Low-energy-consumption powder weighing device

Abstract

The invention provides a low-energy-consumption powder weighing device. The low-energy-consumption powder weighing device comprises a fixed frame; the number of the material storage mechanisms is multiple, each material storage mechanism comprises a plurality of material storage parts, and the bottom of each material storage part is provided with a material outlet; the multiple material containing hoppers correspond to the material storage mechanisms in a one-to-one mode and are used for bearing the powder falling down from the material storage parts in the corresponding material storage mechanisms; the multiple discharging mechanisms are arranged, and the discharging mechanisms are arranged at the discharging ports one by one; the driving mechanism is arranged on the fixed frame, connected with the discharging mechanisms and used for driving the discharging mechanisms to be opened or closed. The low-energy-consumption powder weighing device provided by the invention is provided with the fixed frame, a plurality of material storage mechanisms can be arranged on the fixed frame, the opening and closing of the discharging mechanisms of the material storage parts of the material storage mechanisms can be driven by the driving mechanism, and the discharging of the material storage parts is controlled; and the powder falling from each material storage part in the corresponding material storage mechanism is received through the material containing hoppers in one-to-one correspondence with the material storage mechanisms.

Description

Technical Field

[0001] The present invention belongs to the technical field of material weighing, and particularly relates to a low-energy consumption powder weighing device. Background Art

[0002] Material weighing is an important link in precise batching, quality control, and production process monitoring, and is mainly applied in industries such as chemical engineering, pharmaceuticals, food, and fermentation. The fermentation industry utilizes the metabolic activities of microorganisms to convert raw materials into various products through specific processes and equipment.

[0003] In the prior art, since the fermentation batching contains more than a dozen raw materials, according to the process formula, the weights of these raw materials are different, ranging from grams to kilograms. Therefore, in the production feeding of the fermentation industry, manual feeding is mostly used. However, the feeding in the fermentation industry still faces the situation of many types of raw materials and inconvenient weighing of each raw material. There is also automatic batching, which usually uses screw conveying to control the conveying accuracy. However, screw conveying of more than a dozen raw materials causes a large floor area, high power consumption, and is prone to material storage and caking. Moreover, the space size of the batching workshop is narrow. Therefore, screw conveying is not suitable for application in fermentation industry batching, with poor adaptability and poor practicability. Summary of the Invention

[0004] An embodiment of the present invention provides a low-energy consumption powder weighing device, aiming to solve the problem that the existing automatic batching method is not suitable for application in fermentation industry batching due to a large floor area and high power consumption.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a low-energy consumption powder weighing device, including: A fixed frame; A plurality of storage mechanisms, each of the storage mechanisms includes a plurality of storage parts, and each of the storage parts has a discharge port at the bottom; A plurality of material receiving hoppers, each of the material receiving hoppers corresponds to one of the storage mechanisms, and is used to receive the powder falling from each of the storage parts in the corresponding storage mechanism; A plurality of feeding mechanisms, each of the feeding mechanisms is arranged at each of the discharge ports; A driving mechanism, which is arranged on the fixed frame and is connected to each of the feeding mechanisms, and is used to drive each of the feeding mechanisms to open or close.

[0006] In a possible implementation manner, each of the storage mechanisms includes: A plurality of storage hoppers, the plurality of storage hoppers are horizontally arranged in an array, and the storage hoppers are the storage parts; The first weighing structure, there are multiple ones, and the multiple first weighing structures are arranged in one-to-one correspondence with the multiple storage hoppers. Each first weighing structure is arranged on the fixed frame, and is used to fix the position of the corresponding storage hopper on the fixed frame and weigh the corresponding storage hopper.

[0007] In a possible implementation manner, each first weighing structure includes: The first connecting seats, there are multiple ones. Each first connecting seat is horizontally and spaced around the corresponding storage hopper along the central axis of the corresponding storage hopper. The first sensors, there are multiple ones. One end of each first sensor is connected to the corresponding first connecting seat, and the other end of each first sensor extends outwards and is connected to the fixed frame.

[0008] In a possible implementation manner, each material receiving hopper is provided with a second weighing structure. The second weighing structure is arranged on the fixed frame, and is used to fix the position of the material receiving hopper on the fixed frame and weigh the material receiving hopper. Each second weighing structure includes: The second connecting seats, there are multiple ones. Each second connecting seat is horizontally and spaced around the material receiving hopper along the central axis of the material receiving hopper. The second sensors, there are multiple ones. One end of each second sensor is connected to the second connecting seat, and the other end of each second sensor extends outwards and is connected to the fixed frame.

[0009] In a possible implementation manner, each blanking mechanism includes: The valve body of the flap valve is fixedly arranged at the discharge port of the corresponding storage hopper, and a material passing channel is arranged in the valve body of the flap valve. The flap of the flap valve is slidably arranged in the material passing channel along the horizontal direction. Wherein, a sliding groove for the flap of the flap valve to slide is arranged on the side wall of the valve body of the flap valve.

[0010] In a possible implementation manner, the driving mechanism includes: The moving frame body is slidably arranged on the fixed frame along the interval direction of each storage mechanism. The connecting structures, there are multiple ones. Each connecting structure is arranged in one-to-one correspondence with each storage mechanism. Each connecting structure has multiple connecting parts. Each connecting part corresponds to the corresponding blanking mechanism. Each connecting part is used for detachably connecting with the corresponding flap of the flap valve and driving the corresponding flap of the flap valve to move under the drive of the moving frame body. The driver is power-connected to the moving frame body and is used to drive the moving frame body to slide.

[0011] In a possible implementation, the spacing direction of each of the storage mechanisms is set as a first direction, and a direction perpendicular to and horizontal to the first direction is set as a second direction; Each of the connection structures includes a plurality of connection units, each of which is detachably connected to the corresponding gate valve body, and each of the connection units is the connection portion, and each of the connection units includes: A fixed block, fixed on the movable frame; a positioning socket, fixedly mounted on the movable frame and spaced apart from the fixed block along the second direction; An auxiliary hanging ear, one end of which is connected to the gate valve gate and the other end of which extends horizontally toward the corresponding positioning socket; a telescopic structure, wherein a fixed end of the telescopic structure is fixedly mounted on the fixed block, and the telescopic end of the telescopic structure extends toward the positioning socket along a second direction; A connecting pin, fixedly mounted on the telescopic end of the telescopic structure; Wherein, a first connecting hole for a connecting pin to pass through is provided on the protruding end of the auxiliary hanging ear; Wherein, the positioning socket is provided with a connecting groove for inserting the protruding end of the auxiliary hanging ear, and the side wall of the connecting groove is provided with a second connecting hole for the connecting pin to pass through, and the axis of the second connecting hole is coaxially arranged with the axis of the first connecting hole.

[0012] In a possible implementation, the telescopic structure is an electric push rod.

[0013] In a possible implementation, the low-energy powder weighing device further includes a gram-level weighing mechanism, which can be provided on each of the storage mechanisms. The gram-level weighing mechanism is located at the bottom ends of the two corresponding adjacent storage hoppers, and the gram-level weighing mechanism includes: A connecting block is fixed on the movable frame and is located at the bottom ends of the two corresponding storage hoppers; a driving motor, fixedly mounted on the connecting block and having a power output shaft extending along the first direction; a weighing cantilever, one end of which is dynamically connected to the power output shaft and is capable of pitching and rotating along the first direction as an axis, and the other end of which extends outward; There are two weighing hoppers, which are respectively fixed on both sides of the extended end of the weighing cantilever and are used to correspond to the discharge ports of the storage hoppers after the weighing cantilever is pitched and rotated with the weighing cantilever; A gram-level sensor is provided on the weighing cantilever and is used to weigh the powder in each weighing hopper.

[0014] In a possible implementation, the drive motor is a servo motor.

[0015] In this implementation method, compared with the prior art, a fixed frame is provided. Multiple material storage mechanisms can be arranged on the fixed frame. The opening and closing of the feeding mechanisms of each material storage part of the material storage mechanism can be driven by a driving mechanism to control the feeding of each material storage part. The powder falling from each material storage part in the corresponding material storage mechanism is received by a material receiving hopper corresponding to each material storage mechanism. The multiple material storage mechanisms are arranged at intervals, occupying a small area. The opening and closing of the feeding mechanisms of each material storage part of the material storage mechanism are driven by the driving mechanism, with low power consumption, good adaptability and good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a low-energy-consumption powder weighing device provided by an embodiment of the present invention; Figure 2 is Figure 1 an enlarged structural schematic diagram of part A in Figure 3 It is a front view structural schematic diagram of a moving frame body and a connection structure of a low-energy-consumption powder weighing device provided by an embodiment of the present invention; Figure 4 It is a connection structure schematic diagram of a feeding mechanism and a connection structure of a low-energy-consumption powder weighing device provided by an embodiment of the present invention; Figure 5 It is a side view structural schematic diagram of a low-energy-consumption powder weighing device provided by an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a gram-level weighing mechanism of a low-energy-consumption powder weighing device provided by an embodiment of the present invention; Description of the reference numerals: 10. Fixed frame; 20. Material storage mechanism; 21. Material storage hopper; 22. First weighing structure; 221. First connection seat; 222. First sensor; 30. Material receiving hopper; 31. Second weighing structure; 311. Second connection seat; 312. Second sensor; 40. Feeding mechanism; 41. Plug valve body; 42. Plug valve plate; 50. Driving mechanism; 51. Moving frame body; 52. Connection structure; 521. Connection unit; 5211. Fixed block; 5212. Positioning socket; 5213. Auxiliary hanging ear; 5214. Telescopic structure; 5215. Connection pin; 53. Driver; 60. Gram-level weighing mechanism; 61. Connection block; 62. Driving motor; 63. Weighing cantilever; 64. Weighing hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] It should be noted that the orientation or positional relationship indicated by terms such as "length", "width", "height", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0019] It should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", "fixation", "setting", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In addition, the meanings of "plurality" and "several" are two or more, unless otherwise clearly and specifically defined.

[0021] Please refer to Figures 1 to 6 together. Now, the low - energy - consumption powder weighing device provided by the present invention will be described. The low - energy - consumption powder weighing device includes a fixed frame 10, a storage mechanism 20, a material - receiving hopper 30, a feeding mechanism 40, and a driving mechanism 50. The storage mechanism 20 is provided with a plurality of units. Each storage mechanism 20 includes a plurality of storage parts, and the bottom of each storage part has a discharge port. The material - receiving hopper 30 is provided with a plurality of units. Each material - receiving hopper 30 corresponds to each storage mechanism 20 one by one and is used to receive the powder falling from each storage part in the corresponding storage mechanism 20. The feeding mechanism 40 is provided with a plurality of units. Each feeding mechanism 40 is disposed at each discharge port one by one. The driving mechanism 50 is disposed on the fixed frame 10 and is connected to each feeding mechanism 40 to drive each feeding mechanism 40 to open or close.

[0022] The low - energy - consumption powder weighing device provided by the present invention forms a complete powder weighing system by setting multiple storage mechanisms 20, a material - holding hopper 30, a feeding mechanism 40 and a driving mechanism 50. The multiple storage mechanisms 20 can store various powder materials to meet different production requirements. The material - holding hopper 30 receives the powder for centralized weighing. The feeding mechanism 40 controls the discharging, and the driving mechanism 50 uniformly drives the feeding mechanism 40. Compared with the traditional independent driving method, the number of driving components is reduced, the energy consumption is lowered, and the structure is compact, which is convenient for installation and maintenance.

[0023] The low - energy - consumption powder weighing device provided in this embodiment, compared with the prior art, sets a fixed frame 10. Multiple storage mechanisms 20 can be set on the fixed frame 10. The driving mechanism 50 can drive the opening and closing of the feeding mechanisms 40 of the respective storage parts of the storage mechanism 20 to control the discharging of each storage part, and the powder falling from each storage part of the corresponding storage mechanism 20 is received by the material - holding hopper 30 corresponding to each storage mechanism 20. The multiple storage mechanisms 20 are arranged at intervals, occupying a small area. By driving the opening and closing of the feeding mechanisms 40 of the respective storage parts of the storage mechanism 20 through the driving mechanism 50, the power consumption is small, the adaptability is good, and the practicability is good.

[0024] In some embodiments, the above - mentioned storage mechanism 20 can adopt the structure as Figure 1 , Figure 2 shown. Refer to Figure 1 , Figure 2 , each storage mechanism 20 includes: a storage hopper 21 and a first weighing structure 22. The storage hopper 21 is provided with multiple ones, and the multiple storage hoppers 21 are arranged horizontally in an array. The storage hopper 21 is a storage part. The first weighing structure 22 is provided with multiple ones, and the multiple first weighing structures 22 are arranged in one - to - one correspondence with the multiple storage hoppers 21. Each first weighing structure 22 is arranged on the fixed frame 10 to fix the position of the corresponding storage hopper 21 on the fixed frame 10 and weigh the corresponding storage hopper 21.

[0025] The storage mechanism 20 adopts multiple horizontally - arrayed storage hoppers 21 as storage parts, which is convenient for classifying and storing powder materials. At the same time, the first weighing structure 22 can fix the position of the storage hopper 21 and weigh it, real - time monitoring the material weight in each storage hopper 21, providing data support for accurate feeding, and improving the weighing accuracy.

[0026] In some embodiments, the above - mentioned first weighing structure 22 can adopt the structure as Figure 2 shown. Refer to Figure 2, each first weighing structure 22 includes a first connecting seat 221 and a first sensor 222. Multiple first connecting seats 221 are provided, and each first connecting seat 221 is horizontally spaced around the corresponding storage hopper 21 along the central axis of the corresponding storage hopper 21. Multiple first sensors 222 are provided, one end of each first sensor 222 is connected to the corresponding first connecting seat 221, and the other end of each first sensor 222 extends outward and is connected to the fixed frame 10.

[0027] The multiple first connecting seats 221 and first sensors 222 of the first weighing structure 22 are horizontally spaced around the central axis of the storage hopper 21. This structural design can collect the weight information of the storage hopper 21 more evenly, avoid weighing errors caused by uneven stress, and further improve the weighing accuracy.

[0028] In some embodiments, the above-mentioned material receiving hopper 30 can adopt the structure as Figure 2 shown. Refer to Figure 2 , a second weighing structure 31 is provided on each material receiving hopper 30. The second weighing structure 31 is arranged on the fixed frame 10, used to fix the position of the material receiving hopper 30 on the fixed frame 10 and weigh the material receiving hopper 30. Each second weighing structure 31 includes a second connecting seat 311 and a second sensor 312. Multiple second connecting seats 311 are provided, and each second connecting seat 311 is horizontally spaced around the material receiving hopper 30 along the central axis of the material receiving hopper 30. Multiple second sensors 312 are provided, one end of each second sensor 312 is connected to the second connecting seat 311, and the other end of each second sensor 312 extends outward and is connected to the fixed frame 10.

[0029] The second weighing structure 31 is arranged on the material receiving hopper 30 and cooperates with the weighing structure of the storage hopper 21, which can accurately measure the total weight of the powder falling into the material receiving hopper 30. By comparing and calculating the two weighing data, the accuracy of the weighing result is further ensured.

[0030] In some embodiments, the above-mentioned feeding mechanism 40 can adopt the structure as Figure 2 shown. Refer to Figure 2 , each feeding mechanism 40 includes: a knife gate valve body 41 and a knife gate valve plate 42. The knife gate valve body 41 is fixedly arranged at the discharge port of the corresponding storage hopper 21, and a material passing channel is arranged in the knife gate valve body 41. The knife gate valve plate 42 is slidably arranged in the material passing channel in the horizontal direction.

[0031] Wherein, a sliding groove for the knife gate valve plate 42 to slide is arranged on the side wall of the knife gate valve body 41.

[0032] The blanking mechanism 40 adopts the structure of a knife gate valve body 41 and a knife gate valve plate 42. The structure is simple. By sliding the knife gate valve plate 42 in the material passing channel, it can quickly and stably control the opening and closing of the discharge port, achieve precise control of the powder material flow rate, and reduce material waste.

[0033] The knife gate valve is a key component of the blanking mechanism 40 in this low-energy consumption powder weighing device. Its structure and function design closely revolve around the precise weighing and efficient conveying requirements of powder materials. The knife gate valve consists of a knife gate valve body 41 and a knife gate valve plate 42. The knife gate valve body 41 is fixedly installed at the discharge port of the corresponding storage hopper 21, and there is a material passing channel inside, providing a path for the powder material to fall. The knife gate valve plate 42 is slidably arranged horizontally in the material passing channel, and there is a sliding groove on the side wall of the valve body for the knife gate valve plate 42 to slide, ensuring the smooth sliding of the knife gate valve plate 42. By driving the knife gate valve plate 42 to slide in the material passing channel through the driving mechanism 50, the opening or closing of the discharge port is realized. When powder material needs to be blanked, the driving mechanism 50 makes the knife gate valve plate 42 slide to open the discharge port, and the powder material falls into the lower receiving hopper 30 through the material passing channel under the action of gravity. When blanking is not required, the knife gate valve plate 42 slides to close the discharge port, preventing the powder material from continuing to fall, thereby precisely controlling the flow rate and blanking time of the powder material.

[0034] In some embodiments, the above driving mechanism 50 can adopt the structure as shown in Figure 3 、 Figure 4 See Figure 3 、 Figure 4 , the driving mechanism 50 includes a moving frame body 51, a connecting structure 52, and a driver 53. The moving frame body 51 is slidably arranged on the fixed frame 10 along the interval direction of each storage mechanism 20. There are multiple connecting structures 52, and each connecting structure 52 is arranged corresponding to each storage mechanism 20 one by one. Each connecting structure 52 has multiple connecting parts, and each connecting part corresponds to the corresponding blanking mechanism 40. Each connecting part is used for detachably connecting with the corresponding knife gate valve plate 42, and drives the corresponding knife gate valve plate 42 to move under the drive of the moving frame body 51. The driver 53 is power-connected to the moving frame body 51 and is used to drive the moving frame body 51 to slide.

[0035] The moving frame body 51, the connecting structure 52, and the driver 53 of the driving mechanism 50 cooperate with each other. By driving the moving frame body 51 to slide through one driver 53, and then driving the knife gate valve plates 42 of multiple blanking mechanisms 40 to move, unified driving of multiple storage mechanisms 20 is achieved, greatly reducing energy consumption. At the same time, the detachable connection method of the connecting structure 52 is convenient for equipment maintenance and component replacement.

[0036] In some embodiments, the above connecting structure 52 can adopt the structure as shown in Figure 3 、 Figure 4The structure shown. Refer to Figure 3 and Figure 4 , set the interval direction of each storage mechanism 20 as the first direction, and the direction perpendicular to and horizontal with the first direction as the second direction.

[0037] Each connecting structure 52 includes a plurality of connecting units 521. Each connecting unit 521 is detachably connected to the corresponding plug valve body 41. The connecting unit 521 is a connecting portion. Each connecting unit 521 includes a fixing block 5211, a positioning socket 5212, an auxiliary hanging ear 5213, a telescopic structure 5214, and a connecting pin 5215. The fixing block 5211 is fixedly arranged on the moving frame 51. The positioning socket 5212 is fixedly arranged on the moving frame 51 and is arranged at an interval from the fixing block 5211 along the second direction. One end of the auxiliary hanging ear 5213 is connected to the plug valve plate 42, and the other end extends horizontally towards the corresponding positioning socket 5212. The telescopic structure 5214, the fixed end of the telescopic structure 5214 is fixedly arranged on the fixing block 5211, and the telescopic end of the telescopic structure 5214 extends towards the positioning socket 5212 along the second direction. The connecting pin 5215 is fixedly arranged on the telescopic end of the telescopic structure 5214.

[0038] Among them, a first connecting hole for the connecting pin 5215 to pass through is provided on the extending end of the auxiliary hanging ear 5213.

[0039] Among them, a connecting groove for the extending end of the auxiliary hanging ear 5213 to insert into is provided on the positioning socket 5212. A second connecting hole for the connecting pin 5215 to pass through is provided on the side wall of the connecting groove, and the axis of the second connecting hole is coaxially arranged with the axis of the first connecting hole.

[0040] The design of the connecting unit 521 of the connecting structure 52 realizes the reliable connection and disassembly of the connecting portion and the plug valve plate 42 through the cooperation of components such as the auxiliary hanging ear 5213, the telescopic structure 5214, and the connecting pin 5215, which is convenient for equipment debugging and maintenance, and at the same time ensures the stability of power transmission during driving.

[0041] In some embodiments, the above-mentioned telescopic structure 5214 can adopt structures such as Figure 3 and Figure 4 shown. Refer to Figure 3 and Figure 4 , the telescopic structure 5214 is an electric push rod.

[0042] The telescopic structure 5214 adopts an electric push rod. The electric push rod has the characteristics of sensitive action, stable thrust, and high control precision, and can accurately control the telescopic movement of the connecting pin 5215 to ensure the reliability and stability of the connection between the connecting unit 521 and the plug valve plate 42.

[0043] The telescopic structure 5214 can also be a cylinder. A cylinder is a common pneumatic actuator that uses compressed air as the power source to convert the pressure energy of compressed air into mechanical energy to achieve linear or oscillating motion. When compressed air enters from one side air inlet of the cylinder, it pushes the piston to move to the other side, and the piston rod extends; conversely, when air enters from the other side air inlet, the piston moves in the opposite direction and the piston rod retracts.

[0044] In some embodiments, the above-mentioned gram-level weighing mechanism 60 can adopt a structure as shown in Figure 5 , Figure 6 . Refer to Figure 5 , Figure 6 . The low-energy powder weighing device further includes a gram-level weighing mechanism 60. The gram-level weighing mechanism 60 can be arranged on each storage mechanism 20. The gram-level weighing mechanism 60 is located at the bottom ends of two adjacent corresponding storage hoppers 21. The gram-level weighing mechanism 60 includes a connecting block 61, a driving motor 62, a weighing cantilever 63, a weighing hopper 64, and a gram-level sensor. The connecting block 61 is fixedly arranged on the moving frame 51 and is located at the bottom ends of two corresponding storage hoppers 21. The driving motor 62 is fixedly arranged on the connecting block 61 and has a power output shaft extending in the first direction. One end of the weighing cantilever 63 is power-connected to the power output shaft and rotates in a pitching motion along the first direction as the axis, and the other end extends outwards. There are two weighing hoppers 64, and the two weighing hoppers 64 are respectively fixedly arranged on both sides of the extending end of the weighing cantilever 63 for corresponding to the discharge ports of the respective storage hoppers 21 after rotating in a pitching motion along with the weighing cantilever 63. The gram-level sensor is arranged on the weighing cantilever 63 for weighing the powder in each weighing hopper 64.

[0045] The setting of the gram-level weighing mechanism 60 can accurately weigh small-dose powder materials, make up for the lack of accuracy of the overall weighing structure in small-dose weighing, expand the application range of the device, and meet the weighing scenarios with different accuracy requirements.

[0046] In some embodiments, the above-mentioned driving motor 62 can adopt a structure as shown in Figure 5 , Figure 6 . Refer to Figure 5 , Figure 6 . The driving motor 62 is a servo motor.

[0047] The driving motor 62 adopts a servo motor. The servo motor has the characteristics of high precision, high responsiveness, and high stability, can accurately control the rotation angle and speed of the weighing cantilever 63, ensure that the weighing hopper 64 accurately corresponds to the discharge port of the storage hopper 21, and improve the accuracy and stability of gram-level weighing.

[0048] The drive motor 62 can also be a rotary cylinder, which is a pneumatic actuator capable of achieving rotary motion. A rotary cylinder usually consists of components such as a cylinder block, end covers, a piston, a piston rod, gears, and racks. Some rotary cylinders are also equipped with buffer devices, magnetic switches, etc. to meet different working requirements. Taking the gear-rack type rotary cylinder as an example, when compressed air enters the cylinder, it pushes the piston to move linearly in the cylinder block. The rack on the piston meshes with the gear, converting the linear motion of the piston into the rotary motion of the gear, thereby achieving the rotary action of the output shaft of the cylinder.

[0049] During the operation of the equipment, according to the production requirements, the control system controls the driver 53 to drive the moving frame 51 to slide, and then drives the plug 42 of the plug valve of each blanking mechanism 40 to move through the connection structure 52, opening or closing the discharge port, so that the powder material falls into the corresponding receiving hopper 30. The weight of the storage hopper 21 and the receiving hopper 30 is monitored in real time by the first weighing structure 22 and the second weighing structure 31. For the weighing of small-dose powder materials, the drive motor 62 of the gram-level weighing mechanism 60 drives the weighing cantilever 63 to rotate, so that the weighing hopper 64 corresponds to the discharge port of the storage hopper 21, and the gram-level sensor accurately weighs the powder in the weighing hopper 64 to ensure that the weighing result meets the production requirements.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-energy powder weighing device, characterized in that, Comprising: Fixed frame; Material storage mechanisms, multiple in number, each of the material storage mechanisms includes multiple material storage parts, and the bottom of each of the material storage parts has a discharge port; Material receiving hoppers, multiple in number, each of the material receiving hoppers corresponds to one of the material storage mechanisms, and is used to receive the powder falling from each of the material storage parts in the corresponding material storage mechanism; Material discharging mechanisms, multiple in number, each of the material discharging mechanisms is arranged at each of the discharge ports; Driving mechanism, arranged on the fixed frame and connected to each of the material discharging mechanisms, and is used to drive each of the material discharging mechanisms to open or close.

2. The low-energy powder weighing device according to claim 1, wherein Each of the material storage mechanisms includes: Storage hoppers, multiple in number, the multiple storage hoppers are horizontally arranged in an array, and the storage hoppers are the material storage parts; First weighing structures, multiple in number, the multiple first weighing structures are arranged corresponding to the multiple storage hoppers one by one, each of the first weighing structures is arranged on the fixed frame, and is used to fix the position of the corresponding storage hopper on the fixed frame and weigh the corresponding storage hopper.

3. The low-energy powder weighing device according to claim 2, characterized in that, Each of the first weighing structures includes: First connecting seats, multiple in number, each of the first connecting seats is horizontally spaced and wound around the corresponding storage hopper along the central axis of the corresponding storage hopper; First sensors, multiple in number, one end of each of the first sensors is connected to the corresponding first connecting seat, and the other end of each of the first sensors extends outwards and is connected to the fixed frame.

4. The low-energy powder weighing device according to claim 2, characterized in that, Each of the material receiving hoppers is provided with a second weighing structure, the second weighing structure is arranged on the fixed frame, and is used to fix the position of the material receiving hopper on the fixed frame and weigh the material receiving hopper. Each of the second weighing structures includes: Second connecting seats, multiple in number, each of the second connecting seats is horizontally spaced and wound around the material receiving hopper along the central axis of the material receiving hopper; Second sensors, multiple in number, one end of each of the second sensors is connected to the second connecting seat, and the other end of each of the second sensors extends outwards and is connected to the fixed frame.

5. The low-energy powder weighing device according to claim 2, wherein Each of the material discharging mechanisms includes: Gate valve body, fixedly arranged at the discharge port of the corresponding storage hopper, and a material passing channel is arranged in the gate valve body; Gate valve plate, slidably arranged in the material passing channel in the horizontal direction; Wherein, a sliding groove for the gate valve plate to slide is arranged on the side wall of the gate valve body.

6. The low-energy powder weighing device according to claim 5, characterized in that, The driving mechanism includes: Moving frame body, slidably arranged on the fixed frame along the interval direction of each of the material storage mechanisms; Connection structures, multiple in number, each of the connection structures corresponds to one of the material storage mechanisms one by one, each of the connection structures has multiple connection parts, each of the connection parts corresponds to the corresponding material discharging mechanism, and each of the connection parts is used for detachably connecting with the corresponding gate valve plate, and drives the corresponding gate valve plate to move under the drive of the moving frame body; Driver, power-connected to the moving frame body, and is used to drive the moving frame body to slide.

7. The low-energy powder weighing device according to claim 6, characterized in that, Set the interval direction of each of the material storage mechanisms as the first direction, and the direction perpendicular to and horizontal with the first direction as the second direction; Each of the connection structures includes a plurality of connection units, each of the connection units is detachably connected to the corresponding valve body of the flap valve, the connection unit is the connection part, and each of the connection units includes: A fixed block, fixedly arranged on the moving frame; A positioning socket, fixedly arranged on the moving frame, and spaced from the fixed block along the second direction; An auxiliary hanging ear, one end of which is connected to the flap of the flap valve, and the other end extends horizontally towards the corresponding positioning socket; A telescopic structure, the fixed end of the telescopic structure is fixedly arranged on the fixed block, and the telescopic end of the telescopic structure extends towards the positioning socket along the second direction; A connecting pin, fixedly arranged on the telescopic end of the telescopic structure; Wherein, a first connection hole for the connecting pin to pass through is provided on the extending end of the auxiliary hanging ear; Wherein, a connection groove for the extending end of the auxiliary hanging ear to insert into is provided on the positioning socket, and a second connection hole for the connecting pin to pass through is provided on the side wall of the connection groove, and the axis of the second connection hole is coaxially arranged with the axis of the first connection hole.

8. The low-energy powder weighing device according to claim 7, wherein, The telescopic structure is an electric push rod.

9. The low-energy powder weighing device according to claim 7, characterized in that, The low-energy powder weighing device further includes a gram-level weighing mechanism, the gram-level weighing mechanism can be arranged on each of the storage mechanisms, the gram-level weighing mechanism is located at the bottom ends of two adjacent corresponding storage hoppers, and the gram-level weighing mechanism includes: A connecting block, fixedly arranged on the moving frame and located at the bottom ends of two corresponding storage hoppers; A driving motor, fixedly arranged on the connecting block, and having a power output shaft extending along the first direction; A weighing cantilever, one end of which is power-connected to the power output shaft, rotates in a pitching manner along the first direction as the axis, and the other end extends outwards; Two weighing hoppers, the two weighing hoppers are respectively fixedly arranged on both sides of the extending end of the weighing cantilever, and are used for corresponding to the discharge ports of the respective storage hoppers after rotating in a pitching manner along with the weighing cantilever; A gram-level sensor, arranged on the weighing cantilever, and used for weighing the powder in each of the weighing hoppers.

10. The low-energy powder weighing device according to claim 9, characterized in that, The driving motor is a servo motor.

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