CN107498840A - A kind of die head of film blowing machine structure - Google Patents
A kind of die head of film blowing machine structure Download PDFInfo
- Publication number
- CN107498840A CN107498840A CN201610943708.XA CN201610943708A CN107498840A CN 107498840 A CN107498840 A CN 107498840A CN 201610943708 A CN201610943708 A CN 201610943708A CN 107498840 A CN107498840 A CN 107498840A
- Authority
- CN
- China
- Prior art keywords
- core rod
- conveyor screw
- die orifice
- circular cone
- helicla flute
- 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
- 238000010096 film blowing Methods 0.000 title claims abstract description 8
- 241000237970 Conus <genus> Species 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- 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
- B29C48/30—Extrusion nozzles or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of die head of film blowing machine structure, and jacket internal sets circular cone through hole, sets conveyor screw in the circular cone through hole, the conveyor screw is also in pyramid type；One end being relatively large in diameter of the conveyor screw is fixed on feed end, and the less one end of diameter is fixed with core rod；A plurality of helicla flute is set on conveyor screw, and the helicla flute connects with charging aperture；The depth of the helicla flute is from large to small；The radial clearance of the circular cone through hole of the conveyor screw and overcoat is changed from small to big；The core rod is arranged in die orifice, and the core rod includes conus portion and cylindrical portion, and the cavity of corresponding shape is set in the die orifice；The radial clearance of the conus portion of the core rod and the circular cone cavity of die orifice is from large to small；The radial clearance of the cylindrical portion of the core rod and the cylinder cavity of die orifice is constant.It is an advantage of the invention that：Resin flowing is more steady, and film bubble is smooth, and thin and thick is uniform, and tolerance value is small.
Description
Technical field
The present invention relates to plastics machinery industry, specifically a kind of die head of inflation film manufacturing machine.
Background technology
Existing inflation film manufacturing machine species is a lot, but often show die wall thickness ununiformity is even, material temperature is unstable, discharging have some setbacks,
The problems such as efficiency is low, in particular for the higher edible mushroom bag industry of quality requirement, because culture medium of edible fungus is to bacterium bag bag
Requirement more and more higher, and if the uneven quality that will directly affect bacterium bag (rod) of the thickness equal-specification of bacterium bag bag, final shadow
Ring the output value of edible mushroom, therefore, it is necessary to a kind of higher die head of film blowing machine of precision meets above-mentioned requirements.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of height that can guarantee that the technical indicators such as blown film thickness
Precision die head, concrete technical scheme are as follows：
A kind of die head of film blowing machine structure, including overcoat, the die orifice on overcoat top and the feed end of overcoat bottom, the overcoat
Inside sets circular cone through hole, sets conveyor screw in the circular cone through hole, the conveyor screw is also in pyramid type；The conveyor screw it is straight
The larger one end in footpath is fixed on feed end, and the less one end of diameter is fixed with core rod；A plurality of helicla flute, institute are set on conveyor screw
Helicla flute is stated to connect with charging aperture；The depth of the helicla flute is from large to small；The footpath of the circular cone through hole of the conveyor screw and overcoat
Change from small to big to gap；The core rod is arranged in die orifice, and the core rod includes conus portion and cylindrical portion, is set in the die orifice
The cavity of corresponding shape；The radial clearance of the conus portion of the core rod and the circular cone cavity of die orifice is from large to small；The mould
The radial clearance of the cylindrical portion of core and the cylinder cavity of die orifice is constant.
The helicla flute is more than the circle of conveyor screw two.
The cylindrical portion of the core rod and the length of the cylinder groove of die orifice are more than 40mm.
It is an advantage of the invention that：
1st, the setting of conical spiral ensure that changes from small to big with the radial clearance of outer inner room；The depth of the helicla flute by
Diminish greatly (depth is numerical value, and application describes from large to small)；Such set make it that resin flowing is more steady, and film bubble is put down
Whole, thin and thick is uniform, and tolerance value is small；2. the radial clearance of the conus portion of core rod and the circular cone cavity of die orifice is from large to small, blown film
During can guarantee that pressure gradually increases；
3rd, the outer ring helicla flute of conveyor screw encloses around body two, and more uniform, effective integration is blended；
4th, the cylindrical portion arm's length standard of core rod is highly 35mm, and the present invention is more than 40mm, improves resin after lengthening and flows
Speed is more steady, uniform, is advantageous to film mouth uniform discharge.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is illustrated below in conjunction with the accompanying drawings, as shown in figure 1, the present invention includes overcoat 2, the die orifice 3 on the top of overcoat 2
And the feed end 12 of overcoat bottom, the inside of overcoat 2 set circular cone through hole 6, conveyor screw 1, institute are set in the circular cone through hole 6
It is also in pyramid type to state conveyor screw 1；One end being relatively large in diameter of the conveyor screw 1 is fixed on feed end 12, diameter less one
End is threadably secured with core rod 4 or conveyor screw 1 and 4 integrated structure of core rod；A plurality of helicla flute 5, institute are set on conveyor screw 1
Helicla flute 5 is stated to connect with charging aperture 10；From large to small, the present embodiment is by 20mm to 0mm to the depth of the helicla flute 5；Spiral
The section of groove 5 is in semicircle shape；The radial clearance of the conveyor screw 1 and the circular cone through hole of overcoat 2 is changed from small to big, and the present embodiment is unilateral
Gap is by 0 to 20mm；The core rod 4 is arranged in die orifice 3, and the core rod 4 includes conus portion 13 and cylindrical portion 14, the mould
The intraoral conical bores 9 and circular cylindrical cavity 11 that corresponding shape is set；The conus portion 13 of the core rod and the circular cone of die orifice
From large to small, the present embodiment one side gap is by 20 to 0.5mm for the radial clearance of cavity 9；The cylindrical portion 14 and mould of the core rod
The radial clearance of the cylinder cavity 11 of mouth is constant.
The helicla flute 5 is more than 1 liang of circle of conveyor screw.Quantity the present embodiment of helicla flute 5 is 3, may also be set to 4
It is individual, 5,6 and more, specifically can be depending on produce reality.
The length of the cylindrical portion 14 of the core rod and the cylinder cavity 11 of die orifice is more than 40mm.
It is that cylindric, core rod conus portion 13 and the radial clearance of the circular cone cavity 9 of die orifice are constant relative to conveyor screw
Situation comparative example, in the case where other situations are constant, the blown film precision of the present embodiment is many higher, data such as table 1
Table 1
From above-described embodiment and the data of comparative example, the present invention is far better than comparative example；
Under the data cases maintained like, only change the quantity of conveyor screw, comparative example is using helix around conveyor screw 1
Circle, then, it is seen that the even situation of became uneven, data such as table 2
Table 2
As seen from the above table, uniformly value has a great influence thickness of the number of turns of helix to product, certainly, if the circle of conveyor screw
Number is excessive, and if the number of turns is 3, uniformly value does not improve thickness, such as table 3
Table 3
As long as ensureing that the radial clearance of the conveyor screw 1 and the circular cone through hole of overcoat 2 is changed from small to big, such as unilateral gap is served as reasons
0 to 10-20mm；The core rod 4 is arranged in die orifice 3, and the core rod 4 includes conus portion 13 and cylindrical portion 14, in the die orifice
The conical bores 9 and circular cylindrical cavity 11 of corresponding shape are set；The conus portion 13 of the core rod and the circular cone die cavity of die orifice
From large to small, such as unilateral gap is by 20-30 to 0.5mm for the radial clearance of body 9；The cylindrical portion 14 of the core rod and the cylinder of die orifice
The radial clearance of cavity 11 is constant；It is superior to circular cone cavity 9 of the conveyor screw for cylindric, core rod conus portion 13 and die orifice
The constant situation of radial clearance comparative example.
Claims (3)
1. a kind of die head of film blowing machine structure, including overcoat, the die orifice on overcoat top and the feed end of overcoat bottom, its feature exist
In：The jacket internal sets circular cone through hole, sets conveyor screw in the circular cone through hole, the conveyor screw is also in pyramid type；Institute
The one end being relatively large in diameter for stating conveyor screw is fixed on feed end, and the less one end of diameter is fixed with core rod；Set on conveyor screw
A plurality of helicla flute, the helicla flute connect with charging aperture；The depth of the helicla flute is from large to small；The conveyor screw and overcoat
The radial clearance of circular cone through hole is changed from small to big；The core rod is arranged in die orifice, and the core rod includes conus portion and cylindrical portion, institute
State the cavity that corresponding shape is set in die orifice；The radial clearance of the conus portion of the core rod and the circular cone cavity of die orifice is by big
Diminish；The radial clearance of the cylindrical portion of the core rod and the cylinder cavity of die orifice is constant.
A kind of 2. die head of film blowing machine structure according to claim 1, it is characterised in that：The helicla flute encloses around conveyor screw two
More than.
A kind of 3. die head of film blowing machine structure according to claim 1, it is characterised in that：The cylindrical portion and die orifice of the core rod
The length of cylinder groove be more than 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943708.XA CN107498840A (en) | 2016-11-02 | 2016-11-02 | A kind of die head of film blowing machine structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943708.XA CN107498840A (en) | 2016-11-02 | 2016-11-02 | A kind of die head of film blowing machine structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107498840A true CN107498840A (en) | 2017-12-22 |
Family
ID=60679313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610943708.XA Pending CN107498840A (en) | 2016-11-02 | 2016-11-02 | A kind of die head of film blowing machine structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107498840A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866104Y (en) * | 2005-07-21 | 2007-02-07 | 于国志 | Blending film blowing machine head |
| CN201320839Y (en) * | 2008-12-18 | 2009-10-07 | 张安区 | Film blowing machine head |
| CN203472145U (en) * | 2013-08-12 | 2014-03-12 | 史民强 | Film blowing handpiece |
| CN203945680U (en) * | 2014-07-07 | 2014-11-19 | 中南民族大学 | A kind of Electromagnetic Heating die head of film blowing machine |
| CN206344452U (en) * | 2016-11-02 | 2017-07-21 | 郑伟春 | A kind of die head of film blowing machine structure |
-
2016
- 2016-11-02 CN CN201610943708.XA patent/CN107498840A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866104Y (en) * | 2005-07-21 | 2007-02-07 | 于国志 | Blending film blowing machine head |
| CN201320839Y (en) * | 2008-12-18 | 2009-10-07 | 张安区 | Film blowing machine head |
| CN203472145U (en) * | 2013-08-12 | 2014-03-12 | 史民强 | Film blowing handpiece |
| CN203945680U (en) * | 2014-07-07 | 2014-11-19 | 中南民族大学 | A kind of Electromagnetic Heating die head of film blowing machine |
| CN206344452U (en) * | 2016-11-02 | 2017-07-21 | 郑伟春 | A kind of die head of film blowing machine structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171222 |
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| RJ01 | Rejection of invention patent application after publication |