CN113478700A - Degradable environmental protection plastics master batch production facility - Google Patents
Degradable environmental protection plastics master batch production facility Download PDFInfo
- Publication number
- CN113478700A CN113478700A CN202110813809.6A CN202110813809A CN113478700A CN 113478700 A CN113478700 A CN 113478700A CN 202110813809 A CN202110813809 A CN 202110813809A CN 113478700 A CN113478700 A CN 113478700A
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- China
- Prior art keywords
- matching
- rotating
- connecting box
- box body
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/08—Screw or rotary spiral conveyors for fluent solid materials
- B65G33/14—Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
Abstract
The invention discloses a degradable environment-friendly plastic master batch production device, which comprises a connecting box body, wherein symmetrical side rotating shafts are rotationally arranged in the connecting box body, a plurality of matching cylinders are arranged between the side rotating shafts, spiral blocks are arranged on the outer surfaces of the matching cylinders, matching openings are arranged in the matching cylinders, one sides of the matching openings are communicated with connecting holes, opening clamping cavities are arranged in the matching cylinders, one sides of the opening clamping cavities are communicated with side inner holes, the matching openings are abutted against the notches of the opening clamping cavities, the device can utilize the split connecting box body to facilitate the disassembly and the assembly of the connecting box body, and utilize the split matching cylinders to facilitate the disassembly and the assembly of the matching cylinders, and utilize the design that the internal channel cavities of a cushion pad can be completely sealed, facilitating installation of the internal passage cavity.
Description
Technical Field
The invention relates to the technical field of environment-friendly plastic master batch production equipment, in particular to degradable environment-friendly plastic master batch production equipment.
Background
The existing plastic master batch production process can not be separated from a spiral conveyor, when the existing spiral conveyor is used, a protective cylinder is required to be arranged on the outer side of a spiral cylinder, the spiral structure is utilized to convey plastic master batches quantitatively and directionally, and correspondingly, the length of the spiral conveyor is very long, when the equipment is damaged, the equipment needs to be disassembled after being shut down, and then the spiral structure inside the equipment needs to be maintained and repaired, this greatly increases the down time of the equipment and makes personnel time consuming in actual maintenance and repair of the equipment, moreover, the labor is required for disassembling the equipment, so that the personnel is inconvenient to maintain and repair the equipment, however, in the existing equipment, although the equipment box body is designed to be split, the sleeve outside the spiral structure is not well installed and the spiral structure is still long when the split design is adopted, and the maintenance and the repair of the spiral structure are inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing degradable environment-friendly plastic master batch production equipment, which can solve the problems in the prior art.
The invention is realized by the following technical scheme: the invention relates to a degradable environment-friendly plastic master batch production device, which comprises a connecting box body, wherein symmetrical lateral rotating shafts are rotationally arranged in the connecting box body, a plurality of matching cylinders are arranged between the side rotating shafts, spiral blocks are arranged on the outer surfaces of the matching cylinders, a matching opening is arranged in the matching cylinder body, one side of the matching opening is communicated with a connecting hole, an opening clamping cavity is arranged in the matching column body, one side of the opening clamping cavity is communicated with a side inner hole, the matching opening is abutted against the notch of the opening clamping cavity, the matching columns are fixed by bolts arranged in the connecting hole and the side inner hole, the matching column body is fixed with the side rotating shafts on the two sides through the connecting hole and the side inner hole through bolts, the connecting box body is internally provided with a clamping device which is convenient for loading a buffer structure inside the connecting box body so as to enable the connecting box body to continuously transport plastic master batches.
According to the technical scheme, the clamping device comprises connecting box bodies which are arranged in a split mode, penetrating connecting holes are formed between the connecting box bodies, the connecting box bodies are locked and fixed through bolts arranged in the penetrating connecting holes, internal channel cavities are arranged in the connecting box bodies, outer ring cavities are communicated with the outside of the internal channel cavities, and split surrounding assemblies forming complete annular structures are arranged in the outer ring cavities.
According to the technical scheme, the encircling assembly comprises an inner sliding ring in sliding fit connection with the outer ring cavity, a meshing toothed ring is arranged on one side of the inner sliding ring and encircles the outer surface of the inner sliding ring, a side protruding block is arranged on one side of the inner sliding ring in a clamping mode and is of a T-shaped structure, a buffering pad is arranged on one side of the side protruding block and is located in the inner channel cavity, and a driving structure used for driving the inner sliding ring to move around to enable the inner sliding ring to be located between the connection boxes of the split type and enable the joint of the inner sliding ring to be located inside the connection boxes is arranged at the contact position of the split type.
According to the technical scheme, the driving structure comprises a matching block, the matching block is abutted and clamped with the connecting box body, the matching block is abutted against the inner sliding ring, a transmission gear is arranged in the matching block in a rotating mode, the transmission gear is meshed with the meshing toothed ring, and an inner driving assembly capable of enabling the transmission gear on two sides to rotate to enable the meshing toothed ring to continuously move in the outer ring cavity is arranged on one side of the matching block.
According to the technical scheme, the inner driving assembly comprises a connecting inner cavity which is arranged in the matching block, an extension shaft is arranged in the connecting inner cavity in a rotating mode, two top bevel gears are arranged on the outer surface of the extension shaft, a side connection matching bevel gear is arranged on one side of each top bevel gear in a meshed mode, the side connection matching bevel gear is in coaxial power connection with the transmission gear, a rotating bevel gear is arranged on the outer surface of the extension shaft, a side meshing bevel gear is arranged on one side of each rotating bevel gear in a meshed mode, a rotating matching shaft is arranged on one side of each side meshing bevel gear, a clamping groove is formed in the matching block, the rotating matching shaft is in rotating matching connection with the clamping groove, and a rotating structure which facilitates personnel to rotate is arranged on one side of the rotating matching shaft.
According to a further technical scheme, the rotating structure comprises two side turning rods connected with the rotating matching shaft in a rotating matching mode, and the side turning rods are connected with the clamping grooves in a sliding matching mode.
The invention has the beneficial effects that:
the device has a simple structure, the connecting box body can be conveniently detached by utilizing the split connecting box body, the matched cylinders are conveniently detached and installed by utilizing the segmented matched cylinders, and the internal channel cavity can be conveniently installed by utilizing the design that the buffer cushion can completely seal the internal channel cavity.
When the equipment is installed, firstly, the internal slip rings are respectively installed and clamped in the connecting box bodies of the split bodies through the outer ring cavities, then the lateral convex blocks and the buffer pads are installed and clamped by the internal slip rings, one sides of the internal slip rings in the connecting box bodies on two sides are installed and clamped with the buffer pads, then the matching cylinders are needed to be installed between the lateral rotating shafts, specifically, the spiral blocks on the outer surfaces of the matching cylinders are in a continuous connection state and can be locked and fixed with the lateral rotating shafts on two sides through the connecting holes and the lateral inner holes by utilizing the arrangement of the sliding and clamping of the matching openings and the opening installing and clamping cavities, so that the continuous integral bodies can be formed between the matching cylinders, and at the moment, the split matching cylinders and the spiral blocks can be formed, the matched column body and the spiral block can be conveniently disassembled and maintained when being maintained, the whole equipment is prevented from being disassembled, the matched block is arranged at the position where the matched block is abutted between the upper connecting box body and the lower connecting box body, the connecting box bodies are locked and fixed through the penetrating connecting hole, a person swings the side turning rod out of the rotating matching shaft, then the rotating matching shaft drives the side meshing bevel gear to rotate after the side meshing bevel gear rotates, the rotating bevel gear is driven to rotate after the side meshing bevel gear rotates, the rotating bevel gear is fixed with the extending shaft, the extending shaft drives the top bevel gears at two sides to rotate, and the top bevel gears are meshed with the side connecting matching bevel gears after rotating to enable the transmission gear to rotate, because the transmission gear is meshed with the meshing gear ring, after the meshing gear ring rotates, the meshing gear ring drives the inner sliding ring, the lateral convex blocks and the buffer pads to slide in the outer ring cavity, so that the joint between the buffer pads in the connecting box bodies on two sides and the joint between the connecting box bodies on two sides are not in the same plane, and the joint of the connecting box bodies can be sealed by the buffer pads to improve the transportation efficiency and the sealing performance.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
FIG. 1 is a schematic view of the internal overall structure of the equipment for producing degradable environment-friendly plastic master batches of the invention;
FIG. 2 is a schematic structural view of the mating post of FIG. 1;
FIG. 3 is a schematic view taken along the direction A in FIG. 2;
FIG. 4 is a sectional view of the connection box of FIG. 1;
FIG. 5 is a schematic view of the direction B-B in FIG. 4;
FIG. 6 is a schematic view at C of FIG. 4;
FIG. 7 is an engagement schematic view of the side-turning lever and the rotating engagement shaft of FIG. 6;
in the figure, a connecting hole 11, a matching opening 12, a matching column body 13, a screw block 14, a side inner hole 15, an opening clamping cavity 16, a side rotating shaft 21, a connecting box body 22, a penetrating connecting hole 31, an internal passage cavity 32, a buffer cushion 33, an internal slip ring 34, a meshing gear ring 35, a side convex block 36, an outer ring cavity 37, a matching block 41, a side meshing bevel gear 42, a rotating bevel gear 43, a connecting inner cavity 44, a transmission gear 45, an extending shaft 46, a top side bevel gear 47, a side connecting matching bevel gear 48, a side rotating rod 49, a rotating matching shaft 51 and a clamping groove 52 are arranged.
Detailed Description
As shown in fig. 1 to 7, the present invention is explained in detail, and for convenience of description, the following orientations are defined as follows: the degradable environment-friendly plastic master batch production equipment comprises a connecting box body 22, wherein symmetrical side rotating shafts 21 are rotatably arranged in the connecting box body 22, a plurality of matching cylinders 13 are arranged between the side rotating shafts 21, spiral blocks 14 are arranged on the outer surfaces of the matching cylinders 13, matching openings 12 are arranged in the matching cylinders 13, connecting holes 11 are arranged on one sides of the matching openings 12 in a communicating manner, opening clamping cavities 16 are arranged in the matching cylinders 13, side inner holes 15 are arranged on one sides of the opening clamping cavities 16 in a communicating manner, the matching openings 12 are abutted against gaps of the opening clamping cavities 16, the matching cylinders 13 are fixed by bolts arranged in the connecting holes 11 and the side inner holes 15, and the matching cylinders 13 are fixed with the side rotating shafts 21 on two sides by the connecting holes 11 and the side inner holes 15, a clamping device which is convenient for loading a buffer structure in the connecting box 22 so as to enable the connecting box 22 to continuously transport the plastic master batches is arranged in the connecting box 22.
Beneficially, the clamping device includes connecting box bodies 22 arranged in a split manner, penetrating connecting holes 31 are formed between the connecting box bodies 22, the connecting box bodies 22 are locked and fixed through bolts arranged in the penetrating connecting holes 31, an internal passage cavity 32 is arranged in the connecting box body 22, an external ring cavity 37 is arranged outside the internal passage cavity 32 in a communicating manner, and a surrounding component which is formed into a complete ring structure and is formed in a split manner is arranged in the external ring cavity 37.
Advantageously, the surrounding assembly comprises an inner sliding ring 34 connected with the outer ring cavity 37 in a sliding fit manner, a meshing toothed ring 35 is arranged on one side of the inner sliding ring 34, the meshing toothed ring 35 is arranged on the outer surface of the inner sliding ring 34 in a surrounding manner, a side bump 36 is arranged on one side of the inner sliding ring 34 in a clamping manner, the side bump 36 is of a T-shaped structure, a buffer 33 is arranged on one side of the side bump 36, the buffer 33 is located in the inner channel cavity 32, and a driving structure for driving the inner sliding ring 34 to perform a surrounding movement to enable a joint of the inner sliding ring 34 between the split connecting boxes 22 to be located inside the connecting boxes 22 is arranged at a contact position of the split connecting boxes 22.
Advantageously, the driving structure includes a fitting block 41, the fitting block 41 is clamped against the connecting box 22, the fitting block 41 is disposed against the inner sliding ring 34, a transmission gear 45 is rotatably disposed in the fitting block 41, the transmission gear 45 is disposed in engagement with the meshing ring gear 35, and an inner driving assembly capable of rotating the transmission gear 45 on both sides to enable the meshing ring gear 35 to continuously move in the outer ring cavity 37 is disposed on one side of the fitting block 41.
Advantageously, the internal driving assembly comprises a connecting inner cavity 44 arranged in the matching block 41, an extension shaft 46 is rotatably arranged in the connecting inner cavity 44, two top bevel gears 47 are arranged on the outer surface of the extension shaft 46, a side connecting matching bevel gear 48 is arranged on one side of the top bevel gears 47 in a meshed mode, the side connecting matching bevel gear 48 is coaxially and dynamically connected with the transmission gear 45, a rotating bevel gear 43 is arranged on the outer surface of the extension shaft 46, a side meshing bevel gear 42 is arranged on one side of the rotating bevel gear 43 in a meshed mode, a rotating matching shaft 51 is arranged on one side of the side meshing bevel gear 42, a clamping groove 52 is arranged in the matching block 41, the rotating matching shaft 51 is in rotating matching connection with the clamping groove 52, and a rotating structure facilitating personnel to rotate is arranged on one side of the rotating matching shaft 51.
Advantageously, the rotating structure comprises two side turning rods 49 connected with the rotating matching shaft 51 in a rotating matching way, and the two side turning rods 49 are connected with the clamping grooves 52 in a sliding matching way.
In the initial state, the above devices, assemblies and structures are in the inactive state, and the device can utilize the split connecting box 22 to facilitate the detachment of the connecting box 22, utilize the segmented mating cylinder 13 to facilitate the detachment and installation of the mating cylinder 13, and utilize the design that the cushion 33 can completely close the inner channel chamber 32 to facilitate the installation of the inner channel chamber 32.
When the device is installed, firstly, the inside of the connecting box 22 of the split body is respectively clamped with the inside sliding ring 34 through the outside ring cavity 37, then the inside sliding ring 34 is used for clamping the side protruding blocks 36 and the buffer pads 33, so that the buffer pads 33 are clamped on one side of the inside sliding ring 34 in the connecting box 22 on both sides, and then the matching cylinders 13 need to be installed between the side rotating shafts 21, specifically, the arrangement of the matching openings 12 and the opening clamping cavities 16 in a sliding way is used, so that the connecting holes 11 and the side inner holes 15 are locked and matched through bolts, so that the matching cylinders 13 can form a continuous whole body, at this time, the screw blocks 14 on the outer surfaces of the matching cylinders 13 are in a continuous connection state, and can be locked and fixed with the side rotating shafts 21 on both sides through the connecting holes 11 and the side inner holes 15, the matching column 13 and the screw block 14, which are segmented at this time, can be conveniently removed and maintained when the matching column 13 and the screw block 14 are maintained, so as to prevent the whole device from being removed, then the matching block 41 is installed at the position where the matching box bodies 22 on the upper and lower sides abut against each other, then the connecting box bodies 22 are locked and fixed through the penetrating connecting holes 31, then a person swings the side turning rod 49 out of the rotating matching shaft 51, then the rotating matching shaft 51 drives the side engaging bevel gear 42 to rotate after rotating the side engaging bevel gear 42, the rotating bevel gear 43 is driven to rotate after rotating the side engaging bevel gear 42, and the protruding shaft 46 drives the top side bevel gears 47 on both sides to rotate because the rotating bevel gear 43 is fixed with the protruding shaft 46, the transmission gear 45 is rotated by the action of meshing the top bevel gear 47 with the side connection matching bevel gear 48 after rotation, and since the transmission gear 45 is meshed with the meshing toothed ring 35, after the meshing toothed ring 35 is rotated, the meshing toothed ring 35 drives the inner slide ring 34, the side bumps 36 and the buffer pads 33 to slide in the outer ring cavity 37, so that the joint between the buffer pads 33 in the connection box bodies 22 at two sides and the joint between the connection box bodies 22 are not in the same plane, and the buffer pads 33 can close the joint of the connection box bodies 22 to improve the transportation efficiency and the tightness.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. A degradable environment-friendly plastic master batch production device comprises a connecting box body, wherein symmetrical lateral rotating shafts are rotationally arranged in the connecting box body, a plurality of matching cylinders are arranged between the side rotating shafts, spiral blocks are arranged on the outer surfaces of the matching cylinders, a matching opening is arranged in the matching cylinder body, one side of the matching opening is communicated with a connecting hole, an opening clamping cavity is arranged in the matching column body, one side of the opening clamping cavity is communicated with a side inner hole, the matching opening is abutted against the notch of the opening clamping cavity, the matching columns are fixed by bolts arranged in the connecting hole and the side inner hole, the matching column body is fixed with the side rotating shafts on the two sides through the connecting hole and the side inner hole through bolts, the connecting box body is internally provided with a clamping device which is convenient for loading a buffer structure inside the connecting box body so as to enable the connecting box body to continuously transport plastic master batches.
2. The degradable environment-friendly plastic master batch production equipment as claimed in claim 1, wherein the degradable environment-friendly plastic master batch production equipment is characterized in that: the clamping device comprises a connecting box body which is arranged in a split mode, a penetrating connecting hole is formed between the connecting box bodies, the connecting box bodies are locked and fixed through bolts arranged in the penetrating connecting hole, an internal channel cavity is formed in the connecting box body, an outer ring cavity is communicated with the outside of the internal channel cavity, and a surrounding assembly which is formed into a complete ring structure and is arranged in the split mode is arranged in the outer ring cavity.
3. The degradable environment-friendly plastic master batch production equipment as claimed in claim 2, wherein: the surrounding assembly comprises an inner sliding ring connected with the outer ring cavity in a sliding fit mode, an engaging toothed ring is arranged on one side of the inner sliding ring and surrounds the outer surface of the inner sliding ring, a side protruding block is arranged on one side of the inner sliding ring in a clamping mode and is of a T-shaped structure, a buffering pad is arranged on one side of the side protruding block and is located in the inner channel cavity, the contact position of the connecting box body is provided with a driving mechanism used for driving the inner sliding ring to perform surrounding movement to enable the split body to be located between the connecting box bodies, and the joint position of the inner sliding ring is located in the driving mechanism inside the connecting box body.
4. The degradable environment-friendly plastic master batch production equipment as claimed in claim 3, wherein: the driving structure comprises a matching block, the matching block is abutted and clamped with the connecting box body, the matching block is abutted against the internal sliding ring, a transmission gear is arranged in the matching block in a rotating mode, the transmission gear is meshed with the meshing toothed ring, and an internal driving assembly capable of enabling the transmission gear on two sides to rotate to enable the meshing toothed ring to continuously move in the outer ring cavity is arranged on one side of the matching block.
5. The production equipment of degradable environment-friendly plastic master batch according to claim 4, characterized in that: the inner driving assembly comprises a connecting inner cavity arranged in the matching block, an extension shaft is arranged in the connecting inner cavity in a rotating mode, two top bevel gears are arranged on the outer surface of the extension shaft, a side connection matching bevel gear is arranged on one side of each top bevel gear in a meshed mode, the side connection matching bevel gear is in coaxial power connection with the transmission gear, a rotating bevel gear is arranged on the outer surface of the extension shaft, a side meshing bevel gear is arranged on one side of each rotating bevel gear in a meshed mode, a rotating matching shaft is arranged on one side of each side meshing bevel gear, a clamping groove is formed in the matching block, the rotating matching shaft is in rotating matching connection with the clamping groove, and a rotating structure facilitating personnel to rotate is arranged on one side of the rotating matching shaft.
6. The plastic masterbatch production facility of claim 5, characterized in that: the rotating structure comprises two side turning rods which are connected with the rotating matching shaft in a rotating matching mode, and the side turning rods are connected with the clamping grooves in a sliding matching mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813809.6A CN113478700A (en) | 2021-07-19 | 2021-07-19 | Degradable environmental protection plastics master batch production facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110813809.6A CN113478700A (en) | 2021-07-19 | 2021-07-19 | Degradable environmental protection plastics master batch production facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113478700A true CN113478700A (en) | 2021-10-08 |
Family
ID=77941386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110813809.6A Withdrawn CN113478700A (en) | 2021-07-19 | 2021-07-19 | Degradable environmental protection plastics master batch production facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113478700A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272019Y (en) * | 2008-07-15 | 2009-07-15 | 佛山市南海易乐工程塑料有限公司 | Extrusion screw rod structure of engineering plastics engineering plastics |
| CN104723532A (en) * | 2015-04-10 | 2015-06-24 | 天津煊生源高分子科技有限公司 | Barrel heater of extruder |
| CN206901209U (en) * | 2017-05-26 | 2018-01-19 | 江苏德尔瑞环保机械有限公司 | It is segmented dismountable helical axis and conveying worm |
| CN207905813U (en) * | 2018-01-19 | 2018-09-25 | 辽宁三三工业有限公司 | Screw conveyer of shield machine with radial removable sleeve structure |
| CN111250273A (en) * | 2020-01-21 | 2020-06-09 | 江苏大学 | Novel spiral blade for horizontal screw centrifuge |
| CN212949099U (en) * | 2020-08-17 | 2021-04-13 | 李华森 | Screw structure of double-screw extruder |
| CN213010357U (en) * | 2020-08-22 | 2021-04-20 | 玉环进盈机械有限公司 | Split type screw assembly in screw conveyer |
-
2021
- 2021-07-19 CN CN202110813809.6A patent/CN113478700A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201272019Y (en) * | 2008-07-15 | 2009-07-15 | 佛山市南海易乐工程塑料有限公司 | Extrusion screw rod structure of engineering plastics engineering plastics |
| CN104723532A (en) * | 2015-04-10 | 2015-06-24 | 天津煊生源高分子科技有限公司 | Barrel heater of extruder |
| CN206901209U (en) * | 2017-05-26 | 2018-01-19 | 江苏德尔瑞环保机械有限公司 | It is segmented dismountable helical axis and conveying worm |
| CN207905813U (en) * | 2018-01-19 | 2018-09-25 | 辽宁三三工业有限公司 | Screw conveyer of shield machine with radial removable sleeve structure |
| CN111250273A (en) * | 2020-01-21 | 2020-06-09 | 江苏大学 | Novel spiral blade for horizontal screw centrifuge |
| CN212949099U (en) * | 2020-08-17 | 2021-04-13 | 李华森 | Screw structure of double-screw extruder |
| CN213010357U (en) * | 2020-08-22 | 2021-04-20 | 玉环进盈机械有限公司 | Split type screw assembly in screw conveyer |
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Application publication date: 20211008 |
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