CN210910707U - Feeding system of bio-based filler modified polylactic acid composite material - Google Patents
Feeding system of bio-based filler modified polylactic acid composite material Download PDFInfo
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- CN210910707U CN210910707U CN201921548818.1U CN201921548818U CN210910707U CN 210910707 U CN210910707 U CN 210910707U CN 201921548818 U CN201921548818 U CN 201921548818U CN 210910707 U CN210910707 U CN 210910707U
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Abstract
The utility model relates to a bio-based filler modified polylactic acid composite's feed system. The technical problems that the design is unreasonable and the like in the prior art are solved. This modified polylactic acid combined material's of bio-based filler feed system includes transfer passage, and wear to establish the feed screw rod in transfer passage, feed end upside at transfer passage is connected with the feeder hopper through a plurality of stands, the lower extreme of feeder hopper is sealed, the upper end of feeder hopper is uncovered, be connected with the discharging pipe in lower extreme one side of feeder hopper, and connect the vertical hopper at the discharging pipe discharge end, the lower extreme and the transfer passage intercommunication of vertical hopper, wear to be equipped with screw rod one and screw rod one in the feeder hopper and stretch into to the discharging pipe, this screw rod one is connected with feed motor one, be connected with bamboo fibre feeding device at transfer passage's discharge end lateral part. The utility model has the advantages that: can prevent the carbonization of the bamboo fiber material caused by long-time high-temperature heating in the conveying channel and improve the product quality.
Description
Technical Field
The utility model belongs to the technical field of the combined material processing, especially, relate to a modified polylactic acid combined material's of bio-based filler feed system.
Background
The polylactic acid, the bamboo fiber and the auxiliary materials can be mixed to prepare the environment-friendly material, and the material is applied to the food fields of various tableware and the like.
When mixing various materials, the current materials are mixed together in a concentrated manner and then heated to produce the final composite material.
The heating is carried out in the transmission channel, and the mixing can cause the carbonization of the bamboo fiber material in the transmission spiral channel due to the high-temperature heating, thereby destroying the original performance of the bamboo fiber and influencing the final quality of the product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above-mentioned problem, provide a bio-based filler modified polylactic acid combined material's that can solve above-mentioned technical problem feed system.
In order to achieve the above purpose, the utility model adopts the following technical proposal: this modified polylactic acid combined material's of bio-based filler feed system includes transfer passage, and wear to establish the feed screw rod in transfer passage, feed end upside at transfer passage is connected with the feeder hopper through a plurality of stands, the lower extreme of feeder hopper is sealed, the upper end of feeder hopper is uncovered, be connected with the discharging pipe in lower extreme one side of feeder hopper, and connect the vertical hopper at the discharging pipe discharge end, the lower extreme and the transfer passage intercommunication of vertical hopper, wear to be equipped with screw rod one and screw rod one in the feeder hopper and stretch into to the discharging pipe, this screw rod one is connected with feed motor one, be connected with bamboo fibre feeding device at transfer passage's discharge end lateral part.
In the feeding system of the bio-based filler modified polylactic acid composite material, the bamboo fiber feeding device comprises a support frame, a discharge chute which is horizontally arranged is arranged on the support frame, the discharge end of the discharge chute is connected with the lateral part between the middle part and the discharge end and is communicated with a conveying channel, a spiral discharging mechanism is arranged in the discharge chute, and a guide cylinder which is positioned above the side of the discharge chute, the upper end of the guide cylinder is open, a feed hopper is connected with the opening of the guide cylinder, one side of the guide cylinder is connected with the horizontally arranged discharge cylinder, two extruding screw rods which are inserted into the discharge cylinder are connected with the guide cylinder in a rotating way, one ends of the extruding screw rods extend into the guide cylinder and are connected with the guide cylinder in a rotating way, the two extruding screw rods are positioned in the same horizontal plane and have the same rotating direction, the discharge end of the discharge cylinder is connected with a blanking hopper, and, the material stirring shaft is connected to the guide cylinder and located above the extruding screw rod, one end of the material stirring shaft is extended to the position below the feed hopper, the material stirring shaft and the extruding screw rod are connected with the same power driving mechanism, and the material stirring sheet is connected to the end, extended to the position below the feed hopper, of the material stirring shaft.
In the feeding system of the bio-based filler modified polylactic acid composite material, the material pushing shaft is positioned above the center between the two material extruding screws.
In the feeding system of the bio-based filler modified polylactic acid composite material, the power driving mechanism comprises a box body fixed at the top of the support frame, one end of the extruding screw rod extends into the box body and is rotationally connected with the box body, the other end of the stirring shaft extends into the box body and is rotationally connected with the box body, one end of the extruding screw rod extending into the box body is connected with the other end of the stirring shaft through a linkage structure, and any one extruding screw rod is connected with the power driving motor.
The linkage structure comprises a first gear arranged at one end of each extrusion screw rod extending into the box body, the two first gears are meshed, and a second gear meshed with any one first gear is arranged at the other end of the material stirring shaft.
In the feeding system of the bio-based filler modified polylactic acid composite material, the material stirring sheet is Z-shaped, the material stirring shaft rotates to drive the material stirring sheet to synchronously rotate, and any one end of the material stirring sheet intermittently extends into the lower end of the feeding hopper.
In the feeding system of the bio-based filler modified polylactic acid composite material, the material pushing shaft is positioned above the center between the two material extruding screws.
In the feeding system of the bio-based filler modified polylactic acid composite material, the support frame comprises a base and a first horizontal plate connected to the top of the base, the first horizontal plate is connected with a second horizontal plate through four connecting upright posts, the second horizontal plate is connected with a third horizontal plate through four connecting upright posts, the discharge chute and the spiral discharge mechanism are fixed on the upper surface of the second horizontal plate, and the guide cylinder and the power driving mechanism are fixed on the upper surface of the third horizontal plate.
In the feeding system of the bio-based filler modified polylactic acid composite material, the spiral discharging mechanism comprises a spiral discharging rod arranged in the discharging groove in a penetrating mode, a fixing box fixed on the second horizontal plate and a screw protecting pipe connected between the fixing box and the discharging groove, a servo motor is connected to the base, a speed reducer connected to an output shaft of the servo motor is fixed to one side, away from the screw protecting pipe, of the fixing box, a transmission shaft is connected to one end, close to the screw protecting pipe, of the spiral discharging rod, and the transmission shaft is connected with the speed reducer.
In the feeding system of the bio-based filler modified polylactic acid composite material, the open end of the guide cylinder is provided with the lower flange, the lower end of the feed hopper is connected with the upper flange, the upper flange is arranged on the lower flange, and the upper flange and the lower flange are fixed together through a plurality of bolts.
In the feeding system of the bio-based filler modified polylactic acid composite material, the first horizontal plate, the second horizontal plate and the third horizontal plate are all rectangular plates, one end of the first horizontal plate is fixed at the top of the base, the other end of the first horizontal plate is in a suspended state, the periphery of the second horizontal plate is flush with the periphery of the first horizontal plate, one end of the third horizontal plate is located above the middle of the second horizontal plate, and the other end of the third horizontal plate is extended to the outer side of one end, far away from the suspended end of the first horizontal plate, of the second horizontal plate.
In the feeding system of the bio-based filler modified polylactic acid composite material, four upright posts are distributed in an array, the feeding hopper is fixed on the feeding bottom plate, and the feeding bottom plate is fixed at the upper ends of the four upright posts.
In the feeding system of the bio-based filler modified polylactic acid composite material, one side of the feeding hopper, which is connected with the discharging pipe, is connected with the observation glass I.
In the feeding system of the bio-based filler modified polylactic acid composite material, the opening of the feeding hopper is connected with the feeding hopper.
In the feeding system of the bio-based filler modified polylactic acid composite material, a second observation glass is connected to the feeding hopper.
Compared with the prior art, the feeding system of the bio-based filler modified polylactic acid composite material has the advantages that:
the main raw materials are fed through the feed hopper, the discharge material of the bamboo fiber feeding device is arranged on the side part of the bamboo fiber feeding device, the mixing purpose can be achieved through the structure, meanwhile, carbonization of the bamboo fiber materials caused by long-time high-temperature heating on the conveying channel can be prevented, and the product quality is improved.
Dial the rotatory disconnected confession that can prevent bamboo fiber material of tablet, and its shearing force of the crowded material screw rod of setting is little, can prevent that bamboo fiber material from not being extruded and leading to the impaired decomposition of bamboo fiber material, and can form once mixing to bamboo fiber material, and simultaneously, utilize the difference in height to get into bamboo fiber material to the blown down tank in, can form the breaking up to bamboo fiber material, and form quantitative feed through spiral discharge mechanism at last, overall structure can improve the feed efficiency of bamboo fiber material, and the feed quality.
Drawings
Fig. 1 is a schematic structural diagram of a feeding system of a bio-based filler modified polylactic acid composite material provided by the present invention.
Fig. 2 is a schematic view of another perspective structure of a feeding system of the bio-based filler modified polylactic acid composite material provided by the present invention.
Fig. 3 is a schematic structural diagram of the bamboo fiber feeding device provided by the utility model.
Fig. 4 is a schematic view of a part of the structure of the material guiding cylinder provided by the present invention.
Fig. 5 is a schematic view of the feeding state of the feeding system of the bio-based filler modified polylactic acid composite material provided by the present invention.
In the figure, a bamboo fiber feeding device a, a supporting frame a1, a base a10, a first horizontal plate a11, a first connecting upright post a12, a second horizontal plate a13, a second connecting upright post a14, a third horizontal plate a15, a discharging chute a2, a spiral discharging mechanism a3, a spiral discharging rod a30, a fixed box a31, a screw protective pipe a32, a servo motor a33, a speed reducer a34, a transmission shaft a35, a guide cylinder a4, a lower flange a40, a stirring shaft a41, a stirring sheet a42, a first feeding hopper a5, an upper flange a50, a discharging cylinder a6, a material extruding screw a6, a blanking hopper a6, a box body a6, a power driving motor a6, a conveying channel b 6, an upright post b 6, a discharging pipe b 6, a vertical hopper b 6, a screw b 6, a feeding motor b 6, a feeding bottom plate 6, a glass feeding screw b 6 and a6, a glass feeding screw b 6, 6 and a glass feeding screw b 6.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in the figure 1-2, the feeding system of the bio-based filler modified polylactic acid composite material comprises a conveying channel b1, wherein the conveying channel b1 is fixed on a machine frame and is horizontally distributed.
Secondly, the conveying channel b1 of this embodiment heats and adopts the steam heating mode, has around the steam heat exchange tube in the outer wall of conveying channel b1 to and the insulating tube of cover setting at the steam heat exchange tube outside.
And a feeding screw b2 arranged in the conveying channel b1 in a penetrating way, wherein the feeding screw b2 is connected with a second feeding motor.
The upper side of the feeding end of the conveying channel b1 is connected with a feeding hopper b11 through a plurality of columns b10, the columns b10 of the embodiment are four and distributed in an array, the feeding hopper b11 is fixed on a feeding bottom plate b16, and a feeding bottom plate b16 is fixed at the upper ends of the four columns b 10.
The overhead feed hopper b11 prevents heat from the transfer channel b1 from transferring to feed hopper b11 and affecting the feed of feed hopper b 11.
The lower end of the feed hopper b11 is closed, the upper end of the feed hopper b11 is open, the open end of the feed hopper b11 is connected with a feed hopper b18, and the feed hopper b18 is connected with a second observation glass b 19.
The feed hopper b18 can expand the feed volume, while the designed sight glass di b19 can facilitate the observation of the internal material.
One side of the lower end of the feed hopper b11 is connected with a discharge pipe b12 and a vertical hopper b13 connected to the discharge end of a discharge pipe b12, the lower end of the vertical hopper b13 is communicated with a conveying channel b1, a screw rod b14 penetrates through the feed hopper b11, the screw rod b14 extends into a discharge pipe b12, and the screw rod b14 is connected with a feed motor b 15.
When the feeding motor b15 is started, the screw b14 is driven to rotate, and at the moment, the material in the feeding hopper b18 is taken away by the screw b14 and enters the discharging pipe b12, and finally enters the feeding end of the conveying channel b1 from the vertical hopper b 13.
Next, a first observation glass b17 is connected to the side of the feed hopper b11 to which the discharge pipe b12 is connected. Sight glass one b17 may facilitate the observation of the amount of internal material.
As shown in the figures 1-5 of the drawings,
a bamboo fiber feeding device a is connected to the side between the middle part and the discharge end of the conveying passage b 1. The bamboo fiber feeding device a comprises a supporting frame a1, specifically, the supporting frame a1 of the embodiment comprises a base a10, a first horizontal plate a11 connected to the top of the base a10, a second horizontal plate a13 connected to the first horizontal plate a11 through a first four connecting uprights a12, and a third horizontal plate a15 connected to the second horizontal plate a13 through a second four connecting uprights a 14.
Secondly, the first horizontal plate a11, the second horizontal plate a13 and the third horizontal plate a15 are all rectangular plates, one end of the first horizontal plate a11 is fixed at the top of the base a10, the other end of the first horizontal plate a11 is in a suspended state, the periphery of the second horizontal plate a13 is flush with the periphery of the first horizontal plate a11, one end of the third horizontal plate a15 is located above the middle of the second horizontal plate a13, and the other end of the third horizontal plate a15 is extended to the outer side of one end, away from the suspended end of the first horizontal plate a11, of the second horizontal plate a 13.
The interval distribution, it can effectively alleviate complete machine weight, simultaneously, adopts alignment and unsettled structure, and it can form effective help to the stability of structure, because, only support frame stable in structure has, just can ensure whole feeding device's work efficiency.
Meanwhile, the suspension design can effectively utilize the existing space.
The lower end of the first connecting upright a12 is locked on the first horizontal plate a11 through two nuts, and meanwhile, the two nuts can be used for fixing the second horizontal plate a 13. This structure can facilitate the mounting and dismounting of the whole structure.
Similarly, the second connecting pillar a14 can also be used to connect the second horizontal plate and the third horizontal plate, and then disassemble the second horizontal plate and the third horizontal plate.
The support frame a1 is provided with a discharge chute a2 which is horizontally arranged, the discharge end of the discharge chute a2 is connected to the side part between the middle part and the discharge end and is communicated with the conveying channel b1, the discharge chute a2 is internally provided with a spiral discharge mechanism a3, the discharge chute a2 and the spiral discharge mechanism a3 are fixed on the upper surface of the second horizontal plate a13, and the guide cylinder a4 and the power driving mechanism a9 are fixed on the upper surface of the third horizontal plate a 15.
Further, the spiral discharging mechanism a3 comprises a spiral discharging rod a30 penetrating the discharging groove a2, a fixing box a31 fixed on the second horizontal plate a13, and a screw protecting tube a32 connected between the fixing box a31 and the discharging groove a2, a servo motor a33 and a speed reducer a34 connected to the output shaft of the servo motor a33 are connected to the base a10, the speed reducer a34 is fixed on the side, away from the screw protecting tube a32, of the fixing box a31, a transmission shaft a35 is connected to one end, close to the screw protecting tube a32, of the spiral discharging rod a30, and the transmission shaft a35 is connected with a speed reducer a 34.
The fixed box a31 is directly fixed on the second horizontal plate and can be fixed by welding or bolts.
And the guide cylinder a4 is positioned above the side of the discharge chute a2, the upper end of the guide cylinder a4 is open, the open end of the guide cylinder a4 is connected with a feed hopper a5, the open end of the guide cylinder a4 is provided with a lower flange a40, the lower end of the feed hopper a5 is connected with an upper flange a50, the upper flange a50 is placed on the lower flange a40, and the upper flange a50 and the lower flange a40 are fixed together through a plurality of bolts.
One side of the material guiding cylinder a4 is connected with a horizontally arranged discharging cylinder a6, and two extruding screws a7 inserted into the discharging cylinder a6, and one end of the extruding screw a7 extends into the material guiding cylinder a4 to be rotatably connected with the material guiding cylinder a4, the extruding screws a7 of the embodiment are two and located in the same horizontal plane, and the two extruding screws a7 rotate simultaneously.
A blanking hopper a8 is connected to the discharging end of a discharging cylinder a6, the lower end of a blanking hopper a8 is communicated with the upper side of the feeding end of a discharging groove a2, a material stirring shaft a41 positioned above a material extruding screw a7 is connected to a guide cylinder a4, one end of the material stirring shaft a41 is extended to the position below a first feeding hopper a5, the material stirring shaft a41 and the material extruding screw a7 are connected with a same power driving mechanism a9, and a material stirring sheet a42 is connected to the end, extending to the position below a first feeding hopper a5, of the material stirring shaft a 41.
The rotation of dialling tablet a42 can prevent the disconnected confession of bamboo fiber material, and the crowded material screw rod a7 that sets up can force the bamboo fiber material not by the extrusion lead to the impaired of bamboo fiber material to and can form once mixing to the bamboo fiber material, simultaneously, utilize the difference in height to get into the bamboo fiber material to blown down tank a2, can form the scattering to the bamboo fiber material, and form quantitative feed through spiral discharge mechanism a3 at last, whole structure can improve the feed efficiency of bamboo fiber material, and feed quality.
The power driving mechanism a9 comprises a box body a91 fixed on the top of a supporting frame a1, one end of a material extruding screw a7 extends into the box body a91 and the material extruding screw a7 is rotatably connected with the box body a91, the other end of a material stirring shaft a41 extends into the box body a91 and the material stirring shaft a41 is rotatably connected with the box body a91, one end of the material extruding screw a7 extending into the box body a91 is connected with the other end of the material stirring shaft a41 through a linkage structure, and any one material extruding screw a7 is connected with a power driving motor a 92.
The material shifting piece a42 of this embodiment is Z-shaped, the material shifting shaft a41 rotates to drive the material shifting piece a42 to rotate synchronously, and any end of the material shifting piece a42 intermittently extends into the lower end of the first feeding hopper a 5.
Secondly, the kick-out shaft a41 is located right above the center between the two extrusion screws a 7.
During the production and the processing of the steel,
feeding a mixing aid such as polylactic acid into a feeding hopper b11, mixing the materials by a screw rod b14, forcing the mixed materials into a conveying channel b1, heating the conveying channel b1 to force the mixed materials to be heated, and feeding bamboo fiber materials into a bamboo fiber feeding device a, namely feeding the bamboo fiber materials (powder) into a feeding hopper a 5;
starting the power driving mechanism a9, and enabling the bamboo fiber material to enter the material guide cylinder a 4;
with the rotation of the extruding screw a7, the bamboo fiber material is forced to enter the blanking hopper a8 from the discharging barrel a6, and finally the bamboo fiber material is forced to enter the final conveying channel b1 through the spiral discharging mechanism a3 arranged in the discharging groove a2 and is mixed with the mixed material, and the finally mixed material enters the next process.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The feeding system of the bio-based filler modified polylactic acid composite material comprises a conveying channel (b1) and a feeding screw (b2) which is arranged in the conveying channel (b1) in a penetrating way, it is characterized in that the upper side of the feed end of the conveying channel (b1) is connected with a feed hopper (b11) through a plurality of upright posts (b10), the lower end of the feed hopper (b11) is closed, the upper end of the feed hopper (b11) is open, a discharge pipe (b12) and a vertical hopper (b13) connected to the discharge end of the discharge pipe (b12) are connected to one side of the lower end of the feed hopper (b11), the lower end of the vertical hopper (b13) is communicated with a conveying channel (b1), a screw (b14) penetrates the feed hopper (b11) and the screw (b14) extends into the discharge pipe (b12), the first screw (b14) is connected with a first feeding motor (b15), and a bamboo fiber feeding device (a) is connected to the side part between the middle part and the discharge end of the conveying channel (b 1).
2. The feeding system of bio-based filler modified polylactic acid composite material as claimed in claim 1, wherein said bamboo fiber feeding device (a) comprises a supporting frame (a1), a horizontally disposed discharging chute (a2) is disposed on the supporting frame (a1), a discharging end of the discharging chute (a2) is connected to a lateral portion between the middle portion and the discharging end and is communicated with the conveying passage (b1), a spiral discharging mechanism (a3) is disposed in the discharging chute (a2), a guiding barrel (a4) is disposed above the discharging chute (a2), an upper end of the guiding barrel (a4) is open and is connected with a feeding hopper (a5) at an opening of the guiding barrel (a4), a horizontally disposed discharging barrel (a6) is connected to one side of the guiding barrel (a4), and two extruding screws (a7) inserted into the discharging barrel (a6) and one end of the extruding screws (a7) is extended into the guiding barrel (a4) and is connected with the guiding barrel (b 4 a) in a4 rotation, the two extrusion screws (a7) are located in the same horizontal plane and have the same rotation direction, the discharge end of the discharge barrel (a6) is connected with a blanking hopper (a8), the lower end of the blanking hopper (a8) is communicated with the upper side of the feed end of the discharge chute (a2), the guide barrel (a4) is connected with a stirring shaft (a41) located above the extrusion screws (a7), one end of the stirring shaft (a41) is extended to the lower side of the feed hopper (a5), the stirring shaft (a41) and the extrusion screws (a7) are connected with the same power driving mechanism (a9), and one end of the stirring shaft (a41) extended to the lower side of the feed hopper (a5) is connected with a stirring sheet (a 42).
3. The feeding system of bio-based filler modified polylactic acid composite material according to claim 2, wherein the material stirring shaft (a41) is positioned above the center between two material extruding screws (a 7).
4. The feeding system of bio-based filler modified polylactic acid composite material according to claim 2, wherein the stirring sheet (a42) is Z-shaped, the stirring shaft (a41) rotates to drive the stirring sheet (a42) to rotate synchronously, and any end of the stirring sheet (a42) intermittently extends into the lower end of the feeding hopper (a 5).
5. The feeding system of bio-based filler modified polylactic acid composite material as claimed in claim 2, wherein said supporting frame (a1) comprises a base (a10), a first horizontal plate (a11) connected to the top of the base (a10), a second horizontal plate (a13) connected to the first horizontal plate (a11) through four connecting posts (a12), a third horizontal plate (a15) connected to the second horizontal plate (a13) through four connecting posts (a14), said discharge chute (a2) and screw discharge mechanism (a3) fixed to the upper surface of the second horizontal plate (a13), and said barrel (a4) and power driving mechanism (a9) fixed to the upper surface of the third horizontal plate (a 15).
6. A feeding system of bio-based filler modified polylactic acid composite material as claimed in claim 5, wherein said first horizontal plate (a11), said second horizontal plate (a13) and said third horizontal plate (a15) are all rectangular plates, one end of said first horizontal plate (a11) is fixed on the top of said base (a10), the other end of said first horizontal plate (a11) is suspended, the periphery of said second horizontal plate (a13) is flush with the periphery of said first horizontal plate (a11), one end of said third horizontal plate (a15) is located above the middle of said second horizontal plate (a13), and the other end of said third horizontal plate (a15) is extended to the outside of the end of said second horizontal plate (a13) far from the suspended end of said first horizontal plate (a 11).
7. The feeding system of bio-based filler modified polylactic acid composite material as claimed in claim 1, wherein said posts (b10) are arranged in array in four rows, the feeding hopper (b11) is fixed on the feeding bottom plate (b16), and the feeding bottom plate (b16) is fixed on the upper ends of the four posts (b 10).
8. The feeding system of bio-based filler modified polylactic acid composite material according to claim 1, wherein a first observation glass (b17) is connected to one side of the feeding hopper (b11) connected with the discharging pipe (b 12).
9. The feeding system of bio-based filler modified polylactic acid composite material according to claim 1, wherein a feeding hopper (b18) is connected to the opening of the feeding hopper (b 11).
10. The feeding system of bio-based filler modified polylactic acid composite material according to claim 9, wherein a second observation glass (b19) is connected to the feeding hopper (b 18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548818.1U CN210910707U (en) | 2019-09-18 | 2019-09-18 | Feeding system of bio-based filler modified polylactic acid composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921548818.1U CN210910707U (en) | 2019-09-18 | 2019-09-18 | Feeding system of bio-based filler modified polylactic acid composite material |
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| Publication Number | Publication Date |
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| CN210910707U true CN210910707U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921548818.1U Active CN210910707U (en) | 2019-09-18 | 2019-09-18 | Feeding system of bio-based filler modified polylactic acid composite material |
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| Country | Link |
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| CN (1) | CN210910707U (en) |
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