CN101417497A - Mixed gear end - Google Patents
Mixed gear end Download PDFInfo
- Publication number
- CN101417497A CN101417497A CNA2008101073428A CN200810107342A CN101417497A CN 101417497 A CN101417497 A CN 101417497A CN A2008101073428 A CNA2008101073428 A CN A2008101073428A CN 200810107342 A CN200810107342 A CN 200810107342A CN 101417497 A CN101417497 A CN 101417497A
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- China
- Prior art keywords
- mixing screw
- cover
- bearing
- main shaft
- pull bar
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Abstract
The invention discloses a mixed die applied to polyurethane injection molding devices, including a spindle (5), a bearing sleeve (6), a centrifugal projecting disc (8) and a mixing screw (12); wherein, the front end and the rear end of the bearing sleeve (6) are provided with a front bearing cap (7) and a rear bearing cap (4) respectively. A pull rod (1) runs through the interior of the spindle (5) and is provided with a reset spring (2) at one end and a locating sleeve (10) and a screw nut (11) at the other end. An internal cone-shaped expanding sleeve (9) sheathed at the end of the spindle (5) is matched and installed with the locating sleeve (10) on the pull rod. The mixing screw (12) is also sheathed on the combination of the spindle end, the internal cone-shaped expanding sleeve (9), the locating sleeve (10) and the screw nut (11). The invention has the advantages that the replacement of the mixing screw is more convenient and faster, and the mixing screw can be fixed on the spindle tightly, therefore, the work efficiency can be enhanced.
Description
Affiliated technical field
The present invention relates to a kind ofly footwear are carried out high-speed stirred with isocyanates and polyalcohol mix and generate polyurethane material and direct Coinjection molding apparatus, specifically relate to a kind of mixed gear end.
Background technology
Footwear are two kinds of different chemical raw materials with isocyanates and polyalcohol, through the high-speed stirred of mixed gear end mix, fully chemical reaction takes place after and generate the polyurethane material, by mixed gear end this polyurethane material directly is injected at moulding in the shoe mould again.But the main shaft of existing mixed gear end and mixing screw are for being threaded, and it is changed, and mixing screw speed is slow, inefficiency.In addition, the speed of mainshaft is low, mixed effect is poor; The inner easy charging of forward and backward bearing and cause damage; The every in the course of the work material feeding of mixing screw once just needs to change, clean once, and tradition is to clean with volatile chemical substance, and environment is caused certain pollution.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, and conveniently mixed gear end of a kind of replacing mixing screw is provided.
Purpose of the present invention is realized by following technical scheme: a kind of mixed gear end, comprise main shaft, bearing holder (housing, cover), centrifugal dish, the mixing screw of getting rid of, the front and back ends of bearing holder (housing, cover) is respectively equipped with front bearing retainer, rear bearing cover, in described main shaft, be penetrated with pull bar, one end of pull bar is equipped with back-moving spring, the other end of pull bar is equipped with positioning sleeve and nut, the end of main shaft is with the inner conical expansion set and cooperates installation with positioning sleeve on the pull bar, and described mixed gear end is enclosed within again on the combination of spindle nose, inner conical expansion set, positioning sleeve and nut.
After adopting structure of the present invention, above-mentioned main shaft is connected with the tensioner cover that mixing screw utilizes inner conical expansion set, positioning sleeve and nut to form, the endoporus conical surface of expansion set matches with the male cone (strobilus masculinus) of main shaft to form unclamping and swelling of expansion set, as long as external force is added on the pull bar, the tensioner cover shrinks immediately, and mixing screw can be changed easily and fast; When external force is cancelled effect because of back-moving spring, the tension of inner conical expansion set and mixing screw is contained on the main shaft tightly, thereby improved operating efficiency.
Description of drawings
The present invention is further elaborated below in conjunction with the drawings and the specific embodiments.
Fig. 1 is the structural representation of mixed gear end of the present invention (and mixing chamber).
The specific embodiment
With reference to Fig. 1, mixed gear end of the present invention, comprise main shaft 5, bearing holder (housing, cover) 6, centrifugal dish 8, the mixing screw 12 of getting rid of, the front and back ends of bearing holder (housing, cover) 6 is respectively equipped with front bearing retainer 7, rear bearing cover 4, in described main shaft 5, be penetrated with pull bar 1, one end of pull bar 1 is equipped with back-moving spring 2, the other end of pull bar 1 is equipped with positioning sleeve 10 and nut 11, the end of main shaft 5 is with inner conical expansion set 9 and cooperates installation with positioning sleeve 10 on the pull bar, and described mixing screw 12 is enclosed within again on the combination of spindle nose, inner conical expansion set 9, positioning sleeve 10 and nut 11.Mixing screw 12 enters into again in the mixing chamber 13.
Wherein, main shaft 5 is supported by fore bearing 14 and rear bearing 15 in bearing holder (housing, cover) 6; The radial location of fore bearing 14 and rear bearing 15 is by bearing holder (housing, cover) 6 restrictions, and the axial location of fore bearing 14 is limited by front bearing retainer 7, the centrifugal dish 8 that gets rid of, and the axial location of rear bearing 15 is by rear bearing cover 4, belt pulley 3 restrictions; Centrifugally get rid of dish 8 and belt pulley 3 is contained on the main shaft 5, main shaft 5 is driven by belt pulley 3; Mixing screw 12 by 9 swellings of inner conical expansion set on main shaft 5 ends, inner conical expansion set 9 is enclosed within on the positioning sleeve 10, positioning sleeve 10, nut 11 are contained on pull bar 1 end threadably, and the endoporus conical surface of inner conical expansion set 9 and the male cone (strobilus masculinus) of main shaft 5 match and form unclamping and swelling of expansion set.When external force pushing drawing rod 1, inner conical expansion set 9 is under the promotion of pull bar 1 and positioning sleeve 10, and moving right as shown in Figure 1 caused expansion set to shrink and reached with mixing screw 12 and unclamp, thereby takes off mixing screw 12 easily; When external force is cancelled effect because of back-moving spring 2,9 tensions of inner conical expansion set and mixing screw 12 is contained on the main shaft 5 tightly.
In order to prevent that effectively the polyurethane material from entering the fore bearing place, described front bearing retainer 7 and centrifugal getting rid of between the dish 8 are mechanical bend labyrinth type fitted seal, shown in the mark A of Fig. 1, polyurethane material zero-clearance are entered in the bearing holder (housing, cover).For main shaft and mixing screw are run up, improve mixed effect, can in described bearing holder (housing, cover) 6, be provided with around cooling water channel 16, and bearing holder (housing, cover) 6 locate up and down be provided with inlet opening 17, apopore 18 respectively, owing to its good cooling results make main shaft and mixing screw at a high speed, low noise stable operation.
In order to reach the purpose of automatic cleaning mixing screw, the profile that the front portion of described mixing screw 12 is a section is made as conical surface shape.The present invention utilizes the control of the gap length between (interior) conical surfaces of one section of (outward) conical surface of anterior one section of mixing screw 12 and mixing chamber 13 front portion to reach the cleaning purpose.When needs clean, mixing chamber 13 is motionless, external force impeller-hub bearing sleeve 6 moves forward mixing screw 12, so just make the gap of one section conical surface of one section conical surface of mixing screw 12 front portions and mixing chamber 13 front portions become very little, running up at mixing screw 12 produces following polyurethane clout discharge of centrifugal action, reaches the purpose of cleaning.No longer need volatile chemical substance to clean mixing screw, have environmental-protection function.
Claims (4)
1, a kind of mixed gear end, comprise main shaft (5), bearing holder (housing, cover) (6), the centrifugal dish (8) that gets rid of, mixing screw (12), before the bearing holder (housing, cover) (6), the rear end is respectively equipped with front bearing retainer (7), rear bearing cover (4), it is characterized in that: in described main shaft (5), be penetrated with pull bar (1), one end of pull bar (1) is equipped with back-moving spring (2), the other end of pull bar (1) is equipped with positioning sleeve (10) and nut (11), the end of main shaft (5) is with inner conical expansion set (9) and cooperates installation with positioning sleeve (10) on the pull bar, and described mixing screw (12) is enclosed within spindle nose again, inner conical expansion set (9), on the combination of positioning sleeve (10) and nut (11).
2, mixed gear end as claimed in claim 1 is characterized in that: described front bearing retainer (7) and centrifugal getting rid of are mechanical bend labyrinth type fitted seal between the dish (8).
3, mixed gear end as claimed in claim 1 or 2 is characterized in that: in described bearing holder (housing, cover) (6), be provided with around cooling water channel (16), and bearing holder (housing, cover) (6) locate up and down be provided with inlet opening (17), apopore (18) respectively.
4, mixed gear end as claimed in claim 3 is characterized in that: the profile that the front portion of described mixing screw (12) is a section is made as conical surface shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101073428A CN101417497B (en) | 2008-11-05 | 2008-11-05 | Mixed gear end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101073428A CN101417497B (en) | 2008-11-05 | 2008-11-05 | Mixed gear end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101417497A true CN101417497A (en) | 2009-04-29 |
| CN101417497B CN101417497B (en) | 2011-06-08 |
Family
ID=40628588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101073428A Expired - Fee Related CN101417497B (en) | 2008-11-05 | 2008-11-05 | Mixed gear end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101417497B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175123A (en) * | 2011-02-25 | 2011-09-07 | 武汉耀华安全玻璃有限公司 | Hole positioning tensioning device |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN109256894A (en) * | 2018-10-09 | 2019-01-22 | 北京理工大学 | A kind of gapless straight drive electric pushrod |
-
2008
- 2008-11-05 CN CN2008101073428A patent/CN101417497B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175123A (en) * | 2011-02-25 | 2011-09-07 | 武汉耀华安全玻璃有限公司 | Hole positioning tensioning device |
| CN102175123B (en) * | 2011-02-25 | 2012-10-10 | 武汉耀华安全玻璃有限公司 | Hole positioning tensioning device |
| CN105703531A (en) * | 2016-03-16 | 2016-06-22 | 广州可鼎自动化设备有限公司 | Biconical expansion locking mechanism |
| CN109256894A (en) * | 2018-10-09 | 2019-01-22 | 北京理工大学 | A kind of gapless straight drive electric pushrod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101417497B (en) | 2011-06-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20161105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |