CN101693400B - Production process and production mold for self-destruction safety syringe rubber plug - Google Patents
Production process and production mold for self-destruction safety syringe rubber plug Download PDFInfo
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- CN101693400B CN101693400B CN 200910211103 CN200910211103A CN101693400B CN 101693400 B CN101693400 B CN 101693400B CN 200910211103 CN200910211103 CN 200910211103 CN 200910211103 A CN200910211103 A CN 200910211103A CN 101693400 B CN101693400 B CN 101693400B
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Abstract
The invention provides a production process and a production mold for a self-destruction safety syringe rubber plug, which belong to the technical field of medical apparatus and solve the problems that the surface of a piston produced by a production mold of an existing syringe rubber piston has burrs and fins, an existing method for manufacturing the rubber plug is not easy to be operated, and processing working procedures are complex. The production process of the self-destruction safety syringe rubber plug is characterized in that one end of the cylindrical rubber plug is provided with a containing hole for being fixedly connected with a syringe rod; the other end of the rubber plug is provided with a top portion; the top portion is provided with a pass-through hole which is communicated with the containing hole and for a rod head of the syringe rod to pass through; the production process includes the following steps: A feeding; B molding; C obtaining finished products. The processing working procedures are simple, processing is convenient, and the fins can be effectively removed.
Description
Technical field
The invention belongs to technical field of medical instruments, relate to a kind of syringe rubber plug production technology and production mould, particularly a kind of production technology of self-destroy safety injector plug and production mould.
Background technology
Cause the cross infection of virus for fear of using antihygienic syringe, disposable syringe is widely used in field of medical technology.At present, type self-destroyed, safe syringe is various in style, but all use inconveniently because of it, when after having injected Tip protection being covered back stitching, stab easily medical personnel, thereby cause germ to jeopardize medical personnel.And present type self-destroyed, safe syringe is in the processing technology of plug, and its processing technology is complicated, and the plug qualification rate of producing is not high.Moreover the mould that is used for plug production can not be produced by batch, and this production is quite taken a lot of trouble.
For this reason, people have proposed various solutions through long-term exploration, and wherein also some has applied for patent.As Chinese patent disclose a kind of pharmaceutical injection device piston blocking take and manufacturing method and apparatus [Granted publication number as: CN1487873A], it have one in the use location in the face of the contents of your pipe of syringe tube or Kapp, by the plug section that a kind of inert membrane's cap shape surrounds, this plug section leans on syringe tube or Kapp that pipe by its inert membrane.The piston blocking has the seal section of the not coating of a described plug section of adjacency.It also relates to a kind of apparatus and method for the manufacture of this piston blocking in addition.Unvulcanized rubber slab put in the mould with the inert membrane and formed by layered structural member under the pressure and temperature effect except have one be retained in the mould parting surface, the side stretches out the profile of the complete piston blocking the overlap of piston blocking.The cavity that holds of stopper rod enters into the plug section of being surrounded by inert membrane's cap shape always.Squeeze described holding in the cavity around the seal section wall zone that holds cavity.Then by a die-cut process, the piston blocking is separated with overlap, wherein seal section form one around, the seal area that is close to the inert membrane edge that surrounds the plug section.
The pharmaceutical injection device piston blocking of obvious this structure, its in use syringe needle can not be pulled back in the injection tube, when after medical personnel are injecting, Tip protection being covered back stitching, stabbed easily.And this piston blocking surface inevitably can produce overlap and burr, and overlap and burr can be followed transfusion fluid and entered in the human body during use, and human body is caused serious negative effect.Moreover, too complicated for the manufacture of the device of this piston blocking, and for the manufacture of the method for this piston blocking be not easy to operation, manufacturing procedure is complicated.
Summary of the invention
The objective of the invention is to have the problems referred to above for existing technology, proposed that a kind of manufacturing procedure is simple, the self-destroy safety injector plug production technology of easy operating, high efficiency.
Another object of the present invention provides a kind of self-destroy safety injector plug and mould that can effectively remove overlap, easy to process and reasonable in design.
Purpose of the present invention can realize by following technical proposal: a kind of self-destroy safety injector plug production technology, this plug is cylindric, one end of plug has be used to the accommodation hole that connects firmly injection rod, the other end has the top, have at the top and to connect with accommodation hole and pass through the hole for what the bar head of injection rod passed, it is characterized in that this production technology comprises the steps:
A, material loading: take and do not vulcanize and have certain thickness sheet elastomeric material, elastomeric material is placed between punch and the die, then punch is fastened and is fixed with die and be in the same place, elastomeric material is clamped between punch and the die;
B, moulding: will accompany the punch of elastomeric material and die and be placed on and carry out vulcanizing treatment in the vulcanization plant, elastomeric material is full of by punch and die fastens the die cavity that forms, obtain the plug blank after the demoulding, this plug blank is cylindric, have accommodation hole at the one end, the other end has the top, has the hole of passing through at the top, the inner shutoff of passing through the hole has the column that extends to accommodation hole, has featheredge at the sidepiece of plug blank;
C, finished product: remove column, connect thereby make accommodation hole and pass through the hole, excise simultaneously featheredge, make plug.
In above-mentioned self-destroy safety injector plug production technology, in above-mentioned steps A, described punch has several and is fixed on the convex template by demountable structure respectively, described die has several and is fixed on the concave template by demountable structure respectively, each punch and die all are array distribution, and punch and one by one corresponding setting of die when fastening convex template and concave template.
The purpose that arranges like this is, can process simultaneously a plurality of self-destroy safety injector plugs, and the single self-destroy safety injector plug operating efficiency of processing is higher separately, can save production cost simultaneously, and the product quality of producing is better.
In above-mentioned self-destroy safety injector plug production technology, in above-mentioned steps A, the pressure when described punch and die fasten and compress is 160-180MPa.Here preferred pressure is 170MPa.
In above-mentioned self-destroy safety injector plug production technology, in above-mentioned step B, curing temperature is 140-180 ℃, and cure time is 2-5 minute, and preferred cure time is 3 minutes.
Curing temperature described here refers to be placed on temperature when carrying out vulcanizing treatment in the vulcanization plant with accompanying the punch of elastomeric material and die, and curing temperature is unsuitable too high, too high can excessive melting rubber, rubber stopper is formed certain influence; Curing temperature also should not be excessively low, do not reach the fusion point of rubber, and rubber just is difficult for sulfuration.Curing temperature generally get 160 ℃ more suitable.
In above-mentioned self-destroy safety injector plug production technology, in above-mentioned step C, described column is removed by die-cut mode, and described featheredge is removed by die-cut mode.
In above-mentioned self-destroy safety injector plug production technology, the sidepiece of described plug blank has some arc bulge loops, and described each plug blank is being linked together by featheredge.
Above-mentioned self-destroy safety injector plug production technology is finished in following self-destroy safety injector plug and mould:
A kind of self-destroy safety injector plug and mould, comprise die and the punch that can mutually fasten, it is characterized in that, described die has cylindrical cavity, the curved lever that has projection in the bottom centre of die, described punch center have the cylindrical shell of projection, when die and punch fastening, the corresponding setting with cylindrical shell of above-mentioned curved lever, described cylindrical shell insert in the cavity and curved lever partial insertion cylindrical shell in.
This self-destroy safety injector of the main moulding of curved lever plug of die bottom centre pass through the hole, the cylindrical shell of punch internal projection is used for moulding and is positioned at that to pass through the hole inner and extend to the column of accommodation hole.When die and punch fastened, the curved lever of die bottom centre was corresponding one by one with the cylindrical shell at punch center, and the cylindrical shell at punch center inserts in the interior and curved lever partial insertion cylindrical shell of cavity.Mould Machining syringe rubber plug out with this structure can reduce the overlap that plug in use occurs greatly, can not have a negative impact to human body.
In above-mentioned self-destroy safety injector plug and mould, this mould also comprises convex template and concave template, on convex template, be fixed with several above-mentioned punch by demountable structure, describedly on concave template, be fixed with several above-mentioned dies by demountable structure, each punch and die all are array distribution, and punch and one by one corresponding setting of die when fastening convex template and concave template.
The purpose that arranges like this is that punch and convex template removably connect, and die and concave template removably connect, and after punch or die are damaged, can take out punch separately or die repairs or replaces.Thereby avoided needing to change because of the damage of a punch or die the situation of whole secondary mould.Be removably connected with a plurality of punch on the convex template, be removably connected with a plurality of dies on the concave template, and die and one by one corresponding setting of punch.So just can reach and can process simultaneously a plurality of self-destroy safety injector plugs, one-shot forming is a plurality of, and the single self-destroy safety injector plug operating efficiency of processing is higher separately, can save production cost simultaneously, and the product quality of producing is better.
In above-mentioned self-destroy safety injector plug and mould, be provided with the fixed structure that both are fixed together between described convex template and the concave template, link by helicitic texture between described punch and the convex template, link by helicitic texture between described die and the concave template.Usually, can locating hole be set at the edge of convex template, at the edge of concave template locating dowel be set, locating dowel and locating hole are complementary, and when locating dowel cooperated with locating hole, die and punch were opposed one by one, thereby realized that easily the quick, accurate of die and punch fastens.The relative fixation with concave template of convex template, the quality of the plug that guarantee processes at every turn, the situation of also having avoided simultaneously each process all will proofread and correct mould.The fixed structure here adopts clip, make the relative fixation with concave template of convex template, and it is more firm to be threaded, and can guarantee the stability of process convex mould and die.
In above-mentioned self-destroy safety injector plug and mould, the cavity bottom of described die is tapered, has the cannelure of the circular arc of some axial distribution at the inwall of die; The cylindrical shell top of described punch has the annular convex ring of protrusion.
Compared with prior art, beneficial effect of the present invention is:
1, owing to is provided with the cylindrical shell of projection at punch, and be provided with curved lever in the center of die, its top of the plug that processes does not need to carry out the die-cut just energy straight forming of reprocessing technique that waits, avoided like this at plug top generation overlap and burr etc., when penetrating this plug with syringe, syringe stem can not be brought into the overlap on the plug and burr in the transfusion fluid, can not exert an influence to human body.
2, because punch and die all are detachably connected on respectively on convex template and the concave template, can produce simultaneously a plurality of syringe rubber plugs adding man-hour one mould like this, more with regard to the syringe rubber plug of producing in the identical time, can significantly save process time.And the mould of the structure that removably connects, replacing and maintenance are all more convenient.
3, owing to adopt the mode of extrusion modling that the self-destroy safety injector plug is processed, Effective Raise the processing performance of self-destroy safety injector plug, and easy and simple to handle, the high efficiency of simple, the whole operating process of manufacturing procedure.
Description of drawings
Fig. 1 is the structural representation that punch provided by the invention is fixed on convex template.
Fig. 2 is the structural representation that die provided by the invention is fixed on concave template.
Structural representation when Fig. 3 is convex template provided by the invention and concave template matched moulds.
Fig. 4 is the exploded perspective view of part-structure provided by the invention.
Cutaway view when Fig. 5 is punch provided by the invention and die matched moulds.
Fig. 6 is the structural representation of plug blank provided by the invention.
The cutaway view of part-structure when Fig. 7 is punch provided by the invention and die matched moulds.
Fig. 8 is the cutaway view of plug provided by the invention.
Among the figure, 1, plug; 11, accommodation hole; 12, pass through the hole; 13, column; 14, featheredge; 15, arc bulge loop; 2, punch; 21, cylindrical shell; 22, annular convex ring; 3, die; 31, cavity; 32, curved lever; 33, cannelure; 4, elastomeric material; 5, convex template; 6, concave template; 7, locating hole; 8, locating dowel; 9, clip.
The specific embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1 and Figure 2, this self-destroy safety injector plug and mould, comprise convex template 5 and the concave template 6 that can mutually fasten, on convex template 5, be fixed with several punch that is array distribution 2 by demountable structure, on concave template 6, be fixed with several dies that is array distribution 3 by demountable structure, as shown in Figure 3, punch 2 and die 3 are corresponding one by one when convex template 5 snaps together mutually with concave template 6.At the edge of convex template 5 locating hole 7 is set, at the edge of concave template 6 locating dowel 8 is set, locating dowel 8 is complementary with locating hole 7, and when locating dowel 8 cooperates with locating hole 7, die 3 and punch 2 are opposed one by one, thus convenient quick, the accurate fastening of realizing die 3 and punch 2.As shown in Figure 3, between convex template 5 and concave template 6, be provided with the clip 9 that both are fixed together.
As shown in Figure 3, be provided with the fixed structure that both are fixed together between the convex template 5 of this self-destroy safety injector plug and mould and the concave template 6; As shown in Figure 7, link by helicitic texture between punch 2 and the convex template 5, link by helicitic texture between die 3 and the concave template 6.
As shown in Figure 1, 2, die 3 has its tapered cylindrical cavity 31 in bottom, and the cannelure 33 that has the circular arc of two axial distribution at the inwall of die 3, the curved lever 32 that has projection in the bottom centre of die 3; Punch 2 centers have the cylindrical shell 21 of projection, have the annular convex ring 22 of protrusion at cylindrical shell 21 tops.As shown in Figure 5, when die 3 and punch 2 fastening, the cylindrical shell 21 corresponding settings at the curved lever 32 of die 3 bottom centre and punch 2 centers, the cylindrical shell 21 at punch 2 centers insert in the cavity 31 of die 3 and in the cylindrical shell 21 at curved lever 32 partial insertion punch 2 centers of die 3 bottom centre.
As shown in Figure 8, plug 1 is cylindric, and an end of plug 1 has be used to the accommodation hole 11 that connects firmly injection rod, and the other end has the top, has at the top to connect with accommodation hole 11 and pass through hole 12 for what the bar head of injection rod passed.
The processing of self-destroy safety injector plug can be made according to following technique:
A, material loading: take and do not vulcanize and have certain thickness sheet elastomeric material 4, elastomeric material 4 is placed between punch 2 and the die 3, then punch 2 is fastened and is fixed with die 3 and be in the same place, elastomeric material 4 is clamped between punch 2 and the die 3;
B, moulding: will accompany the punch 2 of elastomeric material 4 and die 3 and be placed on and carry out vulcanizing treatment in the vulcanization plant, elastomeric material 4 is full of by punch 2 and die 3 fastens the die cavity that forms, obtain the plug blank after the demoulding, this plug blank is cylindric, have accommodation hole 11 at the one end, the other end has the top, has the hole of passing through 12 at the top, the inner shutoff of passing through hole 12 has the column 13 that extends to accommodation hole 11, has featheredge 14 at the sidepiece of plug blank;
C, finished product: remove column 13, connect thereby make accommodation hole 11 and pass through hole 12, excise simultaneously featheredge 14, make plug.
In the steps A of processing technology, can better moulding in order to make plug, the pressure when punch 2 and die 3 fasten and compress is between 160-180MPa, and the pressure when this processing technology convex mould 2 and die 3 fasten and compress is 170MPa.
In the step B of this processing technology, in order to allow rubber better vulcanize, its curing temperature is between 140-180 ℃.Take generally speaking 160 ℃ as the curing temperature of this processing technology, cure time is 2-5 minute, and preferred cure time is 3 minutes.
In step C, remove column 13 by die-cut mode, connect thereby make accommodation hole 11 and pass through hole 12, remove featheredge 14 by die-cut mode simultaneously, make plug.
Shown in Fig. 6,7, when the product of producing in whole processing technology was not die-cut, the sidepiece of plug blank had some arc bulge loops 15, and each plug blank is linked together by featheredge 14.
Specific embodiment described herein only is to the explanation for example of the present invention's spirit.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the possibility of using other term do not got rid of in the terms such as this paper has more used plug 1, accommodation hole 11, passes through hole 12, column 13, featheredge 14, arc bulge loop 15, punch 2, cylindrical shell 21, annular convex ring 22, die 3, cavity 31, curved lever 32, cannelure 33, elastomeric material 4, convex template 5, concave template 6.Using these terms only is in order to describe more easily and explain essence of the present invention; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (10)
1. self-destroy safety injector plug and mould, comprise die (3) and the punch (2) that can mutually fasten, it is characterized in that, described die (3) has cylindrical cavity (31), the curved lever (32) that has projection in the bottom centre of die (3), described punch (2) center has the cylindrical shell (21) of projection, when die (3) and punch (2) fastening, above-mentioned curved lever (32) and the corresponding setting of cylindrical shell (21), described cylindrical shell (21) insert in the cavity (31) and curved lever (32) partial insertion cylindrical shell (21) in.
2. self-destroy safety injector plug and mould according to claim 1, it is characterized in that, this mould also comprises convex template (5) and concave template (6), upward be fixed with several above-mentioned punch (2) by demountable structure at convex template (5), described going up at concave template (6) is fixed with several above-mentioned dies (3) by demountable structure, each punch (2) and die (3) all are array distribution, and punch (2) and one by one corresponding setting of die (3) when fastening convex template (5) and concave template (6).
3. self-destroy safety injector plug and mould according to claim 2, it is characterized in that, be provided with the fixed structure that both are fixed together between described convex template (5) and the concave template (6), link by helicitic texture between described punch (2) and the convex template (5), link by helicitic texture between described die (3) and the concave template (6).
4. according to claim 1 and 2 or 3 described self-destroy safety injector plug and moulds, it is characterized in that cavity (31) bottom of described die (3) is tapered, the cannelure (33) that has the circular arc of some axial distribution at the inwall of die (3); Cylindrical shell (21) top of described punch (2) has the annular convex ring (22) of protrusion.
5. technique that adopts mould claimed in claim 1 to produce the self-destroy safety injector plug, this plug (1) is cylindric, one end of plug (1) has be used to the accommodation hole that connects firmly injection rod (11), the other end has the top, have at the top and to connect with accommodation hole (11) and pass through hole (12) for what the bar head of injection rod passed, it is characterized in that this production technology comprises the steps:
A, material loading: take and do not vulcanize and have a certain thickness sheet elastomeric material (4), elastomeric material (4) is placed between punch (2) and the die (3), then punch (2) and die (3) are fastened and are fixed together, elastomeric material (4) is clamped between punch (2) and the die (3);
B, moulding: will accompany the punch (2) of elastomeric material (4) and die (3) and be placed on and carry out vulcanizing treatment in the vulcanization plant, elastomeric material (4) is full of by punch (2) and die (3) fastens the die cavity that forms, obtain the plug blank after the demoulding, this plug blank is cylindric, has accommodation hole (11) at the one end, the other end has the top, has the hole of passing through (12) at the top, the inner shutoff of passing through hole (12) has the column (13) that extends to accommodation hole (11), has featheredge (14) at the sidepiece of plug blank;
C, finished product: remove column (13), connect thereby make accommodation hole (11) and pass through hole (12), excise simultaneously featheredge (14), make plug (1).
6. self-destroy safety injector plug production technology according to claim 5, it is characterized in that, in above-mentioned steps A, described punch (2) has several and is fixed on the convex template (5) by demountable structure respectively, described die (3) has several and is fixed on the concave template (6) by demountable structure respectively, each punch (2) and die (3) all are array distribution, and punch (2) and one by one corresponding setting of die (3) when fastening convex template (5) and concave template (6).
7. self-destroy safety injector plug production technology according to claim 5 is characterized in that, in above-mentioned steps A, the pressure when described punch (2) and die (3) fasten and compress is 160-180npa.
8. according to claim 5 or 6 or 7 described self-destroy safety injector plug production technologies, it is characterized in that in above-mentioned step B, curing temperature is 140-180 ℃, cure time is 2-5 minute.
9. self-destroy safety injector plug production technology according to claim 6 is characterized in that, in above-mentioned step C, described column (13) is removed by die-cut mode, and described featheredge (14) is removed by die-cut mode.
10. self-destroy safety injector plug production technology according to claim 6 is characterized in that, the sidepiece of described plug blank has some arc bulge loops (15), and described each plug blank is being linked together by featheredge (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910211103 CN101693400B (en) | 2009-11-05 | 2009-11-05 | Production process and production mold for self-destruction safety syringe rubber plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910211103 CN101693400B (en) | 2009-11-05 | 2009-11-05 | Production process and production mold for self-destruction safety syringe rubber plug |
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| Publication Number | Publication Date |
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| CN101693400A CN101693400A (en) | 2010-04-14 |
| CN101693400B true CN101693400B (en) | 2013-03-20 |
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| CN 200910211103 Active CN101693400B (en) | 2009-11-05 | 2009-11-05 | Production process and production mold for self-destruction safety syringe rubber plug |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890775B (en) * | 2010-06-17 | 2013-06-05 | 徐雪花 | Mold for rubber plug in safe self-destructive syringe |
| CN102765157B (en) * | 2011-05-03 | 2015-04-08 | 杭州藤仓橡胶有限公司 | Rubber product flash press-cutting tool |
| CN103072301B (en) * | 2013-01-30 | 2015-02-25 | 台州万洲机械有限公司 | Die of phenolic piston and manufacture method of phenolic piston |
| CN111136874B (en) * | 2018-11-05 | 2021-10-29 | 苏州市朗腾工贸有限公司 | Preparation device and processing technology of medical syringe rubber plug elastic material |
| CN111037891B (en) * | 2019-12-09 | 2021-10-19 | 衢州学院 | A continuity forming device for tennis hemisphere moulding-die |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487873A (en) * | 2001-05-11 | 2004-04-07 | Τ˹��ҩƷ����¹�����˾�����Ϲ� | Pharmaceutical syringe piston and method and device there for |
| CN2666462Y (en) * | 2003-12-23 | 2004-12-29 | 罗松能 | Needle withdrawing safety self-destroying syringe |
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2009
- 2009-11-05 CN CN 200910211103 patent/CN101693400B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487873A (en) * | 2001-05-11 | 2004-04-07 | Τ˹��ҩƷ����¹�����˾�����Ϲ� | Pharmaceutical syringe piston and method and device there for |
| CN2666462Y (en) * | 2003-12-23 | 2004-12-29 | 罗松能 | Needle withdrawing safety self-destroying syringe |
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| CN101693400A (en) | 2010-04-14 |
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