CN202123635U - Die head for manufacturing respiratory masks - Google Patents
Die head for manufacturing respiratory masks Download PDFInfo
- Publication number
- CN202123635U CN202123635U CN2011201830317U CN201120183031U CN202123635U CN 202123635 U CN202123635 U CN 202123635U CN 2011201830317 U CN2011201830317 U CN 2011201830317U CN 201120183031 U CN201120183031 U CN 201120183031U CN 202123635 U CN202123635 U CN 202123635U
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- CN
- China
- Prior art keywords
- section
- die head
- gas circuit
- breathing mask
- pan feeding
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- Expired - Fee Related
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a die head for manufacturing respiratory masks, which comprises a feeding section, a distribution section, a transition section and an extruding section. The feeding section is a cone structure, a gas circuit is arranged in the die head, a gas inlet of the gas circuit is arranged on the outer wall of the die head, a gas outlet of the gas circuit is arranged at an end of the extruding section, the distribution section is a cylinder structure, at least two arc-shaped holes which are annularly and symmetrically distributed are arranged in the distribution section, inner edges of the arc-shaped holes are not higher than connecting edges of the feeding section and the distribution section, outer edges of the arc-shaped holes are higher than connecting edges of the feeding section and the distribution section, a plurality of cylinders and circular truncated cones are combined to form the transition section, and a spiral groove is arranged on the outer wall of the extruding section. The die head is applicable to producing special medical PVC (polyvinyl chloride) respiratory masks.
Description
Technical field
The utility model relates to the technical field of breathing mask production equipment, is 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 property, weather 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, gets into die head then, after through die head the PVC material base being plastified, gets into 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, and the outer wall of whole die head is slick and sly, and the set inside of die head has 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 in runner, to flow 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 raw materials such as common PE, PP are processed into; So present employed die head is because its runner internal pressure is limited, and its precision that can control wall thickness is approximately 0.1mm-0.15mm, and the thinnest part of medical special PVC breathing mask is merely 0.05mm; Present employed die head require wall thickness even again, so can't be produced qualified product.
The utility model content
The utility model technical problem to be solved 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 scheme that the utility model adopts is: 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; Said 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 adjoining edge of pan feeding section and dispensing section, and the outer rim of arcuate socket is higher than the adjoining edge of pan feeding section and dispensing section; Said changeover portion is combined by some cylinders and round platform; The outer wall of said extruding zone is provided with helical groove.
Be provided with two sections helical grooves in the outside of said extruding zone, be provided with the storing section between two sections helical grooves, the storing section is a cylindrical structure.
Said arcuate socket is a circular hole, is provided with two circular holes that distribute along circular symmetric in the dispensing section, and the adjoining edge of the inner edge of circular hole and pan feeding section and dispensing section flushes.
The air inlet of said gas circuit is arranged on the outer wall of dispensing section.
The beneficial effect of the utility model is: 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 arranged, thereby can produce medical special PVC breathing mask.
Description of drawings
Fig. 1 is the structural representation that the utility model is used to make the die head of breathing mask;
Fig. 2 is the sectional structure sketch map of A-A direction among Fig. 1;
Fig. 3 is the user mode sketch map that the utility model 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, the gas outlet, 6, circular hole; 7, first helical groove, 8, second helical groove, 9, the storing section, 10, outer cylinder body; 11, runner, 12, the discharge nozzle of extruder, 13, inflatable bar.
The specific embodiment
Through specific embodiment the utility model is used to make further detailed description the in detail of die head work of breathing mask below.
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 set inside of die head has gas circuit 5, and the air inlet 51 of gas circuit 5 is arranged on the outer wall of dispensing section 2, and the gas outlet 52 of gas circuit 5 is arranged on the end of extruding zone 4; Said 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 and pan feeding section 1 flush with the adjoining edge of dispensing section 2; Said changeover portion 3 is combined by some cylinders and round platform; The outer wall of said 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.
The operation principle of the utility model is: as shown in Figure 3; During use; Die head is placed in the outer cylinder body 10, and the inwall of outer cylinder body 10 matches with the outer wall of die head and has runner 11 each other, and 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 gets into the runner 11 from the discharge nozzle 12 of extruder, and the pan feeding section 1 beginning pan feeding from die head is 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 changeover portion 3 backs of flowing through get into extruding zones 4, and at first helical groove, 7 places of 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, and the full back of storage PVC material base continues to flow downward to second helical groove, 8 places; The PVC material base has received 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 guaranteed 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 utility model; Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model creation design, can also make some distortion and improvement, these all belong to the protection domain of the utility model.
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, and the set inside of die head has 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: said dispensing section is a cylindrical structure, is 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 adjoining edge of pan feeding section and dispensing section, and the outer rim of arcuate socket is higher than the adjoining edge of pan feeding section and dispensing section; Said changeover portion is combined by some cylinders and round platform; The outer wall of said 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 said 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: said 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 adjoining edge of the inner edge of said circular hole and pan feeding section and dispensing section flushes.
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 said gas circuit is arranged on the outer wall of dispensing section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201830317U CN202123635U (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing respiratory masks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201830317U CN202123635U (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing respiratory masks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202123635U true CN202123635U (en) | 2012-01-25 |
Family
ID=45486706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201830317U Expired - Fee Related CN202123635U (en) | 2011-06-02 | 2011-06-02 | Die head for manufacturing respiratory masks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202123635U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218808A (en) * | 2011-06-02 | 2011-10-19 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
-
2011
- 2011-06-02 CN CN2011201830317U patent/CN202123635U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218808A (en) * | 2011-06-02 | 2011-10-19 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
| CN102218808B (en) * | 2011-06-02 | 2013-01-30 | 张家港市同创机械有限公司 | Die head for manufacturing breathing mask |
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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: 20120125 Termination date: 20140602 |