Dust removal equipment based on semi-anisotropic barium powder for curtain magnetic strip

Abstract

The application relates to the technical field of dust removal, and particularly discloses a dust removal equipment based on semi-dissymmetric barium powder production of a door curtain magnetic strip, which comprises a processing machine box, a dust suction pipeline is fixedly installed at the top of the processing machine box, a dust suction cover is fixedly connected to the end of the dust suction pipeline, the dust removal equipment further comprises a dust filtering assembly, the dust filtering assembly comprises a connecting cover fixedly connected to the inside of the dust suction pipeline, a filtering screen is fixedly connected to the ring side of the connecting cover in an annular array, a dust scraping assembly is arranged on the outside of the connecting cover, the dust filtering assembly further comprises a push-out pipe fixedly inserted on the two sides of the dust suction pipeline, a moving rod is arranged in the inside of the push-out pipe, a push-out plate is fixedly connected to the side of the moving rod close to the axis of the dust suction pipeline, through cooperation of the above structure, the barium powder scraped off from the filtering screen can be discharged from the dust suction pipeline without stopping the machine, the scraped barium powder can be prevented from remaining in the filtering position, the blocking of the filtering screen can be reduced, and the barium powder filtering effect is improved.

Description

Technical Field

[0001] This invention relates to the field of dust removal technology, and in particular to a dust removal device based on semi-isotropic barium powder produced for door curtain magnetic strips. Background Technology

[0002] The core component of door curtain magnetic strips is a composite of magnetic powder and a rubber or plastic matrix. The type and arrangement of the magnetic powder directly determine the magnetic properties of the strip. The production of anisotropic rubber magnetic strips requires the use of semi-isotropic barium powder. This type of magnetic powder is oriented through a magnetic field orientation process to achieve strong magnetism. The dust generated during the production of semi-isotropic barium powder contains barium and its compounds. Long-term inhalation of this dust will cause it to accumulate in the lungs. Even if it initially only manifests as non-specific respiratory symptoms such as coughing and chest tightness, it will still cause continuous damage to the respiratory tract of operators and seriously threaten occupational health. Dust removal can directly reduce the dust concentration in the workshop and reduce the amount of dust inhaled by personnel. It is the core means of preventing occupational health risks. Therefore, it is necessary to remove the dust dispersed in the air through dust removal equipment.

[0003] After barium powder in the air is drawn into the dust collection hood, it needs to be initially filtered through a filter screen to separate large particles of barium powder from the air. The filtered air then enters the dust removal equipment for further filtration. During the initial filtration of large particles of barium powder, the barium powder easily clogs the filter screen pores as filtration progresses. Existing technology uses scraping to clean the filter screen, but the barium powder scraped off still remains in the filter position. The barium powder will fall back onto the filter screen as filtration continues, easily causing filter screen blockage and thus affecting the barium powder filtration effect. Summary of the Invention

[0004] The purpose of this invention is to provide a dust removal device based on semi-isotropic barium powder used in door curtain magnetic strips, which can discharge barium powder scraped off the filter screen into the dust collection pipe without stopping the machine, preventing the scraped barium powder from remaining in the filter position, reducing filter screen blockage, and thus improving the barium powder filtration effect, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips, comprising a processing chassis, a dust suction pipe fixedly installed on the top of the processing chassis, and a dust suction hood fixedly connected to the end of the dust suction pipe; the dust removal device further includes:

[0006] A dust filter assembly is disposed inside a dust collection duct. The dust filter assembly includes a connecting cover fixedly connected inside the dust collection duct. A filter screen is fixedly connected to the ring side of the connecting cover in a ring array. A dust scraper assembly is disposed on the outside of the connecting cover. The dust filter assembly also includes push-out tubes fixedly inserted into both sides of the dust collection duct. A moving rod is disposed inside the push-out tube. A push-out plate is fixedly connected to the outside of the moving rod near the axis of the dust collection duct. A limiting plate is slidably connected to the outside of the moving rod away from the axis of the dust collection duct. The dust filter assembly also includes a sleeve fixedly connected to the outside of the dust collection duct. A top frame is slidably connected to the inside of the sleeve. A first spring is fixedly connected between the end of the top frame and the inside of the sleeve. A transmission assembly for moving the moving rod is disposed inside the dust collection duct. A groove is formed inside the dust collection duct corresponding to the position of the push-out plate.

[0007] Preferably, the dust scraping assembly includes a moving frame disposed inside the dust suction pipe, with an air pipe fixedly inserted into the bottom of the moving frame in a ring, and a scraper fixedly connected to the bottom of the air pipe. The dust suction pipe is provided with a drive unit for moving the moving frame up and down.

[0008] Preferably, the transmission assembly includes a vertical rod fixedly connected to the bottom of the motion frame, a ring frame fixedly connected to the bottom of the vertical rod, a lifting frame fixedly connected to the bottom of the ring frame, a pressing rod fixedly connected to the inner side of the lifting frame, and the transmission assembly also includes a circular tube fixedly inserted into the inner side of the connecting cover, a large tube fixedly connected to the end of the circular tube, a first piston movably connected inside the large tube, a second spring fixedly connected between the top of the first piston and the inner side of the large tube, and the end of the moving rod extending into the interior of the circular tube and movably connected to the second piston.

[0009] Preferably, a collection pipe is fixedly connected to the outside of the suction pipe corresponding to the outside of the push-out pipe, and a collection cover is detachably connected to the outside of the collection pipe.

[0010] Preferably, the upper part of the ejector plate is provided with a leak-proof component, which includes a circular groove formed on the upper part of the ejector plate, a crossbar slidably connected to the upper part of the ejector plate inside the circular groove, a sealing plate fixedly connected to the outer side of the crossbar, and a third spring fixedly connected between the outer side of the sealing plate and the circular groove.

[0011] Preferably, the elastic force of the third spring is less than that of the first spring.

[0012] Preferably, a flexible tube is fixedly connected to the top of the motion frame, with the end of the flexible tube extending out from the dust suction pipe, and a spray pipe is fixedly connected to the bottom of the scraper frame.

[0013] Preferably, a spray groove is provided on the ring side of the ring frame corresponding to the position of the filter screen, a corrugated bladder is fixedly connected between the top of the middle part of the ring frame and the connecting cover, an air inlet pipe is fixedly inserted into the top of the corrugated bladder, an air outlet pipe is fixedly inserted into the bottom of the corrugated bladder and the ring frame, and a check valve is installed inside both the air inlet pipe and the air outlet pipe.

[0014] Preferably, the vacuum duct is internally equipped with a shaking inlet assembly, which includes an elastic membrane fixedly connected to the front and rear ends inside the vacuum duct. A lifting frame is fixedly connected to the bottom middle position of the elastic membrane. The lifting frame is slidably connected to the vacuum duct. A fixed shaft is fixedly connected inside the lifting frame, and a squeezing plate is rotatably connected to the outside of the fixed shaft.

[0015] Preferably, a torsion spring is fixedly connected between the fixed shaft and the extrusion plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The combination of the transmission component and the dust filter component allows the barium powder scraped off the filter screen to be discharged from the dust collection pipe without stopping the machine, preventing the scraped barium powder from remaining in the filter position, reducing the chance of the filter screen becoming clogged, and thus improving the barium powder filtration effect;

[0018] 2. As the ejector plate moves closer to the limiting plate, the space between the ejector plate and the limiting plate gradually decreases. The air and barium powder particles inside the ejector tube located between the ejector plate and the limiting plate return to the inside of the dust collection pipe from the circular groove and ventilation groove. This reduces the presence of barium powder in the air between the ejector plate and the limiting plate, thus reducing barium powder leakage and further improving the effect of barium powder removal.

[0019] 3. Both the scraper and the ring frame move upwards. When the scraper moves upwards to scrape and clean the filter screen, air is sprayed out through the spray channel onto the filter screen, which has a backwashing effect and improves the cleaning effect of the filter screen.

[0020] 4. Before the barium powder is pushed out by the ejector plate, the lifting frame lifts the middle part of the elastic membrane, so that the falling barium powder can fall into the inside of the groove, thereby further improving the effect of barium powder removal. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is an overall structural view of the present invention;

[0023] Figure 2 This is a partial structural diagram of the dust extraction pipe of the present invention;

[0024] Figure 3 This is a half-sectional structural diagram of the dust extraction pipe of the present invention;

[0025] Figure 4 This is a partial structural schematic diagram of the connecting cover of the present invention;

[0026] Figure 5 This is a partial structural schematic diagram of the motion frame of the present invention;

[0027] Figure 6 This is a half-sectional structural diagram of the motion frame of the present invention;

[0028] Figure 7 This is a partial structural schematic diagram of the large tube of the present invention;

[0029] Figure 8 This is a half-sectional view of the movable rod of the present invention;

[0030] Figure 9 This is a half-sectional view of the ejection plate of the present invention;

[0031] Figure 10 This is a schematic diagram of a half-section of the sleeve of the present invention;

[0032] Figure 11 This is a partial side sectional view of the dust extraction pipe of the present invention;

[0033] Figure 12 This is a partial structural schematic diagram of the torsion spring of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Processing chassis; 2. Suction pipe; 3. Suction hood; 4. Dust filter assembly; 41. Connecting cover; 42. Filter screen; 43. Push-out pipe; 44. Moving rod; 45. Push-out plate; 46. Limiting plate; 47. Sleeve; 48. Top frame; 49. First spring; 410. Groove; 5. Dust scraper assembly; 51. Moving frame; 52. Vent pipe; 53. Scraper frame; 54. Drive unit; 55. Flexible tube; 56. Spray pipe; 6. Transmission assembly; 61. Vertical rod; 62. Ring frame; 63. Lifting frame; 6 4. Extrusion rod; 65. Round tube; 66. Large tube; 67. First piston; 68. Second spring; 69. Second piston; 610. Spray groove; 611. Bellows; 612. Air inlet pipe; 613. Air outlet pipe; 614. Check valve; 7. Leak prevention assembly; 71. Round groove; 72. Crossbar; 73. Sealing plate; 74. Third spring; 8. Shaking assembly; 81. Elastic membrane; 82. Lifting frame; 83. Fixed shaft; 84. Extrusion plate; 85. Torsion spring; 9. Collection cover; 10. Collection pipe. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example: Please refer to Figures 1 to 12 This invention provides a technical solution: a dust removal device based on the production of semi-anisotropic barium powder for door curtain magnetic strips, including a processing box 1, a dust suction pipe 2 fixedly installed on the top of the processing box 1, a dust suction hood 3 fixedly connected to the end of the dust suction pipe 2, and the dust removal device also includes a dust filter assembly 4 disposed inside the dust suction pipe 2. A fan is disposed inside the processing box 1, so that air containing barium powder from the outside enters the dust suction pipe 2, is initially filtered by the dust filter assembly 4, and enters the processing box 1. Subsequently, the fine particles of barium powder are processed inside the processing box 1. This technology is a mature existing technology and will not be described in detail.

[0038] The dust filter assembly 4 includes a connecting cover 41 fixedly connected inside the suction pipe 2. A filter screen 42, made of metal, is fixedly connected to the annular array on the circumferential side of the connecting cover 41. A dust scraper assembly 5 is disposed on the outer side of the connecting cover 41. The dust filter assembly 4 also includes push-out pipes 43 fixedly inserted into both sides of the suction pipe 2. A moving rod 44 is disposed inside the push-out pipe 43. A push-out plate 45 is fixedly connected to the side of the moving rod 44 closest to the axis of the suction pipe 2, and a push-out plate 45 is fixedly connected to the side of the moving rod 44 furthest from the axis of the suction pipe 2. A limiting plate 46 is slidably connected, and an O-ring is installed on the inner side of the limiting plate 46. The dust filter assembly 4 also includes a sleeve 47 fixedly connected to the outside of the suction pipe 2. The sleeve 47 is fixed to the suction pipe 2 by a mounting bracket. A top frame 48 is slidably connected to the inner side of the sleeve 47. A first spring 49 is fixedly connected between the end of the top frame 48 and the inner side of the sleeve 47. A transmission assembly 6 for moving the moving rod 44 is configured inside the suction pipe 2. A groove 410 is provided inside the suction pipe 2 at the position corresponding to the push-out plate 45.

[0039] The dust scraping assembly 5 includes a moving frame 51 disposed inside the dust suction pipe 2. An air pipe 52 is fixedly inserted into the bottom of the moving frame 51 in a ring. A scraper 53 is fixedly connected to the bottom of the air pipe 52. The dust suction pipe 2 is equipped with a drive unit 54 for moving the moving frame 51 up and down. The drive unit 54 can be driven by a motor to rotate a reciprocating lead screw. A lead screw sleeve is fixedly connected to the inside of the moving frame 51. The output shaft of the motor drives the reciprocating lead screw to rotate, thereby moving the lead screw sleeve and the moving frame 51 in the up and down direction. The drive unit 54 can also move the moving frame 51 in the up and down direction by using an electric telescopic rod to extend and retract.

[0040] The transmission assembly 6 includes a vertical rod 61 fixedly connected to the bottom of the motion frame 51, a ring frame 62 fixedly connected to the bottom of the vertical rod 61, a lifting frame 63 fixedly connected to the bottom of the ring frame 62, and a pressing rod 64 fixedly connected to the inner side of the lifting frame 63. The transmission assembly 6 also includes a round tube 65 fixedly inserted into the inner side of the connecting cover 41, a large tube 66 fixedly connected to the end of the round tube 65, a first piston 67 movably connected inside the large tube 66, a second spring 68 fixedly connected between the top of the first piston 67 and the inner side of the large tube 66, and a second piston 69 movably connected to the end of the moving rod 44 extending into the interior of the round tube 65. The outer side of the second piston 69 is in contact with the inner side of the round tube 65, and the outer side of the first piston 67 is in contact with the inner side of the large tube 66.

[0041] By adopting the above technical solution, barium powder enters the interior with the air. Large particles of barium powder are filtered through the filter screen 42. At the same time, through the action of the drive unit 54, the moving frame 51 can reciprocate in the vertical direction, and the air pipe 52 can move the scraper 53 in the vertical direction. The scraper 53 cleans the filter screen 42 and scrapes off the barium powder attached to the filter screen 42 to prevent the filter screen 42 from becoming clogged.

[0042] The scraped-off barium powder falls into the groove 410. As the moving frame 51 reciprocates in the vertical direction, the vertical rod 61 moves along the vertical direction with the ring frame 62. The ring frame 62 moves along the lifting frame 63 and the extrusion rod 64. When the extrusion rod 64 moves upward and its top moves close to the first piston 67 and extrudes the first piston 67, the first piston 67 can overcome the elastic force of the second spring 68 and move upward. At this time, the medium inside the large tube 66 enters the interior of the round tube 65. Under the pressure of the medium, the second piston 69 moves away from the axis of the suction pipe 2 with the moving rod 44. When the extrusion rod 64 moves downward with the lifting frame 63, the first piston 67 moves downward under the elastic force of the second spring 68. Thus, the second piston 69 moves closer to the axis of the suction pipe 2 with the moving rod 44. The resistance of the second piston 69 is less than the elastic force of the second spring 68.

[0043] When the moving rod 44 moves away from the axis of the suction pipe 2, the moving rod 44 moves the ejector plate 45, and the limiting plate 46 also moves with the moving rod 44 until the side of the limiting plate 46 is in contact with the end face of the top frame 48. Under the elastic force of the first spring 49, the limiting plate 46 can no longer move until the moving rod 44 continues to move, causing the ejector plate 45 to move to the outlet position of the ejector tube 43. Under the squeezing action of the ejector tube 43, the limiting plate 46 can squeeze the top frame 48, and the top frame 48 moves away from the suction pipe 2. At this time, the first spring 49 is in a compressed state until the side of the ejector plate 45 close to the limiting plate 46 slightly protrudes from the outlet of the ejector tube 43. At this time, the ejector plate 45 can push the barium powder that has fallen into the groove 410 out of the ejector tube 43.

[0044] When the moving rod 44 moves toward the axis of the suction pipe 2, the push plate 45 returns to its original position near the axis of the suction pipe 2, so that the barium powder that has fallen into the groove 410 can be pushed out next time.

[0045] It should be noted that rubber rings are fixedly connected to the outer sides of both the ejector plate 45 and the limiting plate 46. When the ejector plate 45 and the limiting plate 46 are inside the ejector tube 43, they can seal the ejector tube 43 to prevent the dust from leaking with the air. In the initial state, the limiting plate 46 is located inside the ejector tube 43 to block the ejector tube 43. When the ejector plate 45 enters the ejector tube 43 and ejects the barium powder, the ejector plate 45 blocks the inside of the ejector tube 43 to prevent the dust from leaking with the air. This design allows the barium powder scraped off the filter screen 42 to be discharged from the dust collection pipe 2 without stopping the machine, preventing the scraped barium powder from remaining in the filter position, reducing the clogging of the filter screen 42, and thus improving the barium powder filtration effect.

[0046] It should be noted that when the ejector plate 45 moves toward the axis of the suction pipe 2, the top frame 48 pushes the limiting plate 46 under the elastic force of the first spring 49, ensuring that the limiting plate 46 is located inside the ejector tube 43.

[0047] It should be noted that the inner diameter of the large tube 66 is larger than that of the round tube 65. When the moving frame 51 moves upward and moves the scraper 53 to the position above the filter screen 42, the extrusion rod 64 begins to extrude the first piston 67. When the moving frame 51 moves to the top, the extrusion rod 64 completes the extrusion of the first piston 67. At this time, as the moving rod 44 moves, the side of the push plate 45 near the limiting plate 46 moves to a state where it slightly protrudes from the outlet of the push tube 43. This design allows the barium powder to be pushed out of the push tube 43 by the movement of the push plate 45 when the scraping of the filter screen 42 stops.

[0048] A collection pipe 10 is fixedly connected to the outside of the suction pipe 2 corresponding to the external push pipe 43. A collection cover 9 is detachably connected to the outside of the collection pipe 10. The surface of the collection cover 9 is provided with a sieve hole. The collection cover 9 and the collection pipe 10 can be detachably connected by a threaded connection.

[0049] By adopting the above technical solution, the barium powder pushed out from the push tube 43 will fall into the inside of the collection tube 10 and the collection cover 9, and the inside of the collection tube 10 and the collection cover 9 can be cleaned periodically by disassembling the collection cover 9.

[0050] The upper part of the ejector plate 45 is provided with a leak-proof component 7. The leak-proof component 7 includes a circular groove 71 opened on the upper part of the ejector plate 45. A crossbar 72 is slidably connected inside the circular groove 71 on the upper part of the ejector plate 45. A sealing plate 73 is fixedly connected to the outside of the crossbar 72. A third spring 74 is fixedly connected between the outside of the sealing plate 73 and the circular groove 71. The elastic force of the third spring 74 is less than the elastic force of the first spring 49.

[0051] A sealing gasket is fixedly connected inside the circular groove 71. In the initial state, under the elastic force of the third spring 74, the sealing plate 73 squeezes the sealing gasket to block the position of the circular groove 71 and prevent air from passing through the circular groove 71. The push plate 45 is located on the side of the circular groove 71 near the axis of the dust suction pipe 2 and has a ventilation groove.

[0052] By adopting the above technical solution, as the moving rod 44 moves the ejector plate 45 away from the axis of the suction pipe 2, under the restriction of the crossbar 72, when the limiting plate 46 is in contact with the top frame 48 and is limited by the top frame 48, and because the end of the crossbar 72 is limited by the limiting plate 46, and because the elastic force of the third spring 74 is less than that of the first spring 49, the third spring 74 deforms first. At this time, the crossbar 72, along with the closing plate 73, generates relative movement with the ejector plate 45, so that the closing plate 73 no longer aligns with the circular groove 71. The position is blocked, allowing air to pass through the ventilation slot. At the same time, as the ejector plate 45 moves closer to the position of the limiting plate 46, the space between the ejector plate 45 and the limiting plate 46 gradually decreases. The air and barium powder particles inside the ejector pipe 43 located between the ejector plate 45 and the limiting plate 46 return to the inside of the dust collection pipe 2 from the circular groove 71 and the ventilation slot, reducing the leakage of barium powder caused by the presence of barium powder in the air between the ejector plate 45 and the limiting plate 46, and further improving the effect of barium powder removal.

[0053] It should be noted that when the crossbar 72 can no longer generate relative movement with the ejector plate 45, the crossbar 72 compresses the limiting plate 46, causing the top frame 48 to overcome the elastic force of the first spring 49, facilitating the movement of the limiting plate 46 away from the end of the ejector tube 43. The ejector plate 45 extends slightly from the outlet of the ejector tube 43 on the side closest to the limiting plate 46. At this time, under the action of the crossbar 72, there is still a gap between the ejector plate 45 and the limiting plate 46, ensuring that the ejected barium powder can fall smoothly.

[0054] A flexible tube 55 is fixedly connected to the top of the motion frame 51. The end of the flexible tube 55 extends out from the dust suction pipe 2. A spray pipe 56 is fixedly connected to the bottom of the scraper frame 53. The spray pipe 56 is set at an angle so as to be aligned with the filter screen 42. It should be noted that the amount of water sprayed from the spray pipe 56 is relatively small.

[0055] By adopting the above technical solution, the flexible tube 55 is connected to an external water pump. When the scraper 53 moves downward to scrape the filter screen 42, the water pump is started to spray water from the spray pipe 56, which makes it easier to wet the barium powder on the filter screen 42 and make it clump together, so that the barium powder can fall smoothly into the groove 410, thereby improving the effect of pushing the barium powder out of the push-out pipe 43.

[0056] It should be noted that when the scraper 53 moves upward to scrape the filter screen 42, the water pump will no longer be activated to spray water.

[0057] The ring frame 62 has spray grooves 610 on its ring side corresponding to the position of the filter screen 42. A corrugated bladder 611 is fixedly connected between the top of the middle part of the ring frame 62 and the connecting cover 41. An air inlet pipe 612 is fixedly inserted into the top of the corrugated bladder 611, and an air outlet pipe 613 is fixedly inserted into the bottom of the corrugated bladder 611 and the ring frame 62. Check valves 614 are installed inside both the air inlet pipe 612 and the air outlet pipe 613. The installation method and principle of the check valve 614 are mature existing technologies and will not be described in detail. The check valve 614 inside the air inlet pipe 612 does not allow air inside the corrugated bladder 611 to be discharged from the air inlet pipe 612, and the check valve 614 inside the air outlet pipe 613 does not allow air inside the ring frame 62 to return to the inside of the corrugated bladder 611.

[0058] It should be noted that the position of the scraper 53 corresponds to the position of the ring frame 62.

[0059] By adopting the above technical solution, when the motion frame 51 moves downward with the vertical rod 61 and the ring frame 62, the bellows 611 is stretched, and the air inside the connecting cover 41 enters the bellows 611 through the air inlet pipe 612. When the motion frame 51 moves upward with the vertical rod 61 and the ring frame 62, the ring frame 62 cooperates with the connecting cover 41 to compress the bellows 611, so that the air inside the bellows 611 enters the interior of the ring frame 62.

[0060] During this process, both the scraper 53 and the ring frame 62 move upward. When the scraper 53 moves upward to scrape and clean the filter screen 42, air is sprayed out through the spray groove 610 and sprayed onto the filter screen 42, which has a backwashing effect and improves the cleaning effect of the filter screen 42.

[0061] The vacuum duct 2 is equipped with a shaking inlet assembly 8. The shaking inlet assembly 8 includes an elastic membrane 81 fixedly connected to the front and rear ends inside the vacuum duct 2. A lifting frame 82 is fixedly connected to the bottom middle position of the elastic membrane 81. The lifting frame 82 is slidably connected to the vacuum duct 2. A fixed shaft 83 is fixedly connected inside the lifting frame 63. A squeezing plate 84 is rotatably connected to the outside of the fixed shaft 83. A torsion spring 85 is fixedly connected between the fixed shaft 83 and the squeezing plate 84. The elastic force of the torsion spring 85 is greater than the elastic force of the elastic membrane 81.

[0062] It should be noted that in the initial state, the pressing plate 84 is in a horizontal state under the elastic force of the torsion spring 85.

[0063] By adopting the above technical solution, in the initial state, under the elastic force of the elastic membrane 81, the bottom of the lifting frame 82 contacts the inside of the dust suction pipe 2. When the ring frame 62 moves downward with the lifting frame 63, the extrusion plate 84 contacts the lifting frame 82. Since the lifting frame 82 cannot move downward at this time, the extrusion plate 84 overcomes the elastic force of the torsion spring 85 and deflects, making it easier for the extrusion plate 84 to pass through the lifting frame 82.

[0064] When the ring frame 62 moves upward with the lifting frame 63, before the pressing rod 64 presses the first piston 67, the pressing plate 84 contacts the lifting frame 82. Since the elastic force of the torsion spring 85 is greater than the elastic force of the elastic membrane 81, the pressing plate 84 moves upward with the lifting frame 82, and the elastic membrane 81 deforms until the lifting frame 82 can no longer move upward. The pressing plate 84 deflects through the lifting frame 82, and under the elastic force of the elastic membrane 81, the lifting frame 82 moves downward to reset.

[0065] This design allows the lifting frame 82 to lift the middle part of the elastic membrane 81 before the barium powder is pushed out by the ejector plate 45, so that the falling barium powder can fall into the interior of the groove 410, thereby further improving the effect of barium powder removal.

[0066] Working principle: Driven by the drive unit 54, the moving frame 51 reciprocates vertically, causing the vent pipe 52 to move along with the scraper 53 in the same direction. The scraper 53 cleans the filter screen 42, removing barium powder to prevent clogging. The removed barium powder falls into the groove 410. Simultaneously, the moving frame 51 reciprocates vertically, causing the vertical rod 61 to move along with the ring frame 62. The ring frame 62 then moves the lifting frame 63 and the pressing rod 64. When the pressing rod 64 moves upwards, its top approaches the first piston 67 and presses it, causing the first piston 67 to overcome the force of the second spring 68 and move upwards. At this time, the medium inside the large pipe 66 enters the round pipe 65. Under pressure, the second piston 69 moves the moving rod 44 away from the axis of the suction pipe 2. The moving rod 44 moves the ejector plate 45, and the limiting plate 46 also moves with the moving rod 44 until the side of the limiting plate 46 is in contact with the end face of the top frame 48. Under the elastic force of the first spring 49, the limiting plate 46 can no longer move until the moving rod 44 continues to move, causing the ejector plate 45 to move to the outlet position of the ejector tube 43. Under the squeezing action of the ejector tube 43, the limiting plate 46 can squeeze the top frame 48, and the top frame 48 moves away from the suction pipe 2. At this time, the first spring 49 is in a compressed state until the side of the ejector plate 45 close to the limiting plate 46 slightly protrudes from the outlet of the ejector tube 43. At this time, the ejector plate 45 can push the barium powder that has fallen into the groove 410 out of the ejector tube 43.

[0067] As the moving rod 44 moves the ejector plate 45 away from the axis of the suction pipe 2, the limiting plate 46 is in contact with the top frame 48 and is limited by the top frame 48 under the limiting action of the crossbar 72. Since the end of the crossbar 72 is limited by the limiting plate 46, the third spring 74 deforms first because its elastic force is less than that of the first spring 49. At this time, the crossbar 72 moves relative to the sealing plate 73 and the ejector plate 45, so that the sealing plate 73 no longer blocks the position of the circular groove 71, allowing air to pass through the ventilation groove. At the same time, as the ejector plate 45 moves closer to the position of the limiting plate 46, the space between the ejector plate 45 and the limiting plate 46 gradually decreases. The air and barium powder particles inside the ejector pipe 43 located between the ejector plate 45 and the limiting plate 46 return to the inside of the suction pipe 2 from the circular groove 71 and the ventilation groove, reducing the leakage of barium powder caused by the presence of barium powder in the air between the ejector plate 45 and the limiting plate 46.

[0068] The flexible tube 55 is connected to an external water pump. When the scraper 53 moves downward to scrape the filter screen 42, the water pump is activated to spray water from the spray pipe 56, which helps to wet the barium powder on the filter screen 42 and make it clump together. When the ring frame 62 moves upward with the lifting frame 63, before the extrusion rod 64 extrudes the first piston 67, the extrusion plate 84 contacts the lifting frame 82. Since the elastic force of the torsion spring 85 is greater than the elastic force of the elastic membrane 81, the extrusion plate 84 moves upward with the lifting frame 82, and the elastic membrane 81 deforms until the lifting frame 82 can no longer move upward. The extrusion plate 84 deflects through the lifting frame 82. Under the elastic force of the elastic membrane 81, the lifting frame 82 moves downward to reset, so that before the ejector plate 45 ejects the barium powder, the lifting frame 82 lifts the middle part of the elastic membrane 81, which facilitates the falling barium powder to fall into the interior of the groove 410.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips, comprising a processing unit (1), a dust suction pipe (2) fixedly installed on the top of the processing unit (1), and a dust suction hood (3) fixedly connected to the end of the dust suction pipe (2), characterized in that, Dust removal equipment also includes: A dust filter assembly (4) is disposed inside the suction pipe (2). The dust filter assembly (4) includes a connecting cover (41) fixedly connected inside the suction pipe (2). A filter screen (42) is fixedly connected to the ring side of the connecting cover (41) in an annular array. A dust scraper assembly (5) is disposed on the outside of the connecting cover (41). The dust filter assembly (4) also includes a push-out pipe (43) fixedly inserted into both sides of the suction pipe (2). A moving rod (44) is disposed inside the push-out pipe (43). A push-out plate (45) is fixedly connected to the side of the moving rod (44) near the axis of the suction pipe (2). A limiting plate (46) is slidably connected to the side of the moving rod (44) away from the axis of the suction pipe (2). The dust filter assembly (4) also includes a sleeve (47) fixedly connected to the outside of the suction pipe (2). A top frame (48) is slidably connected to the inside of the sleeve (47). A first spring (49) is fixedly connected between the end of the top frame (48) and the inside of the sleeve (47). A transmission assembly (6) for moving the moving rod (44) is arranged inside the suction pipe (2). A groove (410) is provided inside the suction pipe (2) corresponding to the position of the push-out plate (45).

2. The dust removal equipment based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 1, characterized in that: The dust scraper assembly (5) includes a motion frame (51) disposed inside the dust suction pipe (2), an air pipe (52) is fixedly inserted into the bottom of the motion frame (51) in a ring, a scraper (53) is fixedly connected to the bottom of the air pipe (52), and a drive unit (54) for moving the motion frame (51) up and down is disposed inside the dust suction pipe (2).

3. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 2, characterized in that: The transmission assembly (6) includes a vertical rod (61) fixedly connected to the bottom of the motion frame (51), a ring frame (62) fixedly connected to the bottom of the vertical rod (61), a lifting frame (63) fixedly connected to the bottom of the ring frame (62), a pressing rod (64) fixedly connected to the inner side of the lifting frame (63), and a round tube (65) fixedly inserted into the inner side of the connecting cover (41). A large tube (66) is fixedly connected to the end of the round tube (65), a first piston (67) is movably connected inside the large tube (66), a second spring (68) is fixedly connected between the top of the first piston (67) and the inner side of the large tube (66), and a second piston (69) is movably connected to the end of the moving rod (44) extending into the interior of the round tube (65).

4. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 3, characterized in that: A collection pipe (10) is fixedly connected to the outside of the suction pipe (2) corresponding to the outside of the push-out pipe (43), and a collection cover (9) is detachably connected to the outside of the collection pipe (10).

5. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 4, characterized in that: The upper part of the ejector plate (45) is provided with a leak-proof component (7). The leak-proof component (7) includes a circular groove (71) opened on the upper part of the ejector plate (45). A crossbar (72) is slidably connected to the upper part of the ejector plate (45) inside the circular groove (71). A sealing plate (73) is fixedly connected to the outside of the crossbar (72). A third spring (74) is fixedly connected between the outside of the sealing plate (73) and the circular groove (71).

6. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 5, characterized in that: The elastic force of the third spring (74) is less than that of the first spring (49).

7. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 6, characterized in that: A flexible tube (55) is fixedly connected to the top of the motion frame (51), and the end of the flexible tube (55) passes through the dust suction pipe (2). A spray pipe (56) is fixedly connected to the bottom of the scraper frame (53).

8. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 7, characterized in that: A spray groove (610) is provided on the ring side of the ring frame (62) corresponding to the position of the filter screen (42). A corrugated bladder (611) is fixedly connected between the top of the middle part of the ring frame (62) and the connecting cover (41). An air inlet pipe (612) is fixedly inserted into the top of the corrugated bladder (611), and an air outlet pipe (613) is fixedly inserted between the bottom of the corrugated bladder (611) and the ring frame (62). Check valves (614) are installed inside both the air inlet pipe (612) and the air outlet pipe (613).

9. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 8, characterized in that: The vacuum duct (2) is equipped with a shaking inlet assembly (8). The shaking inlet assembly (8) includes an elastic membrane (81) fixedly connected to the front and rear ends inside the vacuum duct (2). A lifting frame (82) is fixedly connected to the bottom middle position of the elastic membrane (81). The lifting frame (82) is slidably connected to the vacuum duct (2). A fixed shaft (83) is fixedly connected inside the lifting frame (63). A squeezing plate (84) is rotatably connected to the outside of the fixed shaft (83).

10. A dust removal device based on semi-anisotropic barium powder used for door curtain magnetic strips according to claim 9, characterized in that: A torsion spring (85) is fixedly connected between the fixed shaft (83) and the extrusion plate (84).

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