A material feeding device for a mixer

Abstract

The utility model belongs to material feeding device technical field discloses a material feeding device of mixer, including inlet hopper, spiral feeder, dust cover, first dust conveying main pipe, second dust conveying main pipe, dust extraction pipe, filter cartridge dust collector and charging trolley. The utility model discloses a dust removal system that is composed of first dust conveying main pipe, second dust conveying main pipe, dust extraction pipe, dust extraction hose and filter cartridge dust collector, can convey the raw material dust generated in dust cover to filter cartridge dust collector, filters and collects raw material dust through filter cartridge dust collector, can realize the effective treatment of raw material dust, prevents raw material dust from being discharged into raw material workshop, and further harms the health of production personnel. By setting charging trolley below the dust falling port of filter cartridge dust collector, the filtered and collected raw material dust can fall into the charging trolley, which facilitates the recycling of raw material dust, and avoids the waste of raw material caused by the dispersion of raw material dust into the raw material workshop.

Description

Technical Field

[0001] This utility model relates to the field of feeding device technology, and in particular to a feeding device for a mixing machine. Background Technology

[0002] In the production of PVC foamed boards, a mixer is first used to uniformly mix PVC resin powder and other auxiliary materials before feeding the mixed raw materials into an extruder for production. Before mixing, a feeding device is needed to transport the raw materials into the mixer. Chinese patent document CN206492463U discloses a feeding device for a mixer, including a main unit base, a feeding hopper, and a screw conveyor. This feeding device has advantages such as high feeding efficiency and adjustable hopper height. However, feeding materials into the hopper generates a large amount of raw material dust, which not only harms the health of production personnel but also makes material collection difficult, resulting in material waste. Utility Model Content

[0003] The purpose of this utility model is to provide a feeding device for a mixer, which aims to solve the problem that the feeding device of the mixer does not have dust prevention and raw material recycling functions.

[0004] A feeding device for a mixing machine includes a hopper and a screw feeder; the feed pipe of the screw feeder is connected to the bottom of the hopper; it also includes a dust cover, a first dust conveying main pipe, a second dust conveying main pipe, a dust extraction pipe, a cartridge dust collector, and a loading trolley; the dust cover is fixedly installed above the hopper; the two ends of the second dust conveying main pipe are respectively connected to the air inlet of the cartridge dust collector and the first dust conveying main pipe; the dust extraction pipe is connected to the first dust conveying main pipe, and the lower end of the dust extraction pipe is fitted with a dust extraction hose connected to the top of the dust cover; the loading trolley is located below the dust outlet of the cartridge dust collector. Optionally, at least two dust extraction pipes are provided, and the dust extraction pipes are connected to electric air valves.

[0005] Optionally, the dust cover has a feeding port on its front side, and the feeding port is inclined downward; a support plate is horizontally fixed on the front top of the feeding hopper; and baffle bars are horizontally provided on the left and right sides of the top of the support plate.

[0006] Optionally, the cartridge dust collector includes a housing, a hopper located below the housing and communicating with the interior of the housing, a filter cartridge mounted inside the housing, an air jet pipe fixed inside the housing and located above the filter cartridge, a pulse valve connected to the air jet pipe, and an induced draft fan located on the side wall of the housing; the top or side of the housing is provided with an air outlet; the air outlet is located above the filter cartridge.

[0007] Optionally, the dust collection port of the cartridge dust collector is provided with a horizontal insert plate assembly; a baffle plate is horizontally inserted inside the insert plate assembly.

[0008] Optionally, the insert plate assembly includes an upper baffle horizontally disposed at the dust inlet of the cartridge dust collector and two support plates horizontally fixed to the bottom of the upper baffle; the bottom of the upper baffle forms an upward-opening U-shaped groove; the baffle plate is movably inserted into the U-shaped groove, and the baffle plate is supported by the top of the two support plates.

[0009] Optionally, the upper baffle has a blocking part that is vertically downward on the rear side; and the baffle has a push plate that is vertically upward on the front side.

[0010] Optionally, a mounting plate is vertically provided on the side of the support plate away from the baffle plate; a first oblong hole is provided on the mounting plate along the length of the mounting plate, and a second oblong hole is provided on the mounting plate along the vertical direction; a first screw is movably installed in the first oblong hole; a second screw is movably installed in the second oblong hole; both the first screw and the second screw are perpendicular to the mounting plate; a swing plate is provided on the outer side of the mounting plate; both the first screw and the second screw are fixedly installed on the swing plate; a top frame is provided on the inner side of the mounting plate below the support plate; the top frame is used to lift the loading trolley upwards, and a through hole is opened on the top frame for the second screw to pass through; a first anti-loosening nut is fixedly sleeved on the first screw on the inner side of the mounting plate, and a second anti-loosening nut is fixedly sleeved on the second screw on the inner side of the top frame; a U-shaped pressure rod is provided on the front side of the loading trolley; the two ends of the U-shaped pressure rod are respectively fixed on the swing plate; when the U-shaped pressure rod swings up and down, the swing plate and the top frame swing.

[0011] Optionally, the loading trolley is provided with wing plates on the top left and right sides; a push rod is fixedly provided on the front side of the loading trolley; the top frame is used to lift the wing plates.

[0012] Beneficial effects: This invention provides a feeding device for a mixing machine. By fixing a dust cover above the feed hopper, the raw material dust generated during the feeding process can be initially blocked, reducing the diffusion of raw material dust into the surrounding environment. A dust removal system consisting of a first dust conveying main pipe, a second dust conveying main pipe, a dust extraction pipe, a dust extraction hose, and a cartridge dust collector can transport the raw material dust generated inside the dust cover to the cartridge dust collector. The cartridge dust collector filters and collects the raw material dust, effectively treating it and preventing it from being emitted into the raw material workshop, thus protecting the health of production personnel. Furthermore, a loading trolley is installed below the dust outlet of the cartridge dust collector, allowing the filtered and collected raw material dust to fall into the trolley, facilitating its recycling and reuse, and preventing raw material waste caused by dust spreading into the raw material workshop and being unable to be collected. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the feeding device of the mixer provided by this utility model.

[0015] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0016] Figure 3 This is a simplified structural diagram of the cartridge dust collector.

[0017] Figure 4 This is an assembly diagram of the baffle plate.

[0018] Figure 5 yes Figure 4 Enlarged view of section B.

[0019] Figure 6 This is a schematic diagram of the structure of the insert assembly. Figure 1 .

[0020] Figure 7 This is a schematic diagram of the structure of the insert assembly. Figure 2 .

[0021] Figure 8 This is a schematic diagram of the loading trolley located below the insert plate assembly.

[0022] Figure 9 yes Figure 8 Enlarged view of section C.

[0023] Figure 10 This is a schematic diagram of the structure of the insert assembly. Figure 3 .

[0024] Figure 11 This is a schematic diagram of the structure of the insert assembly. Figure 4 .

[0025] Figure 12 This is a schematic diagram of the loading trolley.

[0026] Explanation of icon numbers: 1-Feed hopper; 2-Screw feeder; 3-Dust cover; 301-Feeding port; 4-First dust conveying main pipe; 5-Second dust conveying main pipe; 6-Dust extraction pipe; 7-Cartridge dust collector; 701-Chassis; 7011-Air outlet; 7012-Air inlet; 702-Discharge hopper; 703-Filter cartridge; 704-Air jet pipe; 705-Pulse valve; 706-Exhaust fan; 8-Loading trolley; 801-Wing plate; 802-Push rod; 9-Dust extraction hose; 10-Electric... 11-Air valve; 12-Support plate; 13-Baffle rod; 14-Insert plate assembly; 15-Upper baffle; 16-Support plate; 17-U-shaped groove; 18-Baffle; 19-Second oblique nut; 20-Second oblique nut; 21-U-shaped pressure rod. Detailed Implementation

[0027] 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.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see Figures 1 to 12 This utility model provides a feeding device for a mixing machine, including a feeding hopper 1, a screw feeder 2, a dust cover 3, a first dust conveying main pipe 4, a second dust conveying main pipe 5, a dust extraction pipe 6, a cartridge dust collector 7, and a loading trolley 8.

[0032] The screw feeder 2 has its feed pipe connected to the bottom of the feed hopper 1, and its discharge pipe connected to the inlet of the mixer. The raw materials required for producing PVC foam boards are fed into the feed hopper 1, then discharged from the bottom of the feed hopper 1 and enter the screw feeder 2. The screw feeder 2 then transports the raw materials to the mixer for mixing. The dust cover 3 is fixedly installed above the feed hopper 1, serving to prevent dust accumulation.

[0033] The second dust conveying main pipe 5 is arranged vertically, with its two ends connected to the air inlet 7012 of the cartridge dust collector 7 and the first dust conveying main pipe 4, which is arranged parallel to the ground, respectively. The dust extraction pipe 6 is connected to the first dust conveying main pipe 4, and the lower end of the dust extraction pipe 6 is fitted with a dust extraction hose 9 that connects to the top of the dust cover 3. The loading trolley 8 is located below the dust discharge port of the cartridge processor 7.

[0034] This invention, by fixing a dust cover 3 above the feed hopper 1, can initially block the raw material dust generated during the feeding process, reducing the diffusion of raw material dust into the surrounding environment. Furthermore, by setting up a dust removal system consisting of a first dust conveying main pipe 4, a second dust conveying main pipe 5, a dust extraction pipe 6, a dust extraction hose 9, and a cartridge dust collector 7, the raw material dust generated inside the dust cover 3 can be transported to the cartridge dust collector 7. The cartridge dust collector 7 filters and collects the raw material dust, achieving effective treatment of the raw material dust and preventing it from being emitted into the raw material workshop, thus endangering the health of production personnel. By setting a loading trolley 8 below the dust discharge port of the cartridge dust collector 7, the filtered and collected raw material dust can fall into the loading trolley 8, facilitating the recycling and reuse of the raw material dust and avoiding raw material waste caused by the inability to collect the dust due to its diffusion into the raw material workshop.

[0035] like Figure 1 As shown, in an optional embodiment, at least two dust extraction pipes 6 are provided, and each dust extraction pipe 6 is connected to an electric air valve 10. When multiple dust extraction pipes 6 are provided, they can be connected to the dust covers 3 of multiple feed hoppers 1 respectively, thereby extracting raw material dust generated at multiple feeding points, expanding the coverage of the dust removal system, and improving the dust removal efficiency of the raw material workshop. By connecting the dust extraction pipes 6 to the electric air valves 10, when some feed hoppers 1 are not being fed and dust extraction is not required, the electric air valves 10 on the corresponding dust extraction pipes 6 can be closed to reduce energy consumption.

[0036] like Figure 1As shown, in an optional embodiment, the dust cover 3 has a feeding port 301 on its front side, and the feeding port 301 is tilted downwards to facilitate production personnel to feed the raw materials in the bag into the hopper 1. A support plate 11 is horizontally fixed to the front top of the hopper 1; the support plate 11 can support the bag containing the raw materials, making it easier for production personnel to control the tilting speed and angle of the bag with less effort, ensuring that the raw materials are fed into the hopper 1. Furthermore, the top left and right sides of the support plate 11 are horizontally provided with baffle bars 12. When the operator controls the bag to tilt and feed the material on the support plate 11, the baffle bars 12 can prevent the bag from slipping off the left and right sides of the support plate 11 due to uneven hand force or the shift of the bag's center of gravity, thus avoiding the bag falling and causing raw material spillage and waste.

[0037] like Figure 1 and Figure 3 As shown, in an optional embodiment, the cartridge dust collector 7 includes a housing 701, a hopper 702 located below the housing 701 and communicating with the interior of the housing 701, a filter cartridge 703 mounted inside the housing 701, an air jet pipe 704 fixed inside the housing 701 and located above the filter cartridge 703, a pulse valve 705 connected to the air jet pipe 704, and an induced draft fan 706 located on the side wall of the housing 701; an air outlet 7011 is provided on the top or side of the housing 701; the air outlet 7011 is located above the filter cartridge 703. In this embodiment, the cartridge dust collector 7 provides a closed space through the housing 701, ensuring that the dust treatment process is concentrated and does not spread. The hopper 702 located below the housing 701 and communicating with its interior can collect the filtered dust in a timely manner, facilitating subsequent recovery by the loading trolley 8. The filter cartridge 703, mounted inside the casing 701, serves as the core filtration component. It efficiently intercepts raw material dust, ensuring that the discharged gas meets environmental protection requirements. The jet pipe 704, fixed above the filter cartridge 703, works in conjunction with the connected pulse valve 705 to periodically clean the dust adhering to the surface of the filter cartridge 703 via pulse jets. This prevents clogging, maintains the long-term stable filtration performance of the filter cartridge 703, and extends its service life. The induced draft fan 706 provides stable negative pressure suction, ensuring the dust removal power of the dust collection system and guaranteeing efficient dust collection.

[0038] like Figures 4 to 11 As shown, in an optional embodiment, the dust collection port of the cartridge dust collector 7 is horizontally provided with an insert plate assembly 13; a baffle plate 14 is horizontally inserted inside the insert plate assembly 13. When the cartridge dust collector 7 is normally filtering and collecting dust, and the loading trolley 8 is not below the dust collection port, the baffle plate 14 can close the dust collection port to prevent raw material dust from falling directly to the ground, thereby avoiding raw material waste and reducing dust generation. When it is necessary to use the loading trolley 8 to collect the raw material dust falling from the dust collection hopper, the baffle plate 14 is moved out of the insert plate assembly 13.

[0039] like Figures 4 to 7 As shown, in an optional embodiment, the insert plate assembly 13 includes an upper baffle 131 horizontally disposed at the dust inlet of the cartridge dust collector 7 and two support plates 132 horizontally fixed to the bottom of the upper baffle 131. The upper baffle 131 is arranged around the dust inlet of the cartridge dust collector 7, and a U-shaped groove 133 with an opening facing downwards is formed at the bottom of the upper baffle 131. The baffle plate 14 is movably inserted into the U-shaped groove 133, and the baffle plate 14 is supported by the tops of the two support plates 132. In this embodiment, the U-shaped groove 133 and the two support plates 132 cooperate to form a sliding groove structure, ensuring that the baffle plate 14 can slide smoothly along the U-shaped groove 133 to realize the opening and closing of the dust inlet.

[0040] like Figure 6 and Figure 7 As shown, in an optional embodiment, the upper baffle 131 has a blocking part 135 vertically downward on its rear side, which can restrict the sliding stroke of the baffle 14 from the rear side when the baffle 14 is inserted along the U-shaped groove 133 to close the dust inlet, thereby reminding the production personnel to move the baffle 14 into place; the baffle 14 has a push plate 141 vertically upward on its front side, which provides a convenient force application part for the production personnel to pull the baffle 14, and the baffle 14 can be easily pushed or pulled without the need for additional tools, improving the convenience of operation.

[0041] like Figure 4 , Figure 5 , Figures 8 to 12 As shown, in an optional embodiment, a mounting plate 136 is vertically provided on the side of the support plate 132 away from the baffle plate 14; a first oblong hole 1361 is provided on the mounting plate 136 along its length, and a second oblong hole 1362 is provided on the mounting plate 136 along its vertical direction; a first screw 15 is movably disposed in the first oblong hole 1361; a second screw 16 is movably disposed in the second oblong hole 1362; both the first screw 15 and the second screw 16 are perpendicular to the mounting plate 136; a swing plate 17 is provided on the outer side of the mounting plate 136; both the first screw 15 and the second screw 16 are fixedly inserted through... The mounting plate 136 is mounted on the swing plate 17; a top frame 18 is provided on the inner side of the mounting plate 136 below the support plate 132; the top frame 18 is used to lift the loading trolley 8 upward, and a through hole is provided on the top frame 18 for the second screw 16 to pass through. A first anti-loosening nut 19 is fixedly sleeved on the inner side of the mounting plate 136 on the first screw 15, and a second anti-loosening nut 20 is fixedly sleeved on the inner side of the top frame 18 on the second screw 16; a U-shaped pressure rod 21 is provided on the front side of the loading trolley 8; the two ends of the U-shaped pressure rod 21 are respectively fixed on the swing plate 17; when the U-shaped pressure rod 21 swings up and down, the swing plate 17 and the top frame 18 swing.

[0042] like Figure 10 and Figure 11As shown, when production personnel are... Figure 8 When the U-shaped pressure rod 21 swings upward as shown, since both ends of the U-shaped pressure rod are fixed to the swing plate 17, the upward swing force of the U-shaped pressure rod 21 causes the lower end of the swing plate 17 to swing forward within the first oblong hole 1361, while the second screw 16 at the upper end of the swing plate 17 swings counterclockwise downward within the second oblong hole 1362, generating downward and backward forces on the top frame 18. This causes the front side of the top frame 18 to swing downward, and simultaneously the top frame 18 moves downward (as shown). Figure 10 , Figure 11 (as shown); and when the U-shaped pressure bar 21 is from Figure 10 , Figure 11 When the swing plate 17 swings downward as shown, the lower end of the swing plate 17 moves backward through the first oblong hole 1361. During this process, the second screw 16 at the upper end of the swing plate 17 swings clockwise upward within the second oblong hole 1362, simultaneously generating an upward and forward force on the top frame 18, enabling the top frame 18 to move upward and return to a state parallel to the horizontal plane (as shown). Figure 4 (As shown). When the top frame 18 returns to a state parallel to the horizontal plane, the swing plate 17 cannot continue to swing because the first screw 15 and the second screw 16 are blocked by the wall of the waist-shaped hole, and the U-shaped pressure rod 21 cannot continue to press down.

[0043] Therefore, when it is necessary to collect the raw material dust discharged from the dust outlet of the cartridge dust collector 7, the U-shaped pressure bar 21 is swung downward to drive the top frame 18 to lift the loading trolley 8 upward, so that the top of the loading trolley 8 is close to the dust outlet of the cartridge dust collector 7, which can reduce the dust generated when the dust falls; and when the loading is completed, the U-shaped pressure bar is swung upward, the top frame 18 falls back, and the loading trolley 8 can be moved out from under the insert plate assembly 13, which facilitates the transfer and recovery of the raw materials collected in the loading trolley 8.

[0044] like Figure 12 As shown, in an optional embodiment, the top left and right sides of the loading trolley 8 are provided with wing plates 801; the front side of the loading trolley 8 is fixedly provided with a push rod 802 for convenient pushing of the trolley; the top frame 18 is used to lift the wing plates 801. In this embodiment, the symmetrical wing plates 801 can ensure that the loading trolley 8 remains horizontal during the lifting process, and prevent the trolley from tilting due to uneven force, which would cause dust to spill.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A feeding device for a mixer, comprising a hopper (1) and a screw feeder (2); the feed pipe (201) of the screw feeder (2) is connected to the bottom of the hopper (1); characterized in that, It also includes a dust cover (3), a first dust conveying main pipe (4), a second dust conveying main pipe (5), a dust extraction pipe (6), a cartridge dust collector (7), and a loading trolley (8); the dust cover (3) is fixedly installed above the feed hopper (1); the two ends of the second dust conveying main pipe (5) are respectively connected to the air inlet of the cartridge dust collector (7) and the first dust conveying main pipe (4); the dust extraction pipe (6) is connected to the first dust conveying main pipe (4), and the lower end of the dust extraction pipe (6) is fitted with a dust extraction hose (9) connected to the top of the dust cover (3); the loading trolley (8) is located below the dust outlet of the cartridge dust collector (7).

2. The feeding device of the mixer according to claim 1, characterized in that, The dust extraction pipe (6) is provided with at least two pipes, and the dust extraction pipe (6) is connected to an electric air valve (10).

3. The feeding device of the mixer according to claim 1, characterized in that, The dust cover (3) has a feeding port (301) on the front side, and the feeding port (301) is inclined downward; the top front side of the feed hopper (1) is horizontally fixed with a support plate (11); the top left and right sides of the support plate (11) are horizontally provided with baffle rods (12).

4. The feeding device of the mixer according to claim 1, characterized in that, The cartridge dust collector (7) includes a housing (701), a hopper (702) located below the housing (701) and communicating with the inside of the housing (701), a cartridge (703) mounted inside the housing (701), an air jet pipe (704) fixed inside the housing (701) and located above the cartridge (703), a pulse valve (705) connected to the air jet pipe (704), and an induced draft fan (706) located on the side wall of the housing (701); an air outlet (7011) is provided on the top or side of the housing (701); the air outlet (7011) is located above the cartridge (703).

5. The feeding device of the mixer according to claim 1, characterized in that, The dust collection port of the cartridge dust collector (7) is provided with a horizontal insert plate assembly (13); a baffle plate (14) is horizontally inserted inside the insert plate assembly (13).

6. The feeding device of the mixer according to claim 5, characterized in that, The insert plate assembly (13) includes an upper baffle (131) horizontally disposed at the dust inlet of the cartridge dust collector (7) and two support plates (132) horizontally fixed to the bottom of the upper baffle (131); the bottom of the upper baffle (131) forms an upward-opening U-shaped groove (133); the baffle plate (14) is movably inserted into the U-shaped groove (133), and the baffle plate (14) is supported by the top of the two support plates (132).

7. The feeding device of the mixer according to claim 6, characterized in that, The upper baffle (131) has a blocking part (135) vertically downward on its rear side; the baffle plate (14) has a push plate (141) vertically upward on its front side.

8. The feeding device of the mixer according to claim 6, characterized in that, A mounting plate (136) is vertically provided on the side of the support plate (132) away from the baffle plate (14); a first oblong hole (1361) is provided on the mounting plate (136) along the length direction of the mounting plate (136), and a second oblong hole (1362) is provided on the mounting plate (136) along the vertical direction; a first screw (15) is movably installed in the first oblong hole (1361); a second screw (16) is movably installed in the second oblong hole (1362); both the first screw (15) and the second screw (16) are perpendicular to the mounting plate (136); a swing plate (17) is provided on the outer side of the mounting plate (136); both the first screw (15) and the second screw (16) are fixedly installed through the swing plate (17). Above; the inner side of the mounting plate (136) is provided with a top frame (18) below the support plate (132); the top frame (18) is used to lift the loading trolley (8) upward, and the top frame (18) is provided with a through hole for the second screw (16) to pass through. The first screw (15) is fixedly sleeved with a first anti-loosening nut (19) on the inner side of the mounting plate (136), and the second screw (16) is fixedly sleeved with a second anti-loosening nut (20) on the inner side of the top frame (18); the front side of the loading trolley (8) is provided with a U-shaped pressure rod (21); the two ends of the U-shaped pressure rod (21) are respectively fixed on the swing plate (17); when the U-shaped pressure rod (21) swings up and down, the swing plate (17) and the top frame (18) swing.

9. The feeding device of the mixer according to claim 8, characterized in that, The top left and right sides of the loading trolley (8) are provided with wing plates (801); the front side of the loading trolley (8) is fixedly provided with a push rod (802); the top frame (18) is used to lift the wing plates (801).

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