CN106738590A - A kind of pouring head overcoat for PU materials - Google Patents
A kind of pouring head overcoat for PU materials Download PDFInfo
- Publication number
- CN106738590A CN106738590A CN201611168676.7A CN201611168676A CN106738590A CN 106738590 A CN106738590 A CN 106738590A CN 201611168676 A CN201611168676 A CN 201611168676A CN 106738590 A CN106738590 A CN 106738590A
- Authority
- CN
- China
- Prior art keywords
- wall
- overcoat
- pouring head
- inwall
- side wall
- 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.)
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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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/3415—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
A kind of pouring head overcoat for PU materials, with hollow cylindrical side wall, is provided with the sandwich for cooling water circulation in the wall of side, the side wall includes inner and outer wall, mezzanine space is formed between inner and outer wall.In the mezzanine space, two sealed spacer bar is set between the inner walls and the outer, extend to the bottom of overcoat from overcoat top respectively, it is tightly connected with inwall, outer wall and overcoat top, and respectively with the inner and outer wall palette of jacket bottom at keep interval, hole is formed, is thus formed in sleeve side wall sandwich by the two relative sandwich portions circulated for cooling water of the porosity communication, two sandwich portion tops are also respectively provided with cooling water gateway.The sandwich of pouring head overcoat of the invention so that the circulation of cooling water is more smoothly, while jacket structure is simplified, has reached good cooling effect.
Description
Technical field
The present invention relates to PU (polyurethane) material placingJi Shu field, especially outside a kind of pouring head for PU materials
Set.
Background technology
, it is necessary to using casting equipment model will be poured into such as PU expanded materials in PU (polyurethane) material pouring technology
In, obtain corresponding PU products after foaming in a model.
Existing pouring head jacket structure is complicated, and heat dispersion is bad, and uses such as stainless steel and other metal materials
It is made.During product use, due to the high-speed rotation of mixing head, outer sheath temperature is frequently resulted in too high；And PU materials hold
Easily it is bonded on pouring head outer casing inner wall, influence is stirred and casting quality；Need constantly to shut down in use, clean,
Low production efficiency；And the PU materials bonded on pouring head outer casing inner wall are bonded closely with inwall, it is more difficult to remove；Material feeding is multiple
Afterwards, using the gentle punching cleaning of solvent, inwall gap diminishes, so as to influence flow velocity, product is produced bubble, influences product quality.
The content of the invention
To solve the above problems, the invention provides a kind of pouring head overcoat for PU materials, with hollow cylindrical
Side wall, be provided with the wall of side for cooling water circulation sandwich, the side wall include inner and outer wall, inner and outer wall it
Between be formed with the mezzanine space of Cooling Water flowing, in the mezzanine space, two sealed spacer bars are arranged on inwall and outer
Between wall, respectively from overcoat top to overcoat bottom extend, with inwall, outer wall and overcoat top be tightly connected, and respectively with
The inner and outer wall joint portion of jacket bottom keeps interval, forms hole, is thus formed by institute in sleeve side wall sandwich
Two relative sandwich portions for cooling water circulation of porosity communication are stated, is also respectively provided with the top of two sandwich portions cold
But water gateway.
Further, the inwall is constituted has PP or PE coatings on a side surface of stirring space.
Further, inner and outer wall is Split type structure, and inwall is made up of PP or PE materials.
Further, the bottom of inwall bends to outer wall, is engaged with outer wall at the adapting table of outer wall.
Further, the top of inwall is provided with the flange collar towards outer wall, and what flange collar was sealed abuts on outer wall.
Further, two sealed spacer bars extend from inwall flange collar lower edge to the bottom of overcoat respectively, and respectively with inwall
Bottom and the outer wall bending portion of being tightly connected keep interval, form hole.
Further, wall top in side is provided with the flange being connected with pouring head miscellaneous part, is provided with flange and is connected together
Hole.
Further, the outer rim of flange protrudes from sleeve side wall, sealing ring is formed with the end face of the flange and installs annular
Groove.
Further, flange is integrally formed with the outer wall of side wall.
Further, it is formed with internal thread in the lower inside of the side wall.
Pouring head overcoat of the invention has special sandwich so that the circulation of cooling water is more smoothly, with tradition
Spiral cooling structure compare, while jacket structure is simplified, cooling water can be adjusted by adjusting the pore size
Flow, has reached more preferable cooling effect, under conditions of identical hydraulic pressure, inlet water temperature, device temperature can reduce by 5 degree with
On.Also, because pouring head outer casing inner wall has the raw material such as PP (polypropylene) or PE (polyethylene) layer, PU (polyurethane) material
It is not easy to be bonded on the inwall of pouring head overcoat, compared to prior art, pouring head overcoat of the invention being capable of the longer time
Continuous operation.
It is demonstrated experimentally that in the case of using PU (polyurethane) raw material (virgin material), the pouring head of all steel material is general
Be accomplished by cleaning after material feeding 200 times, and it is of the invention can also after material feeding 600 times with PP or PE layers of pouring head overcoat
Normal operation, operational efficiency lifts more than 3 times.
Brief description of the drawings
Fig. 1 is the top view of casting equipment of the invention；
Fig. 2 is sectional view of the casting equipment top view of the invention along A-A directions；
Fig. 3 a are the stereogram of the overcoat of casting equipment of the invention；
Fig. 3 b are the side view of the overcoat of casting equipment of the invention；
Fig. 3 c are the top view of the overcoat of casting equipment of the invention；
Fig. 3 d are the sectional view in C-C directions along Fig. 3 b of the overcoat of casting equipment of the invention；
Fig. 3 e are the sectional view in C-C directions along Fig. 3 b of the overcoat of the another embodiment of casting equipment of the present invention；
Fig. 4 a are the stereogram of the material mouth of casting equipment of the invention；
Fig. 4 b are the sectional view of the material mouth of casting equipment of the invention；
Fig. 5 a are the front view of the mixing head of casting equipment of the invention；
Fig. 5 b are the sectional view in C-C directions along Fig. 5 a of the mixing head of casting equipment of the invention；
Fig. 5 c are the front view of the mixing head plug of casting equipment of the invention；
Fig. 5 d are the side view of the mixing head of the another embodiment of casting equipment of the present invention；
Fig. 5 e are the front view of the mixing head of the another embodiment of casting equipment of the present invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Casting equipment/pouring head as shown in Figure 1 and Figure 2, is provided with multiple bearings 11 in the bearing block 1 on pouring head top, main
Axle 2 is contained in bearing block 1, and the two ends of main shaft 2 are passed from the two ends of bearing block 1 respectively, and the end of bearing block 1 is passed in main shaft 2
Be provided with sealing device 12, the sealing device 12 can using the present inventor preceding patent 201410244757.5,
Technology in 201420293401.6.Bearing block 1 is fixed in terminal pad 3, and the sealing device 12 of the bottom of bearing block 1 passes through connection
Disk 3, main shaft 2 is extend into the mixing chamber 4 that the lower section of terminal pad 3 is set.Cylinder 41, inlet valve 42, needle-valve are connected with mixing chamber 4
43rd, purge valve 44, feed back pressure regulator valve 45 etc., various PU raw materials are injected into mixing chamber 4 by one or more material interfaces, main shaft
2 extend on the end of mixing chamber 4 and are fixedly connected with along the axially extending mixing head 5 of main shaft 2.The top of mixing head 5 is located at mixing
In the space of room 4, the middle and lower part of mixing head 5 passes from mixing chamber 4, is received into the space of overcoat 6 of the bottom of mixing chamber 4 fixation
In, the bottom of overcoat 6 is provided with castable mouth 7.When casting equipment works, it is vertically arranged, drives main shaft 2 to rotate by motor, main shaft 2
Fixed mixing head 5 follows main shaft 2 to rotate together with one end of mixing chamber 4, and various PU raw materials (being determined according to product) pass through
Different material interfaces 42 enter into mixing chamber 4, by PU raw materials in mixing chamber 4 and the space of overcoat 6 under the turning effort of mixing head 5
In mixed, the PU materials for mixing are foamed by expecting that mouth 7 is injected into grinding tool.
As illustrated in figs. 3 a-3d, overcoat 6 has hollow cylindrical side wall 60, and the one end of side wall 60 is provided with and is connected with mixing chamber 4
Flange 61.The connecting hole 62 being connected together for the respective base projection with mixing chamber 4 is provided with flange 61.Flange 61
Outer rim protrudes from sleeve side wall 60, and annular groove 64 is formed with the end face of the flange 61, in order to be connected with mixing chamber 4
When sealing ring is installed, form sealing structure.Sleeve side wall 60 is provided with the sandwich for cooling water circulation, such as Fig. 3 c, 3d
It is shown, including inwall 601 and outer wall 602；The top of inwall 601 is provided with the flange collar 603 towards outer wall 602, and flange collar 603 is sealed
Abut on outer wall 602, can flange collar 603 abut outer wall 602 position on set groove 604, reached by laying sealing ring
To sealing purpose；Inwall 601 and outer wall 602 closure of flange collar more than 603 link together；The bottom of inwall 601 is to outer wall 602
Bending, is tightly connected at the adapting table 611 of outer wall 602 with outer wall 602；Two sealed spacer bar 606 is arranged on sleeve side wall
Between the inwall 601 and outer wall 602 of 60 main bodys, extend from the lower edge of inwall flange collar 603 to the bottom of overcoat 6 respectively, with inwall
601st, outer wall 602 and flange collar 603 are tightly connected, and respectively between the bottom of inwall 601 and the bending of outer wall 602 portion's of being tightly connected holding
Every, hole (not shown) is formed, so as to split to the mezzanine space between inwall 601 and outer wall 602, constitute inwall 601
And in the cooling water free air space between outer wall 602.It is consequently formed the left and right two for cooling water circulation of sleeve side wall 60
Relative sandwich portion 607,608, it passes through the bottom porosity communication, at two relative tops of sandwich portion 607,608
It is also respectively provided with two cooling water gateways 609,610.Additionally, flange 61 can with the one of outer wall 602 of side wall into
Type.In the present embodiment, extend to form outer wall extension 612 in the bottom of adapting table 611 of outer wall 602, prolong in outer wall
The internal thread for being connected with material mouth 7, the connection of outer wall extension 612 and outer wall adapting table 611 are formed with the inner side of extending portion 612
Portion is provided with the sealed groove 605 for laying sealing ring.The inwall 601 of sleeve side wall 60 is made up of PP or PE materials.
Or, it is as shown in Figure 3 e, cold with the composition sleeve side wall 60 shown in Fig. 3 d in another embodiment of the present invention
But the inwall 601 of the logical sandwich of current is different with the Split type structure of outer wall 602, inwall 601 and outer wall 602 in the present embodiment
It is structure as a whole, mezzanine space is formed with therebetween.Two sealed spacer bars 606 are arranged on the inwall 601 of the main body of sleeve side wall 60
And outer wall 602 between, overcoat top top extends to the bottom of overcoat 6 respectively, with inwall 601, outer wall 602 and overcoat top top
Portion is tightly connected, and the inner and outer wall joint portion with jacket bottom keeps interval respectively, hole (not shown) is formed, so that right
Mezzanine space between inwall 601 and outer wall 602 is split, and the cooling water circulation constituted between inwall 601 and outer wall 602 is empty
Between in.The relative sandwich portion 607,608 in the left and right two for cooling water circulation of sleeve side wall 60 is consequently formed, it passes through
The bottom porosity communication, two cooling water gateways are also respectively provided with two relative tops of sandwich portion 607,608
609、610.The inwall 601 of sleeve side wall 60 is towards having PP or PE coatings on a side surface of pouring head overcoat hollow space.
Material mouth 7 is in funnel-shaped structure wide at the top and narrow at the bottom, can be sealably coupled to by the way of screw thread or engaging and put outward,
It has inside and outside double-layer structure, and as shown in Fig. 4 a, 4b, the internal layer 701 contacted with cast raw material is made up of PP or PE materials, or tool
There are PP or PE coatings, be wrapped in the outer layer 702 outside the internal layer 701 and be made up of the high-strength material of such as stainless steel, so that
Increase the integral rigidity of charging nozzle 7.Expect the funnel-shaped structure top edge side of mouth 7 in a ring, be provided with and the inwall of overcoat 6
The external screw thread 703 of the internal thread connection on 601 inner side, funnel-shaped structure dome top surface is formed with annular groove 704, annular
The inner edge and bottom of groove 704 are made up of internal layer 701, and the outer cause outer layer 702 of annular groove 704 is constituted, and annular groove 704 is used
In sealing ring is accommodated, so as to be tightly connected with overcoat 6.Expecting the funnel-shaped structure external collar of mouth 7 has terrace with edge 705, such as six ribs
Platform, in order to expect the installation of mouth 7.
Fig. 5 a show the stereogram of mixing head of the invention 5, and according to use state, from top to bottom (Fig. 5 a are from right to left) is wrapped
Include four sections --- the 501, first spiral section 502 of fin section, the stirring spiral section 504 of raised section 503 and second.
Fin section 501 is located at the top of mixing head 5, has the flange for protruding from mixing head main body 506 on its top
5011, it is convexly equipped with 3-5 pieces fin 5012 relative to the axially inclined of mixing head main body 506 on the surface of mixing head main body 506, it is excellent
3 are selected, the multi-disc fin 5012 is evenly distributed on the circumferential surface of mixing head main body 506, be highly 3-6mm, fin
5012 one end are connected to the lower surface of flange 5011, and the other end extends to the top edge of the first spiral section 502, the multi-disc fin
5012 have identical angle of inclination, the top edge institute of fin 5012 and the spiral section 502 of flange 5011 and first in the present embodiment
Into acute angle be 60 °, those skilled in the art can select in the range of 50-70 °.
First spiral section 502 is located at the lower end of fin section 501, uniform convex on the circumferential surface of its mixing head main body 506
It is provided with a plurality of spiral raised line 5021, the hand of spiral of a plurality of spiral raised line 5021 and the inclination side of the fin 5012 of fin section 501
Highly it is 2-3mm to identical.In the circumferential surface in the centre position of the first spiral section 502, dug to axis direction uniform intervals
There are two grooves of same size 5022, each groove respectively accounts for 120 ° of circumference, is separated by 60 ° of circumference, and those skilled in the art also may be used
Uniformly to dig three grooves.
Stirring raised section 503 be located at the first spiral section 502 lower end, stir raised section 503 mixing head main body 506 it is straight
Footpath is raised in stirring less than fin the 501, first spiral section 502 of section and the diameter of the mixing head main body 506 of the second spiral section 504
Uniform intervals are provided with four row stirring projection on the surface of the circumferencial direction of mixing head main body 506 of section 503, i.e., in mixing head main body
90 ° of row stirrings of interval setting four are raised on 506 circumferencial directions.Wherein, first row stirring is raised includes and the neighbour of the first spiral section 502
Connect one first stirring raised 5031 and convex along three second stirrings that the axis of mixing head main body 506 successively uniform intervals is set
Play 5032；First stirring raised 5031 and the second stirring raised 5032 are in boss-shaped, and the cross section of the first stirring raised 5031 is
It is axially the rectangle on side long with mixing head main body 506, the cross section of the second stirring raised 5032 is with the axle of mixing head main body 506
To the inversion right-angled trapezium for vertical edges, the incline direction and a plurality of spiral shell of the first spiral section 502 of the hypotenuse of right-angled trapezium are inverted
The hand of spiral for revolving raised line 5021 is identical with the incline direction of the fin 5012 of fin section 501.Secondary series stirring is raised including right
The three secondary series stirring that should be set in the gap uniformity between four stirrings raised 5031,5032 in first row stirring projection
What is set after projection 5032 and three second stirrings raised 5032 is convex with one first stirring of the adjoining of the second spiral section 504
Play 5031.Similar, the raised raised gap uniformity of adjacent one row stirring that corresponds to of the three, the 4th row stirrings is set.First stirs
The height for mixing the stirring raised 5032 of projection 5031 and second is 6-12mm.In the present embodiment, it is described in the case of four row, this
Art personnel are appreciated that spaced even column can be circumferentially set as above to be stirred projection to realize this hair
It is bright.Alternatively, it is also possible to only be uniformly arranged multiple second stirrings raised 5032 in the mixing head main body 506 of stirring raised section 503
To realize the present invention.
Second spiral section 504 is located at the lower end of stirring raised section 503, with a plurality of spiral raised line 5041 and groove 5042,
Its structure is identical with the first spiral section 502.
Can set, the 501, first spiral section 502 of fin section, the spiral section 504 of stirring raised section 503 and second have substantially
Identical external diameter.Can also set, fin the 501, first spiral section 502 of section and the second spiral section 504 are outer with what is be substantially the same
Footpath, stirs the external diameter of raised section 503 slightly larger than fin the 501, first spiral section 502 of section and the external diameter of the second spiral section 504, that is, stir
The top for mixing projection is higher by the surface of fin the 501, first spiral section 502 of section and the second spiral section 504.
Preferably, the 501, first spiral section 502 of fin section, the stirring spiral section 504 of raised section 503 and second are in mixing head 5
Length ratio on axial direction is 2：3：4：3.
Preferably, the spiral section 502 of fin 5012 and first or the spiral raised line of the second spiral section 504 of fin section 501
5021st, 5041 height ratio is 1：1.5-2.0；The fin 5012 of fin section 501 is raised with the first stirring of stirring raised section 503
5031 and second the height ratio of stirring raised 5032 be 1：3-4.0.
During assembling, fin section 501 and the first spiral section 502 are located in the space of mixing chamber 4, and raw material is preferably driven into
The middle and lower part of fin section 501, by the rotation of mixing head, can be pressed downward for raw material by fin section 501, and less can squeeze into
The generation of bubble during raw material；The spiral section 504 of stirring raised section 503 and second is located in the space of overcoat 6.Additionally, and funnel-form
The shape of material mouth 7 be adapted, the lower end mixing head main body 506 of the second spiral section 504 is set to inverted boss 5061.
As shown in Fig. 5 b, 5c, mixing head 5 is made up of the plug 51 and outer layer 52 adaptable with head shapes are mixed, outer layer into
Type is made up of in mandrel surface light material, can be made up of PP or PE materials, or with PP or PE coatings；Plug 51 is preferably
The metal material of such as stainless steel, in hollow form, is connected with main shaft 2, is rotated under the drive of main shaft 2.
Plug 51 includes caput 511, connecting rod 512 and rod tail connecting portion 513, caput 511, connecting rod 512 and rod tail connecting portion
513 cross section outer rim is rounded and mutually coaxially connected, the two ends of connecting rod 512 respectively with caput 511 and rod tail connecting portion 513
It is coaxially connected.The top edge of caput 511 and bottom along being nearby respectively arranged with annular projection 5112,5113, on the bottom face of caput 511
It is formed with the conical surface 5111 for extending downwardly.The bottom that rod tail connecting portion 513 is connected with connecting rod 512 is convex along nearby a ring-type is provided with
5131 are played, is additionally provided between in the annular projection 5131 of rod tail connecting portion 513 and the top of rod tail connecting portion 513 another
Annular projection 5132.Main shaft 2 is inserted into the hollow space of plug 51 by rod tail connecting portion 513.
Because cladding material has selected light material, plug employs the moulding of similar dumbbell, compared in the prior art
The mixing head of metal material, mixing head easy to manufacture of the invention ensure that uniform rotation, reduce eccentric degree, so that
In mixed processes, the generation of bubble in raw material, improve product quality are reduced.
Fig. 5 d, 5e show the stereogram of the mixing head 8 of further embodiment of this invention, and mixing head 8 includes mixing head main body
81st, top connector 82, bottom boss portion 83 and bottom connecting portion 84, mixing head main body 81, top connector 82, bottom are inverted
The cross section outer rim of boss portion 83 and bottom connecting portion 84 is rounded and mutually coaxially connected, top and the top of mixing head main body 81
End connecting portion 82 connect, the bottom of mixing head main body 81 is connected with one end of bottom connecting portion 84, bottom connecting portion 84 it is another
Boss portion 83 is inverted with bottom and be connected in end.Selectable, mixing head 8 can omit bottom connecting portion 84, mixing head main body 81
Directly boss portion 83 is inverted with bottom and be connected in bottom.
Mixing head main body 82 is cylindrical, and uniform intervals are provided with 6 rows (more than or equal to 3 on the side wall of mixing head main body 81
Row) mixing component, wherein being provided with row's mixing component on the bottom margin of mixing head main body.Often row's mixing component includes ring
Around 6 (being more than or equal to 3) first stirring raised line 85 of cylinder circumference, 6 first stirring raised line 85 edges on same circumference
Its length direction uniform intervals is set.Each first stirring raised line 85 is in isosceles boss-shaped, with the isosceles along its width
Trapezoid cross section.
Bottom connecting portion 84 is cylindrical, between its height is not more than between two row's mixing components in mixing head main body 81
Away from diameter of its diameter less than mixing head main body 81.In bottom, connecting portion 84 is inverted the side that boss portion 83 is connected with bottom
There is row's mixing component on edge, including around 6 (being more than or equal to 3) second stirring raised line 86 of cylinder circumference, same
Uniform intervals are set 6 second stirring raised lines 86 on circumference along its length.Each second stirring raised line 86 is convex in isosceles
Mesa-shaped, with the isosceles trapezoid section along its width.The length of the second stirring raised line 86 is less than the first stirring raised line 85
Length.
It is inverted coniform boss that boss portion 83 is inverted in bottom, and the shape with funnelform material mouth 7 is adapted, its bottom surface
It is connected with bottom connecting portion 84 or mixing head main body 81.
Top connector 82 is cylindrical, is formed on the basal surface position that top connector 82 is connected with mixing head main body 81
There is fillet surface 87, rotation tooth 88 is formed with the top surface of top connector 82.
Mixing head 5 with previous embodiment is identical, and mixing head 8 includes being made up of plug and outer layer, and outer layer is molded over plug
Surface, is made up of light material, can be made up of PP or PE materials, or with P P or PE coatings；Plug 51 is preferably for example stainless
The metal material of steel, in hollow form, is connected with main shaft 2, is rotated under the drive of main shaft 2.Plug in the present embodiment with it is previous
The mandrel structure of embodiment is identical, will not be described here.
Below the preferred embodiment to the invention is illustrated, but the invention be not limited to it is described
Embodiment, those of ordinary skill in the art can also make a variety of equivalent on the premise of without prejudice to the invention spirit
Modification or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of pouring head overcoat for PU materials, with hollow cylindrical side wall, is provided with for cooling down current in the wall of side
Logical sandwich, it is characterised in that：The side wall includes inner and outer wall, and Cooling Water stream is formed between inner and outer wall
Dynamic mezzanine space,
In the mezzanine space, two sealed spacer bars are set between the inner walls and the outer, respectively from overcoat top to overcoat
Bottom extend, be tightly connected with inwall, outer wall and overcoat top, and protect with the inner and outer wall joint portion of jacket bottom respectively
Hold interval, form hole, being circulated for cooling water by the porosity communication is thus formed in sleeve side wall sandwich
Two relative sandwich portions, two sandwich portion tops are also respectively provided with cooling water gateway.
2. pouring head overcoat as claimed in claim 1, it is characterised in that：The inwall is constituted on a side surface of stirring space
With PP or PE coatings.
3. pouring head overcoat as claimed in claim 1, it is characterised in that：Inner and outer wall is Split type structure, inwall by PP or
PE materials are constituted.
4. the pouring head overcoat as described in one of claim 1-3, it is characterised in that：The bottom of inwall bends to outer wall, outside
Engaged with outer wall at the adapting table of wall.
5. pouring head overcoat as claimed in claim 3, it is characterised in that：The top of inwall is provided with the flange collar towards outer wall,
What flange collar was sealed abuts on outer wall.
6. pouring head overcoat as claimed in claim 5, it is characterised in that：Two sealed spacer bars are respectively from inwall flange collar lower edge
Extend to the bottom of overcoat, and bend the portion of being tightly connected with inwall bottom and outer wall respectively and keep interval, form hole.
7. the pouring head overcoat as described in one of claim 1-3, it is characterised in that：Side wall top be provided with pouring head other
The flange of part connection, is provided with the hole that is connected together on flange.
8. pouring head overcoat as claimed in claim 7, it is characterised in that：The outer rim of flange protrudes from sleeve side wall, the method
Sealing ring is formed with blue end face annular groove is installed.
9. pouring head overcoat as claimed in claim 7, it is characterised in that：Flange is integrally formed with the outer wall of side wall.
10. the pouring head overcoat as described in one of claim 1-3, it is characterised in that：The shape in the lower inside of the side wall
Into there is internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168676.7A CN106738590B (en) | 2016-12-16 | 2016-12-16 | Casting head jacket for PU material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611168676.7A CN106738590B (en) | 2016-12-16 | 2016-12-16 | Casting head jacket for PU material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106738590A true CN106738590A (en) | 2017-05-31 |
| CN106738590B CN106738590B (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611168676.7A Active CN106738590B (en) | 2016-12-16 | 2016-12-16 | Casting head jacket for PU material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113954289A (en) * | 2021-10-17 | 2022-01-21 | 东莞市捷晨硅橡胶机械有限公司 | Intelligent foaming process for liquid silica gel |
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