CN113246338B - Feeding device for thermoplastic polyurethane elastomer film production - Google Patents
Feeding device for thermoplastic polyurethane elastomer film production Download PDFInfo
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- CN113246338B CN113246338B CN202110723636.9A CN202110723636A CN113246338B CN 113246338 B CN113246338 B CN 113246338B CN 202110723636 A CN202110723636 A CN 202110723636A CN 113246338 B CN113246338 B CN 113246338B
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- gear
- supporting
- connecting cylinder
- thermoplastic polyurethane
- polyurethane elastomer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/10—Conditioning or physical treatment of the material to be shaped by grinding, e.g. by triturating; by sieving; by filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
Abstract
The invention discloses a feeding device for thermoplastic polyurethane elastomer film production, which comprises a tank body, wherein a connecting cylinder is fixedly communicated with the tank body, the connecting cylinder is of a hollow structure with two communicated ends, and a feeding structure is arranged on the connecting cylinder; the upper end of the connecting cylinder is fixedly provided with an installation plate, the installation plate is provided with an extrusion plate through a telescopic structure, and the extrusion plate is installed in the connecting cylinder in a sliding and sealing manner; and a screen is arranged in the connecting cylinder through a first supporting component. Has the advantages that: the extrusion plate, the air cylinder, the telescopic rod and the screen mesh are matched for use, so that an extrusion crushing effect can be generated on the raw materials after primary screening on the raw materials with larger particles, and the raw materials can meet the use requirement; simultaneously, the cylinder can indirectly drive the screen to rotate during working through the matching use of the first connecting rod, the toothed rod, the transmission gear, the first bevel gear, the second bevel gear and the second connecting rod, so that the blocking condition can be effectively reduced to a certain extent.
Description
Technical Field
The invention relates to the technical field of film production, in particular to a feeding device for thermoplastic polyurethane elastomer film production.
Background
The thermoplastic polyurethane elastomer film needs to be subjected to hot melting treatment on raw materials in the production process, and the raw materials can be matched with a feeding device for use in operation, but the existing feeding device has the following defects in the specific use process: although the principle to bigger granule sieves, but do not in time carry out crushing treatment to the raw materials of bigger granule at the feed in-process, after the feed, just handle the large granule material of screening alone, it is comparatively inconvenient to operate.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a feeding device for producing a thermoplastic polyurethane elastomer film.
In order to achieve the purpose, the invention adopts the following technical scheme:
a feeding device for thermoplastic polyurethane elastomer film production comprises a tank body, wherein a connecting cylinder is fixedly communicated with the tank body, the connecting cylinder is of a hollow structure with two communicated ends, and a feeding structure is arranged on the connecting cylinder;
the upper end of the connecting cylinder is fixedly provided with an installation plate, the installation plate is provided with an extrusion plate through a telescopic structure, and the extrusion plate is installed in the connecting cylinder in a sliding and sealing manner;
a screen is arranged in the connecting cylinder through a first supporting component;
a rotating shaft is rotatably mounted in the tank body, a transmission gear and a first helical gear are coaxially and fixedly mounted on the rotating shaft, a first connecting rod is fixedly mounted at the lower end of the extrusion plate, the lower end of the first connecting rod penetrates through the screen mesh in a sliding mode, a rack bar is fixedly mounted on the first connecting rod, the rack bar is meshed with the transmission gear, a second helical gear is fixedly mounted on the lower surface of the screen mesh through a plurality of second connecting rods, and the second helical gear is meshed with the first helical gear;
a first gear is fixedly installed on the second helical gear, a second gear is installed in the tank body through a supporting structure, and the second gear is meshed with the first gear;
the tank body is internally provided with a support ring through a second support assembly, the lower surface of the support ring is fixedly provided with a toothed ring through a plurality of third connecting rods, and the toothed ring is meshed with the gear.
In the feeding device for thermoplastic polyurethane elastomer film production, the feeding structure consists of a feeding pipe and a feeding seat, the connecting cylinder is fixedly communicated with the feeding pipe, and the feeding pipe is fixedly communicated with the feeding seat.
In the feeding device for thermoplastic polyurethane elastomer film production, the telescopic structure comprises the air cylinder and the telescopic rod, the air cylinder is fixedly mounted at the upper end of the mounting plate, the telescopic rod is mounted on the air cylinder, and the lower end of the telescopic rod penetrates through the mounting plate and is fixedly connected with the upper surface of the extrusion plate.
In the feeding device for thermoplastic polyurethane elastomer film production, the first support component is composed of a plurality of first arc-shaped support blocks and a first annular groove, the plurality of first arc-shaped support blocks are fixedly installed on the outer wall of the screen at equal intervals, and the first annular groove matched with the first arc-shaped support blocks is formed in the inner wall of the connecting cylinder.
In the feeding device for thermoplastic polyurethane elastomer film production, the supporting structure consists of the supporting plate and the supporting rod, the supporting plate is fixedly installed in the tank body, the supporting rod is rotatably installed on the supporting plate, and the second gear is fixedly installed on the supporting rod.
In the feeding device for the production of the thermoplastic polyurethane elastomer film, the second support assembly consists of a plurality of second arc-shaped support blocks and a second annular groove, the second annular groove is formed in the inner wall of the tank body, and the second arc-shaped support blocks matched with the second annular groove are fixedly installed on the outer wall of the support ring at equal intervals.
In the feeding device for thermoplastic polyurethane elastomer film production, a dispersion seat is fixedly mounted on the plurality of second connecting rods together, a mounting block is rotatably mounted on the dispersion seat, and a sliding hole matched with the toothed bar is formed in the mounting block.
In the feeding device for producing the thermoplastic polyurethane elastomer film, a plurality of scattering plates matched with the scattering seats are fixedly arranged in the supporting ring.
Compared with the prior art, the invention has the advantages that:
1: the cooperation that utilizes stripper plate, cylinder, telescopic link, screen cloth to use can produce an extrusion broken effect to the raw materials of great granule after preliminary screening to make the raw materials can satisfy and use the needs.
2: through the cooperation use of connecting rod one, ratch, drive gear, helical gear one, helical gear two and connecting rod two for the cylinder can indirectly drive the screen cloth and rotate at the during operation, thereby can effectually reduce the emergence of jam condition to a certain extent.
3: through the cooperation use of gear one, gear two, arc supporting shoe two, support ring, connecting rod three, ring gear, dispersion seat and break up the board, can play a broken effect of breaking up to the raw materials that pass the screen mesh and fall to further reduce the particle size of raw materials, be convenient for better use.
Drawings
FIG. 1 is a schematic structural diagram of a feeding device for producing a thermoplastic polyurethane elastomer film according to the present invention;
FIG. 2 is a schematic view of the internal structure of a feeding pipe and a connecting cylinder in a feeding device for producing a thermoplastic polyurethane elastomer film according to the present invention;
FIG. 3 is a schematic view of the support ring of FIG. 2 after being rotated by a certain angle;
FIG. 4 is a schematic view of the gear ring of FIG. 2 after being rotated by a certain angle;
FIG. 5 is a schematic view of the dispersing seat portion of FIG. 4;
FIG. 6 is a schematic structural diagram of a breaker portion of a feeding device for producing a thermoplastic polyurethane elastomer film according to the present invention.
In the figure: 1 tank body, 2 connecting cylinders, 3 feeding pipes, 4 feeding seats, 5 mounting plates, 6 extrusion plates, 7 cylinders, 8 telescopic rods, 9 screens, 10 arc-shaped supporting blocks I, 11 rotating shafts, 12 transmission gears, 13 bevel gears I, 14 connecting rods I, 15 toothed bars, 16 connecting rods II, 17 bevel gears II, 18 gears I, 19 supporting plates, 20 supporting rods, 21 gears II, 22 arc-shaped supporting blocks II, 23 supporting rings, 24 connecting rods III, 25 toothed rings, 26 dispersing seats, 27 sliding holes and 28 dispersing plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the feeding device for thermoplastic polyurethane elastomer film production comprises a tank body 1, wherein a connecting cylinder 2 is fixedly communicated with the tank body 1, the connecting cylinder 2 is a hollow structure with two communicated ends, and a feeding structure is arranged on the connecting cylinder 2;
the above is noteworthy for the following two points:
1. the feeding structure consists of a feeding pipe 3 and a feeding seat 4, the connecting cylinder 2 is fixedly communicated with the feeding pipe 3, and the feeding pipe 3 is fixedly communicated with the feeding seat 4.
2. The junction of feed pipe 3 and feed seat 4 is located the below position of feed seat 4, and the inner wall of feed seat 4 sets up for the slope simultaneously to make the material that gets into in the feed seat 4 can be better the landing to the feed pipe 3 in.
Referring to fig. 1 and 2, a mounting plate 5 is fixedly mounted at the upper end of the connecting cylinder 2, an extrusion plate 6 is mounted on the mounting plate 5 through a telescopic structure, and the extrusion plate 6 is slidably and hermetically mounted in the connecting cylinder 2;
the following points are notable:
1. the telescopic structure comprises cylinder 7, telescopic link 8, and the upper end fixed mounting of mounting panel 5 has cylinder 7, installs telescopic link 8 on the cylinder 7, and the lower extreme of telescopic link 8 run through mounting panel 5 and be connected with the last fixed surface of stripper plate 6.
2. The cylinder 7 is a device commonly used in the existing life and production, and the specific internal structure and the specific operation principle thereof are not specifically described herein.
3. The mounting plate 5 is provided with a controller for controlling the operation of the air cylinder 7, and a PLC (programmable logic controller) can be specifically adopted.
4. The outer wall cover of stripper plate 6 is equipped with the sealing washer, utilizes the elasticity that the sealing washer has to improve its sealed effect when sliding in connecting cylinder 2.
Referring to fig. 2, a screen 9 is installed in the connecting cylinder 2 through a first supporting component;
the above is noteworthy for the following two points:
1. the first supporting component is composed of a plurality of arc-shaped supporting blocks 10 and a first annular groove, the outer wall of the screen 9 is fixedly provided with the arc-shaped supporting blocks 10 at equal intervals, and the inner wall of the connecting cylinder 2 is provided with the first annular groove matched with the arc-shaped supporting blocks 10.
2. The outer wall of the screen 9 is sleeved with two rubber rings I which are fixedly arranged on two sides of the arc-shaped supporting block I10 respectively, and the abrasion generated when the rubber rings I and the arc-shaped supporting block I rotate relatively can be reduced by using the elasticity of the rubber rings I.
Referring to fig. 2-5, a rotating shaft 11 is rotatably mounted in the tank body 1, a transmission gear 12 and a first helical gear 13 are coaxially and fixedly mounted on the rotating shaft 11, a first connecting rod 14 is fixedly mounted at the lower end of the extrusion plate 6, the lower end of the first connecting rod 14 slidably penetrates through the screen 9 and is fixedly mounted with a rack 15, the rack 15 is meshed with the transmission gear 12, a second helical gear 17 is fixedly mounted on the lower surface of the screen 9 through a plurality of second connecting rods 16, and the second helical gear 17 is meshed with the first helical gear 13.
Referring to fig. 3-5, a first gear 18 is fixedly installed on the second helical gear 17, a second gear 21 is installed in the tank body 1 through a supporting structure, and the second gear 21 is meshed with the first gear 18;
the following points are notable:
1. the supporting structure is composed of a supporting plate 19 and a supporting rod 20, the supporting plate 19 is fixedly installed in the tank body 1, the supporting rod 20 is installed on the supporting plate 19 in a rotating mode, and the second gear 21 is fixedly installed on the supporting rod 20.
2. The upper end surface of the supporting plate 19 has a certain radian, so that raw materials are not easy to be accumulated on the supporting plate 19 in the falling process.
3. A conical cover cylinder (not shown in the figure) can be fixedly arranged on the second gear 21, and the fed raw materials can be effectively prevented from being accumulated on the second gear 21 by utilizing the unique shape (cambered surface) of the conical cover cylinder.
Referring to fig. 3-6, a support ring 23 is installed in the tank body 1 through a second support assembly, a toothed ring 25 is fixedly installed on the lower surface of the support ring 23 through a plurality of third connecting rods 24, and the toothed ring 25 is meshed with the second gear 21;
the following points are notable:
1. the second supporting component is composed of a plurality of second arc-shaped supporting blocks 22 and a second annular groove, the second annular groove is formed in the inner wall of the tank body 1, and the plurality of second arc-shaped supporting blocks 22 matched with the second annular groove are fixedly installed on the outer wall of the supporting ring 23 at equal intervals.
2. Two rubber rings II are fixedly mounted on the outer wall of the support ring 23 and are respectively positioned on two sides of the arc-shaped support block II 22, and the abrasion generated when the rubber rings II and the tank body 1 rotate relatively can be effectively reduced by utilizing the elasticity of the rubber rings II.
3. A third rubber ring can be fixed on the outer wall of the gear ring 25, and the abrasion generated when the third rubber ring rotates relative to the tank body 1 can be effectively reduced by utilizing the elasticity of the third rubber ring.
4. The second connecting rods 16 are fixedly provided with a dispersing seat 26 together, the dispersing seat 26 is rotatably provided with a mounting block, and the mounting block is provided with a sliding hole 27 matched with the toothed bar 15.
5. The mounting block is arranged so that rotation of the dispersion seat 26 does not affect the vertical up and down movement of the rack bar 15.
6. A plurality of scattering plates 28 matched with the scattering seats 26 are fixedly arranged in the supporting ring 23; the dispersing plate 28 rotates in the opposite direction to the dispersing base 26 to provide a better dispersing and crushing effect on the material sliding out of the dispersing base 26.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
In the invention, raw materials to be put into the feeding seat 4 are poured into the connecting cylinder 2 through the feeding pipe 3, and then the small-particle raw materials directly fall into the tank body 1 through the screen 9, and the larger-particle raw materials are intercepted on the screen 9;
the air cylinder 7 starts to work, the telescopic rod 8 is made to stretch and retract by the work of the air cylinder 7, the air cylinder 7 extends to directly drive the extrusion plate 6 to move downwards, a crushing effect is directly generated on the raw materials intercepted on the screen mesh 9, meanwhile, the extrusion plate 6 moves downwards to drive the toothed bar 15 to move downwards through the connecting rod I14, the toothed bar 15 moves downwards to drive the transmission gear 12 meshed with the toothed bar to rotate, the transmission gear 12 rotates to drive the helical gear I13 coaxially arranged with the transmission gear to rotate, the helical gear I13 rotates to drive the helical gear II 17 meshed with the helical gear to rotate, the helical gear II 17 rotates to drive the screen mesh 9 to rotate through the connecting rod II 16, and the screen mesh 9 rotates to effectively reduce the occurrence of;
the second helical gear 17 rotates to drive the first gear 18 fixedly connected with the second helical gear to rotate together, the first gear 18 rotates to drive the gear ring 25 to rotate through the second gear 21, the gear ring 25 rotates to drive the support ring 23 to rotate through the third connecting rod 24, and the support ring 23 rotates to drive the scattering plate 28 fixedly connected with the support ring to rotate together;
the screen cloth 9 rotates and drives the dispersing seat 26 to rotate through the second connecting rod 16, and the raw materials falling down through the screen cloth 9 can slide out of the dispersing seat 26 along a certain inclination and collide with the scattering plate 28 by utilizing the rotation of the dispersing seat 26, so that the crushing effect on the raw materials is further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A feeding device for thermoplastic polyurethane elastomer film production comprises a tank body (1) and is characterized in that a connecting cylinder (2) is fixedly communicated with the tank body (1), the connecting cylinder (2) is of a hollow structure with two communicated ends, and a feeding structure is mounted on the connecting cylinder (2);
the upper end of the connecting cylinder (2) is fixedly provided with an installation plate (5), the installation plate (5) is provided with an extrusion plate (6) through a telescopic structure, and the extrusion plate (6) is installed in the connecting cylinder (2) in a sliding and sealing manner;
a screen (9) is arranged in the connecting cylinder (2) through a first supporting component;
a rotating shaft (11) is rotatably mounted in the tank body (1), a transmission gear (12) and a first helical gear (13) are coaxially and fixedly mounted on the rotating shaft (11), a first connecting rod (14) is fixedly mounted at the lower end of the extrusion plate (6), the lower end of the first connecting rod (14) penetrates through the screen (9) in a sliding mode and is fixedly mounted with a rack bar (15), the rack bar (15) is meshed with the transmission gear (12), a second helical gear (17) is fixedly mounted on the lower surface of the screen (9) through a plurality of second connecting rods (16), and the second helical gear (17) is meshed with the first helical gear (13);
a first gear (18) is fixedly installed on the second helical gear (17), a second gear (21) is installed in the tank body (1) through a supporting structure, and the second gear (21) is meshed with the first gear (18);
the support ring (23) is installed in the tank body (1) through the second support assembly, a gear ring (25) is fixedly installed on the lower surface of the support ring (23) through a plurality of third connecting rods (24), and the gear ring (25) is meshed with the second gear (21).
2. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein the feeding structure comprises a feeding pipe (3) and a feeding seat (4), the feeding pipe (3) is fixedly communicated with the connecting cylinder (2), and the feeding seat (4) is fixedly communicated with the feeding pipe (3).
3. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein the telescopic structure comprises a cylinder (7) and a telescopic rod (8), the cylinder (7) is fixedly mounted at the upper end of the mounting plate (5), the telescopic rod (8) is mounted on the cylinder (7), and the lower end of the telescopic rod (8) penetrates through the mounting plate (5) and is fixedly connected with the upper surface of the extrusion plate (6).
4. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein the first supporting component is composed of a plurality of first arc-shaped supporting blocks (10) and a first annular groove, the plurality of first arc-shaped supporting blocks (10) are fixedly installed on the outer wall of the screen (9) at equal intervals, and the first annular groove matched with the first arc-shaped supporting blocks (10) is formed in the inner wall of the connecting cylinder (2).
5. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein the supporting structure is composed of a supporting plate (19) and a supporting rod (20), the supporting plate (19) is fixedly installed in the tank body (1), the supporting rod (20) is rotatably installed on the supporting plate (19), and the second gear (21) is fixedly installed on the supporting rod (20).
6. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein the second supporting component is composed of a plurality of second arc-shaped supporting blocks (22) and a second annular groove, the second annular groove is formed in the inner wall of the tank body (1), and the second arc-shaped supporting blocks (22) matched with the second annular groove are fixedly installed on the outer wall of the supporting ring (23) at equal intervals.
7. The feeding device for the production of the thermoplastic polyurethane elastomer film as claimed in claim 1, wherein a dispersion seat (26) is fixedly mounted on the plurality of second connecting rods (16), a mounting block is rotatably mounted on the dispersion seat (26), and a sliding hole (27) matched with the toothed bar (15) is formed in the mounting block.
8. Feeding device for the production of thermoplastic polyurethane elastomer films according to claim 7, characterised in that a plurality of scattering plates (28) cooperating with the scattering seats (26) are fixedly mounted in the supporting ring (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723636.9A CN113246338B (en) | 2021-06-29 | 2021-06-29 | Feeding device for thermoplastic polyurethane elastomer film production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723636.9A CN113246338B (en) | 2021-06-29 | 2021-06-29 | Feeding device for thermoplastic polyurethane elastomer film production |
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| Publication Number | Publication Date |
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| CN113246338A CN113246338A (en) | 2021-08-13 |
| CN113246338B true CN113246338B (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110723636.9A Active CN113246338B (en) | 2021-06-29 | 2021-06-29 | Feeding device for thermoplastic polyurethane elastomer film production |
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| JPH09300353A (en) * | 1996-05-16 | 1997-11-25 | Kamitsukuri Miyoko | Apparatus for regenerating waste plastic |
| CN108789928A (en) * | 2018-05-18 | 2018-11-13 | 芜湖拓达电子科技有限公司 | A kind of plastics-production crushing thawing extrusion integration apparatus |
| CN108835687A (en) * | 2018-05-08 | 2018-11-20 | 安徽新希望饲料有限公司 | A kind of process units of feed |
| CN109940781A (en) * | 2019-04-12 | 2019-06-28 | 李志忠 | A kind of plastic grain and its preparation facilities and preparation method |
| CN210389779U (en) * | 2019-08-28 | 2020-04-24 | 佛山市华勇有机硅有限公司 | Crowded material filter screen subassembly of rubber mixing machine for silicon rubber processing |
| CN111421700A (en) * | 2020-04-25 | 2020-07-17 | 尚福平 | A breaker for production of waterborne polyurethane resin raw materials |
| CN211545256U (en) * | 2019-11-15 | 2020-09-22 | 江苏赛美特机械有限公司 | Feeding device is used in solid tyre production |
| CN111929785A (en) * | 2020-08-21 | 2020-11-13 | 广州大鹏机械设计有限公司 | Twisting and winding equipment and process for galvanized optical cable |
| CN212736651U (en) * | 2020-06-23 | 2021-03-19 | 南京市亚都塑业有限公司 | Mixed feed arrangement of hollow forming machine |
-
2021
- 2021-06-29 CN CN202110723636.9A patent/CN113246338B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09300353A (en) * | 1996-05-16 | 1997-11-25 | Kamitsukuri Miyoko | Apparatus for regenerating waste plastic |
| CN108835687A (en) * | 2018-05-08 | 2018-11-20 | 安徽新希望饲料有限公司 | A kind of process units of feed |
| CN108789928A (en) * | 2018-05-18 | 2018-11-13 | 芜湖拓达电子科技有限公司 | A kind of plastics-production crushing thawing extrusion integration apparatus |
| CN109940781A (en) * | 2019-04-12 | 2019-06-28 | 李志忠 | A kind of plastic grain and its preparation facilities and preparation method |
| CN210389779U (en) * | 2019-08-28 | 2020-04-24 | 佛山市华勇有机硅有限公司 | Crowded material filter screen subassembly of rubber mixing machine for silicon rubber processing |
| CN211545256U (en) * | 2019-11-15 | 2020-09-22 | 江苏赛美特机械有限公司 | Feeding device is used in solid tyre production |
| CN111421700A (en) * | 2020-04-25 | 2020-07-17 | 尚福平 | A breaker for production of waterborne polyurethane resin raw materials |
| CN212736651U (en) * | 2020-06-23 | 2021-03-19 | 南京市亚都塑业有限公司 | Mixed feed arrangement of hollow forming machine |
| CN111929785A (en) * | 2020-08-21 | 2020-11-13 | 广州大鹏机械设计有限公司 | Twisting and winding equipment and process for galvanized optical cable |
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| CN113246338A (en) | 2021-08-13 |
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