Rotatable negative pressure stacking suction cup for grabbing woven bags

Abstract

The rotatable negative-pressure stacking suction cup comprises an installation base, a lifting part, a negative-pressure air pipe and suction cup assemblies, the lifting part is connected with the top of the installation base, and the two ends of the bottom of the installation base are each provided with one suction cup assembly comprising a connecting base, a rotating shaft, a driving device, an installation base, an air distribution device and a negative-pressure suction cup. The connecting seat is connected with the mounting base, the rotating shaft is rotatably connected to the bottom of the connecting seat and provided with a ventilation cavity and a first air outlet pipe, the driving device is in transmission connection with the rotating shaft, the mounting seat is connected with the rotating shaft, and the air distribution device is provided with an air inlet and a plurality of second air outlet pipes. And one end of the negative-pressure air pipe is connected with a negative-pressure air source, the other end of the negative-pressure air pipe is connected with the ventilation cavity and the air inlet, and the technical problems that in the prior art, due to the fact that woven bags are manually taken out and then stacked, the labor intensity is large, the labor cost is high, and the stacking efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cargo conveying equipment, in particular to a rotatable negative pressure stacking suction cup for grabbing woven bags. Background Art

[0002] Woven bags are generally made of polyethylene and polypropylene, which are extruded and stretched into flat wires, and then woven, braided and bag-made. At present, plastic woven bags are mainly used for agricultural product packaging, cement bag packaging, food packaging, geotechnical engineering, tourism transportation, flood control materials, etc.

[0003] After production, woven bags need to be taken out from the conveying mechanism for palletizing. Currently, most of the woven bags are taken out from the conveying mechanism manually. However, the method of manually taking out the woven bags from the conveying mechanism and then palletizing them is not only labor-intensive and increases a lot of labor costs, but also has low palletizing efficiency and is not suitable for large-scale promotion and use. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a rotatable negative pressure stacking suction cup for grabbing woven bags, which is used to solve the technical problem that the prior art adopts the method of manually taking out the woven bags from the conveying mechanism and then stacking the woven bags, which is not only labor-intensive and increases a lot of labor costs, but also has low stacking efficiency.

[0005] To achieve the above objectives, the present application embodiment adopts the following technical solutions:

[0006] A rotatable negative pressure stacking suction cup for grabbing woven bags, used for grabbing woven bags on a conveying mechanism in batches, comprising a mounting base, a lifting part, a negative pressure air pipe and a suction cup assembly;

[0007] The lifting part is connected to the top of the mounting base;

[0008] The two opposite ends of the bottom of the mounting base are each provided with a suction cup assembly, and the suction cup assembly includes a connecting seat, a rotating shaft, a driving device, a mounting seat, an air distribution device and a plurality of negative pressure suction cups;

[0009] The connecting seat is connected to the mounting base, the rotating shaft passes through the bottom of the connecting seat and is rotatably connected to the connecting seat, a ventilation cavity is provided in the rotating shaft, and a plurality of first air outlet pipes connected to the ventilation cavity are provided on the outer peripheral side of the rotating shaft, the driving device is provided on the connecting seat and is transmission-connected to the rotating shaft, the mounting seat is connected to an end of the rotating shaft away from the connecting seat, the air distribution device is installed on the top of the mounting seat, an air inlet and a plurality of second air outlet pipes are provided on the mounting seat, and a plurality of negative pressure suction cups are all installed on the mounting seat, and an air inlet hole is provided on the negative pressure suction cup, and the plurality of air inlet holes are respectively connected to the first air outlet pipe and the second air outlet pipe one by one;

[0010] One end of the negative pressure air tube is connected to the negative pressure air source, and the other end is connected to the ventilation cavity and the air inlet at the same time.

[0011] In a rotatable negative pressure palletizing suction cup for grabbing woven bags described in an embodiment of the present application, the driving device includes a first gear, a second gear and a driving motor;

[0012] The first gear and the second gear are both disposed inside the connecting seat, and the first gear is meshed with the second gear;

[0013] The first gear is connected to the rotating shaft;

[0014] The second gear is connected to the output end of the driving motor, and the driving motor is arranged on the upper end surface of the connecting seat.

[0015] In a rotatable negative pressure palletizing suction cup for grabbing woven bags described in an embodiment of the present application, the mounting seat includes a mounting seat body, a first mounting shaft, a second mounting shaft, and a plurality of suction cup seats;

[0016] The top end of the mounting seat body is connected to the rotating shaft;

[0017] The first installation axis and the second installation axis are respectively connected to opposite ends of the installation seat body, and the first installation axis and the second installation axis are parallel and parallel to the horizontal plane;

[0018] A plurality of suction cup seats are slidably connected to the first installation shaft and the second installation shaft, and the bottom ends of the suction cup seats are connected to the negative pressure suction cup.

[0019] A plurality of suction cup seats are slidably connected to the first installation shaft and the second installation shaft, and the bottom ends of the suction cup seats are connected to the negative pressure suction cup.

[0020] In the rotatable negative pressure palletizing suction cup for grabbing woven bags described in an embodiment of the present application, the number of the first installation shaft and the number of the second installation shaft are both two;

[0021] The two first mounting axes are arranged in parallel at one end of the mounting seat body, the plane where the two first mounting axes are located is perpendicular to the horizontal plane, and the two second mounting axes are arranged in parallel at the other end of the mounting seat body opposite to the two first mounting axes, and the plane where the two second mounting axes are located is perpendicular to the horizontal plane;

[0022] The suction cup seat is slidably connected to the two first mounting shafts or the two second mounting shafts.

[0023] In a rotatable negative pressure stacking suction cup for grabbing woven bags described in an embodiment of the present application, the mounting seat also includes a plurality of shock-absorbing springs, and the two ends of the shock-absorbing springs are respectively connected to the suction cup seat and the negative pressure suction cup.

[0024] In a rotatable negative pressure stacking suction cup for grabbing woven bags described in an embodiment of the present application, a mounting groove is provided at the bottom of the mounting base;

[0025] The connecting seat is connected to the mounting base through the mounting groove.

[0026] In the rotatable negative pressure stacking suction cup for grabbing woven bags described in the embodiment of the present application, a switch control component is also included, and the switch control component includes a PLC controller and a plurality of solenoid valves;

[0027] The plurality of solenoid valves are respectively arranged on the first air outlet pipe and the second air outlet pipe to control the opening and closing of the first air outlet pipe and the second air outlet pipe;

[0028] The plurality of solenoid valves are all electrically connected to the PLC controller.

[0029] In a rotatable negative pressure stacking suction cup for grabbing woven bags described in an embodiment of the present application, the switch control assembly further includes a plurality of negative pressure sensors;

[0030] Each of the negative pressure sensors is disposed in a negative pressure suction cup;

[0031] The plurality of negative pressure sensors are all electrically connected to the PLC controller.

[0032] In a rotatable negative pressure stacking suction cup for grabbing woven bags described in an embodiment of the present application, the lifting part includes a first lifting platform, a second lifting platform, a first hydraulic cylinder, a second hydraulic cylinder and a guide column;

[0033] The first lifting platform abuts against the top of the mounting base;

[0034] The second lifting platform abuts against the top of the first lifting platform;

[0035] The cylinder sleeve of the first hydraulic cylinder is fixedly connected to an end of the first lifting platform away from the mounting base, and the piston rod of the first hydraulic cylinder passes through the first lifting platform and is connected to the mounting base;

[0036] The cylinder sleeve of the second hydraulic cylinder is fixedly connected to an end of the second lifting platform away from the first lifting platform, and the piston rod of the second hydraulic cylinder passes through the second lifting platform and is connected to the first lifting platform;

[0037] A guide column is disposed at both ends of the top of the mounting base, and the guide column passes through the first lifting platform and the second lifting platform in sequence.

[0038] In the rotatable negative pressure stacking suction cup for grabbing woven bags described in the embodiment of the present application, the lifting part further includes a first limit plate and a second limit plate;

[0039] The first limit plate is connected to the top of the second lifting platform and is slidably sleeved on the two guide columns. The first limit plate is provided with a first through slot for the first hydraulic cylinder and the second hydraulic cylinder to pass through.

[0040] The second limiting plate is connected to the top ends of the two guide columns, and is provided with a second through slot for the second hydraulic cylinder to pass through.

[0041] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0042] 1. The lifting part is set to drive the mounting base to drive the suction cup assembly to move up and down, and the driving device drives the rotating shaft to rotate, thereby driving the mounting seat and a plurality of negative pressure suction cups to rotate, so as to more accurately align the woven bags on the conveying mechanism. A plurality of woven bags on the conveying mechanism are sucked by a plurality of negative pressure suction cups each time, which solves the technical problem that the method of manually taking out the woven bags from the conveying mechanism and then stacking the woven bags in the prior art is not only labor-intensive, but also increases a lot of labor costs, and the stacking efficiency is low.

[0043] 2. By setting the suction cup seat to be slidably connected with the first mounting shaft or the second mounting shaft, the suction cup seat can slide with the negative pressure suction cup in the axial direction of the first mounting shaft or the second mounting shaft, thereby adjusting the distance between several negative pressure suction cups, thereby improving the practicality of the present application.

[0044] 3. By arranging solenoid valves on the first air outlet pipe and the second air outlet pipe, and electrically connecting the solenoid valves to the PLC controller, the staff can control the working state of any negative pressure suction cup as needed, thereby improving the flexibility of the present application.

[0045] 4. By setting a negative pressure sensor electrically connected to the PLC controller in the negative pressure suction cup, when the negative pressure sensor detects that the wind pressure in a certain negative pressure suction cup is lower than a preset threshold, it means that the negative pressure suction cup has not sucked up the woven bag. The PLC controller controls the corresponding solenoid valve to close to avoid the suction of foreign matter, thereby improving the practicality of the present application.

[0046] 5. By setting the first hydraulic cylinder and the second hydraulic cylinder, when the first hydraulic cylinder and the second hydraulic cylinder move at the same time, the negative pressure suction cup can obtain double the moving stroke in the same time, shortening the time required for the negative pressure suction cup to move up and down, and improving the efficiency of the negative pressure suction cup in grabbing the woven bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. The drawings are not intended to be drawn to scale, and for the sake of clarity, not every component will be marked in each figure. The drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0048] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0049] Figure 2 It is a front view of an embodiment of the present application.

[0050] Figure 3 It is a schematic diagram of the structure of the suction cup assembly in an embodiment of the present application.

[0051] Figure 4 It is a top view of the suction cup assembly in the embodiment of the present application.

[0052] Figure 5 It is a schematic diagram of the electric control structure of an embodiment of the present application.

[0053] Description of reference numerals:

[0054] 1-mounting base, 2-negative pressure air pipe, 3-connecting seat, 4-rotating axis, 5-mounting seat, 6-gas distribution device, 7-negative pressure suction cup, 8-ventilation chamber, 9-first air outlet pipe, 10-air inlet, 11-second air outlet pipe, 12-air inlet, 13-first gear, 14-second gear, 15-driving motor, 16-mounting seat body, 17-first mounting axis, 18-second mounting axis, 19-suction cup seat, 20-shock-absorbing spring, 21-mounting groove, 22-PLC controller, 23-solenoid valve, 24-negative pressure sensor, 25-first lifting platform, 26-second lifting platform, 27-first hydraulic cylinder, 28-second hydraulic cylinder, 29-guide column, 30-first limit plate, 31-second limit plate. DETAILED DESCRIPTION

[0055] The embodiment of the present application provides a rotatable negative pressure stacking suction cup for grabbing woven bags, which is used to solve the technical problem that the method of manually taking out the woven bags from the conveying mechanism and then stacking the woven bags in the prior art is not only labor-intensive and increases a lot of labor costs, but also has low stacking efficiency.

[0056] In view of this, the concept of the embodiment of the present application is to set up a mounting base, a lifting part, a negative pressure air pipe and a suction cup assembly, and use the lifting part to drive the mounting base to drive the suction cup assembly to move up and down, and use the driving device to drive the rotating shaft to rotate, thereby driving the mounting base and a plurality of negative pressure suction cups to rotate, so as to more accurately align the woven bags on the conveying mechanism, and use a plurality of negative pressure suction cups to suck multiple woven bags on the conveying mechanism each time, thereby solving the technical problem that the method of manually taking out the woven bags from the conveying mechanism and then stacking the woven bags in the prior art is not only labor-intensive and increases a lot of labor costs, but also has low stacking efficiency.

[0057] The embodiment of the present application provides a rotatable negative pressure stacking suction cup for grabbing woven bags. Figures 1 to 5 As shown, a rotatable negative pressure stacking suction cup for grabbing woven bags is used for grabbing woven bags on a conveying mechanism in batches, and includes a mounting base 1, a lifting part, a negative pressure air pipe 2, a suction cup assembly, and a switch control assembly.

[0058] The lifting part is connected to the top of the mounting base 1 .

[0059] Specifically, the lifting part includes a first lifting platform 25, a second lifting platform 26, a first hydraulic cylinder 27, a second hydraulic cylinder 28, a guide column 29, a first limit plate 30 and a second limit plate 31. The first lifting platform 25 abuts against the top of the mounting base 1, and the second lifting platform 26 abuts against the top of the first lifting platform 25. The cylinder sleeve of the first hydraulic cylinder 27 is fixedly connected to the end of the first lifting platform 25 away from the mounting base 1. The piston rod of the first hydraulic cylinder 27 passes through the first lifting platform 25 and is connected to the mounting base 1. The cylinder sleeve of the second hydraulic cylinder 28 is connected to the end of the second lifting platform 26 away from the first lifting platform 25. One end is fixedly connected, the piston rod of the second hydraulic cylinder 28 passes through the second lifting platform 26 and then is connected to the first lifting platform 25, and a guide column 29 is provided at both ends of the top of the mounting base 1, and the guide column 29 passes through the first lifting platform 25 and the second lifting platform 26 in sequence, the first limit plate 30 is connected to the top of the second lifting platform 26, and is slidably mounted on the two guide columns 29, and the first limit plate 30 is provided with a first through groove for the first hydraulic cylinder 27 and the second hydraulic cylinder 28 to pass through, the second limit plate 31 is connected to the top of the two guide columns 29, and is provided with a second through groove for the second hydraulic cylinder 28 to pass through.

[0060] Among them, when the lifting part is actually used, it can be movably installed on a crane in a factory, and the lifting part is used to drive the mounting base 1 to reciprocate in the vertical direction. Specifically, the second lifting platform 26 can be movably installed on the crane in the factory. By setting the first hydraulic cylinder 27 and the second hydraulic cylinder 28, when the first hydraulic cylinder 27 and the second hydraulic cylinder 28 move at the same time, the mounting base 1 drives the negative pressure suction cup 7 to obtain double the moving stroke in the same time, shortening the time required for the negative pressure suction cup 7 to move up and down, and improving the efficiency of the negative pressure suction cup 7 in grabbing the woven bag. The first through groove is used to limit the cylinder sleeve of the first hydraulic cylinder 27 and the cylinder sleeve of the second hydraulic cylinder 28 to prevent them from swinging, and the second through groove is used to limit the cylinder sleeve of the second hydraulic cylinder 28 to prevent them from swinging.

[0061] The two opposite ends of the bottom of the mounting base 1 are each provided with a suction cup assembly, and the suction cup assembly includes a connecting seat 3, a rotating shaft 4, a driving device, a mounting seat 5, an air distribution device 6 and a plurality of negative pressure suction cups 7. The connecting seat 3 is connected to the mounting base 1, and the rotating shaft 4 passes through the bottom of the connecting seat 3 and is rotatably connected to the connecting seat 3. A ventilation cavity 8 is provided in the rotating shaft 4, and a plurality of first air outlet pipes 9 connected to the ventilation cavity 8 are provided on the outer peripheral side thereof. The driving device is arranged on the connecting seat 3 and is transmission-connected to the rotating shaft 4. The mounting seat 5 is connected to one end of the rotating shaft 4 away from the connecting seat 3, the air distribution device 6 is installed on the top of the mounting seat 5, and is provided with an air inlet 10 and a plurality of second air outlet pipes 11, and a plurality of negative pressure suction cups 7 are installed on the mounting seat 5, and the negative pressure suction cups 7 are provided with air inlet holes 12, and the plurality of air inlet holes 12 are respectively connected to the first air outlet pipe 9 and the second air outlet pipe 11, one end of the negative pressure air pipe 2 is connected to the negative pressure air source, and the other end is connected to the ventilation cavity 8 and the air inlet 10 at the same time.

[0062] Among them, the mounting base 1 is used to provide a mounting foundation for the suction cup assembly. Specifically, the inner side of the bottom of the mounting base 1 is relatively provided with a mounting groove 21, and the two connecting seats 3 are connected to the mounting base 1 by slidingly embedding into the mounting groove 21. When in use, the depth of the connecting seat 3 embedded in the mounting groove 21 can be adjusted according to actual needs to adjust the distance between the two suction cup assemblies. When fixing is required, bolts can be passed through the mounting base 1 and the connecting seat 3 in sequence to play a limiting role. The driving device is used to drive the rotating shaft 4 to rotate. In this embodiment, the number of the negative pressure suction cups 7 in each suction cup assembly is 5, that is, there are 5 air inlet holes 12, each There are three first air outlet pipes 9 on the rotating shaft 4, and there are two second air outlet pipes 11 on each of the air distribution devices 6. In each of the suction cup assemblies, the five air inlet holes 12 on the five negative pressure suction cups 7 are respectively connected to the three first air outlet pipes 9 and the two second air outlet pipes 11 through flexible tubes (not shown in the figure), and the other end of the negative pressure air pipe 2 is connected to the ventilation cavity 8 and the air inlet 9 at the same time through a three-way pipe fitting and two flexible tubes (the three-way pipe fitting and the flexible tube are not shown in the figure). Preferably, in order to prevent the negative pressure air pipe 2 from shaking, the negative pressure air pipe 2 passes through the second lifting platform 26, and the second lifting platform 26 is used to provide the negative pressure air pipe 2 with a limiting function.

[0063] The switch control component includes a PLC controller 22, a plurality of solenoid valves 23 and a plurality of negative pressure sensors 24. The plurality of solenoid valves 23 are respectively arranged on the first air outlet pipe 9 and the second air outlet pipe 11 to control the opening and closing of the first air outlet pipe 9 and the second air outlet pipe 11. Each of the negative pressure sensors 24 is arranged in a negative pressure suction cup 7. The plurality of solenoid valves 23 and the plurality of negative pressure sensors 24 are electrically connected to the PLC controller 22.

[0064] Specifically, in the present embodiment, since each of the suction cup assemblies is provided with 5 of the negative pressure suction cups 7, 3 of the first air outlet pipes 9 and 2 of the second air outlet pipes 11, the number of the solenoid valves 23 is 10, which are respectively arranged on the 6 first air outlet pipes 9 and the 4 second air outlet pipes 11 on the two suction cup assemblies; the number of the negative pressure sensors 24 is 10, which are respectively arranged in the 10 negative pressure suction cups 7 on the two suction cup assemblies.

[0065] Among them, the opening and closing of the 10 air channels corresponding to the 10 negative pressure suction cups 7 are controlled by 10 solenoid valves 23, so that the staff can control the working status of any one or more of the negative pressure suction cups 7 through the PLC controller 22 according to actual needs, thereby improving the flexibility of the present application. The wind pressure values ​​in the 10 negative pressure suction cups 7 can be collected by the 10 negative pressure sensors 24. When the wind pressure in a certain negative pressure suction cup 7 collected by a certain negative pressure sensor 24 is lower than a preset threshold, it means that the negative pressure suction cup 7 has not sucked the woven bag. At this time, the PLC controller 22 can automatically close the solenoid valve 23 on the "air channel" corresponding to the negative pressure suction cup 7. Preferably, in order to improve the degree of automation of the present application, the PLC controller 22 can also be electrically connected to the first hydraulic cylinder 27, the second hydraulic cylinder 28 and the driving device to control the operation of the first hydraulic cylinder 27, the second hydraulic cylinder 28 and the driving device.

[0066] In some preferred embodiments, the driving device includes a first gear 13, a second gear 14 and a driving motor 15, the first gear 13 and the second gear 14 are both arranged inside the connecting seat 3, the first gear 13 is meshed with the second gear 14, the first gear 13 is fixedly connected to the rotating shaft 3, the second gear 14 is fixedly connected to the output end of the driving motor 15, the driving motor 15 is arranged on the upper end surface of the connecting seat 3, and the output end thereof passes through the upper end surface of the connecting seat 3 and is located inside the connecting seat 3, the driving motor 15 is transmission-connected to the rotating shaft 4 through the second gear 14 and the first gear 13, and drives the rotating shaft 4 to rotate. Preferably, in order to improve the degree of automation of the present application, the driving motor 15 is electrically connected to the PLC controller 22 to receive control of the PLC controller 22.

[0067] In some preferred embodiments, the mounting seat 5 includes a mounting seat body 16, a first mounting shaft 17, a second mounting shaft 18 and a plurality of suction cup seats 19, the top of the mounting seat body 16 is connected to the rotating shaft 4, the first mounting shaft 17 and the second mounting shaft 18 are respectively connected to the two opposite sides of the mounting seat body 16, the first mounting shaft 17 and the second mounting shaft 18 are arranged in parallel and are both parallel to the horizontal plane, the first mounting shaft 17 and the second mounting shaft 18 are both slidably connected to a plurality of suction cup seats 19, and the bottom end of the suction cup seat 19 is connected to the negative pressure suction cup 7.

[0068] Among them, by setting a suction cup seat 19 that is slidably connected to the first mounting shaft 17 or the second mounting shaft 18, the suction cup seat 19 can slide in the axial direction of the first mounting shaft 17 or the second mounting shaft 18 with the negative pressure suction cup 7, and adjust the distance between the several negative pressure suction cups 7 located on the same mounting shaft (the first mounting shaft 17 or the second mounting shaft 18). When the distance between the several negative pressure suction cups 7 located on the same mounting shaft is adjusted to the right position, a bolt can be inserted into the side of the suction cup seat 17, and the bolt can be pressed against the first mounting shaft 17 or the second mounting shaft 18 to fix the position of the suction cup seat 19 on the first mounting shaft 17 or the second mounting shaft 18. Specifically, in this embodiment, the number of the suction cup seats 19 on each suction cup assembly is 5, among which 3 suction cup seats 19 are slidably connected to the first mounting shaft 17, and the other 2 suction cup seats 19 are slidably connected to the second mounting shaft 18.

[0069] In some preferred embodiments, the number of the first mounting axes 17 and the number of the second mounting axes 18 are both two, the two first mounting axes 17 are arranged in parallel at one end of the mounting seat body 16, the plane where the two first mounting axes 17 are located is perpendicular to the horizontal plane, the two second mounting axes 18 are arranged in parallel at the other end of the mounting seat body 16 opposite to the two first mounting axes 17, the plane where the two second mounting axes 18 are located is perpendicular to the horizontal plane, and the suction cup seat 19 is slidably connected to the two first mounting axes 17 or the two second mounting axes 18.

[0070] Among them, each of the suction cup seats 19 is slidably connected to the two first mounting shafts 17 at the same time, or each of the suction cup seats 19 is slidably connected to the two second mounting shafts 18 at the same time. By setting the number of the first mounting shafts 17 and the second mounting shafts 18 to be two, the suction cup seat 19 can be prevented from rotating on the first mounting shaft 17 or the second mounting shaft 18, thereby preventing the suction cup surface of the negative pressure suction cup 7 from being not parallel to the horizontal plane. Specifically, in this embodiment, the number of the suction cup seats 19 on each of the suction cup assemblies is 5, among which 3 of the suction cup seats 19 are slidably connected to the two first mounting shafts 17 at the same time, and the other 2 of the suction cup seats 19 are slidably connected to the two second mounting shafts 18 at the same time.

[0071] In some preferred embodiments, the mounting seat 5 also includes a plurality of shock-absorbing springs 21, and the two ends of the shock-absorbing springs 21 are respectively connected to the suction cup seat 19 and the negative pressure suction cup 7. By providing the shock-absorbing springs 21, the negative pressure suction cup 7 is prevented from making hard contact with the conveying mechanism when pressing down to grab the woven bag.

[0072] In summary, the embodiment of the present application provides a rotatable negative pressure stacking suction cup for grabbing woven bags. A lifting part is provided to drive the mounting base to drive the suction cup assembly to move up and down, and a driving device is used to drive the rotating shaft to rotate, thereby driving the mounting seat and a plurality of negative pressure suction cups to rotate, so as to more accurately align the woven bags on the conveying mechanism. A plurality of woven bags on the conveying mechanism are sucked up by a plurality of negative pressure suction cups each time, thereby solving the technical problem that the method of manually taking out the woven bags from the conveying mechanism and then stacking the woven bags in the prior art is not only labor-intensive, increases a large amount of labor costs, but also has low stacking efficiency. At the same time, by arranging a suction cup seat to be slidably connected with the first mounting shaft or the second mounting shaft, the suction cup seat can slide with the negative pressure suction cup in the axial direction of the first mounting shaft or the second mounting shaft, thereby adjusting the distance between a plurality of negative pressure suction cups, and improving The practicality of the present application is improved; by arranging solenoid valves on the first air outlet pipe and the second air outlet pipe, the solenoid valves are electrically connected to the PLC controller, so that the staff can control the working state of any negative pressure suction cup as needed, thereby improving the flexibility of the present application; by arranging a negative pressure sensor electrically connected to the PLC controller in the negative pressure suction cup, when the negative pressure sensor detects that the wind pressure in a certain negative pressure suction cup is lower than a preset threshold value, it means that the negative pressure suction cup has not sucked up the woven bag, and the PLC controller controls the corresponding solenoid valve to close to avoid sucking in foreign matter, thereby improving the practicality of the present application; by arranging the first hydraulic cylinder and the second hydraulic cylinder, when the first hydraulic cylinder and the second hydraulic cylinder move at the same time, the negative pressure suction cup can obtain double the moving stroke in the same time, shortening the time required for the negative pressure suction cup to move up and down, and improving the efficiency of the negative pressure suction cup in grabbing the woven bag.

[0073] The above is a detailed introduction to a rotatable negative pressure stacking suction cup for grabbing woven bags provided in an embodiment of the present application. This article uses specific examples to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A rotatable negative pressure palletizing suction cup for grabbing woven bags, used for grabbing woven bags on a conveying mechanism in batches, characterized in that: It includes a mounting base, a lifting part, a negative pressure air pipe and a suction cup assembly; The lifting part is connected to the top of the mounting base; The two opposite ends of the bottom of the mounting base are each provided with a suction cup assembly, and the suction cup assembly includes a connecting seat, a rotating shaft, a driving device, a mounting seat, an air distribution device and a plurality of negative pressure suction cups; The connecting seat is connected to the mounting base, the rotating shaft passes through the bottom of the connecting seat and is rotatably connected to the connecting seat, a ventilation cavity is provided in the rotating shaft, and a plurality of first air outlet pipes connected to the ventilation cavity are provided on the outer peripheral side of the rotating shaft, the driving device is provided on the connecting seat and is transmission-connected to the rotating shaft, the mounting seat is connected to an end of the rotating shaft away from the connecting seat, the air distribution device is installed on the top of the mounting seat, an air inlet and a plurality of second air outlet pipes are provided on the mounting seat, and a plurality of negative pressure suction cups are all installed on the mounting seat, and an air inlet hole is provided on the negative pressure suction cup, and the plurality of air inlet holes are respectively connected to the first air outlet pipe and the second air outlet pipe one by one; One end of the negative pressure air tube is connected to the negative pressure air source, and the other end is connected to the ventilation cavity and the air inlet at the same time.

2. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 1, characterized in that: The driving device comprises a first gear, a second gear and a driving motor; The first gear and the second gear are both disposed inside the connecting seat, and the first gear is meshed with the second gear; The first gear is connected to the rotating shaft; The second gear is connected to the output end of the driving motor, and the driving motor is arranged on the upper end surface of the connecting seat.

3. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 1, characterized in that: The mounting seat comprises a mounting seat body, a first mounting shaft, a second mounting shaft and a plurality of suction cup seats; The top end of the mounting seat body is connected to the rotating shaft; The first installation axis and the second installation axis are respectively connected to opposite ends of the installation seat body, and the first installation axis and the second installation axis are parallel and parallel to the horizontal plane; A plurality of suction cup seats are slidably connected to the first installation shaft and the second installation shaft, and the bottom ends of the suction cup seats are connected to the negative pressure suction cup.

4. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 3, characterized in that: The number of the first installation shaft and the number of the second installation shaft are both two; The two first mounting axes are arranged in parallel at one end of the mounting seat body, the plane where the two first mounting axes are located is perpendicular to the horizontal plane, and the two second mounting axes are arranged in parallel at the other end of the mounting seat body opposite to the two first mounting axes, and the plane where the two second mounting axes are located is perpendicular to the horizontal plane; The suction cup seat is slidably connected to the two first mounting shafts or the two second mounting shafts.

5. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 3, characterized in that: The mounting seat also includes a plurality of shock-absorbing springs, and two ends of the shock-absorbing springs are respectively connected to the suction cup seat and the negative pressure suction cup.

6. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 1, characterized in that: A mounting groove is provided at the bottom of the mounting base; The connecting seat is connected to the mounting base through the mounting groove.

7. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 1, characterized in that: It also includes a switch control component, which includes a PLC controller and a plurality of solenoid valves; The plurality of solenoid valves are respectively arranged on the first air outlet pipe and the second air outlet pipe to control the opening and closing of the first air outlet pipe and the second air outlet pipe; The plurality of solenoid valves are all electrically connected to the PLC controller.

8. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 7, characterized in that: The switch control assembly also includes a number of negative pressure sensors; Each of the negative pressure sensors is disposed in a negative pressure suction cup; The plurality of negative pressure sensors are all electrically connected to the PLC controller.

9. The rotatable negative pressure palletizing suction cup for grabbing woven bags according to claim 1, characterized in that: The lifting unit includes a first lifting platform, a second lifting platform, a first hydraulic cylinder, a second hydraulic cylinder and a guide column; The first lifting platform abuts against the top of the mounting base; The second lifting platform abuts against the top of the first lifting platform; The cylinder sleeve of the first hydraulic cylinder is fixedly connected to an end of the first lifting platform away from the mounting base, and the piston rod of the first hydraulic cylinder passes through the first lifting platform and is connected to the mounting base; The cylinder sleeve of the second hydraulic cylinder is fixedly connected to an end of the second lifting platform away from the first lifting platform, and the piston rod of the second hydraulic cylinder passes through the second lifting platform and is connected to the first lifting platform; A guide column is disposed at both ends of the top of the mounting base, and the guide column passes through the first lifting platform and the second lifting platform in sequence.

10. A rotatable negative pressure palletizing suction cup for grabbing woven bags as claimed in claim 9, characterized in that: The lifting part also includes a first limit plate and a second limit plate; The first limit plate is connected to the top of the second lifting platform and is slidably sleeved on the two guide columns. The first limit plate is provided with a first through slot for the first hydraulic cylinder and the second hydraulic cylinder to pass through. The second limiting plate is connected to the top ends of the two guide columns, and is provided with a second through slot for the second hydraulic cylinder to pass through.

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