A fully automatic ton bag packaging machine

Abstract

The present application discloses a fully automatic ton bag packaging machine, which includes a dustproof box, a feed pipe and a dust removal assembly, one end of the feed pipe extends into the dustproof box, a connecting opening is provided at the bottom end of the dustproof box, the feed pipe includes an outer cylinder, an annular top plate and an annular bottom plate, the annular top plate is connected to the opening at the top end of the outer cylinder, the annular bottom plate is connected to the opening at the bottom end of the outer cylinder, the dust removal assembly includes a screen, a dust removal connecting pipe, a negative pressure pump and a dust collecting box, the screen is cylindrical with openings at both ends, the screen is arranged in the feed pipe, the top end of the screen is connected to the annular top plate, the bottom end of the screen is connected to the annular bottom plate, one end of the dust removal connecting pipe is connected to the outer cylinder, and the other end is connected to the dust collecting box, and the negative pressure pump is arranged on the dust removal connecting pipe. The present application has the effect of reducing the dust content in the material during bagging and improving the quality of the material.

Description

Technical Field

[0001] The present application relates to the technical field of packaging equipment, and in particular to a fully automatic ton bag packaging machine. Background Art

[0002] Ton bags, also known as flexible bulk bags, space bags, etc., are a type of medium-sized bulk container. They are usually made of polyester fiber materials such as polypropylene and polyethylene, and processed with woven fabrics or composite materials. Ton bags are generally equipped with lifting rings or other devices on the top for easy lifting. The bottom is often equipped with inlets and outlets for loading and unloading of goods.

[0003] The ton bag packaging machine is a device used to automatically pack materials into ton bags. It can automatically complete the material measurement, filling, exhaust, sealing and other processes according to the preset packaging weight, thereby realizing fast, accurate and efficient packaging of materials. When filling the material, the feeding bag opening of the ton bag is placed on the blanking opening of the ton bag packaging machine, and the material falls into the ton bag through the blanking opening of the ton bag packaging machine.

[0004] With regard to the above-mentioned related technologies, the inventor believes that during the loading process of the above-mentioned ton bag packaging machine, since some materials have relatively high requirements for microorganisms or dust, and some dust will be mixed in the granular materials, the dust will fall into the ton bag during the loading process. In addition, during the bagging process, since the material drop opening of the ton bag packaging machine is in an open state, other dust in the external environment is also easy to fall into the ton bag, affecting the bagging quality. Summary of the invention

[0005] In order to reduce the dust content in the material during the bagging process and improve the material quality, the present application provides a fully automatic ton bag packaging machine.

[0006] The fully automatic ton bag packaging machine provided in this application adopts the following technical solution:

[0007] The dust collecting box is annular in shape, and the dust collecting box has a top end and a bottom end, and the dust collecting box has a bottom end and a bottom end. The dust collecting box has a top end and a bottom end. The dust collecting box has a top end and a bottom end. The dust collecting box has a top end and a bottom end.

[0008] By adopting the above technical solution, during the bagging process, the feed bag opening is set on the feed opening, and the material is loaded through the feed pipe. When the material passes through the screen, the negative pressure pump is started, and negative pressure is formed in the outer cylinder. The dust in the material passes through the screen into the outer cylinder under the action of negative pressure, and finally enters the dust collecting box through the dust removal connecting pipe for temporary storage. Through the mutual cooperation of the dustproof box, the feed pipe and the dust removal component, the dust content in the material during the bagging process is reduced and the material quality is improved.

[0009] Optionally, an annular airbag is circumferentially connected to the outer wall of the outer tube, an air supply pipe is connected to the annular airbag, a control air source is provided at one end of the air supply pipe away from the annular airbag, a clamp is provided in the dustproof box, the clamp is coaxially arranged on the outside of the annular airbag, and a gap is left between the clamp and the annular airbag.

[0010] By adopting the above technical solution, before bagging, the feeding bag mouth is passed through the gap between the annular airbag and the clamp. The control air source is turned on, and the control air source supplies air to the annular airbag through the air supply pipe. The volume of the annular airbag continues to increase and the feeding bag mouth is sealed and clamped between the clamp and the annular airbag. The setting of the annular airbag and the clamp realizes the sealed connection between the bag mouth and the feeding pipe, reducing the possibility of material leakage or external dust entering the ton bag.

[0011] Optionally, the screen, the annular top plate, the annular bottom plate and the outer cylinder together form a dust suction chamber, and a cleaning assembly is provided in the dust suction chamber, and the cleaning assembly includes a scraper, and the scraper is arranged in the dust suction chamber along the central axis direction of the dust suction chamber, and a rubber scraper strip is arranged on the side of the scraper close to the screen, and the rubber scraper strip is arranged in contact with the outer annular wall of the screen, and a driving member for driving the scraper to slide along the outer wall of the screen is provided in the dust suction chamber.

[0012] By adopting the above technical solution, the scraper slides along the circumferential direction in the dust suction chamber under the driving action of the driving member, and the rubber scraper strips arranged on the scraper clean the outer annular wall of the screen, thereby reducing the possibility of dust clogging the screen surface.

[0013] Optionally, a charging cylinder is coaxially connected to the top of the outer cylinder, a corona needle is provided in the charging cylinder, a polytetrafluoroethylene layer is provided on the inner ring wall of the outer cylinder, a plurality of connecting rods are horizontally connected to the scraper, a friction aluminum block is connected to one end of the connecting rod close to the polytetrafluoroethylene layer, and the friction aluminum block is provided in contact with the polytetrafluoroethylene layer.

[0014] By adopting the above technical solution, the material passes through the charging cylinder, and the corona needle discharges to make the dust in the material negatively charged. The friction aluminum block rubs against the polytetrafluoroethylene layer as the scraper rotates, and the polytetrafluoroethylene layer rubs and generates positive electricity. The negatively charged dust passes through the screen and is adsorbed on the polytetrafluoroethylene layer, which helps to improve the dust collection efficiency of the device.

[0015] Optionally, a dust outlet is provided on the annular bottom plate, and the bottom end of the outer cylinder is coaxially connected with a dust collecting ring cavity with an opening at the top, the dust collecting ring cavity is connected to the dust suction cavity through the dust outlet, and the dust collecting ring cavity is detachably connected to the outer cylinder.

[0016] By adopting the above technical solution, when the scraper stops rotating, the friction aluminum block stops rubbing the polytetrafluoroethylene layer, the polytetrafluoroethylene layer gradually loses its positive charge, and the dust adsorbed on the polytetrafluoroethylene layer falls into the dust collecting ring cavity through the dust falling port under the action of gravity for collection. Since the dust collecting ring cavity is detachably connected to the outer cylinder, the dust collecting ring cavity can be directly removed for cleaning.

[0017] Optionally, the dust outlets are arranged in an arc shape at equal intervals on the annular bottom plate, and a closed partition is slidably fitted on the top surface of the annular bottom plate. The closed partition includes a closed ring and a plurality of closed arc plates equidistantly arranged on the outer ring wall of the closed ring. The closed ring is rotatably sleeved on the screen, and a driving member for driving the closed ring to rotate is provided on the outer cylinder. When the closed ring rotates to a certain angle, the closed arc plate covers the dust outlet.

[0018] By adopting the above technical solution, after a period of dust collection in the dust collecting ring cavity, the closed partition is rotated, and a plurality of closed slides on the closed partition block a plurality of dust outlets, thereby preventing the dust in the dust collecting ring cavity from re-entering the dust suction cavity.

[0019] Optionally, two semicircular rotating cover plates are rotatably provided on the bottom surface of the dustproof box, and the two rotating cover plates are respectively arranged on two opposite sides of the connecting opening. When the two rotating cover plates are rotated to fit with the bottom surface of the dustproof box, the two rotating cover plates are assembled into a complete circle and block the connecting opening.

[0020] By adopting the above technical solution, when it is not necessary to bag the materials, the two rotating cover plates are rotated until they cover the connecting openings, thereby reducing the possibility of external dust entering the dustproof box and contaminating it.

[0021] Optionally, a plug-in ring groove corresponding to the screen is provided on the top surface of the annular bottom plate, a sealing ring is provided in the plug-in ring groove, the bottom end of the screen is inserted in the plug-in ring groove, an external thread is provided on the outer circumferential wall of the top end of the screen, an internal thread is provided on the inner circumferential wall of the annular top plate, and the top end of the screen is threadedly connected to the inner circumferential wall of the annular top plate.

[0022] By adopting the above technical solution, since the screen is detachably connected to the annular top plate and the annular bottom plate, when the screen needs to be cleaned, the screen can be directly removed for cleaning.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the cooperation of the dustproof box, feeding pipe and dust removal components, the dust content in the material during bagging can be reduced and the material quality can be improved;

[0025] 2. The dust in the material is adsorbed on the positively charged polytetrafluoroethylene layer under the action of electrostatic adsorption, which helps to improve the dust collection efficiency of the device;

[0026] 3. The setting of the cleaning component helps to reduce the possibility of clogging of the screen and helps to improve the dust collection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an embodiment of the present application for embodying a fully automatic ton bag packaging machine.

[0028] Figure 2 It is a partial cross-sectional view used to reflect the internal structure of the dustproof box in the embodiment of the present application.

[0029] Figure 3 It is a partial cross-sectional view used to reflect the control gas source in the embodiment of the present application.

[0030] Figure 4 yes Figure 2 Enlarged view of part A in the middle.

[0031] Figure 5 yes Figure 2 Enlarged view of part B in the middle.

[0032] Figure 6 yes Figure 2 Enlarged view of part C in the middle.

[0033] Description of reference numerals: 1. feeding pipe; 101. annular top plate; 102. outer cylinder; 103. annular bottom plate; 1031. dust outlet; 2. dust removal assembly; 21. screen; 22. dust removal connecting pipe; 23. regulating valve; 24. negative pressure pump; 25. dust collecting box; 3. dustproof box; 31. box door; 32. connecting opening; 33. rotating cover plate; 34. first sealing strip; 35. second sealing strip; 4. cleaning assembly; 41. scraper; 42. rubber scraper; 43. cleaning motor; 44. driving gear; 45. driving gear ring; 46. connecting Connecting rod; 47, friction aluminum block; 5, annular air bag; 6, air pipe; 7, control air source; 8, clamp; 9, mounting rod; 10, charging flashlight; 11, plug-in ring groove; 12, corona needle; 13, wire; 14, sealing ring; 15, guide ring; 16, guide groove; 17, polytetrafluoroethylene layer; 18, dust collecting ring cavity; 181, dust outlet opening; 182, dust outlet bottom plate; 183, guide arc strip; 19, closed partition; 191, closed ring; 192, closed arc plate; 20, first magnet; 26, second magnet; 27, sliding arc groove. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 The present application is further described in detail. The present application provides a fully automatic ton bag packaging machine, which has the effect of reducing the dust content in the material during the bagging process and improving the quality of the material.

[0035] Reference Figure 1 and Figure 2 A fully automatic ton bag packaging machine includes a feed pipe 1, a dust removal component 2, a dustproof box 3 and a cleaning component 4. The feed pipe 1 includes an annular top plate 101, an outer cylinder 102 and an annular bottom plate 103. The outer cylinder 102 is cylindrical with openings at both ends. The annular top plate 101 is threadedly connected to the top opening of the outer cylinder 102, and the annular bottom plate 103 is fixedly connected to the inner circumferential wall of the bottom opening of the outer cylinder 102. The outer cylinder 102 vertically penetrates the top wall of the dustproof box 3 and is fixedly connected thereto, and one end of the outer cylinder 102 extends into the inner cavity of the dustproof box 3. A box door 31 is rotatably connected to one of the vertical side walls of the dustproof box 3 through a hinge. The box door 31 is made of glass for easy observation of the internal structure of the dustproof box 3. A connecting opening 32 is coaxially provided on the bottom wall of the dustproof box 3 with respect to the feed pipe 1.

[0036] Reference Figure 2The inner bottom wall of the dustproof box 3 is connected to two semicircular rotating cover plates 33 by hinge rotation, and the two rotating cover plates 33 are symmetrically arranged on opposite sides of the communication opening 32. A first sealing strip 34 is connected to the straight side of the rotating cover plate 33, and a semicircular second sealing strip 35 is connected to the side of the rotating cover plate 33 facing the communication opening 32. The radius of the rotating cover plate 33 is greater than the radius of the communication opening 32. When the two rotating cover plates 33 rotate to fit the inner bottom wall of the dustproof box 3, the two first sealing strips 34 fit each other, and the second sealing strip 35 fits the inner ring wall of the communication opening 32.

[0037] Reference Figure 2 and Figure 3 The bottom end of the outer tube 102 is sleeved with an annular airbag 5, and the annular airbag 5 is connected to an air delivery pipe 6, and one end of the air delivery pipe 6 away from the annular airbag 5 is connected to a control air source 7. A clamp 8 is coaxially arranged on the outside of the feed pipe 1, and the clamp 8 corresponds to the position of the annular airbag 5 with a gap. A mounting rod 9 is vertically connected to the clamp 8, and the top end of the mounting rod 9 is connected to the inner top wall of the dustproof box 3.

[0038] Reference Figure 1-3 The top surface of the annular top plate 101 is coaxially fixedly connected with a charging cylinder 10, and a corona needle 12 is arranged inside the charging cylinder 10, and a wire 13 is connected to the corona needle 12. The dust removal component 2 includes a screen 21, a dust removal connecting pipe 22, a regulating valve 23, a negative pressure pump 24 and a dust collecting box 25. The screen 21 is cylindrical with openings at both ends. The outer ring wall at the top of the screen 21 is provided with an external thread, and the inner ring wall of the annular top plate 101 is provided with an internal thread. The inner ring wall of the annular top plate 101 is threadedly connected to the outer ring wall of the screen 21. Figure 4 The top surface of the annular bottom plate 103 is provided with a plug-in ring groove 11 corresponding to the screen 21, and a sealing ring 14 is arranged inside the plug-in ring groove 11. The bottom end of the screen 21 is inserted into the plug-in ring groove 11. Two dust removal connecting pipes 22 are connected on the outer wall of the outer cylinder 102. The regulating valve 23 and the negative pressure pump 24 are sequentially arranged on the dust removal connecting pipe 22 in a direction away from the outer cylinder 102. The end of the dust removal connecting pipe 22 away from the outer cylinder 102 is connected to the dust collecting box 25.

[0039] Reference Figure 2 and Figure 5The cleaning assembly 4 is arranged on the feed pipe 1, and the cleaning assembly 4 includes a scraper 41, a rubber scraper strip 42, a cleaning motor 43, a driving gear 44, a driving gear ring 45, a connecting rod 46 and a friction aluminum block 47. The driving gear ring 45 is coaxially fixedly connected to the bottom surface of the annular top plate 101, and the inner ring wall of the driving gear ring 45 is provided with inner teeth. The annular top plate 101, the annular bottom plate 103, the outer cylinder 102 and the screen 21 together form a dust suction chamber, the scraper 41 is arranged in the dust suction chamber along the central axis direction of the outer cylinder 102, the rubber scraper strip 42 is connected to the side of the scraper 41 close to the screen 21 along the length direction of the scraper 41, and the rubber scraper strip 42 is in contact with the outer ring wall of the screen 21. Two guide rings 15 are horizontally fixedly connected to the outer ring wall of the screen 21, and a guide groove 16 corresponding to the guide ring 15 is provided on the side of the scraper 41 close to the screen 21, and the guide ring 15 is slidably connected to the guide groove 16. The cleaning motor 43 is connected to the scraper 41 , and the output shaft of the cleaning motor 43 extends vertically upward and is transmission-connected to the driving gear 44 , and the driving gear 44 is meshingly connected to the driving gear ring 45 .

[0040] Reference Figure 4-6 , a plurality of connecting rods 46 are horizontally fixedly connected to the side of the scraper 41 away from the screen 21, and a friction aluminum block 47 is fixedly connected to the end of the connecting rod 46 away from the scraper 41. A polytetrafluoroethylene layer 17 is provided on the inner ring wall of the outer cylinder 102, and the friction aluminum block 47 is in close contact with the polytetrafluoroethylene layer 17. A dust collecting ring cavity 18 is provided at the bottom end of the outer cylinder 102, and the top of the dust collecting ring cavity 18 is open. An external thread is provided on the outer ring wall of the top opening of the dust collecting ring cavity 18, and the bottom end of the outer cylinder 102 extends toward the bottom of the annular bottom plate 103 and is provided with an internal thread, and the dust collecting ring cavity 18 is threadedly connected to the bottom surface of the outer cylinder 102. A plurality of arc-shaped dust removal ports 1031 are provided on the annular bottom plate 103 at equal intervals along the circumferential direction, and the dust suction cavity is connected with the inner cavity of the dust collecting ring cavity 18 through the dust removal ports 1031. A closed partition 19 is slidably arranged on the top surface of the annular bottom plate 103. The closed partition 19 includes a closed ring 191 and a closed arc plate 192. The closed ring 191 is rotatably sleeved on the outer ring wall of the screen 21. A number of closed arc plates 192 are fixedly connected to the outer ring wall of the closed ring 191 at equal intervals. The several closed arc plates 192 are arranged one by one corresponding to the several dust outlets 1031. When the closed partition 19 is rotated to a certain angle, the closed arc plate 192 covers the dust outlets 1031. A first magnet 20 is fixedly connected to the top surface of the closed partition 19. A sliding arc groove 27 corresponding to the height of the first magnet is opened along the circumferential direction on the outer ring wall of the outer cylinder 102. A second magnet 26 is slidably arranged in the sliding arc groove 27. The first magnet 20 and the second magnet 26 are arranged correspondingly.

[0041] Reference Figure 4The bottom surface of the dust collecting ring cavity 18 is provided with a dust outlet opening 181, and a dust outlet bottom plate 182 for blocking the dust outlet opening 181 is slidably connected to the bottom surface of the dust collecting ring cavity 18. Two guide arc strips 183 are fixedly connected to the bottom surface of the dust collecting ring cavity 18, and the dust outlet bottom plate 182 is slidably connected between the two guide arc strips 183.

[0042] Reference Figure 1-3 When loading the ton bag, the operator opens the door 31 of the dustproof box 3, extends the feeding bag opening of the ton bag into the dustproof box 3 through the connecting opening 32, and passes the feeding bag opening through the gap between the clamp 8 and the annular airbag 5. The control air source 7 is turned on, and the control air source 7 inflates the annular airbag 5 through the air pipe 6. The volume of the annular airbag 5 continues to increase, and the feeding bag opening is tightly clamped between the clamp 8 and the annular airbag 5. The setting of the annular airbag 5 and the clamp 8 realizes a tight connection of the bag opening, reducing the possibility of powder leakage during the loading process and dust in the external environment falling into the ton bag.

[0043] Reference Figure 1 and Figure 2 After completing the connection between the feed bag opening and the feed pipe 1, close the box door 31, and the material is loaded into the ton bag through the charging cylinder 10 and the feed pipe 1 in turn. When the material passes through the charging cylinder 10, the corona needle 12 discharges to make the dust impurities therein negatively charged. The material passes through the screen 21 and finally falls into the ton bag. At this time, the negative pressure pump 24 is started, and the regulating valve 23 is adjusted to a suitable opening, and the dust removal connecting pipe 22 evacuates the dust suction chamber. Negative pressure is formed in the dust suction chamber, and the small-size dust in the material passes through the screen 21 into the dust suction chamber under the action of negative pressure, and finally enters the dust collecting box 25 through the dust removal connecting pipe 22 for collection. The setting of two dust removal connecting pipes 22 and two negative pressure pumps 24 realizes efficient collection of dust.

[0044] Reference Figure 2 and Figure 5 In the process of collecting dust, dust easily blocks the mesh of the screen 21. At this time, the cleaning motor 43 is started, and the cleaning motor 43 drives the driving gear 44 to rotate. The scraper 41 moves along the circumferential direction in the dust suction chamber under the driving action of the driving gear 44 and the guiding action of the guide ring 15. The rubber scraper 42 scrapes off the dust accumulated on the outer peripheral wall of the screen 21, thereby cleaning the screen 21 and helping to improve the dust collection effect and efficiency.

[0045] Referring to the figure, when the scraper 41 rotates in the dust suction chamber, the friction aluminum block 47 moves with the scraper 41 and rubs against the polytetrafluoroethylene layer 17. The friction between the two generates electricity, and positive charges are generated on the surface of the polytetrafluoroethylene layer 17. The negatively charged dust actively passes through the screen 21 and is adsorbed on the polytetrafluoroethylene layer 17 under the action of electrostatic adsorption, further improving the dust collection effect.

[0046] Reference Figure 4-6 When the scraper 41 stops moving and the negative pressure pump 24 stops operating, the polytetrafluoroethylene layer 17 gradually loses its positive charge, and the dust adsorbed on the polytetrafluoroethylene layer 17 falls under the action of gravity, and falls into the dust collecting ring cavity 18 through the dust outlet 1031 for temporary storage and collection. After a period of collection, the second magnet 26 is moved, and the first magnet drives the closed partition 19 to rotate under the action of magnetic force. Several closed arc plates 192 simultaneously block several dust outlets 1031, thereby separating the dust collecting ring cavity 18 and the dust suction cavity, and reducing the possibility of dust in the dust collecting ring cavity 18 flying back into the dust suction cavity. When it is necessary to collect the dust in the dust collecting ring cavity 18, push the dust outlet bottom plate 182 and pour out the dust in the dust collecting ring cavity 18. Since the screen 21 is detachably connected to the annular top plate 101 and the annular top plate 101 is detachably connected, when the screen 21 needs to be cleaned, the screen 21 can be directly removed from the feed pipe 1 for cleaning.

[0047] Reference Figure 2 and Figure 3 When loading is not required, the two rotating covers 33 are covered on the communicating opening 32 to seal it, thereby reducing the possibility of dust impurities in the external environment entering the dustproof box 3. The first sealing strip 34 and the second sealing strip 35 improve the sealing performance of the dustproof box 3.

[0048] The implementation principle of a fully automatic ton bag packaging machine in the embodiment of the present application is as follows: when loading, the operator opens the box door 31 and connects the feeding bag opening between the clamp 8 and the annular airbag 5. The material is loaded through the charging cylinder 10 and the feeding pipe 1 in turn. When the material passes through the charging cylinder 10, the dust impurities are negatively charged. The negative pressure pump 24 is started, and the dust in the material passes through the screen 21 into the dust suction chamber, and finally enters the dust collecting box 25 for collection.

[0049] In the process of collecting dust, the scraper 41 moves in the dust collection chamber along the circumferential direction, and the rubber scraper strip 42 scrapes off the dust accumulated on the screen 21, thereby cleaning the screen 21. The friction aluminum block 47 moves with the scraper 41 and generates electricity by friction with the polytetrafluoroethylene layer 17, generating positive charges on the surface of the polytetrafluoroethylene layer 17, and the negatively charged dust actively passes through the screen 21 and is adsorbed on the polytetrafluoroethylene layer 17, further improving the dust collection effect.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic ton bag packaging machine, characterized by: The invention comprises a dustproof box (3), a feed pipe (1) and a dust removal assembly (2), wherein one end of the feed pipe (1) passes through the top wall of the dustproof box (3) and extends into the top wall, a box door (31) is rotatably arranged on the side wall of the dustproof box (3), a connecting opening (32) is provided at the bottom end of the dustproof box (3), the feed pipe (1) comprises an outer tube (102), an annular top plate (101) and an annular bottom plate (103), the annular top plate (101) is connected to the top opening of the outer tube (102), the annular bottom plate (103) is connected to the bottom opening of the outer tube (102), and the The dust removal assembly (2) comprises a screen (21), a dust removal connecting pipe (22), a negative pressure pump (24) and a dust collecting box (25); the screen (21) is in the shape of a cylinder with openings at both ends; the screen (21) is coaxially arranged in the feed pipe (1); the top end of the screen (21) is connected to the annular top plate (101); the bottom end of the screen (21) is connected to the annular bottom plate (103); one end of the dust removal connecting pipe (22) is connected to the outer cylinder (102); the other end is connected to the dust collecting box (25); the negative pressure pump (24) is arranged On the dust removal connecting pipe (22), the screen (21), the annular top plate (101), the annular bottom plate (103) and the outer cylinder (102) together form a dust suction chamber, in which a cleaning component (4) is arranged, the cleaning component (4) comprising a scraper (41), the scraper (41) being arranged in the dust suction chamber along the central axis direction of the dust suction chamber, a rubber scraper strip (42) being arranged on a side of the scraper (41) close to the screen (21), the rubber scraper strip (42) being arranged in contact with the outer annular wall of the screen (21), and a A driving member is used to drive the scraper (41) to slide along the outer wall of the screen (21); the top end of the outer cylinder (102) is coaxially connected with a charging cylinder (10); a corona needle (12) is arranged in the charging cylinder (10); a polytetrafluoroethylene layer (17) is arranged on the inner ring wall of the outer cylinder (102); a plurality of connecting rods (46) are horizontally connected to the scraper (41); one end of the connecting rod (46) close to the polytetrafluoroethylene layer (17) is connected to a friction aluminum block (47); and the friction aluminum block (47) is arranged in contact with the polytetrafluoroethylene layer (17).

2. The fully automatic ton bag packaging machine according to claim 1 is characterized in that: An annular airbag (5) is connected to the outer wall of the outer tube (102) along the circumferential direction, an air supply pipe (6) is connected to the annular airbag (5), a control air source (7) is provided at one end of the air supply pipe (6) away from the annular airbag (5), a clamp (8) is provided in the dustproof box (3), the clamp (8) is coaxially arranged outside the annular airbag (5), and a gap is left between the clamp (8) and the annular airbag (5).

3. The fully automatic ton bag packaging machine according to claim 1 is characterized in that: The annular bottom plate (103) is provided with a dust outlet (1031); the bottom end of the outer cylinder (102) is coaxially connected with a dust collecting annular cavity (18) with an opening at the top end; the dust collecting annular cavity (18) is connected to the dust suction cavity through the dust outlet (1031); and the dust collecting annular cavity (18) is detachably connected to the outer cylinder (102).

4. The fully automatic ton bag packaging machine according to claim 3 is characterized in that: The dust outlet (1031) is arc-shaped and is evenly spaced on the annular bottom plate (103). A closed partition (19) is slidably fitted on the top surface of the annular bottom plate (103). The closed partition (19) comprises a closed ring (191) and a plurality of closed arc plates (192) evenly spaced on the outer ring wall of the closed ring (191). The closed ring (191) is rotatably sleeved on the screen (21). A driving member for driving the closed ring (191) to rotate is provided on the outer cylinder (102). When the closed ring (191) rotates to a certain angle, the closed arc plate (192) covers the dust outlet (1031).

5. The fully automatic ton bag packaging machine according to claim 2 is characterized in that: Two semicircular rotating cover plates (33) are rotatably arranged on the bottom surface of the dustproof box (3), and the two rotating cover plates (33) are respectively arranged on two opposite sides of the connecting opening (32). When the two rotating cover plates (33) are rotated to fit with the bottom surface of the dustproof box (3), the two rotating cover plates (33) are assembled into a complete circle and block the connecting opening (32).

6. The fully automatic ton bag packaging machine according to claim 1, characterized in that: The top surface of the annular bottom plate (103) is provided with an inserting ring groove (11) corresponding to the screen (21), a sealing ring (14) is arranged in the inserting ring groove (11), the bottom end of the screen (21) is inserted in the inserting ring groove (11), the outer peripheral wall of the top end of the screen (21) is provided with an external thread, the inner peripheral wall of the annular top plate (101) is provided with an internal thread, and the top end of the screen (21) is threadedly connected to the inner peripheral wall of the annular top plate (101).

Images