CN101487386A - Automatic feeding apparatus for powder lot in bags - Google Patents

Abstract

An automatic feeding device for bagged powder, including an electric control system, a pneumatic transmission system and a machine body. The mechanism sends the powder into the powder feeding mechanism and distributes the powder into the silo, and the packaging bag is recycled by the empty bag recycling mechanism. First, the bagged powder is sent into the main body of the material through the bag conveying mechanism, and the bag is removed by the bag opening and discharging mechanism, and the powder is distributed to the small silo by the horizontal screw conveying mechanism, and then lifted by the vertical screw mechanism In the large silo, the empty bags are recycled through the empty bag recycling mechanism, fully considering the working environment, all the parts entering the tank are dust-proof, and the reliability and repetition times of linear movement are fully guaranteed. The invention has high feeding efficiency, the human body does not come into contact with the powder, has no pollution, can effectively protect the health of the operator, and fully meets the requirement of pollution-free feeding.

Description

Automatic feeding device for bagged powder

1. Technical field

The invention relates to an automatic feeding device for bagged powder in a closed environment for opening, pouring, distributing and emptying bagged powder, which is applied in the field of petrochemical industry.

2. Background technology

The current state advocates resource conservation and environmental protection. At present, the addition of powder materials in the tertiary oil recovery process of oil fields is completed by manual feeding. Workers must wear masks and protective clothing to work. When the powder absorbed by the workers is greater than 5000PPM, the absorption of nutrients by the gastrointestinal mucosa is blocked, which will cause great harm to the health of the workers, the labor intensity of the workers is high, and the utilization rate of the powder is low. Therefore, each oil field urgently needs an automatic feeding system for bagged powder.

The bagged powder automatic feeding system changes the existing manual feeding method to automatic feeding, which improves the feeding efficiency by more than 50%, completes all operations in a closed environment, avoids contact between people and dust, and can effectively Improve the working environment of workers, reduce labor intensity, and improve the utilization rate of powder.

3. Contents of the invention

The purpose of the present invention is to provide an automatic feeding device for bagged powder, which can automatically complete the work of bag loading, bag opening, material dumping, material distribution, and empty bag recovery. This feeding system improves the feeding efficiency by more than 50%. Moreover, all work is done in a closed environment, avoiding the contact between people and dust, which can effectively improve the working environment of workers, reduce labor intensity, and improve the utilization rate of powder.

The present invention is realized through the following technical solutions: an automatic feeding device for bagged powder, including an electric control system, a pneumatic transmission system and a machine body. Send it into the material dumping body, send the powder material into the powder material feeding mechanism through the bag opening mechanism and distribute the powder material into the silo, and then use the empty bag recycling mechanism to recycle the packaging bag.

The above material bag conveying mechanism is composed of guide rollers, support rollers, driving rollers, tensioning devices, conveyor belts and motors on the guide frame connected to the material bag entering the sealing door of the dumping main body. The guide angle is 45°, and the conveyor belt is human. Word non-slip type.

The above-mentioned powder feeding mechanism includes a bag-opening and discharging mechanism opposite to the sealed door where the material bag in the discharging main body enters, a screw conveying mechanism and a feeding mechanism connected with the discharging main body, and a material level sensor arranged on the material bin. and empty bag recycling facilities.

The above-mentioned bag opening and discharging mechanism includes a feeding plate connected to the platform of the feeding mechanism, a cutter mechanism and a discharging mechanism that complete specified actions; the screw conveying mechanism includes a horizontal screw connected to the lower part of the discharging main body and the upper part of the small silo The feeding mechanism and the vertical screw feeding mechanism that the lower part of the small silo is connected with the upper part of the large silo.

The above-mentioned cutter mechanism consists of a guide rod installed on the upper side of the body of the bag fixing device, a cutter guide rod installed on the front side of the bag fixing device through the rod, a knife holder of the cutter guide rod, and a cylinder that pushes the bag material to move. composition.

The above-mentioned unwinding mechanism is composed of a material plate, a cylinder and a rotating shaft that promote the movement of the material plate.

The above-mentioned empty bag recovery mechanism is composed of a cylinder that drives the material bag, a shaping roller and a baler.

The above-mentioned electrical control system takes PLC as the control core, and uses the PLC program to automatically control the specified sequential action control. The control system is equipped with complete protection measures and alarm prompts to achieve high reliability control operations.

The above-mentioned pneumatic transmission system is composed of an air compressor, an air storage tank, an air filter and a lubricator. The air storage tank is respectively connected to the cylinder for feeding and moving the dry powder bag through the air control valve, and the cylinder for realizing the action of the dry powder bag passing through the rod. 1. The cylinder for cutting the dry powder bag, the cylinder for grasping the empty bag of the dry powder bag, the cylinder for pushing out the dry powder bag and driving the sealing door are connected to the electromagnetic reversing valve.

Due to the adoption of the above structure, the present invention first sends the bagged powder into the discharge main body through the material bag conveying mechanism, uses the bag opening and discharging mechanism to remove the packaging bag, and uses the horizontal screw conveying mechanism to distribute the powder into the small silo , and then use the vertical screw mechanism to lift it into the large silo, and at the same time recycle the empty bag through the empty bag recycling mechanism, fully considering the working environment, all the parts entering the tank are dust-proof, and the reliability and repetition times of linear movement are fully guaranteed. The invention has high feeding efficiency. The human body does not touch the powder, without any pollution, which can effectively protect the health of the operator and fully meet the needs of pollution-free feeding.

4. Description of drawings

Fig. 1 is a structural representation of the present invention

Figure 2 is a schematic diagram of bag opening and empty bag recycling

Figure 3 is a schematic diagram of the pneumatic system

Figure 4 is a schematic diagram of the electrical control system

Figure 5 is a schematic diagram of the action sequence

1-Air compressor and accessories 2-Middle small silo 3-Small silo lower level sensor 4-Small silo upper material sensor 5-Left small silo 6-Left horizontal screw conveyor 7-Left vertical Screw conveyor 8-Lower material level sensor of large silo 9-Left large silo 10-Upper material level sensor of large silo 11-Empty bag sorting mechanism 12-Middle large silo 13-Middle vertical screw conveyor 14 -Large silo on the right 15-Vertical screw conveyor on the right 16-Dust suction device 17-Main material dumping body 18-Material bag enters the sealed door 19-Bag conveying mechanism 20-Horizontal screw conveyor on the right 21-Small material on the right Warehouse 22-Electrical Control Cabinet 23-Through Rod Guide Rod 24-Through Rod 25-Bag Fixing Device 26-Cutter Guide Rod 27-Material Plate 28-Knife Holder 29-Empty Bag Organizer 30-Empty Bag Outlet Sealed Door 31-Photoelectric Proximity Switch 32-Rotating Shaft 33-Empty Bag After Shaping Out of the Storage Sealed Door 34-Guide Rod 35-Manipulator 36-Shaping Roller 37-Motor 38-Empty Bag Down Passage 39-Cylinder for Pushing Empty Bag.

5. Specific implementation

Referring to Fig. 1-Fig. 4, the present invention comprises body, is provided with silo on the body, sends bagged powder in the silo 17 through bag conveying mechanism 19, makes bag-opening and discharging mechanism in the packing bag in the airtight environment The material is poured out, and the powder is distributed to the left small silo 5, the middle small silo 2 and the right small silo 21 with the left horizontal screw conveying mechanism 6 and the right horizontal screw conveying mechanism 20. The vertical screw mechanism 7 is lifted to the left large silo 9, the middle vertical screw mechanism 13 is used to lift the middle large silo 12, and the right vertical screw mechanism 15 is lifted to the right large silo 14. The bag recovery mechanism 11 recovers empty bags. One system of the present invention can supply materials for three polymer injection production lines.

The above-mentioned material bag conveying mechanism 19 is composed of guide rollers, support rollers, driving rollers, tensioning devices, conveyor belts and motors installed on the body. In order to make the structure of the workshop compact, the angle of the conveying mechanism reaches 45°, in order to prevent material bags from Sliding, the conveyor belt uses a herringbone non-slip conveyor belt. A photoelectric proximity switch 31 is installed at the end of the conveyor belt. When the material bag is close to the discharge body, the photoelectric proximity switch 31 acts, the PLC controls the sealing door 18 to open, and the feeding cylinder acts to push the material bag into the material plate in the discharge body 17 27 on.

The above-mentioned dumping body is provided with a dust suction device 16, a bag-opening dumping mechanism and an empty bag recovery mechanism of the dumping body 17. The main body of unloading is a closed environment, and three airtight doors are set, respectively, the airtight door 18 for the passage of material bag entry, the airtight door 33 for the exit passage of a single empty bag, and the airtight door 30 for the exit passage of bundled empty bags; The top of the main body 17 is equipped with a dust suction device 16, any airtight door is opened, the dust suction device 16 works, and the air flows into the bin to effectively prevent the powder from leaking out. Automatic limit control for silos.

The above-mentioned bag opening and discharging mechanism comprises a material bag fixing device 25, a cutter, a threading rod and a discharging mechanism. Cutter mechanism is made up of guide bar 26 that is fixed on the feed bin and the cylinder that promotes cutter motion and cutter, knife rest 28 etc. The threading rod mechanism is made up of the guide rod 23 that is fixed on the feed bin and the cylinder that pushes the threading rod to move, and the threading rod 24. The material dumping mechanism is made up of material plate 27, rotating shaft 32 and the cylinder that promotes material plate motion etc. The material bag is pushed in from the outside and parked on the material plate 27, its position is limited by the material bag fixing device 25, the threading rod 24 is inserted into the material bag, the cutter moves along the guide rod 26, the material bag is cut open, and then The material plate 27 rotates around the rotating shaft 32 to the vertical direction under the action of the cylinder, and the material falls under the action of its own weight, while the empty bag has a threading rod to limit its position and does not fall. Repeat the action of the material plate rotation 3 times, and the material in the bag can be Pour clean.

Above-mentioned empty bag recovery mechanism is made up of the cylinder that promotes material bag motion, guide rod 34, the manipulator 35 that catches empty bag, shaping roller 36, motor 37, the cylinder 39 that pushes away empty bag and packer etc.

The above-mentioned distributing mechanism consists of 2 horizontal screw rods 6, 20 on the right and left, 3 vertical screw rods 7, 13, 15 on the left, middle and right positions, and three small feed bins 5, 2, 21 on the left, middle and right positions. , three large silos 9, 12, and 14 in the left, middle and right positions, and material level sensors installed on the top and flat bottom of the large and small silos.

The above-mentioned pneumatic transmission system consists of an air compressor, an air storage tank, an air filter, an oil mist device, a cylinder that realizes the feeding action of the dry powder bag, a cylinder that realizes the movement of the dry powder bag through the rod, a cylinder that realizes the action of cutting the dry powder bag, and a cylinder that realizes the action of dry powder bag cutting. It is composed of a cylinder for grabbing the empty bag, a cylinder for pushing out the dry powder bag and driving the sealing door, and an electromagnetic reversing valve.

The schematic diagram of the control is shown in Figure 3. The functions of cylinder A-J and reversing valve YA-YJ are shown in Table 1.

Table 1 The function of cylinder A-J and reversing valve YA-YJ

Cylinder number A B C D. E. f G h J Reversing valve number YA YB YC YD YE YF YG YH YJ effect delivery bag Into the bag sealed door cutter shake bag Rod Empty bag Airtight door for empty bags Empty bags launched Reshape empty bags out of the warehouse and seal the door

The above-mentioned electric control system takes PLC as the control core, and uses PLC program to automatically control and complete the prescribed sequential action control. The control system is equipped with complete protection measures and alarm prompts to achieve high reliability control operations.

The working process of the present invention: first, the bagged powder is conveyed upwards through the material bag conveying mechanism 19, the photoelectric proximity switch 31 operates, the PLC controls the sealing door 18 to open, and the feeding cylinder acts to push the material bag into the material plate 27 in the main system of discharging First, the position is limited by the material bag fixing device 25, the threading rod 24 is inserted into the material bag, the cutter moves along the guide rod 26, and the material bag is cut open, and then the material plate 27 repeats around the rotating shaft 32 under the action of the cylinder. Rotate 3 times, and the material in the bag can be emptied clean; bag grabbing manipulator 35 takes out the empty bag, puts it into the shaping roller 36, after the backlog is formed, stacks it in the empty bag sorting box 29, after a certain amount, it is pushed out by the cylinder 39 and placed On the baler, pack and ship away. Use the left and right horizontal screw conveying mechanisms 6 and 20 to distribute the powder to the middle small silo 2, the left small silo 5 and the right small silo 21, and use the left vertical screw mechanism 7 to lift to the left large silo In, be promoted to middle position large feed bin 12 with middle position vertical screw mechanism 13, be promoted in the right position large feed bin 14 with right position vertical screw mechanism 15. The schematic diagram of the action sequence is shown in Figure 5.

Claims (9)

1. An automatic feeding device for bagged powder, including an electric control system, a pneumatic transmission system and a machine body. The material dumping mechanism sends the powder into the powder feeding mechanism and distributes the powder into the silo, and the packaging bag is recycled by the empty bag recycling mechanism. 2. The bagged powder automatic feeding device according to claim 1, characterized in that the bag conveying mechanism consists of guide rollers, support rollers, Composed of driving roller, tensioning device, conveyor belt and motor, the guide angle is 45°, and the conveyor belt is herringbone non-slip type. 3. The bagged powder automatic feeding device according to claim 1, characterized in that the powder feeding mechanism includes a bag opening and discharging mechanism that is arranged in the main body of the discharging material and enters the sealed door opposite to the bag opening and discharging mechanism. The screw conveying mechanism and the feeding mechanism connected to the material dumping main body, the material level sensor and the empty bag recovery mechanism arranged on the hopper. 4. The bagged powder automatic feeding device according to claim 1 or 3, characterized in that the bag opening and discharging mechanism includes a feeding plate connected to the platform of the feeding mechanism, and a cutter that completes prescribed actions Mechanism and feeding mechanism; the screw conveying mechanism includes a horizontal screw feeding mechanism connected with the lower part of the discharging main body and the upper part of the small silo, and a vertical screw feeding mechanism connected with the lower part of the small silo and the upper part of the large hopper. 5. The bagged powder automatic feeding device according to claim 1 or 4, characterized in that the cutter mechanism is installed on the side of the material bag fixing device by the upper-level guide rod through the body, and the rod is installed on the material bag. It is composed of the cutter guide rod on the front side of the fixing device, the knife holder of the cutter guide rod and the cylinder that pushes the bag material to move. 6. The bagged powder automatic feeding device according to claim 1 or 4, characterized in that the feeding mechanism is composed of a material board, a cylinder and a rotating shaft that pushes the material board to move. 7. The bagged powder automatic feeding device according to claim 1, characterized in that the empty bag recovery mechanism is composed of a cylinder that pushes the bag to move, a shaping roller and a baler. 8. The bagged powder automatic feeding device according to claim 1, characterized in that the electrical control system uses PLC as the control core, uses PLC program automatic control to complete the prescribed sequential action control, and the control system is equipped with perfect protection Measures and alarm prompts to achieve high reliability control operations. 9. The bagged powder automatic feeding device according to claim 1, characterized in that the pneumatic transmission system is composed of an air compressor, an air storage tank, an air filter and a lubricator, and the air storage tank is controlled by air The valves realize the cylinder for feeding and moving the powder bag, the cylinder for passing the dry powder bag through the rod, the cylinder for cutting the dry powder bag, the cylinder for grabbing the empty bag, the pushing out of the dry powder bag and the driving of the sealing door The cylinder is connected with the electromagnetic reversing valve.

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