CN115303591A - Automatic unpacking device and automatic unpacking method - Google Patents
Automatic unpacking device and automatic unpacking method Download PDFInfo
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- CN115303591A CN115303591A CN202211120400.7A CN202211120400A CN115303591A CN 115303591 A CN115303591 A CN 115303591A CN 202211120400 A CN202211120400 A CN 202211120400A CN 115303591 A CN115303591 A CN 115303591A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0008—Opening and emptying bags
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B69/00—Unpacking of articles or materials, not otherwise provided for
- B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting
Abstract
The invention discloses an automatic unpacking device which comprises a unpacking mechanism, a shifting mechanism and a dust-proof chamber, wherein the bottom of the dust-proof chamber is provided with an adjacent blanking port and a throwing bag port, the other side surfaces of the dust-proof chamber except the rear side surface are sealed, the upper bottom surface is provided with an air outlet, and the air outlet is connected to an exhaust fan through an exhaust hood; the bale breaking mechanism comprises a first motor and a plurality of cutting devices which are fixed on a rotating shaft of the first motor and rotate along with the rotating shaft, and the cutting devices are positioned at the discharge port; the bag moving mechanism comprises a first bag moving mechanism for conveying the material bag into the dustproof chamber and a second bag moving mechanism for conveying the material bag to the bag throwing opening; the first bag moving mechanism, the second bag moving mechanism and the bag removing mechanism are respectively connected with a programmable controller. The invention can realize automatic unpacking and discharging of powdery material bags, greatly reduce the occurrence of powder flying in a workshop, has high speed of dropping the materials from the bags and greatly improves the unpacking efficiency.
Description
Technical Field
The invention belongs to the technical field of automatic unpacking equipment, and particularly relates to an automatic unpacking device and an automatic unpacking method.
Background
Cubic boron nitride (cBN), an artificially synthesized superhard material with hardness second to that of diamond, has unique characteristics obviously superior to those of diamond tools, and is the most suitable processing material in the fields of machinery, automobiles and related industries. At present, the main raw material for synthesizing the cBN single crystal is hexagonal boron nitride, the crystal structure of the hexagonal boron nitride is similar to a graphite laminated structure, and the hexagonal boron nitride is light white loose powder, easily generates dust, pollutes the air environment of a production workshop, and harms the body health of operators and the clean operation of equipment. In addition, in air, hexagonal boron nitride easily adsorbs water molecules, and the synthetic color and quality of the cBN crystal are influenced. In the existing technological process, an operator needs to unpack the hexagonal boron nitride packaging bags one by one, weigh and pack the hexagonal boron nitride packaging bags into a plurality of trays, transport the trays to a drying chamber through a transport trolley, respectively place the trays on supports in an oven, and after a certain time of drying technological process, take out the trays one by one, and respectively pour the trays into the cloth bags, so that the trays can be used in subsequent processes. The dust is easily produced in the operation process links such as weighing, subpackaging and conveying, the air environment of a workshop is polluted, the health of operators is harmed, the hidden danger of production safety is realized, manual operation is mostly adopted in production, the automation degree is low, and the production efficiency and the production quality are influenced. The same problem exists with the production of other powdered materials like hexagonal boron nitride. Therefore, the development of the automatic unpacking system for preventing dust from being generated in the workshop has important significance in the aspects of improving the production efficiency and the product quality, reducing the labor intensity of workers, optimizing the production environment, saving energy, reducing consumption and the like.
The Chinese patent specification with the publication number of CN108773545A discloses an automatic unpacking device, which can realize the automatic unpacking of a powder charging bag and greatly reduce the occurrence of powder flying phenomenon, but the device has low unpacking efficiency because only one opening is formed at the bottom of the charging bag, and the discharging speed is low; and when the device is used for unpacking, workers are required to pick up the material bag at the tail end of the bag falling slideway.
Disclosure of Invention
The invention aims to provide an automatic unpacking device and an automatic unpacking method, so as to solve the problem of low efficiency when a powdery material bag is automatically unpacked.
The invention further solves the technical problem of collecting the material bag and the residual powdery material in the material bag, thereby avoiding the waste of the material, avoiding the need of manually picking up the detached material bag and reducing the labor intensity of workers.
The technical scheme of the invention is as follows:
the invention discloses an automatic unpacking device, which comprises a unpacking mechanism and a unpacking mechanism, and is characterized by also comprising a dustproof chamber for preventing powder from diffusing in the air, wherein the bottom of the dustproof chamber is provided with a blanking port and a bag feeding port which are adjacent, a bag inlet of the dustproof chamber is arranged on the rear side surface of the dustproof chamber, the bag inlet is provided with a dust sealing device for preventing dust from flying out of the dustproof chamber from the bag inlet, the blanking port is provided with a bag rack for preventing a bag from falling, the blanking port is connected with a material storage device in a sealing way, and other side surfaces of the dustproof chamber except the rear side surface are sealed; the bale breaking mechanism comprises a first motor and a plurality of cutting devices which are fixed on a rotating shaft of the first motor and rotate along with the rotating shaft, a certain distance is reserved between every two adjacent cutting devices, the rotating shaft of the first motor is horizontally arranged, and the cutting devices are positioned at the position of the blanking port; the bag moving mechanism comprises a first bag moving mechanism for conveying the material bag into the dustproof chamber and a second bag moving mechanism for conveying the material bag to the bag throwing opening; the first bag moving mechanism, the second bag moving mechanism and the bag removing mechanism are respectively connected with a programmable controller.
Furthermore, an air outlet is formed in the top surface of the dust-proof chamber and is connected to an exhaust fan through an exhaust hood; the first bag moving mechanism is a conveyor belt conveyor, the tail end of the conveyor belt is arranged at a bag inlet of the dust-proof room, and a first sensing device used for sensing whether a bag passes through is arranged at the tail end of the conveyor belt; the second package moving mechanism comprises a ball screw linear module, a roller arranged on the material bag frame and a package grabbing device fixedly connected with a sliding block of the ball screw linear module and used for grabbing the material bag.
Furthermore, the bale grabbing device comprises a second motor, a bale grabbing bracket, a first rotating shaft, a second rotating shaft and a third rotating shaft which are fixedly connected with the sliding block, an output shaft of the second motor, the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other, a fourth gear, a first gear, a second gear and a third gear are fixedly arranged on the output shaft of the second motor, the first rotating shaft, the second rotating shaft and the third rotating shaft respectively, the fourth gear is meshed with the second gear and the third gear respectively, and the first gear is meshed with the third gear; bearing seats respectively matched with the first rotating shaft, the second rotating shaft and the third rotating shaft are fixedly arranged on the bale grabbing bracket, the first rotating shaft, the second rotating shaft and the third rotating shaft are respectively arranged on the bearing seats, a part of the first rotating shaft and a part of the second rotating shaft extend into the dust-proof chamber, hook devices are respectively arranged at the end parts of the first rotating shaft and the second rotating shaft extending into the dust-proof chamber, and a second sensing device used for sensing whether a material bag enters the dust-proof chamber is arranged in the dust-proof chamber; and the left side surface of the dust-proof room is provided with an inlet through which the first rotating shaft and the second rotating shaft can enter the dust-proof room.
The material bag collecting mechanism comprises a throwing device, a material bag bin and a bag pressing mechanism, wherein the throwing device is used for allowing a material bag to pass through and throwing out materials remained in the material bag; the bag pressing mechanism comprises an air cylinder, an air inlet and an air outlet of the air cylinder are respectively connected to a reversing air valve, an electromagnet for driving a valve core of the reversing air valve to reverse is arranged on the reversing air valve, a controlled end of the electromagnet is connected to the programmable controller, a piston rod of the air cylinder extends into the material bag bin, a pressing plate is fixedly arranged on the piston rod, and when the piston rod is in a contraction state, the pressing plate is positioned at the top of the material bag bin; the material throwing device is characterized in that a through hole is formed in a partial area of the side wall of the throwing device so as to throw materials out of the throwing device, and a feeding port of the excess material collecting bin is connected with the side wall, provided with the through hole, of the throwing device in a sealing mode.
Further, still include the storage silo, the dust-proof room passes through blanking mouth blanking fill and storage silo sealing connection, the top of storage silo still is provided with the vacuum and takes out the material mouth, and the storage silo takes out material mouthful sealing connection to the pan feeding mouth of vacuum material taking machine through the vacuum, and the discharge gate sealing connection of vacuum material taking machine to automatic drying system.
Furthermore, a third sensing device and a fourth sensing device which are used for sensing whether the sliding block reaches the front end and the rear end of the guide rail or not are arranged on the ball screw linear module respectively, and when the sliding block reaches the front end of the guide rail, the material bag grabbed by the bag grabbing device just reaches the position right above the bag throwing opening; a material bag bin door is also arranged on the side surface of the material bag bin; the clout is collected the storehouse and is included the clout storehouse and connect the workbin, connects the workbin to be located the below of clout storehouse and connect the opening of workbin and the discharge gate sealing connection in clout storehouse, the pan feeding mouth sealing connection of clout storehouse is in the lateral wall that the through-hole was seted up to the whipping device.
Furthermore, the first sensing device, the second sensing device, the third sensing device, the fourth sensing device, the controlled end of the driving motor of the conveyor belt conveyor, the controlled end of the second motor, the controlled end of the driving motor of the ball screw linear module, the controlled end of the first motor and the controlled end of the electromagnetic valve are all electrically connected with a programmable controller, and the programmable controller is further connected to an upper computer.
Further, the dust sealing device is a dust sealing curtain; the hooking device is a hook; the first sensing device, the second sensing device and the third sensing device are all photoelectric switches, the throwing device is an electric roller, and the cutting device is a stainless steel cutting blade; the conveying belt of the conveying belt conveyor is an anti-skid conveying belt.
The invention also discloses an automatic unpacking method, which comprises the following steps:
(1) Placing the material bag to be disassembled on a workbench of a conveyor belt conveyor, and conveying the material bag into a dust-proof room under the driving of the conveyor belt;
(2) The bag grabbing device grabs the material bag, the second bag moving mechanism drives the bag grabbing device to move forwards to a position where the material bag is in contact with the cutting device, the first motor drives the plurality of cutting devices arranged on the first motor to rotate, the bottom of the material bag is cut into a plurality of openings, the material in the bag falls from the material dropping opening, and the second bag moving mechanism drives the bag grabbing device to move forwards all the time;
(3) When the material bag moves to the bag throwing opening, the bag grabbing device stops moving forwards, the bag grabbing device acts, the material bag falls off from the bag grabbing device and falls into the throwing device from the bag throwing opening, and the bag grabbing mechanism and the second bag moving mechanism reset;
(4) Repeating the steps (1) to (3), and controlling the cylinder to act to compact the material bag once by the programmable controller at regular intervals; when the number of the unpacked material bags meets the condition, the programmable controller controls the driving motor of the conveyor belt conveyor to stop rotating.
Further, the method for judging whether the number of the unpacked material bags meets the condition comprises the steps of presetting a numerical value in a programmable controller, sending a pulse signal to the programmable controller when a first sensing device is triggered, adding one to the counting value of the programmable controller, and indicating that the number of the unpacked material bags meets the condition when the counting value is equal to the preset value; and when the first sensing device and the second sensing device are triggered simultaneously, controlling the motor of the conveyor belt conveyor to stop rotating.
The beneficial effects of the invention are as follows:
according to the invention, the first bag moving mechanism conveys the bags to be disassembled into the dustproof chamber, the second bag moving mechanism grabs the bags and moves the bags forwards to pass through the grinding wheel, a plurality of discharge ports are cut below the bags, the bags rapidly drop out, when the bags reach the bag throwing opening, the second bag moving mechanism loosens the bags, and the bags drop to the bag recovery area from the bag throwing opening. The invention can realize automatic unpacking and discharging of powdery material bags, greatly reduce the occurrence of powder flying in a workshop, realize high speed of falling out of the materials from the bags and greatly improve the discharging efficiency.
An air suction opening is formed in the top of the dustproof chamber, and the dustproof chamber is connected to the exhaust fan through the air suction cover, so that dust in the dustproof chamber is pumped out to a specified area, and the powder flying phenomenon is further prevented.
Through setting up the second motor, grabbing a packet support and first pivot, second pivot and the third pivot that is parallel to each other, first gear, second gear, third gear, fourth gear set up respectively in first pivot and second pivot and collude and get the device, the direction of rotation and the angle of control second motor can realize effectively snatching and unclamping the pocket.
By arranging the throwing device, the residual materials in the material bag can be thrown out and fall to the residual material collecting bin, so that the material waste is avoided; through setting up the pocket storehouse and pressing the bag mechanism, avoided the manual work to pick up the pocket, alleviateed workman's intensity of labour.
Drawings
FIG. 1 is a schematic view of an automatic unpacking device;
FIG. 2 is a left side view of the automatic unpacking device;
FIG. 3 is a schematic view of a bale plucking device;
FIG. 4 is a schematic structural view of the hooking device;
fig. 5 is a schematic view of the bag removing mechanism and the roller.
Detailed Description
As shown in fig. 1 to 4, an automatic unpacking device comprises a unpacking mechanism, a first bag moving mechanism, a second bag moving mechanism, a dust-proof chamber 6 and a bag pressing mechanism. The first bag moving mechanism adopts a conveyor belt conveyor, the conveyor belt 3 is an anti-skid conveyor belt, the tail end of the conveyor belt is positioned at the inlet of the material bag of the dust-proof chamber 6, a first support 36 is arranged at the tail end of the conveyor belt, and the first sensing device 4 is arranged on the first support 36. The bottom of the dust-proof chamber 6 is provided with an adjacent blanking port and a feeding bag opening 21; the material bag inlet of the dust-proof chamber is arranged on the rear side surface of the dust-proof chamber, and the material bag inlet is provided with a dust sealing device (not shown in the figure) for preventing dust from flying out of the dust-proof chamber from the material bag inlet, and the dust sealing device can adopt a dust sealing curtain; a material bag frame is arranged at a blanking port on the bottom surface of the dust-proof chamber 6, the blanking port is hermetically connected with a storage bin 32 through a blanking hopper 31, and the other side surfaces of the dust-proof chamber except the rear side surface are sealed; in order to extract the dust in the dust-proof chamber, an air outlet is formed in the top of the dust-proof chamber and is connected to an exhaust fan through an exhaust hood. The top of the storage bin 32 is provided with a vacuum material pumping port 35, the storage bin is hermetically connected to a feeding port of the vacuum material pumping machine 34 through the vacuum material pumping port 35, and a discharging port of the vacuum material pumping machine 34 is hermetically connected to the automatic drying system 43 through the buffer bin 41. The materials in the storage bin 32 can be directly pumped into the automatic drying system for drying, and the materials are not required to be manually loaded into a tray and then put into a drying device for drying. A waste material bin 23 and a material bag bin 25 are arranged below the throwing bag opening 21, an inlet of the material bag bin 25 is connected with an outlet of the whipping device 22 in a sealing mode, an inlet of the whipping device 22 is connected with the throwing bag opening 21 at the bottom of the dust-proof chamber 6 in a sealing mode, the whipping device 22 is obliquely arranged, a waste material blanking hole is formed in the lower area of the side wall of the whipping device, so that materials can be thrown out of the whipping device 22, a feeding opening of the waste material bin 23 is connected with the side wall, provided with the waste material blanking hole, of the whipping device 22 in a sealing mode, and the whipping device 22 can adopt an electric roller; a material receiving box 24 is arranged below the residue bin 23, and the opening of the material receiving box 24 is hermetically connected with the discharge hole below the residue bin 23. An air cylinder 28 is arranged above the material bag bin 25, a piston rod 33 of the air cylinder 28 extends into the material bag bin 25, a pressing plate 29 is fixedly arranged at the end part of the piston rod 33, when the piston rod 33 is reset, the pressing plate is positioned at the top of the material bag bin 25, and a material bag bin door 30 is arranged on the side surface of the material bag bin 25; an air inlet and an air outlet of the air cylinder 28 are respectively connected to a reversing air valve 27 through air pipes, an electromagnet 26 for controlling the reversing of a valve core of the reversing air valve is arranged on the reversing air valve 27, and a controlled end of the electromagnet 26 is connected to a programmable controller. The second sensing device 7 is arranged in the dust-proof chamber 6, the position of the second sensing device 7 needs to ensure that the second sensing device 7 can be triggered after the material bag falls from the anti-skid conveying belt 3 to the dust-proof chamber, and the second sensing device 7 is fixedly arranged on the second support 8.
The second packet moving mechanism comprises a ball screw linear module, a roller 18 arranged on the material bag rack and a packet grabbing device; the bale grabbing device comprises a second motor 10, a bale grabbing bracket 45, a first rotating shaft 46, a second rotating shaft 47 and a third rotating shaft, and the second motor 10 and the bale grabbing bracket 45 are fixedly connected with a sliding block 16 of the ball screw linear module; an output shaft of the second motor 10, the first rotating shaft 46, the second rotating shaft 47 and the third rotating shaft are parallel to each other, and a fourth gear 38, a first gear 44, a second gear 48 and a third gear 39 are fixedly arranged on the output shaft, the fourth gear 38 is meshed with the second gear 48 and the third gear 39 respectively, and the first gear 44 is meshed with the third gear 39; the bag grabbing bracket 45 is fixedly provided with bearing seats respectively matched with the first rotating shaft 46, the second rotating shaft 47 and the third rotating shaft, the first rotating shaft 46, the second rotating shaft 47 and the third rotating shaft are all arranged on the bearing seats, one ends of the first rotating shaft 46 and the second rotating shaft 47 extend into the dust-proof chamber 6, and the parts of the first rotating shaft 46 and the second rotating shaft 47 extending into the dust-proof chamber 6 are respectively provided with the hooking device 13. The hook device 13 may be an approximately L-shaped hook, and the hook fixed on the first rotating shaft 46 and the second rotating shaft 47 may hook or release the pocket under the rotation of the first rotating shaft 46 and the second rotating shaft 47. And a third sensing device 17 and a fourth sensing device 18 which are respectively used for sensing whether the sliding block reaches the front end and the rear end of the guide rail are arranged on the ball screw linear module, and when the sliding block reaches the front end of the guide rail, the material bag grabbed by the bag grabbing device just reaches the position right above the bag throwing opening 21. An inlet through which the first rotating shaft and the second rotating shaft pass is formed in the left side surface of the dust-proof chamber 6.
The controlled ends of the second motor 10, the driving motor of the conveyor belt and the driving motor 14 of the ball screw linear module are respectively connected to a programmable controller. The first sensing device, the second sensing device, the third sensing device and the fourth sensing device can adopt photoelectric switches or other suitable sensing devices and are in communication connection with the programmable controller, and the communication connection mode can adopt wire electric connection or wireless communication connection
As shown in fig. 5, the unpacking mechanism includes a first motor 40, a plurality of cutting devices 20 capable of rotating along with the rotating shaft are uniformly and fixedly arranged on the rotating shaft of the first motor 40, the rotating shaft of the first motor 40 is horizontally arranged, and the cutting devices 20 are located at the position of the discharge port and the top of the cutting devices 20 is higher than the roller 19 so that the material bags on the roller 19 can be cut by the cutting devices 20. The cutting device 20 can be a stainless steel cutter, a grinding wheel, a wafer saw, etc
The working principle of the automatic unpacking device is as follows:
firstly, inputting relevant parameters such as feeding times, discharging time and the like of a material bag through an upper computer, sending a starting command to a programmable controller by the upper computer, controlling a driving motor and a first motor of a conveyor belt conveyor to start by the programmable controller, wherein the initial counting value of the programmable controller is 0; the drive motor of the conveyor belt drives the antiskid conveyor belt 3 to rotate at a specific speed, and the first motor 40 drives the cutting device 20 to rotate. Then, placing the material bag 1 to be dismantled on a workbench 2 of a conveyor belt conveyor, and moving the material bag to a dust-proof room 6 through the conveyor belt; triggering a first sensing device 4 after the material bag 1 reaches the end of the conveyor belt, wherein the first sensing device 4 sends a pulse signal to a programmable controller, and the counting value of the programmable controller is increased by one; then the material slides on a material rack in the dust-proof room 6, at the moment, a second sensing device 7 in the dust-proof room 6 is triggered to output a signal to a signal input end of a programmable controller, then the programmable controller sends a signal to control a second motor 10 to rotate in the forward direction, so that a first rotating shaft 46 is driven to rotate in the forward direction by 90 degrees, a second rotating shaft 47 rotates in the reverse direction by 90 degrees, and the hooking devices 13 arranged on the first rotating shaft 46 and the second rotating shaft 47 can penetrate through the two sides of the upper end of the material bag to hook the material bag 1; then the programmable controller controls the driving motor 14 of the ball screw linear module to rotate to drive the sliding block 16 on the sliding table 15 to move linearly forward, so as to drag the material bag 1 to move forward along the roller 19 on the material bag holder. When the material bag 1 passes through the cutting device 20, the bottom of the material bag is cut into a plurality of openings from front to back, the material in the bag rapidly falls into the feed hopper 31 from the bag, when the material bag moves to the bag feeding opening 21, the sliding block 16 just moves to the front end of the ball screw linear module, at the moment, the fourth sensing device 17 is triggered and sends a pulse signal to the programmable controller, the programmable controller controls the second motor 10 to rotate in the reverse direction for 180 degrees, so as to drive the first rotating shaft 46 to rotate in the reverse direction for 180 degrees, the second rotating shaft 47 rotates in the forward direction for 180 degrees, so that the material bag 1 falls off from the hooking device 13, the material bag falls off from the bag feeding opening 21, the programmable controller controls the driving motor of the ball screw, the sliding block 16 returns to the rear end of the sliding table 15 and then stops, and the second sensing device is waited to be triggered again. When the material bag falls down and passes through the throwing device 22, the material bag is driven by the throwing device to be quickly thrown to throw the residual materials in the material bag out of the residual material blanking holes formed in the side wall of the throwing device and enter the residual material bin 23, and the material receiving box 24 is arranged at the lower end of the residual material bin 23, so that the residual materials are conveniently treated. The material bag comes out of the throwing device under the action of the spiral force in the throwing device and falls into the material bag bin 25, the programmable controller sends a charged signal to the electromagnet 26 at regular time to drive the valve core of the pneumatic reversing valve 27 to reverse, so that the pressing plate 29 fixedly arranged at the end part of the piston rod 33 in the cylinder 28 moves downwards, after the loose material bag is compacted, the system controls the electromagnet to reverse the valve core to return the pressing plate, the effective space in the material bag bin is vacated, and the material bag bin 25 is provided with a bin gate 30 which can take out the material bag for processing. When the pulse signal count sent to the programmable controller by the first sensing device 4 reaches a set value, the upper computer display screen prompts that the material loading number is reached, the driving motor of the conveyor belt conveyor is automatically controlled to stop rotating, and the anti-skid conveyor belt 3 stops conveying materials. The upper end of the storage box is provided with a vacuum pumping hole, and the hexagonal boron nitride material is conveyed to an automatic drying system through a vacuum pumping machine to be automatically connected with a subsequent drying process.
The automatic unpacking method disclosed by the invention is embodied in the working principle part of the automatic unpacking device, and is not described herein again.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications and substitutions can be made therein without departing from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. An automatic unpacking device comprises a unpacking mechanism and a moving mechanism, and is characterized by also comprising a dustproof chamber for preventing powder from diffusing in the air, wherein the bottom of the dustproof chamber is provided with a blanking port and a bag feeding port which are adjacent, a bag inlet of the dustproof chamber is arranged on the rear side surface of the dustproof chamber, the bag inlet is provided with a dust sealing device for preventing dust from flying out of the dustproof chamber from the bag inlet, the blanking port is provided with a bag frame for preventing a bag from falling, the blanking port is connected with a material storage device in a sealing manner, and other side surfaces of the dustproof chamber except the rear side surface are sealed; the bale breaking mechanism comprises a first motor and a plurality of cutting devices which are fixed on a rotating shaft of the first motor and rotate along with the rotating shaft, a certain distance is reserved between every two adjacent cutting devices, the rotating shaft of the first motor is horizontally arranged, and the cutting devices are positioned at a discharge port; the bag moving mechanism comprises a first bag moving mechanism for conveying the material bag into the dustproof chamber and a second bag moving mechanism for conveying the material bag to the bag throwing opening; the first bag moving mechanism, the second bag moving mechanism and the bag removing mechanism are respectively connected with a programmable controller.
2. The automatic unpacking device according to claim 1, wherein the top of the dust-proof chamber is provided with an air outlet which is connected to an exhaust fan through an exhaust hood; the first bag moving mechanism is a conveyor belt conveyor, the tail end of the conveyor belt is arranged at a bag inlet of the dust-proof room, and a first sensing device used for sensing whether a bag passes through is arranged at the tail end of the conveyor belt; the second bag moving mechanism comprises a ball screw linear module, a roller arranged on the material bag rack and a bag grabbing device which is fixedly connected with a sliding block of the ball screw linear module and used for grabbing the material bag.
3. The automatic unpacking device according to claim 2, wherein the bale catching device comprises a second motor fixedly connected with the slide block, a bale catching bracket, a first rotating shaft, a second rotating shaft and a third rotating shaft, an output shaft of the second motor, the first rotating shaft, the second rotating shaft and the third rotating shaft are parallel to each other, and a fourth gear, a first gear, a second gear and a third gear are respectively and fixedly arranged on the output shaft of the second motor, the first rotating shaft, the second rotating shaft and the third rotating shaft, the fourth gear is respectively meshed with the second gear and the third gear, and the first gear is meshed with the third gear; the bag grabbing bracket is fixedly provided with bearing seats which are respectively matched with the first rotating shaft, the second rotating shaft and the third rotating shaft, the first rotating shaft, the second rotating shaft and the third rotating shaft are respectively arranged on the bearing seats, one part of the first rotating shaft and one part of the second rotating shaft extend into the dust-proof chamber, the end parts of the first rotating shaft and the second rotating shaft which extend into the dust-proof chamber are respectively provided with a hooking device, and a second sensing device used for sensing whether a material bag enters the dust-proof chamber is arranged in the dust-proof chamber; and the left side surface of the dust-proof chamber is provided with an inlet through which the first rotating shaft and the second rotating shaft can enter the dust-proof chamber.
4. The automatic unpacking device as recited in claim 3, further comprising a surplus material collecting bin and a material bag collecting mechanism which are arranged below the bag throwing opening, wherein the material bag collecting mechanism comprises a throwing device for allowing the material bag to pass through and throwing out the material remained in the material bag, a material bag bin and a bag pressing mechanism for compacting the material bag in the material bag bin; the bag pressing mechanism comprises an air cylinder, an air inlet and an air outlet of the air cylinder are respectively connected to a reversing air valve, an electromagnet for driving a valve core of the reversing air valve to reverse is arranged on the reversing air valve, a controlled end of the electromagnet is connected to the programmable controller, a piston rod of the air cylinder extends into the material bag bin, a pressing plate is fixedly arranged on the piston rod, and when the piston rod is in a contraction state, the pressing plate is positioned at the top of the material bag bin; the material collecting device comprises a throwing device, a residual material collecting bin and a material collecting bin, wherein the throwing device is arranged on the side wall of the residual material collecting bin, the material collecting bin is arranged on the side wall of the throwing device, and the material collecting bin is arranged on the side wall of the throwing device.
5. The automatic unpacking device of claim 4, further comprising a storage bin, wherein the dust-proof chamber is connected with the storage bin in a sealing manner through the blanking port, a vacuum material-pumping port is further arranged at the top of the storage bin, the storage bin is connected with a material-feeding port of the vacuum material-pumping machine in a sealing manner through the vacuum material-pumping port, and a material-discharging port of the vacuum material-pumping machine is connected with the automatic drying system in a sealing manner.
6. The automatic unpacking device according to claim 5, wherein a third sensing device and a fourth sensing device for sensing whether the slide block reaches the front end and the rear end of the guide rail respectively are arranged on the ball screw linear module, and when the slide block reaches the front end of the guide rail, the material bag grabbed by the unpacking device just reaches the opening of the bag throwing port; a material bag bin door is also arranged on the side surface of the material bag bin; the clout is collected the storehouse and is included the clout storehouse and connect the workbin, connects the workbin to be located the below of clout storehouse and connect the opening of workbin and the discharge gate sealing connection in clout storehouse, the pan feeding mouth sealing connection of clout storehouse is in the lateral wall that the through-hole was seted up to the whipping device.
7. The automatic unpacking device according to claim 6, wherein the first sensing device, the second sensing device, the third sensing device, the fourth sensing device, the controlled end of the drive motor of the conveyor belt conveyor, the controlled end of the second motor, the controlled end of the drive motor of the ball screw linear module, the controlled end of the first motor and the controlled end of the solenoid valve are all electrically connected with a programmable controller, and the programmable controller is further connected to an upper computer.
8. The automatic unpacking device of claim 7, wherein the dust seal device is a dust seal curtain; the hooking device is a hook; the first sensing device, the second sensing device and the third sensing device are all photoelectric switches, the throwing device is an electric roller, and the cutting device is a stainless steel cutting blade; the conveying belt of the conveying belt conveyor is an anti-skid conveying belt.
9. An automatic unpacking method based on the automatic unpacking device of any one of claims 4 to 8, characterized by comprising the following steps:
(1) Placing the material bag to be disassembled on a workbench of a conveyor belt conveyor, and conveying the material bag into a dust-proof room under the driving of the conveyor belt;
(2) The bag grabbing device grabs the material bag, the second bag moving mechanism drives the bag grabbing device to move forwards to a position where the material bag is in contact with the cutting device, the first motor drives the plurality of cutting devices arranged on the first motor to rotate, the bottom of the material bag is cut into a plurality of openings, the material in the bag falls from the material dropping opening, and the second bag moving mechanism drives the bag grabbing device to move forwards all the time;
(3) When the material bag moves to the bag throwing opening, the bag grabbing device stops moving forwards, the bag grabbing device acts, the material bag falls off from the bag grabbing device and falls into the throwing device from the bag throwing opening, and the bag grabbing mechanism and the second bag moving mechanism reset;
(4) Repeating the steps (1) to (3), and controlling the cylinder to act to compact the material bag once by the programmable controller at regular intervals; when the number of the unpacked material bags meets the condition, the programmable controller controls the driving motor of the conveyor belt conveyor to stop rotating.
10. The automatic unpacking method of claim 9, wherein the method of judging whether the number of the unpacked bags meets the condition is to preset a numerical value in a programmable controller, send a pulse signal to the programmable controller when the first sensing device is triggered, add one to a count value of the programmable controller, and when the count value is equal to the preset value, indicate that the number of the unpacked bags meets the condition; when the first sensing device and the second sensing device are triggered simultaneously, the motor of the conveyor belt conveyor is controlled to stop rotating.
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