CN2900141Y - Four screw blade reciprocating screw mixing device - Google Patents
Four screw blade reciprocating screw mixing device Download PDFInfo
- Publication number
- CN2900141Y CN2900141Y CN 200620103402 CN200620103402U CN2900141Y CN 2900141 Y CN2900141 Y CN 2900141Y CN 200620103402 CN200620103402 CN 200620103402 CN 200620103402 U CN200620103402 U CN 200620103402U CN 2900141 Y CN2900141 Y CN 2900141Y
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- sea whelk
- screw
- screw rod
- sea
- pin
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The utility model relates to an extruding and forming equipment, in particular to a four-screw piece to-and-fro screw stem mixing device, which comprises a screw stem, a machine cylinder, a pin and a feed port positioned on the machine cylinder. A setting ring is positioned next to the tail end on the screw stem; a plurality of screw sleeves are bushed to the screw stem via a key and a key way; a lock cap is positioned at the head of the screw stem; the screw sleeve is composed of n pitch; four screw pieces are arranged along the screw line in one pitch on the screw sleeve; the screw piece is a curved surface arc body formed by the track of rotary and to-and-fro interlaced movement; the above-mentioned n refers to the integral that is equal to or more than 1. The three-dimensional sculpt with the adoption of the utility model is originated from the track of combined rotary and to-and-fro interlaced movement, so that the screw stem will have better strength and abrasion resistance performance, longer service life, little temperature rise at partial section during the mixing process, lower extruding pressure and great extruding volume.
Description
Technical field
The utility model relates to a kind of extrusion equipment, relates in particular to a kind of four sea whelk reciprocating screw kneading devices.
Background technology
" Reciprocating Pin Twin-Screw Extruder design principle " literary composition that 2002 the 16th volumes of " Chinese plastics " magazine the 1st phase 70-73 page or leaf is delivered is described in detail the structure of this extruder.Reciprocating type pin extruder mainly is made up of motor, transmission system, pressurizing unit, charging system and accessory system, and wherein the part of most critical is a pressurizing unit.Pressurizing unit is made up of machine barrel, screw rod and pin, and machine barrel is made up of perforate of many groups and closed pore cylindrical shell; Screw rod is made up of different screwing elements, and these screwing elements are building block system and are enclosed within on the mandrel, and the screw thread on it is all discontinuous, and the number of times that different screwing elements disconnects vertically is also different; Carry screw thread whenever to circle, screw thread just interrupts once; Mediate screwing element and whenever circle thread interruption three times.This " three sea whelks " structure spiral shell rib disconnects groove and becomes " one " font to arrange vertically, that is each spiral shell rib disconnects groove and interconnect, and therefore leakage current and turbulent condition can occur inevitably.
China utility model patent ZL02227607.6 discloses a kind of reciprocating screw and has extruded structure, comprise that machine barrel, screw rod, pin, screw rod are installed in the machine barrel, pin is installed in the machine barrel sleeve inner surface relative with screw rod spiral shell rib, the spiral shell rib of screw rod is provided with the disconnection groove, and the disconnection groove of front and back screw rod staggers mutually.Though the screw rod of inferior kind of structure has reduced the leakage current amount, because the external diameter of the outer spiral shell rib of screw rod is cylindrical, screw rod is identical with barrel diameter, and compression ratio and volumetric ratio are all smaller, and the choked flow phenomenon takes place material easily when extruding, and causes mobile decline, and conveying capacity reduces.
In order to overcome the existing defective of Chinese utility model patent ZL02227607.6, China utility model patent ZL200520002524.0 discloses four-piece reciprocating pin scewrod extruder, the spiral shell rib of the extruding zone of its screw rod and mixer periodically is divided into four sea whelks and is staggered along the circumference lead angle, the moulding of this sea whelk directly depends on the diameter and the pitch of swivel nut, modification is difficult for, to the bad adaptability of material.In fact " spiral shell rib " carried out uniform four sea whelks in interval that can't obtain after " cutting apart ", promptly can't equate according to " at interval " and other three intervals between " tail " of " head " of " spiral shell rib " the 4th sea whelk that method drew of " cutting apart " and first sea whelk; " at interval poor " and pitch variation in direct ratio between the formed sea whelk of this " cutting apart " method.The movement locus of the reciprocating screw of four screw plate structures needs to scan the side of four pins in a work period, reciprocating track distance of sea whelk and pitch thereof all can increase than three sea whelks, and therefore " sea whelk is poor at interval " must strengthen.Because " cutting apart " method exists above two structural defects, it is more to make the spiral shell rib " cut apart " screw rod and " dead angle " between pin and the machine barrel that method produced, " self-cleaning " is relatively poor, especially in the processing of special materials such as thermal sensitivity plastics, thermosetting powder coating, be difficult to bring into play fully the unique advantage of " being uniformly dispersed " and " self-cleaning is good ", make reciprocating screw be difficult to use and promote.
Summary of the invention
In order to address the above problem, the purpose of this utility model provide a kind of novel structure, assembling flexibly, dispersiveness and self-cleaning is better, the scope of application is more extensive, more economical four sea whelk reciprocating screw kneading devices.
To achieve the above object, the utility model is mainly solved by following technical proposals:
A kind of four sea whelk reciprocating screw kneading devices, comprise screw rod, machine barrel and pin, with the charging aperture that is located on the machine barrel, be provided with ring near on the tail end on the screw rod, on screw rod, be socketed with several swivel nuts, swivel nut and screw rod socket-connect by key and keyway, the head of screw rod is provided with lock nut, described swivel nut comprises n pitch, in the pitch on swivel nut along helical four sea whelks that distributing, described sea whelk is the formed curved surface arc body of track of holding concurrently reciprocal superimposed motion by rotation, and described n is the integer more than or equal to.
As preferably, the sea whelk on the described swivel nut contains 1-2 long sea whelk when helical distributes, and long sea whelk is formed by connecting by 2-4 adjacent sea whelk, and the lift angle direction of the helical of sea whelk distribution is identical with the hand of spiral of screw rod.
As preferably, sea whelk on the described swivel nut contains 1-2 long sea whelk when helical distributes, long sea whelk is formed by connecting by 2-4 adjacent sea whelk, wherein have the lift angle direction of the helical that 1-2 sea whelk distribute opposite with the helical of screw rod, the helical lift angle direction of all the other sea whelks distributions is identical with the hand of spiral of screw rod.
As preferably, be fixed with lining tile by pin on the described machine tube inner wall, pin, lining tile and charging aperture are corresponding with the interval between the sea whelk along the layout of machine barrel.
As preferably, described pin one end is provided with boss, is being provided with the shaft shoulder near on the position of boss on the pin, and the other end lateral surface of pin is provided with screw thread, and end face is provided with interior hexagonal.
As preferably, described machine barrel is made up of some splice sections, and each splice sections is an opposite opened.
As preferably, be provided with heat-exchange system in the described machine barrel, described heat-exchange system is made up of several radial holes and axial hole, and the axis of radial hole and the axis of axial hole are 90 ° of angles.
As preferably, described ring is the circular of protrusion.
As preferably, described ring is circular for depression.
Structure spy of the present utility model has the following advantages:
1. the three-dimensional modeling of sea whelk comes from the movement locus that has rotation concurrently and back and forth superpose, compare with the sea whelk that spiral shell rib " patterning method " produces, the sea whelk of " method of loci " moulding and the fit clearance minimum of pin and machine barrel, thus make the thickness of pin size and sea whelk reach maximization, make the intensity of screw rod better, more wear-resistant, the life-span is longer, therefore, the self-cleaning of screw rod and machine barrel is better, make the required color of material processing, the consumption of kind when changing is more saved, and cleans more convenient.
2. the three-dimensional modeling of sea whelk comes from and has the rotation and the reciprocal movement locus of stack concurrently, makes one of the key parameter " kneading angle " of reciprocating screw design be convenient to design according to the characteristic of processing materials; Help producing that to have shear rate low, shear the frequency height, the local temperature liter that produces in kneading and the mixing process is little, and extrusion pressure is low, extrude the big good characteristic of output.
3. because the moulding of sea whelk and the diameter and the pitch of screw rod do not have direct correlation, make the version of swivel nut various, combination flexibly; When more helping the design of swivel nut, screw rod, pin and machine barrel to modularization, the seriation design of key parameter; Help in production process and the Parts Inventory control main zero, the parts precision, and help carrying out intensification manufacturing, reach good economic benefit.
4. because the moulding of sea whelk and the diameter and the pitch of screw rod do not have direct correlation, the data that theory is calculated and experiment is drawn by reciprocator's movement locus, can be applied to the three-dimensional modeling of sea whelk quickly, the cost of the required time and money of the topology update of reciprocating screw is relatively saved.Help of the present utility model applying, further Speeding Up The Advancement of technology.
5. machine barrel adopts the spliced structure of multistage can strengthen the precision of machine barrel processing is controlled, and improves yield rate, shortens the manufacturing cycle, reduces the stock, improves the mobility of after-sale service.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is the utility model embodiment 2 structural representations.
Fig. 3 is the structural representation of annexation between screw rod, machine barrel and the pin.
Fig. 4 is the structural representation of mixing class swivel nut 12.
Fig. 5 is the expanded view of Fig. 4.
Fig. 6 is for carrying the structural representation of extrusion type swivel nut 11.
Fig. 7 is the expanded view of Fig. 6.
Fig. 8 is the another kind of structural representation of carrying class extruding swivel nut 11.
Fig. 9 is the expanded view of Fig. 8.
Figure 10 is for strengthening the structural representation of mediating class swivel nut 8.
Figure 11 is the expanded view of Figure 10.
Figure 12 is the schematic diagram of sea whelk 10 among Fig. 1.
Figure 13 is pin 14 structural representations.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is made a detailed explanation:
Embodiment 1:
A kind of four sea whelk reciprocating screw kneading devices comprise machine barrel 1, screw rod 7 and pin 14.Center along screw rod 7 is penetrated with cooling hole 16, is being provided with ring 6 near on the position of tail end on the screw rod 7, and ring 6 is the circular of protrusion, and there is chamfering the two sides of ring 6, are convenient to the adjusting of contact-making surface.Be socketed with several swivel nuts 9 on screw rod 7, swivel nut 9 socket-connects by key 15 and keyway 23 with screw rod 7.Key 15 can adopt singly-bound, multikey or spline, and has directionality, when a plurality of swivel nut 9 of serial connection as location and transferring power.The head of screw rod 7 is provided with lock nut 13, contains screw thread and bit-stopping structure in the lock nut 13, plays fixing the swivel nut 9 that is serially connected on the screw rod 7 and the tight effect in town.Described swivel nut 9 comprises single or multiple pitch, and the number of pitch is more than or equal to 1 integer.Swivel nut 9 adoptable cylinder or cone shapes.Along helical four sea whelks 10 that distributing, sea whelk 10 is by rotation the hold concurrently track of reciprocal superimposed motion and a curved surface arc body forming in the pitch on swivel nut 9.
Be fixed with lining tile 17 by pin 14 on the inwall of machine barrel 1, lining tile 17 is an opposite opened, between the centre of machine barrel 1 and screw rod 7; Lining tile 17 bridging mode between mutually is a plane contact, also can be dislocation contact or inclined-plane contact; The opening direction position and the shape of lining tile 17 are consistent with the opening direction of machine barrel 1.The effect of lining tile 17 is protection machine barrels 1, in case wearing and tearing the time are convenient to change.One end of above-mentioned pin 14 is provided with conical boss 22, is provided with the shaft shoulder 20 at pin 14 near on the position of boss 22, and the other end lateral surface of pin 14 is provided with screw thread, and end face is provided with interior hexagonal 21; The shaft shoulder 20 of pin 14 is embedded in the lining tile 17, and external screw thread is in the machine barrel 1, and when pin 14 was fastened on the machine barrel 1, interior hexagonal 21 played the effect of impetus.Pin 14 axial apportions become four rows, and it is spaced apart radially to press an angle of 90 degrees, becomes miter angle with horizontal line, and the passage of pin 14 is made at the interval in the middle of per two sea whelks 10.When screw rod 7 moved back and forth, pin 14 present positions were the track of the interval motion between the sea whelk 10, and pin 14 also plays the effect of stirring material, and pin 14 has adjustability and replaceability.
Also segmentation is provided with heat-exchange system in machine barrel 1, and heat-exchange system is made up of several radial holes 18 and axial hole 19, and the axis of the axis of radial hole 18 and axial hole 19 is an angle of 90 degrees, is used for the heating and cooling of machine barrel 1.
Can be divided into according to the layout of sea whelk 10 on swivel nut 9:
1, mixing class swivel nut 12: four sea whelks 10 in swivel nut 9 are evenly distributed on the swivel nut 9 along helical, and mixing class swivel nut 12 is the most frequently used function swivel nuts 9 of screw rod 7, have effects such as kneading, mixing, dispersion, mixing;
2, carry extrusion type swivel nut 11: the sea whelk 10 on the swivel nut 9 contains 1-2 long sea whelk when helical distributes, and long sea whelk is formed by connecting by 2-4 adjacent sea whelk 10, and the lift angle direction of the helical of sea whelk 10 distributions is identical with screw rod 7.Carry extrusion type swivel nut more than 11 as effects such as conveying, pushing, stirrings;
3, strengthen kneading class swivel nut 8: the sea whelk 10 on the swivel nut 9 contains 1-2 long sea whelk when helical distributes, long sea whelk is formed by connecting by 2-4 adjacent sea whelk 10, and wherein the lift angle direction of the helical of 1-2 sea whelk 10 distributions is opposite with screw rod 7.The helical lift angle direction that all the other sea whelks 10 distribute is identical with the hand of spiral of screw rod 7.
Strengthening kneading class swivel nut 8 is that swivel nut is mediated in a kind of special reinforcement, is mainly used in the material that needs to strengthen effects such as mixing and dispersion.
The layout of above-mentioned three types of swivel nuts, each is generally independent use.
Because the key 15 of screw rod 7 has directionality on circumference, stagger angle distributes and interval location is arranged and combination so the swivel nut 9 of same class shape can be carried out, and makes screw rod 7 can adapt to the processing of various various trait materials.
Machine barrel 1 of the present utility model adopts the spliced structure of multistage, promptly is made up of several splice sections, and each splice sections is an opposite opened, it mainly is the structural change that adapts to screw rod 7, simplified the processing of machine barrel 1 centre bore simultaneously, reduced cost, improved control dimensional accuracy.
The top of machine barrel 1 also is provided with three charging apertures, and near the screw rod tail end is the main charging aperture 5 of material; The auxiliary feed ports 4 in centre position; Being located at left end is exhaust outlet 2; Charging aperture can add separately according to processing needs other positions on machine barrel 1.Above-mentioned pin 14, lining tile 17 and charging aperture are corresponding with the interval between the sea whelk 10 along the layout of machine barrel 1.
Embodiment 2:
A kind of assembly type four sea whelk reciprocating screw and machine barrels, the structure of its screw rod 7 and machine barrel 1 is identical with embodiment 1 with the annexation between the pin 14, difference is, be located near the locational ring 6 that pulls out of screw rod 7 tail ends and be the circular of depression, the two sides of ring 6 are provided with interior chamfering, to adapt to different transmission requirements.
Claims (9)
1, a kind of four sea whelk reciprocating screw kneading devices, comprise screw rod (7), machine barrel (1) and pin (14), with the charging aperture (5) that is located on the machine barrel (1), upward be provided with ring (6) at screw rod (7) near on the tail end, it is characterized in that, on screw rod (7), be socketed with several swivel nuts (9), swivel nut (9) socket-connects by key (15) and keyway (23) with screw rod (7), the head of screw rod (7) is provided with lock nut (13), described swivel nut (9) comprises n pitch, in the pitch on swivel nut (9) along helical four sea whelks (10) that distributing, described sea whelk (10) is the formed curved surface arc body of track of holding concurrently reciprocal superimposed motion by rotation, and described n is the integer more than or equal to.
2, a kind of four sea whelk reciprocating screw kneading devices according to claim 1, it is characterized in that, sea whelk (10) on the described swivel nut (9) contains 1-2 long sea whelk when helical distributes, long sea whelk is formed by connecting by 2-4 adjacent sea whelk (10), and the lift angle direction of the helical of sea whelk (10) distribution is identical with the hand of spiral of screw rod (7).
3, a kind of four sea whelk reciprocating screw kneading devices according to claim 1, it is characterized in that, sea whelk (10) on the described swivel nut (9) contains 1-2 long sea whelk when helical distributes, long sea whelk is formed by connecting by 2-4 adjacent sea whelk (10), wherein have the lift angle direction of the helical that 1-2 sea whelk (10) distribute opposite with the helical of screw rod (7), the helical lift angle direction of all the other sea whelks (10) distribution is identical with the hand of spiral of screw rod (7).
4, a kind of four sea whelk reciprocating screw kneading devices according to claim 1, it is characterized in that, be fixed with lining tile (17) by pin (14) on described machine barrel (1) inwall, pin (14), lining tile (17) and charging aperture (5) are corresponding with the interval between the sea whelk (10) along the layout of machine barrel (1).
5, a kind of four sea whelk reciprocating screw kneading devices according to claim 4, it is characterized in that, described pin (14) one ends are provided with boss (22), upward be provided with the shaft shoulder (20) at pin (14) near on the position of boss (22), the other end lateral surface of pin (14) is provided with screw thread, and end face is provided with interior hexagonal (21).
6, according to claim 1 or 2 or 3 or 4 or 5 described a kind of four sea whelk reciprocating screw kneading devices, it is characterized in that described machine barrel (1) is made up of some splice sections, each splice sections is an opposite opened.
7, a kind of four sea whelk reciprocating screw kneading devices according to claim 6, it is characterized in that, described machine barrel is provided with heat-exchange system in (1), described heat-exchange system is made up of several radial holes (18) and axial hole (19), and the axis of the axis of radial hole (18) and axial hole (19) is 90 ° of angles.
8, according to claim 1 or 2 or 3 or 4 or 5 described a kind of four sea whelk reciprocating screw kneading devices, it is characterized in that described ring (6) is the circular of protrusion.
According to claim 1 or 2 or 3 or 4 or 5 described a kind of four sea whelk reciprocating screw kneading devices, it is characterized in that 9, described ring (6) is circular for depression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620103402 CN2900141Y (en) | 2006-05-01 | 2006-05-01 | Four screw blade reciprocating screw mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620103402 CN2900141Y (en) | 2006-05-01 | 2006-05-01 | Four screw blade reciprocating screw mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900141Y true CN2900141Y (en) | 2007-05-16 |
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ID=38084308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620103402 Expired - Fee Related CN2900141Y (en) | 2006-05-01 | 2006-05-01 | Four screw blade reciprocating screw mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900141Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192514A (en) * | 2013-03-29 | 2013-07-10 | 江苏德威新材料股份有限公司 | Preparation method of high-voltage semi-conduction electric screening material |
| CN105269790A (en) * | 2015-11-13 | 2016-01-27 | 北京工商大学 | Adjustable extruder screw and extruder with same |
-
2006
- 2006-05-01 CN CN 200620103402 patent/CN2900141Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192514A (en) * | 2013-03-29 | 2013-07-10 | 江苏德威新材料股份有限公司 | Preparation method of high-voltage semi-conduction electric screening material |
| CN105269790A (en) * | 2015-11-13 | 2016-01-27 | 北京工商大学 | Adjustable extruder screw and extruder with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20120501 |