Multi-bin small material weighing device

Abstract

The utility model relates to the technical field of small material weighing, in particular to a multi-stock-bin small material weighing device, which comprises a main stock bin fixed on a first support and a plurality of small stock bins fixed on a second support, a spiral conveyor is arranged at the bottom of each small stock bin and located at a feeding port of the main stock bin, and the multiple small stock bins are arranged in a circumferential array and form a cavity; wherein a dust hood is arranged in the cavity, the dust hood is connected with a vacuum pump through an air delivery pipe, a filter screen is detachably connected in the dust hood, flying dust is sucked, the dust is prevented from influencing an operator and the working state of the weighing equipment, and the dust hood can be quickly separated through an unlocking connecting piece, so that the weighing equipment is convenient to use. The filter screen is prevented from being blocked after being used for a long time, so that the dust removal efficiency is prevented from being influenced, and the normal use of the dust hood is prevented from being influenced by tedious replacement steps.

Description

Technical Field

[0001] The utility model relates to the technical field of small material weighing, in particular to a multi-bin type small material weighing device. Background Art

[0002] In the production process of stone plastic boxes, some plastic materials and stone powder materials are needed, and they are processed by mixing and stirring in a certain proportion. Before that, the ratio of raw materials needs to be controlled by weighing.

[0003] Therefore, in order to facilitate the weighing and metering of raw materials, it is necessary to use a multi-bin small material weighing device, such as the prior art Chinese patent announcement number "CN106626131A" a small material formula machine, the storage bin is placed on a weighing sensor; a plurality of array-distributed hoppers are distributed around the storage bin; a discharge pipe is provided on one side of the lower part of the hopper, and the discharge port of the discharge pipe is located above the storage bin; a driving motor is provided on the side wall of the hopper; the driving motor is connected to the screw located in the hopper through a connecting rod mechanism, and is used to drive the screw to squeeze the auxiliary material in the hopper into the storage bin through the discharge pipe; a stirring motor is also provided on the side wall of the hopper; the stirring motor is connected to the stirring plate located in the hopper, and the stirring plate is located above the screw; the weighing sensor, driving motor, and stirring motor are all connected to the control system. The invention has high precision and efficiency in batching, reduces chemical hazards to operators, and at the same time, pipeline transportation reduces manpower and labor costs. In addition, the transportation of materials in the hopper and the discharge pipe also avoids dust pollution to the workshop environment, meeting the needs of enterprises.

[0004] However, in actual operation, the dust cover is not convenient for replacing the internal filter. After long-term use, the filter is clogged, which greatly reduces the dust removal efficiency. In addition, the cumbersome replacement process of the filter affects the normal use of the dust cover and the production efficiency of the stone plastic box. Utility Model Content

[0005] The purpose of the utility model is to solve the disadvantage in the prior art that the dust cover is inconvenient for replacing the internal filter screen, and to propose a multi-bin type small material weighing device.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A multi-bin type small material weighing device is designed, comprising a main silo fixed on a first bracket and a plurality of small silos fixed on a second bracket, the second bracket being erected on the periphery of the first bracket, a screw conveyor being provided at the bottom of the small silos at the feed inlet of the main silo, and a plurality of the small silos being arranged in a circular array and forming a cavity;

[0008] Wherein, a dust collection hood is provided in the cavity, the dust collection hood is connected to the vacuum pump through an air pipe, and a filter screen is detachably connected to the inside of the dust collection hood.

[0009] Furthermore, the top of the dust hood protrudes upward to form a planar portion, the inner side of the planar portion extends toward the axis to form an extension portion, and the center point of the top is connected to a connecting portion, and the dust hood is connected to the air pipe through the connecting portion.

[0010] Furthermore, the planar portion is provided with connecting parts on both sides of the connecting part, wherein the dust hood and the connecting part are divided into halves along the central axis, the divided line avoids the connecting part, and the filter is arranged in the planar portion and contacts the extension part.

[0011] Furthermore, an embedding groove and a protrusion are respectively provided between the opposite ends of the dust cover on both sides of the dividing line, and a sealing gasket is provided in the embedding groove and is engaged with the protrusion to form a whole.

[0012] Furthermore, a fixing member is provided above the connecting member, and a protrusion is provided between the opposite ends of the connecting member on both sides of the dividing line. The end face of the fixing member is provided with an avoidance groove, and it is arranged between the protrusion and the planar portion through the avoidance groove.

[0013] Furthermore, push rods are provided on both sides of the side of the fixing member, and the fixing member is rotated by the push rods so that the avoidance grooves and the protrusions are arranged in a staggered manner.

[0014] The multi-bin small material weighing device proposed in the utility model has the beneficial effects that: the utility model is provided with a dust hood, which can suck the flying dust during the raw material feeding process, so as to prevent the dust from affecting the operating personnel and the working state of the weighing equipment, and the dust hood can be quickly separated by unlocking the connecting piece, and then the filter can be quickly replaced, so as to avoid the filter being blocked after long-term use and affecting the dust removal efficiency, and also prevent the normal use of the dust hood from being affected by the cumbersome replacement steps. The structure is simple, the operation is easy, and the practicality is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the dust collection hood of the utility model;

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A;

[0018] Figure 4 This is a schematic diagram of the structure of the filter screen of the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of area B.

[0020] In the figure: 1. First bracket; 2. Main silo; 3. Second bracket; 4. Small silo; 5. Screw conveyor; 6. Dust hood; 61. Plane portion; 62. Extension portion; 63. Connecting portion; 64. Connecting piece; 65. Groove; 66. Fixing piece; 661. Avoidance groove; 662. Push rod; 67. Raised portion; 7. Air pipe; 8. Filter. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-5 , a multi-bin type small material weighing device, comprising a main silo 2 fixed on a first bracket 1 and a plurality of small silos 4 fixed on a second bracket 3, wherein the second bracket 3 is erected on the periphery of the first bracket 1, and a screw conveyor 5 is provided at the bottom of the small silo 4 at the feed port of the main silo 2, and a plurality of the small silos 4 are arranged in a circular array and form a cavity;

[0023] A dust hood 6 is provided in the cavity, which is connected to the vacuum pump via an air pipe 7 and has a filter screen 8 detachably connected thereto.

[0024] It should be added that the capacities of the multiple small silos 4 are different and can be adjusted according to the actual required quantity. The screw conveyor 5 transports the material into the main silo 2 according to the set parameters, and performs cumulative weighing through the weighing device provided in the main silo 2. In addition, the main silo 2 is equipped with a pneumatic butterfly valve, a pneumatic oscillator, an arch breaking device, etc.

[0025] Furthermore, the top of the dust hood 6 bulges upward to form a planar portion 61 , the inner side of the planar portion 61 extends toward the axis to form an extension portion 62 , and the center point of the top is connected to a connecting portion 63 , and the dust hood 6 is connected to the air pipe 7 via the connecting portion 63 .

[0026] It is worth mentioning that the connecting portion 63 is a tubular structure, and is fixed to the gas pipe 7 by internal and external threaded connections, and a sealing gasket is provided at the connecting portion.

[0027] Furthermore, the planar portion 61 is further provided with connecting parts 64 on both sides of the connecting part 63, wherein the dust hood 6 and the connecting part 64 are divided into halves along the central axis, and the divided line avoids the connecting part 63, and the filter net 8 is arranged in the planar portion 61 and contacts the extension portion 62.

[0028] It should be noted that the connecting piece 64 is cylindrical and its axis corresponds to the axis of the dust hood 6. The dust hood 6 and the connecting piece 64 are arranged in half by a dividing line. The advantage is that by separating or closing the dust hood 6, it is convenient to cooperate with the extension part 62 to disassemble and assemble the filter 8, and the connecting pieces 64 on both sides are fixed to achieve the effect of closing the dust hood 6 on both sides.

[0029] In more detail, an embedding groove 65 and a protrusion are respectively provided between the opposite ends of the dust cover 6 on both sides of the dividing line. A sealing gasket is provided in the embedding groove 65 and is engaged with the protrusion to form a whole.

[0030] In general, a fixing member 66 is provided above the connecting member 64, and a protrusion 67 is provided between the opposite ends of the connecting member 64 on both sides of the dividing line. The end face of the fixing member 66 is provided with an avoidance groove 661, and it is arranged between the protrusion 67 and the planar portion 61 through the avoidance groove 661.

[0031] Finally, push rods 662 are provided on both sides of the fixing member 66 , and the fixing member 66 is rotated by the push rods 662 so that the avoidance grooves 661 and the protrusions 67 are arranged in an alternating manner.

[0032] In specific operation, the fixing member 66 is sleeved on the periphery of the connecting member 64 using the avoidance groove 661, and the avoidance groove 661 and the protrusion 67 are staggered by rotation, so as to prevent the fixing member 66 from being separated.

[0033] At this time, the side surfaces of the fixing member 66 are respectively pressed against the raised portion 67 and the flat portion 61 , so that the raised portions 67 on both sides abut against the fixing member 66 to close the dust hood 6 , and then the sealing gasket in the embedding groove 65 is used to ensure air tightness.

[0034] Working mode: When working, put the raw materials into the small silo 4, and transport the raw materials to the main silo 2 through the screw conveyor 5 for cumulative weighing;

[0035] In addition, while the raw materials are being transported, the dust hood 6 cleans the dust through the air pipe 7 in conjunction with an external vacuum pump. In addition, when the filter 8 needs to be replaced:

[0036] By rotating the fixing part 66 through the push rod 662, when the avoidance groove 661 corresponds to the protrusion 67, the fixing part 66 is taken out, the unfixed connecting part 64 is separated, and the dust collection covers 6 on both sides are separated accordingly, and the filter screen 8 can be replaced.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-bin type small material weighing device, comprising a main silo (2) fixed on a first bracket (1) and a plurality of small silos (4) fixed on a second bracket (3), characterized in that: The second bracket (3) is mounted on the periphery of the first bracket (1); a screw conveyor (5) is provided at the bottom of the small silo (4) located at the feed inlet of the main silo (2); and a plurality of the small silos (4) are arranged in a circular array to form a cavity; A dust hood (6) is provided in the cavity, the dust hood (6) is connected to the vacuum pump via an air pipe (7), and a filter screen (8) is detachably connected to the interior of the dust hood (6).

2. The multi-bin small material weighing device according to claim 1, characterized in that: The top of the dust hood (6) is raised upward to form a plane portion (61), the inner side of the plane portion (61) extends toward the axis to form an extension portion (62), and the center point of the top is connected to a connecting portion (63), and the dust hood (6) is connected to the air supply pipe (7) via the connecting portion (63).

3. The multi-bin type small material weighing device according to claim 2, characterized in that: The plane portion (61) is further provided with connecting pieces (64) on both sides of the connecting portion (63), wherein the dust hood (6) and the connecting piece (64) are split along the central axis to form a half arrangement, the split line avoids the connecting portion (63), and the filter (8) is arranged in the plane portion (61) and contacts the extension portion (62).

4. The multi-bin type small material weighing device according to claim 3, characterized in that: An embedding groove (65) and a protrusion are respectively provided between the opposite ends of the dust collecting cover (6) on both sides of the dividing line. A sealing gasket is provided in the embedding groove (65) and is engaged with the protrusion to form a whole.

5. The multi-bin type small material weighing device according to claim 3, characterized in that: A fixing member (66) is provided above the connecting member (64), and a protrusion (67) is provided between the opposite ends of the connecting member (64) on both sides of the dividing line. An avoidance groove (661) is provided on the end surface of the fixing member (66), and the fixing member (66) is provided between the protrusion (67) and the plane portion (61) through the avoidance groove (661).

6. The multi-bin type small material weighing device according to claim 5, characterized in that: Push rods (662) are provided on both sides of the fixing member (66), and the fixing member (66) is rotated by the push rods (662) so that the avoidance grooves (661) and the protrusions (67) are arranged in a staggered manner.

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