CN115158770A

CN115158770A - Precursor ton package scale

Info

Publication number: CN115158770A
Application number: CN202210927792.1A
Authority: CN
Inventors: 邹建东; 许欣欣
Original assignee: Wuxi Jianying Intelligent Equipment Co ltd
Current assignee: Wuxi Jianying Intelligent Equipment Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-10-11

Abstract

The invention provides a precursor ton package scale, which comprises a hook platform frame; the feeding packaging module is arranged at the upper end of the hook platform frame; the conveying compaction module is arranged at the lower end of the hook platform frame; the feeding packaging module comprises a feeding screw, the feeding screw comprises a straight cylinder, an auger shaft is arranged in the straight cylinder, a feeding helical blade is connected to the auger shaft, a feeding port and a discharging port are respectively arranged at the upper end and the lower end of the straight cylinder, a certain distance is arranged between the feeding port and the discharging port, and the pitch of the feeding helical blade towards one side of the discharging port in the distance is gradually reduced. The invention overcomes the defects of the prior art, has reasonable design and compact structure, ensures that the gas content of the precursor material is reduced to the maximum extent in the packaging process by controlling the material and the structure of the packaging scale, reduces or avoids the contact of metal with the dust content to cause the risk of material pollution, and has large demand and high development value for the industry of novel precursor batteries in the current market.

Description

Precursor ton package scale

Technical Field

The invention relates to the technical field of precursor material packaging equipment, in particular to a ton package scale for a precursor.

Background

With the development of the world, the stored energy of the earth is reduced day by day, and new energy is applied to production and living more and more. And corresponding battery materials have increased. The precursor is used as one of battery materials, and the production and packaging requirements of the precursor are higher than those of other chemical materials.

The prior packing scale can only meet the requirement of packing chemical materials, has the characteristics of high gas content and light specific gravity aiming at materials such as nickel-cobalt-manganese ternary precursors, and can not adopt the traditional packing equipment and packing mode.

For example, chinese patent CN202121842235.7 discloses a packaging machine for ternary precursor materials, which comprises a support 1, a hopper 2 and a discharge channel 3, wherein a discharge pipe communicated with the discharge channel 3 is arranged in the support 1, a discharge device is arranged at one end of the discharge pipe far away from the hopper 2, the discharge device comprises a clamping arm 5 and a clamping sleeve communicated with the discharge pipe, and a vertically arranged delivery pipe is adopted in the packaging machine, so that the effects of exhausting and extruding materials of the precursor are not ideal, and the problem of large gas content exists in ton bags.

And powder or ions of copper and zinc materials are forbidden in the packaging process; therefore, abrasion and copper and zinc metal ions are required to be completely avoided on the packaging and feeding device, rotating parts such as a pin shaft are avoided as much as possible, and the risk of contact between materials and other metals is reduced.

For this reason, we propose a precursor ton package scale.

Disclosure of Invention

It is an object of the present invention to solve or at least alleviate problems in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the precursor ton package scale is characterized by comprising a hook platform frame;

the feeding packaging module is arranged at the upper end of the hook platform frame;

the conveying compaction module is arranged at the lower end of the hook platform frame;

the feeding packaging module comprises a feeding screw, the feeding screw comprises a straight cylinder, an auger shaft is arranged in the straight cylinder, a feeding helical blade is connected to the auger shaft, a feeding port and a discharging port are respectively arranged at the upper end and the lower end of the straight cylinder, a certain distance is formed between the feeding port and the discharging port, and the pitch of the feeding helical blade towards one side of the discharging port within the distance is gradually reduced;

a screw blade in a reverse rotation direction is designed on a screw shaft positioned at the rear side of the discharge port in the straight cylinder;

the top wall of the hook platform frame is fixedly connected with a lifting cylinder, a driving shaft of the lifting cylinder penetrates through the top wall of the hook platform frame and is connected with a hook platform, and the lower end of the hook platform is connected with a plurality of packaging bag hooks;

a control butterfly valve is arranged on the discharge port to control the discharge; the lower end of the discharge port, which is positioned at the control butterfly valve, is covered with an air bag clamping device;

the conveying and compacting module comprises a fixed table, the fixed table is fixed at the lower end of a hook platform frame, the upper end of the fixed table is connected with and drives the same vibration jacking table to lift through a plurality of air bag springs, the vibration jacking table comprises a connecting plate and a vertical frame arranged on the connecting plate, and the lower end of the vibration jacking table is connected with a plurality of vibration motors;

the section of the hook platform frame above the connecting plate is connected with conveying roller ways, and the vertical frames penetrate through the conveying roller ways at intervals.

Optionally, the auger shaft, the charging helical blade and the reverse-rotation helical blade are made of carburizing steel materials, and the inner wall of the straight cylinder is sprayed with Teflon.

Optionally, the straight pipe is located directly over the discharge port and is further provided with a buffer area, and the upper end of the buffer area can be opened.

Optionally, the straight cylinder adopts horizontal design, the auger shaft passes through the straight cylinder and is connected with reinforced servo motor.

Optionally, the upper end of the air bag clamping device is connected with the pipe wall of the discharge port through a dust removal sleeve, the dust removal sleeve is connected with a negative pressure system, and a vibrator is further arranged on the air bag clamping device.

Optionally, the air bag spring is connected with an inflation system, so that the effects of inflation, expansion and air suction can be achieved.

Optionally, the couple platform is through a plurality of lifting guide sliding connection that are the matrix distribution on couple platform frame, is provided with lifting guide on fixed station and the connecting plate equally.

Optionally, the fixed table is further connected with a conveying roller way motor, and an output shaft of the conveying roller way motor drives the plurality of rotary rollers to rotate through the chain and chain wheel assembly.

Optionally, the below of fixed station still is provided with parallel support frame, and is connected with a plurality of sensors between fixed station and the support frame, and the sensor generally is weighing transducer, sensor and rollgang motor, gas system and shock dynamo electric connection.

Optionally, the balloon sack holder is of the balloon inflation type.

The embodiment of the invention provides a precursor ton package scale. The method has the following beneficial effects:

1. structural brand-new design:

the packing scale adopts a transverse screw as a feeding mode for powdery materials, 1-4 feeding screw blades adopt a variable pitch design for the packing of the battery materials, the screw pitch at a feeding port 1-2 is designed normally, and after the battery materials enter a straight pipe 1-1, the screw pitch of the screw blades is reduced step by step to play a role in compressing the materials and increasing the bulk density of the materials;

the spiral auger discharging port 1-3 positions are reserved, and then the reverse rotation direction helical blades 1-5 are designed to ensure that materials cannot be brought into the bearing installation position of the auger shaft to cause material leakage and bearing clamping stagnation, meanwhile, the straight pipe 1-1 is positioned right above the discharging port 1-3 and is also provided with the buffer area 1-6, the upper end of the buffer area 1-6 can be opened, so that the materials can be conveniently extruded under the action of gravity, the density is increased, a pressurizing device can be additionally arranged, the extruding effect of the materials is improved, and the maintenance and the cleaning are convenient.

The whole machine is provided with a synchronous belt lifting guide rail 6, a hook platform 7 is arranged on the lifting guide rail 6, and the hook platform 7 drives a packaging bag hook 7-1 to lift up and down through the action of a lifting cylinder 5;

the air bag clamping device 9 adopts an air bag bulging type structure, and the structure has no rotating piece, so that the bag opening can be sealed in the packaging process, and the abrasion caused by the pin shaft can be reduced;

2. the application of the material is as follows:

in order to avoid the friction between the materials and the metal, the auger shaft, the feeding helical blades 1-4 and the reverse-rotation helical blades 1-5 are made of carburizing steel materials, the abrasion performance of the screw is enhanced, the abrasion strength can reach 80, the inner wall of the straight cylinder 1-1 is sprayed with Teflon, and the friction between the screw and the shell in the operation process is avoided;

copper-containing and zinc-containing parts are forbidden to be used as the whole material, and the whole machine is made of 304 stainless steel materials, so that the appearance of copper ions and zinc ions is ensured;

3. innovation of weighing structure form:

the weighing module of the packing scale is generally arranged at the upper part, and the ton bag is hung on the weighing platform. And aiming at the packaging of the battery material, the weighing module and the packaging scale bottom designed by the weighing platform are arranged. A roller way conveying structure and a vibration exhaust solid structure are designed on the weighing platform;

4. technical innovation of Ducheng ton bag materials:

through the application of ton bag bottom vibrations weighing platform, after the packaging process, bottom vibrations platform risees under air bag spring 14's effect, and vibrations jack-up platform 13 shakes the ton bag under the effect of shock dynamo 15 and is stocky, with the gas outgoing in the material.

The vibration jacking platform 13 is separated from the roller way conveying device, so that the influence of vibration on the structure of the conveying roller way 11 and the motor 12 of the conveying roller way is reduced, and the service life of the bottom weighing and conveying mechanism is prolonged.

5. Controlling dust in the packaging process:

and a dust removal device with an air suction opening is arranged on the packaging material passing channel. And (4) performing dust extraction treatment on the channel in the material blanking process, and extracting the generated dust into dust remover equipment. Except for the dust removal port, the whole conveying system and the material passing channel, the air bag clamping device 9 and the ton bag whole system are in a closed loop system, and dust only exists in the closed loop system;

6. and (3) controlling the precision:

in order to improve the packaging precision of the packaging system, the feeding screw 1 is controlled by a servo system, the screw speed and the number of turns of rotation are controlled in a programming mode, and the packaging precision is ensured by multi-stage control of speed in several sections and turns; besides, a pneumatic control butterfly valve 3 is additionally arranged at the spiral discharge hole to control the feeding state of the materials, and the packaging precision of the materials is further ensured.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2;

FIG. 4 is an enlarged schematic view of a feed screw sectional structure according to the present invention.

In the figure: a feed screw 1; 1-1 of a straight cylinder; a feed port 1-2; 1-3 of a discharge port; 1-4 parts of charging helical blades; 1-5 of spiral blades in reverse rotation direction; a feeding servo motor 2; a control butterfly valve 3; a dust removal sleeve 4; a lifting cylinder 5; a lifting guide rail 6; a hook platform 7; 7-1 of a packaging bag hook; a vibrator 8; an airbag bag holder 9; a hooking platform frame 10; a rollgang 11; a rollgang motor 12; a vibration jack-up table 13; an air bladder spring 14; a vibration motor 15; a sensor 16; a fixed table 17; a support frame 18.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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.

Referring to the attached drawings 1-4, the precursor ton package scale comprises a feeding screw 1, a feeding servo motor 2, a control butterfly valve 3, a dust removal sleeve 4, a lifting cylinder 5, a lifting guide rail 6, a hook platform 7, a package bag hook 7-1, a vibrator 8, an air bag clamping device 9, a hook platform frame 10, a conveying roller way 11, a conveying roller way motor 12, a vibration jacking platform 13, an air bag spring 14, a vibration motor 15, a sensor 16, a fixing platform 17, a support frame 18 and other parts.

Precursor ton package packing scale is upper and lower structure, including connecting the material feeding packing module in couple platform frame 10 upper end and connecting the solid module of delivery in couple platform frame 10 lower extreme.

The feeding and packaging module comprises a feeding screw 1, a feeding servo motor 2, a control butterfly valve 3, a dust removal sleeve 4, a lifting cylinder 5, a lifting guide rail 6, a hook platform 7, a packaging bag hook 7-1, a vibrator 8 and a bag holder 9;

the feeding screw 1 comprises a straight cylinder 1-1, the straight cylinder 1-1 adopts a transverse design to improve the uniformity of conveying and improve the extrusion effect on materials, an auger shaft is arranged in the straight cylinder 1-1, the auger shaft penetrates through the straight cylinder 1-1 and is connected with a feeding servo motor 2, a servo system is adopted for controlling, the screw speed and the number of rotating turns are controlled in a programming mode, and the multi-stage control is realized by dividing the speed into several sections and rotating several turns to ensure the packaging precision.

Meanwhile, the auger shaft is connected with feeding helical blades 1-4, the upper end of the straight cylinder 1-1 is provided with a feeding port 1-2, the lower end of the straight cylinder 1-1 is provided with a discharging port 1-3, the feeding port 1-2 and the discharging port 1-3 are separated by a certain distance, and the pitch of the feeding helical blades towards one side of the discharging port 1-3 in the distance is gradually reduced, so that the effects of compressing materials and increasing the bulk density of the materials are achieved;

meanwhile, a discharging position is reserved at the rear side of the discharging port 1-3 in the straight cylinder 1-1, and the auger shaft is provided with the spiral blades 1-5 in the reverse rotation direction, so that the materials are prevented from being brought into the bearing mounting position of the auger shaft, the material leakage and the bearing clamping stagnation are caused, the deep extrusion effect on the materials can be improved, and the gas content in the materials is reduced.

Meanwhile, the straight pipe 1-1 is also provided with a buffer area 1-6 right above the discharge port 1-3, the upper end of the buffer area 1-6 can be opened, the effect is achieved that the extrusion space is made away for facilitating the extrusion of the material under the action of gravity, the density is increased, and the air extraction device is arranged for discharging redundant air in the material according to the property of the material; the third can also additionally set up compression equipment according to material nature, improves the extrusion effect to the material, and the fourth then is the clearance of conveniently overhauing.

A lifting cylinder 5 is fixedly connected to the top wall of the hooking platform frame 10, a driving shaft of the lifting cylinder 5 penetrates through the top wall of the hooking platform frame 10 and is connected with a hooking platform 7, and meanwhile, in order to improve the stability of the hooking platform 7, the hooking platform 7 is connected to the hooking platform frame 10 in a sliding mode through a plurality of lifting guide rails 6 distributed in a matrix mode;

the lower end of the hook platform 7 is connected with a plurality of packaging bag hooks 7-1 for hanging ton bags,

meanwhile, a control butterfly valve 3 is arranged on the discharge port 1-3 to control discharge; and the discharge port 1-3 is positioned at the lower end of the control butterfly valve 3 and is covered with an air bag clamp 9, and the air bag clamp 9 can clamp the opening of a ton bag, so that the sealing performance is improved.

The upper end of the air bag clamping device 9 is connected with the pipe wall of the discharge port 1-3 through the dust removal sleeve 4, the dust removal sleeve 4 is connected with the negative pressure system, redundant dust-containing air in the ton bag can be pumped out, and the air content is reduced.

In addition, a vibrator 8 is further arranged on the air bag clamping device 9, so that material wall hanging is reduced, and material conveying efficiency is improved.

The conveying compaction module comprises a conveying roller way 11, a conveying roller way motor 12, a vibration jacking platform 13, an air bag spring 14, a vibration motor 15, a sensor 16, a fixing platform 17 and a supporting frame 18.

Fixed station 17 fixes the lower extreme at couple platform frame 10, the upper end of fixed station 17 is connected and is driven same vibrations jack-up platform 13 through a plurality of air bag springs 14 and goes up and down, air bag springs 14 are connected with charging system, can realize aerifing the inflation and rise and the effect that bleeds and descend, vibrations jack-up platform 13 includes the connecting plate and connects a plurality of grudging posts on the connecting plate, the lower extreme of vibrations jack-up platform 13 is connected with a plurality of shock dynamo 15 that can vibrate the reality to the material, simultaneously owing to set up air bag springs 14 and also can reduce the vibration effect to fixed station 17.

Meanwhile, in order to prevent the vertical frame from shaking left and right to collide with the rotating roller, the fixed platform 17 and the connecting plate are also provided with the lifting guide rail 6, and the vertical vibration further improves the solid effect.

Couple platform frame 10 is connected with rollgang 11 on being located one section of connecting plate top, rollgang 11 includes that a plurality of commentaries on classics rollers that are in on the same plane constitute, and the grudging post interval is worn to establish between changeing the roller, 13 peak positions of vibrations jack-up platform are higher than rollgang 11 simultaneously, and 13 minimum point positions of vibrations jack-up platform are less than rollgang 11, thereby can realize breaking away from ton package bag and rollgang 11 at 13 highest positions of vibrations jack-up platform and carry out solitary vibrations and be real, reduce the damage to the motor.

Still be connected with rollgang motor 12 on the fixed station 17, rollgang motor 12's output shaft passes through chain sprocket assembly and drives a plurality of commentaries on classics rollers and rotate to the realization is to the transport of ton bag.

The below of fixed station 17 still is provided with parallel support frame 18, and be connected with a plurality of sensors 16 between fixed station 17 and the support frame 18, sensor 16 generally is weight sensor, weight sensor can weigh ton package bag as weighing module, can respond to ton package bag through sensor 16 and whether fall down, sensor 16 and rollgang motor 12, gas system and shock dynamo 15 electric connection, sensor 16 is as rollgang motor 12, inflation system and shock dynamo 15's trigger device, can realize the effect of carrying and weighing the dun real of vibrations of ton package bag automatically.

This packing scale material gets into pay-off spiral 1 when packing begins, and the spiral feed inlet is full of the material this moment, and the starting switch is stirred to the operative employee, and lift cylinder 5 moves, and the lever stretches out, drives couple platform 7 downward motion. After the cylinder action is finished, after the hook platform 7 is stable, an operator hangs the ton bag hanging rope on the hook, the bag opening is sleeved on the air bag clamping bag, the bag clamping switch is switched, the air bag clamping device 9 is inflated and opened, the manual bag hanging process is finished, and the hook platform 7 drives the ton bag to ascend under the action of the lifting cylinder 5. According to a start button, the system PLC controls the feeding servo motor 2 to operate quickly, materials are conveyed into a ton bag, meanwhile, when the weight of the materials reaches a certain weight, the system sends out signals, the servo system operates at a low speed, middle-level feeding is carried out and the materials slowly descend, and finally after the required weight is reached, the materials enter a 5Hz ultralow-speed operation spiral to ensure the final precision requirement;

after a series of actions are finished, when the materials in the ton bag reach a set weight value, the material cutting cylinder acts, and the material passing channel is closed; and dust removal sleeve 4 connects negative pressure system in the charging process, carries out the degasification in the packaging process, reaches the requirement that reduces the dust and reveals. In the feeding process of the precursor ton bag scale, the vibrator 8 at the bag clamping device acts intermittently to ensure that the material passing channel does not hang materials. After the feeding process is finished, the cylinder in the packaging bag hook 7-1 and the air bag clamp 9 act to automatically remove the bags from the ton bags.

After the ton bag scale finishes the packaging process, the system gives a signal, the air bag spring 14 acts to drive the vibration jacking platform 13 to jack upwards, and after the ton bag is separated from the conveying roller way 11, the vibration motor 15 acts to tamp the ton bag filled with the precursor materials and discharge redundant gas. After the jolt process is finished, the air airbag spring 14 contracts, the vibration jacking table 13 descends, the ton bag is placed on the conveying roller way 11, the conveying roller way motor 12 obtains signal action, and the precursor ton bag is conveyed out. And finishing the ton package packaging process of the single-bag precursor.

The packing scale completes the functions of feeding, metering and packing through the improvement of the structure, the application of materials and the cooperation of automatic control; meets the special requirements of the precursor battery industry.

The working principle is as follows: through the frequency conversion of the feeding screw 1 and the servo adjustment of the number of turns, the lifting cylinder 5 is matched with the guide rail system, the conveying system is vibrated, and meanwhile, through controlling materials, the special requirements of packaging of precursor battery materials are met.

This application is the purpose that satisfies measurement, packing with prior art, because of the special requirement of its battery trade, and conventional packing scale can't satisfy the requirement, consequently carries out the pertinence design.

Structural brand-new design:

the packing scale adopts a transverse spiral as a feeding mode for powdery materials, and aims at the packing of the battery materials,

1-4 feeding helical blades are designed in a variable pitch mode, the pitch at the feeding port 1-2 is designed normally, and after the feeding helical blades enter the straight pipe 1-1, the pitch of the helical blades is reduced step by step, so that the effects of compressing materials and increasing the bulk density of the materials are achieved;

the air bag clamping device 9 adopts an air bag expanding type, and the structure has no rotating piece, so that the bag opening can be sealed in the packaging process, and the abrasion caused by the pin shaft can be reduced;

the application of the material is as follows:

in order to avoid the friction between materials and metal, the auger shaft, the feeding helical blades 1-4 and the reverse-rotation helical blades 1-5 are made of carburizing steel materials, the abrasion performance of the helix is enhanced, the abrasion strength can reach 80, and the inner wall of the straight cylinder 1-1 is sprayed with Teflon to avoid the friction between the helix and the shell in the operation process;

innovation of weighing structure form:

technical innovation of Ducheng ton bag materials:

Controlling dust in the packaging process:

and (3) controlling the precision:

in order to improve the packaging precision of the packaging system, the feeding screw 1 is controlled by a servo system, the screw speed and the number of turns of rotation are controlled in a programming mode, and the packaging precision is ensured by multi-stage control of speed in several sections and turns; besides, a pneumatic control butterfly valve 3 is additionally arranged at the spiral discharge hole to control the feeding state of the materials, so that the packaging precision of the materials is further ensured;

the purpose is the measurement packing problem of precursor, through to packing scale material, structural control, makes the furthest extrusion of precursor material in packaging process, reduces air content, dust content, reduces or avoids contact metal simultaneously to arouse the risk of polluting the material, the device design is simple, and the material application is extensive, and is with strong points, and is big to the novel precursor battery trade demand in existing market, and development value is high.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The precursor ton package scale is characterized by comprising a hook platform frame;

the feeding packaging module comprises a feeding screw, the feeding screw comprises a straight cylinder, an auger shaft is arranged in the straight cylinder, a feeding helical blade is connected to the auger shaft, a feeding port and a discharging port are respectively arranged at the upper end and the lower end of the straight cylinder, the feeding port and the discharging port are separated by a certain distance, and the pitch of the feeding helical blade towards one side of the discharging port is gradually reduced within the distance;

the conveying erection module comprises a fixed table, the fixed table is fixed at the lower end of a hook platform frame, the upper end of the fixed table is connected through a plurality of air bag springs and drives the same vibration jacking table to lift, the vibration jacking table comprises a connecting plate and a vertical frame arranged on the connecting plate, and the lower end of the vibration jacking table is connected with a plurality of vibration motors;

2. The precursor ton packaging scale of claim 1, wherein: the auger shaft, the charging helical blade and the reverse-rotation helical blade are made of carburizing steel materials, and Teflon is sprayed on the inner wall of the straight cylinder.

3. The precursor ton packaging scale of claim 2, wherein: the straight pipe is located and still is provided with the buffer zone directly over the discharge gate, and the upper end of buffer zone can be opened.

4. The precursor ton packaging scale of claim 2, wherein: the straight cylinder adopts horizontal design, the auger shaft passes through the straight cylinder and is connected with feeding servo motor.

5. The precursor ton packaging scale of any one of claims 1-4, wherein: the upper end of the air bag clamping device is connected with the pipe wall of the discharge port through a dust removal sleeve, the dust removal sleeve is connected with a negative pressure system, and a vibrator is further arranged on the air bag clamping device.

6. The precursor ton packaging scale of claim 5, wherein: the air bag spring is connected with an inflation system, and the effects of inflation, expansion and air exhaust can be achieved.

7. The precursor ton packaging scale of claim 5, wherein: the couple platform is through a plurality of lifting guide sliding connection that are matrix distribution on couple platform frame, is provided with lifting guide on fixed station and the connecting plate equally.

8. The precursor ton packaging scale of claim 7, wherein: the fixed table is also connected with a conveying roller way motor, and an output shaft of the conveying roller way motor drives the plurality of rotating rollers to rotate through the chain and chain wheel assembly.

9. The precursor ton packaging scale of any one of claims 6-8, wherein: the below of fixed station still is provided with parallel support frame, and is connected with a plurality of sensors between fixed station and the support frame, and the sensor generally is weighing transducer, sensor and rollgang motor, gas system and shock dynamo electric connection.

10. The precursor ton packaging scale of claim 9, wherein: the air bag clamping device adopts an air bag expanding type.