CN114264359A

CN114264359A - Precise weighing automatic sorting production process

Info

Publication number: CN114264359A
Application number: CN202111347878.9A
Authority: CN
Inventors: 钟华帅; 徐尧良; 梁江锋; 章权; 阮松超
Original assignee: Zhejiang Taishan Heavy Machinery Co ltd
Current assignee: Zhejiang Taishan Heavy Machinery Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-04-01
Anticipated expiration: 2041-11-15

Abstract

The invention discloses a precise weighing automatic sorting production process, which comprises the following steps: A. putting the product to a cleaning station to clean the product; B. after the product is cleaned, the product is sent into a product flow channel by a vibrating disc; C. the product falls to a precise damping weighing device from a product runner and is then weighed; D. performing first-step buffering on the product through a buffering device; E. carrying out buoyancy damping on the product through a water pressure buoyancy damping device; F. the materials are sent into corresponding grading packaging bags in a grading way; by arranging the spring damping device, the supporting plate is buffered by the damping of the mechanical spring, so that the supporting plate is prevented from vibrating by a product above the supporting plate, and the weighing speed and the weighing stability are increased; the water pressure buoyancy damping device is arranged, the supporting disc can descend and ascend more slowly through water pressure buoyancy damping, reciprocating motion caused by shock absorption is avoided, and therefore the supporting disc can be better stopped stably and quickly to weigh.

Description

Precise weighing automatic sorting production process

Technical Field

The invention belongs to the technical field of electronic weighing, and particularly relates to a precise weighing automatic sorting production process.

Background

Because of this product weight stepping requires highly, the electronic scale that uses of weighing receives vibration influence and air convection influence very big, can lead to weighing inaccurately because the product must shake and the vibrations of weighing electronic scale.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a precise weighing automatic sorting production process which is characterized in that two vibration reduction mechanisms are additionally arranged at the weighing process, one vibration reduction mechanism is a mechanical spring vibration reduction mechanism, the other vibration reduction mechanism is a water pressure buoyancy vibration reduction mechanism, the weighing effect is obviously improved after the vibration reduction is increased, meanwhile, two negative pressure devices are respectively added before a product enters a weighing mechanism and after the product is weighed, the product is firstly sent into a negative pressure cabin, evacuated and then enters the weighing mechanism, the emptied negative pressure cabin is filled with the product, the weighed product is sent into an output negative pressure cabin, and the product is sent into corresponding grading packaging bags in a grading manner, so that the whole process is finished.

In order to achieve the purpose, the invention adopts the following technical scheme: a precise weighing automatic sorting production process comprises the following steps:

weighing and sorting the batteries through a precise weighing and automatic sorting production line; the weighing automatic sorting production line comprises a cleaning station, a conveying station, a weighing station and a grading station; the method comprises the following steps: A. putting the product to a cleaning station to clean the product; B. after the product is cleaned, the product is sent into a product flow channel by a vibrating disc; C. the product falls to a precise damping weighing device from a product runner and is then weighed; the precise damping weighing device comprises an electronic scale shell, a control plate arranged on the side face of the electronic scale shell, a supporting plate arranged above the electronic scale shell and used for containing a product, a weighing device arranged in the electronic scale shell and used for detecting weight, a supporter arranged above the weighing device, a water cavity arranged in the supporter, a buffer device connected to the supporting plate, a hydraulic pressure buoyancy damping device arranged in the water cavity and connected to the supporting plate, a spring damping device arranged above the supporter and connected to the supporting plate, and a dismounting device connected to the supporting plate and used for buffering; the method comprises the following specific steps: the product is conveyed above the supporting disc, then the supporting disc moves downwards under the action of gravity, and then the supporting disc is damped under the action of the dismounting device, so that the vibration of the supporting disc and the vibration of the product are reduced, and the product is better weighed; D. performing first-step buffering on the product through a buffering device; the supporting plate comprises a first cavity arranged on the supporting plate, a buffer plate arranged in the first cavity in a sliding manner, and a vent hole arranged on the supporting plate and communicated with the first cavity; the buffer device comprises a connecting block which is connected with the supporting disc in a sliding manner and matched with the vent hole, a first vent pipe fixedly connected with the connecting block, a first sliding ring arranged below the first vent pipe, a pressure control assembly arranged below the first sliding ring, a first cylindrical groove and a second cylindrical groove which are arranged on the support, a second vent pipe connected with the second cylindrical groove, and a driving plate connected with the second vent pipe and the supporting disc; the joint of the second vent pipe and the driving plate can be stretched; the second cylindrical groove is positioned below the first cylindrical groove; the diameter of the second cylindrical groove is larger than that of the first cylindrical groove; the specific steps are that the product falls on the buffer plate, then the buffer plate can move downwards, so that the gas in the first cavity can be compressed, then the buffer plate moves downwards to buffer the product, then the buffer plate moves to the first cavity and then drives the supporting disc to move downwards, then the supporting disc can drive the connecting block to move downwards, then the first vent pipe can stretch and contract, then the first vent pipe is compressed and then drives the first sliding ring to move downwards, then the gas in the first cylindrical groove can be compressed and conveyed into the first cavity from the first vent pipe, so that the gas in the first cavity can be increased, so that the buffer plate can be reset slowly, the pressure control component is driven to move by the pressure control component, then the gas in the second cylindrical groove can be conveyed into the second vent pipe, and then the second vent pipe can push the driving plate to move, the driving plate can drive the supporting plate to move for a certain distance towards the side surface to buffer the product; E. carrying out buoyancy damping on the product through a water pressure buoyancy damping device; the hydraulic buoyancy damping device comprises a floating plate arranged in a water cavity in a sliding manner, a connecting rod fixedly arranged in the floating plate and fixedly connected to a supporting plate, a plurality of through holes arranged on the floating plate, a fourth spring arranged below the floating plate, a fixing plate fixedly arranged on the water cavity and supporting the fourth spring, a second cavity arranged in the water cavity and communicated with a second cylindrical groove, and a pressure plate arranged in the second cavity in a sliding manner; the method comprises the following specific steps: the supporting disc is moved downwards by gravity to enable the floating plate to move downwards, then the floating plate is soaked in water and is damped by buoyancy of the water and shock absorption of the water, then the pressure control assembly moves downwards to enable gas in the second cylindrical groove to be compressed, the gas in the second cylindrical groove is compressed to drive the driving plate to move, meanwhile, the inside of the second cylindrical groove is enabled to be in a high-pressure state, and therefore the pressure plate can push the water in the water cavity under the action of the pressure, namely, the water surface can rise; F. and sending the materials into corresponding grading packaging bags in a grading manner.

The invention mainly uses the dismounting device to perform normal mechanical shock absorption, then buffers the product through the supporting disk and the buffer device, so that the product can better stop shock, namely the product falls on the buffer plate, the buffer plate moves downwards, namely the buffer plate moves downwards along with the product, then the first cavity is compressed, the resistance of the buffer plate moving downwards is increased, thereby the product moving downwards is decelerated, then the buffer plate and the product move downwards together, the product falling on the buffer plate can be prevented from bouncing, thereby the product can be better ensured not bouncing, better weighing is performed, then the product is decelerated, namely the kinetic energy of the product is reduced, thereby the mechanical energy of the product is reduced, the energy of the product vibrating is reduced, the shock absorption effect is further increased, and then the supporting disk moves downwards, the kinetic energy of the product is better converted into the elastic potential energy of the dismounting device, then the product is further prevented from bouncing, then the downward movement of the supporting disc can enable the buffer plate to move upwards for a certain distance, so that the descending speed of the product is further reduced, then the kinetic energy of the product is further reduced, so that the product and the buffer plate can be better kept consistent with the movement trend of the supporting disc, and therefore the product is damped, then the supporting disc can be reset due to the fact that the supporting disc moves downwards to generate the elastic potential energy, the downward movement of the supporting disc can also enable the second vent pipe and the driving plate to push the supporting disc to move sideward, so that the supporting disc can move sideward while moving downwards, and therefore the supporting disc can move towards the direction of the inclined plane, and the kinetic energy of the downward movement of the product is converted into the kinetic energy of the downward movement and the kinetic energy of the sideward movement, then the kinetic energy of the downward movement can be buffered, then the kinetic energy of the sideward movement can be consumed under the action of friction force, so that the mechanical energy of the product can be reduced, namely the mechanical energy is gradually converted into elastic potential energy of the supporting disk which bounces upwards from the beginning, then the kinetic energy of the product is further reduced through mutual offset of the friction force and the kinetic energy, so that the elastic potential energy of the supporting disk which bounces upwards can be reduced, thereby better preventing the supporting disk from moving upwards to cause the product to be separated from the buffer plate and further generate vibration again, when the supporting disk moves downwards, the floating plate can be driven to move downwards under the action of the connecting rod, then the floating plate can be subjected to the downward resistance by the buoyancy of water, then the supporting disk can be decelerated more obviously downwards, and then the supporting disk is prevented from being too fast, the supporting disc stops to lead to the product to move downwards, but the buffer plate cannot move downwards to avoid the phenomenon that the product bounces again, then the supporting disc moves downwards to enable the pressure plate to receive thrust through the pressure control assembly, so that the liquid level in the water cavity can rise, then the buoyancy force borne by the floating plate can be increased, then the deceleration effect of water on the floating plate can be further increased, namely the deceleration effect of the supporting disc can be further increased, then the supporting disc can be better enabled to slowly fall to the lowest part, and therefore the product can be better ensured not to bounce again; after the supporting disc moves to the lowest position, the supporting disc moves upwards, then the floating plate moves upwards, when the floating plate moves upwards, the floating plate is provided with holes, so that the upper side and the lower side of the floating plate are provided with water, then the floating plate moves upwards, the moving speed of the floating plate is reduced under the action of the water above the floating plate, so that the floating plate can move upwards more slowly, when the supporting disc moves downwards from slow to slow and upwards moves slowly, the direction can be changed more stably, the phenomenon that the product bounces again due to too large difference of front and rear speeds when the direction is changed is avoided, the product is better buffered, the product can be more quickly damped after being placed on the supporting disc and loses vibration, when the supporting disc is reset again, the supporting disc can be more quickly kept still, heavy accuracy cannot be influenced by up-and-down shaking, so that subsequent sorting effect can be better.

Further, the area above the through hole is smaller than the area below the through hole; namely, the through hole is arranged in an inverted cone shape; a tension spring is fixedly arranged below the through hole; a water flow speed reducing plate is fixedly arranged below the tension spring; when the kickboard downstream, because the existence of rivers air brake can make rivers reduce to the passageway volume of kickboard top, thereby just also can make rivers air brake stop water, make rivers air brake have the trend that prevents the upward movement of water, thereby it is better to the speed reduction effect of kickboard when making kickboard downstream, later kickboard upward movement also can be because of conical existence, lead to the speed reduction that water flows to the below from the top, thereby can make the water can carry out the speed reduction of upward movement to the kickboard by the longer time in the top of kickboard, thereby can be better make the kickboard can the rapid stop.

Furthermore, the spring damping device comprises a second telescopic rod fixedly arranged above the support, fourth sliding blocks fixedly arranged on two sides of the second telescopic rod, an arc-shaped fixture block fixedly arranged on the fourth sliding block, a clamping plate arranged above the fourth sliding block and matched with the arc-shaped fixture block, a third telescopic rod fixedly arranged below the clamping plate and used for guiding the clamping plate, a third connecting rod hinged to the fourth sliding block and the support plate, a pressing plate arranged above the clamping plate, a compression spring fixedly arranged below the pressing plate and fixedly connected to the clamping plate, and a tightening assembly connected to the pressing plate; the clamping assembly comprises a fourth telescopic rod which is fixedly arranged between the pressing plate and the support and used for guiding the pressing plate; the method comprises the following specific steps: the downward movement of the supporting disc can drive the fourth sliding block to move in the opposite direction through the third connecting rod, then the second telescopic rod guides the movement of the fourth sliding block, the arc-shaped fixture block is located at a position matched with the clamping plate when the fourth sliding block moves, then the clamping plate bears the pressure of the compression spring and can give certain pressure to the arc-shaped fixture block downwards, and then the arc-shaped fixture block can reduce the movement speed under the action of the clamping plate when moving, so that the movement speed of the supporting disc when moving downwards is further reduced;

furthermore, the clamping assembly further comprises a lifting plate arranged on the fourth telescopic rod in a sliding manner, a sliding frame arranged above the support in a sliding manner, a fourth connecting rod hinged to the sliding frame and the lifting plate, a return spring fixedly arranged between the two sliding frames and used for enabling the sliding frame to reset, and a second spring fixedly arranged between the lifting plate and the pressing plate; when the fourth sliding block moves in the opposite direction, the fourth sliding block moves to the position of the sliding frame and then impacts the sliding frame, so that the sliding frame moves in the opposite direction, the sliding frame drives the lifting plate to move downwards through the fourth connecting rod, and then the lifting plate pulls one end of the second spring to move downwards;

that is to say the second spring is stretched, later the second spring can drive the clamp plate one end distance of downstream, later can make compression spring compressed, later can lead to compression spring to apply the power increase for the cardboard, later also when having realized the fourth sliding block motion, the beginning has received than little resistance, later along with the increase of fourth sliding block motion distance, can reduce through the clamp plate position, make the cardboard prevent that the arc fixture block carries out the resistance increase of moving, thereby can make the speed of fourth sliding block motion reduce gradually, later also can make the speed of supporting disk downstream further increase the effect that reduces gradually, thereby better messenger's supporting disk slows down, from faster can making the supporting disk stop, thereby also when weighing, the supporting disk is in quiescently, increase the accuracy of weighing.

Further, the pressure control assembly comprises a second sliding ring arranged in the second cylindrical groove in a sliding manner, a guide rod arranged in the second sliding ring in a sliding manner, a sealing plate fixedly arranged below the guide rod, a fourth expansion plate and a third spring fixedly arranged between the second sliding ring and the sealing plate, and a sealing ring fixedly arranged on the outer side of the fourth expansion plate and abutted against the lower surface of the second sliding ring; the first sliding ring is connected with the first cylindrical groove in a sliding mode; magnets are arranged on the guide rod and the first sliding ring; the method comprises the following specific steps: the first sliding ring moves downwards to press the guide rod, then the guide rod is driven to move downwards, then the sealing plate and the sealing ring can move downwards, so that the sealing ring and the sealing plate can not seal the second sliding ring any more, then the second cylindrical groove is communicated with the first cylindrical groove, then gas in the second cylindrical groove is compressed, and then when the supporting disc is reset, the guide rod can be reset under the driving of the magnet on the first sliding ring and the second sliding ring is reset through the same movement principle as the above;

thereby just namely only can make the second cylinder groove compress after the supporting disk downstream reaches a certain distance, gas in the second cylinder groove later just can promote the supporting disk and move and promote the pressure plate and move, thereby also can make the supporting disk downstream, the normal speed reduction effect is in the beginning, later along with descending distance increases gradually, can make the effect of slowing down carry out gradual increase, thereby also can make the supporting disk can rely on the speed that is slower to move to the below, thereby can be better slow down the product, also be better prevent the product rebound, thereby better weigh the product.

Furthermore, the dismounting device comprises a sliding cavity arranged in the support, a first support plate arranged in the sliding cavity in a sliding mode, a first spring fixedly arranged above the first support plate, a second support plate fixedly arranged above the first spring and connected to the support plate in a sliding mode for supporting the support plate, a first telescopic rod arranged between the second support plate and the first support plate and used for cushioning the support plate, a pull rod arranged on the side face of the control plate, a lifting assembly connected to the pull rod and the first support plate, and a support assembly connected to the lifting assembly; the method comprises the following specific steps: the sliding connection of the second support plate and the support plate can enable the support plate to move horizontally, then the first telescopic rod absorbs the shock of the support plate, and the first telescopic rod can age along with the increase of the service time, so the first telescopic rod needs to be replaced, particularly, the replacement mainly comprises that a worker pulls the pull rod to the side, the pull rod is far away from the shell of the electronic scale, then the pull rod drives the first support plate to move downwards through the lifting assembly, then the pull rod can drive the support assembly to move upwards, thus the second support plate can not support the support plate any more due to the downward movement of the first support plate, then the support plate can move downwards, then the support plate moving downwards can be supported due to the upward movement of the support assembly, and the support plate is driven to move upwards, so the original position of the support plate can be restored, and the position of the support plate can not be changed, but the first supporting plate is moved downward, that is, the first spring and the first telescopic rod are moved downward, and then a space for detaching the first telescopic rod is increased, so that the first telescopic rod is conveniently detached.

Furthermore, the lifting assembly comprises a driving groove arranged on the pull rod, a lifting rod arranged in the driving groove in a sliding manner, two first connecting rods hinged to the lifting rod, and a first sliding block hinged to the two first connecting rods and arranged on the bottom surface of the sliding cavity in a sliding manner; the first connecting rods are multiple and hinged with each other to form the shape of a plurality of scissors; the support assembly comprises a second connecting rod hinged to the pull rod, a second sliding block hinged to the second connecting rod and arranged on the side face of the sliding cavity in a sliding mode, a third supporting plate fixedly connected to the second sliding block, a fourth supporting plate fixedly arranged above the third supporting plate, a conveying belt arranged on the fourth supporting plate, a gear fixedly connected to a shaft body driving the conveying belt to move, a rack fixedly arranged on the side face of the sliding cavity and meshed with the gear, a third sliding block fixedly arranged on the conveying belt, and a support column fixedly arranged above the third sliding block and used for supporting the support disc; the conveying belt is the prior art and is not explained; the method comprises the following specific steps: when the pull rod is pulled to move, the second connecting rod is driven to move, then the second connecting rod drives the second sliding block to move upwards, the second sliding block drives the fourth supporting plate to move upwards, so that the conveying belt can move upwards, the gear can move upwards when the conveying belt moves upwards, then the gear can be meshed with the rack, so that the gear can drive the conveying belt to convey, so that the third sliding block can move upwards under the action of the conveying belt when the third sliding block moves upwards along with the fourth supporting plate, so that the distance of the upward movement of the third sliding block is increased, then the distance of the upward movement of the supporting column is larger than that of the upward movement of the fourth supporting plate, so that the height of the supporting disc supported by the supporting column is increased, the space between the telescopic rod and the supporting device can be larger, and the first supporting disc can be more conveniently detached, and the first spring will disengage from the support plate so that there is no restriction above the first spring, further increasing the ease of disassembly.

Further, a ring groove is arranged above the first supporting plate; the ring groove is used for clamping the first spring; thereby just need take out first spring from the annular when dismantling first spring, later manually open the control panel, can be better take out first spring from the electronic scale shell to further reduced the dismantlement degree of difficulty, through dismantling convenient can be better guarantee the accuracy of weighing to the effect of bradyseism, better improvement.

In conclusion, the spring damping device is arranged, and the supporting plate is buffered through the damping of the mechanical spring, so that the supporting plate is prevented from vibrating due to products above the supporting plate, and the weighing speed and the weighing stability are increased; the hydraulic buoyancy damping device is arranged, and the supporting disc can descend and ascend more slowly through hydraulic buoyancy damping, so that reciprocating motion caused by damping is avoided, and the supporting disc can be stopped and weighed quickly and stably; the dismounting device is arranged, so that the spring for damping can be conveniently dismounted, and the using effect and the service life can be ensured for a long time;

the requirement of box-packaging and five-grade packaging of the steel shell of the battery is met, so that the consistency of the electrolyte of the battery is met after the final assembly of the product, and the service life of the battery is ensured to be consistent.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the position structure of M-M in the present invention;

FIG. 3 is a schematic cross-sectional view of M-M in the present invention;

FIG. 4 is an enlarged view of A of FIG. 3 according to the present invention;

FIG. 5 is an enlarged view of B of FIG. 3 according to the present invention;

FIG. 6 is an enlarged view of C of FIG. 5 in accordance with the present invention;

FIG. 7 is an enlarged view of D of FIG. 3 in accordance with the present invention;

FIG. 8 is a schematic diagram of the N-N position structure according to the present invention;

FIG. 9 is a schematic cross-sectional view of N-N in the present invention;

FIG. 10 is an enlarged view of E of FIG. 9 in accordance with the present invention;

FIG. 11 is an enlarged view of F of FIG. 9 in accordance with the present invention;

FIG. 12 is a schematic view of a support assembly according to the present invention;

FIG. 13 is a schematic structural view of a third link according to the present invention;

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1-13, a precision weighing automatic sorting production process comprises the following steps:

weighing and sorting the batteries through a precise weighing and automatic sorting production line; the weighing automatic sorting production line comprises a cleaning station, a conveying station, a weighing station and a grading station; the method comprises the following steps: A. putting the product to a cleaning station to clean the product; B. after the product is cleaned, the product is sent into a product flow channel by a vibrating disc; C. the product falls to a precise damping weighing device from a product runner and is then weighed; the precise damping weighing device comprises an electronic scale shell 1, a control plate 3 arranged on the side face of the electronic scale shell 1, a supporting plate 2 arranged above the electronic scale shell 1 and used for containing products, a weighing device 11 arranged inside the electronic scale shell 1 and used for detecting weight, a supporting device 4 arranged above the weighing device 11, a water cavity 41 arranged in the supporting device 4, a buffer device 5 connected to the supporting plate 2, a hydraulic buoyancy damping device 8 arranged in the water cavity 41 and connected to the supporting plate 2, a spring damping device 6 arranged above the supporting device 4 and connected to the supporting plate 2, and a dismounting device 7 connected to the supporting plate 2 and used for buffering; the method comprises the following specific steps: products are conveyed above the supporting disc 2, then the supporting disc 2 moves downwards under the action of gravity, and then the supporting disc 2 is damped under the action of the dismounting device 7, so that the vibration of the supporting disc 2 and the vibration of the products are reduced, and the weighing is better carried out; D. the product is buffered in the first step through a buffer device 5; the supporting plate 2 comprises a first cavity 21 arranged on the supporting plate 2, a buffer plate 22 arranged in the first cavity 21 in a sliding manner, and a vent hole 23 arranged on the supporting plate 2 and communicated with the first cavity 21; the buffer device 5 comprises a connecting block 51 which is connected with the supporting disc 2 in a sliding manner and is matched with the vent hole 23, a first vent pipe 52 fixedly connected with the connecting block 51, a first sliding ring 53 arranged below the first vent pipe 52, a pressure control assembly 54 arranged below the first sliding ring 53, a first cylindrical groove 57 and a second cylindrical groove 58 which are arranged on the supporting device 4, a second vent pipe 55 connected with the second cylindrical groove 58, and a driving plate 56 connected with the second vent pipe 55 and the supporting disc 2; the joint of the second vent pipe 55 and the driving plate 56 can be extended and contracted; the second cylindrical groove 58 is located below the first cylindrical groove 57; the diameter of the second cylindrical groove 58 is larger than the diameter of the first cylindrical groove 57; the specific steps are that the product falls on the buffer plate 22, then the buffer plate 22 moves downwards, so that the gas in the first cavity 21 is compressed, then the buffer plate 22 moves downwards to buffer the product, then the buffer plate 22 moves to the first cavity 21 to compress enough gas and then drives the support disc 2 to move downwards, then the support disc 2 drives the connecting block 51 to move downwards, then the first vent pipe 52 can extend and retract, then the first vent pipe 52 is compressed and then drives the first sliding ring 53 to move downwards, then the gas in the first cylindrical groove 57 is compressed and is conveyed into the first cavity 21 from the first vent pipe 52, so that the gas in the first cavity 21 is increased, so that the buffer plate 22 is slowly reset, the pressure control component 54 is moved to drive the pressure control component 54 to move, and then the gas in the second cylindrical groove 58 is conveyed into the second vent pipe 55, then the second vent pipe 55 will push the driving plate 56 to move, and the driving plate 56 will drive the supporting plate 2 to move a distance towards the side to buffer the product; E. carrying out buoyancy shock absorption on the product through the water pressure buoyancy shock absorption device 8; the hydraulic buoyancy damping device 8 comprises a floating plate 82 arranged in the water cavity 41 in a sliding manner, a connecting rod 81 fixedly arranged in the floating plate 82 and fixedly connected to the support plate 2, a plurality of through holes 83 arranged on the floating plate 82, a fourth spring 84 arranged below the floating plate 82, a fixing plate 80 fixedly arranged on the water cavity 41 and supporting the fourth spring 84, a second cavity 89 arranged in the water cavity 41 and communicated with the second cylindrical groove 58, and a pressure plate 88 arranged in the second cavity 89 in a sliding manner; the method comprises the following specific steps: the supporting disc 2 moves downwards under the action of gravity, so that the floating plate 82 moves downwards, then the floating plate 82 is soaked in water, the floating plate 82 is damped through the buoyancy of the water and the shock absorption of the water, then the pressure control assembly 54 moves downwards, so that the gas in the second cylindrical groove 58 is compressed, the gas in the second cylindrical groove 58 is compressed to drive the driving plate 56 to move, meanwhile, the inside of the second cylindrical groove 58 is in a high-pressure state, and therefore the pressure plate 88 pushes the water in the water cavity 41 under the action of the pressure, namely, the water surface rises; F. and sending the materials into corresponding grading packaging bags in a grading manner.

The invention mainly uses the dismounting device 7 to perform normal mechanical shock absorption, then uses the supporting disk 2 and the buffer device 5 to buffer the product, so that the product can better stop shock, namely the product falls on the buffer plate 22, the buffer plate 22 moves downwards, namely the buffer plate 22 moves downwards along with the product, then the first cavity 21 is compressed, the resistance of the buffer plate 22 moving downwards is increased, thereby the product moving downwards is decelerated, then the buffer plate 22 and the product move downwards together, the product falling on the buffer plate 22 can be prevented from bouncing, thereby the product can be better ensured not bouncing, better weighing is performed, then the product is decelerated, namely the kinetic energy of the product is reduced, thereby the mechanical energy of the product is reduced, thereby the energy of the product vibrating is reduced, and the shock absorption effect is further increased, then the supporting disk 2 will move downwards to better convert the kinetic energy of the product into the elastic potential energy of the dismounting device 7, and then the product will be prevented from bouncing up, then the downward movement of the supporting disk 2 will make the buffer plate 22 move upwards for a certain distance, so as to further reduce the speed of the product descending, and then the kinetic energy of the product will be further reduced, so that the product and the buffer plate 22 can better keep the same trend with the movement of the supporting disk 2, thereby achieving the shock absorption of the product, then the supporting disk 2 will reset because the downward movement of the supporting disk 2 will generate the elastic potential energy, the downward movement of the supporting disk 2 will also make the second vent pipe 55 and the driving plate 56 push the supporting disk 2 to move sideways, so that the supporting disk 2 will move sideways while moving downwards, and thus the supporting disk 2 will move towards the direction of the inclined plane, therefore, the kinetic energy of the downward movement of the product is converted into the kinetic energy of the downward movement and the kinetic energy of the sideward movement, then the kinetic energy of the downward movement is buffered, then the kinetic energy of the sideward movement is consumed under the action of friction force, so that the mechanical energy of the product is reduced, namely the mechanical energy is gradually converted from the very large mechanical energy to the elastic potential energy of the upward bounce of the supporting disc 2, then the friction force and the kinetic energy are mutually offset, the kinetic energy of the product is further reduced, the elastic potential energy of the upward bounce of the supporting disc 2 is also reduced, the phenomenon that the product is separated from the buffer plate 22 due to the overlarge upward movement energy of the supporting disc 2 is better prevented, further vibration is generated again, then when the supporting disc 2 moves downwards, the floating plate 82 is driven to move downwards under the action of the connecting rod 81, and then the floating plate 82 is subjected to the downward resistance caused by the buoyancy of water, the downward movement of the supporting disc 2 is decelerated more obviously, so that the phenomenon that the supporting disc 2 moves too fast is avoided, and the product tends to move downwards after the supporting disc 2 stops, but the buffer plate 22 cannot move downwards to avoid the phenomenon that the product bounces again, and then the downward movement of the supporting disc 2 also enables the pressure plate 88 to receive thrust through the pressure control assembly 54, so that the liquid level in the water cavity 41 rises, the buoyancy force borne by the floating plate 82 is increased, the deceleration effect of the water on the floating plate 82 is further increased, that is, the deceleration effect of the supporting disc 2 is further increased, and then the supporting disc 2 is better and slowly dropped to the lowest position, so that the product is better ensured not to bounce again; after the supporting plate 2 moves to the lowest position, the supporting plate 2 moves upwards, then the floating plate 82 moves upwards, when the floating plate 82 moves upwards, the floating plate 82 is provided with holes, so the upper side and the lower side of the floating plate 82 are provided with water, then the floating plate 82 moves upwards, the moving speed of the floating plate 82 is reduced under the action of the water above the floating plate 82, so that the floating plate 82 can move upwards more slowly, when the supporting plate 2 moves downwards slowly and then turns upwards slowly, the direction can be changed more stably, the phenomenon that the product bounces again due to too large front-back speed difference in the direction changing process is avoided, the product is better buffered, the product can be better buffered after being placed on the supporting plate 2, the vibration is lost, and when the supporting plate 2 resets again, can be more quickly stopped, and the heavy accuracy cannot be influenced by up-and-down shaking, so that the subsequent sorting effect is better.

Specifically, the area above the through hole 83 is smaller than the area below; namely, the through hole 83 is provided in an inverted conical shape; a tension spring 85 is fixedly arranged below the through hole 83; a water flow speed reducing plate 86 is fixedly arranged below the tension spring 85; when the floating plate 82 moves downwards, the volume of a channel from water to the upper part of the floating plate 82 is reduced due to the existence of the water flow speed reducing plate 86, so that the water flow speed reducing plate 86 stops water, the water flow speed reducing plate 86 tends to stop the water from moving upwards, the speed reducing effect on the floating plate 82 is better when the floating plate 82 moves downwards, then the floating plate 82 moves upwards, the speed of the water flowing from the upper part to the lower part is reduced due to the existence of a cone, the water can slow down the floating plate 82 to move upwards for a longer time above the floating plate 82, and the floating plate 82 can be stopped quickly.

Specifically, the spring shock absorbing device 6 comprises a second telescopic rod 63 fixedly arranged above the support 4, a fourth sliding block 62 fixedly arranged on two sides of the second telescopic rod 63, an arc-shaped fixture block 621 fixedly arranged on the fourth sliding block 62, a clamping plate 64 arranged above the fourth sliding block 62 and matched with the arc-shaped fixture block 621, a third telescopic rod 641 fixedly arranged below the clamping plate 64 and used for guiding the clamping plate 64, a third connecting rod 61 hinged to the fourth sliding block 62 and the support plate 2, a pressing plate 66 arranged above the clamping plate 64, a compression spring 67 fixedly arranged below the pressing plate 66 and fixedly connected to the clamping plate 64, and a tightening assembly 65 connected to the pressing plate 66; the clamping assembly 65 comprises a fourth telescopic rod 655 fixedly arranged between the pressing plate 66 and the support 4 and used for guiding the pressing plate 66; the method comprises the following specific steps: the supporting disc 2 moves downwards to drive the fourth sliding block 62 to move in the opposite direction through the third connecting rod 61, then the second telescopic rod 63 guides the movement of the fourth sliding block 62, then the arc-shaped fixture block 621 is located at a position matched with the clamping plate 64 when the fourth sliding block 62 moves, then the clamping plate 64 is pressed by the compression spring 67 and can downwards supply certain pressure to the arc-shaped fixture block 621, and then the arc-shaped fixture block 621 can reduce the movement speed under the action of the clamping plate 64 when the arc-shaped fixture block 621 moves, so that the movement speed of the supporting disc 2 when the supporting disc moves downwards is further reduced;

specifically, the tightening assembly 65 further includes a lifting plate 654 slidably disposed on the fourth telescopic rod 655, a sliding frame 651 slidably disposed above the support 4, a fourth connecting rod 652 hinged to the sliding frame 651 and the lifting plate 654, a return spring 653 fixedly disposed between the two sliding frames 651 for returning the sliding frame 651, and a second spring 656 fixedly disposed between the lifting plate 654 and the pressing plate 66; when the fourth sliding blocks 62 move toward each other, the sliding blocks are moved to the position of the sliding frame 651, and then the sliding frames 651 are hit against the sliding frame 651, so that the sliding frames 651 move toward each other, then the sliding frame 651 drives the lifting plate 654 to move downward through the fourth connecting rod 652, and then the lifting plate 654 pulls one end of the second spring 656 to move downward.

Specifically, the pressure control assembly 54 includes a second sliding ring 541 slidably disposed in the second cylindrical groove 58, a guide rod 542 slidably disposed in the second sliding ring 541, a sealing plate 543 fixedly disposed below the guide rod 542, a fourth expansion plate 545 and a third spring 546 fixedly disposed between the second sliding ring 541 and the sealing plate 543, and a sealing ring 544 fixedly disposed outside the fourth expansion plate 545 and abutting against a lower surface of the second sliding ring 541; the first sliding ring 53 is slidably connected to the first cylindrical groove 57; magnets are arranged on the guide rod 542 and the first sliding ring 53; the method comprises the following specific steps: the downward movement of the first sliding ring 53 presses the guide rod 542, and then drives the guide rod 542 to move downward, and then moves the sealing plate 543 and the sealing ring 544 downward, so that the sealing ring 544 and the sealing plate 543 no longer seal the second sliding ring 541, and then the second cylindrical groove 58 and the first cylindrical groove 57 are communicated, and then the gas in the second cylindrical groove 58 is compressed, and then when the support disk 2 is reset, the guide rod 542 is reset by the driving of the magnet on the first sliding ring 53, and the second sliding ring 541 is reset by the same movement principle as described above.

Specifically, the detaching device 7 includes a sliding cavity arranged inside the support 4, a first support plate 74 slidably arranged in the sliding cavity, a first spring 77 fixedly arranged above the first support plate 74, a second support plate 75 fixedly arranged above the first spring 77 and slidably connected to the support plate 2 for supporting the support plate 2, a first telescopic rod 76 arranged between the second support plate 75 and the first support plate 74 for cushioning the support plate 2, a pull rod 71 arranged on the side surface of the control plate 3, a lifting assembly 72 connected to the pull rod 71 and the first support plate 74, and a support assembly 73 connected to the lifting assembly 72; the method comprises the following specific steps: the sliding connection between the second support plate 75 and the support plate 2 can make the support plate 2 move horizontally, then the first telescopic rod 76 damps the support plate 2, and the first telescopic rod 76 will age with the increase of the service time, so the first telescopic rod 76 needs to be replaced, specifically, the replacement mainly comprises that a worker pulls the pull rod 71 to the side, the pull rod 71 is far away from the electronic scale casing 1, then the pull rod 71 drives the first support plate 74 to move downwards through the lifting component 72, then the pull rod 71 drives the support component 73 to move upwards, so that the second support plate 75 no longer supports the support plate 2 due to the downward movement of the first support plate 74, then the support plate 2 also moves downwards, then the support component 73 moves upwards to support the support plate 2 moving downwards and drive the support plate 2 to move upwards, so that the support plate 2 returns to the original position, so that the position of the support plate 2 is not changed, but the first support plate 74 is moved downward, and thus the first spring 77 and the first telescopic bar 76 are moved downward, and then a space for the first telescopic bar 76 to be disassembled is increased, so that the first telescopic bar 76 is easily disassembled.

Specifically, the lifting assembly 72 includes a driving groove 721 disposed on the pull rod 71, a lifting rod 722 slidably disposed in the driving groove 721, two first connecting rods 723 hinged to the lifting rod 722, and a first sliding block 724 hinged to the two first connecting rods 723 and slidably disposed on the bottom surface of the sliding cavity; the first connecting rods 723 are provided with a plurality of connecting rods which are hinged with each other to form a plurality of scissors; the supporting component 73 comprises a second connecting rod 731 hinged to the pull rod 71, a second sliding block 732 hinged to the second connecting rod 731 and arranged on the side face of the sliding cavity in a sliding mode, a third supporting plate 733 fixedly connected to the second sliding block 732, a fourth supporting plate 734 fixedly arranged above the third supporting plate 733, a conveying belt 735 arranged on the fourth supporting plate 734, a gear 737 fixedly connected to a shaft body driving the conveying belt 735 to move, a rack 736 fixedly arranged on the side face of the sliding cavity and meshed with the gear 737, a third sliding block 738 fixedly arranged on the conveying belt 735, and a supporting column 739 fixedly arranged above the third sliding block 738 and used for supporting the supporting disc 2; the conveyor belt 735 is not prior art; the method comprises the following specific steps: when the pull rod 71 is pulled to move, the second link 731 is driven to move, then the second link 731 drives the second sliding block 732 to move upwards, the second sliding block 732 drives the fourth supporting plate 734 to move upwards, so that the conveying belt 735 moves upwards, when the conveying belt 735 moves upwards, the gear 737 moves upwards, then the gear 737 is engaged with the rack 736, so that the gear 737 drives the conveying belt 735 to convey, so that the third sliding block 738 moves upwards under the action of the conveying belt 735 while the third sliding block 738 moves upwards along with the upward movement of the fourth supporting plate 734, so that the distance that the third sliding block 738 moves upwards is increased, then the distance that the supporting column 739 moves upwards is larger than the distance that the fourth supporting plate 734 moves upwards, so that the position that the supporting column 739 supports the supporting disc 2 is increased in height, so that the space between the supporting disc 2 and the supporting disc 4 is larger, the disassembly of the first telescopic rod 76 is further facilitated and the first spring 77 is disengaged from the support plate 2, so that there is no restriction above the first spring 77, thereby further increasing the ease of disassembly.

Specifically, a ring groove 741 is disposed above the first support plate 74; the ring groove 741 is used for clamping the first spring 77; thereby just need take out first spring 77 from annular 741 when dismantling first spring 77, later manually open control panel 3, can be better take out first spring 77 from electronic scale shell 1 to further reduced the dismantlement degree of difficulty, through dismantling convenient can be better guarantee the effect of bradyseism, better improvement the accuracy of weighing.

The invention meets the requirement that the battery steel shell is packed in 0.02 g in one grade, and the total weight is packed in five grades between +0.1 g, so as to meet the consistency of the battery electrolyte after the product is assembled, thereby ensuring the consistent service life of the battery.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. The precise weighing automatic sorting production process is characterized by comprising the following steps of: comprises the following steps

Weighing and sorting the batteries through a precise weighing and automatic sorting production line; the weighing automatic sorting production line comprises a cleaning station, a conveying station, a weighing station and a grading station; the method comprises the following steps:

A. putting the product to a cleaning station to clean the product;

B. after the product is cleaned, the product is sent into a product flow channel by a vibrating disc;

C. the product falls to a precise damping weighing device from a product runner and is then weighed; the precise damping weighing device comprises an electronic scale shell (1), a control panel (3) arranged on the side face of the electronic scale shell (1), a supporting disk (2) arranged above the electronic scale shell (1) and used for containing products, a weighing device (11) arranged inside the electronic scale shell (1) and used for detecting weight, a support (4) arranged above the weighing device (11), a water cavity (41) arranged in the support (4), a buffer device (5) connected with the supporting disk (2), a water pressure buoyancy damping device (8) arranged in the water cavity (41) and connected with the supporting disk (2), a spring damping device (6) arranged above the support (4) and connected with the supporting disk (2), and a dismounting device (7) connected with the supporting disk (2) and used for buffering; the method comprises the following specific steps: products are conveyed above the supporting disc (2), the supporting disc (2) moves downwards under the action of gravity, and then the supporting disc (2) is damped under the action of the dismounting device (7), so that the vibration of the supporting disc (2) and the vibration of the products are reduced, and the weighing is better carried out;

D. the product is buffered in the first step through a buffer device (5); the supporting plate (2) comprises a first cavity (21) arranged on the supporting plate (2), a buffer plate (22) arranged in the first cavity (21) in a sliding manner, and a vent hole (23) arranged on the supporting plate (2) and communicated with the first cavity (21); the buffer device (5) comprises a connecting block (51) which is connected with the supporting disc (2) in a sliding manner and matched with the vent hole (23), a first vent pipe (52) fixedly connected with the connecting block (51), a first sliding ring (53) arranged below the first vent pipe (52), a pressure control assembly (54) arranged below the first sliding ring (53), a first cylindrical groove (57) and a second cylindrical groove (58) which are arranged on the supporting device (4), a second vent pipe (55) connected with the second cylindrical groove (58), and a driving plate (56) connected with the second vent pipe (55) and the supporting disc (2); the joint of the second vent pipe (55) and the driving plate (56) can be extended and contracted; the second cylindrical groove (58) is located below the first cylindrical groove (57); the diameter of the second cylindrical groove (58) is larger than that of the first cylindrical groove (57); the method comprises the following specific steps that a product falls on a buffer plate (22), then the buffer plate (22) moves downwards, so that gas in a first cavity (21) is compressed, then the buffer plate (22) moves downwards to buffer the product, then the buffer plate (22) moves to the first cavity (21) and then drives a support disc (2) to move downwards, then the support disc (2) drives a connecting block (51) to move downwards, then a first vent pipe (52) can stretch and contract, then the first vent pipe (52) is compressed, then a first sliding ring (53) is driven to move downwards, then gas in a first cylindrical groove (57) is compressed and is conveyed into the first cavity (21) from the first vent pipe (52), so that the gas in the first cavity (21) is increased, and the buffer plate (22) is slowly reset, the gas in the second cylindrical groove (58) enters the second vent pipe (55) after the gas moves to the pressure control assembly (54) to drive the pressure control assembly (54) to move, then the second vent pipe (55) pushes the driving plate (56) to move, and the driving plate (56) drives the supporting plate (2) to move towards the side face for a certain distance to buffer the product;

E. carrying out buoyancy damping on the product through a water pressure buoyancy damping device (8); the hydraulic buoyancy damping device (8) comprises a floating plate (82) arranged in the water cavity (41) in a sliding manner, a connecting rod (81) fixedly arranged in the floating plate (82) and fixedly connected to the supporting disk (2), a plurality of through holes (83) arranged on the floating plate (82), a fourth spring (84) arranged below the floating plate (82), a fixing plate (80) fixedly arranged on the water cavity (41) and supporting the fourth spring (84), a second cavity (89) arranged in the water cavity (41) and communicated with the second cylindrical groove (58), and a pressure plate (88) arranged in the second cavity (89) in a sliding manner; the method comprises the following specific steps: the supporting disc (2) moves downwards under the action of gravity to enable the floating plate (82) to move downwards, then the floating plate (82) is soaked in water, the floating plate (82) is damped through buoyancy of the water and shock absorption of the water, then the pressure control assembly (54) moves downwards to enable gas in the second cylindrical groove (58) to be compressed, the gas in the second cylindrical groove (58) is compressed to drive the driving plate (56) to move, meanwhile, the interior of the second cylindrical groove (58) is enabled to be in a high-pressure state, and therefore the pressure plate (88) can push the water in the water cavity (41) under the action of the pressure, namely, the water surface can rise;

F. and sending the materials into corresponding grading packaging bags in a grading manner.

2. The precision weighing automatic sorting production process according to claim 1, characterized in that: the area above the through hole (83) is smaller than the area below the through hole; namely, the through hole (83) is arranged in an inverted cone shape; a tension spring (85) is fixedly arranged below the through hole (83); a water flow speed reducing plate (86) is fixedly arranged below the tension spring (85); when the floating plate (82) moves downwards, the volume of a channel from water to the upper part of the floating plate (82) is reduced due to the existence of the water flow speed reducing plate (86), so that the water flow speed reducing plate (86) stops water, the water flow speed reducing plate (86) has the tendency of preventing the water from moving upwards, the speed reducing effect on the floating plate (82) is better when the floating plate (82) moves downwards, the speed of the water flowing downwards from the upper part is reduced due to the existence of the cone shape when the floating plate (82) moves upwards, the water can slow down the floating plate (82) to move upwards for a longer time above the floating plate (82), and the floating plate (82) can be stopped quickly.

3. The precision weighing automatic sorting production process according to claim 1, characterized in that: the spring damping device (6) comprises a second telescopic rod (63) fixedly arranged above the support (4), fourth sliding blocks (62) fixedly arranged on two sides of the second telescopic rod (63), arc-shaped clamping blocks (621) fixedly arranged on the fourth sliding blocks (62), clamping plates (64) arranged above the fourth sliding blocks (62) and matched with the arc-shaped clamping blocks (621), third telescopic rods (641) fixedly arranged below the clamping plates (64) and used for guiding the clamping plates (64), third connecting rods (61) hinged to the fourth sliding blocks (62) and the support plate (2), pressing plates (66) arranged above the clamping plates (64), compression springs (67) fixedly arranged below the pressing plates (66) and fixedly connected to the clamping plates (64), and tightening assemblies (65) connected to the pressing plates (66); the clamping assembly (65) comprises a fourth telescopic rod (655) which is fixedly arranged between the pressing plate (66) and the support (4) and used for guiding the pressing plate (66); the method comprises the following specific steps: supporting disk (2) downstream can drive fourth sliding block (62) through third connecting rod (61) and move in opposite directions, later second telescopic link (63) lead the motion of fourth sliding block (62), later fourth sliding block (62) arc fixture block (621) are in and carry out the complex position with cardboard (64) when the motion, later cardboard (64) receive compression spring (67) pressure, can give arc fixture block (621) certain pressure downwards, later arc fixture block (621) can reduce the rate of motion under the effect of cardboard (64) when the motion.

4. The precision weighing automatic sorting production process of claim 3, wherein: the tightening assembly (65) further comprises a lifting plate (654) arranged on the fourth telescopic rod (655) in a sliding manner, a sliding frame (651) arranged above the support (4) in a sliding manner, a fourth connecting rod (652) hinged to the sliding frame (651) and the lifting plate (654), a return spring (653) fixedly arranged between the two sliding frames (651) and used for returning the sliding frame (651), and a second spring (656) fixedly arranged between the lifting plate (654) and the pressing plate (66); when the fourth sliding block (62) moves oppositely, the sliding block moves to the position of the sliding frame (651), then the sliding frame (651) is impacted, the sliding frame (651) moves oppositely, then the sliding frame (651) drives the lifting plate (654) to move downwards through the fourth connecting rod (652), and then the lifting plate (654) pulls one end of the second spring (656) to move downwards.

5. The precision weighing automatic sorting production process according to claim 1, characterized in that: the pressure control assembly (54) comprises a second sliding ring (541) arranged in the second cylindrical groove (58) in a sliding manner, a guide rod (542) arranged in the second sliding ring (541) in a sliding manner, a sealing plate (543) fixedly arranged below the guide rod (542), a fourth expansion plate (545) and a third spring (546) fixedly arranged between the second sliding ring (541) and the sealing plate (543), and a sealing ring (544) fixedly arranged on the outer side of the fourth expansion plate (545) and abutted against the lower surface of the second sliding ring (541); the first sliding ring (53) is slidably connected with the first cylindrical groove (57); magnets are arranged on the guide rod (542) and the first sliding ring (53); the method comprises the following specific steps: the first sliding ring (53) moves downwards to press the guide rod (542), then the guide rod (542) is driven to move downwards, then the sealing plate (543) and the sealing ring (544) move downwards, so that the sealing ring (544) and the sealing plate (543) can not seal the second sliding ring (541), then the second cylindrical groove (58) is communicated with the first cylindrical groove (57), then the gas in the second cylindrical groove (58) is compressed, then when the supporting disc (2) is reset, the guide rod (542) is reset under the driving of the magnet on the first sliding ring (53), and the second sliding ring (541) is reset through the same movement principle.

6. The precision weighing automatic sorting production process according to claim 1, characterized in that: the dismounting device (7) comprises a sliding cavity arranged in the support (4), a first support plate (74) arranged in the sliding cavity in a sliding mode, a first spring (77) fixedly arranged above the first support plate (74), a second support plate (75) fixedly arranged above the first spring (77) and connected to the support plate (2) in a sliding mode and used for supporting the support plate (2), a first telescopic rod (76) arranged between the second support plate (75) and the first support plate (74) and used for cushioning the support plate (2), a pull rod (71) arranged on the side face of the control plate (3), a lifting assembly (72) connected to the pull rod (71) and the first support plate (74), and a support assembly (73) connected to the lifting assembly (72); the method comprises the following specific steps: the pull rod (71) is pulled to the side by a worker, the pull rod (71) is far away from the shell (1) of the electronic scale, then the pull rod (71) drives the first supporting plate (74) to move downwards through the lifting component (72), then the pull rod (71) drives the supporting component (73) to move upwards, so that the downward movement of the first supporting plate (74) causes the second supporting plate (75) to no longer support the supporting disc (2), and then the supporting disc (2) moves downward, and then the upward movement of the supporting assembly (73) causes the supporting disc (2) moving downward to be supported and drives the supporting disc (2) to move upward, so that the support disc (2) is restored to its original position, i.e. the position of the support disc (2) is not changed, but the first support plate (74) is moved downward, thereby moving the first spring (77) and the first telescopic rod (76) downwards.

7. The precision weighing automatic sorting production process of claim 6, wherein: the lifting assembly (72) comprises a driving groove (721) arranged on the pull rod (71), a lifting rod (722) arranged in the driving groove (721) in a sliding manner, two first connecting rods (723) hinged to the lifting rod (722), and a first sliding block (724) hinged to the two first connecting rods (723) and arranged on the bottom surface of the sliding cavity in a sliding manner; the first connecting rods (723) are multiple and hinged with each other to form a shape of a plurality of scissors; the supporting assembly (73) comprises a second connecting rod (731) hinged to the pull rod (71), a second sliding block (732) hinged to the second connecting rod (731) and arranged on the side face of the sliding cavity in a sliding mode, a third supporting plate (733) fixedly connected to the second sliding block (732), a fourth supporting plate (734) fixedly arranged above the third supporting plate (733), a conveying belt (735) arranged on the fourth supporting plate (734), a gear (737) fixedly connected to a shaft body driving the conveying belt (735) to move, a rack (736) fixedly arranged on the side face of the sliding cavity and meshed with the gear (737), a third sliding block (738) fixedly arranged on the conveying belt (735), and a supporting column (739) fixedly arranged above the third sliding block (738) and used for supporting the supporting disc (2); the conveyor belt (735) is not prior art; the method comprises the following specific steps: when the pull rod (71) is pulled to move, the second connecting rod (731) is driven to move, then the second connecting rod (731) drives the second sliding block (732) to move upwards, the second sliding block (732) drives the fourth supporting plate (734) to move upwards, so that the conveying belt (735) can move upwards, when the conveying belt (735) moves upwards, the gear (737) moves upwards, then the gear (737) is meshed with the rack (736), so that the gear (737) drives the conveyor belt (735) to convey, and the third sliding block (738) moves upwards under the action of the conveyor belt (735) while the third sliding block (738) moves upwards along with the fourth support plate (734), thereby moving the third slide block (738) upward by an increased distance, and then moving the support post (739) upward by a greater distance than the fourth support plate (734).

8. The precision weighing automatic sorting production process of claim 7, wherein: a ring groove (741) is arranged above the first supporting plate (74); the annular groove (741) is used for clamping the first spring (77); therefore, when the first spring (77) is disassembled, the first spring (77) only needs to be taken out of the annular groove (741), and then the control plate (3) is manually opened, so that the first spring (77) can be better taken out of the electronic scale shell (1).