CN103171118A - Sectioned gap-adjustable extruder lead screw - Google Patents
Sectioned gap-adjustable extruder lead screw Download PDFInfo
- Publication number
- CN103171118A CN103171118A CN2013101291029A CN201310129102A CN103171118A CN 103171118 A CN103171118 A CN 103171118A CN 2013101291029 A CN2013101291029 A CN 2013101291029A CN 201310129102 A CN201310129102 A CN 201310129102A CN 103171118 A CN103171118 A CN 103171118A
- Authority
- CN
- China
- Prior art keywords
- adjusting
- lead screw
- screw
- screw rod
- taper
- 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
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
- B29C48/505—Screws
- B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
-
- 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
- B29C48/64—Screws with two or more threads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a sectioned gap-adjustable extruder lead screw capable of adjusting an abrasion gap. A spiral drum comprises a connecting flange, a feeding hole, an adjusting fixed flange, an adjusting lead screw, an adjusting movable flange, an adjusting taper sleeve and a die head connecting part; the lead screw comprises a lead screw taper part, a lead screw straight part and a transmission shaft; the lead screw taper part is connected in the adjusting taper sleeve, the lead screw straight part is connected in the spiral drum at a feeding hole section; the adjusting lead screw is connected with the adjusting movable flange and the adjusting fixed flange; when the transmission shaft rotates, the friction exists between the lead screw taper part and the adjusting taper sleeve to cause the abrasion gap, the adjusting lead screw is rotated to drive the adjusting movable flange and the adjusting taper sleeve synchronously axially move, the abrasion between the adjusting taper sleeve and the lead screw taper part is eliminated, and the output pressure is restored; and an adjusting space is reserved for adjusting the abrasion gap for multiple times. The axle center of the lead screw taper part is stabilized and then the abrasion of the lead screw straight part is lightened, the purposes of adjusting the abrasion gap and controlling the abrasion part are realized under the conditions that the adjusting taper sleeve is capable of axially moving and the lead screw taper part can be used for stabilizing the axle center of the output end of the lead screw, and the stability of the output pressure is ensured for a long time.
Description
Belong to technical field:
The present invention relates to a kind of extruder screw, be used in the material extrusion equipment that various outputs have the pressure requirement; Be specially adapted to use on regeneration pelletizer for worn-out plastic.
Background technology:
The extruder screw that uses at present is divided into two large classes, a cylindrical screw rod of class, a unitary tapered screw rod of class; Under the normal use of all screw rods, wearing and tearing are arranged, the major technique that solves at present wear problem is strengthening surface hardness, improves anti-wear performance.But wearing and tearing are inevitably, and screw rod use occasion, method, structure are different, and abrasion condition and position also are not quite similar; The major function of screw rod is carried exactly and boosts, and charging aperture pressure and wearing and tearing are minimum, and discharging opening pressure and wearing and tearing are maximum, distribute in echelon; Cylindrical screw rod, unitary tapered screw rod can not be adjusted the concentrated wear gap and determine the abrading section, and the wearing and tearing of finally all can only leaving cause the gap and cause output pressure constantly to descend, only scrap to screw rod.
Summary of the invention:
Can not effectively eliminate and the uncontrollable problem in abrading section because of the wearing clearance that wearing and tearing produce for solving screw rod and barrel, the invention provides the adjustable extruder screw of a kind of overlap span, this screw rod not only can be regulated wearing clearance at any time can also make even wearing be distributed in appointed part; Solve the drawback that present extruder screw can't be eliminated the screw rod wearing clearance and determine the abrading section.
The technical scheme that technical solution problem of the present invention adopts is: regulate tapered sleeve, adjusting screw(rod), regulation moving and send out orchid, regulate Ding Falan, connect and send out an orchid and be linked in sequence on box body of speed reducer, power transmission shaft is connected in the speed reducer output shaft cover.Friction initiation wearing clearance occurs with the adjusting tapered sleeve in the screw rod tapering when power transmission shaft rotates, when wearing clearance greatly when affecting output pressure, be rotatably connected to the adjusting screw(rod) of regulating on Ding Falan, driving regulation moving sends out orchid, regulates the tapered sleeve synchronizing shaft to movement, eliminate to regulate the wearing clearance in tapered sleeve and screw rod tapering, recover output pressure, the space is regulated in reservation can be for repeatedly regulating wearing clearance.In power transmission shaft when rotation,, the screw rod impact that is stressed produces skew, whole screw rod tapering and regulate the tapered sleeve endoporus and contact simultaneously and make the even wearing distribution, and screw rod straight section is stablized to wear and tear behind the axle center by the screw rod tapering and alleviates, and former follow-up abrading section is transferred to the screw rod tapering.Be issued to the controllable purpose of wearing clearance capable of regulating and abrading section regulating the situation that tapered sleeve can move axially with stabilize screw output axle center, screw rod tapering.
The invention has the beneficial effects as follows, the gap that produces because of wearing and tearing under the normal operating position of screw rod can be adjusted to optimum state, simultaneously follow-up abrading section can be transferred to the capable of regulating section, the former wearing clearance that as far as possible alleviates is become present active adjustment wearing clearance and controls the abrading section, significantly improve screw rod service life in conjunction with adjustment repeatedly.
Description of drawings:
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is complete cutaway view of the present invention.
In figure, 1. power transmission shafts 2. connect to send out blue 3. feed hopper 4. screw rod straight sections 5. and regulate and surely send out 6. regulation movings blue and send out blue 7. adjusting screw(rod)s 8. and reserve and regulate space 9. screw rod tapering 10. adjusting tapered sleeve 11. die head junction 12. discharging openings.
The specific embodiment
In Fig. 1, connection is sent out orchid 2, charging aperture 3, regulated fixed blue 5 is an integral body, is connected on power output speed reducer casing; That regulation moving is sent out is blue 6, regulate tapered sleeve 10, die head junction 11 is that an integral body is being regulated fixed sending out on blue 5 by adjusting screw(rod) 7 physical connections; Can drive when adjusting screw(rod) 7 rotation regulation moving send out blue 6, regulate tapered sleeve 10, die head junction 11 and synchronously move axially, eliminate the wearing clearance of regulating between tapered sleeve 10 and screw rod tapering 9.
In Fig. 1, the straight section 4 of power transmission shaft 1, screw rod, screw rod tapering 9 is abnormally-structured extruder screws of an integral body, power transmission shaft 1 is connected in braking maneuver power output shaft cover and synchronous rotary, and the helicla flute rotation that is entered by charging aperture 3 when raw material behind extruding machine barrel inside by screw rod straight section 4, screw rod tapering 9 is delivered to discharging opening 12; The external die head that is connected to die head junction 11 can make discharging opening 12 produce pressure and pass to whole extruder screw, and screw rod tapering 9 skew occurs in output pressure and regulates tapered sleeve 10 and occur rub and cause wearing and tearing; Without the axle center anchor point, whole screw rod side-play amount is x-ray angle amplifies take power transmission shaft 1 as initial point due to screw rod tapering 9, and screw rod tapering 9 wearing and tearing are the most severe; After adjusting tapered sleeve 10 in time moves axially the screw rod side-play amount of eliminating in wearing clearance, avoided the continuation wearing and tearing of the straight section 4 of screw rod, realized the purpose that the abrading section can be controlled.
Claims (6)
1. adjustable extruder screw of overlap span, charging aperture, discharging opening, barrel, adpting flange physical connection, screw coaxial is felt at ease and is contained in barrel, it is characterized in that: connect to send out orchid, charging aperture, adjusting Ding Falan, adjusting screw(rod), regulation moving and send out orchid, adjusting tapered sleeve, die head junction physical connection; The straight section of screw rod tapering, screw rod, power transmission shaft form extrusion screw rod; The screw rod tapering is connected to be regulated in tapered sleeve, and screw rod straight section is connected in charging aperture section barrel; Adjusting screw(rod) connects regulation moving and sends out blue and regulate Ding Falan.
2. the adjustable extruder screw of overlap span according to claim 1 is characterized in that: screw rod tapering, screw rod straight section, power transmission shaft form screw rod.
3. the adjustable extruder screw of overlap span according to claim 1 is characterized in that: connect send out that orchid, charging aperture, adjusting Ding Falan, adjusting screw(rod), regulation moving send out orchid, regulate tapered sleeve, die head junction composition barrel.
4. the adjustable extruder screw of overlap span according to claim 1 is characterized in that: the screw rod tapering is connected to be regulated in tapered sleeve.
5. the adjustable extruder screw of overlap span according to claim 1 is characterized in that: adjusting screw(rod) is connected to regulation moving and sends out orchid, regulates on Ding Falan.
6. the adjustable extruder screw of overlap span according to claim 1 is characterized in that: regulating tapered sleeve and be can axially movable taper hole sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101291029A CN103171118A (en) | 2013-04-15 | 2013-04-15 | Sectioned gap-adjustable extruder lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101291029A CN103171118A (en) | 2013-04-15 | 2013-04-15 | Sectioned gap-adjustable extruder lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103171118A true CN103171118A (en) | 2013-06-26 |
Family
ID=48631523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101291029A Pending CN103171118A (en) | 2013-04-15 | 2013-04-15 | Sectioned gap-adjustable extruder lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103171118A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308566A (en) * | 2022-03-17 | 2022-04-12 | 江苏高凯精密流体技术股份有限公司 | A spiral material feeding unit in variable clearance for carrying granule glue |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647793A (en) * | 1992-07-29 | 1994-02-22 | Sekisui Chem Co Ltd | Extruder |
| CN102303400A (en) * | 2011-09-21 | 2012-01-04 | 武汉工程大学 | Method and equipment for forming high polymer bar by single screw extruder barrel |
-
2013
- 2013-04-15 CN CN2013101291029A patent/CN103171118A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0647793A (en) * | 1992-07-29 | 1994-02-22 | Sekisui Chem Co Ltd | Extruder |
| CN102303400A (en) * | 2011-09-21 | 2012-01-04 | 武汉工程大学 | Method and equipment for forming high polymer bar by single screw extruder barrel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114308566A (en) * | 2022-03-17 | 2022-04-12 | 江苏高凯精密流体技术股份有限公司 | A spiral material feeding unit in variable clearance for carrying granule glue |
| CN114308566B (en) * | 2022-03-17 | 2022-05-31 | 江苏高凯精密流体技术股份有限公司 | A spiral material feeding unit in variable clearance for carrying granule glue |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204917289U (en) | Feeder of feed bin discharge gate | |
| CN103878984B (en) | A kind of large-scale 3D printer extrude ejecting device | |
| CN204352937U (en) | A kind of slag mill | |
| JPS6241854B2 (en) | ||
| CN206336736U (en) | A kind of turnover plate type four-way switches funnel | |
| CN102765145A (en) | Granulating device | |
| CN103171118A (en) | Sectioned gap-adjustable extruder lead screw | |
| CN203650149U (en) | Centerless grinding machine | |
| CN103721634A (en) | Dual-mode quick granulating machine | |
| CN203624404U (en) | Uniform-distribution vibrating feeder | |
| CN204384493U (en) | A kind of charging mechanism of dry powders and comprise its core making device | |
| CN201871360U (en) | Grinding and bulking machine | |
| CN204310591U (en) | A kind of novel rewinding machine | |
| CN102019716B (en) | Stably feeding device for ball press machine and method of ball forming | |
| CN202983761U (en) | Rapeseed crushing machine | |
| KR20150093742A (en) | Roll-type press | |
| CN104555482B (en) | The charging mechanism of a kind of dry powders and include its core making device | |
| CN201385963Y (en) | Feeding mechanism with press wheel | |
| CN103753837A (en) | Single-screw squeezing dewaterer | |
| CN204249320U (en) | Extruder | |
| CN203901727U (en) | Extrusion spraying head device for large-scale 3D printer | |
| CN201079742Y (en) | Pre-grinding roll squeezer | |
| CN208199825U (en) | A kind of conical double ribbon rotation conveying batcher | |
| CN201006449Y (en) | Material guide device for horizontal roll mill | |
| EP2558257B1 (en) | Method and apparatus for feeding and compacting concrete and a feeding screw |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130626 |