CN201603827U - Needle tip forming die for needle heads of syringes and infusion sets - Google Patents
Needle tip forming die for needle heads of syringes and infusion sets Download PDFInfo
- Publication number
- CN201603827U CN201603827U CN2010203015006U CN201020301500U CN201603827U CN 201603827 U CN201603827 U CN 201603827U CN 2010203015006 U CN2010203015006 U CN 2010203015006U CN 201020301500 U CN201020301500 U CN 201020301500U CN 201603827 U CN201603827 U CN 201603827U
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- needle
- syringe
- upper die
- lower mold
- die body
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Abstract
The utility model provides a needle tip forming die for needle heads of syringes and infusion sets, which pertains to the technical field of medical instruments, and solves the problem that the existing needle tip forming die has low production efficiency. The needle tip forming die for the needle heads of the syringes and the infusion sets comprises an upper die body and a lower die body which are arranged opposite to each other, and the opposite ends of the upper die body and the lower die body are respectively provided with a punching part which takes the shape of a gable roof. The needle tip forming die for the needle heads of the syringes and the infusion sets has the advantages of forming two needle tips at one time and having high efficiency.
Description
Technical field
The utility model belongs to technical field of medical instruments, relates to the process equipment of a kind of syringe and syringe needle for transfusion device, the needle point forming mould of particularly a kind of syringe and syringe needle for transfusion device.
Background technology
The needle point of the syringe needle that existing syringe and transfusion device are used all is an inclined-plane at the preceding end-grain cutting mill of the needle body of thin light wall pipe wall and constitutes, the needle point of this form is because the inwall and the inclined-plane of needle point latter half still constitutes sharp sword, can cut off the skin and flesh tissue of process.Therefore, existing injection syringe needle all cut away in use a diameter be equivalent to the syringe needle endoporus the skin and flesh tissue and the input human body in.Though this phenomenon do not noted by people for many years, and do not mean that and be safe from harm.For intramuscular injection, the injection site will stay micropore after the withdraw of the needle, and infection and hemorrhage possibility are well imagined.If the blood vessel drug delivery also exists fritter skin and flesh input blood vessel, can not say definitive there not being hidden danger.
For this reason, people have designed a kind of disposable syringe and syringe needle for transfusion device, and applied for patent (its publication number is CN1814313A), this syringe needle comprises the needle body of tubulose, one end of tubulose needle body is constituted by pyramid, taper shape or pyramid and circular cone, has the medicine liquid channel that communicates with this needle body endoporus on this tubulose needle body and tapered needle.Because the relation of medicine liquid channel position, so medical personnel are when injecting, and medicine liquid channel can effectively not avoid cutting off the generation of this situation of tissue over against the injection part of human body when injection.
Simultaneously, also disclose the preparation method of this syringe needle in the above-mentioned patent application, comprised these steps of pipe crimping, weld seam, wire drawing, needle point forming, polishing and punching.Wherein in this step of needle point forming, be that the multi-functional extrusion die by moulding machine is squeezed into required taper needle point with an end of needle body.As can be seen, the working (machining) efficiency of this tapered needle of above-mentioned processing is lower, once can only process a taper needle point.
Summary of the invention
The purpose of this utility model is existing the problems referred to above during at the taper needle point of existing processing needle head, and has proposed a kind ofly can disposablely process two moulds that all have the taper tip needle.
The purpose of this utility model can realize by following technical proposal: the needle point forming mould of a kind of syringe and syringe needle for transfusion device, it is characterized in that, this mould comprises upper die body and the lower mold body that is provided with in opposite directions, and a upper die body and lower mold body end in opposite directions all has the pressing part of one " people " shape roof shape.
In the needle point forming mould of above-mentioned a kind of syringe and syringe needle for transfusion device, the other end of described upper die body and lower mold body is equipped with the electromagnet of a described upper die body of driving and lower mold body move toward one another.
The needle body of tubulose is placed between the pressing part of upper die body, lower mold body, and needle body is perpendicular to the edge, top of pressing part, upper die body and lower mold body are periodically carried out move toward one another and counter motion under the driving of electromagnet separately.During move toward one another, the pressing part top that upper die body and lower mold body can move to them always is till contact.The pressing part of upper die body and lower mold body carries out periodicity and crashes under solenoid actuated, the top of pressing part is along pushing the needle body between them when crashing, and the extruded segment of tubulose needle body is under the effect of pressing part, to axis direction deformation.
Needle body can rotate around its axle center under the drive of power set, and in process, needle body remains rotary state, is extruded while rotate.The extruded segment of needle body circumferentially is squeezed into the hourglass shape, to be extruded section after the tie point place is blocked, form two independent syringe needles that all have the taper needle point.
In the needle point forming mould of above-mentioned a kind of syringe and syringe needle for transfusion device, all have a conical groove on two inclined-planes of described pressing part, the top of groove intersects at the edge, top of pressing part.
Compared with prior art, the needle point forming mould of this syringe and syringe needle for transfusion device is when crashing extrusion process, and working position is positioned at the centre of needle body, to be processed to needle body when the centre is blocked, can form two and all have the taper tip needle, improve working (machining) efficiency greatly.
Description of drawings
Fig. 1 is the work schematic diagram of the needle point forming mould of this syringe and syringe needle for transfusion device.
Fig. 2 is the schematic diagram after the extruded segment of needle body is extruded processing.
Fig. 3 is the work schematic diagram of needle point forming mould in embodiment two of this syringe and syringe needle for transfusion device.
Among the figure, 1, upper die body; 2, lower mold body; 3, needle body; 31, needle point; 32, extruded segment; 32a, tie point; 4, pressing part; 41, edge, top; 5, groove.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, the needle point forming mould of this syringe and syringe needle for transfusion device is made up of two upper die body 1 and lower mold body 2 that are provided with in opposite directions, upper die body 1 and lower mold body 2 end in opposite directions all has the pressing part 4 of one " people " shape roof shape, the top on each pressing part 4 along 41 just over against.
Add man-hour, the needle body 3 of tubulose is placed the center between the pressing part 4 of upper die body 1, lower mold body 2, and along 41, upper die body 1 and lower mold body 2 are periodically carried out move toward one another and counter motion to needle body 3 under the driving of drive system separately perpendicular to the top of pressing part 4.During move toward one another, till pressing part 4 top that upper die body 1 and lower mold body 2 can move to them always contacts along 41.
When upper die body 1 and lower mold body 2 move toward one another, the top of their pressing part 4 is pushed the needle body 3 between them along 41, and the extruded segment 32 of tubulose needle body 3 is under the effect of pressing part 4, to axis direction deformation.
As shown in Figure 2, needle body 3 can rotate around its axle center under the drive of power set, and in process, needle body 3 remains rotary state, is extruded while rotate.The extruded segment 32 of needle body 3 circumferentially is squeezed into the hourglass shape, to be extruded section 32 after tie point 32a place is blocked, form two independent syringe needles that all have taper needle point 31.
In the present embodiment, drive system can adopt electromagnet, divide the other end that is located at upper die body 1 and lower mold body 2, shrinkage character when utilizing the electromagnet core power on/off, can drive upper die body 1 and lower mold body 2 execution cycle property move toward one another or counter motions, utilize the characteristic of electromagnet can realize stepless speed regulation, regulate the frequency and the power of punching press as required.
Upper die body 1 and lower mold body 2 are in the process that the extruded segment 32 of needle body 3 is processed, and the crush stroke of both move toward one another is to change always.The processing primary stage, the extruding degree of 4 pairs of needle bodies of the pressing part of upper die body 1 and lower mold body 2,3 extruded segment 32 is lighter, only acts on extruded segment 32 surface portions; Along with going deep into of processing, pressing part 4 is deeply extruding gradually, and the top of two pressing parts 4 on upper die body 1 and lower mold body 2 contacts along 41, till the extruded segment 32 of needle body 3 is blocked from tie point 32a.Crush stroke between upper die body 1 and the lower mold body 2 can be regulated mechanically, and the spacing of promptly regulating two pressing parts 4 of upper die body 1 and lower mold body 2 constantly gets final product.Another kind method is to regulate by electrical equipment, promptly comes the stroke that stretches out of regulating magnet iron core by the electrical current size that changes electromagnet.And the power set of needle body 3 can use plain clamp that the two ends of needle body 3 are clamped, and by in the same way, rotate with speed.
In addition, drive system can also use high velocity ram machine to drive the motion of upper die body 1 and lower mold body 2.Mould in the present patent application not only can be used for the needle point 31 of processing needle head, can also be applied to the processing that other have the tubular workpiece of conical head, and the entity workpiece also is feasible.
Embodiment two
As shown in Figure 3, process principle in the present embodiment is identical with embodiment one, offer conical groove 5 on two inclined-planes of different is each pressing part 4, the top of two grooves 5 intersects at the top along 41 places, and the surface configuration of the shape of groove 5 and cone tip 31 of coming out to be processed is complementary.So, pressing part 4 is when pushing the extruded segment 32 of needle body 3, and 5 pairs of extruded segment 32 of the groove on the pressing part 4 can play good styling, and processing effect is better.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. the needle point forming mould of syringe and syringe needle for transfusion device, it is characterized in that, this mould comprises upper die body (1) and the lower mold body (2) that is provided with in opposite directions, and a upper die body (1) and lower mold body (a 2) end in opposite directions all have the pressing part (4) of one " people " shape roof shape.
2. the needle point forming mould of a kind of syringe according to claim 1 and syringe needle for transfusion device, it is characterized in that the other end of described upper die body (1) and lower mold body (2) is equipped with the electromagnet of a driving described upper die body (1) and lower mold body (2) move toward one another.
3. the needle point forming mould of a kind of syringe according to claim 1 and 2 and syringe needle for transfusion device, it is characterized in that, all have a conical groove (5) on two inclined-planes of described pressing part (4), the top of groove (5) intersects at the edge, top of pressing part (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203015006U CN201603827U (en) | 2010-01-25 | 2010-01-25 | Needle tip forming die for needle heads of syringes and infusion sets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203015006U CN201603827U (en) | 2010-01-25 | 2010-01-25 | Needle tip forming die for needle heads of syringes and infusion sets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201603827U true CN201603827U (en) | 2010-10-13 |
Family
ID=42948536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203015006U Expired - Fee Related CN201603827U (en) | 2010-01-25 | 2010-01-25 | Needle tip forming die for needle heads of syringes and infusion sets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201603827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351809A (en) * | 2021-06-23 | 2021-09-07 | 黄帅 | Surgical operation syringe needle processingequipment |
| CN113600726A (en) * | 2021-07-07 | 2021-11-05 | 天长市仁宝五金科技有限公司 | Stamping method for quickly positioning and forming hollow needle copper bar cold heading |
-
2010
- 2010-01-25 CN CN2010203015006U patent/CN201603827U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113351809A (en) * | 2021-06-23 | 2021-09-07 | 黄帅 | Surgical operation syringe needle processingequipment |
| CN113351809B (en) * | 2021-06-23 | 2023-01-17 | 青岛市城阳区人民医院 | Surgical operation syringe needle processingequipment |
| CN113600726A (en) * | 2021-07-07 | 2021-11-05 | 天长市仁宝五金科技有限公司 | Stamping method for quickly positioning and forming hollow needle copper bar cold heading |
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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: 20101013 Termination date: 20110125 |