Weighing device and weighing method

Abstract

The embodiment of the invention discloses a weighing device and a weighing method, and relates to the technical field of weighing. The weighing device comprises a material storage assembly, a vibration assembly, a weighing assembly and a discharging assembly, the material storage assembly comprises a material storage hopper, a bin door and a driving module, the material storage hopper is provided with a material storage cavity and a discharging channel communicated with the material storage cavity, and the driving module is in transmission connection with the bin door and used for driving the bin door to open or close the discharging channel. The discharging assembly is in transmission connection with the weighing assembly and is used for discharging the weighing assembly, the area of the materials falling to the vibration assembly is gradually increased and the speed of the materials falling to the weighing assembly is gradually increased along with the opening of the bin door to a certain amplitude, and when the bin door is further opened, the materials fall to the weighing assembly through the vibration assembly. The area of the materials falling to the vibration assembly is rapidly increased, and the speed of the materials falling to the weighing assembly is sharply increased, so that the purpose of rapid discharging is achieved.

Description

Technical Field

[0001] This invention relates to the field of weighing technology, and in particular to a weighing device and weighing method. Background Technology

[0002] Traditional linear weighing devices generally use a dual-head vibratory feeding method with large and small vibrations. The large vibration completes the rapid feeding, while the remaining small portion is fed slowly by the small vibration until the set weight is reached. This method requires turning on the vibrating electromagnet at the bottom of the feeding channel to convert current into vibration to drive the material flow, which is inefficient and makes it difficult to complete the feeding process quickly.

[0003] A small number of weighing devices use arc valves with vibration feeding. The arc valves are driven by cylinders or motors, and the arc valves and vibration channels are independent of each other. Although the speed is fast, the size is huge. Summary of the Invention

[0004] Therefore, it is necessary to provide a weighing device and weighing method to solve the problem that traditional linear weighing devices generally adopt a double-headed vibratory feeding method with large and small vibrations. The large vibration completes the rapid feeding, and the remaining small part is fed slowly by the small vibration until the set weight is reached. This method requires the vibrating electromagnet at the bottom of the feeding channel to be turned on, converting the current into vibration to drive the material flow, which is inefficient and makes it difficult to complete the feeding process quickly.

[0005] A small number of weighing devices use arc valves with vibration feeding. The arc valves are driven by cylinders or motors, and the arc valves and vibration channels are independent of each other. Although the speed is fast, the size is huge.

[0006] In a first aspect, the present invention provides a weighing device, the weighing device comprising: a material storage component, a vibration component, a weighing component, and a discharge component. The material storage component includes a material storage hopper, a hopper door, and a drive module. The material storage hopper has a material storage cavity and a discharge channel communicating with the material storage cavity. The drive module is drivenly connected to the hopper door and is used to drive the hopper door to open or close the discharge channel, so as to control the material to fall from the vibration component to the weighing component. The discharge component is drivenly connected to the weighing component and is used to discharge material from the weighing component.

[0007] In one embodiment, the drive module includes a drive motor, a gear, and a rack. The hopper door is slidably connected to the storage hopper near the discharge channel. The drive motor is fixed to the storage hopper and to the gear. The gear is driven to the rack. The rack is fixed to the hopper door. The drive motor drives the gear to move the rack, and the rack moves the hopper door to open or close the discharge channel.

[0008] In one embodiment, the storage hopper is provided with a guide at the discharge channel, and the hopper door is slidably connected to the guide, the guide being used to guide the hopper door.

[0009] In one embodiment, the weighing assembly includes a weighing hopper and a sensor module, wherein the weighing hopper is detachably connected to the sensor module, and the sensor module is used to weigh the weighing hopper.

[0010] In one embodiment, the discharge assembly includes a discharge valve, a power element, and a lever; the weighing hopper has a discharge port; the discharge valve is rotatably connected to the weighing hopper; the discharge valve has a first baffle and a second baffle; and the power element is throttle-connected to the lever and is used to drive the lever to rotate. The power element drives the lever to rotate, the lever abuts against and drives the first baffle to move, and the first baffle drives the discharge valve to rotate to close the discharge port; The power element also drives the lever to rotate, the lever abuts against and drives the second baffle to move, and the second baffle drives the discharge valve to rotate to open the discharge port.

[0011] In one embodiment, the weighing assembly further includes a limiting block rotatably connected to the weighing hopper and used to lock and unlock the discharge valve; The lever abuts against and drives the first baffle to move. During the process of the first baffle driving the discharge valve to rotate to close the discharge port, the lever abuts against and drives the limiting block to rotate, and the limiting block locks the discharge valve. The power element also drives the lever to rotate. The lever abuts against and drives the second baffle to move. During the process of the second baffle driving the discharge valve to rotate to open the discharge port, the lever abuts against and drives the limit block to rotate. The limit block unlocks the discharge valve.

[0012] In one embodiment, the limiting block has a limiting point, the discharge valve has a locking groove, the limiting block has a locking end and an unlocking end, the power element drives the lever to abut the locking end, the limiting block rotates, the limiting point is limited within the locking groove, the power element drives the lever to abut the unlocking end, the limiting block rotates, and the limiting point disengages from the locking groove.

[0013] In one embodiment, the locking end has a closing arc surface, the unlocking end has an opening arc surface, the lever has an unlocking arc surface, the power element drives the lever to abut against the closing arc surface, the limiting block rotates, the limiting point is limited within the locking groove, the power element drives the lever, the unlocking arc surface abuts against the opening arc surface, the limiting block rotates, and the limiting point disengages from the locking groove.

[0014] In one embodiment, the lever further has a retaining arc surface that abuts against the opening arc surface to keep the limiting point disengaged from the locking groove.

[0015] Secondly, the present invention also provides a weighing method, characterized in that the weighing method includes the weighing device of any of the above embodiments, and the weighing method includes the following steps: Based on the weighing results of the weighing component and the required time, the feeding process of the feeding channel is divided into several stages; The drive module in each stage drives the compartment door to open to a different preset opening degree, and the vibration component opens to a different preset vibration amplitude.

[0016] Implementing the embodiments of the present invention will have the following beneficial effects: The weighing device of the present invention has a storage hopper with a storage chamber and a discharge channel connected to the storage chamber. The drive module is driven to the hopper door and is used to drive the hopper door to open or close the discharge channel, so as to control the material to fall to the weighing component through the vibration component. The discharge component is driven to the weighing component and is used to discharge material to the weighing component. As the hopper door opens to a certain extent, the area of ​​material falling to the vibration component gradually increases and the speed of material falling to the weighing component gradually increases. When the hopper door is opened further, the area of ​​material falling to the vibration component increases rapidly and the speed of material falling to the weighing component increases dramatically, thereby achieving the purpose of rapid material discharge.

[0017] Furthermore, since the feeding channel and the vibration assembly are located at the same feeding position, the volume is greatly reduced. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] in: Figure 1 This is an isometric schematic diagram of a weighing device in one embodiment.

[0020] Figure 2 for Figure 1 A schematic diagram of the material storage component and the vibration component in the weighing device shown.

[0021] Figure 3 for Figure 1 A cantilevered schematic diagram of the weighing component in the weighing device shown.

[0022] Figure 4 for Figure 3 Another isometric view of the weighing assembly shown.

[0023] Figure 5 for Figure 4 A partially enlarged schematic diagram of part A in the weighing assembly shown.

[0024] Figure 6 This is an isometric schematic diagram of one embodiment where there are three weighing devices.

[0025] Figure 7 This is an isometric schematic diagram of one embodiment where there are two weighing devices.

[0026] Figure 8 for Figure 7 Top view of the weighing device shown.

[0027] Figure label: 100. Weighing device; 200. Feed inlet; 300. Collection hopper; 1. Material storage assembly; 11. Material storage hopper; 111. Material storage chamber; 112. Material discharge channel; 12. Door; 13. Drive module; 131. Drive motor; 132. Gear; 133. Rack; 14. Guide component; 2. Vibration assembly; 21. Vibrator; 22. Feed chute; 3. Weighing assembly; 31. Weighing hopper; 311. Discharge port; 32. Sensor module; 321. Weighing sensor; 322. Mounting plate; 323. Bracket; 33. Hook; 34. Hanging plate.

[0028] 4. Discharge assembly; 41. Discharge valve; 411. First baffle; 412. Second baffle; 413. Locking groove; 42. Power components; 43. Lever; 431. Unlocking arc surface; 432. Holding arc surface; 433. Body; 434. Lever head; 44. Limiting block; 441. Limiting point; 442. Locking end; 443. Unlocking end; 45. Shaft. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0034] Please combine them together Figures 1 to 3 The weighing device 100 provided by the present invention will now be described.

[0035] The weighing device 100 includes: a material storage component 1, a vibration component 2, and a weighing component 3. The material storage component 1 includes a material storage hopper 11, a hopper door 12, and a drive module 13. The material storage hopper 11 has a material storage chamber 111 and a discharge channel 112 connected to the material storage chamber 111. The drive module 13 is drivenly connected to the hopper door 12 and is used to drive the hopper door 12 to open or close the discharge channel 112 so as to control the material to fall through the vibration component 2 to the weighing component 3. The discharge component 4 is drivenly connected to the weighing component 3 and is used to discharge material from the weighing component 3.

[0036] It is understood that the hopper 11 of the weighing device has a storage chamber 111 and a discharge channel 112 connected to the storage chamber 111. The drive module 13 is driven to the hopper door 12 and is used to drive the hopper door 12 to open or close the discharge channel 112 so as to control the material to fall to the weighing component 3 through the vibration component 2. The discharge component 4 is driven to the weighing component 3 and is used to discharge material to the weighing component 3. As the hopper door 12 opens to a certain extent, the area of ​​the material falling to the vibration component 2 gradually increases and the speed of the material falling to the weighing component 3 gradually increases. When the hopper door 12 is opened further, the area of ​​the material falling to the vibration component 2 increases rapidly and the speed of the material falling to the weighing component 3 increases dramatically, thereby achieving the purpose of rapid material discharge.

[0037] Furthermore, since the feeding channel 112 and the vibration assembly 2 are located at the same feeding position, the volume is greatly reduced.

[0038] It should be noted that the feeding process can be divided into several stages. Each stage can be set with different positions of the bin door 12 and vibration amplitude of the vibration component 2. When the feeding is nearing the end, the opening of the bin door 12 and the vibration amplitude are set to form a good match, so that the feeding weight can be precisely controlled. Finally, the vibration of the vibration component 2 is turned off to complete the weighing. The opening of the bin door 12 and the vibration amplitude during the feeding process can be automatically judged and adjusted by the control system according to the weighing result weight and the required time to achieve a good match between weight accuracy and speed.

[0039] In this embodiment, the drive module 13 includes a drive motor 131, a gear 132, and a rack 133. The hopper door 12 is slidably connected to the storage hopper 11 near the discharge channel 112. The drive motor 131 is fixed to the storage hopper 11 and is also fixed to the gear 132. The gear 132 is drively connected to the rack 133, and the rack 133 is fixed to the hopper door 12. The drive motor 131 drives the gear 132 to move the rack 133, which in turn moves the hopper door 12 to open or close the discharge channel 112. This allows the hopper door 12 to move, thereby enabling it to open or close the discharge channel 112.

[0040] Furthermore, the storage hopper 11 is equipped with a guide 14 at the discharge channel 112, and the hopper door 12 is slidably connected to the guide 14, which guides the hopper door 12. The guide 14 can be a slide rail. The hopper door 12 moves along the direction of the guide 14, enabling the hopper door 12 to open or close the discharge channel 112.

[0041] In one embodiment, such as Figure 2As shown, the vibration assembly 2 includes a vibrator 21 and a feeding trough 22, with the vibrator 21 connected to the feeding trough 22. The vibration generated by the vibrator 21 is transmitted to the feeding trough 22, allowing the material falling from the feeding channel 112 into the feeding trough 22 to fall onto the weighing assembly 3 through vibration. Different vibration frequencies generated by the vibrator 21 result in different vibration amplitudes in the feeding trough 22, thereby altering whether the feeding trough 22 accelerates or slows down the material flow.

[0042] In this embodiment, the feeding trough 22 partially overlaps with the feeding channel 112 under orthographic projection. When the silo door 12 is opened to a certain extent, the material in the feeding channel 112 can fall into the feeding trough 22. If the silo door 12 is opened further, part of the material in the feeding channel 112 falls into the feeding trough 22, and the other part falls directly into the weighing component 3, which can speed up the feeding process.

[0043] In one embodiment, such as Figure 3 As shown, the weighing assembly 3 includes a weighing hopper 31 and a sensor module 32. The weighing hopper 31 is detachably connected to the sensor module 32, which is used to weigh the material in the weighing hopper 31. The weighing hopper 31 is detachable, allowing it to be cleaned periodically. The sensor module 32 weighs the material in the weighing hopper 31 until it reaches a preset weight.

[0044] In this embodiment, the weighing assembly 3 further includes a hook 33 and a hanging plate 34. The hook 33 is fixed to the weighing hopper 31, and the hanging plate 34 is fixed to the sensor module 32. The hook 33 is hung on the hanging plate 34. This allows the weighing hopper 31 to be disassembled.

[0045] Furthermore, the sensor module 32 includes a weighing sensor 321 and a mounting plate 322, with the hanging plate 34 fixed to the mounting plate 322 via the weighing sensor 321. The weighing sensor 321 is fixed via the mounting plate 322 and also to the hanging plate 34, thereby enabling the weighing hopper 31 to be weighed.

[0046] Furthermore, the sensor module 32 also includes a bracket 323, and a mounting plate 322 is fixed to the bracket 323. In this way, the load cell 321 is fixed to the bracket 323 via the mounting plate 322, so that the load cell 321 can be installed and fixed.

[0047] In one embodiment, the weighing device further includes a frame on which the material storage assembly 1, the vibration assembly 2, and the weighing assembly 3 are all mounted. This allows the material storage assembly 1, the vibration assembly 2, and the weighing assembly 3 to be installed.

[0048] In one embodiment, such as Figures 3 to 5As shown, the discharge assembly 4 includes: discharge valve 41, power element 42 and lever 43. The weighing hopper 31 has a discharge port 311. The discharge valve 41 is rotatably connected to the weighing hopper 31. The discharge valve 41 has a first baffle 411 and a second baffle 412. The power element 42 is connected to the lever 43 and is used to drive the lever 43 to rotate. The power element 42 drives the lever 43 to rotate, the lever 43 abuts against and drives the first baffle 411 to move, and the first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311. The power element 42 also drives the lever 43 to rotate. The lever 43 abuts against and drives the second baffle 412 to move. The second baffle 412 drives the discharge valve 41 to rotate to open the discharge port 311. Specifically, the discharge valve 41 is an arc valve.

[0049] Understandably, the weighing hopper 31 of the weighing assembly 3 has a discharge port 311, and a discharge valve 41 is rotatably connected to the weighing hopper 31. The discharge valve 41 has a first baffle 411 and a second baffle 412. The power element 42 is driven by the lever 43 and is used to drive the lever 43 to rotate. The power element 42 drives the lever 43 to rotate, and the lever 43 abuts against and drives the first baffle 411 to move. The first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311. The power element 42 also drives the lever 43 to rotate, and the lever 43 abuts against and drives the second baffle 412 to move. The second baffle 412 drives the discharge valve 41 to rotate to open the discharge port 311. In this way, the discharge valve 41 can rotate in an arc to open or close the discharge port 311, resulting in a smaller travel distance and reduced space occupation. Furthermore, the arc rotation of the discharge valve 41 ensures that any residual material on the discharge valve 41 falls off, without affecting the accuracy of the next weighing.

[0050] It should be added that the driving element can be a motor.

[0051] It should be noted that the power element 42 drives the lever 43 to rotate, the lever 43 abuts against and drives the first baffle 411 to move, and the first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311; the power element 42 drives the lever 43 to rotate in the opposite direction, the lever 43 abuts against and drives the second baffle 412 to move, and the second baffle 412 drives the discharge valve 41 to rotate in the opposite direction to open the discharge port 311.

[0052] In this embodiment, the weighing assembly 3 further includes a limiting block 44, which is rotatably connected to the weighing hopper 31 and is used to lock and unlock the discharge valve 41. Thus, the discharge valve 41 can be locked and unlocked, thereby enabling the discharge valve 41 to stably close the discharge port 311.

[0053] When lever 43 abuts against and drives the first baffle 411 to move, and the first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311, lever 43 abuts against and drives the limit block 44 to rotate, and the limit block 44 locks the discharge valve 41. Specifically, when lever 43 abuts against and drives the first baffle 411 to move, and the first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311, at this time, lever 43 abuts against and drives the limit block 44 to rotate, and the limit block 44 locks the discharge valve 41.

[0054] The power element 42 also drives the lever 43 to rotate. The lever 43 abuts against and drives the second baffle 412 to move. During the process of the second baffle 412 driving the discharge valve 41 to rotate and open the discharge port 311, the lever 43 abuts against and drives the limit block 44 to rotate, and the limit block 44 unlocks the discharge valve 41. Specifically, the power element 42 drives the lever 43 to rotate in the reverse direction. The lever 43 first abuts against and drives the limit block 44 to rotate, and the limit block 44 unlocks the discharge valve 41. Then, the power element 42 continues to drive the lever 43 to rotate in the reverse direction. The lever 43 abuts against and drives the second baffle 412 to move, and the second baffle 412 drives the discharge valve 41 to rotate and open the discharge port 311.

[0055] Furthermore, the limiting block 44 has a limiting point 441, the discharge valve 41 has a locking groove 413, the limiting block 44 has a locking end 442 and an unlocking end 443, the power element 42 drives the lever 43 to abut against the locking end 442, the limiting block 44 rotates, and the limiting point 441 is limited within the locking groove 413, the power element 42 drives the lever 43 to abut against the unlocking end 443, the limiting block 44 rotates, and the limiting point 441 disengages from the locking groove 413. Specifically, the lever 43 abuts against and drives the first baffle 411 to move, the first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311, at this time, the lever 43 abuts against the locking end 442 and drives the limiting block 44 to rotate, the limiting point 441 is limited within the locking groove 413 to lock the discharge valve 41. The power element 42 drives the lever 43 to rotate in the reverse direction. The lever 43 first abuts against the unlocking end 443 and drives the limit block 44 to rotate. The limit point 441 disengages from the locking groove 413 to unlock the discharge valve 41. Then the power element 42 continues to drive the lever 43 to rotate in the reverse direction. The lever 43 abuts against and drives the second baffle 412 to move. The second baffle 412 drives the discharge valve 41 to rotate to open the discharge port 311.

[0056] Furthermore, the locking end 442 has a closing arc surface, the unlocking end 443 has an opening arc surface, and the lever 43 has an unlocking arc surface 431. The power element 42 drives the lever 43 to abut against the closing arc surface, causing the limiting block 44 to rotate and the limiting point 441 to be positioned within the locking groove 413. The power element 42 then drives the lever 43, causing the unlocking arc surface 431 to abut against the opening arc surface, and the limiting block 44 to rotate, disengaging the limiting point 441 from the locking groove 413. By setting the closing arc surface, the lever 43 can more easily drive the limiting block 44 to rotate. Similarly, by setting the opening arc surface, the unlocking arc surface 431 can more easily drive the limiting block 44 to rotate.

[0057] Specifically, lever 43 abuts against and drives the first baffle 411 to move. The first baffle 411 drives the discharge valve 41 to rotate to close the discharge port 311. At this time, lever 43 abuts against the closing arc surface on the locking end 442 and drives the limiting block 44 to rotate. The limiting point 441 is limited in the locking groove 413 to lock the discharge valve 41. Power element 42 drives lever 43 to rotate in the opposite direction. The unlocking arc surface 431 of lever 43 first abuts against the opening arc surface of unlocking end 443 and drives the limiting block 44 to rotate. The limiting point 441 disengages from the locking groove 413 to unlock the discharge valve 41. Then, power element 42 continues to drive lever 43 to rotate in the opposite direction. Lever 43 abuts against and drives the second baffle 412 to move. The second baffle 412 drives the discharge valve 41 to rotate to open the discharge port 311.

[0058] Furthermore, the lever 43 also has a retaining arc surface 432, which abuts against the opening arc surface to keep the limiting point 441 disengaged from the locking groove 413. By setting the retaining arc surface 432, the power element 42 drives the lever 43 to rotate in the reverse direction. The unlocking arc surface 431 of the lever 43 first abuts against the opening arc surface of the unlocking end 443 and drives the limiting block 44 to rotate. The limiting point 441 disengages from the locking groove 413 to unlock the discharge valve 41. Then, the power element 42 continues to drive the lever 43 to rotate in the reverse direction. At this time, the retaining arc surface 432 always abuts against the opening arc surface, thereby keeping the limiting point 441 disengaged from the locking groove 413. The lever 43 abuts against and drives the second baffle 412 to move. The second baffle 412 drives the discharge valve 41 to rotate to open the discharge port 311.

[0059] Furthermore, the lever 43 includes a body 433 and a dial head 434 connected to the body 433. The dial head 434 has an unlocking arc surface 431 and a retaining arc surface 432. The body 433 and the dial head 434 are integrally formed. In this way, the lever 43 will not interfere when it drives the limit block 44 to lock and unlock the discharge valve 41.

[0060] Furthermore, the weighing assembly 3 also includes a shaft 45, through which the power element 42 is fixed to the lever 43. This ensures that the power element 42 is far from other components, thus avoiding any impact on weighing accuracy.

[0061] The present invention also provides a weighing method, which includes the weighing device of any of the above embodiments, and the weighing method includes the following steps: Based on the weighing results of the weighing component 3 and the required time, the feeding process of the feeding channel 112 is divided into several stages; The drive module 13 in each stage drives the door 12 to open to a different preset opening degree, and the vibration component 2 opens to a different preset vibration amplitude.

[0062] It is understood that, using the weighing method of the present invention, the material feeding process of the feeding channel 112 is divided into several stages based on the weighing result of the weighing component 3 and the required time. In each stage, the drive module 13 drives the silo door 12 to open to a different preset opening degree, and the vibration component 2 opens to a different preset vibration amplitude. As the silo door 12 opens to the first preset opening degree, the area of ​​material falling onto the vibration component 2 gradually increases, the vibration component 2 opens to the first preset vibration amplitude, and the speed at which the material falls onto the weighing component 3 gradually increases. When the weighing component 3 weighs the material close to the target value, the silo door 12 opens to the second preset opening degree, and the area of ​​material falling onto the vibration component 2 gradually decreases. The vibration component 2 opens to the second preset vibration amplitude, and the speed at which the material falls onto the weighing component 3 gradually decreases. When the weighing component 3 weighs the material to the target value, the drive module 13 drives the silo door 12 to close, and the vibration component 2 closes.

[0063] It should be added that the feeding process can be divided into several stages. Each stage can be set with different positions of the bin door 12 and vibration amplitude of the vibration component 2. When the feeding is nearing the end, the opening of the bin door 12 and the vibration amplitude are set to form a good match, so that the feeding weight can be precisely controlled. Finally, the vibration of the vibration component 2 is turned off to complete the weighing. The opening of the bin door 12 and the vibration amplitude during the feeding process can be automatically judged and adjusted by the control system according to the weight result and the required time to achieve a good match between weight accuracy and speed.

[0064] In one embodiment, such as Figure 7 As shown, three weighing devices 100 can be connected in parallel, sharing a single feed inlet 200 and a collection hopper 300.

[0065] In one embodiment, such as Figure 7 and Figure 8 As shown, there can be six weighing devices 100, arranged in two rows of three. All six weighing devices 100 share a single feed inlet 200, and each row of weighing devices 100 uses a separate collection hopper 300. Since the storage hopper 11 and the weighing hopper 31 are staggered and mirror each other, the storage hopper 11 can form a larger hopper. By setting a single feed inlet 200, materials can be fed into different storage hoppers 11.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above description discloses only preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A weighing device, characterized in that, The weighing device includes a material storage component, a vibration component, a weighing component, and a discharge component. The material storage component includes a storage hopper, a hopper door, and a drive module. The storage hopper has a storage cavity and a discharge channel connected to the storage cavity. The drive module is drivenly connected to the hopper door and is used to drive the hopper door to open or close the discharge channel to control the material to fall through the vibration component to the weighing component. The discharge component is drivenly connected to the weighing component and is used to discharge material from the weighing component.

2. The weighing device according to claim 1, characterized in that, The drive module includes a drive motor, a gear, and a rack. The hopper door is slidably connected to the storage hopper near the discharge channel. The drive motor is fixed to the storage hopper and is also fixed to the gear. The gear is driven by the rack. The rack is fixed to the hopper door. The drive motor drives the gear to move the rack, and the rack moves the hopper door to open or close the discharge channel.

3. The weighing device according to claim 1, characterized in that, The storage hopper is equipped with a guide at the discharge channel, and the hopper door is slidably connected to the guide, which is used to guide the hopper door.

4. The weighing device according to claim 1, characterized in that, The weighing assembly includes a weighing hopper and a sensor module. The weighing hopper is detachably connected to the sensor module, and the sensor module is used to weigh the weighing hopper.

5. The weighing device according to claim 4, characterized in that, The discharge assembly includes a discharge valve, a power element, and a lever. The weighing hopper has a discharge port. The discharge valve is rotatably connected to the weighing hopper. The discharge valve has a first baffle and a second baffle. The power element is drivenly connected to the lever and is used to drive the lever to rotate. The power element drives the lever to rotate, the lever abuts against and drives the first baffle to move, and the first baffle drives the discharge valve to rotate to close the discharge port; The power element also drives the lever to rotate, the lever abuts against and drives the second baffle to move, and the second baffle drives the discharge valve to rotate to open the discharge port.

6. The weighing device according to claim 5, characterized in that, The discharge assembly also includes a limiting block, which is rotatably connected to the weighing hopper and is used to lock and unlock the discharge valve; The lever abuts against and drives the first baffle to move. During the process of the first baffle driving the discharge valve to rotate to close the discharge port, the lever abuts against and drives the limiting block to rotate, and the limiting block locks the discharge valve. The power element also drives the lever to rotate. The lever abuts against and drives the second baffle to move. During the process of the second baffle driving the discharge valve to rotate to open the discharge port, the lever abuts against and drives the limit block to rotate. The limit block unlocks the discharge valve.

7. The weighing device according to claim 6, characterized in that, The limiting block has a limiting point, the discharge valve has a locking groove, the limiting block has a locking end and an unlocking end, the power element drives the lever to abut the locking end, the limiting block rotates, the limiting point is limited in the locking groove, the power element drives the lever to abut the unlocking end, the limiting block rotates, and the limiting point disengages from the locking groove.

8. The weighing device according to claim 7, characterized in that, The locking end has a closing arc surface, the unlocking end has an opening arc surface, the lever has an unlocking arc surface, the power element drives the lever to abut against the closing arc surface, the limiting block rotates, the limiting point is limited within the locking groove, the power element drives the lever, the unlocking arc surface abuts against the opening arc surface, the limiting block rotates, and the limiting point disengages from the locking groove.

9. The weighing device according to claim 8, characterized in that, The lever also has a retaining arc surface that abuts against the opening arc surface to keep the limiting point disengaged from the locking groove.

10. A weighing method, characterized in that, The weighing method includes the weighing device as described in any one of claims 1-9, and the weighing method includes the following steps: Based on the weighing results of the weighing component and the required time, the feeding process of the feeding channel is divided into several stages; The drive module in each stage drives the compartment door to open to a different preset opening degree, and the vibration component opens to a different preset vibration amplitude.

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