CN110774566A - Rubber extrusion device - Google Patents
Rubber extrusion device Download PDFInfo
- Publication number
- CN110774566A CN110774566A CN201911093944.7A CN201911093944A CN110774566A CN 110774566 A CN110774566 A CN 110774566A CN 201911093944 A CN201911093944 A CN 201911093944A CN 110774566 A CN110774566 A CN 110774566A
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- China
- Prior art keywords
- extrusion cylinder
- cylinder base
- extrusion
- cover body
- fixed
- 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
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Classifications
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- 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
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/397—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using a single screw
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- 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
- B29C48/265—Support structures or bases for apparatus, e.g. frames
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- 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
- B29C48/68—Barrels or cylinders
- B29C48/681—Barrels or cylinders for single screws
-
- 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
- B29C48/76—Venting, drying means; Degassing means
- B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
-
- 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
- B29C48/76—Venting, drying means; Degassing means
- B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
- B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a rubber extrusion device which comprises an extrusion cylinder base, wherein the upper end of the extrusion cylinder base is downwards sunken to form a groove cavity, the upper end of the extrusion cylinder base is detachably provided with a plurality of cover bodies, the cover bodies are sequentially arranged along the length direction of the extrusion cylinder base, the cover bodies and the extrusion cylinder are mutually enclosed to form an extrusion cylinder with a closed cavity, and a transmission screw rod is rotatably arranged in the extrusion cylinder; an air pump is further fixed on the outer side wall of the extrusion cylinder base, a main air pumping pipe is communicated with the air pump, one end of an auxiliary air pumping pipe is communicated with the main air pumping pipe, and the other end of the auxiliary air pumping pipe is detachably arranged on the cover body; firstly, the problem that the interior of the extrusion cylinder is not easy to clean is solved; secondly, the problems that steam is easy to generate in the extrusion process due to high temperature of raw materials, and the inside of an extruded material is easy to generate vacuoles if the steam is not discharged in time, so that the product quality is influenced are solved.
Description
Technical Field
The invention relates to rubber processing equipment, in particular to a rubber extrusion device.
Background
The rubber extruder, a basic device in the rubber industry, is one of the key devices affecting the quality of products, and plays a very important role in the production process of tires and rubber products. The development of the rubber extruder is in stages of a plunger type extruder, a screw type hot feeding extruder, a common cold feeding extruder, a main and auxiliary thread cold feeding extruder, a cold feeding exhaust extruder, a pin cold feeding extruder, a composite extruder and the like. In a rubber extruder, an extruding cylinder is often an integral non-detachable mechanism, a thread pushing mechanism is arranged in the extruding cylinder, rubber extruding raw materials are often remained on the inner wall of the extruding cylinder after the extruding cylinder is used for a long time, and the traditional integral extruding cylinder is inconvenient to detach and clean, so that the problem of mutual influence can be caused when different raw materials are used for extruding, and the quality of products is reduced; meanwhile, because the temperature of the raw materials is high, steam is easy to generate in the extrusion process, and if the steam is not discharged in time, the inside of the extruded material is easy to generate vacuole, so that the product quality is influenced.
Disclosure of Invention
The invention aims to provide a rubber extrusion device, which solves the problems that the traditional integrated extrusion cylinder is inconvenient to disassemble and clean, rubber extrusion raw materials are always remained on the inner wall of the extrusion cylinder, so that the mutual influence can be caused when different raw materials are used for extrusion, and the quality of a product is reduced; secondly, the problems that steam is easy to generate in the extrusion process due to high temperature of raw materials, and the inside of an extruded material is easy to generate vacuoles if the steam is not discharged in time, so that the product quality is influenced are solved.
In order to achieve the purpose, the invention provides a rubber extrusion device which comprises an extrusion cylinder base, wherein the upper end of the extrusion cylinder base is downwards sunken to form a groove cavity, the upper end of the extrusion cylinder base is detachably provided with a plurality of cover bodies, the cover bodies are sequentially arranged along the length direction of the extrusion cylinder base, the cover bodies and the extrusion cylinder are mutually enclosed to form the extrusion cylinder with a closed cavity, and a transmission screw rod is rotatably arranged in the extrusion cylinder;
the outer side wall of the extrusion barrel base is further fixed with an air pump, the air pump is communicated with a main air pumping pipe, one end of an auxiliary air pumping pipe is communicated with the main air pumping pipe, and the other end of the auxiliary air pumping pipe is detachably arranged on the cover body.
Preferably, the cross-section of extrusion section of thick bamboo base is the rectangle structure, the fit includes along the horizontal direction setting the diaphragm with fix the riser at diaphragm both ends.
Preferably, a through threaded hole is formed in the vertical plate, the auxiliary exhaust pipe comprises a first connecting pipe, a corrugated hose and a second connecting pipe which are sequentially communicated, the first connecting pipe is communicated with the main exhaust pipe, a threaded structure is arranged at one end of the second connecting pipe, and at least part of the threaded structure is twisted in the through threaded hole, so that the auxiliary exhaust pipe can be communicated with the closed cavity.
Preferably, an insertion rod arranged along the horizontal direction is fixed on one end face of the cover body, an insertion hole matched with the insertion rod is formed in the other end face of the cover body, and the cover bodies are connected through the insertion rod and the insertion hole.
Preferably, the one end of extruding cylinder base is fixed with the spacing lid body, the terminal surface of the spacing lid body is provided with the second jack, be close to the spacing lid body the inserted bar of the lid body inserts in the second jack.
Preferably, a feeding pipe fitting communicated with the closed cavity is fixed on the limit cover body.
Preferably, the up end of extrusion cylinder base is provided with the edge extrusion cylinder base length direction's spout, the lower extreme of the riser of the lid body is fixed with the inserted sheet, the inserted sheet inserts in the spout.
Preferably, be provided with the locking screw hole on the diaphragm of the lid body, two lock mutually through the retaining member between the lid body, the both ends of retaining member are respectively through the fix with screw two adjacent on the lid body, the screw is at least partly the twist in the locking screw hole.
Preferably, a through hole is formed in one end, far away from the limiting cover body, of the extruding barrel base, a bearing is fixed in the through hole, and one end of the transmission screw rod is rotatably arranged in the bearing.
Preferably, a spring is fixed in the jack.
According to the technical scheme, the invention provides a rubber extrusion device which comprises an extrusion cylinder base, wherein the upper end of the extrusion cylinder base is downwards sunken to form a groove cavity, the upper end of the extrusion cylinder base is detachably provided with a plurality of cover bodies, the cover bodies are sequentially arranged along the length direction of the extrusion cylinder base, the cover bodies and the extrusion cylinder are mutually enclosed to form the extrusion cylinder with a closed cavity, a transmission screw rod is rotatably arranged in the extrusion cylinder, the outer side wall of the extrusion cylinder base is also fixedly provided with an air suction pump, the air suction pump is communicated with a main air suction pipe, one end of an auxiliary air suction pipe is communicated with the main air suction pipe, and the other end of the auxiliary air suction pipe is detachably arranged on the cover bodies; the extruding cylinder of the extruding device is different from the traditional integrated type and consists of an extruding cylinder base and a plurality of cover bodies arranged on the extruding cylinder base, when the extruding cylinder needs to be cleaned, the cover bodies can be detached, the cover bodies and the base are convenient to clean, the extruding cylinder is also convenient to assemble, and the extruding cylinder is provided with an air pump, so that gas generated in the extruding cylinder can be discharged in the extruding process, vacuoles in the extruded finished product are prevented, and the product quality is improved; the extrusion device provided by the invention is simple in structure, can effectively clean the extrusion barrel, and solves the problems that different raw materials are mutually influenced when being extruded and the quality of a product is reduced; secondly, the problem that the content of the finished product is easy to generate vacuole is solved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a structural view of a rubber extrusion apparatus provided by the present invention;
FIG. 2 is a sectional view of a rubber extrusion apparatus provided by the present invention;
FIG. 3 is a structural view of an auxiliary suction pipe in the rubber extruding apparatus according to the present invention.
Description of the reference numerals
1-extrusion cylinder base 2-chute
3-through hole 4-limit cover body
5-feeding pipe fitting 6-second jack
7-cover body 8-inserted rod
9-locking screw hole 10-jack
11-tab 12-locking member
13-screw 14-transmission screw
15-through threaded hole 16-air pump
17-main suction pipe 18-first connection pipe
19-corrugated hose 20-second connecting pipe
21-thread structure
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, an orientation word such as "lengthwise direction" or the like included in a term merely represents an orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
As shown in fig. 1-3: the invention provides a rubber extrusion device which comprises an extrusion cylinder base 1, wherein the upper end of the extrusion cylinder base 1 is downwards sunken to form a groove cavity, the upper end of the extrusion cylinder base 1 is detachably provided with a plurality of cover bodies 7, the cover bodies 7 are sequentially arranged along the length direction of the extrusion cylinder base 1, the cover bodies 7 and the extrusion cylinder 1 are mutually enclosed to form an extrusion cylinder with a closed cavity, a transmission screw 14 is rotatably arranged in the extrusion cylinder, the outer side wall of the extrusion cylinder base 1 is also fixedly provided with an air suction pump 16, the air suction pump 16 is communicated with a main air suction pipe 17, one end of an auxiliary air suction pipe is communicated with the main air suction pipe 17, and the other end of the auxiliary air suction pipe is detachably arranged on the cover bodies 7. The extruding cylinder of the extruding device is different from the traditional integrated type and consists of an extruding cylinder base and a plurality of cover bodies arranged on the extruding cylinder base, when the extruding cylinder needs to be cleaned, the cover bodies can be detached, the cover bodies and the base are convenient to clean, the extruding cylinder is also convenient to assemble, and the extruding cylinder is provided with an air pump, so that gas generated in the extruding cylinder can be discharged in the extruding process, vacuoles in the extruded finished product are prevented, and the product quality is improved; the extrusion device provided by the invention is simple in structure, can effectively clean the extrusion barrel, and solves the problems that different raw materials are mutually influenced when being extruded and the quality of a product is reduced; secondly, the problem that the content of the finished product is easy to generate vacuole is solved.
In a preferred embodiment of the present invention, in order to facilitate the assembly and disassembly between the barrel base 1 and the cover body 7, the barrel base 1 has a rectangular cross section, and the cover body 7 includes a horizontal plate disposed along a horizontal direction and vertical plates fixed to both ends of the horizontal plate.
In a preferred embodiment of the present invention, in order to facilitate the installation and the detachment of the auxiliary suction pipe and the cover body, a through threaded hole 15 is formed in the vertical plate, the auxiliary suction pipe includes a first connection pipe 18, a corrugated hose 19 and a second connection pipe 20 which are sequentially communicated, the first connection pipe 18 is communicated with the main suction pipe 17, one end of the second connection pipe 20 is provided with a threaded structure 21, and the threaded structure 21 is at least partially twisted in the through threaded hole 15, so that the auxiliary suction pipe can be communicated with the sealed cavity.
In a preferred embodiment of the present invention, in order to make the connection between the cover bodies 7 more tight and prevent the raw material from leaking out during the extrusion process, an insertion rod 8 is fixed to one end surface of the cover body 7 in the horizontal direction, an insertion hole 10 matching with the insertion rod 8 is provided at the other end surface, and a plurality of cover bodies 7 are connected to each other through the insertion rod 8 and the insertion hole 10.
In a preferred embodiment of the present invention, in order to facilitate the effective and fixed connection between the covering body 7 and the extruding cylinder base 1, a limit covering body 4 is fixed at one end of the extruding cylinder base 1, a second insertion hole 6 is provided at an end surface of the limit covering body 4, and an insertion rod 8 of the covering body 7 close to the limit covering body 4 is inserted into the second insertion hole 6.
In a preferred embodiment of the present invention, in order to facilitate installation of the feeding device, a feeding pipe 5 communicating with the closed cavity is fixed on the limit cover body 4.
In a preferred embodiment of the present invention, in order to facilitate assembly and fixing of the cover body 7, a sliding groove 2 is provided along the longitudinal direction of the extrusion cylinder base 1 on the upper end surface of the extrusion cylinder base 1, and a tab 11 is fixed to the lower end of the vertical plate of the cover body 7, and the tab 11 is inserted into the sliding groove 2. When the cover bodies 7 are installed, the inserting pieces 11 are inserted into the sliding grooves 2, and then the cover bodies 7 are slid left and right, so that the cover bodies 7 are fixedly connected with each other.
In a preferred embodiment of the present invention, in order to make the connection between two cover bodies 7 more tight, a transverse plate of the cover body 7 is provided with a locking screw hole 9, two cover bodies 7 are locked together by a locking member 12, two ends of the locking member 12 are respectively fixed on two adjacent cover bodies 7 by screws 13, and the screws 13 are at least partially twisted in the locking screw holes 9.
In a preferred embodiment of the present invention, in order to facilitate the rotation of the internal transfer screw 14, a through hole 3 is provided at one end of the barrel base 1, which is away from the stopper cover 4, a bearing is fixed in the through hole 3, and one end of the transfer screw 14 is rotatably provided in the bearing.
In a preferred embodiment of the invention, in order to make the connection between the two cover bodies 7 tighter, a spring is fixed in the receptacle 10.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The rubber extrusion device is characterized by comprising an extrusion cylinder base (1), wherein the upper end of the extrusion cylinder base (1) is downwards sunken to form a groove cavity, a plurality of cover bodies (7) are detachably arranged at the upper end of the extrusion cylinder base (1), the cover bodies (7) are sequentially arranged along the length direction of the extrusion cylinder base (1), the cover bodies (7) and the extrusion cylinder (1) are mutually enclosed to form an extrusion cylinder with a closed cavity, and a transmission screw (14) is rotatably arranged in the extrusion cylinder;
the outer side wall of the extrusion barrel base (1) is further fixed with an air pump (16), the air pump (16) is communicated with a main air pumping pipe (17), one end of an auxiliary air pumping pipe is communicated with the main air pumping pipe (17), and the other end of the auxiliary air pumping pipe is detachably arranged on the cover body (7).
2. The rubber extrusion device according to claim 1, wherein the cross section of the extrusion cylinder base (1) is a rectangular structure, and the cover body (7) comprises a horizontal plate arranged along the horizontal direction and vertical plates fixed at two ends of the horizontal plate.
3. The rubber extrusion device according to claim 2, wherein a through threaded hole (15) is provided on the riser, the secondary suction pipe comprises a first connecting pipe (18), a corrugated hose (19) and a second connecting pipe (20) which are communicated in sequence, the first connecting pipe (18) is communicated with the main suction pipe (17), one end of the second connecting pipe (20) is provided with a threaded structure (21), and the threaded structure (21) is at least partially twisted in the through threaded hole (15) so that the secondary suction pipe can be communicated with the closed cavity.
4. A rubber extrusion device according to claim 2, wherein an insertion rod (8) is fixed to one end surface of the cover body (7) and is arranged along the horizontal direction, an insertion hole (10) matched with the insertion rod (8) is arranged on the other end surface, and a plurality of cover bodies (7) are connected with each other through the insertion rod (8) and the insertion hole (10).
5. The rubber extrusion device according to claim 4, wherein a limit cover body (4) is fixed at one end of the extrusion cylinder base (1), a second insertion hole (6) is formed in the end face of the limit cover body (4), and an insertion rod (8) of the cover body (7) close to the limit cover body (4) is inserted into the second insertion hole (6).
6. The rubber extrusion device according to claim 5, wherein a feeding pipe (5) communicated with the closed cavity is fixed on the limit cover body (4).
7. A rubber extrusion device according to claim 6, wherein the upper end face of the extrusion cylinder base (1) is provided with a sliding groove (2) along the length direction of the extrusion cylinder base (1), the lower end of the vertical plate of the cover body (7) is fixed with an inserting sheet (11), and the inserting sheet (11) is inserted into the sliding groove (2).
8. The rubber extrusion device according to claim 7, wherein a transverse plate of the cover bodies (7) is provided with a locking screw hole (9), two cover bodies (7) are locked with each other through a locking member (12), two ends of the locking member (12) are respectively fixed on two adjacent cover bodies (7) through screws (13), and the screws (13) are at least partially twisted in the locking screw holes (9).
9. The rubber extrusion device according to claim 8, wherein a through hole (3) is formed in one end of the extrusion cylinder base (1) far away from the limit cover body (4), a bearing is fixed in the through hole (3), and one end of the transmission screw (14) is rotatably arranged in the bearing.
10. A rubber extrusion device according to claim 9, wherein a spring is fixed in the insertion hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911093944.7A CN110774566A (en) | 2019-11-11 | 2019-11-11 | Rubber extrusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911093944.7A CN110774566A (en) | 2019-11-11 | 2019-11-11 | Rubber extrusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110774566A true CN110774566A (en) | 2020-02-11 |
Family
ID=69391019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911093944.7A Pending CN110774566A (en) | 2019-11-11 | 2019-11-11 | Rubber extrusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110774566A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975449A (en) * | 1997-05-19 | 1999-11-02 | Geyer; Paul | Extrusion micro-mixing |
| US6294212B1 (en) * | 1999-09-20 | 2001-09-25 | Wenger Manufacturing Inc. | Method and apparatus for the production of high viscosity paste products with added components |
| KR100877595B1 (en) * | 2007-08-03 | 2009-01-08 | 호경테크 (주) | Separable pressing out device of barrels |
| CN202727317U (en) * | 2012-06-25 | 2013-02-13 | 江苏宏益生化科技有限公司 | Degradable plastic double-screw extruder |
| CN107498823A (en) * | 2017-07-27 | 2017-12-22 | 南京达力特挤出机械有限公司 | Building block system banburying extruder |
| CN207105573U (en) * | 2017-08-16 | 2018-03-16 | 成都米特瑞新材料科技有限公司 | Provided with heater screw machine extrusion device |
| CN208101005U (en) * | 2018-02-05 | 2018-11-16 | 厦门塑时代新材料有限公司 | A kind of double-screw plastic extrusion machine pressurizing unit |
-
2019
- 2019-11-11 CN CN201911093944.7A patent/CN110774566A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5975449A (en) * | 1997-05-19 | 1999-11-02 | Geyer; Paul | Extrusion micro-mixing |
| US6294212B1 (en) * | 1999-09-20 | 2001-09-25 | Wenger Manufacturing Inc. | Method and apparatus for the production of high viscosity paste products with added components |
| KR100877595B1 (en) * | 2007-08-03 | 2009-01-08 | 호경테크 (주) | Separable pressing out device of barrels |
| CN202727317U (en) * | 2012-06-25 | 2013-02-13 | 江苏宏益生化科技有限公司 | Degradable plastic double-screw extruder |
| CN107498823A (en) * | 2017-07-27 | 2017-12-22 | 南京达力特挤出机械有限公司 | Building block system banburying extruder |
| CN207105573U (en) * | 2017-08-16 | 2018-03-16 | 成都米特瑞新材料科技有限公司 | Provided with heater screw machine extrusion device |
| CN208101005U (en) * | 2018-02-05 | 2018-11-16 | 厦门塑时代新材料有限公司 | A kind of double-screw plastic extrusion machine pressurizing unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200211 |
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| RJ01 | Rejection of invention patent application after publication |