Powder weight reduction type precision metering device

Abstract

The utility model discloses a powder weight reduction type precision metering device which is used in the technical field of new energy powder packaging. The device comprises a rack, a conveying mechanism located at the bottom of the rack and capable of weighing, and a heat sealing mechanism, a powder suction mechanism and a vibration mechanism which are arranged at the top of the rack. The vibrating mechanism comprises at least two groups of vibrating assemblies, and the vibrating assemblies are used for vibrating conveyed objects on the conveying mechanism; the two vibration assemblies are arranged on the two sides of the conveying mechanism correspondingly, the two vibration assemblies are oppositely arranged to form a vibration space, and the vibration space is located above the conveying face of the conveying mechanism; the powder suction mechanism comprises a first lifting assembly and a suction assembly; the moving track of the first lifting assembly is arranged in the vibration space in a penetrating mode, and a moving part of the first lifting assembly is fixedly connected with the suction assembly. According to the device, the vibration mechanism and the liftable powder suction mechanism are matched with each other, so that powder in the powder bag is loosened under the impact of external force, the flowability of the powder is improved, and the problem of low running speed in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of new energy powder packaging technology, and in particular to a powder weight reduction precision metering device. Background Technology

[0002] Different powdered substances are often involved in new energy battery components. These powdered substances need to be packaged and sealed to form powder bags to prevent them from getting damp or contaminated during storage or operation. During the packaging process, the powder bags need to be weighed to ensure that the weight of the powder bags meets the requirements.

[0003] An automatic bag-opening and sealing packaging device based on powder transfer has been disclosed in the prior art. It integrates conveying, weighing, suction, and sealing. It uses a bag-opening device to open the bag and a feeding device to feed the powder. After feeding, a weighing device is used to weigh the powder. If the powder is overweight, the electrode plate in the feeding device is used to ionize and adsorb the excess dust. Then, a bag-sealing device is used to seal the bag and transport it. However, this device and the prior art it represents have the problem of slow operating speed. For powders with strong viscosity or easy agglomeration and poor flowability, the powder is prone to clumping or even forming "dead zones", that is, areas where the powder does not flow. The powder suction speed may decrease due to powder adsorption on the equipment or charge balance issues. Ordinary mechanical devices may reduce the powder suction speed due to the presence of powder "dead zones", thereby reducing the operating speed of the device. Utility Model Content

[0004] This invention provides a powder weight reduction precision metering device, which aims to solve the problem of slow operating speed in existing powder weight reduction precision metering devices.

[0005] This utility model provides a powder weight reduction precision metering device, including a frame, a weighing conveying mechanism located at the bottom of the frame, a heat sealing mechanism, a powder suction mechanism, and a vibration mechanism located at the top of the frame;

[0006] The vibration mechanism includes at least two sets of vibration components, which are used to vibrate the conveyed object on the conveying mechanism; the two sets of vibration components are respectively disposed on both sides of the conveying mechanism, and the two sets of vibration components are arranged opposite to each other to form a vibration space, which is located above the conveying surface of the conveying mechanism;

[0007] The powder suction mechanism includes a first lifting component and a suction component; the moving trajectory of the first lifting component passes through the vibration space, and the moving part of the first lifting component is connected and fixed to the suction component.

[0008] In one embodiment, the vibration assembly includes a vibration bracket, a vibration head assembly, and a vibration cylinder;

[0009] The vibration bracket is fixedly connected to the base of the conveying mechanism;

[0010] The vibrating head assembly is mounted on the vibrating support, located above the conveying surface of the conveying mechanism, and is connected to the vibrating cylinder.

[0011] In one embodiment, the vibrating head assembly includes at least a first vibrating bar and at least one second vibrating bar;

[0012] The first and second vibrating bars are arranged vertically, and the length directions of the first and second vibrating bars are both along the conveying direction of the conveying mechanism.

[0013] In one embodiment, the length of the first vibrating bar matches the conveying length of the conveying mechanism, and the first vibrating bar includes a guide section and a regular section;

[0014] The guide section is arranged adjacent to the feed inlet of the conveying mechanism, and the guide section extends outward from the conveying mechanism;

[0015] The conventional section is arranged coplanarly with the second vibration strip.

[0016] In one embodiment, the suction assembly includes a suction tube and a suction nozzle;

[0017] One end of the suction tube is connected and fixed to the moving part of the first lifting assembly, and the other end of the suction tube is connected and communicated with the suction nozzle. The suction tube is provided with a suction port for communicating with the suction pump.

[0018] Along the direction away from the moving part of the first lifting assembly, the opening of the suction nozzle gradually narrows.

[0019] In one embodiment, the heat sealing mechanism includes a second lifting assembly, a second lateral movement assembly, and a heat sealing assembly;

[0020] The second lifting component is mounted on the moving part of the first lateral component;

[0021] The second transverse component is mounted on the moving part of the second lifting component, and the second transverse component has at least two heat-sealed transverse blocks that can move relative to or away from each other;

[0022] The heat sealing assembly includes at least two heat sealing elements, which are fixed to the heat sealing transverse block and arranged opposite to each other.

[0023] In one embodiment, the heat sealer includes at least two heating tubes and a heating circuit, the heating tubes being connected to the heating circuit, the two heating tubes being arranged vertically, and the length direction of the two heating tubes being arranged along the conveying direction of the conveying mechanism.

[0024] In one embodiment, one of the heat sealers further includes a protruding plate;

[0025] The convex plate is disposed between the two heating tubes, and the convex plate protrudes beyond the two heating tubes.

[0026] In one embodiment, the powder suction mechanism further includes a first lateral movement component;

[0027] The first transverse component is mounted on the top of the frame, and the moving part of the first transverse component is connected and fixed to the first lifting component and the heat sealing mechanism.

[0028] In one embodiment, the conveying mechanism is a belt scale.

[0029] As can be seen from the above technical solutions, this utility model has the following advantages:

[0030] This embodiment provides a powder weight reduction precision metering device. Vibration components are installed on both sides of the conveying mechanism, creating a vibration space. When a powder bag is conveyed to this space, the vibration components continuously vibrate the bag, causing the powder inside to loosen due to external impact, increasing the gaps between the powder particles and improving its flowability. Subsequently, a liftable powder suction mechanism is inserted into the powder bag to suction the powder. Simultaneously, the suction mechanism can move up and down to further disperse the powder, improving its flowability. The combination of these two methods effectively improves powder flowability and accelerates the suction speed, thereby increasing the device's operating speed and effectively solving the problem of slow operating speed in existing powder weight reduction precision metering devices. Attached Figure Description

[0031] 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 these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the overall structure of a powder weight-reduction precision metering device provided in this embodiment of the utility model;

[0033] Figure 2A side view of the overall structure of a powder weight-reduction precision metering device provided in this embodiment of the utility model. Figure 1 ;

[0034] Figure 3 A top view of the overall structure of a powder weight-reduction precision metering device provided in this embodiment of the utility model;

[0035] Figure 4 A side view of the overall structure of a powder weight-reduction precision metering device provided in this embodiment of the utility model. Figure 2 ;

[0036] Figure 5 A front view schematic diagram of the heat sealing mechanism provided in an embodiment of this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the heat-sealing assembly provided in an embodiment of the present utility model;

[0038] Figure 7 A side view of the heat sealing mechanism provided in an embodiment of this utility model;

[0039] Figure 8 A top view of the heat sealing mechanism provided in an embodiment of this utility model;

[0040] Figure 9 This is a schematic diagram of the powder suction mechanism provided in an embodiment of the present invention.

[0041] Figure label:

[0042] 1. Frame; 2. Conveying mechanism; 3. Heat sealing mechanism; 30. Second lifting assembly; 31. Second transverse movement assembly; 310. Heat sealing transverse movement block; 32. Heat sealing assembly; 320. Heat sealing component; 3200. Heating tube; 3201. Convex plate; 4. Powder suction mechanism; 40. First lifting assembly; 41. Suction assembly; 410. Suction tube; 411. Suction nozzle; 42. First transverse movement assembly; 5. Vibration mechanism; 50. Vibration assembly; 500. Vibration support; 501. Vibration head assembly; 5010. First vibration bar; 5010a. Guide section; 5010b. Regular section; 5011. Second vibration bar; 6. Powder bag. Detailed Implementation

[0043] This invention provides a powder weight reduction precision metering device, which aims to solve the problem of slow operating speed in existing powder weight reduction precision metering devices.

[0044] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0045] Please see Figures 1 to 9 The present invention provides a powder weight reduction precision metering device, comprising:

[0046] Rack 1;

[0047] The conveying mechanism 2, which can weigh weights, is located at the bottom of the frame 1;

[0048] Heat sealing mechanism 3 is located at the top of frame 1;

[0049] Vibration mechanism 5; Vibration mechanism 5 includes at least two sets of vibration components 50, the vibration components 50 are used to vibrate the conveyed object on the conveying mechanism 2; the two sets of vibration components 50 are respectively disposed on both sides of the conveying mechanism 2, and the two sets of vibration components 50 are arranged opposite to each other to form a vibration space, the vibration space being located above the conveying surface of the conveying mechanism 2.

[0050] The powder suction mechanism 4 is located on the top of the frame 1. The powder suction mechanism 4 includes a first lifting component 40 and a suction component 41. The moving trajectory of the first lifting component 40 passes through the vibration space, and the moving part of the first lifting component 40 is connected and fixed to the suction component 41.

[0051] In the operation of this embodiment, a powder bag 6 containing powder but not sealed is placed on the conveying mechanism 2. The powder bag 6 is weighed during the transmission of the conveying mechanism 2. If the weight meets the preset value, the heat sealing mechanism 3 is activated to seal the powder bag 6. If the weight is greater than the preset value, the powder bag 6 reaches the vibration space, the transmission is paused, and the vibration mechanism 5 and the powder suction mechanism 4 are activated. The two sets of vibration components 50 continuously vibrate the powder bag 6. The first lifting component 40 of the powder suction mechanism 4 drives the suction component 41 to extend into or out of the powder bag 6 at a preset depth. The suction component 41 sucks the powder in the powder bag 6 until the preset weight requirement is met. Then the vibration mechanism 5 and the powder suction mechanism 4 are turned off, and the heat sealing mechanism 3 is activated to seal the powder bag 6. The sealed powder bag 6 is then conveyed to the next process by the conveying mechanism 2.

[0052] As can be seen from the above working process, the powder bag 6 vibrates continuously under the action of the vibration mechanism 5. During this vibration process, the powder inside the powder bag 6 will be loosened by the impact of external force. Even powders with strong viscosity or poor flowability such as easy agglomeration will increase the gaps between them during the vibration process, reduce the situation of powder clumping or dead zones, and improve flowability. Furthermore, during the insertion and extension process of the powder suction mechanism 4, it will come into contact with the vibrating powder, change the distribution of powder in the powder bag 6, improve the flowability of the powder, and thus accelerate the powder suction speed.

[0053] Compared with the prior art, the device provided in this embodiment has the following advantages: First, the vibration component 50 can vibrate the powder bag 6 to form a tapping effect, which loosens the powder in the powder bag 6, speeds up the powder absorption speed, avoids the problem of slow powder absorption speed due to powder clumping or "dead zones", and also avoids the problem of powder absorption speed decrease due to powder adsorption in the ionization device; Second, the powder absorption mechanism 4 can move up and down to further disperse the powder, improve the flowability of the powder, speed up the powder absorption speed, and avoid the situation in the prior art where the powder absorption mechanism 4 is fixed in one position for adsorption, resulting in a slow adsorption speed.

[0054] As a possible example, such as Figure 1 and Figure 2 As shown, this embodiment provides a structure that the vibration assembly 50 can achieve. The vibration assembly 50 includes a vibration bracket 500, a vibration head assembly 501, and a vibration cylinder. The vibration bracket 500 is connected and fixed to the base of the conveying mechanism 2, and the vibration bracket 500 and the conveying base are arranged in an "L" shape. The vibration head assembly 501 is installed on the vibration bracket 500 and is located above the conveying surface of the conveying mechanism 2. The vibration head assembly 501 is connected and conductive to the vibration cylinder. The vibration cylinder is connected to an air source. The compressed air from the air source enters the corresponding chamber of the cylinder according to the set logic and time interval, pushing the cylinder piston to perform linear reciprocating motion. The vibration head assembly 501 connected to the cylinder piston will vibrate, and the powder bag 6 in contact with the vibration head assembly 501 will vibrate accordingly.

[0055] In some specific embodiments, such as Figure 2As shown, a structure that can be achieved by the vibrating head assembly 501 is further provided. The vibrating head assembly 501 includes at least a first vibrating strip 5010 and at least a second vibrating strip 5011. The first vibrating strip 5010 and the second vibrating strip 5011 are arranged vertically, and the first vibrating strip 5010 and the second vibrating strip 5011 are arranged on the same vertical plane as much as possible. The length direction of the first vibrating strip 5010 and the length direction of the second vibrating strip 5011 are both arranged along the conveying direction of the conveying mechanism 2. The vertically arranged first vibrating strip 5010 and the second vibrating strip 5011 can vibrate the bottom of the powder bag 6 and also vibrate the top of the powder bag 6. Moreover, the strip-shaped structure can increase the contact area with the powder bag 6 and effectively increase the vibration range.

[0056] In this embodiment, as Figure 2 and Figure 3 As shown, the length of the first vibrating bar 5010 matches the conveying length of the conveying mechanism 2. The first vibrating bar 5010 includes a guide section 5010a and a regular section 5010b. The guide section 5010a is arranged near the feed inlet of the conveying mechanism 2 and extends outward from the conveying mechanism 2. That is, two first vibrating bars 5010 are set at the feed inlet, forming a guide structure that gradually narrows towards the regular section 5010b. The regular section 5010b and the second vibrating bar 5011 are arranged coplanarly. The length of the second vibrating bar 5011 is less than that of the first vibrating bar 5010. The second vibrating bar 5011 is arranged near the powder suction mechanism 4. During the conveying process, the powder bag 6 will first enter the regular section 5010b under the guidance of the guide section 5010a. After being guided, the powder bag 6 will enter the regular section 5010b in a preset pattern. For example, the powder bag 6 will enter the regular section 5010b in a way that the length direction is parallel to the conveying direction until it reaches the position of the second vibrating bar 5011, which facilitates the operation of subsequent processes.

[0057] As a possible example, such as Figure 1 As shown, this embodiment provides a structure that the conveying mechanism 2 can achieve. There can be multiple conveying mechanisms 2, and the length direction of the multiple conveying mechanisms 2 is perpendicular to the length direction of the frame 1.

[0058] In this embodiment, the conveying mechanism 2 is a belt scale. In view of the poor re-weighing accuracy of existing powder weight reduction precision metering devices, a special high-precision belt scale is adopted, which has high metering accuracy. When combined with the lifting and suction device, the accuracy can reach ±5g.

[0059] The belt scale includes a load cell, a weighing frame, a belt, a roller mechanism, and a display. The load cell is designed with a central single-point weighing point, which ensures strong independence of the weighing structure, high sampling accuracy, and is not affected by factors before or after it. It also ensures high measurement accuracy. In practice, the belt scale can simultaneously measure the weight of the material and the speed of the belt, and calculate relevant information such as the flow rate of the material. The belt scale is existing technology and will not be described in detail here.

[0060] As a possible example, such as Figure 3 As shown, in order to adaptively adjust the horizontal position of the suction assembly 41 and the heat sealing mechanism 3, the powder suction mechanism 4 also includes a first transverse component 42. The first transverse component 42 is installed on the top of the frame 1. The moving part of the first transverse component 42 is connected and fixed to the first lifting assembly 40 and the heat sealing mechanism 3. The length direction of the first transverse component 42 is perpendicular to the length direction of the multiple conveying mechanisms 2. The first transverse component 42 can drive the first lifting cylinder of the suction assembly 41 and the second lifting assembly 30 of the heat sealing mechanism 3 to move horizontally. On the one hand, it can adjust the position of the current powder bag 6, and on the other hand, it can move to other conveying mechanisms 2 to reciprocate and process other powder bags 6.

[0061] In some specific embodiments, the first transverse moving assembly 42 includes two transverse moving guide rails, a slider, a connecting plate, a rack, a gear, and a first transverse moving drive motor. The two transverse moving guide rails are arranged opposite each other along the length of the frame 1. Each transverse moving guide rail is provided with a rack, and the two racks are arranged opposite each other. The two sliders are slidably mounted on the two transverse moving guide rails. The connecting plate is mounted on the two transverse moving guide rails and is connected and fixed to the two sliders. The connecting plate is provided with a first through hole for mounting the moving part of the first lifting assembly 40, a second through hole for mounting the first transverse moving part, and a third through hole for mounting the first transverse moving drive motor. The first transverse moving drive motor passes through the third through hole and is fixedly connected to the gear. The gear meshes with the rack. Driven by the first transverse moving drive motor, the connecting plate and the suction assembly 41 and the heat sealing mechanism 3 on the connecting plate can be moved horizontally to adjust the position.

[0062] As a possible example, such as Figures 5 to 8As shown, this embodiment provides a structure that the heat sealing mechanism 3 can achieve. The heat sealing mechanism 3 includes a second lifting assembly 30, a second transverse assembly 31, and a heat sealing assembly 32. The second lifting assembly 30 is mounted on the moving part of the first transverse assembly 42. The second transverse assembly 31 is mounted on the moving part of the second lifting assembly 30. The second transverse assembly 31 has at least two heat sealing transverse blocks 310 that can move relative to or away from each other. The heat sealing assembly 32 includes at least two heat sealing elements 320. The heat sealing elements 320 are fixed on the heat sealing transverse blocks 310. The two heat sealing elements 320 are arranged opposite to each other. The two heat sealing elements 320 can move vertically up and down and horizontally left and right in the second lifting assembly 30 and the second transverse assembly 31, which is suitable for packaging powder bags 6 of different sizes and increases the heat sealing flexibility of the heat sealing elements 320 to better align the seal of the powder bag 6.

[0063] In some specific embodiments, such as Figure 5 and Figure 7 As shown, the structure that the second lifting assembly 30 can achieve is further provided. The second lifting assembly 30 includes a second lifting electric cylinder and a second lifting rod. The second lifting electric cylinder is connected to the second lifting rod in a transmission manner. The second lifting rod extends to the bottom of the connecting plate. The second lifting rod is used to connect and fix with the second transverse assembly 31. In specific implementation, the second lifting rod can drive the second transverse assembly 31 and the heat sealing assembly 32 to move up and down to adjust and align the sealing position.

[0064] In some specific embodiments, such as Figure 5 and Figure 6 As shown, a structure that can be realized by the second transverse component 31 is further provided. The second transverse component 31 includes a horizontal lifting guide rail, two heat-sealing transverse blocks 310, and two second transverse drive motors. The horizontal lifting guide rail is connected to the second lifting rod. Two heat-sealing transverse blocks 310 are slidably installed on the horizontal lifting guide rail. The second transverse drive motors are connected to the heat-sealing transverse blocks 310 and are used to drive the two heat-sealing transverse blocks 310 to move relative to each other or in opposite directions. In specific implementation, the heat-sealing transverse blocks 310 can drive the heat-sealing component 32 to move horizontally in order to adjust and align the sealing position.

[0065] In this embodiment, the lifting block includes two lifting slide rails and a horizontal guide rail, and the two lifting slide rails can be slidably mounted on the horizontal guide rail.

[0066] In some specific embodiments, such as Figure 6As shown, the structure that the heat sealing assembly 32 can achieve is further provided. The heat sealing component 320 includes at least two heating tubes 3200 and a heating circuit. The heating tubes 3200 are connected to the heating circuit. The two heating tubes 3200 are arranged vertically. The length direction of the two heating tubes 3200 is arranged along the conveying direction of the conveying mechanism 2. The heating tubes 3200 can move closer to or further away from the powder package 6 under the drive of the heat sealing transverse block 310, thereby clamping the seal of the powder package 6. The two heating tubes 3200 can form a double-layer heat sealing effect, and the heat sealing effect is more significant.

[0067] In this embodiment, as Figure 6 As shown, in order to improve the heat sealing effect, a heat sealing component 320 also includes a protruding plate 3201; Figure 6 The heat sealing element 320 on the left side is provided with a protruding plate 3201, which is located between two heating tubes 3200. The protruding plate 3201 protrudes out of the two heating tubes 3200 and is aligned between the two heating tubes 3200 of the adjacent heat sealing element 320. The setting of the protruding plate 3201 enables the powder bag 6 to be inserted between the four heating tubes 3200 along the protruding plate 3201 when the powder bag 6 is clamped and sealed, which can effectively increase the heating area and improve the heat sealing effect.

[0068] As a possible example, such as Figure 9 As shown, this embodiment provides a structure that the first lifting assembly 40 can achieve. The first lifting assembly 40 includes a first lifting electric cylinder and a first lifting rod. The first lifting electric cylinder and the first lifting rod are connected in a transmission manner. The first lifting rod is used to connect and fix with the suction assembly 41. In specific implementation, the first lifting electric cylinder can drive the first lifting rod to move up and down, thereby driving the suction assembly 41 to lift.

[0069] As a possible example, such as Figure 9 As shown, this embodiment provides a structure that the suction assembly 41 can achieve. The suction assembly 41 includes a suction tube 410 and a suction nozzle 411. One end of the suction tube 410 is connected and fixed to the moving part of the first lifting assembly 40, and the other end of the suction tube 410 is connected and conductive to the suction nozzle 411. The suction tube 410 is provided with a suction port for communicating with the suction pump. The suction port is connected and conductive to the suction pump. Along the direction away from the moving part of the first lifting assembly 40, the opening of the suction nozzle 411 gradually narrows. After adopting this structure, it has the following advantages. On the one hand, the narrowing structure of the suction nozzle 411 helps to disperse the powder in the powder bag 6. After the suction pump is started, the powder is drawn out through the suction nozzle 411 and the suction tube 410. On the other hand, it can lift and lower multiple times to suck up the material. When facing materials with poor flowability, it avoids the problem that the suction tube may fall to the bottom all at once, which may form pits, cause the material to form and not flow. It ensures that more powder is sucked up in a certain period of time, thereby completing the extraction of excess powder.

[0070] As a possible example, such as Figure 1 As shown, this embodiment provides a structure that the frame 1 can achieve. The frame 1 includes two vertical plates with a mesh pattern and four horizontal bars. The two vertical plates are arranged vertically, and the four horizontal bars are fixedly connected between the two vertical plates. The two horizontal bars are located at the top of the frame 1, and the two horizontal bars are located at the bottom of the frame 1.

[0071] As a possible example, this embodiment provides a structure that the electrical control mechanism can achieve. The electrical control mechanism is connected to the conveying mechanism 2, the heat sealing mechanism 3, and the powder suction mechanism 4 by signal. The powder bag 6 can automatically complete small bag conveying, reweighing, automatic material suction, heat sealing and other tasks. It has a high degree of automation, high metering accuracy, and efficient and stable operation.

[0072] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0073] Finally, it should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A powder weight-reducing precision metering device, comprising a frame, a weighable conveying mechanism located at the bottom of the frame, and a heat-sealing mechanism and a powder suction mechanism located at the top of the frame; Its features are, It also includes vibration mechanisms; The vibration mechanism includes at least two sets of vibration components, which are used to vibrate the conveyed object on the conveying mechanism; the two sets of vibration components are respectively disposed on both sides of the conveying mechanism, and the two sets of vibration components are arranged opposite to each other to form a vibration space, which is located above the conveying surface of the conveying mechanism; The powder suction mechanism includes a first lifting component and a suction component; the movement trajectory of the first lifting component passes through the vibration space, and the moving part of the first lifting component is connected and fixed to the suction component.

2. The powder weight-reduction precision metering device according to claim 1, characterized in that, The vibration assembly includes a vibration bracket, a vibration head assembly, and a vibration cylinder. The vibration bracket is connected and fixed to the base of the conveying mechanism; The vibrating head assembly is mounted on the vibrating support, located above the conveying surface of the conveying mechanism, and is connected to the vibrating cylinder.

3. The powder weight-reduction precision metering device according to claim 2, characterized in that, The vibrating head assembly includes a first vibrating bar and at least one second vibrating bar; The first and second vibrating bars are arranged vertically, and the length directions of the first and second vibrating bars are both along the conveying direction of the conveying mechanism.

4. The powder weight-reduction precision metering device according to claim 3, characterized in that, The length of the first vibrating bar is matched with the conveying length of the conveying mechanism, and the first vibrating bar includes a guide section and a regular section; The guide section is arranged adjacent to the feed inlet of the conveying mechanism, and the guide section extends outward from the conveying mechanism; The conventional section is arranged coplanarly with the second vibration strip.

5. The powder weight-reduction precision metering device according to claim 1, characterized in that, The suction assembly includes a suction tube and a suction nozzle; One end of the suction tube is connected and fixed to the moving part of the first lifting assembly, and the other end of the suction tube is connected and communicated with the suction nozzle. The suction tube is provided with a suction port for communicating with the suction pump. Along the direction away from the moving part of the first lifting assembly, the opening of the suction nozzle gradually narrows.

6. The powder weight-reduction precision metering device according to claim 1, characterized in that, The powder suction mechanism also includes a first transverse movement component; The first transverse component is mounted on the top of the frame, and the moving part of the first transverse component is connected and fixed to the first lifting component and the heat sealing mechanism.

7. The powder weight-reduction precision metering device according to claim 6, characterized in that, The heat sealing mechanism includes a second lifting assembly, a second lateral moving assembly, and a heat sealing assembly; The second lifting component is mounted on the moving part of the first lateral component; The second transverse component is mounted on the moving part of the second lifting component, and the second transverse component has at least two heat-sealed transverse blocks that can move relative to or away from each other; The heat sealing assembly includes at least two heat sealing elements, which are fixed to the heat sealing transverse block and arranged opposite to each other.

8. The powder weight-reduction precision metering device according to claim 7, characterized in that, The heat-sealing component includes at least two heating tubes and a heating circuit. The heating tubes are connected to the heating circuit. The two heating tubes are arranged vertically and horizontally, and their length direction is arranged along the conveying direction of the conveying mechanism.

9. The powder weight-reduction precision metering device according to claim 8, characterized in that, One of the heat sealers further includes a raised plate; The protruding plate is disposed between the two heating tubes, protruding beyond the two heating tubes, and aligned with the space between the two heating tubes of the adjacent heat sealer.

10. The powder weight-reduction precision metering device according to claim 1, characterized in that, The conveying mechanism is a belt scale.

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