CN115157628A - Filtering device of pipe extruder - Google Patents
Filtering device of pipe extruder Download PDFInfo
- Publication number
- CN115157628A CN115157628A CN202210796844.6A CN202210796844A CN115157628A CN 115157628 A CN115157628 A CN 115157628A CN 202210796844 A CN202210796844 A CN 202210796844A CN 115157628 A CN115157628 A CN 115157628A
- Authority
- CN
- China
- Prior art keywords
- filter
- box
- filter plate
- plate
- containing box
- 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.)
- Pending
Links
- 238000001914 filtration Methods 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000011148 porous material Substances 0.000 claims abstract description 3
- 230000009471 action Effects 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Images
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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/69—Filters or screens for the moulding material
- B29C48/691—Arrangements for replacing filters, e.g. with two parallel filters for alternate use
-
- 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
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/27—Cleaning; Purging; Avoiding contamination
- B29C48/2725—Cleaning; Purging; Avoiding contamination of filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a filtering device of a pipe extruder, which comprises a filter body, wherein one end of the filter body is communicated with a forming die body, the other end of the filter body is communicated with a charging barrel body, the filter body comprises a filtering box, a discharging port of a feeding port of the filtering box is respectively communicated with the forming die body and the charging barrel body, one side of the filtering box is fixedly provided with a containing box, the other side of the filtering box is fixedly provided with an L-shaped bracket, a fixed sleeve is arranged in the containing box in a sliding manner, a first driving piece for driving the containing box to slide is arranged on the containing box, a plurality of filtering plates are sleeved in the fixed sleeve, the filtering plates are distributed in a laminated manner, the sizes of sieve pores on the filtering plates are different, and an inlet and an outlet of the first filtering plate are arranged on one side of the containing box, which is close to the filter body. According to the filter device, the required filter plate is moved to the inlet and outlet of the first filter plate by starting the motor, the filter plate is pushed to the discharge hole of the filter box by the extension cylinder, and meanwhile, the filter plate pushes the sealing plate to push the sealing plate into the L-shaped support, so that the filter plate is installed.
Description
Technical Field
The invention relates to a filtering device, in particular to a filtering device of a pipe extruder.
Background
The pipe can be plasticized and extruded by a single-screw extruder or a double-screw extruder, the single-screw extruder conveys materials by friction, the melting and plasticizing effects of the single-screw extruder are inferior to those of the double-screw extruder, but the manufacturing cost is low, polyethylene and polypropylene granules are generally formed by the single-screw extruder at present, most screws are not conventional three-section full-thread screws, mixing elements are added on the screws, and the mixing and plasticizing effects are enhanced.
The filtering mode of traditional tubular product extruder is generally to pack in the inside filtration plastics fuse-element of filter with the sieve plate, because the required quality of production of tubular product is different, consequently to the quality of the tubular product of the sieve control produced through changing the sieve mesh size, the mode of traditional change sieve is manual dismantlement, and the operation is complicated on the one hand, and the in-process that on the other hand was changed needs tubular product extruder stop work, and this has influenced the production efficiency of tubular product undoubtedly, does not solve above-mentioned problem, now provides a filtering device of tubular product extruder.
Disclosure of Invention
The invention aims to provide a filtering device of a pipe extruder, a required filter plate is moved to an inlet and outlet of a first filter plate by a starting motor, the filter plate corresponding to the filter plate is pushed to a discharge port of a filter box by an extension cylinder, and meanwhile, the filter plate pushes a sealing plate to push the sealing plate into an L-shaped bracket, so that the filter plate is installed.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a filter equipment of tubular product extruder, filter equipment include filter body, and filter body's one end intercommunication is equipped with the forming die body, and the other end intercommunication is equipped with feed cylinder body, filter body includes the filter cartridge, the discharge gate of the feed inlet of filter cartridge respectively with forming die body and feed cylinder body intercommunication, one side of filter cartridge is fixed with holds the box, and the opposite side is fixed with L type support, holds the box internal slip and is equipped with fixed cover, holds to be equipped with on the box and is used for driving and holds the gliding first driving piece of box.
The fixed cover is sleeved with a plurality of filter plates, the filter plates are distributed in a laminated mode, the sizes of sieve pores on the filter plates are different, and one side, close to the filter body, of the containing box is provided with a first filter plate inlet and a first filter plate outlet.
The L-shaped support is provided with a sealing plate used for sealing a discharge port of the filter box in a sliding manner, an elastic piece is connected between the sealing plate and the L-shaped support, the sealing plate covers the discharge port of the filter box under the action of the elastic piece, and a pushing piece used for pushing the filter plate is fixed on the containing box.
Furthermore, the two sides of the charging barrel body are respectively provided with a second filter inlet and outlet and a sealing plate inlet and outlet, the corresponding filter plates are aligned to the second filter inlet and outlet through a sliding fixing sleeve, the corresponding filter plates are pushed into a discharge port of the filter box through a pushing piece, and meanwhile, the filter plates push the sealing plates to be pushed into the L-shaped support.
Further, fixed cover is including the cover body, and the both sides inner wall of the cover body all is equipped with stops the strip, and the outer wall of the cover body is fixed with the connecting block, is equipped with the screw hole on the connecting block.
Furthermore, the first driving part comprises a motor fixed on the containing box, and a screw rod matched with the threaded hole is fixed on an output shaft of the motor.
Further, the filter includes the filter body, and two corners that the filter body is close to the impeller all are equipped with the rectangle incision, and the rectangle incision is contradicted on stopping the strip, and rectangle incision in-connection is equipped with the recess.
Furthermore, the pushing part comprises an air cylinder fixed on the outer wall of the containing box, a U-shaped rod is fixed on the side wall of the containing box, which is penetrated by an output shaft of the air cylinder, sliding blocks are arranged on two side rods of the U-shaped rod, and the sliding blocks are positioned in grooves in the corresponding filter plates.
Further, the inner wall that first filter imported and exported is equipped with the strip brush, and the strip brush is used for dredging when the filter passes first filter and imports and exports.
The invention has the beneficial effects that:
1. according to the filter device, a required filter plate is moved to the inlet and outlet of the first filter plate by starting the motor, the filter plate is pushed to the discharge port of the filter box by the extending cylinder, and meanwhile, the filter plate pushes the seal plate to push the seal plate into the L-shaped bracket, so that the filter plate is installed;
2. when the filter plate of the filtering device is replaced, the sealing plate can be retracted into the fixed sleeve only by retracting the air cylinder, and the sealing plate moves along with the sealing plate under the action of the elastic piece to seal the discharge port of the filter box, so that the filtering device can replace the filter plate in the working process of the extruder and prevent materials in the forming die body from directly flowing into the charging barrel body without being filtered to influence the quality of the produced pipe in the process of replacing the filter plate.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the construction of a filtration apparatus of the present invention;
FIG. 2 is a schematic sectional view of a filter device according to the present invention;
FIG. 3 is a schematic view of a portion of the filter apparatus of the present invention;
FIG. 4 is a schematic view of a portion of the filter apparatus of the present invention;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 3;
FIG. 6 is a schematic view of a portion of the filter apparatus of the present invention;
fig. 7 is a schematic view of the structure of the fixing sleeve of the present invention;
in the figure: 1. forming a die body; 2. a filter body; 3. a cartridge body; 21. a filter cartridge; 22. an L-shaped bracket; 23. a containing box; 24. fixing a sleeve; 25. a first driving member; 26. a filter plate; 210. an inlet and outlet of the first filter plate; 220. strip brushing; 28. a sealing plate; 29. an elastic member; 32. a second filter plate inlet/outlet; 31. sealing the inlet and outlet of the plate; 27. a pusher member; 241. a sleeve body; 244. a barrier strip; 242. connecting blocks; 243. a threaded hole; 251. a motor; 252. a screw rod; 261. a filter plate body; 262. a rectangular cut; 263. a groove; 271. a cylinder; 272. a U-shaped rod; 273. and (4) a sliding block.
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.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship merely to facilitate description of the invention and to simplify the description, and are not intended to indicate or imply that the referenced components or elements must be in a particular orientation, constructed and operative in a particular orientation, and are not to be construed as limiting the invention.
A filtering device of a pipe extruder comprises a filter body 2, as shown in figure 1, one end of the filter body 2 is communicated with a forming die body 1, and the other end of the filter body is communicated with a charging barrel body 3.
The filter body 2 comprises a filter box 21, as shown in fig. 2, a discharge port of a feed inlet of the filter box 21 is respectively communicated with the forming die body 1 and the charging barrel body 3, one side of the filter box 21 is fixed with a containing box 23, the other side of the filter box 21 is fixed with an L-shaped bracket 22, a fixing sleeve 24 is arranged in the containing box 23 in a sliding manner, and a first driving part 25 used for driving the containing box 23 to slide is arranged on the containing box 23.
A plurality of filter plates 26 are sleeved in the fixed sleeve 24, as shown in fig. 3 and 6, the filter plates 26 are stacked, the sizes of the sieve holes on the filter plates 26 are different, one side of the containing box 23 close to the filter body 2 is provided with a first filter plate inlet and outlet 210, the inner wall of the first filter plate inlet and outlet 210 is provided with a strip brush 220, and the strip brush 220 is used for dredging when the filter plates 26 pass through the first filter plate inlet and outlet 210.
A sealing plate 28 for sealing the discharge hole of the filter box 21 is slidably arranged on the L-shaped support 22, an elastic member 29 is connected between the sealing plate 28 and the L-shaped support 22, and the sealing plate 28 covers the discharge hole of the filter box 21 under the action of the elastic member 29.
The two sides of the charging barrel body 3 are respectively provided with a second filter inlet and outlet 32 and a sealing plate inlet and outlet 31, the corresponding filter 26 is aligned to the second filter inlet and outlet 32 through a sliding fixing sleeve 24, a pushing piece 27 for pushing the filter 26 is fixed on the holding box 23, the corresponding filter 26 is pushed into the discharge port of the filter box 21 through the pushing piece 27, meanwhile, the filter 26 pushes the sealing plate 28 to push the sealing plate into the L-shaped support 22, and the edge of the filter 26 can seal the periphery of the discharge port.
The fixing sleeve 24 includes a sleeve body 241, as shown in fig. 7, two side inner walls of the sleeve body 241 are respectively provided with a stop strip 244, the outer wall of the sleeve body 241 is fixed with a connecting block 242, and the connecting block 242 is provided with a threaded hole 243.
The first driving member 25 includes a motor 251 fixed to the housing case 23, and a screw 252 engaged with the screw hole 243 is fixed to an output shaft of the motor 251.
The filter plate 26 includes a filter plate body 261, as shown in fig. 5, two corners of the filter plate body 261 near the pushing member 27 are both provided with a rectangular notch 262, the rectangular notch 262 abuts against the stop strip 244, by providing the stop strip 244, the filter plate 26 to be used is prevented from moving in the fixing sleeve 24, and a groove 263 is connected in the rectangular notch 262.
The pushing member 27 comprises an air cylinder 271 fixed on the outer wall of the containing box 23, as shown in fig. 4, an output shaft of the air cylinder 271 penetrates through the side wall of the containing box 23 to be fixed with a U-shaped rod 272, sliding blocks 273 are arranged on both side rods of the U-shaped rod 272, and the sliding blocks 273 are positioned in the corresponding grooves 263 on the filter plates 26.
During the use, remove required filter 26 to first filter import and export 210 through starter motor 251, will correspond through extension cylinder 271 and push the discharge gate that filter 26 pushed to filter cartridge 21, filter 26 promotes the closing plate 28 and pushes it in L type support 22 simultaneously, realize the installation to filter 26, when changing filter 26, only need shrink cylinder 271 alright with closing plate 28 withdraw fixed cover 24 in, closing plate 28 moves under the effect of elastic component 29 this moment, realize the sealed to filter cartridge 21 discharge gate, consequently should filter both can change the filter at the in-process of extruder work, can avoid the material in the forming die body 1 directly to flow into feed cylinder body 3 under the condition of not filterable again at the in-process of changing the filter, influence the quality of the tubular product of producing.
Meanwhile, as the strip brush 220 is arranged in the first filter plate inlet/outlet 210, when the filter plate is blocked, the filter plate 26 can be unblocked through the telescopic cylinder 271 in the working process of the extruder.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed.
Claims (7)
1. A filtering device of a pipe extruder comprises a filter body (2), wherein one end of the filter body (2) is communicated with a forming die body (1), the other end of the filter body (2) is communicated with a charging barrel body (3), the filtering device is characterized in that the filter body (2) comprises a filtering box (21), a discharge hole of a feed inlet of the filtering box (21) is respectively communicated with the forming die body (1) and the charging barrel body (3), one side of the filtering box (21) is fixedly provided with a containing box (23), the other side of the filtering box is fixedly provided with an L-shaped bracket (22), a fixing sleeve (24) is arranged in the containing box (23) in a sliding manner, and a first driving piece (25) for driving the containing box (23) to slide is arranged on the containing box (23);
a plurality of filter plates (26) are sleeved in the fixed sleeve (24), the filter plates (26) are distributed in a laminated manner, the sizes of sieve pores on the filter plates (26) are different, and one side of the containing box (23) close to the filter body (2) is provided with a first filter plate inlet and outlet (210);
the L-shaped support (22) is provided with a sealing plate (28) in a sliding mode, the sealing plate is used for sealing a discharge hole of the filter box (21), an elastic piece (29) is connected between the sealing plate (28) and the L-shaped support (22), the sealing plate (28) covers the discharge hole of the filter box (21) under the action of the elastic piece (29), and a pushing piece (27) used for pushing the filter plate (26) is fixed on the containing box (23).
2. The filtering device of a pipe extruder as claimed in claim 1, wherein the cartridge body (3) is provided with a second filter plate inlet/outlet (32) and a sealing plate inlet/outlet (31) on both sides, the corresponding filter plate (26) is aligned with the second filter plate inlet/outlet (32) by the sliding fixing sleeve (24), the corresponding filter plate (26) is pushed into the outlet of the filter cartridge (21) by the pushing member (27), and the filter plate (26) pushes the sealing plate (28) into the L-shaped holder (22).
3. The filtering device of the pipe extruder as claimed in claim 2, wherein the fixing sleeve (24) comprises a sleeve body (241), the inner walls of both sides of the sleeve body (241) are provided with the barrier strips (244), the outer wall of the sleeve body (241) is fixed with the connecting block (242), and the connecting block (242) is provided with the threaded hole (243).
4. The filtering device of a pipe extruder according to claim 3, wherein the first driving member (25) comprises a motor (251) fixed on the containing box (23), and a screw rod (252) matched with the threaded hole (243) is fixed on an output shaft of the motor (251).
5. A filtering device of a pipe extruder according to claim 3 or 4, wherein the filter plate (26) comprises a filter plate body (261), both corners of the filter plate body (261) close to the pushing member (27) are provided with rectangular notches (262), the rectangular notches (262) abut against the blocking strips (244), and the rectangular notches (262) are communicated with a groove (263).
6. A tube extruder filter unit according to claim 5, wherein the pushing member (27) comprises a cylinder (271) fixed to the outer wall of the containing box (23), the output shaft of the cylinder (271) is fixed to a U-shaped rod (272) extending through the side wall of the containing box (23), and sliding blocks (273) are provided on both side rods of the U-shaped rod (272), and the sliding blocks (273) are located in the grooves (263) of the corresponding filter plates (26).
7. The filtering device of the pipe extruder according to claim 1, wherein the inner wall of the first filter plate inlet/outlet (210) is provided with a strip brush (220), and the strip brush (220) is used for dredging when the filter plate (26) passes through the first filter plate inlet/outlet (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796844.6A CN115157628A (en) | 2022-07-08 | 2022-07-08 | Filtering device of pipe extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210796844.6A CN115157628A (en) | 2022-07-08 | 2022-07-08 | Filtering device of pipe extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115157628A true CN115157628A (en) | 2022-10-11 |
Family
ID=83490871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210796844.6A Pending CN115157628A (en) | 2022-07-08 | 2022-07-08 | Filtering device of pipe extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115157628A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015010329A1 (en) * | 2013-07-26 | 2015-01-29 | Wei Zhengcai | Filter without wire mesh |
| CN205951251U (en) * | 2016-08-30 | 2017-02-15 | 佛山市高明科力机械有限公司 | A trade wire stitcher for PS foaming series connection extruder |
| CN207105570U (en) * | 2017-07-18 | 2018-03-16 | 苏州祥侯新材料科技有限公司 | The head quick-changing type filter of EPP granulating extruders |
| CN209350854U (en) * | 2018-12-08 | 2019-09-06 | 武汉唯康管业有限公司 | A kind of filter device of plastic extruder |
| CN110539418A (en) * | 2019-09-30 | 2019-12-06 | 六安七茗道机电科技有限公司 | molten plastic filtering component |
| US20190381714A1 (en) * | 2016-01-20 | 2019-12-19 | Zhe Jiang Houpu Technology Co., Ltd. | Continuous screen changer, screen changing device, and extruder |
| CN210057525U (en) * | 2019-05-06 | 2020-02-14 | 江苏欧廷高分子材料有限公司 | Filtering device for processing ethylene propylene diene monomer insulating material |
| CN210362391U (en) * | 2019-07-04 | 2020-04-21 | 南京鳄鱼节能科技有限公司 | Filtering device of screw extruder |
| CN111590861A (en) * | 2020-05-09 | 2020-08-28 | 嘉兴达宝文线缆有限公司 | Shock attenuation formula cable oversheath extrusion device |
| CN212920424U (en) * | 2020-07-30 | 2021-04-09 | 天津力天医药包装材料有限责任公司 | Anti-static medicinal packaging bag production equipment |
| CN214448362U (en) * | 2021-03-15 | 2021-10-22 | 苏州兆管鑫塑料科技有限公司 | Roll up core pipe mould convenient to dismantle |
| CN216760771U (en) * | 2022-01-10 | 2022-06-17 | 绍兴日月新材料有限公司 | Filter for production line extruder |
-
2022
- 2022-07-08 CN CN202210796844.6A patent/CN115157628A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015010329A1 (en) * | 2013-07-26 | 2015-01-29 | Wei Zhengcai | Filter without wire mesh |
| US20190381714A1 (en) * | 2016-01-20 | 2019-12-19 | Zhe Jiang Houpu Technology Co., Ltd. | Continuous screen changer, screen changing device, and extruder |
| CN205951251U (en) * | 2016-08-30 | 2017-02-15 | 佛山市高明科力机械有限公司 | A trade wire stitcher for PS foaming series connection extruder |
| CN207105570U (en) * | 2017-07-18 | 2018-03-16 | 苏州祥侯新材料科技有限公司 | The head quick-changing type filter of EPP granulating extruders |
| CN209350854U (en) * | 2018-12-08 | 2019-09-06 | 武汉唯康管业有限公司 | A kind of filter device of plastic extruder |
| CN210057525U (en) * | 2019-05-06 | 2020-02-14 | 江苏欧廷高分子材料有限公司 | Filtering device for processing ethylene propylene diene monomer insulating material |
| CN210362391U (en) * | 2019-07-04 | 2020-04-21 | 南京鳄鱼节能科技有限公司 | Filtering device of screw extruder |
| CN110539418A (en) * | 2019-09-30 | 2019-12-06 | 六安七茗道机电科技有限公司 | molten plastic filtering component |
| CN111590861A (en) * | 2020-05-09 | 2020-08-28 | 嘉兴达宝文线缆有限公司 | Shock attenuation formula cable oversheath extrusion device |
| CN212920424U (en) * | 2020-07-30 | 2021-04-09 | 天津力天医药包装材料有限责任公司 | Anti-static medicinal packaging bag production equipment |
| CN214448362U (en) * | 2021-03-15 | 2021-10-22 | 苏州兆管鑫塑料科技有限公司 | Roll up core pipe mould convenient to dismantle |
| CN216760771U (en) * | 2022-01-10 | 2022-06-17 | 绍兴日月新材料有限公司 | Filter for production line extruder |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221011 |
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| RJ01 | Rejection of invention patent application after publication |