Cement packaging machine with dustproof device

Abstract

The invention relates to the technical field of cement production equipment, in particular to a cement packaging machine with a dustproof device. The cement packaging machine comprises a cement packaging machine body and the dustproof device, an ash outlet is formed in the front side of the cement packaging machine body, the dustproof device is arranged on the front side of the cement packaging machine body, and the ash outlet is located in the dustproof device. The dustproof device comprises an outer shell, a dust suction hood, an elastic supporting assembly and a packaging bag dust removal assembly. Through cooperation of the packaging bag dust removal assembly and the elastic supporting assembly, dust attached to the outer surface of the cement bag can be effectively swept, compared with an existing technology only depending on a dust hood, an active sweeping link aiming at the dust on the surface of the cement bag is newly added in the scheme, and the dustproof effect is more comprehensive.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement production equipment, in particular to a cement packaging machine with a dustproof device. BACKGROUND

[0002] Cement is a kind of powdery inorganic cementitious material that will harden after mixing with water, and is usually not used alone, but needs to be combined with sand and gravel to form mortar or concrete. In the cement production process, the cement packaging machine is a special equipment necessary for bagged cement production, and its core function is to complete the automatic packaging of cement, and it can also be used for packaging fly ash, cement additives and other powdery materials with good flow performance, so it is widely used in small and medium-sized cement plants.

[0003] A large amount of dust will be generated during the cement packaging process, resulting in the scattering of cement dust around the packaging machine. These dusts will seriously affect the health of the workers. To solve this problem, the existing technology usually adopts the way of connecting the dust hood with the negative pressure equipment to suck the cement dust scattered at the discharge port.

[0004] Although the dust hood can suck part of the dust scattered in the air, a large amount of cement dust will still adhere to the outer surface of the cement bag and be difficult to be sucked away. When the workers move the bag filled with cement, the dust on the surface of the bag will again scatter in the air and be easily inhaled by the workers, still posing a threat to their health. The existing dustproof scheme cannot fundamentally solve the health hazards caused by the dust remaining on the surface of the cement bag.

[0005] Therefore, we propose a cement packaging machine with a dustproof device. SUMMARY

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a cement packaging machine with a dustproof device.

[0007] The technical scheme adopted by the present application is as follows: the present application is a cement packaging machine with a dustproof device, which comprises a cement packaging machine body and a dustproof device. The front side of the cement packaging machine body is provided with a cement discharge port. The dustproof device is arranged on the front side of the cement packaging machine body, and the cement discharge port is located in the dustproof device. The dustproof device comprises an outer shell, a dust hood, an elastic support assembly and a packaging bag dust removal assembly. The outer shell is fixedly arranged on the front side of the cement packaging machine body. The dust hood is located on the upper side of the inner part of the outer shell. The cement discharge port penetrates through the side wall of the outer shell and the side wall of the dust hood and extends into the dust hood. The elastic support assembly is fixedly arranged in the outer shell and located below the dust hood. The packaging bag dust removal assembly is arranged above the elastic support assembly and located on the left and right sides of the cement discharge port.

[0008] Further, the elastic supporting assembly comprises a fixed frame, telescopic springs and a supporting frame, the fixed frame is in n shape, and the bottom thereof is horizontally fixed to the inner bottom side of the outer shell body through a supporting column, the telescopic springs are fixedly arranged on the two sides of the top of the fixed frame, and the bottom ends thereof are fixed to the fixed frame, and the supporting frame is horizontally fixed to the top of the telescopic springs.

[0009] Further, the bag dust cleaning assembly is arranged on the two sides of the top of the supporting frame, and comprises a vertical plate, a horizontal rod, a cleaning plate and a driving unit, the vertical plate is fixedly arranged on the front side of the top of the supporting frame, the horizontal rod is vertically fixedly arranged on the vertical plate, the cleaning plate is slidably sleeved on the horizontal rod, a brush is arranged on one side wall of the cleaning plate, the driving unit is arranged on the top of the supporting frame and connected with the cleaning plate, a spring one is slidably sleeved on the horizontal rod and abuts between the cleaning plate and the vertical plate.

[0010] Further, the driving unit comprises a rotating shaft, a bearing seat, a rope winding wheel, a gear and a rack, the bearing seat is fixedly arranged on the top of the supporting frame, the rotating shaft is rotatably arranged on the bearing seat, the rope winding wheel is fixedly arranged on one end of the rotating shaft and located between the vertical plate and the cleaning plate, a pull rope is wound on the rope winding wheel, one end of the pull rope is fixedly connected with the cleaning plate, the gear is fixedly arranged on the other end of the rotating shaft, and the rack is fixedly arranged on the inner wall of the outer shell body, and the gear is engaged with the rack.

[0011] Further, a ball is arranged on the end face of the end of the horizontal rod away from the vertical plate, and the ball is in rolling contact with the inner wall of the rear side of the outer shell body.

[0012] Further, a spring two is also slidably sleeved on the horizontal rod, and one end of the spring two is in contact with the inner wall of the rear side of the outer shell body.

[0013] Further, the dust collecting cover comprises a conical cover and a square cover which are in communication with each other, the square cover is connected below the conical cover, the dust outlet is located in the square cover, the top end of the cleaning plate is movably inserted into the square cover, and the conical cover penetrates through the top rear of the outer shell body and is connected with an external negative pressure equipment.

[0014] Further, a mounting frame is fixedly arranged on the rear inner wall of the square cover and located above the dust outlet, a gas cylinder is fixedly arranged on the mounting frame, a clamping block is fixedly arranged on the output end of the gas cylinder, and the clamping block is in contact with the dust outlet when moving downward.

[0015] Further, an installation opening is vertically arranged in the middle of the supporting frame, and supporting cross rods are arranged in the installation opening.

[0016] Further, the bottom of the outer shell is provided with a cuboid discharge port, a cuboid material receiving box is sleeved on the cuboid discharge port, a hand screw is threadedly connected to the front side wall of the cuboid material receiving box, and a circular hole is formed in the front side wall of the cuboid discharge port for inserting the end of the hand screw.

[0017] The application has the following beneficial effects by adopting the above structure: 1. The cooperation of the packaging bag dust cleaning assembly and the elastic supporting assembly can effectively clean the dust attached to the outer surface of the cement bag. When the cement bag is filled with cement, the bristles in the dust cleaning assembly can sweep from both sides of the cement bag to scatter the residual dust on the bag surface into the air. Subsequently, these dusts are sucked into and discharged from the dust suction cover together with the dusts scattered during the packaging process, greatly reducing the amount of dust spread when the staff moves the cement bag, reducing the harm of dust to the respiratory system of the staff from the source, and ensuring the health of the staff. Compared with the existing technology which only relies on the dust suction cover, the present application adds an active cleaning link for the dust on the surface of the cement bag, and the dustproof effect is more comprehensive.

[0018] 2. The elastic supporting assembly can convert the gravity generated during the weight increase of the cement bag into power. When the cement in the cement bag gradually increases, the gravity drives the supporting frame to move downward, thereby driving the gear, rotating shaft, rope winding wheel and other components of the packaging bag dust cleaning assembly to operate, realizing the movement of the cleaning plate. When the cement bag is filled, the gear is separated from the rack, and under the action of the spring rebound force, the cleaning plate automatically drives the bristles to complete the dust cleaning action. When the staff removes the cement bag, the supporting frame is reset under the action of the rebound of the extension spring, simultaneously driving the dust cleaning assembly to automatically restore to the initial state, preparing for the next dust cleaning work of the cement packaging. The whole process does not require additional manual operation, realizes the automation of dust cleaning and resetting, reduces the cost of manual intervention, and improves the packaging operation efficiency. DETAILED DESCRIPTION

[0019] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application. In the drawings: Figure 1 It is a schematic diagram of the three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the three-dimensional structure of the dustproof device in the present application; Figure 3 It is a schematic diagram of the three-dimensional structure of the dustproof device in the present application after removing the outer shell; Figure 4 It is a schematic diagram of the three-dimensional structure of the dustproof device in the present application from another perspective after removing the outer shell; Figure 5It is a perspective structural schematic view of the elastic support assembly in the application; Figure 6 It is a perspective structural schematic view of the elastic support assembly in the application; Figure 7 It is a perspective structural schematic view of the elastic support assembly in the application; Figure 8 It is a perspective structural schematic view of the dust cover in the application; Figure 9 It is a perspective structural schematic view of the dust cover in the application; Figure 10 It is Figure 7 the enlarged view of A in the application.

[0020] 1, cement packaging machine body, 2, dustproof device, 3, ash outlet, 4, outer shell, 5, dust cover, 6, elastic support assembly, 7, packaging bag ash cleaning assembly, 8, cuboid discharge port, 9, cuboid receiving box, 10, hand screw, 11, open port, 12, avoidance port, 61, fixing frame, 62, extension spring, 63, support frame, 64, support column, 65, mounting port, 66, support cross rod, 71, vertical plate, 72, horizontal rod, 73, cleaning plate, 74, driving unit, 75, bristle, 76, spring one, 77, spring two, 78, ball bearing, 741, rotating shaft, 742, bearing seat, 743, rope winding wheel, 744, gear, 745, rack, 746, pull rope, 51, conical cover, 52, square cover, 53, mounting frame, 54, air cylinder, 55, clamping block. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0022] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

[0023] As Figures 1-10As shown, the cement packaging machine with dustproof device of the present application comprises a cement packaging machine body 1 and a dustproof device 2, the front side of the cement packaging machine body 1 is provided with a cement outlet 3, the dustproof device 2 is arranged on the front side of the cement packaging machine body 1, and the cement outlet 3 is located in the dustproof device 2, the dustproof device 2 comprises an outer shell 4, a dust cover 5, an elastic support assembly 6 and a packaging bag dust cleaning assembly 7, the outer shell 4 is fixedly arranged on the front side of the cement packaging machine body 1, the dust cover 5 is located on the upper side inside the outer shell 4, the cement outlet 3 penetrates through the side wall of the outer shell 4 and the side wall of the dust cover 5 and then extends into the dust cover 5, the elastic support assembly 6 is fixedly arranged in the outer shell 4 and located below the dust cover 5, and the packaging bag dust cleaning assembly 7 is arranged above the elastic support assembly 6 and located on the left and right sides of the cement outlet 3.

[0024] Working principle: through the packaging bag dust cleaning assembly 7 arranged, the cement dust on the cement bag can be cleaned, so that the cement dust adhered to the cement bag is diffused in the outer shell 4, and then is sucked away by the external negative pressure equipment through the dust cover 5, which greatly reduces the diffusion amount of the cement dust when the workers move the cement bag and reduces the influence of the cement dust on the health of the workers.

[0025] As shown in the figure, Figures 1-10 the elastic support assembly 6 comprises a fixed frame 61, a telescopic spring 62 and a support frame 63, the fixed frame 61 is in the shape of n, the bottom thereof is horizontally fixedly connected to the bottom side inside the outer shell 4 through a support column 64, the telescopic spring 62 is fixedly arranged on the top of the fixed frame 61 on both sides, the bottom end thereof is fixedly connected with the fixed frame 61, and the support frame 63 is horizontally fixedly connected to the top of the telescopic spring 62, and the upper part of the support frame 63 is connected with the packaging bag dust cleaning assembly 6.

[0026] Working principle of the elastic support assembly 6: through the elastic support assembly 6 arranged, the weight of the cement bag on the support frame 63 can be converted into the power source for the downward movement of the support frame 63, and the support frame 63 is driven to press the telescopic spring 62.

[0027] As shown in the figure, Figures 1-10 the packaging bag dust cleaning assembly 7 is arranged on the top of the support frame 63 on both sides, the packaging bag dust cleaning assembly 7 comprises a vertical plate 71, a horizontal rod 72, a cleaning plate 73 and a driving unit 74, the vertical plate 71 is fixedly arranged on the top of the support frame 63 on the front side, the horizontal rod 72 is fixedly arranged on the vertical plate 71, the cleaning plate 73 is slidingly sleeved on the horizontal rod 72, a brush 75 is arranged on one side wall of the cleaning plate 73, the driving unit 74 is arranged on the top of the support frame 63 and connected with the cleaning plate 73, a spring 76 is slidingly sleeved on the horizontal rod 72, and the spring 76 abuts between the cleaning plate 73 and the vertical plate 71.

[0028] As shown in the figure, Figures 1-10As shown, the driving unit 74 includes a rotating shaft 741, a bearing seat 742, a rope winding wheel 743, a gear 744 and a rack 745, the bearing seat 742 is fixedly arranged on the top of the support frame 63, the rotating shaft 741 is rotatably arranged on the bearing seat 742, the rope winding wheel 743 is fixedly arranged on one end of the rotating shaft 741 and is located between the vertical plate 71 and the cleaning plate 73, the rope winding wheel 743 is wound with a pull rope 746, one end of the pull rope 746 is fixedly connected with the cleaning plate 73, the gear 744 is fixedly arranged on the other end of the rotating shaft 741, and the rack 745 is fixedly arranged on the inner wall of the outer shell 4, and the gear 744 is engaged with the rack 745.

[0029] The working principle of the dust cleaning assembly 7 cooperating with the elastic support assembly 6 is as follows: when the cement in the cement bag gradually increases, the support frame 63 is driven to move downward under the action of gravity, the extension spring 62 is compressed, the support frame 63 is driven to move downward, the gear 744 is synchronously driven to move downward, the gear 744 is rolled on the rack 745, the rotating shaft 741 is driven to rotate, the rope winding wheel 743 is driven to rotate, the pull rope 746 is wound on the rope winding wheel 743, the cleaning plate 73 is driven to move close to the vertical plate 71 and press the spring one 76, when the cement in the cement bag is transported to a certain amount, the cement packaging machine stops conveying, the cement bag is filled with cement, the volume of the cement bag is expanded and becomes larger, so that the two sides of the brush 75 can be contacted, when the cement bag is filled, the support frame 63 is moved to the lowest position, and the gear 744 is separated from the rack 745 at this time, the cleaning plate 73 is driven to move to the rear side under the action of the spring one 76, the pull rope 746 is released by the rope winding wheel 743, and the brush 75 is driven to move from the two sides of the cement bag, until the pull rope 746 is in a tense state, so that the cement dust which is not sucked on the surface of the cement bag can be scattered in the air.

[0030] As shown in the figure, Figures 1-10 The end face of the horizontal rod 72 away from the vertical plate 71 is provided with a ball 78, and the ball 78 is in rolling contact with the inner wall of the rear side of the outer shell 4.

[0031] When the horizontal rod 72 moves with the support frame 63, the ball 78 can reduce the friction between the horizontal rod 72 and the outer shell 4.

[0032] As shown in the figure, Figures 1-10 The horizontal rod 72 is further sleeved with a spring two 77, and one end of the spring two 77 is in contact with the inner wall of the rear side of the outer shell 4.

[0033] When the cleaning plate 73 moves to the rear side, the spring two 77 can prevent the cleaning plate 73 from being in rigid contact with the inner wall of the rear side of the outer shell 4, and the impact between the cleaning plate 73 and the spring two 77 can cause the cleaning plate 73 to vibrate, so that the brush 75 vibrates, which is beneficial to the dust on the brush 75 to be dispersed in the air.

[0034] As Figures 1-10 shown, the dust cover 5 includes a conical cover 51 and a square cover 52 which are in communication with each other, the square cover 52 is connected below the conical cover 51, the ash outlet 3 is located in the square cover 52, the top end of the cleaning plate 73 is movably inserted into the square cover 52, the conical cover 51 penetrates through the top of the outer shell 4 and is connected with an external negative pressure device, through the connection of the negative pressure device and the dust cover 5, negative pressure can be formed in the dust cover 5, so that the cement dust at the ash outlet 3 is sucked away, and the cement dust diffused in the outer shell 4 is also sucked away.

[0035] As Figures 1-10 shown, the mounting bracket 53 is fixedly arranged on the inner wall of the rear side of the square cover 52, and the mounting bracket 53 is located above the ash outlet 3, the air cylinder 54 is fixedly arranged on the mounting bracket 53, the clamping block 55 is fixedly arranged on the output end of the air cylinder 54, the clamping block 55 is in contact with the ash outlet 3 when it moves downward, and the air cylinder 54 controls the upward and downward movement of the clamping block 55, so as to fix and release the cement bag sleeved on the ash outlet 3, which facilitates the loading and unloading of the cement bag (valve bag) on the ash outlet 3.

[0036] As Figures 1-10 shown, the mounting hole 65 penetrates through the middle of the support bracket 63, and the support cross bars 66 are distributed in the mounting hole 65, the mounting hole 65 is arranged, and the support cross bars 66 are used for supporting the cement bag, and the gap between the support cross bars 66 facilitates the passage of scattered cement dust.

[0037] As Figures 1-10 shown, the outer shell 4 is provided with a cuboid discharge port 8 at the bottom, the cuboid discharge port 8 is sleeved with a cuboid receiving box 9, the front side wall of the cuboid receiving box 9 is threadedly connected with a hand screw 10, and a circular hole is formed in the front side wall of the cuboid discharge port 8 for inserting the end of the hand screw 10, through the cuboid receiving box 9, the cement falling on the bottom of the outer shell 4 can be collected, and through the hand screw 10, the cuboid receiving box 9 can be conveniently disassembled, and the cement dust scattered on the bottom of the outer shell 4 can be collected; an open port 11 is formed in the front side of the outer shell 4, and an avoiding port 12 is formed in the front side of the square cover 52, the open port 11 is used for facilitating the entry and exit of the cement bag into the outer shell 4, and the avoiding port 12 is used for facilitating the entry and exit of the cement bag into the square cover 52.

[0038] In specific use, first, the bag opening of the cement bag (valve bag) to be filled with cement is sleeved on the ash outlet 3, and the air cylinder 54 is started to extend, driving the clamping block 55 to move downward to fix the bag opening of the cement bag on the ash outlet 3. At this time, the cement bag is located on the support cross rod 66 of the support frame 63. Then the cement packaging machine body 1 works to deliver the cement into the cement bag through the ash outlet 3. The working principle of the cement packaging machine to deliver the cement is the prior art, which is not described here. When the staff removes the cement bag from the support frame 63, the support frame 63 is reset to the high position under the rebounding action of the telescopic spring 62. When the support frame 63 is reset upward, the gear 744 is engaged with the rack 745 again, driving the rotating shaft 741 to rotate, and then driving the winding rope wheel 743 to wind the pull rope 746, and then driving the cleaning plate 73 to move close to one side of the vertical plate 71 and press the spring one 76. When the support frame 63 is reset to the highest position, the gear 744 is disengaged from the rack 745 at this time. Under the rebounding force of the spring one 76, the cleaning plate 73 moves to the rear side, and the winding rope wheel 743 releases the pull rope 746 until the pull rope 746 is in a taut state, and then the cement dust on the surface of the cement bag that is not sucked away is scattered in the air, so that it is sucked away by the external negative pressure equipment through the dust cover 5, greatly reducing the diffusion amount of the cement dust when the staff moves the cement bag, and reducing the influence of the cement dust on the health of the staff.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cement packing machine having a dust prevention device, characterized by: The cement packaging machine body (1) is provided with a cement outlet (3) on the front side, and the dustproof device (2) is arranged on the front side of the cement packaging machine body (1), and the cement outlet (3) is located in the dustproof device (2). The dustproof device (2) comprises an outer shell (4), a dust cover (5), an elastic support assembly (6) and a packaging bag dust removal assembly (7). The outer shell (4) is fixedly arranged on the front side of the cement packaging machine body (1). The dust cover (5) is located on the upper side of the inner part of the outer shell (4). The cement outlet (3) penetrates through the side wall of the outer shell (4) and the side wall of the dust cover (5) and then extends into the dust cover (5). The elastic support assembly (6) is fixedly arranged in the outer shell (4) and located below the dust cover (5). The packaging bag dust removal assembly (7) is arranged above the elastic support assembly (6) and located on the left and right sides of the cement outlet (3).

2. A cement packing machine having a dust-proofing device according to claim 1, characterized in that: The elastic support assembly (6) comprises a fixed frame (61), a telescopic spring (62) and a support frame (63). The fixed frame (61) is in the shape of n, and the bottom thereof is horizontally fixedly connected to the inner bottom side of the outer shell (4) through a support column (64). The telescopic spring (62) is fixedly arranged on the top of the fixed frame (61) on both sides, and the bottom end thereof is fixedly connected to the fixed frame (61). The support frame (63) is horizontally fixedly connected to the top of the telescopic spring (62).

3. A cement packaging machine with dust protection according to claim 2, characterized in that: The packaging bag dust removal assembly (7) is arranged on the top of the support frame (63) on both sides. The packaging bag dust removal assembly (7) comprises a vertical plate (71), a horizontal rod (72), a cleaning plate (73) and a driving unit (74). The vertical plate (71) is fixedly arranged on the top of the support frame (63) on the front side. The horizontal rod (72) is fixedly arranged on the vertical plate (71) vertically. The cleaning plate (73) is slidably sleeved on the horizontal rod (72). A brush (75) is arranged on one side wall of the cleaning plate (73). The driving unit (74) is arranged on the top of the support frame (63) and connected with the cleaning plate (73). A spring (76) is slidably sleeved on the horizontal rod (72) and abuts between the cleaning plate (73) and the vertical plate (71).

4. A cement packaging machine with dust protection according to claim 3, characterized in that: The driving unit (74) comprises a rotating shaft (741), a bearing seat (742), a rope winding wheel (743), a gear (744) and a rack (745). The bearing seat (742) is fixedly arranged on the top of the support frame (63). The rotating shaft (741) is rotatably arranged on the bearing seat (742). The rope winding wheel (743) is fixedly arranged on one end of the rotating shaft (741) and located between the vertical plate (71) and the cleaning plate (73). A pull rope (746) is wound on the rope winding wheel (743). One end of the pull rope (746) is fixedly connected to the cleaning plate (73). The gear (744) is fixedly arranged on the other end of the rotating shaft (741). The rack (745) is fixedly arranged on the inner wall of the outer shell (4). The gear (744) is engaged with the rack (745).

5. A cement packaging machine with dust protection according to claim 4, characterized in that: The horizontal rod (72) is provided with a ball (78) on the end face away from the vertical plate (71), and the ball (78) is in rolling contact with the inner wall of the rear side of the outer shell (4).

6. A cement packaging machine with dust protection according to claim 5, characterized in that: The horizontal rod (72) is further sleeved with a spring (77) which is in contact with the inner wall of the rear side of the outer shell (4) at one end.

7. A cement packaging machine with dust protection according to claim 6, characterized in that: The dust collecting cover (5) comprises a conical cover (51) and a square cover (52) which are in communication with each other, the square cover (52) is connected below the conical cover (51), the ash outlet (3) is located in the square cover (52), the top end of the cleaning plate (73) is movably inserted into the square cover (52), and the conical cover (51) is connected with external negative pressure equipment through the top of the outer shell (4).

8. A cement packaging machine with dust protection according to claim 7, characterized in that: The rear side of the square cover (52) is fixedly provided with a mounting bracket (53) which is located above the ash outlet (3), the mounting bracket (53) is fixedly provided with a cylinder (54), the output end of the cylinder (54) is fixedly provided with a clamping block (55), and the clamping block (55) is in contact with the ash outlet (3) when it moves downward.

9. A cement packaging machine with dust protection according to claim 8, characterized in that: The supporting frame (63) is provided with an installation opening (65) which penetrates the middle part of the supporting frame (63) from top to bottom, and the installation opening (65) is distributed with a supporting cross rod (66).

10. A cement packaging machine with dust protection according to claim 9, characterized in that: The bottom of the outer shell (4) is provided with a cuboid discharge port (8), the cuboid discharge port (8) is sleeved with a cuboid receiving box (9), the front side wall of the cuboid receiving box (9) is threadedly connected with a hand screw (10), and the front side wall of the cuboid discharge port (8) is provided with a circular hole for inserting the end of the hand screw (10); the front side of the outer shell (4) is provided with an opening (11), and the front side of the square cover (52) is provided with an avoiding opening (12).

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