Cloth bag breakage leaking stoppage device and method for dust collection cloth bag machine

Abstract

The invention discloses a cloth bag breakage leakage stopping device and method for a dust collection cloth bag machine. The cloth bag breakage leakage stopping device comprises a displacement part, a transverse moving part, a leakage detecting part, a prompting lamp and a leakage stopping part. The prompting lamp is arranged on the outer wall of the cloth bag machine shell; the two displacement parts are symmetrically arranged on the two sides of the upper end face of the cloth bag platform. The transverse moving part is arranged between the displacement parts on the two sides; and the leakage detecting part and the leakage stopping part are arranged on the transverse moving part. The broken cloth bag can be found in time and blocked in time, and the adverse effect of the broken cloth bag on the dust removal cloth bag machine is effectively reduced.

Description

Technical Field

[0001] The present invention relates to a device and method for plugging damaged bags for a dust removal bag machine, in particular to a device and method capable of detecting the position of damaged bags in a dust removal bag machine and plugging the damaged bags, belonging to the technical field of dust removal bag machine bag plugging equipment. Background Art

[0002] Bag dust collectors are widely used in metallurgy, electric power, cement, chemical industry and other industries. In the metallurgical industry, bag dust collectors are important dust filtering equipment, which can filter the dust entrained in the air flow. In the actual production process, due to the damage of individual bags, the discharged dust increases, the operating efficiency of the bag dust collector decreases, and the wear of the fan increases. At the same time, the dust from the damaged bags settles in the clean air chamber of the dust collector, polluting and clogging other bags, thereby reducing the service life of the bags, increasing the difficulty of maintenance, and seriously affecting the overall filtering effect of the bag dust collector. There are mainly the following methods for detecting the damage of traditional dust collector bags: 1. The operator opens the dust collector box cover, observes the dust accumulation on the surface and makes a rough judgment. After determining the approximate area, the bags are pulled out one by one for inspection. Due to the effect of the airflow of the dust collector, the leaked dust may not accumulate near the leak point. This type of inspection has low accuracy and generates secondary dust. 2. The operator enters the dust collector and directly finds the damaged bags through observation. Due to the harsh internal environment of the dust collector and only the damaged bags at the bottom can be seen from the bottom, the damaged bags in other parts cannot be inspected. It can be seen that the damaged bags cannot be discovered and plugged in time, which affects the use effect of the bag dust collector. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a bag damage plugging device and method for a dust removal bag machine, which can promptly detect the location of the damaged bag and plug the leak in the first place.

[0004] The problem described in the present invention is solved by the following technical solutions: A bag damage plugging device for a dust removal bag machine comprises a displacement part, a transverse displacement part, a leak detection part, a warning light and a leak plugging part; the warning light is arranged on the outer wall of the bag machine shell; the displacement parts are two in number and are symmetrically arranged on both sides of the upper end surface of the bag platform; the transverse displacement part is arranged between the displacement parts on both sides; the leak detection part and the leak plugging part are both arranged on the transverse displacement part.

[0005] The above-mentioned bag damage plugging device for dust bag removal machine, the displacement part includes a first motor, a first lead screw, a first vertical plate, a first lead screw nut and a first slider; the motor and the first vertical plate are respectively arranged at the two ends of the bag platform, and one end of the first lead screw is connected to the output shaft of the first motor, the other end of the first lead screw is axially connected to the first vertical plate, and the axis of the first lead screw is parallel to the length direction line of the bag platform; the first lead screw nut is arranged on the first lead screw; a slide rail is arranged on the bag platform, and the center line of the slide rail is parallel to the center line of the first lead screw, the first slider is slidably arranged on the slide rail, and a hole is arranged on the first slider, and the first lead screw nut is arranged in the inner hole of the first slider; a first infrared rangefinder is arranged on the end face of the first slider close to the first vertical plate; the signal input end of the first motor is connected to the signal output end of the CPU; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

[0006] The above-mentioned bag damage plugging device for a dust removal bag machine, the transverse movement part includes a second motor, a second lead screw, a second vertical plate, a second lead screw nut and a transverse movement mechanism; the transverse movement mechanism is arranged between the first sliders on both sides; the second motor is arranged on the first slider on one side, and the second vertical plate is arranged on the first slider on the other side; one end of the second lead screw is connected to the output shaft of the second motor, and the other end of the second lead screw is axially connected to the second vertical plate; the second lead screw nut is arranged on the second lead screw; a second infrared rangefinder is arranged on the end face of the second lead screw nut close to the second vertical plate; the signal input end of the second motor is connected to the signal output end of the CPU; the signal output end of the second infrared rangefinder is connected to the signal input end of the CPU.

[0007] The above-mentioned bag damage plugging device for a dust removal bag machine, the transverse movement mechanism includes a guide rod, a first slide plate and a second slide plate; the number of the guide rods is two, and they are both arranged between the first slide blocks on both sides, and the center lines of the two guide rods are located on the same horizontal plane; the first slide plate and the second slide plate are both provided with horizontal guide holes, and guide rods are inserted into the guide holes of the first slide plate and the second slide plate; the ends of the first slide plate and the second slide plate are connected; the second lead screw nut is connected to the first slide plate.

[0008] The above-mentioned bag damage plugging device for a dust removal bag machine, the leak detection part includes a first cylinder, a guide plate, a sealing tube and an air volume sensor; the first cylinder is arranged on the top end surface of the first slide plate, and its piston rod vertically passes through the first slide plate; the opening of the sealing tube faces downward, and the center of the top end surface of its outer wall is connected to the end of the piston rod of the first cylinder; a vertical guide hole is provided on the first slide plate, and the guide plate passes through the vertical guide hole of the first slide plate, and the bottom end of the guide plate is connected to the top end surface of the outer wall of the sealing tube; the air volume sensor is arranged on the top end of the sealing tube; the inner diameter of the sealing tube is larger than the outer diameter of the top end of the bag; the signal input end of the first cylinder is connected to the signal output end of the CPU; the signal output end of the air volume sensor is connected to the signal input end of the CPU.

[0009] The above-mentioned bag damage plugging device for dust removal bag machine, the plugging part includes a second cylinder, a conical plug and an electromagnet; the second cylinder is arranged on the upper end surface of the second slide, and its piston rod passes through the central vertical hole of the second slide; the end of the piston rod of the second cylinder is provided with an electromagnet; the tip of the conical plug faces downward; a metal block is inlaid in the center of the top end surface of the conical plug, and the metal block is adsorbed on the electromagnet; the maximum diameter of the conical plug is larger than the inner diameter of the bag.

[0010] In the above-mentioned bag damage plugging device for a dust removal bag machine, the signal input end of the warning light is connected to the signal output end of the CPU.

[0011] In the above-mentioned bag damage plugging device for dust bag removal machine, the horizontal distance between the axis line of the sealing cylinder and the axis line of the conical plug is equal to the distance between the axis lines of two adjacent bags.

[0012] A method for plugging leaks in damaged bags of a dust removal bag machine comprises the following steps: The number and position of the bags on the bag platform are known; according to the cooperation between the first infrared rangefinder and the second infrared rangefinder, the sealing cylinder and the conical plug can be moved to the top of the designated bag; In the initial state, the sealing cylinder is located directly above the cloth bag in the first row and the first column; Step 1: The first cylinder moves to drive the sealing cylinder downward and buckles on the top of the first bag, forming a sealed environment. The air volume sensor records the air volume flowing out of the bag. If the bag is damaged, the air volume is abnormally large. Therefore, the air volume is used to determine whether the bag is damaged. After detecting the air volume, the first cylinder resets and drives the sealing cylinder upward; Step 2: After the first bag is inspected, the second motor is activated to drive the sealing cylinder to move to the second bag in the same row, and then the action of step 1 is repeated until all the bags in the first row are inspected. Then the second motor is activated to drive the sealing cylinder to move to the top of the first bag, and then the first motor is activated to drive the sealing cylinder to move to the first bag in the second row, and then the above actions are repeated until all the bags are inspected. Step 3: Once the air volume of a bag is found to be abnormally large, the bag is determined to be damaged, and then the conical plug is controlled to move to the top of the damaged bag, and then the second cylinder is started to drive the conical plug downward to seal the damaged bag, and then the power of the electromagnet is turned off to cancel the adsorption of the conical plug, and then the second cylinder is reset. After the second cylinder is reset, the electromagnet is powered on again. At the same time, the warning light outside the bag machine is on, prompting the staff to replace the damaged bag in time, and remove the conical plug on the damaged bag and reinstall it under the electromagnet.

[0013] The present invention cooperates with the displacement part and the transverse movement part so that the leak detection part and the leak plugging part can be accurately moved to the top of the designated bag and perform operations; the leak detection part can conduct a comprehensive inspection of the bags on the bag platform, and judge whether the bags are damaged by abnormal air volume; the leak plugging part can seal the damaged bags, and then the warning light can be used to immediately remind the staff that the bags here are damaged and need to be replaced with new ones, thereby greatly reducing the influence of the damaged bags on the filtering effect of the dust removal bag machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the partially enlarged structure of A of the present invention.

[0015] The list of numbers in the figure is: 1. first motor, 2. first vertical plate, 3. first slider, 4. second motor, 5. second lead screw nut, 6. guide rod, 7. first slide plate, 8. second slide plate, 9. first cylinder, 10. guide plate, 11. sealing cylinder, 12. second cylinder, 13. conical plug. DETAILED DESCRIPTION

[0016] See also Figure 1 and Figure 2 The present invention comprises a displacement part, a transverse displacement part, a leak detection part, a warning light and a leak plugging part; the warning light is arranged on the outer wall of the bag making machine shell; the number of the displacement parts is two, and they are symmetrically arranged on both sides of the upper end surface of the bag making platform; the transverse displacement part is arranged between the displacement parts on both sides; the leak detection part and the leak plugging part are both arranged on the transverse displacement part; the cooperation of the displacement part and the transverse displacement part drives the leak detection part and the leak plugging part to move to the top of the designated bag.

[0017] The displacement part includes a first motor 1, a first lead screw, a first vertical plate 2, a first lead screw nut and a first slider 3; the motor and the first vertical plate 2 are respectively arranged at two ends of the cloth bag platform, and one end of the first lead screw is connected to the output shaft of the first motor 1, and the other end of the first lead screw is axially connected to the first vertical plate 2, and the axis line of the first lead screw is parallel to the length direction line of the cloth bag platform; the first motor 1 can drive the first lead screw to rotate, and then mobilize the first lead screw nut and the first slider 3 arranged on the first lead screw nut to move along the axis line direction of the first lead screw; the first lead screw nut is arranged on the first lead screw; a slide rail is arranged on the cloth bag platform, and the center line of the slide rail is parallel to the center line of the first lead screw. Block 3 is slidably arranged on the slide rail, and a hole is arranged on the first slider 3, and the first lead screw nut is arranged in the inner hole of the first slider 3; the relative position of the first slider 3 can be known through the first infrared rangefinder, and similarly, through the cooperation of the first infrared rangefinder and the second infrared rangefinder, the positions of the leak detection part and the leak plugging part can be known in real time. Since the position of the cloth bag is fixed, the leak detection part and the leak plugging part can be moved to the top of the designated cloth bag; the first infrared rangefinder is arranged on the end face of the first slider 3 close to the first vertical plate 2; the signal input end of the first motor 1 is connected to the signal output end of the CPU; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

[0018] The transverse movement part includes a second motor 4, a second lead screw, a second vertical plate, a second lead screw nut 5 and a transverse movement mechanism; the transverse movement mechanism is arranged between the first sliders 3 on both sides; the second motor 4 is arranged on the first slider 3 on one side, and the second vertical plate is arranged on the first slider 3 on the other side; one end of the second lead screw is connected to the output shaft of the second motor 4, and the other end of the second lead screw is axially connected to the second vertical plate; the second lead screw nut 5 is arranged on the second lead screw; the second motor 4 can drive the second lead screw to rotate, and then drive the second lead screw nut to move along the axial center line direction of the second lead screw, and the second lead screw nut 5 drives the first slide plate 7 and the second slide plate 8 to move synchronously; a second infrared rangefinder is arranged on the end face of the second lead screw nut 5 close to the second vertical plate; the second infrared rangefinder can know the position of the second lead screw nut 5 in real time, and then know the position of the first slide plate 7 and the second slide plate 8; the signal input end of the second motor 4 is connected to the signal output end of the CPU; the signal output end of the second infrared rangefinder is connected to the signal input end of the CPU.

[0019] The transverse movement mechanism includes a guide rod 6, a first slide 7 and a second slide 8; there are two guide rods 6, and they are both arranged between the first slide blocks 3 on both sides, and the center lines of the two guide rods 6 are located on the same horizontal plane; horizontal guide holes are provided on the first slide 7 and the second slide 8, and guide rods 6 are inserted into the guide holes of the first slide 7 and the second slide 8; the ends of the first slide 7 and the second slide 8 are connected; the second lead screw nut 5 is connected to the first slide 7; the first slide 7 and the second slide 8 move horizontally under the horizontal guidance of the guide rod 6, and the second lead screw nut 5 drives the first slide 7 and the second slide 8 to move along the guide rod 6.

[0020] The leak detection part includes a first cylinder 9, a guide plate 10, a sealing cylinder 11 and an air volume sensor; the first cylinder 9 is arranged on the top surface of the first slide plate 7, and its piston rod vertically passes through the first slide plate 7; the opening of the sealing cylinder 11 faces downward, and the center of the top surface of its outer wall is connected to the end of the piston rod of the first cylinder 9; the first cylinder 9 drives the vertical rise and fall of the sealing cylinder 11, so that the sealing cylinder 11 can be smoothly buckled on the cloth bag to provide a closed detection environment; a vertical guide hole is provided on the first slide plate 7, and the guide plate 10 passes through the vertical guide hole of the first slide plate 7, and the guide plate 1 0 is connected to the top end surface of the outer wall of the sealing cylinder 11; the guide plate 10 ensures that the sealing cylinder 11 can be smoothly lifted and lowered; the air volume sensor is arranged on the top end of the sealing cylinder 11; the air volume sensor is used to detect the air volume of the cloth bag. If the cloth bag is damaged, the air volume of the cloth bag is abnormally large, so whether the cloth bag is damaged is judged by the size of the air volume; the inner diameter of the sealing cylinder 11 is larger than the outer diameter of the top end of the cloth bag, which ensures that the sealing cylinder 11 is smoothly buckled on the cloth bag; the signal input end of the first cylinder 9 is connected to the signal output end of the CPU; the signal output end of the air volume sensor is connected to the signal input end of the CPU.

[0021] The plugging part includes a second cylinder 12, a conical plug 13 and an electromagnet; the second cylinder 12 is arranged on the upper end surface of the second slide 8, and its piston rod passes through the central vertical hole of the second slide 8; an electromagnet is arranged at the end of the piston rod of the second cylinder 12; the tip of the conical plug 13 faces downward; a metal block is inlaid in the center of the top surface of the conical plug 13, and the metal block is adsorbed on the electromagnet; the second cylinder 12 can drive the conical plug 13 to rise and fall vertically, and the conical plug 13 can be driven by the second cylinder 12 to rise and fall through the cooperation of the electromagnet and the metal block. When the conical plug 13 successfully blocks the top end port of the damaged bag, the electromagnet is powered off, and the conical plug 13 can be left alone on the damaged bag; the maximum diameter of the conical plug 13 is larger than the inner diameter of the bag.

[0022] The signal input end of the warning light is connected to the signal output end of the CPU; when the cloth bag is detected to be damaged, the warning light lights up to remind the staff to replace the damaged cloth bag in time.

[0023] The horizontal distance between the axis line of the sealing cylinder 11 and the axis line of the conical plug 13 is equal to the distance between the axis lines of two adjacent cloth bags; this enables the conical plug 13 to simultaneously seal the previous damaged cloth bag when the sealing cylinder 11 is inspecting the next cloth bag, and the two operations are carried out simultaneously, saving operation time as much as possible.

[0024] The model of the CPU module in the present invention is 87C196KC.

[0025] The operation of the present invention comprises the following steps: The number and position of the bags on the bag platform are known; according to the cooperation between the first infrared rangefinder and the second infrared rangefinder, the sealing cylinder 11 and the conical plug 13 can be moved to the top of the designated bag; In the initial state, the sealing cylinder 11 is located directly above the cloth bag in the first row and the first column; the inspection starts from the first cloth bag in the first row, and the inspection continues row by row until all the cloth bags are inspected; Step 1: The first cylinder 9 moves to drive the sealing cylinder 11 downward and buckles on the top of the first bag, forming a sealed environment. The air volume sensor records the air volume flowing out of the bag. If the bag is damaged, the air volume is abnormally large, so the air volume is used to determine whether the bag is damaged. After detecting the air volume, the first cylinder 9 is reset to drive the sealing cylinder 11 upward; Step 2: After the first bag is inspected, the second motor 4 is activated to drive the sealing cylinder 11 to move to the second bag in the same row, and then the action of step 1 is repeated until all the bags in the first row are inspected, and then the second motor 4 is activated to drive the sealing cylinder 11 to move to the top of the first bag, and then the first motor 1 is activated to drive the sealing cylinder 11 to move to the first bag in the second row, and then the above actions are repeated until all the bags are inspected; Step three: Once it is found that the air volume of a certain bag is abnormally large, the bag is determined to be damaged, and then the conical plug 13 is controlled to move to the top of the damaged bag, and then the second cylinder 12 is started to drive the conical plug 13 downward to seal the damaged bag, and then the power of the electromagnet is turned off to cancel the adsorption of the conical plug 13. At this time, the conical plug 13 is left alone at the port of the damaged bag, and then the second cylinder 12 is reset. After the second cylinder 12 is reset, the electromagnet is powered on again. At the same time, the prompt light outside the bag machine is on, prompting the staff to replace the damaged bag in time, and remove the conical plug 13 on the damaged bag and reinstall it under the electromagnet.

Claims

1. A bag damage plugging device for a dust bag removal machine, characterized in that: It includes a displacement part, a transverse displacement part, a leak detection part, a warning light and a leak plugging part; the warning light is arranged on the outer wall of the bag making machine shell; the number of the displacement parts is two, and they are symmetrically arranged on both sides of the upper end surface of the bag making platform; the transverse displacement part is arranged between the displacement parts on both sides; the leak detection part and the leak plugging part are both arranged on the transverse displacement part.

2. The bag damage plugging device for a dust bag removal machine according to claim 1 is characterized in that: The displacement part comprises a first motor (1), a first lead screw, a first vertical plate (2), a first lead screw nut and a first slider (3); the motor and the first vertical plate (2) are respectively arranged at two ends of the bag platform, and one end of the first lead screw is connected to the output shaft of the first motor (1), and the other end of the first lead screw is axially connected to the first vertical plate (2), and the axis of the first lead screw is parallel to the length direction line of the bag platform; the first lead screw nut is arranged on the first lead screw; a slide rail is arranged on the bag platform, and the center line of the slide rail is parallel to the center line of the first lead screw, the first slider (3) is slidably arranged on the slide rail, and the first slider (3) is provided with a hole, and the first lead screw nut is arranged in the inner hole of the first slider (3); a first infrared rangefinder is arranged on the end surface of the first slider (3) close to the first vertical plate (2); the signal input end of the first motor (1) is connected to the signal output end of the CPU; the signal output end of the first infrared rangefinder is connected to the signal input end of the CPU.

3. The bag damage plugging device for a dust bag removal machine according to claim 2 is characterized in that: The transverse movement part comprises a second motor (4), a second lead screw, a second vertical plate, a second lead screw nut (5) and a transverse movement mechanism; the transverse movement mechanism is arranged between the first sliders (3) on both sides; the second motor (4) is arranged on the first slider (3) on one side, and the second vertical plate is arranged on the first slider (3) on the other side; one end of the second lead screw is connected to the output shaft of the second motor (4), and the other end of the second lead screw is axially connected to the second vertical plate; the second lead screw nut (5) is arranged on the second lead screw; a second infrared rangefinder is arranged on the end surface of the second lead screw nut (5) close to the second vertical plate; the signal input end of the second motor (4) is connected to the signal output end of the CPU; the signal output end of the second infrared rangefinder is connected to the signal input end of the CPU.

4. The bag damage plugging device for a dust bag removal machine according to claim 3 is characterized in that: The transverse movement mechanism comprises a guide rod (6), a first slide plate (7) and a second slide plate (8); the number of the guide rods (6) is two, and both are arranged between the first slide plates (3) on both sides, and the center lines of the two guide rods (6) are located on the same horizontal plane; the first slide plate (7) and the second slide plate (8) are both provided with horizontal guide holes, and the guide rods (6) are inserted into the guide holes of the first slide plate (7) and the second slide plate (8); the ends of the first slide plate (7) and the second slide plate (8) are connected; and the second lead screw nut (5) is connected to the first slide plate (7).

5. The bag damage plugging device for a dust bag removal machine according to claim 4, characterized in that: The leak detection part comprises a first cylinder (9), a guide plate (10), a sealing cylinder (11) and an air volume sensor; the first cylinder (9) is arranged on the top end surface of the first slide plate (7), and its piston rod vertically passes through the first slide plate (7); the opening of the sealing cylinder (11) faces downward, and the center of the top end surface of its outer wall is connected to the end of the piston rod of the first cylinder (9); the first slide plate (7) is provided with a vertical guide hole, and the guide plate (10) passes through the vertical guide hole of the first slide plate (7), and the bottom end of the guide plate (10) is connected to the top end surface of the outer wall of the sealing cylinder (11); the air volume sensor is arranged on the top end of the sealing cylinder (11); the inner diameter of the sealing cylinder (11) is larger than the outer diameter of the top end of the cloth bag; the signal input end of the first cylinder (9) is connected to the signal output end of the CPU; the signal output end of the air volume sensor is connected to the signal input end of the CPU.

6. The bag damage plugging device for a dust bag removal machine according to claim 5, characterized in that: The plugging part comprises a second cylinder (12), a conical plug (13) and an electromagnet; the second cylinder (12) is arranged on the upper end surface of the second slide plate (8), and its piston rod passes through the central vertical hole of the second slide plate (8); the end of the piston rod of the second cylinder (12) is provided with an electromagnet; the tip of the conical plug (13) faces downward; a metal block is embedded in the center of the top end surface of the conical plug (13), and the metal block is adsorbed on the electromagnet; the maximum diameter of the conical plug (13) is greater than the inner diameter of the cloth bag.

7. The bag damage plugging device for a dust bag removal machine according to claim 6, characterized in that: The signal input end of the warning light is connected to the signal output end of the CPU.

8. The bag damage plugging device for a dust bag removal machine according to claim 7, characterized in that: The horizontal distance between the axis center line of the sealing cylinder (11) and the axis center line of the conical plug (13) is equal to the distance between the axis center lines of two adjacent cloth bags.

9. A method for plugging bag damage for a dust bag removal machine according to any one of claims 1 to 8, characterized in that: The steps include: The number and position of the bags on the bag platform are known; according to the cooperation between the first infrared rangefinder and the second infrared rangefinder, the sealing cylinder (11) and the conical plug (13) can be moved to the position directly above the designated bag; In the initial state, the sealing cylinder (11) is located directly above the cloth bags in the first row and the first column; Step 1: The first cylinder (9) is actuated to drive the sealing cylinder (11) downward to buckle above the first cloth bag, thereby forming a sealed environment. The air volume sensor records the air volume flowing out of the cloth bag. If the cloth bag is damaged, the air volume is abnormally large. Therefore, whether the cloth bag is damaged is determined based on the air volume. After the air volume is detected, the first cylinder (9) is reset to drive the sealing cylinder (11) upward. Step 2: After the first bag is inspected, the second motor (4) is activated to drive the sealing cylinder (11) to move to the second bag in the same row, and then the steps of step 1 are repeated until all bags in the first row are inspected, then the second motor (4) is activated to drive the sealing cylinder (11) to move to the top of the first bag, and then the first motor (1) is activated to drive the sealing cylinder (11) to move to the first bag in the second row, and then the above steps are repeated until all bags are inspected; Step 3: Once it is found that the air volume of a bag is abnormally large, it is determined that the bag is damaged, and then the conical plug (13) is controlled to move to the top of the damaged bag, and then the second cylinder (12) is started to drive the conical plug (13) downward to seal the damaged bag, and then the power of the electromagnet is turned off to cancel the adsorption of the conical plug (13), and then the second cylinder (12) is reset. After the second cylinder (12) is reset, the electromagnet is powered on again. At the same time, the warning light outside the bag machine is on, prompting the staff to replace the damaged bag in time, and remove the conical plug (13) on the damaged bag and reinstall it under the electromagnet.

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