CN108688912B

CN108688912B - Multi-specification particle screening synchronous packaging line and screening synchronous packaging method thereof

Info

Publication number: CN108688912B
Application number: CN201810402997.1A
Authority: CN
Inventors: 陈建宝; 周飞
Original assignee: Suzhou Honbest Clean Technology Co ltd
Current assignee: Suzhou Honbest Clean Technology Co ltd
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2023-05-05
Anticipated expiration: 2038-04-28
Also published as: CN108688912A

Abstract

The invention discloses a multi-specification particle screening synchronous packaging line and a screening synchronous packaging method thereof, wherein the packaging line comprises a multi-stage screening device, particles are classified by a screen with at least two stages of mesh apertures which are sequentially increased through vibration conveying, and each type of particles meeting the size standard are output from an independent feeding line; the automatic packaging equipment at least comprises feeding speed doubling lines which are matched with the number of the feeding lines and correspond to each other one by one, each feeding speed doubling line is movably provided with a tooling plate which can be used for receiving particles output by the feeding line, and each feeding speed doubling line is further provided with a weighing station which can be used for measuring the weight of the particles received by each tooling plate in real time. The whole process automation of screening, weighing simultaneously of many specifications, bagging-off has been realized to this scheme, and degree of automation is high, very big improvement efficiency, and avoided manual operation and transportation in-process polycrystalline silicon granule's pollution, the effectual organic combination that has realized efficiency improvement, polycrystalline silicon quality improvement and enterprise human resource cost reduction.

Description

Multi-specification particle screening synchronous packaging line and screening synchronous packaging method thereof

Technical Field

The invention relates to the field of polysilicon processing, in particular to a multi-specification particle screening synchronous packaging line and a screening synchronous packaging method thereof.

Background

With the rapid development of solar cells and solar power generation industry, the prospect and market share of solar grade polysilicon are increasingly stronger, and in the polysilicon processing process, the batch sorting of polysilicon particles is a long-standing troublesome problem for most polysilicon enterprises.

The existing sorting mode mainly comprises the steps of sieving crushed polysilicon particles through a first sieving line to obtain silicon materials of a first medium specification, then transferring the residual silicon materials on a collecting and sieving line to a second sieving line to obtain silicon materials of a second specification, and sequentially circulating to obtain the silicon materials of different specifications.

The screening mode has the advantages of high labor intensity, low efficiency and long processing time, not only increases the human resource cost of enterprises, but also is not matched with the current modern operation and operation modes.

Meanwhile, as a plurality of transferring processes are needed in the sieving process, the probability of pollution of polysilicon particles is greatly increased in the transferring process, and the quality of products is reduced.

After sieving, each type of polysilicon granules is required to be weighed, bagged, packaged and the like, and the polysilicon granules meeting the weight standard are weighed manually mainly by an electronic scale and the like and then are packaged into PE packaging bags in the prior operation.

This further increases the cost of labor, and degree of automation is low, and is inefficiency, and the manual weighing has also further increased the possibility that polycrystalline silicon pollutes simultaneously.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a multi-specification particle screening synchronous packaging line and a screening synchronous packaging method thereof.

The aim of the invention is achieved by the following technical scheme:

multiple specification particulate screening synchronous packaging line includes

The multi-stage screening equipment classifies the particles through a screen with sequentially increased vibrating conveying and at least two stages of mesh apertures, and outputs each type of particles meeting the size standard from an independent feeding line;

the automatic packaging equipment at least comprises feeding speed doubling lines which are matched with the feeding lines in number and in one-to-one correspondence, each feeding speed doubling line is movably provided with a tooling plate capable of receiving particles output by the feeding lines, and each feeding speed doubling line is further provided with a weighing station capable of measuring the weight of the particles received by each tooling plate in real time.

Preferably, in the synchronous baling line of many specifications particulate matter screening, multistage screening equipment includes the vibration screening line, the clearance is provided with first screen cloth, second screen cloth and the third screen cloth that the mesh aperture increases in proper order between the end to the head end on the vibration screening line, the below of the end of second screen cloth, third screen cloth and vibration screening line is provided with the transfer chain respectively, every the feed opening below of transfer chain is provided with electromagnetic feeder.

Preferably, in the multi-specification particulate screening synchronous packaging line, the tail end of the vibrating screen line comprises two parallel conveying branches, and each conveying branch is connected with a conveying line.

Preferably, in the multi-specification particle screening synchronous packaging line, the vibrating screen line, the conveying line and the electromagnetic feeder are respectively connected with the supporting frame through damping devices.

Preferably, in the multi-specification particulate screening synchronous packaging line, the automatic packaging equipment further comprises

Storing at least rough weight data and/or a difference value between rough weight and standard weight of the articles on each tooling plate measured by the weighing station by using a two-dimensional code or a bar code or an RFID tag;

and the fine counterweight station acquires the rough weight and/or the difference value between the rough weight and the standard weight of the corresponding article on the tooling plate through identifying the two-dimensional code or the bar code or the RFID tag, and supplements the difference value between the rough weight and the standard weight through powder.

Preferably, in the multi-specification particle screening synchronous packaging line, each feeding speed doubling line, the converging and diverging speed doubling line, the processing speed doubling line and the returning speed doubling line are matched together to form a closed conveying line, and the tooling plate moves between the two matched speed doubling lines through the jacking type transfer machine.

Preferably, in the multi-specification particle screening synchronous packaging line, two processing speed doubling lines are provided, and the fine counterweight station is arranged at each processing speed doubling line.

Preferably, in the multi-specification particle screening synchronous packaging line, the return speed doubling line comprises a buffer section and a shunt section, and the tooling plate moves between the buffer section and the shunt section through the jacking type transfer machine.

Preferably, in the multi-specification particle screening synchronous packaging line, the multi-specification particle screening synchronous packaging line further comprises a vacuum sealing machine, and PE packaging bags which are used for containing particles in the accommodating boxes of the tool plates and pass through the fine weighing stations can be sealed.

Preferably, the multi-specification particle screening synchronous packaging line further comprises a blanking station, and the particles at least subjected to fine weighing are removed from the tooling plate through manual or automatic equipment.

Preferably, the multi-specification particulate screening synchronous packaging line further comprises a PE packaging bag feeding station, and the opened PE packaging bag is placed on a blanking tooling plate through manual or automatic equipment.

The synchronous packing method for sieving and sieving the granular matters with multiple specifications comprises the following steps of

S9, driving the particles to be divided into particles with different specifications by the multistage screening equipment through a vibration conveying principle, and respectively taking one particle meeting the size requirement for feeding by a plurality of feeding lines;

s1, moving the tooling plate on each feeding speed doubling line to a weighing station, feeding each feeding line to the tooling plate on the corresponding weighing station respectively, and stopping feeding when the weight measured by the corresponding weighing station in real time reaches a set value.

The technical scheme of the invention has the advantages that:

this scheme design is exquisite, simple structure, through setting up multistage screen cloth and combining vibration conveying structure, can effectually realize the automatic screening and the categorised transport of the polycrystalline silicon granule of different specifications, simultaneously combine the frock board that can remove on doubly fast line to connect the material, through weighing station real-time measurement connect the weight of material, the whole process automation of screening, weighing, bagging-off has been realized, and the polycrystalline silicon granule of many specifications weighs simultaneously, the bagging-off, degree of automation is high, the efficiency improves greatly, do not need manual operation simultaneously, and the process of transporting many times among the prior art has been saved, the pollution of polycrystalline silicon granule has been avoided manual operation and transportation in-process, the effectual efficiency improvement that has realized, polycrystalline silicon quality improves and the organic combination that enterprise manpower resource cost reduces.

The tooling plate moves and circulates between different stations through the double-speed line, coarse and heavy particles on the tooling plate can be obtained in real time by combining the weighing device and stored in the two-dimensional code or the bar code or the RFID tag, coarse and heavy information recorded by the two-dimensional code or the bar code or the RFID tag is obtained through the code scanning equipment, the identifier and the like, so that the standard weight is accurately supplemented through powder, the weighing and the powder supplementing are carried out twice, the repeated adjustment process is avoided, the rapid weighing and the accurate unification of the weight of the polysilicon particles are effectively realized, and the degree of automation is high.

The reasonable layout of a plurality of doubly fast lines not only makes the beat of working between each doubly fast line can effectively cooperate, and the efficiency of bagging-off, weighing and sealing is improved to the maximum extent, makes equipment overall structure more compact simultaneously, practices thrift occupation space.

The automatic sealing machine is combined, the functions of equipment are effectively enriched, and the whole process automation of bagging and packaging of polysilicon is further realized.

Combine automatic unloading equipment, can enough abundant realization automation unloading, simultaneously through the reasonable setting to unloading robot, can effectually carry out the centre gripping with the main part region of bagged article through four splint cooperations, thereby avoid the condition that the bagged article appears the wobbling in the removal in-process, the effectual stability of carrying that has guaranteed, and the seesaw formula splint can realize great clamping strength under less actuating force, thereby guarantee the firm nature of centre gripping, the cooperation work is carried with first clamp to the second clamping jaw, can improve the stability of centre gripping, provide dual assurance, in addition, the joining of two processing doubly fast line can fully compensate unloading robot's removal stroke not enough, realize the product unloading of two processing doubly fast on-line frock board through a unloading robot.

The clamping plate and the limiting plate are matched to effectively limit the position of the PE packaging bag after sealing in the clamping space, so that the possibility that the PE packaging bag falls from the inlet end is reduced, and the effectiveness and reliability of carrying are ensured.

The jacking device is movably abutted against the clamping plate and the clamping plate is detachably connected with the pivot connecting piece, so that the clamping plate is convenient to maintain when damaged.

The roof on the splint can be effectual with support piece cooperation limited splint's rotation stroke to reduce splint from the rotation angle of first state to the second state, improve the centre gripping speed, realized the efficient and stable effective combination of centre gripping.

Drawings

FIG. 1 is a schematic view of the structure of the present invention with the weighing station covered;

fig. 2 is a perspective view of an automatic screening apparatus for multi-sized polysilicon granules of the present invention;

FIG. 3 is a schematic view of the automatic packaging apparatus of the present invention;

FIG. 4 is a perspective view of a feed multiplier line of the present invention;

FIG. 5 is a perspective view of a converging and diverging multiple speed line of the present invention;

FIG. 6 is a perspective view of the PE bag filled with polysilicon granules of the present invention after being sealed;

FIG. 7 is a side view of the blanking robot of the present invention;

FIG. 8 is a perspective view of a blanking robot of the present invention holding bagged articles;

FIG. 9 is a perspective view of the present invention with the rack removed of the blanking robot without the bagged articles clamped;

FIG. 10 is an enlarged side view of the first jaw and second jaw areas of the blanking robot;

FIG. 11 is an enlarged view of area A of FIG. 9;

FIG. 12 is a perspective view of a buffer segment of the present invention;

fig. 13 is a perspective view of a diverter stage of the present invention.

Detailed Description

The objects, advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the invention, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the invention.

In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.

The multi-specification particulate screening synchronous packaging line disclosed by the invention is described below with reference to the accompanying drawings, as shown in fig. 1, and comprises

The multi-stage screening apparatus 300 classifies the particulate matters by vibrating the screen with at least two stages of mesh holes having sequentially increased diameters, and outputs each type of particulate matters conforming to the size standard from an independent feed line;

the automatic packaging equipment 1000 at least comprises feeding speed doubling lines 101 which are matched with the feeding lines in number and in one-to-one correspondence, each feeding speed doubling line 101 is movably provided with a tooling plate 20 capable of receiving the particles output by the feeding line, and each feeding speed doubling line 101 is also provided with a weighing station 30 capable of measuring the weight of the particles received by each tooling plate 20 in real time.

As shown in fig. 2, the automatic screening device for multi-specification polysilicon particles includes a vibrating screen line 1, a first screen 2, a second screen 3 and a third screen 4 with sequentially increased mesh apertures are disposed in a gap between a head end 11 and a tail end 12 (in the explanation of this document, the right side is the front end and the left side is the rear end in fig. 3) of the vibrating screen line 1, and conveying lines 5 are respectively disposed below the second screen 3, the third screen 4 and the tail end 12 of the vibrating screen line 1.

When polysilicon particles are put in from the front end of the vibrating screen line 1, the polysilicon particles are driven by the vibrating screen line 1 to move towards the rear end, when the polysilicon particles pass through the first screen 2, smaller particles such as powder are firstly leaked out of meshes of the first screen 2, other particles which are not leaked out continue to move under the driving of the vibrating screen line 1, and when the polysilicon particles pass through the second screen 3, the particles smaller than the meshes of the second screen are leaked out of the meshes to corresponding conveying lines 5 for conveying; and when the rest polysilicon particles are driven by the vibrating screen line 1 to move to the third screen 4, the particles smaller than the mesh aperture of the third screen are leaked from the meshes to the corresponding conveying line 5 for conveying, and finally the rest polysilicon particles fall from the tail end 12 of the vibrating screen line 1 to the corresponding conveying line 5 for conveying.

In a preferred embodiment, as shown in fig. 2, the vibrating screen line 1 includes a first vibrating conveyor line 13 and a second vibrating conveyor line 14, which may be known various vibrating conveyor lines, and are not described herein, and the end of the first vibrating conveyor line 13 is an open structure and is located above the second vibrating conveyor line, and the first screen 2 is located on the first vibrating conveyor line 13, and an inverted frustum-shaped collecting cover 15 is disposed below the first screen 2, and the outlet end of the collecting cover 15 is located above the corresponding conveyor line 5; the second and third screens are located on the second vibrating conveyor line 14, below which are also provided collecting hoods 15, which collecting hoods 15 assume the shape of large openings and small outlets, and the outlets are located above the respective conveyor lines 5.

In addition, since the particles with a size larger than the mesh size of the third screen mesh are the main size of the product during the screening process, the number of the particles is relatively large, if the particles are output from only one outlet, the risk of stacking overflow is easy to occur, correspondingly, as shown in fig. 2, the tail end of the vibrating screen line 1 comprises two parallel conveying branches 121, the extending lengths of the two conveying branches 121 are different, and each conveying branch 121 is connected with one conveying line 5, so that the polysilicon particles remained after passing through the third screen mesh can fall into the respective conveying line 5 from two routes for conveying, thereby improving the conveying efficiency.

Further, the conveying lines 5 are electromagnetic vibration feeders, and as shown in fig. 2, an electromagnetic feeder 6 is disposed below the feed opening 51 of each conveying line 5, and the distance between the feed opening 51 of the conveying line 5 corresponding to the second screen 3 and the conveying surface of the electromagnetic feeder 6 is smaller than the distance between the feed opening 51 of the conveying line 5 corresponding to the third screen 4 and the conveying surface of the electromagnetic feeder 6 is smaller than the distance between the feed opening 51 of the conveying line 5 corresponding to the conveying tributary 121 and the conveying surface of the electromagnetic feeder 6.

Finally, the vibrating screen wire 1, the conveying line 5 and the electromagnetic feeder 6 are respectively connected with the supporting frame 8 through the damping device 7, the damping device 7 is preferably a spring, as shown in fig. 2, and the vibrating screen wire 1, the conveying line 5 and the electromagnetic feeder 6 are respectively connected with the four supporting rods of the supporting frame 8 through four springs which are in rectangular distribution, so that the cushioning of equipment is realized.

Although in the preferred solution, the multi-specification synchronous weighing and bagging after multi-stage sieving is a great innovation point of the solution, the multi-specification synchronous weighing and bagging requires that the automatic packaging device 1000 needs a plurality of feeding double-speed lines to cooperate with the feeding double-speed lines, and in the general structure, the automatic packaging device 1000 can also only carry out single-path bagging and packaging, thus the specific structure of the general automatic packaging device 1000 is described below.

As shown in fig. 3 and fig. 4, the automatic packaging apparatus 1000 includes a circulating conveyor line 10, a set of tooling plates 20 capable of placing particles and being driven to move in a circulating manner are disposed on the circulating conveyor line 10, in a preferred embodiment, bagging of polysilicon particles is taken as an example, a containing box 201 for placing the PE packaging bag 70 is disposed on the tooling plates 20, the containing box 201 may have various possible structures, and of course, in other embodiments, the upper surface of the tooling plates 20 may have a groove-shaped structure, etc., and the particles may be directly placed on the tooling plates 20 without placing the PE packaging bag 70.

The automatic packaging apparatus 1000 further includes the weighing station 30, which at least includes a jacking weighing device, and can obtain the coarse weight of the particulate matter on the tooling plate 20 located thereon;

the two-dimensional code or bar code or RFID label at least stores the coarse weight data and/or the difference value between the coarse weight and the standard weight of the particulate matters on each tooling plate 20;

the fine weighting station 40 obtains the rough weight and/or the difference value between the rough weight and the standard weight of the particles on the corresponding tooling plate 20 by identifying the two-dimensional code or the bar code or the RFID tag and supplements the difference value between the rough weight and the standard weight by powder.

When the tooling plate 20 moves on the circulating conveyor line 10 to switch between different stations, when the tooling plate 20 moves to a jacking type weighing device at the weighing station 30, polysilicon particles begin to be added to PE packaging bags 70 on the tooling plate 20, the jacking type weighing device can measure the weight of the added polysilicon particles in real time, when the weight is close to a standard value or a set value, the adding of the polysilicon particles is stopped, the obtained weight is the weight of the polysilicon particles, the difference between the weight data and the standard weight is stored in a two-dimensional code or a bar code or an RFID tag, and the two-dimensional code or the bar code or the RFID tag is arranged on each tooling plate 20 or attached to the PE packaging bags 70 containing the polysilicon particles corresponding to the weight.

When the two-dimensional code or the bar code or the RFID tag is arranged on the tooling plate 20, the two-dimensional code or the bar code or the RFID tag also stores the information of the tooling plate 20 where the two-dimensional code or the bar code or the RFID tag is positioned, and correspondingly, an identification device (not shown in the figure) and a control device (not shown in the figure) for reading the information of the two-dimensional code or the bar code or the RFID tag are also arranged at the weighing station 30, so that after the lifting type weighing device measures the coarse weight data, the two-dimensional code or the bar code or the RFID tag can be bound through the identification of the two-dimensional code or the bar code or the RFID tag, and the tooling plate is convenient for reading the data during the operation of the subsequent fine weight station 40.

When the two-dimensional code or the bar code or the RFID tag is arranged on the PE packaging bag 70, the PE packaging bag further comprises a rough and heavy label manufacturing and pasting machine connected with the jacking type weighing device, the rough and heavy label manufacturing and pasting machine receives rough and heavy data measured by the jacking type weighing device, generates a two-dimensional code or the bar code or the RFID tag or the graphic mark for recording the difference value between the rough and heavy data and the standard weight, and pastes the two-dimensional code or the bar code or the RFID tag or the graphic mark on the PE packaging bag 70 in the accommodating box.

The tooling plate 20 loaded with polysilicon particles is moved to the fine-weighing station 40 to stop under the drive of the circulation conveyor line 10, where coarse-weight data and/or the difference between coarse weight and standard weight are obtained by identifying the corresponding two-dimensional code or bar code or RFID tag by manual or automated equipment, and then the difference is compensated by weighing polysilicon powder of the corresponding difference weight.

Specifically, as shown in fig. 3, the circulating conveyor line 10 includes a feeding double-speed line 101, a converging and diverging double-speed line 102, a processing double-speed line 103 and a returning double-speed line 104 which are sequentially connected in a closed line, wherein the feeding double-speed line 101 is parallel to the processing double-speed line 103 and perpendicular to the converging and diverging double-speed line 102 and the returning double-speed line 104, and the conveying plane of the feeding double-speed line 101 and the processing double-speed line 103 is not lower than the top heights of the converging and diverging double-speed line 102 and the returning double-speed line 104, which can be set reversely, and the tooling plate 20 can move along the extending direction of the double-speed line under the driving of each double-speed line.

Under normal conditions, the tooling plate 20 cannot smoothly move from one independent double-speed line to another independent double-speed line, and correspondingly, in the scheme, as shown in fig. 3, the tooling plate 20 moves between two adjacent double-speed lines through the jacking type transfer machine 50, specifically, as shown in fig. 3 and fig. 5, a belt type conveying line with the transfer direction identical to the conveying direction of the feeding double-speed line 10 is arranged at the position of the joint point of the converging and diverging double-speed line 102 and the feeding double-speed line 101, and the belt type conveying line is arranged on the jacking mechanism, so that the conveying surface of the belt type conveying line is equal to the conveying surface of the feeding double-speed line 101, thereby effectively bearing the tooling plate 20 conveyed by the feeding double-speed line.

The structure and principle of the transfer of the tooling plate 20 between other speed doubling lines are the same as the transfer structure between the feeding speed doubling line 101 and the converging and diverging speed doubling line 102 described above, and will not be described again here.

As shown in fig. 3 and fig. 4, the weighing station 30 is disposed at the feeding speed doubling line 101, and in actual operation, when each tooling plate 20 moves above the weighing station 30, the lifting type weighing device is lifted and suspended by contacting with the tooling plate 20, so that the weight of polysilicon particles added into the PE packaging bag 70 can be measured, and a blocking device 80 for blocking the tooling plate 20 is disposed at a position gap of each feeding speed doubling line 101, which is located at and/or in front of the weighing station 30.

In order to match the automatic screening device 300 for multi-specification polysilicon granules to screen, bag, weigh and package the multi-specification polysilicon granules at the same time, as shown in fig. 3, the feeding speed doubling lines 101 are at least 3 and are arranged in parallel, preferably 4, and a discharge end of one electromagnetic feeder 6 in the automatic screening device 300 for multi-specification polysilicon granules is arranged above the weighing station 30 at each feeding speed doubling line 101.

As shown in fig. 3 and fig. 5, the merging and splitting double-speed line 102 can receive the tooling plates 20 conveyed by the four feeding double-speed lines 101 and sequentially convey the tooling plates to the processing double-speed line 103, and meanwhile, in order to avoid the problem that the tooling plates 20 may rush out of the jacking type transfer machine 50 arranged at the merging and splitting double-speed line 102 due to inertia and other reasons in the transfer process, as shown in fig. 3 and fig. 5, a buffer blocking device 1021 is further arranged at one side of the merging and splitting double-speed line 102 away from the feeding double-speed line 101.

As shown in fig. 3, the fine counterweight station 40 is disposed at the processing speed doubling line 103, a manual or mechanical hand or the like holding a code scanning gun or an RFID identifier or the like may be used at the fine counterweight station 40 to perform code scanning and identifying actions, so as to obtain the difference value of the coarse weight and/or the standard weight of the polysilicon particles on the tooling plate 20, and then the polysilicon powder with the corresponding weight difference value is weighed by an electronic scale and placed in a corresponding PE packaging bag 70, or the tooling plate is directly moved to a jacking type electronic scale, and the polysilicon powder is directly added to the standard weight; when manually operated, the fine weighting station 40 may include a display device or a voice device, a two-dimensional code or a bar code or an identification device of an RFID tag, an electronic scale, a polysilicon powder scooping tool, and the like, and polysilicon powder.

In the preferred embodiment, as shown in fig. 3, the processing double-speed lines 103 are 2 parallel lines, each processing double-speed line 103 is provided with the fine counterweight station 40, and the two fine counterweight stations 40 can double-increase the rate of fine counterweight when working simultaneously, and match with the feeding rhythms of the feeding double-speed lines 101, so that the aggregation of the plurality of tooling plates 20 at the confluence and diversion double-speed lines 102 is avoided.

In addition, since there are multiple tooling plates 20 on the merging and splitting double-speed line 102, it is necessary to control the time when each tooling plate 20 enters into two processing double-speed lines 103, specifically, as shown in fig. 3 and 5, a group of blocking devices 80 are arranged at the merging and splitting double-speed line 102 in a gap, and when the fine counterweight station 40 on any processing double-speed line 103 is idle, one tooling plate 20 can pass through and be transferred onto the corresponding processing double-speed line 103 through the blocking devices 80; of course, at least one blocking device 80 may be disposed at the same time or just before the fine counterweight station 40 on the machining speed doubling line 103, so as to control the tooling plate 20 to enter the fine counterweight station 40 sequentially, and meanwhile, the tooling plate 20 in the area may be divided into a plurality of areas to be controlled separately, and the blocking device 80 may be a rotary blocking mechanism or a jacking blocking structure, which is not repeated.

As shown in fig. 3, a vacuum sealing machine 60 for sealing the PE packaging bag 70 after the fine weighting station 40 is further disposed at the processing speed doubling line 103, where the vacuum sealing machine 60 may have various known structures, which are not described in detail in the prior art, and the sealed PE packaging bag becomes a bagged article 98 as shown in fig. 6.

After the sealing is completed, the bagged articles 98 on the two processing speed doubling lines 103 need to be moved out of the tooling plate 20, so that the tooling plate 20 moves to the jacking weighing device again for loading, correspondingly, as shown in fig. 3, a blanking station 100 is further included, the bagged articles 98 after the fine counterweight are moved out of the tooling plate 20 through manual or automatic equipment, preferably, the two processing speed doubling lines 103 pass through a blanking robot blanking 9, wherein the blanking robot 9 comprises a six-axis robot and a first clamping jaw and a second clamping jaw which are arranged at the moving ends of the six-axis robot, the first clamping jaw clamps the main body part of the bagged articles 98 on the tooling plate, and the second clamping jaw clamps the sealing area of the articles on the tooling plate.

As shown in fig. 7 and 8, the six-axis robot 91 is disposed on a frame 99, and the six-axis robot 91 may be a known six-axis joint robot, which is a known technology and will not be described herein.

As shown in fig. 7-9, the free moving end 911 of the six-axis robot 91 is coupled to a first clamping jaw 92, the first clamping jaw 92 including at least four clamping plates 921 extending a length and being rectangular in distribution,

in the first state, the holding surfaces 9211 of the several clamping plates 921 form a trapezoid holding space 910 with a large front end opening and a small rear end opening;

in the second state, the holding surfaces 9211 of the several clamp plates 921 form a trapezoidal holding space 910 with a small front end opening and a large rear end opening.

When the PE packaging bag is not required to be carried, the PE packaging bag is in the first state, the six-axis robot 91 drives the first clamping jaw 92 in the first state to integrally move to the position of the packaged article 98 to be carried, the packaged article 98 enters the trapezoid clamping space 910 formed among the clamping plates 921, then the four clamping plates 921 are switched from the first state to the second state, at the moment, the PE packaging bag between the clamping plates 921 is clamped by the four clamping plates 921 together, and the packaged article 98 has no moving freedom in the moving process because the four clamping jaws clamp the whole main body area of the packaged article 98, so that shaking is avoided.

In detail, as shown in fig. 7 and 8, the first clamping jaw 92 is connected to the free moving end 911 of the six-axis robot 91 through a supporting frame 97, the supporting frame 97 includes a connecting plate 971 and a set of support posts 972 vertically arranged on the outer surface of the connecting plate 971, the top end of the support posts 972 is connected with a mounting plate 73, and the first clamping jaw 92 is arranged on the mounting plate 973.

The number of the clamping plates 921 is preferably four and two by two, so that the clamping stability is kept, the structure is simplified and the cost of parts is reduced to the greatest extent, and the number of the clamping plates 921 can be more or less in other embodiments, but the number of the clamping plates 921 is not less than three, and the layout mode of the clamping plates can be staggered and opposite.

And, as shown in fig. 6 and 10, the clamping plates 921 are rectangular flat plates, and a limiting plate 926 having an angle a between 150 ° and 180 ° is formed at the front end thereof, and their extending length h is not less than the distance g from the sealed end to the bottom of the bag article 98, so that the whole PE package can be completely entered into the holding space 910 formed by them, and when the clamping plates 921 are switched to the second state, the width L of the open ends of the two opposite clamping plates 921 on the same side is greater than the width M of the open ends of the two limiting plates 926, so that when each clamping plate 921 clamps the PE package, the limiting plates 926 cooperate to limit the PE package from falling from the holding space 910, thereby further ensuring the reliability of the clamping.

In a preferred embodiment, as shown in fig. 11, each of the clamping plates 921 is pivotally connected to the supporting member 922 at a region near the distal end, the pivotal connection member 922 is pivotally connected to a connection member 928 provided on the clamping surface 9211 of the clamping plate 921, the connection member 928 is bolted to the clamping plate 921, and the clamping plate 921 is provided with a waist-shaped hole 9212 for connection with the connection member 928, so that the connection position of the connection member 928 to the clamping plate 921 can be adjusted.

And, as shown in fig. 10, each clamping plate 921 is driven to rotate and switch between a first state and a second state by a jacking device 923 and a resetting device 924, wherein the jacking device 923 is a jacking cylinder, and a piston rod 9231 of the jacking cylinder is pivotally connected or not connected with the clamping plate 921, preferably not connected with the clamping plate 921, so that the clamping plate 921 is convenient to assemble, and meanwhile, when the clamping plate 921 fails, the clamping plate 921 and the connecting piece 928 can be separated, so that quick replacement and maintenance can be performed, and meanwhile, the top end of the piston rod 9231 is hemispherical, so that the rotation of the clamping plate 921 can be facilitated, and the blocking situation is not easy to occur.

The return device 924 is a spring or a spring plate with one end connected to the end of the clamping plate and the other end connected to a fixing pin 925, wherein the fixing pin 925 is fixed to the back of the mounting plate 973.

Thus, when clamping is required, the end region of the clamping plate 21 is pushed by the ejection of the piston rod of the lifting cylinder, and at this time, the clamping plate 921 rotates around the rotation shaft connected with the pivot connecting member 922, that is, as shown in fig. 7, the two clamping plates 921 on the upper side rotate counterclockwise, the two clamping plates 921 on the lower side rotate clockwise, and at the same time, the springs connected with each clamping plate 921 are stretched, and at this time, the four clamping plates 921 are in the second state, that is, the clamping state; when the lifting cylinder needs to be opened, the piston rod 9231 of the lifting cylinder is retracted, and the clamping plate is reversely rotated and reset under the reaction force of the spring, so that the lifting cylinder is opened, namely, the lifting cylinder is restored to the first state.

Further, as shown in fig. 10, a baffle 927 is formed on the clamping surface of the distal end of each clamping plate 921 so as to be perpendicular thereto, and an upper surface 9271 of the baffle 927 may abut against the support member 922 during rotation of the clamping plates 921, so that an opening angle of the clamping plates 921 in the first state can be limited, and thus a rotation stroke of each clamping plate 921 can be reduced and a clamping rate can be increased when clamping is performed.

In addition, as shown in fig. 7 and 9, the blanking robot further includes a second clamping jaw 93, where the second clamping jaw 93 is used to clamp a top or bottom sealing area 981 of the bagged article 98, and is located in a middle position of four clamping plates 921 of the first clamping jaw 92 and is close to a lifting cylinder of the clamping plates 921, as shown in fig. 11, and specifically includes two oppositely disposed pressing plates 931, and driving devices 932 respectively driving them to move in opposite directions, where the driving devices 932 are cylinders respectively fixed on the front surface of the mounting plate 973, and the driving devices 932 drive the two pressing plates 931 to switch between maintaining a gap and mutual adhesion.

When clamping is needed, the two air cylinders respectively drive the pressing plates 931 connected with each other to move oppositely and clamp the sealing area at the top or bottom of the bagged article 98 between the two air cylinders, when the bagged article 98 needs to be put down, the two air cylinders drive the pressing plates 931 connected with each other to move back to not apply pressure to the sealing area at the top or bottom of the bagged article 98, so that the second clamping jaw 3 can be effectively matched with the first clamping jaw 2 to clamp the sealing area 981 and the main body area of the bagged article 98 completely, reliable clamping can be ensured even if one clamp fails, and double guarantee is achieved.

In addition, as shown in fig. 11, in order to ensure the firmness of the clamping of the second clamping jaw 93, anti-slip pads 933 are respectively arranged on the opposite surfaces of the two pressing plates 931, so that the anti-slip pads 933 can be anti-slip, and meanwhile, the relatively soft texture of the anti-slip pads 933 can also avoid damaging the sealing area of the bagged article 98.

Since the movement travel of the blanking robot 9 is limited, and as shown in fig. 3, the blanking robot is close to the outer machining double-speed line 104, so that the distance from the blanking robot to the inner machining double-speed line 104 exceeds the movement range, and the blanking of two machining double-speed lines cannot be performed by one blanking robot 9.

Then, as shown in fig. 3, the rear end portions 1031 of the two processing double speed lines 103 (i.e., the portions located at the rear of the vacuum sealing machine 60) are coupled by the transfer double speed line 105, and the tooling plate 20 is moved between them by the lift-up transfer machine 50, and the processing double speed line 103 near the outer side is communicated with the return double speed line 104, so that after the sealing of the PE package bags on the tooling plate 20 at the processing double speed line 104 on the inner side is completed, the tooling plate 20 is moved to the processing double speed line on the outer side, thereby making it possible to compensate for the shortage of the stroke of the blanking robot 9.

In the above description, the two-dimensional code or the bar code or the RFID tag may be fixed on each tooling plate 20 in one embodiment, so that after the sealed PE packaging bag is removed from the tooling plate 20, the two-dimensional code or the bar code or the RFID tag on the tooling plate 20 still stores the coarse weight data of the polysilicon particles in the removed PE packaging bag, so that when the empty tooling plate 20 is moved to the jacking weighing device for receiving the material, the coarse weight parameters of the currently connected polysilicon particles cannot be accurately stored, thus affecting the operation of the subsequent fine weighing station, and therefore, after the PE packaging bag 70 (the bagged article 98) filled with the polysilicon particles and sealed is removed, the coarse weight data recorded by the two-dimensional code or the bar code or the RFID tag on the tooling plate needs to be cleared, and correspondingly, a reading device capable of identifying the two-dimensional code or the bar code or the RFID tag is further included after the unloading, and the corresponding bar code plate 20 is determined by identifying the two-dimensional code or the bar code or the RFID tag, and the coarse weight data recorded by the two-dimensional code or the RFID tag on the tooling plate 20 is deleted.

When the two-dimensional code or the bar code or the RFID tag is attached to the PE packaging bag, after the PE packaging bag 70 on the tooling plate 20 is removed, the tooling plate 20 after blanking can be returned to the jacking type weighing device through the return speed doubling line 104 for receiving materials again because the coarse and heavy data are not bound with the tooling plate 20.

As shown in fig. 3, 12 and 13, the return speed doubling line 104 includes a buffer section 1041 and a shunt section 1042, and the tooling plate 20 moves between them through the jacking transfer machine 50, so that the buffer section 1041 is provided to prolong the moving stroke of the tooling plate after unloading, thereby avoiding the influence of too short stroke of the idle tooling plate 20 on shunting to each feeding speed doubling line 101 when only the shunt section exists, and the shunt section 1042 is matched with four feeding speed doubling lines 101.

As shown in fig. 12 and 13, a set of blocking mechanisms 80 capable of blocking the movement of the tooling plate 20 are disposed on the buffer section 1041 and the shunt section 1042 at intervals, for example, the blocking mechanisms 80 are disposed before each of the matching points of the shunt section and the four feeding double-speed lines 101, so as to control the movement of one tooling plate 20 to the corresponding jacking weighing device when the jacking weighing device in one feeding double-speed line 101 is idle, and the movement of the tooling plate 20 can be controlled in regions.

Meanwhile, the principle of the jacking type transfer machine 50 is the same as that described above, and because the buffer section 1041 and the shunt section 1042 are arranged side by side, the distance between the rails thereof is increased, as shown in fig. 3 and 12, so that a transition wheel 1043 is further arranged between them, specifically located on the buffer section 1041, and in addition, as shown in fig. 13, a buffer blocking device 1044 is further arranged on the shunt section 1042, so as to avoid the possibility that the tooling plate 20 slides out from the shunt section in the transfer process.

In addition, after the PE package is integrally removed from the tooling plate 20, the PE package 70 needs to be placed before being moved to the weighing station 30 again for loading, so, as shown in fig. 3 and 12, the buffer section 1041 further includes a PE package loading station 200, and the opened PE package 70 is placed on the tooling plate 20 after being blanked by manual or automatic equipment, and of course, the PE package loading station 200 may be also combined with a station for eliminating two-dimensional code storage coarse and heavy data on each tooling plate, or be independently set up, so long as the placement of the PE package 70 is completed after being blanked and before entering the weighing station 30.

In addition, since the tooling plate 20 and the PE packaging bag 70 have certain weights, in order to accurately obtain the weight of the polysilicon particles at the weighing station 30, as shown in fig. 3 and 12, a lifting weighing device 90 is further arranged at the buffer section 1041, and when the tooling plate 20 with the PE packaging bag 70 is moved to the lifting weighing device 90, the integral weight of the tooling plate 20 can be determined, so that when the tooling plate moves to the weighing station 30 at the feeding speed doubling line, the weight of the loaded polysilicon particles can be obtained by subtracting the weight determined at the lifting weighing device 90 from the real-time weight, and correspondingly, a reading device capable of identifying the two-dimensional code or the bar code or the RFID tag on the tooling plate is also required, so that the weight measured at the location and the two-dimensional code and the tooling plate can be bound with data.

Of course, since the weight of each tooling plate 20 and PE bag 70 is fixed, and their total weight is also fixed, the weight sums of tooling plates and PE bags 70 can be directly input to the control system or the jacking weighing device during the control process, so that the weight sums of tooling plates and PE bags need not be acquired by the jacking weighing device 90.

In addition, the jacking weighing device 90 may also be used to determine whether each tooling plate 20 has an untimely blanking or PE packaging bag 70 not placed thereon, so as to ensure subsequent operations.

In the running process of the whole equipment, each tooling plate 20 can be controlled to stop at the corresponding station by various blocking devices so as to perform various operations such as weighing, fine weighing, sealing, blanking, PE packaging bag adding and the like, and the operation can also be realized by stopping the speed doubling line where the tooling plates are positioned; meanwhile, the start and stop of equipment such as each jacking type weighing device, a jacking type transfer machine, a vacuum sealing machine, a blanking robot, a PE packaging bag feeding robot, blocking equipment, an electromagnetic feeder, a conveying line, a vibrating screen line and the like can be controlled through the combination of signals of various sensors and software programming, and in a preferred embodiment, the control of the whole system is performed through a PLC (programmable logic controller) connected with the sensors and other electrical equipment, and the details are omitted.

When the whole equipment works, the process is as follows:

s9, the automatic screening device 300 for multi-specification polysilicon particles drives the polysilicon particles to sequentially pass through three stages of screens through a vibration screening line so as to separate the polysilicon particles, wherein the first stage is powder, the powder can be used as raw materials for fine weighting, packaging is not needed, the particle sizes obtained by the two stages of screens after the powder are in accordance with the requirements, and the powder is respectively conveyed to an electromagnetic feeder 60 by a conveying line 5 to be fed.

S1, moving the tooling plate on each processing speed doubling line 101 to a jacking type weighing device of the weighing station 30 to stop, at the moment, starting feeding by a corresponding electromagnetic feeder 60, and stopping feeding by the electromagnetic feeder 6 when the jacking type weighing device weighs that the weight of the polycrystalline silicon particles is close to the standard weight or reaches the set weight, obtaining coarse weight data, identifying a two-dimensional code or a bar code or an RFID label on the tooling plate 20 by an identification device, and binding the coarse weight data with the tooling plate, the two-dimensional code or the bar code or the RFID label.

S2, moving the tooling plate 20 filled with materials and weighed to the fine counterweight station 40 through the current-combining and flow-dividing speed doubling line 102 and the processing speed doubling line 103, and acquiring the difference value between the coarse weight and/or the coarse weight and the standard weight by manual or automatic equipment through identification equipment identification two-dimensional codes or bar codes or RFID labels, and then supplementing the difference value between the coarse weight and the standard weight by adding corresponding amount of polycrystalline silicon powder to complete the fine counterweight.

S3, the tooling plate 20 after the fine counterweight is moved to a vacuum sealing machine 60 to seal PE packaging bags.

S4, the tooling plate 40 after finishing PE packaging bag sealing is moved to a blanking point, and blanking is carried out by a manual or blanking robot.

S5, recognizing the two-dimensional code or the bar code or the RFID label on the tool plate 20 after blanking through the recognition device, and deleting the rough data corresponding to the two-dimensional code or the bar code or the RFID label on the tool plate.

S6, the tooling plate 20 for removing the data is moved to the PE packaging bag feeding station 200, and PE packaging bags are added into the accommodating boxes through manual or automatic equipment.

S7, the tooling plate added with the PE packaging bag moves to the weighing station 30 again for loading.

S8, repeating the steps S1-S7.

The invention has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the invention.

Claims

1. Synchronous baling line of many specifications particulate matter screening, its characterized in that: comprising

A multi-stage screening device (300) for classifying the particles by vibrating and conveying the particles and at least two stages of screens with sequentially increased mesh diameters, and outputting each type of particles meeting the size standard from an independent feeding line;

the automatic packaging equipment (1000) at least comprises feeding speed doubling lines (101) which are matched with the feeding lines in number and correspond to each other one by one, a tooling plate (20) capable of receiving the particles output by the feeding lines is movably arranged on each feeding speed doubling line (101), and a weighing station (30) capable of measuring the weight of the particles received by the tooling plate (20) in real time is further arranged at each feeding speed doubling line (101); the multistage screening device (300) comprises a vibrating screen line (1), a first screen (2), a second screen (3) and a third screen (4) with mesh apertures increased in sequence are arranged in a gap between a head end (11) and a tail end (12) of the vibrating screen line (1), conveying lines (5) are respectively arranged below the second screen (3), the third screen (4) and the tail end (12) of the vibrating screen line (1), and an electromagnetic feeder (6) is arranged below a feed opening (51) of each conveying line (5); the tail end of the vibrating screen line (1) comprises two parallel conveying branches (121), and each conveying branch (121) is connected with a conveying line (5);

The automatic packaging apparatus (1000) further comprises:

storing at least rough weight data and/or a difference value between rough weight and standard weight of the articles on each tooling plate (20) measured by the weighing station (30) by using a two-dimensional code or a bar code or an RFID label;

and the fine counterweight station (40) acquires the rough weight and/or the difference value between the rough weight and the standard weight of the article on the corresponding tooling plate (20) through identifying the two-dimensional code or the bar code or the RFID tag, and supplements the difference value between the rough weight and the standard weight through powder.

2. The multi-format particulate screening synchronous packaging line of claim 1, wherein: the vibrating screen line (1), the conveying line (5) and the electromagnetic feeder (6) are respectively connected with the supporting frame (8) through the damping device (7).

3. The multi-format particulate screening synchronous packaging line of claim 1, wherein: each feeding speed doubling line (101) is matched with a converging and diverging speed doubling line (102), a processing speed doubling line (103) and a return speed doubling line (104) to form a closed conveying line, and the tooling plate (20) moves between the two matched speed doubling lines through a jacking transfer machine (50).

4. A multi-format particulate screening synchronous packaging line according to claim 3, wherein: the number of the processing double-speed lines (103) is two, and the fine counterweight station (40) is arranged at each processing double-speed line (103).

5. A multi-format particulate screening synchronous packaging line according to claim 3, wherein: the return speed doubling line (104) comprises a buffer section (1041) and a shunt section (1042), and the tooling plate (20) moves between the buffer section and the shunt section through the jacking type transfer machine (50).

6. A multi-format particulate screening synchronous packaging line according to claim 3, wherein: the PE packaging bag (70) which is used for containing particles and passes through the fine weighting station (40) in the containing box (201) of the tooling plate (20) can be sealed by the vacuum sealing machine (60).

7. A multi-format particulate screening synchronous packaging line according to claim 3, wherein: the device also comprises a blanking station (100) for removing the particles at least subjected to the fine weighting from the tooling plate (20) through manual or automatic equipment.

8. A multi-format particulate screening synchronous packaging line according to claim 3, wherein: the PE packaging bag feeding device further comprises a PE packaging bag feeding station (200), and the opened PE packaging bag is placed on a tool plate (20) after blanking through manual or automatic equipment.