A dust collection device for powder feeding

Abstract

This utility model discloses a dust removal device for powder feeding, including a feeding box and a dust collection box, which are connected by a transfer pipe. The feeding box is equipped with a grid inside, and a material bag is located on the grid. A lifting mechanism for lifting the material bag is provided on one side of the material bag, and a first cutter and a second cutter for opening the material bag are provided on the other side of the material bag. In this utility model, after the material bag is completely placed into the feeding box, the two cutters first cut an opening at one end of the material bag, and then the lifting mechanism drives the other end of the material bag to be lifted, so that the opening end of the material bag gradually faces downward, and the powder is released from the material bag, thereby completing the feeding. Since the entire feeding operation is carried out in a closed environment, the leakage of powder into the external environment is avoided, and the collection and utilization rate of powder is improved.

Description

Technical Field

[0001] This utility model relates to the field of material feeding and dust removal, and in particular to a dust removal device for powder feeding. Background Technology

[0002] In the coating production process, coating powder is generally packaged in bags. During production, the bagged powder is fed into a screw feeder. Since the hopper cover is completely lifted before feeding, dust is stirred up during the feeding process, causing pollution to the workshop and the surrounding environment, harming the health of operators, and also leading to material loss and waste.

[0003] Chinese patent CN218251323U discloses a high-efficiency feeding and dust removal device. By setting up a drive component and a filter component, the worker can put the whole bag of dust into the box during feeding. Then, the servo motor drives the cutting blade to cut the bag inside the box, avoiding the problem of a large amount of dust being generated when the worker cuts the bag first and then pours the powder in.

[0004] In the aforementioned patent, after the personnel place the material bag into the box from the high inlet, the blade cuts the material bag inside the box, thereby reducing the amount of dust leakage. However, the opening size of the inlet is fixed, making it difficult to accommodate material bags of various sizes. Furthermore, when the material bag is being fed into the box, the inlet is only sealed by the material bag itself, causing dust to still leak out from the gap between the inlet and the material bag. This results in the problem that the dust generated during powder feeding can easily spread to the surrounding environment and is difficult to collect effectively. Therefore, a dust removal device for powder feeding is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a dust removal device for powder feeding, so as to solve the problem mentioned in the background art that the dust generated when feeding powder is easy to spread to the surrounding environment and is difficult to collect effectively. The technical solution of this utility model provides a solution that is significantly different from the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A dust removal device for powder feeding includes a feeding box and a dust collection box, which are connected by a transfer pipe. The feeding box has a grid composed of multiple steel pipes inside, and a material bag is located on the grid. A lifting mechanism for lifting the material bag is provided on one side of the material bag, and a first cutter and a second cutter for opening the material bag are provided on the other side of the material bag. A first driving mechanism for driving the first cutter and the second cutter to move closer to each other and a second driving mechanism for driving the first cutter and the second cutter to move closer to the material bag simultaneously are provided on one side of the feeding box.

[0008] Preferably, a vacuum pump is installed above the dust collection box, a filter screen is installed inside the dust collection box, a discharge port is installed at the lower end of the dust collection box, and a valve is installed inside the discharge port; a closed door is installed on one side of the feeding box, a fixing plate is installed on the side of the feeding box, and a brush is installed below the fixing plate.

[0009] Preferably, the lifting mechanism includes a limiting plate, an electric telescopic rod, and a hook. A column is provided on one side of the limiting plate, and the limiting plate and the column are connected by a sleeve. The electric telescopic rod is installed on the top of the feeding box, and the piston rod inside the electric telescopic rod is connected to the limiting plate. The hook is connected to the lower end of the limiting plate, passes through the grid, and is located below the grid.

[0010] Preferably, a movable plate is provided above the first cutter, a sliding groove is provided on the upper part of the movable plate, a push plate and a mounting block are respectively provided at both ends of the movable plate, the push plate is located inside the feeding box, and a knife groove is provided on the surface of the push plate, and one end of the first cutter and the second cutter both extend through the knife groove into the inside of the feeding box.

[0011] Preferably, one end of the first cutter and the second cutter are respectively provided with a first slider and a second slider, both of which are located inside the slide groove. The first driving mechanism includes a first lead screw, a first motor, and a first pulley assembly. The first lead screw is located inside the slide groove, and its two ends are respectively provided with a left-hand threaded wall and a right-hand threaded wall. The first slider and the second slider are respectively threadedly adapted to the left-hand threaded wall and the right-hand threaded wall. The first lead screw and the first motor are connected through the first pulley assembly, which includes a driving pulley, a driven pulley, and a belt. The driving pulley and the driven pulley are respectively connected to the first motor and the first lead screw shaft, and the driving pulley and the driven pulley are connected through the belt.

[0012] Preferably, the second drive mechanism includes a second lead screw, a guide column, a horizontal plate, a second pulley assembly, and a second motor. The horizontal plate is located on one side of the movable plate. One end of the guide column is connected to the side of the feeding box, and the other end of the guide column passes through the side of the movable plate and connects to the horizontal plate. The second motor is mounted on the horizontal plate. One end of the second lead screw is connected to the side bearing of the feeding box, and the other end of the second lead screw passes through the mounting block and connects to the bearing of the horizontal plate. The mounting block is threadedly fitted to the second lead screw. The second lead screw and the second motor are connected through the second pulley assembly. The second pulley assembly includes a driving pulley, a driven pulley, and a belt. The driving pulley and the driven pulley are respectively connected to the shafts of the second motor and the second lead screw. The driving pulley and the driven pulley are connected by a belt.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, after the material bag is completely placed inside the feeding box, the sealing door is closed. Then, the second motor drives the movable plate and two cutters to approach the material bag. At this time, the two cutters insert into the material bag, and the push plate at one end of the movable plate pushes the material bag until it is in contact with the limiting plate. Then, the first motor drives the two cutters to approach, causing them to cut an opening at one end of the material bag. Next, the electric telescopic rod drives the limiting plate and the barb to rise. The barb hooks the other end of the material bag. As the barb rises, the opening of the material bag gradually faces downwards, causing the powder inside the bag to detach, thus completing the process. During feeding, the second motor first drives the movable plate and two cutters to reset, and the electric telescopic rod drives the limit plate and barb to reset. At this time, personnel can open the closed door to take out the empty material bag and feed a new material bag again. When the closed door is closed, the vacuum pump starts and continuously sucks the dust generated inside the feeding box into the collection box. When the dust inside the collection box accumulates to a certain level, the valve is opened and the dust accumulation material can be discharged from the outlet. This makes the entire feeding operation take place in a closed environment, thereby avoiding the leakage of powder into the external environment and improving the collection and utilization rate of powder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a dust removal device used for powder feeding;

[0016] Figure 2 This is a schematic diagram of the feeding box in a dust removal device used for powder feeding;

[0017] Figure 3 This is a schematic diagram of the limiting plate in a dust removal device used for powder feeding;

[0018] Figure 4 This is a schematic diagram of the structure of the fixed plate in a dust removal device used for powder feeding;

[0019] Figure 5 This is a schematic diagram of the movable plate in a dust removal device used for powder feeding.

[0020] In the diagram: 1. Feeding box; 101. Enclosed door; 102. Grille; 103. Column; 104. Fixing plate; 2. Dust collection box; 201. Vacuum pump; 202. Discharge port; 203. Valve; 3. Transfer pipe; 4. Material bag; 5. Limiting plate; 501. Electric telescopic rod; 502. Hook; 503. Sleeve; 6. Movable plate; 601. Slide groove; 602. Push plate; 603. Mounting block; 7. First lead screw; 701. First motor; 702. First pulley assembly; 8. First cutter; 801. First slider; 802. Second cutter; 803. Second slider; 9. Second lead screw; 901. Guide post; 902. Horizontal plate; 903. Second pulley assembly; 904. Second motor. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5In this utility model, a dust removal device for powder feeding includes a feeding box 1 and a dust collection box 2, which are connected by a transfer pipe 3. The feeding box 1 is equipped with a grid 102 composed of multiple steel pipes. A material bag 4 is located on the grid 102. A limit plate 5 is provided on one side of the material bag 4, and a first cutter 8 and a second cutter 802 are provided on the other side of the material bag 4. A movable plate 6 is provided on one side of the feeding box 1. A sliding groove 601 is provided on the top of the movable plate 6. A push plate 602 and a mounting block 603 are respectively provided at both ends of the movable plate 6. The push plate 602 is located inside the feeding box 1, and a knife groove is provided on the surface of the push plate 602. One end of the first cutter 8 and the second cutter 802 both extend through the knife groove into the interior of the feeding box 1. A first motor 701 and a second motor 904 are respectively provided above and on one side of the movable plate 6.

[0025] A vacuum pump 201 is installed above the dust collection box 2, a filter screen is installed inside the dust collection box 2, and a discharge port 202 is installed at the lower end of the dust collection box 2. A valve 203 is installed inside the discharge port 202. A closed door 101 is installed on one side of the feeding box 1, a fixing plate 104 is installed on the side of the feeding box 1, and a brush is installed under the fixing plate 104.

[0026] Example 1: Please refer to Figure 1-5 In this embodiment of the utility model, a dust removal device for powder feeding is provided with a column 103 on one side of the limiting plate 5. The limiting plate 5 and the column 103 are connected by a sleeve 503. An electric telescopic rod 501 is installed on the top of the feeding box 1. The piston rod inside the electric telescopic rod 501 is connected to the limiting plate 5. A barb 502 is connected to the lower end of the limiting plate 5. The barb 502 passes through the grid 102 and is located below the grid 102.

[0027] A first slider 801 and a second slider 803 are respectively provided at one end of the first cutter 8 and the second cutter 802. The first slider 801 and the second slider 803 are both located inside the slide groove 601. The first drive mechanism includes a first lead screw 7, a first motor 701 and a first pulley assembly 702. The first lead screw 7 is located inside the slide groove 601. The two ends of the first lead screw 7 are respectively provided with a left-hand threaded wall and a right-hand threaded wall. The first slider 801 and the second slider 803 are respectively threadedly adapted to the left-hand threaded wall and the right-hand threaded wall.

[0028] The first lead screw 7 and the first motor 701 are connected by a first pulley assembly 702. The first pulley assembly 702 includes a driving pulley, a driven pulley, and a belt. The driving pulley and the driven pulley are respectively connected to the shafts of the first motor 701 and the first lead screw 7. The driving pulley and the driven pulley are connected by a belt. After the first motor 701 is started, it drives the first lead screw 7 to rotate through the first pulley assembly 702, so that the first slider 801 and the second slider 803 move closer to each other, thereby bringing the first slider 801 and the second slider 803 closer to each other.

[0029] The horizontal plate 902 is located on one side of the movable plate 6. One end of the guide post 901 is connected to the side of the feeding box 1, and the other end of the guide post 901 passes through the side of the movable plate 6 and is connected to the horizontal plate 902. The second motor 904 is installed on the horizontal plate 902. One end of the second lead screw 9 is connected to the side bearing of the feeding box 1, and the other end of the second lead screw 9 passes through the mounting block 603 and is connected to the bearing of the horizontal plate 902. The mounting block 603 is threadedly adapted to the second lead screw 9.

[0030] The second lead screw 9 is connected to the second motor 904 via the second pulley assembly 903. The second pulley assembly 903 includes a driving pulley, a driven pulley, and a belt. The driving pulley and the driven pulley are respectively connected to the shafts of the second motor 904 and the second lead screw 9. The driving pulley and the driven pulley are connected via a belt. After the second motor 904 is started, it drives the second lead screw 9 to rotate through the second pulley assembly 903, causing the movable plate 6 to move along the guide post 901 toward the inside of the feeding box 1.

[0031] After the personnel completely place the material bag 4 into the feeding box 1, they close the sealing door 101. Then, the second motor 904 drives the first cutter 8 and the second cutter 802 to move towards the material bag 4 simultaneously. At this time, the two cutters insert into the material bag 4, and the push plate 602 at one end of the movable plate 6 pushes the material bag 4 until the material bag 4 is in contact with the limiting plate 5. Then, the first motor 701 drives the two cutters to move closer, so that the two cutters cut an opening at one end of the material bag 4. Then, the electric telescopic rod 501... The limit plate 5 and the barb 502 are raised. The barb 502 hooks the other end of the material bag 4. As the barb 502 rises, the opening end of the material bag 4 gradually faces downward, causing the powder in the material bag 4 to detach from the material bag, thus completing the feeding. Finally, the second motor 904 drives the movable plate 6 and the two cutters to reset. The electric telescopic rod 501 drives the limit plate 5 and the barb 502 to reset. When the movable plate 6 resets, the brush under the fixed plate 104 sweeps off the residual powder on the movable plate 6.

[0032] After the reset is completed, personnel can open the closed door 101 to take out the empty material bag 4 and feed a new material bag 4 again. When the closed door 101 is closed, the vacuum pump 201 starts and continuously sucks the dust generated inside the feeding box 1 into the dust collection box 2. When the dust inside the dust collection box 2 accumulates to a certain extent, the valve 203 is opened and the accumulated dust can be discharged from the discharge port 202. This makes the entire feeding operation take place in a closed environment, thereby avoiding the leakage of powder into the external environment and improving the collection and utilization rate of powder.

[0033] Meanwhile, since the material bag 4 is first pushed by the push plate 602 to fit with the limiting plate 5 when it is inside the feeding box 1, and then lifted by the hook 502, it can meet the feeding operation of most sizes of material bags 4, thus improving its applicability.

[0034] The working principle of this utility model is as follows: After the material bag 4 is completely inside the feeding box 1 and the sealing door 101 is closed, the second motor 904 first drives the push plate 602 at one end of the movable plate 6 to push the material bag 4 until the material bag 4 is in contact with the limiting plate 5. Then, the first motor 701 drives two cutters to cut an opening at one end of the material bag 4. Then, the electric telescopic rod 501 drives the limiting plate 5 and the barb 502 to rise. The barb 502 hooks the other end of the material bag 4. As the barb 502 rises, the opening end of the material bag 4 gradually faces downward, allowing the powder in the material bag 4 to flow out. The material is released from the bag, thus completing the feeding process. Finally, personnel can open the closed door 101 to remove the empty bag 4 and feed a new bag 4. When the closed door 101 is closed, the vacuum pump 201 starts and continuously sucks the dust generated inside the feeding box 1 into the dust collection box 2. When the dust inside the dust collection box 2 accumulates to a certain level, the valve 203 is opened, and the accumulated dust can be discharged from the discharge port 202. This ensures that the entire feeding operation is carried out in a closed environment, thereby preventing the powder from leaking into the external environment and improving the collection and utilization rate of the powder.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0036] 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 dust removal device for powder feeding, comprising a feeding box (1) and a dust collection box (2), wherein the feeding box (1) and the dust collection box (2) are connected by a connecting pipe (3), characterized in that: The inside of the feeding box (1) is provided with a grid (102) composed of multiple steel pipes. The material bag (4) is located on the grid (102). A lifting mechanism for lifting the material bag (4) is provided on one side of the material bag (4). A first cutter (8) and a second cutter (802) for opening the material bag (4) are provided on the other side of the material bag (4). A first driving mechanism for driving the first cutter (8) and the second cutter (802) to move closer to each other is provided on one side of the feeding box (1), and a second driving mechanism for driving the first cutter (8) and the second cutter (802) to move closer to the material bag (4) at the same time.

2. The dust removal device for powder feeding according to claim 1, characterized in that: A vacuum pump (201) is installed above the dust collection box (2), a filter screen is installed inside the dust collection box (2), a discharge port (202) is installed at the lower end of the dust collection box (2), and a valve (203) is installed inside the discharge port (202); a closed door (101) is installed on one side of the feeding box (1), a fixing plate (104) is installed on the side of the feeding box (1), and a brush is installed below the fixing plate (104).

3. The dust removal device for powder feeding according to claim 1, characterized in that: The lifting mechanism includes a limiting plate (5), an electric telescopic rod (501), and a barb (502). A column (103) is provided on one side of the limiting plate (5). The limiting plate (5) and the column (103) are connected by a sleeve (503). The electric telescopic rod (501) is installed on the top of the feeding box (1). The piston rod inside the electric telescopic rod (501) is connected to the limiting plate (5). The barb (502) is connected to the lower end of the limiting plate (5). The barb (502) passes through the grid (102) and is located below the grid (102).

4. A dust removal device for powder feeding according to claim 1, characterized in that: A movable plate (6) is provided above the first cutter (8), and a sliding groove (601) is provided on the upper part of the movable plate (6). A push plate (602) and a mounting block (603) are respectively provided at both ends of the movable plate (6). The push plate (602) is located inside the feeding box (1). A knife groove is provided on the surface of the push plate (602). One end of the first cutter (8) and the second cutter (802) both extend through the knife groove into the inside of the feeding box (1).

5. A dust removal device for powder feeding according to claim 1, characterized in that: The first cutter (8) and the second cutter (802) are respectively provided with a first slider (801) and a second slider (803) at one end. The first slider (801) and the second slider (803) are both located inside the slide groove (601). The first drive mechanism includes a first lead screw (7), a first motor (701) and a first pulley assembly (702). The first lead screw (7) is located inside the slide groove (601). The two ends of the first lead screw (7) are respectively provided with a left-hand threaded wall and a right-hand threaded wall. The first slider (801) and the second slider (803) are respectively threadedly adapted to the left-hand threaded wall and the right-hand threaded wall. The first lead screw (7) and the first motor (701) are connected by the first pulley assembly (702). The first pulley assembly (702) includes a driving pulley, a driven pulley and a belt. The driving pulley and the driven pulley are respectively connected to the shafts of the first motor (701) and the first lead screw (7). The driving pulley and the driven pulley are connected by the belt.

6. A dust removal device for powder feeding according to claim 1, characterized in that: The second drive mechanism includes a second lead screw (9), a guide column (901), a horizontal plate (902), a second pulley assembly (903), and a second motor (904). The horizontal plate (902) is located on one side of the movable plate (6). One end of the guide column (901) is connected to the side of the feeding box (1), and the other end of the guide column (901) passes through the side of the movable plate (6) and is connected to the horizontal plate (902). The second motor (904) is mounted on the horizontal plate (902). One end of the second lead screw (9) is connected to the side bearing of the feeding box (1), and the other end of the second lead screw (9) passes through the mounting block (603) and is connected to the bearing of the horizontal plate (902). The mounting block (603) is threadedly adapted to the second lead screw (9). The second lead screw (9) is connected to the second motor (904) through the second pulley assembly (903). The second pulley assembly (903) includes a driving pulley, a driven pulley and a belt. The driving pulley and the driven pulley are respectively connected to the shafts of the second motor (904) and the second lead screw (9). The driving pulley and the driven pulley are connected by a belt.

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