a second suction cup mounting plate arranged at the lower end of the second cantilever, a plurality of vacuum suction cups arranged on the first suction cup mounting plate for sucking the bag mouth of the ton bag, and a plurality of vacuum suction cups arranged on the second suction cup mounting plate for sucking the main body of the ton bag; wherein a first elastic connection component for realizing elastic floating lifting of the first suction cup mounting plate is arranged between the first cantilever and the first suction cup mounting plate, and a second elastic connection component for realizing elastic floating lifting of the second suction cup mounting plate is arranged between the second cantilever and the second suction cup mounting plate.

[0007] The vacuum suction cup on the first suction cup mounting plate is used to suck the bag opening of the ton bag, and the vacuum suction cup on the second suction cup mounting plate is used to suck the main body of the ton bag.

[0008] Preferably, the first elastic connection component includes a first connecting plate arranged at the lower end of the first cantilever, a plurality of guide holes opened on the first connecting plate, and a plurality of guide rods erected upwardly on the first suction cup mounting plate, the guide rods correspondingly penetrate into the guide holes on the first connecting plate and are slidably connected with the guide holes, the lower ends of the guide rods are fixedly connected to the first suction cup mounting plate, a limiting boss is arranged on the upper end of the guide rod, a compression spring is arranged on the outer circle of the guide rod, the upper end of the compression spring supports the first connecting plate, and the lower end supports the first suction cup mounting plate.

[0009] Preferably, the second elastic connection component includes a second connecting plate arranged at the lower end of the second cantilever, a plurality of guide holes opened on the second connecting plate, and a plurality of guide rods erected upwardly on the second suction cup mounting plate, the guide rods correspondingly penetrate into the guide holes on the second connecting plate and are slidably connected with the guide holes, the lower ends of the guide rods are fixedly connected to the second suction cup mounting plate, a limiting boss is arranged on the upper end of the guide rod, a compression spring is arranged on the outer circle of the guide rod, the upper end of the compression spring supports the second connecting plate, and the lower end supports the second suction cup mounting plate.

[0010] In the utility model, a sensor bracket is arranged on the first suction cup mounting plate, and a first proximity sensor for sensing the elastic floating of the first suction cup mounting plate is installed on the sensor bracket, and the sensing probe of the first proximity sensor is aligned with the side surface of one side of the first connecting plate.

[0011] In the utility model, a sensor bracket is arranged on the second suction cup mounting plate, and a second proximity sensor for sensing the elastic floating of the second suction cup mounting plate is installed on the sensor bracket, and the sensing probe of the second proximity sensor is aligned with the side surface of one side of the second connecting plate.

[0012] Preferably, the bag taking and lifting mechanism is a lifting cylinder, and the crossbeam is fixed to the lower end of the piston rod of the lifting cylinder.

[0013] In the utility model, a movable base is arranged above the ton bag stacking and placing platform, and the shell of the lifting cylinder is fixed on the movable base.

[0014] Preferably, the lifting cylinder is a multi-axis lifting cylinder.

[0015] As a further improvement of the present invention, the ton bag stacking platform includes a first platform and a second platform which are respectively arranged on the bag storage rack and are adjacent to each other; wherein, the first platform is lifted up and down by a first lifting mechanism arranged on the bag storage rack, and the second platform is lifted up and down by a second lifting mechanism arranged on the bag storage rack.

[0016] Among them, the first lifting mechanism is used for lifting the bag mouth of the ton bag, and the second lifting mechanism is used for lifting the main body of the ton bag.

[0017] Preferably, the first lifting mechanism is a double-axis cylinder, and the second lifting mechanism is a ball screw driven by a servo motor.

[0018] In the utility model, a bag opening positioning device is arranged on the first platform, and the bag opening positioning device comprises four positioning columns which are vertically arranged on the first platform.

[0019] Preferably, the positions of the four positioning columns on the first platform are adjustable.

[0020] Preferably, a ton bag sensing switch is provided on at least one of the four positioning columns of the first platform.

[0021] In the utility model, a transportable wooden tray is arranged on the second platform.

[0022] Wherein, when the first platform and the second platform are in the initial positions, the upper plane of the first platform is at the same height as the upper plane of the wooden support.

[0023] The operating principle of the utility model is as follows:

[0024] The first platform and the second platform move to the lowest position, and adjust the spacing of the positioning columns according to the size of the bag opening of the ton bag so that the spacing between the positioning columns on both sides is slightly larger than the bag opening of the ton bag. After fixing the positioning columns, start to stack the ton bags. When the stacked thickness of the ton bags is flush with the top of the positioning columns, the loading is completed; press the start button, and the bag lifting mechanism drives the crossbeam down to the set position. After it is in place, the second lifting mechanism drives the second platform to rise, and the ton bag body contacts the vacuum suction cup on the second suction cup mounting plate and compresses the compression spring on the second elastic connection assembly. The second suction cup mounting plate rises, and when it reaches a certain value, the second proximity sensor located on the second suction cup mounting plate senses the relative displacement with the second connecting plate, so that the second proximity sensor senses closure. After a signal is given, the second lifting mechanism stops lifting; the first lifting mechanism starts lifting, thereby driving the first platform to rise, the mouth of the ton bag contacts the vacuum suction cup on the first suction cup mounting plate and compresses the compression spring on the first elastic connection assembly, the first suction cup mounting plate rises, and when it reaches a certain value, the first proximity sensor located on the first suction cup mounting plate senses the relative displacement with the first connection plate, the first proximity sensor senses closure, gives a signal, and the first lifting mechanism stops (the cylinder is controlled by a three-position five-way center sealing valve); the vacuum is turned on, at this time, the vacuum suction cups on the first suction cup mounting plate and the second suction cup mounting plate respectively suck the mouth of the ton bag and the main body of the ton bag, and then the bag-taking lifting mechanism moves upward to complete the bag taking; the sucked ton bag is subsequently moved to the bag opening station of the packaging machine. This cycle is repeated to achieve continuous bag taking, and when the ton bag is used up, the ton bag sensing switch senses closure, gives a signal, and alarms.

[0025] Using the above bag taking method,

[0026] The beneficial effects of the utility model are:

[0027] First, the utility model is a ton bag lifting and suction device suitable for stacking ton bags. The first suction cup mounting plate and the second suction cup mounting plate are respectively provided with elastic connection components, which can realize the lifting of the ton bag body and the bag mouth respectively, thereby effectively compensating for the height difference between the front and rear positions of the stacked ton bags, and improving the adaptability and reliability of the bag taking operation.

[0028] Secondly, the utility model provides a ton bag lifting and suction device suitable for stacking ton bags. The first suction cup mounting plate and the second suction cup mounting plate are respectively provided with proximity sensors, which can ensure that no matter how much the front-to-back height difference between the bag mouth and the ton bag body is after the ton bags are stacked, when the bags are finally taken out, the entire ton bag is in a horizontal state, thereby further improving the reliability of the bag taking operation.

[0029] Thirdly, the utility model is a ton bag lifting and suction device adapted to the situation where ton bags are stacked and placed. A ton bag sensing switch is arranged on the positioning column, which can realize an automatic alarm function after the ton bags are used up. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural schematic diagram of a ton bag lifting and sucking device of the utility model which is suitable for stacking ton bags;

[0031] Figure 2 yes Figure 1 A partial enlarged view of the upper part of the .

[0032] In the figure: 1. bag storage rack, 2. ton bag, 3. ton bag stacking platform, 4. bag retrieval lifting mechanism, 5. crossbeam, 6. first cantilever, 7. second cantilever, 8. first suction cup mounting plate, 9. second suction cup mounting plate, 10. vacuum suction cup, 11. first elastic connecting component, 12. second elastic connecting component, 13. first connecting plate, 14. wooden support, 15. guide rod, 16. limiting boss, 17. compression spring, 18. second connecting plate, 19. sensor bracket, 20. first proximity sensor, 21. second proximity sensor, 22. mobile base, 23. first platform, 24. second platform, 25. first lifting mechanism, 26. second lifting mechanism, 27. positioning column, 28. ton bag induction switch. DETAILED DESCRIPTION

[0033] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0034] like Figures 1 to 2The utility model is shown as an embodiment of a ton bag lifting and sucking device adapted to the stacking of ton bags, comprising a bag storage rack 1, a ton bag stacking and placing platform 3 arranged at the upper end of the bag storage rack 1 for stacking ton bags 2, a bag taking and lifting mechanism 4 arranged above the ton bag stacking and placing platform 3, a crossbeam 5 arranged at the lower end of the bag taking and lifting mechanism 4, a first cantilever 6 erected downwardly at one end of the crossbeam 5, a second cantilever 7 erected downwardly at the other end of the crossbeam 5, a first suction cup mounting plate 8 arranged at the lower end of the first cantilever 6, and a suction cup mounting plate 8 arranged at the lower end of the second cantilever 7. A second suction cup mounting plate 9 at the lower end, a plurality of vacuum suction cups 10 arranged on the first suction cup mounting plate 8 for sucking the bag mouth of the ton bag, and a plurality of vacuum suction cups 10 arranged on the second suction cup mounting plate 9 for sucking the main body of the ton bag; wherein, a first elastic connection component 11 for realizing elastic floating lifting of the first suction cup mounting plate 8 is arranged between the first cantilever 6 and the first suction cup mounting plate 8, and a second elastic connection component 12 for realizing elastic floating lifting of the second suction cup mounting plate 9 is arranged between the second cantilever 7 and the second suction cup mounting plate 9.

[0035] The vacuum suction cup 10 on the first suction cup mounting plate 8 is used to suck the bag opening of the ton bag 2 , and the vacuum suction cup 10 on the second suction cup mounting plate 9 is used to suck the main body of the ton bag 2 .

[0036] Preferably, the first elastic connection component 11 includes a first connecting plate 13 provided at the lower end of the first cantilever 6, a plurality of guide holes opened on the first connecting plate 13, and a plurality of guide rods 15 uprightly provided on the first suction cup mounting plate 8, the guide rods 15 correspondingly penetrate into the guide holes on the first connecting plate 13 and are slidably connected with the guide holes, the lower ends of the guide rods 15 are fixedly connected to the first suction cup mounting plate 8, the upper ends of the guide rods 15 are provided with a limiting boss 16, and a compression spring 17 is arranged on the outer circle of the guide rod 15, the upper end of the compression spring 17 supports the first connecting plate 13, and the lower end supports the first suction cup mounting plate 8.

[0037] Preferably, the second elastic connection component 12 includes a second connecting plate 18 provided at the lower end of the second cantilever 7, a number of guide holes opened on the second connecting plate 18, and a number of guide rods 15 uprightly provided on the second suction cup mounting plate 9, the guide rods 15 correspondingly penetrate into the guide holes on the second connecting plate 18 and are slidably connected with the guide holes, the lower ends of the guide rods 15 are fixedly connected to the second suction cup mounting plate 9, the upper ends of the guide rods 15 are provided with a limiting boss 16, and a compression spring 17 is arranged on the outer circle of the guide rod 15, the upper end of the compression spring 17 supports the second connecting plate 18, and the lower end supports the second suction cup mounting plate 9.

[0038] In this embodiment, a sensor bracket 19 is provided on the first suction cup mounting plate 8, and a first proximity sensor 20 for sensing the elastic floating of the first suction cup mounting plate 8 is installed on the sensor bracket 19, and the sensing probe of the first proximity sensor 20 is aligned with the side of one side of the first connecting plate 13.

[0039] In this embodiment, a sensor bracket 19 is provided on the second suction cup mounting plate 9, and a second proximity sensor 21 for sensing the elastic floating of the second suction cup mounting plate 9 is installed on the sensor bracket 19, and the sensing probe of the second proximity sensor 21 is aligned with the side of one side of the second connecting plate 18.

[0040] Preferably, the bag taking lifting mechanism 4 is a lifting cylinder, and the crossbeam 5 is fixed to the lower end of the piston rod of the lifting cylinder.

[0041] In this embodiment, a movable base 22 is provided above the ton bag stacking platform 3 , and the shell of the lifting cylinder is fixed on the movable base 22 .

[0042] Preferably, the lifting cylinder is a multi-axis lifting cylinder.

[0043] As a further improvement of this embodiment, the ton bag stacking platform 3 includes a first platform 23 and a second platform 24 which are respectively arranged on the bag storage rack 1 and are adjacent to each other; wherein the first platform 23 is lifted up and down by a first lifting mechanism 25 arranged on the bag storage rack 1, and the second platform 24 is lifted up and down by a second lifting mechanism 26 arranged on the bag storage rack 1.

[0044] The first lifting mechanism 25 is used to lift the mouth of the ton bag, and the second lifting mechanism 26 is used to lift the main body of the ton bag.

[0045] Preferably, the first lifting mechanism 25 is a double-axis cylinder, and the second lifting mechanism 26 is a ball screw driven by a servo motor.

[0046] In this embodiment, a bag opening positioning device is disposed on the first platform 23 , and the bag opening positioning device includes four positioning columns 27 vertically disposed on the first platform 23 .

[0047] Preferably, the positions of the four positioning columns 27 on the first platform 23 are adjustable.

[0048] Preferably, a ton bag sensing switch 28 is provided on at least one of the four positioning columns 27 of the first platform 23 .

[0049] In this embodiment, a transportable wooden pallet 14 is disposed on the second platform 24 .

[0050] When the first platform 23 and the second platform 24 are in the initial positions, the upper plane of the first platform 23 is at the same height as the upper plane of the wooden support 14 .

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A ton bag lifting and suction device adapted to the stacking of ton bags, characterized in that: The bag-taking and lifting mechanism comprises a bag storage rack, a ton bag stacking and placing platform arranged at the upper end of the bag storage rack for stacking ton bags, a bag-taking and lifting mechanism arranged above the ton bag stacking and placing platform, a crossbeam arranged at the lower end of the bag-taking and lifting mechanism, a first cantilever arranged downwardly at one end of the crossbeam, a second cantilever arranged downwardly at the other end of the crossbeam, a first suction cup mounting plate arranged at the lower end of the first cantilever, a second suction cup mounting plate arranged at the lower end of the second cantilever, a plurality of vacuum suction cups arranged on the first suction cup mounting plate for sucking the bag mouth of the ton bag, and a plurality of vacuum suction cups arranged on the second suction cup mounting plate for sucking the main body of the ton bag; wherein, a first elastic connection component for realizing elastic floating lifting of the first suction cup mounting plate is arranged between the first cantilever and the first suction cup mounting plate, and a second elastic connection component for realizing elastic floating lifting of the second suction cup mounting plate is arranged between the second cantilever and the second suction cup mounting plate.

2. The ton bag lifting and suction device adapted to the stacking of ton bags according to claim 1 is characterized in that: The first elastic connection component includes a first connecting plate at the lower end of the first cantilever, a plurality of guide holes provided on the first connecting plate, and a plurality of guide rods uprightly provided on the first suction cup mounting plate, the guide rods correspondingly penetrate into the guide holes on the first connecting plate and are slidably connected with the guide holes, the lower ends of the guide rods are fixedly connected to the first suction cup mounting plate, the upper ends of the guide rods are provided with a limiting boss, and a compression spring is arranged on the outer circle of the guide rod, the upper end of the compression spring supports the first connecting plate, and the lower end supports the first suction cup mounting plate.

3. The ton bag lifting and suction device adapted to the stacking of ton bags according to claim 1 is characterized in that: The second elastic connection component includes a second connecting plate at the lower end of the second cantilever, a plurality of guide holes provided on the second connecting plate, and a plurality of guide rods uprightly provided on the second suction cup mounting plate, the guide rods correspondingly penetrate into the guide holes on the second connecting plate and are slidably connected with the guide holes, the lower ends of the guide rods are fixedly connected to the second suction cup mounting plate, the upper ends of the guide rods are provided with a limiting boss, and a compression spring is arranged on the outer circle of the guide rod, the upper end of the compression spring supports the second connecting plate, and the lower end supports the second suction cup mounting plate.

4. The ton bag lifting and suction device adapted to the stacking of ton bags according to claim 2 is characterized in that: A sensor bracket is provided on the first suction cup mounting plate, and a first proximity sensor for sensing the elastic floating of the first suction cup mounting plate is installed on the sensor bracket. The sensing probe of the first proximity sensor is aligned with the side surface of one side of the first connecting plate.

5. The device for lifting and sucking ton bags according to claim 3, which is suitable for stacking ton bags, is characterized in that: A sensor bracket is provided on the second suction cup mounting plate, and a second proximity sensor for sensing the elastic floating of the second suction cup mounting plate is installed on the sensor bracket, and a sensing probe of the second proximity sensor is aligned with the side surface of one side of the second connecting plate.

6. The device for lifting and sucking ton bags according to claim 1, which is suitable for stacking ton bags, is characterized in that: The bag taking and lifting mechanism is a lifting cylinder, and the crossbeam is fixed to the lower end of the piston rod of the lifting cylinder.

7. The device for lifting and sucking ton bags according to claim 6, which is suitable for stacking ton bags, is characterized in that: A movable base is arranged above the ton bag stacking and placing platform, and the shell of the lifting cylinder is fixed on the movable base.

8. The device for lifting and sucking ton bags according to claim 1, which is suitable for stacking ton bags, is characterized in that: The ton bag stacking platform includes a first platform and a second platform respectively arranged on the bag storage rack and adjacent to each other; wherein the first platform is lifted up and down by a first lifting mechanism arranged on the bag storage rack, and the second platform is lifted up and down by a second lifting mechanism arranged on the bag storage rack.

9. The device for lifting and sucking ton bags according to claim 8, which is suitable for stacking ton bags, is characterized in that: The first platform is provided with a bag opening positioning device, and the bag opening positioning device comprises four positioning columns vertically arranged on the first platform.

10. The device for lifting and sucking ton bags according to claim 9, which is suitable for stacking ton bags, is characterized in that: At least one of the four positioning columns of the first platform is provided with a ton bag sensing switch.

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