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CN110395444B - Garlic grading and weighing method - Google Patents

Garlic grading and weighing method Download PDF

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Publication number
CN110395444B
CN110395444B CN201910820882.9A CN201910820882A CN110395444B CN 110395444 B CN110395444 B CN 110395444B CN 201910820882 A CN201910820882 A CN 201910820882A CN 110395444 B CN110395444 B CN 110395444B
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garlic
weighing
feeding
hopper
component
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CN110395444A (en
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孙良
童威
叶治政
周誉株
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B37/00—Supplying or feeding fluent-solid, plastic, or liquid material, or loose masses of small articles, to be packaged
    • B65B37/16—Separating measured quantities from supply
    • B65B37/18—Separating measured quantities from supply by weighing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Supply Of Fluid Materials To The Packaging Location (AREA)
  • Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Abstract

The invention discloses a grading and weighing method for garlic. The existing garlic weighing and screening are carried out manually, and the efficiency is low. The invention constructs a garlic grading and weighing mechanism; when the garlic reaches the cross-shaped bracket, the first stepping motor rotates, the garlic falls into the discharge hopper, and the n-1 discharge hoppers of the weighing assemblies synchronously fall into the garlic; weighing garlic weight by each weighing sensor, judging whether the weight sum of any k garlic meets the m +/-5 g range by the control chip, if so, overturning the corresponding stepping motor II towards the hopper to enable the garlic on the k discharging hoppers to fall into the hopper for collection, otherwise, overturning the stepping motors II of all weighing assemblies back to the hopper, and pouring out the garlic on all weighing assemblies; and (3) feeding the discharge hoppers of all the weighing assemblies by rotating the stepping motors of all the feeding assemblies, and judging whether the sum of the weight of k garlic meets the range of m +/-5 g again. The garlic weighing and screening device realizes automatic weighing of garlic, sorts the garlic into a group with a certain weight, and improves the garlic weighing and screening efficiency.

Description

Garlic grading weighing method
Technical Field
The invention belongs to the technical field of machinery, relates to weighing and screening of garlic, and particularly relates to a garlic grading weighing method.
Background
For a long time, the weighing and screening processes of garlic are manually carried out, so that the garlic weighing and screening process is time-consuming and labor-consuming, has extremely low efficiency and often has deviation. At present, a garlic grading and weighing mechanism is urgently needed to replace the manual garlic sorting and packaging. The common packaging machines on the market weigh and package small particles such as corn kernels, tea leaves and the like, and have no weighing and sorting mechanism for agricultural products with larger shapes such as whole garlic.
Disclosure of Invention
The invention aims to provide a garlic grading weighing method aiming at automatically weighing and sorting garlic into a group with a certain weight and keeping the error within the regulation.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention specifically comprises the following steps:
step one, constructing a garlic grading and weighing mechanism; the garlic grading and weighing mechanism comprises a feeding device and a grading and weighing device. The feeding device comprises a feeding hopper, a bottom plate and a feeding assembly; the bottom plate is fixed with the frame; a cylindrical feed hopper is fixed on the bottom plate; coaxially arranged at the feedThe bottom of the round table in the hopper is fixed with the bottom plate; the inner wall of the feed hopper is fixedly connected with the circular truncated cone through n inclined plates which are uniformly distributed along the circumferential direction, wherein the inclined plates are obliquely arranged, and n is more than or equal to 8; the bottom plate is provided with a feeding hole between every two adjacent inclined plates; a feeding component is arranged below each feeding hole and comprises a circular tube, a cross-shaped bracket and a first stepping motor; the top end of the circular tube is fixed on the bottom plate, and the bottom end of the circular tube is fixed with a hollow motor base; the top end of the round pipe is communicated with the feed inlet, and the bottom end of the round pipe is communicated with the motor base; the bottom end of the motor base is arranged in an open mode; a base of the stepping motor I is fixed on a motor base; an output shaft of the first stepping motor penetrates into the motor base and is fixed with a cross-shaped support arranged in the motor base. The grading weighing device comprises a hopper and a weighing component; the funnel is hollow and inverted round table-shaped; the hopper is fixed on the frame and is arranged right below the feed hopper; a weighing component is arranged below each feeding component of the feeding device, and each weighing component comprises a discharge hopper, a weighing sensor support frame, a second stepping motor and a support plate; the top of the weighing sensor support frame is fixed with a discharge hopper, and the bottom of the weighing sensor support frame is fixed with a weighing sensor; a base of the second stepping motor is fixed on the supporting plate, and an output shaft of the second stepping motor is fixed with the weighing sensor supporting frame; an output shaft of the second stepping motor is arranged along the tangential direction of the position of the hopper where the weighing component is located; the discharging hopper is higher than the hopper, and two inclined planes symmetrically arranged about an output shaft of the second stepping motor are arranged in the discharging hopper; all the supporting plates of the weighing components are fixed on the outer wall of the funnel. The first stepping motor of each feeding assembly and the second stepping motor of each weighing assembly are controlled by a control chip, and the signal output end of the weighing sensor of each weighing assembly is connected with the control chip. The control chip respectively numbers the n-1 weighing components as A1，A2，…，An-1。
And step two, after the garlic is poured into the feed hopper, the garlic enters between every two adjacent inclined plates along the circular table and then respectively enters into each round tube, and the diameter of each round tube can only contain one garlic, so that the garlic is linearly arranged in each round tube. When the garlic reaches the cross-shaped bracket along the circular tube, the garlic falls between two arms of the cross-shaped bracket; the first step motor rotates 90 degrees to drive the cross-shaped support to rotate 90 degrees, garlic on the cross-shaped support originally falls out due to gravity and falls into the discharge hopper, and a new garlic falls into the cross-shaped support at the same time, so that controllable single blanking of the garlic is realized. The stepping motors of the n-1 feeding assemblies are controlled by the control chip to synchronously rotate, so that the garlic falls into the discharge hoppers of the n-1 weighing assemblies synchronously.
Step three, after the garlic falls into the discharge hopper, weighing the weight of the garlic by each weighing sensor, and transmitting signals to the control chip; then, judging whether the sum of the weight of any k garlic satisfies the range of m +/-5 g according to the following process, wherein the value of m is 150, 200, 250 or 300:
(1) the control chip calculates A first1，A2，…，AkWeighing the garlic on the component, wherein k is m/50; if A is1，A2，…，AkThe weight sum of garlic on the weighing component satisfies the range of m +/-5 g, and the A is controlled1，A2，…，AkThe second stepping motor of the weighing component turns 30 degrees towards the hopper, so that garlic on the corresponding k discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing component for pouring out garlic, the control chip sends a signal to control a stepping motor of the corresponding feeding component to rotate 90 degrees, and a new garlic falls down; if the m + -5 g range is not satisfied, A iskThe garlic on the weighing component is changed into A in sequencek+1，Ak+2，…，An-1During the replacement process of the garlic on the weighing assemblies, as long as the weight sum of the garlic on the new k weighing assemblies meets the range of m +/-5 g, the replacement is stopped, the step motors of the corresponding k weighing assemblies are controlled to turn over towards the hopper by 30 degrees, so that the garlic on the corresponding k discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing component for pouring out garlic, the control chip sends a signal to control a stepping motor of the corresponding feeding component to rotate 90 degrees, and a new garlic falls down; if A iskOn the weighing assemblyThe garlic is changed to An-1After weighing the garlic on the component, if the sum of the weights of the garlic on the k weighing components still does not satisfy the range of m +/-5 g, the component A is replaced according to the following replacing process1，A2，…，AkGarlic of the weighing assembly is replaced: firstly, A is mixed1，A2，…，AkSequentially replacing garlic on the penultimate weighing component in the weighing components with garlic Ak+1，Ak+2，…，An-1Weighing garlic on the assembly, and then adding A1，A2，…，AkThe garlic on the last weighing component in the weighing components is changed into A in sequencek+1，Ak+2，…，An-1Weighing garlic on the assembly until A1，A2，…，AkIn the weighing assembly A1The garlic on the weighing component is changed into A in sequencek+1，Ak+2，…，An-1Weighing garlic on the assembly; in the replacement process, as long as the weight sum of the garlic on the new k weighing components meets the m +/-5 g range, the replacement is stopped, the step motors II of the corresponding k weighing components are controlled to turn over 30 degrees towards the hopper, so that the garlic on the corresponding k discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing assembly for pouring out garlic, the control chip sends a signal to control the stepping motor of the corresponding feeding assembly to rotate 90 degrees, and a new garlic falls down.
(2) If finally calculate to An-k，An-k+1，…，An-1If the sum of the garlic weights on the weighing components still does not meet the range of m +/-5 g, the control chip controls the two stepping motors of all the weighing components to turn over the hopper by 30 degrees in a back-to-back mode, and the garlic on all the weighing components is poured out; the second stepping motor is reset immediately after being turned over by 30 degrees back to the funnel; and (3) controlling the stepping motors of all the feeding assemblies to rotate 90 degrees by the control chip, blanking the discharge hoppers of all the weighing assemblies, and returning to the step (1).
Furthermore, the internal resistance of the weighing sensor changes after the weighing sensor is stressed, so that the voltage is changed; the control chip performs ADC conversion on the received analog voltage value to convert the analog voltage value into a digital voltage value, and the digital voltage value and the weight of the garlic are in a linear relation, so that the weight of the garlic is obtained.
Furthermore, when garlic on the k weighing components needs to be poured into the funnel, the control chip enables the stepping motors II of the weighing components to rotate from small to large according to the numbers at intervals of 0.5s, and the garlic is poured into the funnel one by one.
The invention has the following beneficial effects:
the garlic weighing and screening device realizes automatic weighing of garlic, sorts the garlic into a group with a certain weight, saves labor force in the garlic weighing and screening process, and improves efficiency.
Drawings
FIG. 1 is a perspective view of the garlic grading and weighing mechanism of the present invention;
FIG. 2 is a perspective view of the feeding device of the present invention;
FIG. 3 is a schematic view of a feed assembly of the present invention
FIG. 4 is a perspective view of the construction of the step weighing apparatus of the present invention;
FIG. 5 is a perspective view of the weighing assembly of the present invention;
FIG. 6 is a flow chart of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 6, the garlic grading and weighing method is as follows:
step one, constructing a garlic grading and weighing mechanism; the garlic grading and weighing mechanism comprises a feeding device 1 and a grading and weighing device 2.
As shown in fig. 1, 2 and 3, the feeding device 1 comprises a feed hopper support frame 4, a feed hopper 5, a bottom plate and a feeding assembly; the feed hopper supporting frame 4 is X-shaped and is fixed on the frame 3; the bottom plate is fixed on the feed hopper supporting frame 4; a cylindrical feed hopper 5 is fixed on the bottom plate; the bottom of a circular truncated cone coaxially arranged in the feed hopper 5 is fixed with the bottom plate, and the included angle between the generatrix of the circular truncated cone and the horizontal plane is 60 degrees; the inner wall of the feed hopper 5 is fixedly connected with the circular truncated cone through eleven inclined plates which are uniformly distributed along the circumferential direction and are obliquely arranged at 75 degrees; the bottom plate is provided with a feeding hole between every two adjacent inclined plates; a feeding component is arranged below each feeding hole and comprises a circular pipe, a cross-shaped bracket 6 and a first stepping motor 7; the circular tube is obliquely arranged at an angle of 60 degrees; the top end of the circular tube is fixed on the bottom plate, and the bottom end of the circular tube is fixed with a hollow motor base; the top end of the round pipe is communicated with the feed inlet, and the bottom end of the round pipe is communicated with the motor base; the bottom end of the motor base is arranged in an open mode; the base of the first stepping motor 7 is fixed on the motor base; an output shaft of the first stepping motor penetrates into the motor base and is fixed with a cross-shaped support 6 arranged in the motor base. The stepping motor rotates 90 degrees to drive the cross-shaped bracket 6 to rotate 90 degrees, thereby driving the garlic to fall one by one.
As shown in fig. 4 and 5, the graduated weighing device 2 comprises a hopper 8 and a weighing assembly; the funnel 8 is hollow and inverted round table-shaped; the hopper 8 is fixed on the frame 3 and is arranged right below the feed hopper 5; a weighing component is arranged below each feeding component of the feeding device 1 and comprises a discharge hopper 9, a weighing sensor 10, a weighing sensor support frame 11, a second stepping motor 12 and a support plate; the top of the weighing sensor support frame 11 is fixed with the discharge hopper 9, and the bottom is fixed with the weighing sensor 10; a base of the second stepping motor 12 is fixed on the supporting plate, and an output shaft of the second stepping motor 12 is fixed with the weighing sensor supporting frame 11; an output shaft of the second stepping motor 12 is arranged along the tangential direction of the position of the hopper 8 where the weighing component is located; the discharging hopper 9 is higher than the hopper 8, and two inclined planes symmetrically arranged about an output shaft of the second stepping motor 12 are arranged in the discharging hopper 9; all the supporting plates of the weighing components are fixed on the outer wall of the funnel 8; the funnel is used for collecting the screened garlic.
The first stepping motor 7 of each feeding assembly and the second stepping motor 12 of each weighing assembly are controlled by a control chip, and the signal output end of the weighing sensor of each weighing assembly is connected with the control chip. The ten weighing components are respectively numbered by the control chip as A1、A2、A3、A4、A5、A6、A7、A8、A9And A10。
And step two, after the garlic is poured into the feed hopper, the garlic enters between every two adjacent inclined plates along the circular table and then enters 10 circular tubes respectively, and the diameter of each circular tube can only contain one garlic, so that the garlic is linearly arranged in each circular tube. When the garlic reaches the cross-shaped bracket along the circular tube, the garlic falls between two arms of the cross-shaped bracket; the first step motor rotates 90 degrees to drive the cross-shaped support to rotate 90 degrees, garlic on the cross-shaped support originally falls out due to gravity and falls into the discharge hopper, and a new garlic falls into the cross-shaped support at the same time, so that controllable single blanking of the garlic is realized. The first stepping motors of the ten feeding assemblies are controlled by a control chip (the embodiment adopts an STM32 single chip microcomputer) to synchronously rotate, so that garlic can synchronously fall into the discharge hoppers of the ten weighing assemblies.
Step three, after the garlic falls into the discharge hopper, weighing the weight of the garlic by each weighing sensor, and transmitting signals to the control chip; the weighing sensor is subjected to pressure, and then the internal resistance changes, so that the voltage is changed; the control chip performs ADC conversion on the received analog voltage value to convert the analog voltage value into a digital voltage value, and the digital voltage value and the weight of the garlic are in a linear relation, so that the weight of the garlic is obtained. Then, whether the weight sum of any six garlic meets the range of 300 +/-5 g is judged according to the following process:
(1) the control chip calculates A first1、A2、A3、A4、A5、A6Weighing garlic on the component, and controlling A if the weight sum of garlic on the weighing component meets the range of 300 +/-5 g1、A2、A3、A4、A5、A6The second stepping motor of the weighing component turns 30 degrees towards the hopper, garlic on the corresponding six discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing component for pouring out garlic, the control chip sends a signal to control a stepping motor of the corresponding feeding component to rotate 90 degrees, and a new garlic falls down; if the weight of garlic does not meet the range of 300 +/-5 g, the garlic on the last weighing assembly is sequentially replaced by A7、A8、A9Or A10During the replacement of the garlic on the weighing components, as long as the weight sum of the garlic on the new six weighing components meets the range of 300 +/-5 g, the replacement is stopped, and the corresponding six weighing components are controlledThe second stepping motor of the weighing component turns 30 degrees towards the hopper, garlic on the corresponding six discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing component for pouring out garlic, the control chip sends a signal to control a stepping motor of the corresponding feeding component to rotate 90 degrees, and a new garlic falls down; if the garlic on the last weighing assembly is replaced by A10After weighing the garlic on the components, if the sum of the weights of the garlic on the six weighing components still does not meet the range of 300 +/-5 g, the garlic A is replaced according to the following replacing process1、A2、A3、A4、A5、A6Garlic of the weighing assembly is replaced: firstly, A is mixed1、A2、A3、A4、A5、A6The penultimate weighing component in the weighing components (A)5Weighing component) to be replaced by A8、A9Or A10Weighing garlic on the assembly, and then adding A1、A2、A3、A4、A5、A6The third last weighing component of the weighing components (A)5Weighing component) to be replaced by A8、A9Or A10Weighing garlic on the assembly until A1、A2、A3、A4、A5、A6The first weighing component (A) in the weighing component1Weighing component) to be replaced by A8、A9Or A10Weighing garlic on the assembly; in the replacement process, as long as the weight sum of the garlic on the new six weighing assemblies meets the range of 300 +/-5 g, the replacement is stopped, the step motors II of the corresponding six weighing assemblies are controlled to turn over 30 degrees towards the hopper, so that the garlic on the corresponding six discharging hoppers falls into the hopper, and then the garlic is collected at the bottom of the hopper; the second stepping motor resets immediately after turning 30 degrees towards the funnel; for each weighing assembly for pouring out garlic, the control chip sends a signal to control the stepping motor of the corresponding feeding assembly to rotate 90 degrees, and a new garlic falls down.
When the garlic on the six weighing components needs to be poured into the funnel, in order to prevent the garlic from blocking a discharge hole of the funnel when the garlic is poured into the funnel, the control chip enables the second stepping motors of the weighing components to rotate from small to large according to the numbers at intervals of 0.5s, and the garlic is poured into the funnel one by one.
(2) If finally calculate to A5，A6，A7，A8，A9，A10If the sum of the garlic weights on the weighing components still does not meet the range of 300 +/-5 g, the control chip controls the two stepping motors of all the weighing components to turn over 30 degrees back to the hopper, and the garlic on all the weighing components is poured out; the second stepping motor is reset immediately after being turned over by 30 degrees back to the funnel; and (3) controlling the stepping motors of all the feeding assemblies to rotate 90 degrees by the control chip, blanking the discharge hoppers of all the weighing assemblies, and returning to the step (1).

Claims (3)

1.大蒜分级称重方法，其特征在于：该方法具体如下：1. garlic classification weighing method, is characterized in that: the method is specifically as follows: 步骤一、构建大蒜分级称重机构；所述的大蒜分级称重机构包括送料装置和分级称重装置；所述的送料装置包括进料斗、底板和送料组件；所述的底板与框架固定；呈圆筒状的进料斗固定在底板上；同轴设置在进料斗内的圆台底部与底板固定；所述进料斗的内壁与圆台通过沿周向均布的n块倾斜设置的斜板固定连接，n≥8；底板在每相邻两块斜板之间位置均开设有进料口；每个进料口下方设有一个送料组件，所述的送料组件包括圆管、十字型支架和步进电机一；所述圆管的顶端固定在底板上，底端固定有空心的电机座；圆管顶端与进料口连通，底端与电机座连通；所述电机座的底端开放设置；步进电机一的底座固定在电机座上；步进电机一的输出轴穿入电机座内，并与设置在电机座内的十字型支架固定；所述的分级称重装置包括漏斗和称重组件；所述的漏斗呈中空且倒置的圆台形；漏斗固定在框架上，并设置在进料斗正下方；送料装置的每个送料组件下方均设有称重组件，所述的称重组件包括放料斗、称重传感器、称重传感器支撑架、步进电机二和支撑板；所述的称重传感器支撑架顶部固定放料斗，底部固定称重传感器；步进电机二的底座固定在支撑板上，步进电机二的输出轴与称重传感器支撑架固定；步进电机二的输出轴沿称重组件所在漏斗位置的切线方向布置；放料斗高于漏斗设置，且放料斗内设有关于步进电机二的输出轴对称设置的两个斜面；所有称重组件的支撑板均固定在漏斗外壁上；各送料组件的步进电机一以及各称重组件的步进电机二均由控制芯片控制，各称重组件的称重传感器信号输出端均与控制芯片连接；控制芯片将n个称重组件分别编号为A1，A2，…，An；Step 1, constructing a garlic grading and weighing mechanism; the garlic grading and weighing mechanism includes a feeding device and a grading weighing device; the feeding device includes a feeding hopper, a bottom plate and a feeding assembly; the bottom plate and the frame are fixed; The cylindrical feeding hopper is fixed on the bottom plate; the bottom of the circular platform coaxially arranged in the feeding hopper is fixed to the bottom plate; the inner wall of the feeding hopper and the circular platform are fixed by n inclined plates arranged uniformly along the circumferential direction. connection, n≥8; the bottom plate is provided with a feeding port between each adjacent two inclined plates; a feeding assembly is arranged below each feeding port, and the feeding assembly includes a round tube, a cross-shaped bracket and a Stepping motor 1; the top end of the circular tube is fixed on the bottom plate, and the bottom end is fixed with a hollow motor seat; the top end of the circular tube is communicated with the feeding port, and the bottom end is communicated with the motor seat; the bottom end of the motor seat is open and arranged The base of the stepping motor one is fixed on the motor base; the output shaft of the stepping motor one penetrates into the motor base and is fixed with the cross-shaped bracket arranged in the motor base; the grading weighing device includes a funnel and a scale heavy component; the funnel is in the shape of a hollow and inverted truncated cone; the funnel is fixed on the frame and is arranged directly below the feeding hopper; a weighing component is arranged under each feeding component of the feeding device, and the weighing component is The parts include a discharge hopper, a load cell, a load cell support frame, a second stepper motor and a support plate; the load cell support frame is fixed with a discharge hopper at the top and a load sensor at the bottom; the base of the second step motor is fixed on the On the support plate, the output shaft of the second stepping motor is fixed with the support frame of the load cell; the output shaft of the second stepping motor is arranged along the tangential direction of the hopper where the weighing component is located; There are two inclined planes symmetrically arranged with respect to the output axis of the second stepping motor; the support plates of all weighing components are fixed on the outer wall of the funnel; the first stepping motor of each feeding component and the second stepping motor of each weighing component are The control chip is controlled, and the signal output terminals of the weighing sensors of each weighing component are connected to the control chip; the control chip numbers the n weighing components as A 1 , A 2 , . . . , An ; 步骤二、大蒜被倒入进料斗之后，顺着圆台进入各相邻斜板之间，然后分别进入个圆管，圆管直径只能容纳一个大蒜，因此，大蒜在圆管内呈直线排列；当大蒜顺着圆管到达十字型支架处时，落入十字型支架的其中两个臂之间；步进电机一转动90°，带动十字型支架转动90°，原来在十字型支架上的大蒜由于重力掉出，落入放料斗，同时新的一个大蒜落入十字型支架，从而实现大蒜可控制的单个落料；n个送料组件的步进电机一由控制芯片控制同步转动，因此n个称重组件的放料斗上会同步落入大蒜；Step 2. After the garlic is poured into the feeding hopper, it enters between the adjacent inclined plates along the round table, and then enters a round tube respectively. The diameter of the round tube can only accommodate one garlic, so the garlic is arranged in a straight line in the round tube; When the garlic reaches the cross-shaped bracket along the round tube, it falls between the two arms of the cross-shaped bracket; as soon as the stepping motor rotates 90°, it drives the cross-shaped bracket to rotate 90°, and the garlic originally on the cross-shaped bracket Due to gravity, it falls out into the hopper, and at the same time, a new garlic falls into the cross-shaped bracket, so as to realize a single controllable blanking of garlic; the stepping motors of n feeding components are controlled by the control chip to rotate synchronously, so n Garlic will fall into the hopper of the weighing component synchronously; 步骤三、当大蒜落入放料斗之后，各称重传感器称出大蒜的重量，且均将信号传给控制芯片；然后，按照以下过程判断任意k个大蒜的重量和是否满足m±5g范围，m取值为150、200、250或300：Step 3. After the garlic falls into the hopper, each weighing sensor weighs the garlic and transmits the signal to the control chip; then, according to the following process, determine whether the weight of any k garlic meets the m±5g range, m takes the value 150, 200, 250 or 300: （1）控制芯片先计算A1，A2，…，Ak称重组件上大蒜的重量和，k=m/50；如果A1，A2，…，Ak称重组件上大蒜的重量和满足m±5g范围，便控制A1，A2，…，Ak称重组件的步进电机二朝向漏斗翻转30°，使对应的k个放料斗上的大蒜落入漏斗内，然后在漏斗底部对大蒜进行收集；步进电机二朝向漏斗翻转30°后即刻复位；对于倒出大蒜的每个称重组件，控制芯片发出信号控制相对应送料组件的步进电机一转动90°，落下新的一个大蒜；如果不满足m±5g范围，将Ak称重组件上的大蒜依次更换成Ak+1，Ak+2，…，An称重组件上的大蒜，更换过程中，只要新的k个称重组件上大蒜的重量和满足m±5g范围，便停止更换，控制对应的k个称重组件的步进电机二朝向漏斗翻转30°，使对应的k个放料斗上的大蒜落入漏斗内，然后在漏斗底部对大蒜进行收集；步进电机二朝向漏斗翻转30°后即刻复位；对于倒出大蒜的每个称重组件，控制芯片发出信号控制相对应送料组件的步进电机一转动90°，落下新的一个大蒜；如果Ak称重组件上的大蒜被更换成An称重组件上的大蒜后，k个称重组件上大蒜的重量和仍不满足m±5g范围，则按照下述更换过程将A1，A2，…，Ak称重组件的大蒜进行更换：首先，将A1，A2，…，Ak称重组件中倒数第二个称重组件上的大蒜依次更换成Ak+1，Ak+2，…，An称重组件上的大蒜，然后将A1，A2，…，Ak称重组件中倒数第三个称重组件上的大蒜依次更换成Ak+1，Ak+2，…，An称重组件上的大蒜，一直到将A1，A2，…，Ak称重组件中A1称重组件上的大蒜依次更换成Ak+1，Ak+2，…，An称重组件上的大蒜；更换过程中，只要新的k个称重组件上大蒜的重量和满足m±5g范围，便停止更换，控制对应的k个称重组件的步进电机二朝向漏斗翻转30°，使对应的k个放料斗上的大蒜落入漏斗内，然后在漏斗底部对大蒜进行收集；步进电机二朝向漏斗翻转30°后即刻复位；对于倒出大蒜的每个称重组件，控制芯片发出信号控制相对应送料组件的步进电机一转动90°，落下新的一个大蒜；(1) The control chip first calculates the weight sum of garlic on A 1 , A 2 , ..., A k weighing component, k=m/50; if A 1 , A 2 , ..., A k weighing component weighs the garlic on the component and meet the range of m±5g, then control the stepper motor 2 of A 1 , A 2 , ..., A k weighing component to turn 30° toward the funnel, so that the garlic on the corresponding k hoppers falls into the funnel, and then in Garlic is collected at the bottom of the funnel; the second stepper motor is reset immediately after turning 30° toward the funnel; for each weighing component that pours out garlic, the control chip sends a signal to control the stepper motor of the corresponding feeding component to rotate 90° and fall down A new garlic; if it does not meet the m±5g range, replace the garlic on the A k weighing component with the garlic on the A k+1 , A k+2 , ..., A n weighing components in turn. During the replacement process, As long as the weight of garlic on the new k weighing components meets the range of m±5g, the replacement is stopped, and the stepper motor 2 of the corresponding k weighing components is controlled to turn 30° toward the hopper, so that the corresponding k hoppers are placed on the hopper. The garlic falls into the funnel, and then the garlic is collected at the bottom of the funnel; the second stepper motor is reset immediately after turning 30° toward the funnel; for each weighing component that pours out the garlic, the control chip sends a signal to control the corresponding feeding component. As soon as the stepping motor rotates 90°, a new garlic falls; if the garlic on the A k weighing component is replaced with the garlic on the An weighing component, the weight sum of the garlic on the k weighing components still does not satisfy m Within the range of ± 5g , replace the garlic of A 1 , A 2 , . The garlic on the weighing assembly is replaced with A k + 1 , A k+2 , ..., An on the weighing assembly in turn, and then the A 1 , A 2 , ..., A k weighing assembly is the third from the last The garlic on the weighing assembly is replaced by A k + 1 , A k+2 , ..., An on the weighing assembly in turn, until A 1 in the A 1 , A 2 , ..., A k weighing assembly is weighed The garlic on the heavy component is replaced with A k + 1 , A k+2 , ... , An range, stop the replacement, and control the stepping motor two of the corresponding k weighing components to turn 30° toward the funnel, so that the garlic on the corresponding k hoppers falls into the funnel, and then collect the garlic at the bottom of the funnel; step The second feeding motor is reset immediately after turning 30° toward the funnel; for each weighing component that pours out the garlic, the control chip sends a signal to control the stepping motor of the corresponding feeding component to rotate 90° and drop a new garlic; （2）若最后计算到An-k，An-k+1，…，An称重组件上的大蒜重量和仍然不满足m±5g范围，则控制芯片控制所有称重组件的步进电机二背向漏斗翻转30°，倒出所有称重组件上的大蒜；步进电机二背向漏斗翻转30°后即刻复位；之后控制芯片控制所有送料组件的步进电机一转动90°，给所有称重组件的放料斗落料，回到步骤（1）。(2) If the sum of garlic weights on the weighing components of Ank , An -k+1 , ..., An still does not meet the range of m±5g, the control chip controls the stepper motor two of all weighing components. Turn back to the funnel by 30°, and pour out the garlic on all weighing components; the second stepper motor will reset immediately after turning its back to the funnel by 30°; after that, the control chip controls the stepper motor of all feeding components to rotate 90°, giving all weighing Unload the hopper of the heavy component and go back to step (1). 2.根据权利要求1所述的大蒜分级称重方法，其特征在于：称重传感器受到压力后内部电阻大小发生变化，进而改变电压；控制芯片将接收到的模拟电压值进行ADC转换，转换为数字电压值，数字电压值与大蒜重量为线性关系，从而得到大蒜重量。2. garlic grading weighing method according to claim 1 is characterized in that: after the load cell is subjected to pressure, internal resistance changes, and then changes the voltage; the analog voltage value received by the control chip is converted by ADC, converted into Digital voltage value, the digital voltage value has a linear relationship with the weight of garlic, so as to obtain the weight of garlic. 3.根据权利要求1所述的大蒜分级称重方法，其特征在于：k个称重组件上的大蒜需要倒入漏斗时，控制芯片按照0.5s的间隔使各称重组件的步进电机二按照编号从小到大依次转动，将大蒜一个一个倒入漏斗。3. garlic classification weighing method according to claim 1 is characterized in that: when garlic on k weighing assemblies needs to be poured into the funnel, the control chip makes the stepper motor two of each weighing assembly according to the interval of 0.5s. Rotate in order from small to large, and pour the garlic into the funnel one by one.
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