CN103831965A - Method and device for adjusting pressure of exhaust type screw extruder - Google Patents
Method and device for adjusting pressure of exhaust type screw extruder Download PDFInfo
- Publication number
- CN103831965A CN103831965A CN201410116998.1A CN201410116998A CN103831965A CN 103831965 A CN103831965 A CN 103831965A CN 201410116998 A CN201410116998 A CN 201410116998A CN 103831965 A CN103831965 A CN 103831965A
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- China
- Prior art keywords
- hole
- porous disc
- connector
- screw extruder
- slide block
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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
- 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
- B29C48/505—Screws
- B29C48/535—Screws with thread pitch varying along the longitudinal axis
-
- 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
- B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
-
- 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
- B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
- B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
-
- 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
- B29C48/505—Screws
- B29C48/52—Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
-
- 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
- B29C48/92—Measuring, controlling or regulating
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92019—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/924—Barrel or housing
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Abstract
The invention discloses a method and a device for adjusting pressure of an exhaust type screw extruder. The device comprises a left multi-hole plate, a right multi-hole plate, a left connection piece, a right connection piece, a left jacking-opening bolt, a right jacking-opening bolt, a connection rod and a hole-containing sliding block, wherein the whole device is close to the front end of an exhaust hole; the left multi-hole plate and the right multi-hole plate are two multi-hole plates which are capable of rotating oppositely; the right multi-hole plate is a stator; the left multi-hole plate is a rotor; the rotor is controlled by the hole-containing sliding block due to connection through a connection rod; the connection pieces are used for defining positions of parts; the ejecting-opening bolts are used for fixing the moved hole-containing sliding block; stacked positions among holes of two plates change, the area of a melt channel formed among the holes changes along with the change of the stacked positions, and thus resistance of the melt channel by changing circulation areas of material flows in the flowing process changes, the power waste is avoided and the functions of adjusting the pressure in real time and controlling the flow are realized. Through the device for adjusting the pressure of the exhaust type screw extruder, the exhaust effect of the exhaust type screw extruder is relatively well improved due to the design of the multi-hole plate structure and the arrangement of the device position on the premise of effectively adjusting the pressure.
Description
Technical field
The present invention relates to a kind of polymer material molding processing technique field, be specifically related to a kind of pressure regulating method of exhaust screw extruder, also relate to the pressure-regulating device of this exhaust screw extruder simultaneously.
Background technology
In the process of polymer material molding processing, conventionally because in raw material, contain too much moisture, gas or various volatile matter as monomer, oligomer, solvent etc. need to be from melt Exhaust Gas.If there is bubble residual in goods, not only hinder outward appearance, also affect physical property and electrical property.According to the requirement to quality of item, the final air content of goods must not exceed 0.2% conventionally.In common extruder, the moisture that material is brought into and gas can overflow from charging aperture in when extruding plasticizing, or before extruding by material is carried out to predrying removing, so not only increase predrying equipment, and effect is bad, facts have proved, effective method is to use vented extruder.
The main feature of machine construction is to have exhaust outlet at machine barrel medium position.Taking exhaust outlet as boundary, screw rod is divided into two parts.Exhaust outlet front portion is called the first rank of screw rod, and its rear portion is called second-order.The first rank and second-order are respectively equivalent to a syllogic common screw.The general material being entered by hopper through Solid Conveying and Melting, melting compression and mixing homogenizing, then enters exhaust section through decompression in the first rank, and the gas of carrying secretly in melt is deviate under vacuum.After pump-down process, polymer melt enters the second-order of screw rod.In second-order, melt is through recompression with mix homogenizing and extruding from head.
For vented extruder, extruding output fluctuation and overflow problem is the key point that restriction degassing extruder uses.For effective coordinate production fluctuation and overflow problem, expand the working range of vented extruder simultaneously, we can respectively establish a pressure-regulating device in first stage Mo and a mouthful mould place, are used on vented extruder and general pressure-regulating device can not full blast.
Summary of the invention
Object of the present invention is exactly be to overcome above-mentioned shortcoming and a kind of pressure regulating method that can effectively improve exhaust screw extruder exhaust effect is provided,
Another object of the present invention is to provide a kind of pressure-regulating device that can effectively improve exhaust screw extruder exhaust effect.
A kind of exhaust screw extruder pressure regulating method of the present invention comprises the following steps:
(1) porous disc is respectively set on the junction of left and right machine barrel, wherein, left and right machine barrel is connected by pin with right connector (5) by left connector (2); Two porous discs are all connected with screw rod by sliding bearing, and between the hole on two dishes, stack runs through formation melt canal mutually;
(2) left porous disc (1) is rotor, and what connected by connecting rod (4) controls and rotate containing hole slide block (3); Right porous disc (6) is stator, is fixed in the barrel wall of right machine barrel left end; Rotate left porous disc (1), the position superposeing between the hole of itself and right porous disc (6) changes, and the melt canal area that runs through formation between hole changes thereupon, thereby changes the resistance that melt passes through, avoid power dissipation, reached the object that regulates pressure.
A kind of exhaust screw extruder pressure-regulating device of the present invention, it is characterized in that, comprise left porous disc (1), right porous disc (6), left connector (2), right connector (5), connecting rod (4), containing hole slide block (3), bolt (7) is opened on left top, and bolt (8) is opened on right top.
Above-mentioned a kind of exhaust screw extruder pressure-regulating device, as shown in Figure 4, right porous disc (6) as shown in Figure 5 for left porous disc (1).Wherein in left porous disc (1), be evenly distributed 32 oval-shaped holes, each hole surface all does withdrawing pattern processing slightly, makes it have certain gradient; In right porous disc (6), divide equally and have 32 dovetail grooves, the length of dovetail groove and center width and oval major semiaxis and semi-minor axis length match, thereby ensure can just in time hold 1 elliptical aperture in 1 dovetail groove; Distance between two adjacent dovetail groove center lines is also greater than oval semi-minor axis; On left porous disc (1), have three screwed holes, so that corresponding connecting rod (4) to be installed, the groove that connecting rod (4) is opened by barrel surface, through place in groove containing hole slide block (3).
Described connecting rod (4) selects the reason of three to be: ensure that connecting rod has enough rigidity to drive left porous disc (1) to rotate.
Above-mentioned a kind of exhaust screw extruder pressure-regulating device, wherein has three holes containing the upper correspondence position of hole slide block (3), and respectively corresponding three connecting rods (4), as Fig. 3, be placed between left machine barrel outer surface and the groove hole of left connector (2) containing hole slide block (3), its axial length requires: need to agree with mutually with the axial length in the groove hole of left connector (2), radical length requires: the angle between the groove hole inner lower angle of the straight line that the slide block left end lower left corner and the porous disc center of circle are linked to be and adjacent left connector (2) and the straight line that the center of circle is linked to be, add angle sum between the groove hole inner lower angle of straight line that the top shoe right-hand member lower right corner and the porous disc center of circle be linked to be and adjacent left connector (2) and straight line that the center of circle is linked to be and must not be less than 6 degree (be both sides, hole and the porous disc center of circle form the angle number of degrees) in right porous disc 6, can ensure that like this slide block has enough space to change the melt canal area (simultaneously meeting its maximum flow area and minimum flow area) that runs through formation between the hole of two porous discs, requirement for height: higher than left terminal pad outer surface, like this can guarantee effect power in slide block radially, thereby drivening rod rotates left porous disc (1), changes flow area.
Above-mentioned a kind of exhaust screw extruder pressure-regulating device, wherein left connector (2) as shown in Figure 2, is opened rectangular channel to place containing hole slide block (3) in left connector (2) upper end; Rectangular channel radially two ends respectively offers a screwed hole, being separately installed with left top opens bolt (7) and right top and opens bolt (8), by changing left jack bolt (7), right jack bolt (8) changes the radial position containing hole slide block (3); The profile of right connector (5) is identical with the profile of left connector (2), and different is that its upper end is solid, and also unthreaded hole of slotless; Between left connector (2) and right connector (5), be connected by six symmetrical bolts; Between left and right connector and machine barrel by being welded to connect.
Brief description of the drawings
Fig. 1 is the lateral view of a kind of structure of the present invention.
Fig. 2 is that in the present invention, Fig. 1 removes the A-A cross-sectional view after screw rod and porous disc.
Fig. 3 is the left connector of the present invention, the top view of right connecting-piece structure.
Fig. 4 is the axial view of left porous disc.
Fig. 5 is the axial view of right porous disc.
Mark in figure: 1, left porous disc; 2, left terminal pad; 3, containing hole slide block; 4, connecting rod; 5, right connector; 6, there is porous disc; 7, Zuo Ding opens bolt; 8, You Ding opens bolt.
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Detailed description of the invention
With reference to Fig. 1, a kind of exhaust screw extruder pressure regulating method respectively arranges a porous disc on the junction of left and right machine barrel, and two porous discs are all connected with screw rod by sliding bearing, and between the hole on two dishes, stack runs through formation melt canal mutually; Wherein left porous disc 1 is rotor, and what connected by connecting rod rotates containing hole slide block control; Right porous disc 6 is stator, is fixed in the barrel wall of right machine barrel left side.Rotate left porous disc 1, the position superposeing between the hole of itself and right porous disc 6 changes, and the melt canal area that runs through formation between hole changes thereupon, thereby changes the resistance that melt passes through, and has avoided power dissipation, has reached the object of real-time adjusting pressure.
With reference to Fig. 2 and Fig. 3, a kind of exhaust screw extruder pressure-regulating device, melt flows to the process in left side from right side, act on containing the direct control link of power on hole slide block 3 to reach the control to rotor (being left porous disc 1), can adopt oil cylinder or leading screw to drive containing hole slide block 3, position is opened bolt 7 and You Ding to open bolt 8 fixing by being connected to left top on left terminal pad 2, and the scale of its displacement i.e. circulation area in corresponding regulator structure.
With reference to Fig. 4 and Fig. 5, a kind of exhaust screw extruder pressure regulating method and device, when the elliptical aperture in left porous disc 1 turns to while overlapping completely with the rectangular channel of right porous disc 6, now regulator reaches maximum flow area; And turn to while overlapping completely with the entity in the middle of the adjacent rectangle groove of right porous disc 6 when the elliptical aperture in left porous disc 1, now regulator reaches minimum flow area (being closed state).
The material of extruding due to extruder is mainly to utilize the propelling of screw rod spiral shell rib to transmit forward by the frictional force between viscous material and machine barrel, will cause like this material being fed forward in process, between material and machine barrel, inevitably contact, vacuum extractor supply and exhaust mouth place on exhaust outlet causes very large negative pressure, and make the material of pressing close to exhaust ports on machine barrel be easy to be sucked in exhaust outlet, stop up exhaust outlet; A kind of exhaust screw extruder pressure-regulating device of the present invention, design, in the position close to from exhaust outlet, can not only be adjusted pressure, and can also effectively improve exhaust effect; Cross right porous disc 6 in material flow, while flowing through left porous disc 1, on left porous disc 1, elliptical aperture area is processed and was diminished gradually because doing withdrawing pattern, and the bubble comprising in the very thin sheet material of extruding by the flat hole of ellipse can the explosion due to inside and outside pressure reduction, thereby has well realized exhaust effect; One group of laminar material of radial arrangement has certain pace, is easy to cross the exhaust outlet that is close to porous disc and establish, and has avoided stopping up the exhaust outlet that vacuumizes state in negative pressure.
Claims (2)
1. an exhaust screw extruder pressure regulating method comprises the following steps:
(1) porous disc is respectively set on the junction of left and right machine barrel, wherein, left and right machine barrel is connected by pin with right connector (5) by left connector (2); Two porous discs are all connected with screw rod by sliding bearing, and between the hole on two dishes, stack runs through formation melt canal mutually;
(2) left porous disc (1) is rotor, and what connected by connecting rod (4) controls and rotate containing hole slide block (3); Right porous disc (6) is stator, is fixed in the barrel wall of right machine barrel left end; Rotate left porous disc (1), the position superposeing between the hole of itself and right porous disc (6) changes, and the melt canal area that runs through formation between hole changes thereupon, thereby changes the resistance that melt passes through, avoid power dissipation, reached the object that regulates pressure.
2. an exhaust screw extruder pressure-regulating device, it is characterized in that, comprise left porous disc (1), right porous disc (6), left connector (2), right connector (5), connecting rod (4), containing hole slide block (3), bolt (7) is opened on left top, and bolt (8) is opened on right top.
Described left porous disc (1) is connected with screw rod by sliding bearing, its circumferential surface has 3 screwed holes, so that corresponding connecting rod (4) to be installed, the groove that connecting rod (4) is opened by barrel surface, can through place in groove containing hole slide block (3), left porous disc (1) axial surface is being evenly distributed 32 oval-shaped holes, and each hole surface all does withdrawing pattern processing slightly.
Described right porous disc (6) is connected with screw rod by sliding bearing, and circumferential surface and right machine barrel left end are fixedly connected, and its axial surface is being evenly distributed 32 dovetail grooves.
Between described left connector (2) and right connector (5), connect by pin, left connector has rectangular channel on (2), rectangular channel radially two ends respectively offers a screwed hole, right connector (5) upper end is solid, slotless is unthreaded hole also, between left connector (2) and right connector (5) and left and right machine barrel all by being welded to connect.
Described connecting rod (4) is made up of jointly 3 suitable metallic rod of length.
The described hole slide block (3) that contains is placed between left machine barrel outer surface and the groove hole of left connector (2), its axial length need to agree with mutually with the axial length in the groove hole of left connector (2), angle between the groove hole inner lower angle of the straight line that the radical length requirement slide block left end lower left corner and the porous disc center of circle are linked to be and adjacent left connector (2) and the straight line that the center of circle is linked to be, add angle sum between the groove hole inner lower angle of straight line that the top shoe right-hand member lower right corner and the porous disc center of circle be linked to be and adjacent left connector (2) and straight line that the center of circle is linked to be and must not be less than 6 degree (be both sides, hole and the porous disc center of circle form the angle number of degrees) in right porous disc 6, height will be higher than left terminal pad outer surface.
On two screwed holes in the rectangular channel of left connector (2), being separately installed with left top opens bolt (7) and right top and opens bolt (8), the fixing position containing hole slide block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116998.1A CN103831965A (en) | 2014-03-27 | 2014-03-27 | Method and device for adjusting pressure of exhaust type screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410116998.1A CN103831965A (en) | 2014-03-27 | 2014-03-27 | Method and device for adjusting pressure of exhaust type screw extruder |
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| Publication Number | Publication Date |
|---|---|
| CN103831965A true CN103831965A (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410116998.1A Pending CN103831965A (en) | 2014-03-27 | 2014-03-27 | Method and device for adjusting pressure of exhaust type screw extruder |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191589A (en) * | 2014-08-20 | 2014-12-10 | 南京杰恩特机电有限公司 | Gate valve cylinder structure of extruder with two parallel screw rods in same directions |
| CN104908291A (en) * | 2015-06-24 | 2015-09-16 | 常州博美新材料科技有限公司 | Single-screw exhausting porous disc |
| CN106426861A (en) * | 2016-12-08 | 2017-02-22 | 北京工商大学 | Pressure automatically adjustable multipurpose extruding machine mould head |
| CN107442315A (en) * | 2016-05-31 | 2017-12-08 | 塔工程有限公司 | Viscous liquid device for transferring |
| CN113650259A (en) * | 2021-09-01 | 2021-11-16 | 江苏瑞泽丰标准技术服务有限公司 | Adjustable exhaust cover plate for double-screw extruder |
| CN114750394A (en) * | 2022-04-30 | 2022-07-15 | 汕头市达诚环保精机科技有限公司 | Detection and processing method for vacuum material overflow phenomenon of extruder |
| CN116373255A (en) * | 2023-06-05 | 2023-07-04 | 四川众鑫盛农牧机械有限公司 | Pressure regulating valve group for screw extrusion mechanism and pressure regulating valve thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611489A (en) * | 1969-05-06 | 1971-10-12 | Vladimir Ivanovich Morozov | Disk extruder for processing plastics |
| CN2097084U (en) * | 1991-07-08 | 1992-02-26 | 陈瑞全 | T-mould to form by automatic pressing |
| CN101837633A (en) * | 2010-03-31 | 2010-09-22 | 广东轻工职业技术学院 | Embedded planetary-screw pulsation plasticizing exhaust extruder and method |
| CN101913243A (en) * | 2010-09-06 | 2010-12-15 | 无锡市江南橡塑机械有限公司 | Venting extruder |
| CN102886888A (en) * | 2012-10-23 | 2013-01-23 | 金世源 | Internal exhaust type parallel counter-rotating multi-screw extruder |
-
2014
- 2014-03-27 CN CN201410116998.1A patent/CN103831965A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611489A (en) * | 1969-05-06 | 1971-10-12 | Vladimir Ivanovich Morozov | Disk extruder for processing plastics |
| CN2097084U (en) * | 1991-07-08 | 1992-02-26 | 陈瑞全 | T-mould to form by automatic pressing |
| CN101837633A (en) * | 2010-03-31 | 2010-09-22 | 广东轻工职业技术学院 | Embedded planetary-screw pulsation plasticizing exhaust extruder and method |
| CN101913243A (en) * | 2010-09-06 | 2010-12-15 | 无锡市江南橡塑机械有限公司 | Venting extruder |
| CN102886888A (en) * | 2012-10-23 | 2013-01-23 | 金世源 | Internal exhaust type parallel counter-rotating multi-screw extruder |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191589A (en) * | 2014-08-20 | 2014-12-10 | 南京杰恩特机电有限公司 | Gate valve cylinder structure of extruder with two parallel screw rods in same directions |
| CN104908291A (en) * | 2015-06-24 | 2015-09-16 | 常州博美新材料科技有限公司 | Single-screw exhausting porous disc |
| CN107442315A (en) * | 2016-05-31 | 2017-12-08 | 塔工程有限公司 | Viscous liquid device for transferring |
| CN106426861A (en) * | 2016-12-08 | 2017-02-22 | 北京工商大学 | Pressure automatically adjustable multipurpose extruding machine mould head |
| CN106426861B (en) * | 2016-12-08 | 2018-11-23 | 北京工商大学 | It is a kind of can automatic Regulation multipurpose extruder die head |
| CN113650259A (en) * | 2021-09-01 | 2021-11-16 | 江苏瑞泽丰标准技术服务有限公司 | Adjustable exhaust cover plate for double-screw extruder |
| CN114750394A (en) * | 2022-04-30 | 2022-07-15 | 汕头市达诚环保精机科技有限公司 | Detection and processing method for vacuum material overflow phenomenon of extruder |
| CN116373255A (en) * | 2023-06-05 | 2023-07-04 | 四川众鑫盛农牧机械有限公司 | Pressure regulating valve group for screw extrusion mechanism and pressure regulating valve thereof |
| CN116373255B (en) * | 2023-06-05 | 2023-08-25 | 四川众鑫盛农牧机械有限公司 | Pressure regulating valve group for screw extrusion mechanism and pressure regulating valve thereof |
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Application publication date: 20140604 |