Multi-nozzle metering structure and multi-turntable multi-nozzle metering device

Abstract

The utility model relates to a metering structure, in particular to a multi-nozzle metering structure and a multi-turntable multi-nozzle metering device. The utility model provides a multi-nozzle metering structure, which comprises a turntable, a sealing ring and a plurality of blowing components, the top of the turntable is provided with an annular storage groove, the groove bottom of the annular storage groove is provided with a plurality of metering cup holes along the circumferential direction of the annular storage groove, the tops of the plurality of metering cup holes are provided with the blowing components in a pressing manner, and the blowing components press high-pressure airflow into the metering cup holes. The blowing assembly does not rotate along with the rotating disc, the bottom of the metering cup hole abuts against a sealing ring, the sealing ring does not rotate along with the rotating disc, a material guiding channel is formed in the position, corresponding to the blowing assembly, of the sealing ring, and materials in the metering cup hole are pushed by high-pressure airflow to be sprayed out of the material guiding channel. The technical problems that an existing pneumatic metering device cannot work in multiple batches at a time, and the working efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to a metering structure, in particular to a multi-nozzle metering structure and a multi-rotating disk multi-nozzle metering device. Background Art

[0002] Pneumatic transport has been widely used in the metering and bagging of dusty industrial raw materials. Existing pneumatic metering and loading machines generally use a single turntable, and the top of a single turntable corresponds to only one blowing component, that is, only one bag can be loaded at a time, which has low loading efficiency and takes more time when large quantities of materials need to be loaded. Utility Model Content

[0003] The main purpose of the utility model is to provide a multi-nozzle metering structure and a multi-rotating disk multi-nozzle metering device, which solves the technical problems that the existing pneumatic metering device cannot work in multiple batches at one time and has low working efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a multi-nozzle metering structure, including a turntable, a sealing ring and multiple blowing assemblies. An annular material storage trough is provided on the top of the turntable, and multiple metering cup holes are provided at the bottom of the annular material storage trough along its circumferential direction. Blowing assemblies are evenly pressed on the top of the multiple metering cup holes. The blowing assemblies press the high-pressure airflow into the metering cup holes, and the blowing assemblies do not rotate with the turntable. A sealing ring is abutted against the bottom of the metering cup holes, and the sealing ring does not rotate with the turntable. A material guide channel is provided at the position corresponding to the sealing ring and the blowing assembly, and the material in the metering cup holes is sprayed out from the material guide channel under the push of the high-pressure airflow.

[0005] Preferably, the blowing assembly includes a sealing head, a blowing head, an air inlet pipe and a high-pressure air flow machine;

[0006] The sealing head abuts against the bottom of the annular material storage trough. During the rotation of the turntable, the sealing head can be connected to the hole of the metering cup. The top of the sealing head is sealed with the blowing head, the blowing head is sealed with the air inlet pipe, and the air inlet pipe is sealed with the high-pressure air flow machine.

[0007] Preferably, a material guiding head is provided in the material guiding channel, the top of the material guiding head is abutted against and sealed against the bottom of the measuring cup hole, the bottom of the material guiding head is sealed with an airflow amplifier, the top of the airflow amplifier is sealed with the material guiding head, an air inlet hole is provided on the side wall of the airflow amplifier, and a material outlet is provided at the bottom of the airflow amplifier.

[0008] Preferably, a rotating shaft is coaxially fixedly connected to the middle of the rotating disk.

[0009] The utility model also discloses a multi-rotating disk multi-nozzle metering device, which comprises a transmission structure and a plurality of multi-nozzle metering structures. The plurality of multi-nozzle metering structures are arranged in parallel, and the plurality of multi-nozzle metering structures are connected through the transmission structure.

[0010] Preferably, the transmission structure includes a first motor and a plurality of chain drive assemblies. The output end of the first motor and a rotating shaft are drivingly connected through a chain drive assembly, and different rotating shafts are drivingly connected through other chain drive assemblies.

[0011] Preferably, the transmission structure includes a second motor and a plurality of belt drive assemblies. The output end of the second motor and a rotating shaft are drivingly connected through a belt drive assembly, and different rotating shafts are drivingly connected through other belt drive assemblies.

[0012] The beneficial effects of the present utility model are as follows:

[0013] A multi-nozzle metering structure disclosed by the present utility model is equipped with a plurality of blowing components on each turntable. During each discharging process, each blowing component can form a passage together with a metering cup hole and a material guiding channel, and each passage can measure and discharge materials, improving the discharging efficiency.

[0014] A multi-turntable multi-nozzle metering device disclosed by the present utility model realizes synchronous rotation through a transmission structure, enabling multi-pipeline metering and bagging operations to be carried out simultaneously. The number of multi-nozzle metering structures can be selected according to actual situations; each multi-nozzle metering structure can also be provided with a plurality of blowing components, and each blowing component can measure and bag materials for a packaging bag, that is, a single turntable can also realize multi-pipeline simultaneous operation. Description of the Drawings

[0015] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0016] Figure 1 It is a schematic diagram of a multi-nozzle metering structure disclosed in the specific embodiment of the present utility model;

[0017] Figure 2 It is a schematic diagram of a multi-turntable multi-nozzle metering device disclosed in the specific embodiment of the present utility model;

[0018] Figure 3 It is a schematic diagram of the transmission structure disclosed in the specific embodiment of the present utility model;

[0019] Figure 4 It is a schematic diagram of another transmission structure disclosed in the specific embodiment of the present utility model;

[0020] Figure 5 It is a schematic diagram of the turntable and metering cup holes disclosed in the specific embodiment of the present utility model;

[0021] Figure 6 It is a schematic diagram of the air flow amplifier disclosed in the specific embodiment of the present utility model.

[0022] Description of the Reference Numerals:

[0023] 1. Multi-nozzle metering structure; 11. Blowing component; 111. Sealing head; 112. Blowing head; 113. Air inlet pipe; 114. High-pressure air flow machine; 12. Turntable; 121. Annular storage tank; 122. Measuring cup holes; 13. Sealing ring; 14. Rotating shaft; 141. First rotating shaft; 142. Second rotating shaft; 143. Third rotating shaft; 144. Fourth rotating shaft; 131. Material guiding channel; 2. Transmission structure; 21. First motor; 22. Chain transmission component; 221. First sprocket; 222. First chain; 223. Second sprocket; 224. Third sprocket; 225. Second chain; 226. Fourth sprocket; 23. Second motor; 24. Belt transmission component; 241. First idler roller; 242. First belt; 243. Second idler roller; 244. Third idler roller; 245. Second belt; 246. Fourth idler roller; 3. Material guiding head; 4. Air flow amplifier; 41. First channel; 42. Air inlet hole; 5. Tray. Detailed implementation manner

[0024] The following combines the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] As Figure 1 shown, the present invention discloses a multi-nozzle metering structure 1, including a plurality of blowing components 11, a turntable 12 and a sealing ring 13. A rotating shaft 14 is coaxially and fixedly connected to the middle of the turntable 12. The rotating shaft 14 can drive the turntable 12 to rotate. In the following text, the first rotating shaft 141, the second rotating shaft 142, the third rotating shaft 143 and the fourth rotating shaft 144 are all the rotating shaft 14, and the names are only distinguished for the convenience of description.

[0026] An annular storage tank 121 is opened on the top of the turntable 12 along its circumferential direction. As Figure 5 shown, a plurality of measuring cup holes 122 are equally spaced along the circumferential direction of the bottom of the annular storage tank 121. Please continue to refer to Figure 1 , a blowing component 11 is pressed on the top of each of the plurality of measuring cup holes 122. The number of blowing components 11 provided in each multi-nozzle metering structure 1 can be selected according to the actual situation. The number of blowing components 11 determines the number of single-time metering discharge channels of the multi-nozzle metering structure 1. As Figure 1The multi-nozzle metering structure 1 is provided with two blowing components 11, which can fill two packaging bags at a time. The number of blowing components 11 can be determined according to the actual situation in production. The blowing component 11 can press high-pressure gas into the metering cup hole 122, so as to blow out the materials in the metering cup hole 122 and complete the metering and bagging of the materials. During a metering process, one blowing component 11 only communicates with one metering cup hole 122. The blowing component 11 does not rotate with the turntable 12. The blowing component 11 needs to be fixedly connected to an external support structure. The fixing structure is not the inventive point of the present utility model. It is only necessary to ensure that the blowing component 11 does not rotate with the turntable 12 during the fixed connection, which will not be elaborated here.

[0027] Please continue to refer to Figure 1 , the blowing component 11 includes a sealing head 111, a blowing head 112, an air inlet pipe 113 and a high-pressure air flow machine 114. The sealing head 111 abuts against the bottom of the annular storage tank 121. During the rotation of the turntable 12, the sealing head 111 can communicate with any one of the metering cup holes 122. The blowing head 112 is hermetically connected to the top of the sealing head 111. The blowing head 112 is hermetically connected to the air inlet pipe 113, and the air inlet pipe 113 is hermetically connected to the high-pressure air flow machine 114. When in use, the high-pressure air flow passes through the high-pressure air flow machine 114, the air inlet pipe 113, the blowing head 112 and the sealing head 111 in sequence, and finally enters the metering cup hole 122.

[0028] A sealing ring 13 that does not rotate with the turntable 12 abuts against the bottom of the metering cup hole 122. As an installation method of the sealing ring 13, such as Figure 1As shown in the figure, a tray 5 is provided at the bottom of the turntable 12. The tray 5 is fixed below the turntable 12 by a fixing device and does not rotate with the turntable 12. The rotating shaft 14 passes through the middle of the tray 5 and does not contact the tray 5. The fixing device is a prior art, such as a support frame, as long as it can ensure the fixed position of the turntable 12, which will not be elaborated here. A sealing ring 13 is fixedly arranged on the top of the tray 5, and the top of the sealing ring 13 abuts against the bottom of the turntable 12. The sealing ring 13 is made of rubber material, and the sealing ring 13 can block the metering cup hole 122 to prevent the material in the metering cup hole 122 from falling. During the working metering and bagging process, the material needs to pass through the turntable 12 and the sealing ring 13 and enter the packaging bag. In order to enable the material in the metering cup hole 122 communicated with the blowing component 11 to smoothly pass through the sealing ring 13, a material guiding channel 131 (the material guiding channel 131 is a through hole penetrating the sealing ring 13) is provided at the position of the sealing ring 13 corresponding to the blowing component 11. The material guiding channel 131 is arranged directly below the blowing component 11, but there is a gap between them (for installing the turntable 12), and the number of the material guiding channels 131 is the same as the number of the blowing components 11. When in use, the turntable 12 rotates. When the metering cup hole 122 filled with material rotates to below the sealing head 111 along with the turntable 12, the bottom of the metering cup hole 122 is exactly located above the material guiding channel 131, that is, the blowing component 11, the metering cup hole 122 and the material guiding channel 131 form a passage. Subsequently, the blowing component 11 blows out high-pressure air flow. At this time, under the action of the high-pressure air flow, the material can enter the material guiding channel 131 from the metering cup hole 122 and can be ejected from below the material guiding channel 131. When there are multiple blowing components 11, each blowing component 11 forms a passage capable of transporting materials with the metering cup hole 122 and the material guiding channel 131 according to the above structure, which will not be elaborated here.

[0029] Since no nozzle is provided at the bottom of the material guiding channel 131, that is, the material guiding channel 131 cannot extend into the packaging bag, it is not convenient to communicate with the packaging bag and is also prone to spraying materials. To solve the above problems, a material guiding head 3 can also be provided in the material guiding channel 131. As Figure 1 shown, the material guiding head 3 is inserted into the material guiding channel 131. At this time, the material no longer passes through the material guiding channel 131 but passes through the material guiding head 3. The material guiding head 3 is a hollow tubular structure, and the middle cavity of the material guiding head 3 is a material transportation channel. Specifically, the top of the material guiding head 3 abuts against and is sealed to the bottom of the metering cup hole 122. The material guiding head 3 passes through the tray 5 and extends below the tray 5. An air flow amplifier 4 is sealed and connected to the bottom of the material guiding head 3. Please refer to Figure 6 . The side wall of the air flow amplifier 4 is provided with an air inlet hole 42. The air flow amplifier 4 is provided with a first channel 41 penetrating the air flow amplifier 4 along its length direction. The first channel 41 is used for transporting materials. The top of the first channel 41 is sealed and connected to the bottom of the material guiding head 3, and the bottom of the first channel 41 is connected to the packaging bag. When in use, please refer to Figure 1(In the figure, the non-labeled arrows indicate the direction of the high-pressure air flow) The air intake hole 42 on the side wall of the air flow amplifier 4 is communicated with the high-pressure air machine 114. The first path of high-pressure air enters the air flow amplifier 4 from the air intake hole 42. At this time, the second path of high-pressure air in the material blowing assembly 11 carries the material and enters the air flow amplifier 4 together. Under the action of the first path of high-pressure air and the second path of high-pressure air, the bottom of the first channel 41 (i.e., at the position of the packaging bag) is in a negative pressure state. Subsequently, the two paths of high-pressure air merge into one path, and the high-pressure air carries the material and sprays out from the bottom of the first channel 41 and enters the packaging bag. The high-pressure air can disperse the material in the air flow amplifier 4 to prevent the material from blocking the first channel 41 of the air flow amplifier 4.

[0030] As Figure 2 shown, the present invention also discloses a multi-rotary table and multi-nozzle metering device, which includes a transmission structure 2 and a plurality of multi-nozzle metering structures 1. The plurality of multi-nozzle metering structures 1 are arranged in parallel, and the plurality of multi-nozzle metering structures 1 are drivingly connected through the transmission structure 2.

[0031] The transmission structure 2 is drivingly connected with the plurality of multi-nozzle metering structures 1 to drive the plurality of turntables 12 to rotate. As Figure 3 shown, as an implementation manner, the transmission structure 2 includes a first motor 21 and a plurality of chain transmission components 22. For the convenience of introduction, an example of including two chain transmission components 22 is taken. Please refer to Figure 3 . The left chain transmission component 22 includes a first sprocket 221, a first chain 222 and a second sprocket 223. The right chain transmission component includes a third sprocket 224, a second chain 225 and a fourth sprocket 226. The output end of the first motor 21 is coaxially and fixedly connected with the first sprocket 221. Both the first sprocket 221 and the second sprocket 223 are engaged with the first chain 222. The second sprocket 223 is coaxially and fixedly connected with the first rotating shaft 141. The first rotating shaft 141 is also coaxially and fixedly connected with the third sprocket 224. Both the third sprocket 224 and the fourth sprocket 226 are engaged with the second chain 225. The fourth sprocket 226 is coaxially and fixedly connected with the second rotating shaft 142. Thus, the first motor 21 drives the first rotating shaft 141 and the second rotating shaft 142 to rotate simultaneously. When more rotating shafts 14 need to be driven, only the number of chain rotating components 22 needs to be increased and connected according to the above connection method, which will not be elaborated here.

[0032] As Figure 4 shown, as another implementation manner of the transmission structure 2, the transmission structure 2 includes a second motor 23 and a plurality of belt transmission components 24. Taking an example of including two belt transmission components 24, please refer to Figure 4, the belt drive assembly 24 on the left includes a first idler pulley 241, a first belt 242, and a second idler pulley 243; the belt drive assembly 24 on the right includes a third idler pulley 244, a second belt 245, and a fourth idler pulley 246. The output end of the second motor 23 is coaxially and fixedly connected to the first idler pulley 241. The first idler pulley 241 and the second idler pulley 243 are drivingly connected by the first belt 242. The second idler pulley 243 is coaxially and fixedly connected to the third rotating shaft 143. The third rotating shaft 143 is also coaxially and fixedly connected to a third idler pulley 244. The third idler pulley 244 and the fourth idler pulley 246 are drivingly connected by the second belt 245. The fourth idler pulley 246 is coaxially and fixedly connected to the fourth rotating shaft 144. Thus, the second motor 23 drives the third rotating shaft 143 and the fourth rotating shaft 144 to rotate simultaneously. During use, simply increase the number of belt drive assemblies 24 and connect them in the above manner, and the second motor 23 can drive more rotating shafts 14. This will not be elaborated here.

[0033] During use, first place the material in the annular storage tank 121, and then start the transmission structure 2 to drive the turntable 12 to rotate. A scraping plate (not shown in the figure) can also be suspended above the metering cup hole 122. The scraping plate can scrape the material into the metering cup hole 122. Since the scraping plate is not the inventive point of the present invention and the fixing method of the scraping plate is prior art, it will not be elaborated here. When the metering cup hole 122 filled with material is under the blowing assembly 11, the transmission structure 2 pauses working, and the blowing assembly 11 blows air. A stream of high-pressure air passes through the blowing assembly 11 and blows the material in the metering cup hole 122 into the guiding head 3. Another stream of high-pressure air passes through the air flow amplifier 4, further disperses the material leaking from the guiding head 3, and sprays the material from the bottom of the channel of the air flow amplifier 4. This part of the principle has been described in detail above and will not be elaborated here. Subsequently, the material enters the packaging bag below the discharge port, and one-time metering and packaging of the material are completed. Subsequently, the transmission structure 2 starts again to transport the next metering cup hole 122 filled with material under the blowing assembly 11.

[0034] Both the first motor 21 and the second motor 23 can be stepper motors. Each time the motor rotates, the next metering cup hole 122 can be rotated under the blowing assembly 11.

[0035] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

Claims

1. A multi-nozzle metering structure, characterized in that, The invention comprises a rotating disk (12), a sealing ring (13) and a plurality of blowing components (11); the rotating disk (12) is provided with an annular material storage groove (121) at the top; the bottom of the annular material storage groove (121) is provided with a plurality of measuring cup holes (122) along its circumferential direction; the blowing components (11) are evenly pressed on the tops of the plurality of measuring cup holes (122); the blowing components (11) press high-pressure airflow into the measuring cup holes (122); the blowing components (11) do not rotate with the rotating disk (12); the bottoms of the measuring cup holes (122) are abutted against the sealing ring (13); the sealing ring (13) does not rotate with the rotating disk (12); a material guide channel (131) is provided at a position corresponding to the sealing ring (13) and the blowing components (11); the material in the measuring cup holes (122) is ejected from the material guide channel (131) under the push of the high-pressure airflow.

2. The multi-nozzle metering structure according to claim 1, characterized in that, The blowing assembly (11) comprises a sealing head (111), a blowing head (112), an air inlet pipe (113) and a high-pressure air flow machine (114); The sealing head (111) is in contact with the bottom of the annular material storage trough (121); during the rotation of the turntable (12), the sealing head (111) can be connected to the measuring cup hole (122); the top of the sealing head (111) is sealedly connected to the blowing head (112); the blowing head (112) is sealedly connected to the air inlet pipe (113); and the air inlet pipe (113) is sealedly connected to the high-pressure air flow machine (114).

3. The multi-nozzle metering structure according to claim 1, wherein, A material guiding head (3) is provided in the material guiding channel (131), the top of the material guiding head (3) abuts against and is sealed against the bottom of the measuring cup hole (122), the bottom of the material guiding head (3) is sealed with an airflow amplifier (4), the top of the airflow amplifier (4) is sealed with the material guiding head (3), an air inlet hole (42) is provided on the side wall of the airflow amplifier (4), and a material outlet is provided at the bottom of the airflow amplifier (4).

4. The multi-nozzle metering structure according to claim 1, characterized in that, A rotating shaft (14) is coaxially and fixedly connected to the middle of the rotating disk (12).

5. A multi-rotary-disc and multi-nozzle metering device, characterized in that, It comprises a transmission structure (2) and a plurality of multi-nozzle metering structures (1) according to claim 4, wherein the plurality of multi-nozzle metering structures (1) are arranged in parallel, and the plurality of multi-nozzle metering structures (1) are connected in transmission via the transmission structure (2).

6. The multi-rotary-table and multi-nozzle metering device according to claim 5, wherein, The transmission structure (2) comprises a first motor (21) and a plurality of chain transmission assemblies (22); an output end of the first motor (21) and a rotating shaft (14) are transmission-connected via one of the chain transmission assemblies (22); and different rotating shafts (14) are transmission-connected via other of the chain transmission assemblies (22).

7. A multi-rotary-table multi-nozzle metering device according to claim 5, characterized in that, The transmission structure (2) comprises a second motor (23) and a plurality of belt transmission assemblies (24); an output end of the second motor (23) is transmission-connected to a rotating shaft (14) via one of the belt transmission assemblies (24); and different rotating shafts (14) are transmission-connected to each other via other of the belt transmission assemblies (24).

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