CN209887945U - A stoving screening conveying system for PLA granule - Google Patents
A stoving screening conveying system for PLA granule Download PDFInfo
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- CN209887945U CN209887945U CN201920626223.7U CN201920626223U CN209887945U CN 209887945 U CN209887945 U CN 209887945U CN 201920626223 U CN201920626223 U CN 201920626223U CN 209887945 U CN209887945 U CN 209887945U
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- drying
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- 238000012216 screening Methods 0.000 title claims abstract description 39
- 239000008187 granular material Substances 0.000 title claims abstract description 31
- 238000001035 drying Methods 0.000 claims abstract description 31
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 12
- 238000005485 electric heating Methods 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000008188 pellet Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 11
- 238000000071 blow moulding Methods 0.000 description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920000426 Microplastic Polymers 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
A drying, screening and conveying system for PLA particles comprises a drying, screening and conveying mechanism and a transferring and conveying mechanism; the drying and screening mechanism comprises a vibrating screening device and a drying device, the vibrating screening device comprises a base, a powder lead-out groove, a first screen body and a second screen body, the discharge ends of the powder lead-out groove, the first screen body and the second screen body are respectively provided with a lower charging barrel, the lower charging barrels of the first screen body and the second screen body are arranged in a staggered mode, and the powder lead-out groove is inclined and is installed on the base through a group of springs; transport conveying mechanism includes the support frame, sets up chain conveyor, first guide slot, second guide slot, transport pot and travel switch on the support frame. The utility model has the advantages that: the granular materials are scattered, dried and then subjected to item screening, so that the granules are not sticky and the screening speed is high. The transportation speed is fast, and degree of automation is high, has avoided wasting time and energy of artifical transportation.
Description
Technical Field
The utility model relates to a mechanical equipment field, concretely relates to stoving screening conveying system for PLA granule.
Background
At present, in the production process of the PLA mulching film, the prepared raw materials are melted at high temperature in an extruder and extruded into filaments, the filaments are blown and cooled by a group of fans and then cut into particles in a granulator, and then different color concentrates are added to be used as raw materials of a blow molding machine for production; the multiple strips of filamentary materials entering the granulator are easily wrapped together due to uneven laying, and when the granules are cut, the granules are easily adhered to form large blocky granules, and meanwhile, the granules can also generate powder during cutting, and after the excessive powder enters the blow molding machine, the blockage is easily caused, and the blow molding quality is affected by uneven distribution after the large blocky granules enter the blow molding machine. The plastic granules cut by the granulator contain certain moisture, so that part of granules can be stuck together during screening, and the screening effect is influenced. The transportation conveyor of current PLA granule mostly is transported with the handcart for the staff, and work efficiency is lower like this, and wastes time and energy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned not enough, and provide a stoving screening conveying system for PLA granule.
The utility model comprises a drying and screening mechanism and a transferring and conveying mechanism;
the drying and screening mechanism comprises a vibrating screening device and a drying device, the vibrating screening device comprises a base, a powder lead-out groove, a first screen body and a second screen body, the discharge ends of the powder lead-out groove, the first screen body and the second screen body are respectively provided with a discharging barrel, the discharging barrels of the first screen body and the second screen body are arranged in a staggered mode, the powder lead-out groove is inclined and is installed on the base through a group of springs, the bottom of the powder lead-out groove is provided with a vibrating motor, and the second screen body and the first screen body are sequentially installed in the powder lead-out groove from bottom to top; the drying device comprises a shell, a group of electric heating plates and rollers, wherein a feed inlet is formed in the top of the shell, a discharging funnel is arranged at the bottom of the shell, the shell is installed on a base through a support frame, the group of electric heating plates are fixedly installed in the shell in an inclined staggered manner, a plurality of groups of scattering rods are uniformly and annularly distributed on the outer wall of each roller, each roller is movably installed in the shell through a pair of bearings and is driven to rotate by a motor and a speed reducer, each roller is located above the corresponding group of electric heating plates, and the drying device is located above;
the transfer conveying mechanism comprises a support frame, a chain conveyor arranged on the support frame, a first guide groove, a second guide groove, a transfer pot and a travel switch; the first guide groove, the second guide groove and the chain conveyor are arranged in parallel and fixed on the support frame, the chain conveyor is positioned between the first guide groove and the second guide groove, a plurality of rollers are uniformly arranged in groove bodies of the first guide groove and the second guide groove, two ends of the first guide groove and two ends of the second guide groove are respectively provided with a travel switch, and one end of the first guide groove and one end of the second guide groove are positioned below the discharging barrel of the second screen body; the transfer pot comprises a rectangular bottom plate and a cylindrical pot body arranged on the rectangular bottom plate, a pair of limiting plates are arranged on the bottom surface of the rectangular bottom plate, the pair of limiting plates are respectively positioned in the grooves of the first guide groove and the second guide groove and abut against the rollers, and a connecting plate fixedly connected with the bottom surface of the rectangular bottom plate is fixedly arranged on a chain of the chain conveyor, so that the rectangular bottom plate moves along with the chain of the chain conveyor; the bottom of the cylindrical pot body is provided with a circular bottom plate, an inclined block and an inclined block are fixedly arranged on the circular bottom plate, one side of the circular bottom plate is provided with an arched notch, the lowest part of the inclined block is connected with the straight chord edge of the arched notch, an L-shaped baffle plate is inserted into the arched notch, and one side of the rectangular bottom plate is provided with a PLA particle outlet part matched with the arched notch; the travel switch is set as follows: when the transfer pot is in the transfer moving process, the pair of limiting plates on the bottom surface of the rectangular bottom plate touches the travel switch, the transfer pot stops moving, and feeding and discharging of the transfer pot can be carried out at the two ends of the first guide groove and the second guide groove.
The cross section of the bottom of the feeding funnel is oblong, the discharge hole of the feeding funnel is an oblique opening, the included angle between the end surface of the oblique opening and the horizontal plane is alpha, and the alpha is 15-30 degrees.
An air suction pipeline is arranged on the side wall of the lower shell, and a filter screen is arranged in the air suction pipeline.
The electric heating plate is an infrared heating plate.
The mesh aperture of the first screen body is larger than that of the second screen body.
The U-shaped pressing strip is pressed on the first screen body, and the U-shaped pressing strip, the first screen body and the second screen body are pressed on the powder extraction groove through bolts.
The width of the limiting plate is slightly smaller than the width of the groove bodies of the first guide groove and the second guide groove.
The rest parts of the inclined blocks except the lowest part of the inclined blocks are all propped against the side wall of the cylindrical pot body.
The L-shaped striker plate comprises a horizontal plate and a vertical plate, the area of the horizontal plate is larger than that of the arch-shaped notch, the end part of the horizontal plate is provided with an insertion part extending into the circular bottom plate, and a groove part matched with the insertion part is arranged in the circular bottom plate.
The utility model has the advantages that: the granular materials are scattered, dried and then subjected to item screening, so that the granules are not sticky and the screening speed is high. The transportation speed is fast, and degree of automation is high, has avoided wasting time and energy of artifical transportation.
Description of the drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a drying and screening mechanism;
FIG. 3 is a schematic diagram of a vibratory screening apparatus;
FIG. 4 is a schematic top view of the drying apparatus;
FIG. 5 is a schematic sectional view A-A of FIG. 4;
FIG. 6 is a schematic structural view of a transfer conveying mechanism;
FIG. 7 is a schematic top view of the transfer mechanism;
FIG. 8 is a schematic structural view of the bottom of a rectangular base plate;
FIG. 9 is a schematic structural view of a cylindrical pot body;
FIG. 10 is a schematic view showing the positional relationship between the lowest part of the inclined block, the arcuate notch and the L-shaped striker plate;
fig. 11 is a schematic structural view of an L-shaped striker plate.
Detailed Description
As shown in the attached drawings, the utility model comprises a drying and screening mechanism 100 and a transferring and conveying mechanism 101;
the drying and screening mechanism 100 comprises a vibrating screening device and a drying device, the vibrating screening device comprises a base 1, a powder lead-out groove 2, a first screen body 3 and a second screen body 4, discharge ends of the powder lead-out groove 2, the first screen body 3 and the second screen body 4 are respectively provided with a feed cylinder, the feed cylinders of the first screen body 3 and the second screen body 4 are arranged in a staggered mode, the powder lead-out groove 2 is inclined and is installed on the base 1 through a group of springs 12, the bottom of the powder lead-out groove 2 is provided with a vibrating motor 5, and the second screen body 4 and the first screen body 3 are sequentially installed in the powder lead-out groove 2 from bottom to top; the drying device comprises a shell 6, a group of electric heating plates 7 and rollers 9, wherein a feed inlet is formed in the top of the shell 6, a discharging funnel 8 is arranged at the bottom of the shell 6, the shell 6 is installed on a base 1 through a support frame, the group of electric heating plates 7 are fixedly installed in the shell 6 in an inclined staggered mode, a plurality of groups of scattering rods 10 are annularly and uniformly distributed on the outer wall of each roller 9, the rollers 9 are movably installed in the shell 6 through a pair of bearings, the rollers 9 are driven to rotate through a motor 11 and a speed reducer, the rollers 9 are located above the group of electric heating plates 7, and the drying device is located above a;
the transfer conveying mechanism 101 comprises a supporting frame 49, a chain conveyor 50 arranged on the supporting frame 49, a first guide groove 51, a second guide groove 52, a transfer pot 53 and a travel switch 54; the first guide groove 51, the second guide groove 52 and the chain conveyor 50 are arranged in parallel and fixed on the support frame 49, the chain conveyor 50 is positioned between the first guide groove 51 and the second guide groove 52, a plurality of rollers 55 are uniformly arranged in the groove bodies of the first guide groove 51 and the second guide groove 52, two ends of the first guide groove 51 and the second guide groove 52 are respectively provided with a travel switch 54, and one end of the first guide groove 51 and one end of the second guide groove 52 are positioned below the feed cylinder of the second screen body 4; the transfer pot 53 comprises a rectangular bottom plate 56 and a cylindrical pot body 57 arranged on the rectangular bottom plate 56, a pair of limiting plates 58 are arranged on the bottom surface of the rectangular bottom plate 56, the pair of limiting plates 58 are respectively positioned in the groove bodies of the first guide groove 51 and the second guide groove 52 and abut against the roller 55, and a connecting plate fixedly connected with the bottom surface of the rectangular bottom plate 56 is fixedly arranged on a chain of the chain conveyor 50, so that the rectangular bottom plate 56 moves along with the chain of the chain conveyor 50; the bottom of the cylindrical pot body 57 is provided with a circular bottom plate 59, the circular bottom plate 59 is fixedly provided with an inclined block 60 and the inclined block 60, one side of the circular bottom plate 59 is provided with an arched notch 61, the lowest part of the inclined block 60 is connected with the straight chord edge of the arched notch 61, an L-shaped baffle plate 62 is inserted into the arched notch 61, and one side of the rectangular bottom plate 56 is provided with a PLA particle outlet 63 matched with the arched notch 61; the travel switch 54 is configured to: when the transfer pot 53 touches the travel switch 54 during the transfer movement process, the pair of limit plates 58 on the bottom surface of the rectangular bottom plate 56 stops moving, and the transfer pot 53 can be fed and discharged at two ends of the first guide groove 51 and the second guide groove 52.
The cross section of the bottom of the blanking funnel 8 is oblong, the discharge hole of the blanking funnel 8 is an oblique opening, the included angle between the end surface of the oblique opening and the horizontal plane is alpha, and the alpha is 15-30 degrees.
An air suction pipeline 13 is arranged on the side wall of the lower shell 6, and a filter screen is arranged in the air suction pipeline 13.
The electric heating plate 7 is an infrared heating plate.
The mesh aperture of the first screen body 3 is larger than that of the second screen body 4.
The powder extraction device is further provided with a U-shaped pressing strip 15, the top edge openings of the first screen body 3 and the second screen body 4 and the U-shaped pressing strip 15 are respectively provided with a threaded hole, the U-shaped pressing strip 15 is tightly pressed on the first screen body 3, and the U-shaped pressing strip 15, the first screen body 3 and the second screen body 4 are tightly pressed on the powder extraction groove 2 through bolts.
The width of the limit plate 58 is slightly smaller than the width of the first guide groove 51 and the second guide groove 52.
The rest parts of the inclined blocks 60 except the lowest part thereof are all contacted with the side wall of the cylindrical pot body 57.
The L-shaped baffle plate 62 comprises a horizontal plate 64 and a vertical plate 65, the area of the horizontal plate 64 is larger than that of the arched notch 61, an insertion part 66 extending into the circular bottom plate 59 is arranged at the end part of the horizontal plate 64, and a groove part matched with the insertion part 66 is arranged in the circular bottom plate 59.
The working mode is as follows: the granule material of following granulator output is added by the feed inlet of casing 6, fall on roller 9, roller 9 constantly rotates under motor 11's drive, break up the granule material that falls down, granule material through breaking up continues to fall and is heated and dried by a set of electric heating board 7 to it, granule material falls into first screen frame 3 by unloading funnel 8 after the stoving is accomplished, sieve, unqualified large granule material that first screen frame 3 sieved out is discharged by its feed cylinder, less material falls down in second screen frame 4, sieve qualified PLA granule material by second screen frame 4, and discharge by the feed cylinder of second screen frame 4, granule and dust of particle diameter undersize fall into in drawing forth groove 2, draw forth the feed cylinder discharge of groove 2 by the powder. The bottom cross-section of unloading funnel 8 is the long circle, can make the unloading more even, is difficult for appearing piling up, and the discharge gate of unloading funnel 8 is the bevel connection, makes the material ejection of compact more smooth, can not pile up in unloading funnel 8 rear. The air suction pipeline 13 is communicated with an air suction opening of the exhaust fan, and air generated when the granular materials are heated is sucked out through the air suction pipeline 13; an operator charges PLA particles at the feeding end below the feeding cylinder of the second screen body 4 (i.e. the end of the first guide groove 51 and the second guide groove 52 below the feeding cylinder of the second screen body 4), collects the PLA particles falling from the feeding cylinder of the second screen body 4 through the transfer pot 53, then the chain conveyor 50 is started to rotate forwards to convey the transfer pot 53 to the discharge end, when a pair of limit plates 58 on the bottom surface of a rectangular bottom plate 56 of the transfer pot 53 contact the travel switch 54 at the discharge end, the transfer pot 53 stops moving, at this time, the L-shaped material baffle plate 62 inserted in the arch notch 61 is drawn out, namely, discharging can be carried out through the arc-shaped notch 61 and the PLA particle outlet part 63, the discharged PLA particles fall into the charging hopper 67 below the PLA particle outlet part 63, and then the discharged PLA particles are fed through the suction pipe 68 of the blow molding machine arranged beside for subsequent operation. After the unloading is finished, the L-shaped material baffle plate 62 is inserted back into the arch-shaped notch 61, the chain conveyor 50 is started to rotate reversely, the transfer pot 53 is conveyed to the feeding end, when the pair of limiting plates 58 on the bottom surface of the rectangular bottom plate 56 of the transfer pot 53 touch the travel switch 54 at the feeding end, the transfer pot 53 stops moving, the feeding of the transfer pot 53 can be carried out, and then the steps are circulated.
Claims (9)
1. A drying, screening and conveying system for PLA granules is characterized by comprising a drying, screening and conveying mechanism (100) and a transferring and conveying mechanism (101);
the drying and screening mechanism (100) comprises a vibrating screening device and a drying device, the vibrating screening device comprises a base (1), a powder lead-out groove (2), a first screen body (3) and a second screen body (4), discharge ends of the powder lead-out groove (2), the first screen body (3) and the second screen body (4) are respectively provided with a feed cylinder, the feed cylinders of the first screen body (3) and the second screen body (4) are arranged in a staggered mode, the powder lead-out groove (2) is inclined and is installed on the base (1) through a group of springs (12), the bottom of the powder lead-out groove (2) is provided with a vibrating motor (5), and the second screen body (4) and the first screen body (3) are sequentially installed in the powder lead-out groove (2) from bottom to top; the drying device comprises a shell (6), a group of electric heating plates (7) and rollers (9), wherein a feed inlet is formed in the top of the shell (6), a discharging funnel (8) is arranged at the bottom of the shell (6), the shell (6) is installed on a base (1) through a supporting frame, the group of electric heating plates (7) are fixedly installed in the shell (6) in an inclined staggered mode, a plurality of groups of scattering rods (10) are annularly and uniformly distributed on the outer wall of the rollers (9), the rollers (9) are movably installed in the shell (6) through a pair of bearings, the rollers (9) are driven to rotate through a motor (11) and a speed reducer, the rollers (9) are located above the group of electric heating plates (7), and the drying device is located above a first sieve body (;
the transfer conveying mechanism (101) comprises a support frame (49), a chain conveyor (50) arranged on the support frame (49), a first guide groove (51), a second guide groove (52), a transfer pot (53) and a travel switch (54); the first guide groove (51), the second guide groove (52) and the chain conveyor (50) are arranged in parallel and fixed on the support frame (49), the chain conveyor (50) is located between the first guide groove (51) and the second guide groove (52), a plurality of rollers (55) are uniformly arranged in groove bodies of the first guide groove (51) and the second guide groove (52), two ends of the first guide groove (51) and the second guide groove (52) are respectively provided with a travel switch (54), and one end of the first guide groove (51) and one end of the second guide groove (52) are located below a blanking cylinder of the second screen body (4); the transfer pot (53) comprises a rectangular bottom plate (56) and a cylindrical pot body (57) arranged on the rectangular bottom plate (56), a pair of limiting plates (58) are arranged on the bottom surface of the rectangular bottom plate (56), the pair of limiting plates (58) are respectively positioned in the groove bodies of the first guide groove (51) and the second guide groove (52) and abut against the rollers (55), and a connecting plate fixedly connected with the bottom surface of the rectangular bottom plate (56) is fixedly arranged on a chain of the chain conveyor (50), so that the rectangular bottom plate (56) moves along with the chain of the chain conveyor (50); a circular bottom plate (59) is arranged at the bottom of the cylindrical pot body (57), an inclined block (60) and an inclined block (60) are fixedly arranged on the circular bottom plate (59), an arched notch (61) is formed in one side of the circular bottom plate (59), the lowest part of the inclined block (60) is connected with the straight chord edge of the arched notch (61), an L-shaped baffle plate (62) is inserted into the arched notch (61), and a PLA particle outlet part (63) matched with the arched notch (61) is formed in one side of the rectangular bottom plate (56); the travel switch (54) is arranged to: when the transfer pot (53) is in the transfer moving process, a pair of limiting plates (58) on the bottom surface of the rectangular bottom plate (56) touches the travel switch (54), the transfer pot (53) stops moving, and feeding and discharging of the transfer pot (53) can be carried out at two ends of the first guide groove (51) and the second guide groove (52).
2. The drying, screening and conveying system for PLA granules is characterized in that the cross section of the bottom of the feeding funnel (8) is oblong, the discharge hole of the feeding funnel (8) is an oblique opening, the included angle between the end surface of the oblique opening and the horizontal plane is alpha, and alpha is 15-30 degrees.
3. The drying, screening and conveying system for PLA granules as claimed in claim 1, wherein the side wall of the lower casing (6) is provided with an air draft duct (13), and a filter screen is arranged in the air draft duct (13).
4. A drying and screening conveyor system for PLA granules according to claim 1, characterised in that the electric heating plate (7) is an infrared heating plate.
5. The drying, screening and conveying system for PLA pellets as claimed in claim 2, characterized in that the mesh size of the first screen body (3) is larger than the mesh size of the second screen body (4).
6. The drying, screening and conveying system for the PLA granules is characterized in that the drying, screening and conveying system further comprises a U-shaped pressing strip (15), the top edges of the first screen body (3) and the second screen body (4) and the U-shaped pressing strip (15) are respectively provided with a threaded hole, the U-shaped pressing strip (15) is pressed on the first screen body (3), and the U-shaped pressing strip (15), the first screen body (3) and the second screen body (4) are pressed on the powder outlet groove (2) through bolts.
7. The drying and screening conveyor system for PLA granules of claim 1, wherein the width of the restriction plate (58) is slightly smaller than the groove width of the first and second guide grooves (51, 52).
8. A drying and screening conveyor system for PLA granules, according to claim 1, characterized in that the rest of the inclined block (60), except for its lowest part, is against the side wall of the cylindrical pot (57).
9. The drying and screening conveyor system for PLA granules, as claimed in claim 1, wherein the L-shaped baffle plate (62) comprises a horizontal plate (64) and a vertical plate (65), the area of the horizontal plate (64) is larger than that of the arcuate notch (61), the end of the horizontal plate (64) is provided with an insertion part (66) which extends into the circular bottom plate (59), and the circular bottom plate (59) is provided with a groove part which is matched with the insertion part (66).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626223.7U CN209887945U (en) | 2019-05-05 | 2019-05-05 | A stoving screening conveying system for PLA granule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920626223.7U CN209887945U (en) | 2019-05-05 | 2019-05-05 | A stoving screening conveying system for PLA granule |
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| Publication Number | Publication Date |
|---|---|
| CN209887945U true CN209887945U (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920626223.7U Active CN209887945U (en) | 2019-05-05 | 2019-05-05 | A stoving screening conveying system for PLA granule |
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| Country | Link |
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| CN (1) | CN209887945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626496A (en) * | 2022-12-19 | 2023-01-20 | 常州速稳智能机械有限公司 | Piezoelectric drive-based screening and conveying device and working method thereof |
-
2019
- 2019-05-05 CN CN201920626223.7U patent/CN209887945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115626496A (en) * | 2022-12-19 | 2023-01-20 | 常州速稳智能机械有限公司 | Piezoelectric drive-based screening and conveying device and working method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A drying, screening and conveying system for PLA particles Granted publication date: 20200103 Pledgee: Industrial and Commercial Bank of China Limited Jingmen Duodao Branch Pledgor: HUBEI GUANGHE BIO-TECH Co.,Ltd. Registration number: Y2024980002786 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |