CN102218808A - Die head for manufacturing breathing mask - Google Patents
Die head for manufacturing breathing mask Download PDFInfo
- Publication number
- CN102218808A CN102218808A CN2011101464442A CN201110146444A CN102218808A CN 102218808 A CN102218808 A CN 102218808A CN 2011101464442 A CN2011101464442 A CN 2011101464442A CN 201110146444 A CN201110146444 A CN 201110146444A CN 102218808 A CN102218808 A CN 102218808A
- Authority
- CN
- China
- Prior art keywords
- section
- die head
- breathing mask
- gas circuit
- pan feeding
- 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.)
- Granted
Links
Images
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a die head for manufacturing a breathing mask, comprising a feeding section, a distributing section, a transition section and an extruding section. The feeding section is of a cone structure; a gas circuit is arranged in the die head; an air inlet of the gas circuit is arranged on the outer wall of the die head while an air outlet of the gas circuit is arranged on the end part of the extruding section; the distributing section is of a cylinder structure; at least two arc-shaped holes symmetrically distributed along the toroidal direction are arranged in the distributing section; the inner edges of the arc-shaped holes are not higher than a connecting edge of the feeding section and the distributing section while the outer edges of the arc-shaped holes are higher than the connecting edge of the feeding section and the distributing section; the transition section is formed by combining a plurality of cylinders and a circular table; and a spiral groove is arranged on the outer wall of the extruding section. The invention is suitable for producing special PVC (polyvinyl chloride) breathing masks for medical purposes.
Description
Technical field
The present invention relates to the technical field of breathing mask production equipment, be meant a kind of die head that is used to make breathing mask especially.
Background technology
Breathing mask cooperates equipment uses such as oxygen when being the help patient respiration, raw material is special PVC (polyvinyl chloride) material in medical, the PVC material is a kind of amorphism material, has low flammability, high strength, weatherability variability and good geometrical stability.
During the breathing mask making, the PVC material is extruded the back through screw extruder and is formed the PVC material base, enters die head then, after through die head the PVC material base being plastified, enters mould molding again.Present employed die head is connected and composed by pan feeding section, changeover portion and extruding zone mostly, wherein the pan feeding section is a conical structure, changeover portion and extruding zone are combined by some cylinders and round platform respectively, the outer wall slyness of whole die head, the inside of die head is provided with gas circuit, the air inlet of gas circuit is arranged on the outer wall of die head, and the gas outlet of gas circuit is arranged on the end of extruding zone.During use, die head is placed in the outer cylinder body, and the inwall of outer cylinder body matches with the outer wall of die head and exists runner, PVC material base to flow in runner each other and plastifies, in gas circuit, blow simultaneously, thereby the PVC material base can be bonded together in the end of extruding zone.
Above-mentioned die head is in the common PE of plasticizing, PP raw material, because thicker (the general wall thickness 〉=1mm) of the product wall thickness that is processed into of common raw materials such as PE, PP, so present employed die head is because its runner internal pressure is limited, its precision that can control wall thickness is approximately 0.1mm-0.15mm, and the thinnest part of medical special PVC breathing mask only is 0.05mm, present employed die head require wall thickness even again, so can't be produced qualified product.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of and can improve the runner internal pressure, thereby can produce the die head that is used to make breathing mask of medical special PVC breathing mask.
For addressing the above problem, the technical solution used in the present invention is: the die head that is used to make breathing mask, comprise pan feeding section, dispensing section, changeover portion and extruding zone, the pan feeding section is a conical structure, described dispensing section is a cylindrical structure, be provided with at least two arcuate sockets that are symmetrically distributed along hoop in the dispensing section, the inner edge of arcuate socket is not higher than the edge that is connected of pan feeding section and dispensing section, and the outer rim of arcuate socket is higher than the edge that is connected of pan feeding section and dispensing section; Described changeover portion is combined by some cylinders and round platform; The outer wall of described extruding zone is provided with helical groove.
Be provided with two sections helical grooves in the outside of described extruding zone, be provided with the storing section between two sections helical grooves, the storing section is a cylindrical structure.
Described arcuate socket is a circular hole, is provided with two circular holes that distribute along circular symmetric in the dispensing section, and the inner edge of circular hole flushes with the edge that is connected of dispensing section with the pan feeding section.
The air inlet of described gas circuit is arranged on the outer wall of dispensing section.
The invention has the beneficial effects as follows: the die head of breathing mask is made in above-mentioned being used to, and adopts special flow passage structure, thereby makes the PVC material base at the more present employed die head of runner internal pressure bigger improvement be arranged, thereby can produce medical special PVC breathing mask.
Description of drawings
Fig. 1 is the structural representation that the present invention is used to make the die head of breathing mask;
Fig. 2 is the sectional structure schematic diagram of A-A direction among Fig. 1;
Fig. 3 is the user mode schematic diagram that the present invention is used to make the die head of breathing mask;
Among the figure: 1, pan feeding section, 2, dispensing section, 3, changeover portion, 4, extruding zone, 5, gas circuit, 51, air inlet, 52, gas outlet, 6, circular hole, 7, first helical groove, 8, second helical groove, 9, storing section, 10, outer cylinder body, 11, runner, 12, the discharge nozzle of extruder, 13, inflatable bar.
The specific embodiment
Below by specific embodiment the die head that the present invention is used to make breathing mask is described in further detail.
As shown in Figure 1, be used to make the die head of breathing mask, comprise pan feeding section 1, dispensing section 2, changeover portion 3 and extruding zone 4, pan feeding section 1 is a conical structure, the inside of die head is provided with gas circuit 5, the air inlet 51 of gas circuit 5 is arranged on the outer wall of dispensing section 2, the gas outlet 52 of gas circuit 5 is arranged on the end of extruding zone 4, described dispensing section 2 is a cylindrical structure, as shown in Figure 2, be provided with two circular holes 6 that are symmetrically distributed along hoop in the dispensing section 2, the inner edge of circular hole 6 flushes with the edge that is connected of dispensing section 2 with pan feeding section 1; Described changeover portion 3 is combined by some cylinders and round platform; The outer wall of described extruding zone 4 is provided with between first helical groove 7 and second helical groove, 8, the first helical grooves 7 and second helical groove 8 and is provided with storing section 9, and storing section 9 is a cylindrical structure.
Operation principle of the present invention is: as shown in Figure 3, during use, die head is placed in the outer cylinder body 10, the inwall of outer cylinder body 10 matches with the outer wall of die head and has runner 11 each other, the top of outer cylinder body 10 is connected with the discharge nozzle of extruder 12, the sidewall of outer cylinder body 10 is provided with inflatable bar 13, and inflatable bar 13 is connected with the air inlet 51 of gas circuit 5.The PVC material base enters the runner 11 from the discharge nozzle 12 of extruder, pan feeding section 1 beginning pan feeding from die head, be divided into two by two circular holes 6 at dispensing section 2 PVC of place material bases, thereby can make the PVC material base more even, two strands of PVC material bases are flowed through and are entered extruding zone 4 behind the changeover portion 3, first helical groove, 7 places at extruding zone 4, PVC material base inside has increased a large amount of pressure in the first spiral helicine groove 7, obtained once making up the difference, make PVC material base pressure everywhere more even, the PVC material base that comes out from first helical groove 7 is stored in the little storing space of storing section 9 formation, the full back of storage PVC material base continues to flow downward to second helical groove, 8 places, the PVC material base has been subjected to pressure fully and uniformly for the second time in the second spiral helicine groove 8, made up the difference again, make the wall thickness of PVC material base more even, thereby guarantee the PVC material base error≤0.01mm of wall thickness all around.When the PVC material base was extruded from extruding zone 4 ends, inflatable bar 13 was blown in gas circuit 5, thereby the PVC material base can be bonded together in the end of extruding zone 4.
The above embodiments are the principle and the effect thereof of illustrative the invention only, and the embodiment of part utilization, but not is used to limit the present invention; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (5)
1. be used to make the die head of breathing mask, comprise pan feeding section, dispensing section, changeover portion and extruding zone, the pan feeding section is a conical structure, the inside of die head is provided with gas circuit, the air inlet of gas circuit is arranged on the outer wall of die head, the gas outlet of gas circuit is arranged on the end of extruding zone, it is characterized in that: described dispensing section is a cylindrical structure, be provided with at least two arcuate sockets that are symmetrically distributed along hoop in the dispensing section, the inner edge of arcuate socket is not higher than the edge that is connected of pan feeding section and dispensing section, and the outer rim of arcuate socket is higher than the edge that is connected of pan feeding section and dispensing section; Described changeover portion is combined by some cylinders and round platform; The outer wall of described extruding zone is provided with helical groove.
2. the die head that is used to make breathing mask according to claim 1 is characterized in that: be provided with two sections helical grooves in the outside of described extruding zone, be provided with the storing section between two sections helical grooves, the storing section is a cylindrical structure.
3. the die head that is used to make breathing mask according to claim 1 and 2 is characterized in that: described arcuate socket is a circular hole, is provided with two circular holes that distribute along circular symmetric in the dispensing section.
4. the die head that is used to make breathing mask according to claim 3 is characterized in that: the inner edge of described circular hole flushes with the edge that is connected of dispensing section with the pan feeding section.
5. the die head that is used to make breathing mask according to claim 1 and 2 is characterized in that: the air inlet of described gas circuit is arranged on the outer wall of dispensing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101464442A CN102218808B (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing breathing mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101464442A CN102218808B (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing breathing mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102218808A true CN102218808A (en) | 2011-10-19 |
| CN102218808B CN102218808B (en) | 2013-01-30 |
Family
ID=44775639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101464442A Expired - Fee Related CN102218808B (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing breathing mask |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102218808B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403268A (en) * | 2002-10-04 | 2003-03-19 | 青岛绿华塑料机械有限公司 | Spiral hollow-wall pipe with two flat walls and its once extruding production line |
| CN1586866A (en) * | 2004-09-28 | 2005-03-02 | 杭州波达塑业有限公司 | Process for producing large caliber hard polyvinyl chloride double wall corrugated pipe |
| CN2715970Y (en) * | 2004-07-15 | 2005-08-10 | 金德管业集团有限公司 | Laminated type co-extrusion die for producing rigid polyvinyl chloride pipe |
| CN101229680A (en) * | 2008-02-19 | 2008-07-30 | 张家港市同创机械有限公司 | Die head of canulate forming machine |
| CN101579915A (en) * | 2008-05-14 | 2009-11-18 | 甘肃比高塑胶电气有限公司 | Pre-setting supporting assembling die for plastic extruder |
| CN101837631A (en) * | 2009-12-02 | 2010-09-22 | 上海上塑控股（集团）有限公司 | Polyvinyl chloride pipe co-extrusion mould |
| CN202123635U (en) * | 2011-06-02 | 2012-01-25 | 张家港市同创机械有限公司 | Die head for manufacturing respiratory masks |
-
2011
- 2011-06-02 CN CN2011101464442A patent/CN102218808B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1403268A (en) * | 2002-10-04 | 2003-03-19 | 青岛绿华塑料机械有限公司 | Spiral hollow-wall pipe with two flat walls and its once extruding production line |
| CN2715970Y (en) * | 2004-07-15 | 2005-08-10 | 金德管业集团有限公司 | Laminated type co-extrusion die for producing rigid polyvinyl chloride pipe |
| CN1586866A (en) * | 2004-09-28 | 2005-03-02 | 杭州波达塑业有限公司 | Process for producing large caliber hard polyvinyl chloride double wall corrugated pipe |
| CN101229680A (en) * | 2008-02-19 | 2008-07-30 | 张家港市同创机械有限公司 | Die head of canulate forming machine |
| CN101579915A (en) * | 2008-05-14 | 2009-11-18 | 甘肃比高塑胶电气有限公司 | Pre-setting supporting assembling die for plastic extruder |
| CN101837631A (en) * | 2009-12-02 | 2010-09-22 | 上海上塑控股（集团）有限公司 | Polyvinyl chloride pipe co-extrusion mould |
| CN202123635U (en) * | 2011-06-02 | 2012-01-25 | 张家港市同创机械有限公司 | Die head for manufacturing respiratory masks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102218808B (en) | 2013-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202915032U (en) | Wood plastic section bar and extrusion mold used for manufacturing the same | |
| EP3889057A1 (en) | Synthetic resin container, and method for producing synthetic resin container | |
| CN202123635U (en) | Die head for manufacturing respiratory masks | |
| CN102218808B (en) | Die head for manufacturing breathing mask | |
| CN202037856U (en) | Bottom cooling water way structure of bottle blowing mould of high-speed blowing and filling machine | |
| CN206663849U (en) | The mo(u)ld bottom half mould of given shape Product processing | |
| CN201820525U (en) | Plastic extrusion moulding die used for wire and cable production and capable of realizing double-layered coextrusion | |
| CN101837631B (en) | Polyvinyl chloride pipe co-extrusion mould | |
| CN106182490A (en) | A kind of manufacture device of chinampa hollow particle | |
| CN211221695U (en) | HDPE double-wall corrugated pipe forming die | |
| CN212684485U (en) | Cooling air ring and cooling water ring of plastic film blowing machine | |
| CN2670096Y (en) | Double-layer composite spiral head die of blow molding apparatus | |
| CN204083379U (en) | Multi-functional valve | |
| CN111216335A (en) | Inner-tube inner-separating agent spraying device | |
| CN200995470Y (en) | Rectifier for expander or extruder | |
| CN206536862U (en) | A kind of bellows and corrugated pipe production equipment | |
| CN205767374U (en) | PVC large-scale distribution trough mould | |
| CN203680782U (en) | Transition ring for connecting plastic extruder with die head | |
| CN108527811A (en) | A kind of multi-functional pipe extruder head | |
| CN213471955U (en) | Natural latex mattress forming die | |
| CN204377887U (en) | A kind of for the nozzle in wide powder machine | |
| CN204414567U (en) | A kind of mouth mould of blow mold | |
| CN205238508U (en) | Muscle spiral hose production line is moulded to PVC fibre bilayer | |
| CN106739114A (en) | The mo(u)ld bottom half mould of given shape Product processing | |
| CN213593570U (en) | Double-deck room pipe mould of PVC of easily changing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20140602 |