Powder weighing mechanism

Abstract

The utility model belongs to the technical field of powder weighing equipment, and particularly relates to a powder weighing mechanism, which comprises a support frame, the conveying assemblies are horizontally arranged in an array mode, and each conveying assembly comprises a conveying box body and a material conveying barrel communicating with the conveying box body; the movable weighing assembly comprises two round steel linear guide rails arranged on the supporting frame, two U-shaped groove rollers arranged on the round steel linear guide rails, a frame connected with the U-shaped groove rollers through bearings, a precision electronic scale arranged on the frame and a batching barrel arranged on the precision electronic scale; according to the weighing mechanism for the powder, the U-shaped groove rollers roll on the corresponding round steel linear guide rails to drive the frame, the precision electronic scale and the batching barrels to move to one side of the corresponding conveying assembly so as to contain and weigh the powder discharged by the conveying barrel, and therefore the effects that the number of the batching barrels is reduced, centralized metering is achieved, and the maintenance cost is reduced are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder material weighing equipment, and particularly relates to a weighing mechanism for powder material. Background Art

[0002] In the printing and dyeing industry, powders play a crucial role. Whether they are vibrant reactive dyes, fine and uniform pigments, or functional auxiliaries, these powders are essential elements for textile dyeing, printing, and post-processing. With the continuous advancement of printing and dyeing technology and the increasing diversification of market demands, the types of powders are also increasing, reaching dozens or even more. Accurate weighing of powders is a key step in ensuring product quality and process stability.

[0003] The traditional weighing method is usually that the powder is discharged from the material box and then transported to the barrel. However, this method requires the preparation of a large number of barrels, and each barrel needs to be equipped with corresponding equipment, such as a metering device, etc., which has high equipment purchase and maintenance costs.

[0004] Therefore, in order to solve the above problems, it is necessary to design a weighing mechanism for powder materials. Utility Model Content

[0005] The purpose of the utility model is to provide a weighing mechanism for powder materials to solve the technical problems mentioned in the background technology.

[0006] In order to solve the above technical problems, the utility model provides a weighing mechanism for powder materials, comprising:

[0007] Support frame;

[0008] A plurality of conveying assemblies are arranged in a horizontal array, each conveying assembly comprising: a conveying box and a conveying cylinder connected to the conveying box;

[0009] The mobile weighing assembly comprises: two round steel linear guide rails arranged on a support frame, two U-shaped groove rollers arranged on the round steel linear guide rails, a frame connected to the bearings of each U-shaped groove roller, a precision electronic scale arranged on the frame, and a batching barrel arranged on the precision electronic scale; wherein

[0010] Each of the U-groove rollers is suitable for rolling on a corresponding round steel linear guide rail to drive the frame, the precision electronic scale and the batching barrel to move to one side of the corresponding conveying assembly to accommodate and weigh the powder discharged from the feeding cylinder.

[0011] Furthermore, the mobile weighing assembly further comprises: a rack provided on the support frame, a first gear meshed with the rack, a first reducer connected to the first gear, and a first motor connected to the first reducer; wherein

[0012] The first reducer is fixed on the support frame; and

[0013] The first motor is fixed on the first reducer;

[0014] The first motor is suitable for driving the first gear to rotate through the first reducer, and the first gear is engaged with the rack to drive the U-groove rollers on the frame to roll on the corresponding round steel linear guide rails.

[0015] Furthermore, the mobile weighing assembly further comprises: a first cylinder arranged below the precision electronic scale;

[0016] The first cylinder is fixed to the frame; and

[0017] The first cylinder is suitable for driving the precision electronic scale and the batching barrel to move upward when extended, so that the batching barrel is close to the feeding tube.

[0018] Furthermore, the mobile weighing assembly further comprises: a plurality of rollers connected to the frame bearings, a second gear sleeved on one side of each roller, and a first chain meshed with each second gear; wherein

[0019] The batching barrel is placed on each roller; and

[0020] Any of the second gears is adapted to be driven by the first chain when rotating to drive the other second gears to rotate, so that each roller is rotated and transported to a predetermined position.

[0021] Furthermore, the mobile weighing assembly further comprises: a second reducer provided on the frame, a second motor connected to the second reducer, a third gear connected to the second reducer, a fourth gear sleeved on one side of any roller, and a second chain wound around the third gear and the fourth gear; wherein

[0022] The second motor is adapted to drive the third gear to rotate via the second reducer; and

[0023] The third gear is suitable for driving the fourth gear to rotate through the second chain, so as to drive the corresponding roller to rotate.

[0024] Furthermore, the mobile weighing assembly further comprises: a plurality of supporting vertical plates equidistantly arranged on the precision electronic scale;

[0025] Each of the support vertical plates is located between adjacent rollers, so that when the first cylinder is extended, the support vertical plates are driven to lift the batching barrel.

[0026] Furthermore, the mobile weighing assembly further comprises: a dust cover arranged on the frame, a dust pipe connected to the dust cover and a shell arranged outside the frame; wherein

[0027] The mixing barrel is adapted to be close to the dust hood when being lifted up, and there is a certain gap between the dust hood and the mixing barrel.

[0028] Furthermore, the conveying assembly further comprises: a bearing seat embedded in one side of the conveying box, a spiral arranged in the conveying box and the conveying barrel, and a filter arranged at the discharge end of the conveying barrel; wherein

[0029] The bearing seat is sleeved on the spiral body; and

[0030] The spiral body is suitable for conveying materials into the feeding cylinder when rotating, and discharging the materials from the filter screen.

[0031] Furthermore, the conveying assembly further comprises: a front end cover fixing seat hoop mounted on the outside of the feeding barrel, a cover-lifting rod mounted on the front end cover fixing seat, a universal joint connected to the cover-lifting rod, a front end cover connected to the universal joint, and a return spring mounted on the front end cover fixing seat; wherein

[0032] The cover-lifting rod is connected to the fixed seat bearing;

[0033] The return spring abuts against one end of the cover-lifting rod;

[0034] The return spring is suitable for making the front cover seal the feeding cylinder through the cover-lifting rod and the universal joint;

[0035] The mobile weighing assembly further comprises: a second cylinder arranged on the frame;

[0036] The second cylinder is suitable for lifting the cover rod when extended, so that the cover rod drives the front end cover away from the feeding barrel through the universal joint, so that the discharge end of the feeding barrel is opened.

[0037] Furthermore, each of the conveying boxes is connected to a material box above;

[0038] The top of the material box is connected to a vacuum suction bin;

[0039] One side of the vacuum suction bin is connected to a vacuum suction pipe;

[0040] A powder feeding pipe is provided on the side of the material box;

[0041] A partition is provided between the powder feeding pipe and the vacuum suction bin;

[0042] The bottom of the vacuum suction bin is connected to a filter cloth bracket;

[0043] The filter cloth support is provided with a filter cloth; wherein

[0044] The filter cloth support and the filter cloth are located in the material box;

[0045] A pulse dust removal pipe is provided on the top of the vacuum suction bin;

[0046] The pulse dust removal tube is suitable for removing dust from the filter cloth;

[0047] A vibration motor is provided on the side of the material box and / or the side of the conveying box body.

[0048] The beneficial effects of the utility model are:

[0049] (1) The powder enters the feeding barrel through the conveying box. When the powder needs to be weighed, the mobile weighing assembly rolls on the round steel linear guide through the U-groove roller and moves to the side of the corresponding conveying assembly. The batching barrel is opposite to the outlet of the feeding barrel. The conveying assembly conveys the powder into the batching barrel. The precision electronic scale displays the weight of the powder in real time. When the preset weight is reached, the discharge of the powder is stopped. After the weighing is completed, the mobile weighing assembly rolls on the round steel linear guide again through the U-groove roller and moves to the side of the next conveying assembly that needs to be weighed. Through the above description, the effect of reducing the number of batching barrels, centralized metering and lowering maintenance costs is achieved.

[0050] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0053] Figure 1 It is a perspective view of a preferred embodiment of the entirety of the present invention;

[0054] Figure 2 It is a three-dimensional diagram of the preferred embodiment of the mobile weighing component of the utility model. Figure 1 ;

[0055] Figure 3 It is a three-dimensional diagram of the preferred embodiment of the mobile weighing component of the utility model. Figure 2 ;

[0056] Figure 4 It is a three-dimensional diagram of the preferred embodiment of the mobile weighing component of the utility model. Figure 3 ;

[0057] Figure 5 It is a three-dimensional diagram of the preferred embodiment of the mobile weighing component of the utility model. Figure 4 ;

[0058] Figure 6 is a cross-sectional view of a preferred embodiment of the conveying assembly of the present utility model;

[0059] Figure 7 It is a perspective view of a preferred embodiment of the conveying assembly of the present utility model;

[0060] Figure 8 It is a perspective view of a preferred embodiment of the material box of the present utility model;

[0061] Figure 9 It is a cross-sectional view of a preferred embodiment of the material box of the present utility model.

[0062] In the picture:

[0063] Support frame 1, conveying assembly 2, conveying box 201, feeding cylinder 202, bearing seat 203, spiral body 204, filter screen 205, front cover fixing seat 206, cover lifting rod 207, universal joint 208, front cover 209, return spring 210;

[0064] Mobile weighing assembly 3, round steel linear guide 301, U-groove roller 302, frame 303, precision electronic scale 304, batching barrel 305, rack 306, first gear 307, first reducer 308, first motor 309, first cylinder 310, roller 311, second gear 312, first chain 313, second reducer 314, second motor 315, third gear 316, fourth gear 317, second chain 318, support riser 319, dust cover 320, dust collection pipe 321, housing 322, second cylinder 323;

[0065] Material box 4, vacuum suction bin 5, vacuum suction pipe 6, powder feeding pipe 7, partition 8, filter cloth bracket 9, filter cloth 10, pulse dust removal pipe 11, vibration motor 12. DETAILED DESCRIPTION

[0066] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention. Example 1

[0067] like Figures 1 to 9 As shown, this embodiment provides a powder material weighing mechanism, comprising:

[0068] A support frame 1; several conveying components 2 arranged in a horizontal array, each conveying component 2 comprising: a conveying box 201 and a feeding barrel 202 connected to the conveying box 201; a mobile weighing component 3, comprising: two round steel linear guide rails 301 arranged on the support frame 1, two U-shaped groove rollers 302 arranged on the round steel linear guide rails 301, a frame 303 connected to the bearings of each U-shaped groove roller 302, a precision electronic scale 304 arranged on the frame 303 and a batching barrel 305 arranged on the precision electronic scale 304; wherein each of the U-shaped groove rollers 302 is suitable for rolling on the corresponding round steel linear guide rail 301 to drive the frame 303, the precision electronic scale 304 and the batching barrel 305 to move to one side of the corresponding conveying component 2 to accommodate and weigh the powder discharged from the feeding barrel 202.

[0069] In this embodiment, the powder enters the feed barrel 202 through the conveying box 201. When the powder needs to be weighed, the mobile weighing component 3 rolls on the round steel linear guide 301 through the U-groove roller 302 and moves to one side of the corresponding conveying component 2. The batching barrel 305 is opposite to the outlet of the feed barrel 202. The conveying component 2 conveys the powder into the batching barrel 305. The precision electronic scale 304 displays the weight of the powder in real time. When the preset weight is reached, the powder is stopped from being discharged. After the weighing is completed, the mobile weighing component 3 rolls on the round steel linear guide 301 again through the U-groove roller 302 and moves to the side of the next conveying component 2 that needs to be weighed. Through the above description, the effect of reducing the number of batching barrels 305, centralized metering and reducing maintenance costs is achieved.

[0070] The mobile weighing assembly 3 also includes: a rack 306 arranged on the support frame 1, a first gear 307 engaged with the rack 306, a first reducer 308 connected to the first gear 307 and a first motor 309 connected to the first reducer 308; wherein the first reducer 308 is fixed on the support frame 1; and the first motor 309 is fixed on the first reducer 308; the first motor 309 is suitable for driving the first gear 307 to rotate through the first reducer 308, and engaging with the rack 306 through the first gear 307 to drive each U-groove roller 302 on the frame 303 to roll on the corresponding round steel linear guide rail 301; wherein the cooperation of the first motor 309, the first reducer 308, the first gear 307 and the rack 306 is realized to achieve precise control of the mobile weighing assembly 3, ensuring the accuracy and stability of each movement.

[0071] The mobile weighing assembly 3 also includes: a first cylinder 310 arranged below the precision electronic scale 304; wherein the first cylinder 310 is fixed on the frame 303; and the first cylinder 310 is suitable for driving the precision electronic scale 304 and the batching barrel 305 to move upward when extended, so that the batching barrel 305 is close to the feeding cylinder 202; wherein the extension and contraction of the first cylinder 310 reduces the distance between the batching barrel 305 and the feeding cylinder 202, avoids the spillage and waste of powder, and improves the accuracy of weighing.

[0072] The mobile weighing assembly 3 also includes: a number of rollers 311 connected to the frame 303 bearings, a second gear 312 mounted on one side of each roller 311 and a first chain 313 engaged with each second gear 312; wherein the ingredient barrel 305 is placed on each roller 311; and any second gear 312 is suitable for being transmitted through the first chain 313 when rotating to drive other second gears 312 to rotate, so that each roller 311 is rotated and transported to a predetermined position; wherein the coordination between the roller 311, the second gear 312 and the first chain 313 realizes the flexible transportation of the ingredient barrel 305 in the horizontal direction, without the need for manual handling, thereby improving work efficiency.

[0073] The mobile weighing assembly 3 also includes: a second reducer 314 arranged on the frame 303, a second motor 315 connected to the second reducer 314, a third gear 316 connected to the second reducer 314, a fourth gear 317 sleeved on one side of any roller 311, and a second chain 318 wound around the third gear 316 and the fourth gear 317; wherein the second motor 315 is suitable for driving the third gear 316 to rotate through the second reducer 314; and the third gear 316 is suitable for driving the fourth gear 317 to rotate through the second chain 318, so as to drive the corresponding roller 311 to rotate; wherein the second motor 315 and the second reducer 314 are arranged in cooperation, and the transmission chain formed by the third gear 316, the fourth gear 317 and the second chain 318 is used to provide rotational power to the roller 311, thereby ensuring that the ingredient barrel 305 can move smoothly.

[0074] The mobile weighing assembly 3 also includes: a number of support vertical plates 319 equidistantly arranged on the precision electronic scale 304; wherein each of the support vertical plates 319 is located between adjacent rollers 311, so that when the first cylinder 310 extends, the support vertical plates 319 are driven to lift the batching barrel 305; wherein by arranging each support vertical plate 319, when the first cylinder 310 extends, the support vertical plates 319 are driven to lift the batching barrel 305, so that the weight of the batching barrel 305 and the powder in the barrel is completely supported by the precision electronic scale 304; wherein when the first cylinder 310 retracts, the weight of the batching barrel 305 and the powder in the barrel is supported by each roller 311, so that the batching barrel 305 is transported when each roller 311 rotates.

[0075] The mobile weighing assembly 3 also includes: a dust hood 320 arranged on the frame 303, a dust pipe 321 connected to the dust hood 320 and a shell 322 arranged on the outside of the frame 303; wherein the batching barrel 305 is suitable for approaching the dust hood 320 when being lifted up, and there is a certain gap between the dust hood 320 and the batching barrel 305; wherein the dust pipe 321 is suitable for being connected to a dust collector or a dust cleaner, and by arranging the dust hood 320 and the dust pipe 321, the effect of collecting and processing powder dust is achieved, thereby avoiding dust pollution of the working environment; wherein a certain gap is provided between the dust hood 320 and the batching barrel 305, thereby avoiding the effect of the dust hood 320 affecting the weighing of the precision electronic scale 304; wherein by arranging the shell 322, the effect of protecting the internal components of the frame 303 is achieved.

[0076] The conveying assembly 2 also includes: a bearing seat 203 embedded in one side of the conveying box 201, a spiral body 204 arranged in the conveying box 201 and the feeding barrel 202, and a filter screen 205 arranged at the discharge end of the feeding barrel 202; wherein the bearing seat 203 is sleeved on the spiral body 204; and the spiral body 204 is suitable for conveying the material into the feeding barrel 202 when rotating, and discharging it from the filter screen 205; wherein the spiral body 204 is composed of a rotating shaft and spiral blades wound around the rotating shaft; wherein the spiral body 204 is driven to rotate by an external driving member; wherein the function of the filter screen 205 is to control the uniform discharge of the powder.

[0077] The conveying assembly 2 further includes: a front end cover fixing seat 206 which is arranged on the outside of the feeding barrel 202, a cover-lifting rod 207 which is arranged on the front end cover fixing seat 206, a universal joint 208 which is connected to the cover-lifting rod 207, a front end cover 209 which is connected to the universal joint 208, and a return spring 210 which is arranged on the front end cover fixing seat 206; wherein the cover-lifting rod 207 is connected to the front end cover fixing seat 206 by a bearing; the return spring 210 abuts against one end of the cover-lifting rod 207; the return spring 210 is suitable for and the universal joint 208 so that the front end cover 209 seals the feed barrel 202; the mobile weighing assembly 3 also includes: a second cylinder 323 arranged on the frame 303; wherein the second cylinder 323 is suitable for lifting the cover rod 207 when extended, so that the cover rod 207 drives the front end cover 209 away from the feed barrel 202 through the universal joint 208, so that the discharge end of the feed barrel 202 is opened; wherein the universal joint 208 is provided to compensate for the cover rod 207 and the front end cover 209, making the connection between the two more flexible and stable.

[0078] In this embodiment, when the second cylinder 323 is not started to extend, the return spring 210 is in the initial state, so that the cover rod 207 and the front end cover 209 remain in the initial position (that is, the front end cover 209 is tightly sealed to the feed barrel 202). When it is necessary to discharge material, the second cylinder 323 is started, the second cylinder 323 extends and lifts the cover rod 207, and the cover rod 207 drives the front end cover 209 away from the discharge end of the feed barrel 202 through the universal joint 208. As the front end cover 209 moves away, the discharge end of the feed barrel 202 is opened, and the material can be discharged from the discharge end. After the material is discharged, the second cylinder 323 retracts, and the return spring 210 resets after losing external pressure, pushing the cover rod 207 and the front end cover 209 back to the initial position, thereby resealing the feed barrel 202. Through the above steps, the effect of preventing material leakage is achieved.

[0079] The top of each of the conveying boxes 201 is connected to a material box 4; the top of the material box 4 is connected to a vacuum suction bin 5; one side of the vacuum suction bin 5 is connected to a vacuum suction pipe 6; a powder feeding pipe 7 is provided on the side of the material box 4; a partition 8 is provided between the powder feeding pipe 7 and the vacuum suction bin 5; a filter cloth bracket 9 is connected to the bottom of the vacuum suction bin 5; a filter cloth 10 is provided on the filter cloth bracket 9; the filter cloth bracket 9 and the filter cloth 10 are located in the material box 4; a pulse dust removal pipe 11 is provided on the top of the vacuum suction bin 5; the pulse dust removal pipe 11 is suitable for removing dust on the filter cloth 10; the side of the material box 4 and / or a vibration motor 12 is provided on the side of the conveying box 201; wherein the vacuum suction pipe 6 is suitable for connecting to an external vacuum source, so that the material box 4 and the conveying box 201 are in a negative pressure state under the sealing of the front end cover 209, and the material is fed into the material box 4 through the powder feeding pipe 7; by providing a partition 8, the inhaled powder is prevented from flying directly to the filter cloth; wherein the pulse dust removal pipe 11 is suitable for connecting to the pulse valve, so as to regularly spray high-pressure gas to the filter cloth 10, so as to remove dust and impurities attached to the filter cloth 10; wherein the vibration motor 12 is provided, so as to prevent the material in the material box 4 and / or the conveying box 201 from being blocked or accumulated.

[0080] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0081] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0082] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0083] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A powder material weighing mechanism, characterized in that: include: Support frame (1); A plurality of conveying assemblies (2) arranged in a horizontal array, each conveying assembly (2) comprising: a conveying box (201) and a conveying cylinder (202) in communication with the conveying box (201); A mobile weighing assembly (3) comprising: two round steel linear guide rails (301) arranged on a support frame (1), two U-shaped groove rollers (302) arranged on the round steel linear guide rails (301), a frame (303) connected to the bearings of the U-shaped groove rollers (302), a precision electronic scale (304) arranged on the frame (303), and a batching barrel (305) arranged on the precision electronic scale (304); wherein Each of the U-grooved rollers (302) is adapted to roll on a corresponding round steel linear guide rail (301) to drive the frame (303), the precision electronic scale (304) and the batching barrel (305) to move to one side of the corresponding conveying assembly (2) to accommodate and weigh the powder discharged from the feeding barrel (202).

2. The powder material weighing mechanism according to claim 1, characterized in that: The mobile weighing assembly (3) further comprises: a rack (306) arranged on the support frame (1), a first gear (307) meshing with the rack (306), a first reducer (308) connected to the first gear (307), and a first motor (309) connected to the first reducer (308); wherein The first reducer (308) is fixed on the support frame (1); and The first motor (309) is fixed on the first reducer (308); The first motor (309) is adapted to drive the first gear (307) to rotate via the first reducer (308), and the first gear (307) is engaged with the rack (306) to drive each U-groove roller (302) on the frame (303) to roll on the corresponding round steel linear guide rail (301).

3. The powder material weighing mechanism according to claim 2, characterized in that: The mobile weighing assembly (3) further comprises: a first cylinder (310) arranged below the precision electronic scale (304); wherein The first cylinder (310) is fixed on the frame (303); and The first cylinder (310) is suitable for driving the precision electronic scale (304) and the batching barrel (305) to move upward when extended, so that the batching barrel (305) is close to the feeding barrel (202).

4. The powder material weighing mechanism according to claim 3, characterized in that: The mobile weighing assembly (3) further comprises: a plurality of rollers (311) connected to the frame (303) bearings, a second gear (312) sleeved on one side of each roller (311), and a first chain (313) meshed with each second gear (312); wherein The batching barrel (305) is placed on each roller (311); and Any of the second gears (312) is adapted to be driven by the first chain (313) when rotating to drive the other second gears (312) to rotate, so that each roller (311) is rotated and transported to a predetermined position.

5. The powder material weighing mechanism according to claim 4, characterized in that: The mobile weighing assembly (3) further comprises: a second reducer (314) provided on the frame (303), a second motor (315) connected to the second reducer (314), a third gear (316) connected to the second reducer (314), a fourth gear (317) sleeved on one side of any roller (311), and a second chain (318) wound around the third gear (316) and the fourth gear (317); wherein The second motor (315) is adapted to drive the third gear (316) to rotate via the second reducer (314); and The third gear (316) is suitable for driving the fourth gear (317) to rotate via the second chain (318), thereby driving the corresponding roller (311) to rotate.

6. The powder material weighing mechanism according to claim 5, characterized in that: The mobile weighing assembly (3) further comprises: a plurality of supporting vertical plates (319) equidistantly arranged on the precision electronic scale (304); wherein Each of the support vertical plates (319) is located between adjacent rollers (311), so that when the first cylinder (310) is extended, the support vertical plates (319) are driven to lift the batching barrel (305).

7. The powder material weighing mechanism according to claim 6, characterized in that: The mobile weighing assembly (3) further comprises: a dust cover (320) arranged on the frame (303), a dust collection pipe (321) connected to the dust cover (320), and a shell (322) arranged outside the frame (303); wherein The batching barrel (305) is adapted to approach the dust hood (320) when being lifted up, and a certain gap exists between the dust hood (320) and the batching barrel (305).

8. The powder material weighing mechanism according to claim 7, characterized in that: The conveying assembly (2) further comprises: a bearing seat (203) embedded in one side of the conveying box (201), a spiral body (204) disposed in the conveying box (201) and the feeding cylinder (202), and a filter screen (205) disposed at the discharge end of the feeding cylinder (202); wherein The bearing seat (203) is sleeved on the spiral body (204); and The spiral (204) is suitable for conveying materials into the feeding barrel (202) when rotating, and discharging the materials from the filter (205).

9. The powder material weighing mechanism according to claim 8, characterized in that: The conveying assembly (2) further comprises: a front end cover fixing seat (206) mounted on the outside of the feeding barrel (202), a cover-lifting rod (207) mounted on the front end cover fixing seat (206), a universal joint (208) connected to the cover-lifting rod (207), a front end cover (209) connected to the universal joint (208), and a return spring (210) mounted on the front end cover fixing seat (206); wherein The cover-lifting rod (207) is connected to the front cover fixing seat (206) by a bearing; The return spring (210) abuts against one end of the cover-lifting rod (207); The return spring (210) is adapted to enable the front end cover (209) to seal the feed tube (202) via the cover-lifting rod (207) and the universal joint (208); The mobile weighing assembly (3) further comprises: a second cylinder (323) arranged on the frame (303); wherein The second air cylinder (323) is adapted to lift the cover-lifting rod (207) when extended, so that the cover-lifting rod (207) drives the front end cover (209) away from the feeding barrel (202) through the universal joint (208), so that the discharge end of the feeding barrel (202) is opened.

10. The powder material weighing mechanism according to claim 9, characterized in that: The top of each of the conveying boxes (201) is connected to a material box (4); The top of the material box (4) is connected to a vacuum suction bin (5); One side of the vacuum suction bin (5) is connected to a vacuum suction pipe (6); A powder feeding pipe (7) is provided on the side of the material box (4); A partition (8) is provided between the powder feeding pipe (7) and the vacuum suction bin (5); The bottom of the vacuum suction bin (5) is connected to a filter cloth support (9); The filter cloth support (9) is provided with a filter cloth (10); wherein The filter cloth support (9) and the filter cloth (10) are located in the material box (4); A pulse dust removal pipe (11) is provided on the top of the vacuum suction bin (5); wherein The pulse dust removal pipe (11) is suitable for removing dust on the filter cloth (10); A vibration motor (12) is provided on the side of the material box (4) and / or the side of the conveying box body (201).

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