CN220314203U - Protective cap processing welding head for prefilled syringe - Google Patents
Protective cap processing welding head for prefilled syringe Download PDFInfo
- Publication number
- CN220314203U CN220314203U CN202321996930.8U CN202321996930U CN220314203U CN 220314203 U CN220314203 U CN 220314203U CN 202321996930 U CN202321996930 U CN 202321996930U CN 220314203 U CN220314203 U CN 220314203U
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- CN
- China
- Prior art keywords
- protective cap
- groove
- welding head
- pressure head
- annular
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- 230000001681 protective effect Effects 0.000 title claims abstract description 59
- 238000003466 welding Methods 0.000 title claims abstract description 31
- 229940071643 prefilled syringe Drugs 0.000 title claims abstract description 15
- 239000004033 plastic Substances 0.000 claims abstract description 33
- 229920003023 plastic Polymers 0.000 claims abstract description 33
- 238000005452 bending Methods 0.000 claims abstract description 22
- 230000017525 heat dissipation Effects 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 239000003814 drug Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012864 cross contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 229960005486 vaccine Drugs 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
Abstract
The utility model relates to the technical field of prefilled syringe processing equipment, in particular to a protective cap processing welding head for prefilled syringes, which is provided with a welding head body and is characterized in that the welding head body comprises a columnar connecting part and a columnar pressure head part, the connecting part and the pressure head part are sequentially connected and integrally formed, the connecting part is connected with the output end of a press, the lower end surface of the pressure head part is provided with an annular outer groove for bending the mouth part of a plastic protective cap and an annular inner groove for positioning the rubber protective cap, a positioning bulge is arranged between the annular outer groove and the annular inner groove, the section of the annular outer side between the positioning bulge and the outer side of the pressure head part is arc-shaped, and the prefilled syringe processing welding head has the advantages of simple structure, high processing precision, good processing effect, high yield, prevention of separation of the rubber protective cap from the plastic protective cap and the like.
Description
Technical Field
The utility model relates to the technical field of pre-filling and sealing injector processing equipment, in particular to a protective cap processing welding head for a pre-filling and sealing injector, which has the advantages of simple structure, high processing precision, good processing effect, high yield and capability of preventing a rubber protective cap from being separated from a plastic protective cap.
Background
As is known, the prefilled syringe is more applied to the fields of vaccine, first aid and the like, and the direct filling of medicine is required to reduce cross contamination and direct injection, so that two functions of medicine packaging and clinical injection are considered. Therefore, the accessories matched with the water-soluble polymer are required to have good chemical and biological properties, usability and sealing protection performance for medicines.
The head needle of the prefilled syringe is required to be protected by a protective cap, the protective cap for the prefilled syringe comprises an inner rubber protective cap and an outer plastic protective cap, the outer part of the rubber protective cap is sleeved with the plastic protective cap, and the rubber protective cap and the plastic protective cap are sleeved together to protect the injection needle. The cap which is sleeved together better realizes the sealing of the needle and prevents the needle from bending and other problems caused by poor stability of simple rubber, and the plastic cap and the rubber cap are required to be pulled out simultaneously when the cap is pulled out from the syringe needle in clinical use because the rubber cap is required to be arranged in the plastic cap, so that the plastic cap and the rubber cap are required to be removed synchronously.
At present, in order to avoid synchronous removal of the plastic protective cap and the rubber protective cap, the opening part of the plastic protective cap is generally provided with an annular bulge for blocking the detachment of the rubber protective cap in injection molding, but the rubber protective cap is required to be pressed into the plastic protective cap by using very large force in the later installation process, so that the lower end of the plastic protective cap is expanded, the combination degree between the rubber protective cap and the plastic protective cap is also influenced while the appearance is influenced, and the risk of detachment of the rubber protective cap and the plastic protective cap still exists.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provide the protective cap processing welding head for the prefilled syringe, which has the advantages of simple structure, high processing precision, good processing effect, high yield and capability of preventing the rubber protective cap from being separated from the plastic protective cap.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a protection cap processing bonding tool for prefilled syringe, is equipped with the bonding tool body, its characterized in that bonding tool body includes columnar connecting portion, columnar pressure head portion, connecting portion, pressure head portion connect gradually and integrated into one piece, connecting portion be connected with the press output, the lower terminal surface of pressure head portion be equipped with the annular outer groove that supplies plastics protection cap oral area crooked and supply the annular inside groove of rubber protection cap location, be the location arch between annular outer groove and the annular inside groove, the cross-section of the annular outside between location arch and the pressure head portion outside is convex.
The columnar limiting clamping part is arranged between the columnar connecting part and the columnar pressure head part, the connecting part, the limiting clamping part and the pressure head part are sequentially connected and integrally formed, and the diameter of the limiting clamping part is larger than that of the connecting part and the pressure head part.
The rear end of the connecting part is provided with a thread groove, and the connecting part is connected with the output end of the press through the thread groove.
The pressure head part in the middle of the annular inner groove is provided with a heat dissipation groove, the pressure head part on the side surface of the groove bottom of the heat dissipation groove is provided with a heat dissipation hole communicated with the heat dissipation groove, and heat is dissipated to the welding head through the heat dissipation groove and the heat dissipation hole.
The bottom of the annular inner groove between the radiating groove and the positioning protrusion is a plane, so that the positioning of the rubber protective cap is facilitated.
The diameter of the radiating groove is smaller than the inner diameter of the rubber protective cap, so that the rubber protective cap can be positioned conveniently.
The annular outer groove comprises a guide part and a bending part, wherein the sections of the guide part and the bending part are arc-shaped, the guide part and the bending part are connected in a smooth transition mode in sequence, the guide part is arranged on the outer side, and the bending part is arranged on the inner side.
A transition part is arranged between the guide part and the bending part, and the guide part, the transition part and the bending part are sequentially and smoothly connected in a transition way.
Due to the adoption of the structure, the utility model has the advantages of simple structure, high processing precision, good processing effect, high yield, preventing the separation of the rubber protective cap and the plastic protective cap, and the like.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a cross-sectional view of a helmet manufactured using the present utility model.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
as shown in the drawing, a protective cap processing welding head for a pre-filling and sealing injector is provided with a welding head body and is characterized in that the welding head body comprises a columnar connecting part 1 and a columnar pressing head part 2, the connecting part 1 and the pressing head part 2 are sequentially connected and integrally formed, the connecting part 1 is connected with an output end of a press, an annular outer groove 3 for bending an opening of a plastic protective cap 11 and an annular inner groove 4 for positioning a rubber protective cap 10 are arranged on the lower end surface of the pressing head part 2, a positioning protrusion 5 is arranged between the annular outer groove 3 and the annular inner groove 4, and the cross section of the annular outer side between the positioning protrusion 5 and the outer side of the pressing head part 2 is arc-shaped.
Further, a columnar limiting clamping part 6 is arranged between the columnar connecting part 1 and the columnar pressing head part 2, the connecting part 1, the limiting clamping part 6 and the pressing head part 2 are sequentially connected and integrally formed, and the diameter of the limiting clamping part 6 is larger than that of the connecting part 1 and the pressing head part 2.
Further, the rear end of the connecting part 1 is provided with a thread groove 7, and the connecting part 1 is connected with the output end of the press through the thread groove 7.
Further, the pressure head part 2 in the middle of the annular inner groove 4 is provided with a heat dissipation groove 8, the pressure head part 2 on the side surface of the groove bottom of the heat dissipation groove 8 is provided with a heat dissipation hole 9 communicated with the heat dissipation groove 8, and heat dissipation is carried out on the welding head through the heat dissipation groove 8 and the heat dissipation hole 9.
Further, the bottom of the annular inner groove 4 between the heat dissipation groove 8 and the positioning protrusion 5 is a plane, so that the positioning of the rubber protective cap 10 is facilitated.
The diameter of the radiating groove 8 is smaller than the inner diameter of the rubber protective cap 10, so that the rubber protective cap 10 can be positioned conveniently.
Further, the annular outer groove 3 comprises a guide part 12 and a bending part 13, the sections of the guide part 12 and the bending part 13 are arc-shaped, the guide part 12 and the bending part 13 are connected in a smooth transition mode in sequence, the guide part 12 is arranged on the outer side, and the bending part 13 is arranged on the inner side.
Further, a transition part 14 is arranged between the guide part 12 and the bending part 13, and the guide part 12, the transition part 14 and the bending part 13 are connected in a smooth transition way in sequence.
When the utility model is used, the size design of the annular inner groove 4 and the annular outer groove 3 in the welding head structure is designed according to the opening size of the plastic protective cap 11, the welding head is arranged at the output end of the press, the thread groove 7 of the connecting part 1 of the welding head is connected with the output end of the press, the welding head is connected with a heating mechanism which is a mechanism capable of realizing the heating of the welding head, and the utility model is not repeated in the prior art, when the utility model is used, the plastic protective cap 11 is placed in a fixed mould, the opening is upward, the rubber protective cap 10 is placed in the plastic protective cap 11 through a turntable, the annular bulge 15 arranged at the upper end part of the rubber protective cap 10 is inserted into the annular groove 16 arranged at the upper end of the plastic protective cap 11, then the welding head is rotated to the welding head part, the welding head structure is designed and positioned according to the opening size of the plastic protective cap 11, the rubber protective cap 10 is clamped at the bottom of the annular inner groove 4, and the welding head is heated generally by about 120 degrees, the plastic cap 11 is pressed down by mechanical force, and is melted by heat for 10-15 seconds, during the pressing process, the opening of the plastic cap 11 is firstly inserted along the guiding part 12 of the annular outer groove 3, and then is bent along the transition part 14 and the bending part 13 until the upper port part of the plastic cap 11 is deformed into the structure inside the annular outer groove 3 of the welding head, so that the upper end of the plastic cap 11 forms the clamping part 17 inclined towards the lower inner side without influencing the rubber cap 10, and because the clamping part 17 is clamped at the upper end of the annular bulge 15, the clamping part 17 clamps the rubber cap 10 without separating from the plastic cap 11 while the plastic cap 11 is pulled out, thereby realizing the phenomenon that the rubber cap 10 and the plastic cap 11 are simultaneously separated, and the inner structure of the rubber cap 10 is the prior art, and the utility model has the advantages that the structure is simple, the structure is not repeated due to the adoption of the structure, high processing precision, good processing effect, high yield, preventing the rubber protective cap 10 from separating from the plastic protective cap 11, and the like.
Claims (8)
1. The utility model provides a protection cap processing bonding tool for prefilled syringe, is equipped with the bonding tool body, its characterized in that bonding tool body includes columnar connecting portion, columnar pressure head portion, connecting portion, pressure head portion connect gradually and integrated into one piece, connecting portion be connected with the press output, the lower terminal surface of pressure head portion be equipped with the annular outer groove that supplies plastics protection cap oral area crooked and supply the annular inside groove of rubber protection cap location, be the location arch between annular outer groove and the annular inside groove, the cross-section of the annular outside between location arch and the pressure head portion outside is convex.
2. The protective cap processing welding head for the pre-filled and sealed injector according to claim 1, wherein a columnar limiting clamping part is arranged between the columnar connecting part and the columnar pressure head part, the connecting part, the limiting clamping part and the pressure head part are sequentially connected and integrally formed, and the diameter of the limiting clamping part is larger than that of the connecting part and the pressure head part.
3. The welding head for manufacturing the protective cap for the prefilled syringe according to claim 1, wherein the rear end of the connecting portion is provided with a thread groove, and the connecting portion is connected with the output end of the press through the thread groove.
4. The welding head for manufacturing the protective cap for the pre-encapsulating injector according to claim 1, wherein the heat dissipation groove is arranged at the pressure head part in the middle part of the annular inner groove, the heat dissipation hole communicated with the heat dissipation groove is arranged on the pressure head part at the side surface of the groove bottom of the heat dissipation groove, and the welding head is subjected to heat dissipation through the heat dissipation groove and the heat dissipation hole.
5. The welding head for manufacturing a protective cap for a prefilled syringe of claim 4, wherein the bottom of the annular inner groove between the heat sink and the positioning boss is a flat surface.
6. The welding head for a prefilled syringe of claim 4, wherein said heat sink has a diameter smaller than an inner diameter of said rubber boot.
7. The welding head for processing the protective cap for the prefilled syringe according to claim 1, wherein the annular outer groove comprises a guide part and a bending part, the sections of the guide part and the bending part are arc-shaped, the guide part and the bending part are connected in a smooth transition mode in sequence, the guide part is arranged on the outer side, and the bending part is arranged on the inner side.
8. The welding head for manufacturing the protective cap for the prefilled syringe of claim 7, wherein a transition part is provided between the guide part and the bending part, and the guide part, the transition part and the bending part are sequentially and smoothly connected in a transition manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996930.8U CN220314203U (en) | 2023-07-27 | 2023-07-27 | Protective cap processing welding head for prefilled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996930.8U CN220314203U (en) | 2023-07-27 | 2023-07-27 | Protective cap processing welding head for prefilled syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220314203U true CN220314203U (en) | 2024-01-09 |
Family
ID=89424576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321996930.8U Active CN220314203U (en) | 2023-07-27 | 2023-07-27 | Protective cap processing welding head for prefilled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220314203U (en) |
-
2023
- 2023-07-27 CN CN202321996930.8U patent/CN220314203U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |