CN209987354U - Pipe extrusion die and extruder - Google Patents
Pipe extrusion die and extruder Download PDFInfo
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- CN209987354U CN209987354U CN201920529028.2U CN201920529028U CN209987354U CN 209987354 U CN209987354 U CN 209987354U CN 201920529028 U CN201920529028 U CN 201920529028U CN 209987354 U CN209987354 U CN 209987354U
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Abstract
The utility model relates to the technical field of medical equipment, a pipe extrusion tooling and extruder is disclosed. The guide pipe extrusion die comprises a die, an inner insert and a core die, wherein a first developing material injection opening is formed in the die, the outer surface of the inner insert is abutted to the inner surface of the die and can rotate in the die, a second developing material injection opening is formed in the inner insert, the second developing material injection opening is communicated with the first developing material injection opening, the inner insert is sleeved on the core die, an annular flow guide cavity is formed between the inner insert and the core die, and the annular flow guide cavity is communicated with the second developing material injection opening. By communicating the first developing material injection port on the die with the second developing material injection port on the inner insert, the developing line can be formed on the outer surface of the guide pipe in the process of extruding the guide pipe; the inner insert can rotate relative to the die, so that the position of the second developing material injection port can be adjusted according to actual needs, and the developing lines are molded on different positions of the guide pipe.
Description
Technical Field
The utility model relates to the technical field of medical equipment, especially, relate to a pipe extrusion tooling and extruder.
Background
It is often necessary to add a visualization line to the medical catheter during the procedure in order to detect the active site of the medical catheter during use.
The catheter extrusion die in the prior art is generally only provided with a mouth die and a core die, the mouth die is fixedly arranged on an extruder, and the position of a developing material injection port is fixed; however, the structure of the tube profile is complicated compared to the single lumen tube, and the degree of symmetry of the cross section is not high in some cases, and it is necessary to form the developing lines at different positions on the tube profile according to actual conditions.
SUMMERY OF THE UTILITY MODEL
Based on the above, an object of the utility model is to provide a pipe extrusion tooling and extruder can be according to actual conditions shaping development line in the position of needs on the pipe.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a catheter extrusion die, comprising: the opening die is provided with a first developing material injection port; the outer surface of the inner insert is abutted against the inner surface of the neck mold and can rotate in the neck mold, a second developing material injection port is formed in the inner insert, and the second developing material injection port is communicated with the first developing material injection port; the inner insert is sleeved on the core mold, an annular flow guide cavity is arranged between the inner insert and the core mold, and the annular flow guide cavity is communicated with the second developing material injection opening.
As a preferable scheme of the catheter extrusion die, an annular groove is formed in the inner insert, and the annular groove is communicated with both the first developer injection port and the second developer injection port.
In a preferred embodiment of the pipe extrusion die, the second developer injection port is provided in plurality, and the plurality of second developer injection ports are provided at intervals along an outer surface of the insert.
In a preferred embodiment of the pipe extrusion die, a cross-sectional area of an end of the first developer injection port close to the insert is smaller than a cross-sectional area of an end of the first developer injection port far from the insert.
As a preferable scheme of the catheter extrusion die, the annular diversion cavity is arranged in a conical shape.
As a preferable scheme of the guide pipe extrusion die, a plurality of inner inserts are arranged, and all the inner inserts can be detachably connected with the neck die.
As a preferable mode of the catheter extrusion die, the catheter extrusion die is made of stainless steel.
The utility model provides an extruder, includes the extruder body and set up in crowded material mechanism on the extruder body still includes above-mentioned pipe extrusion tooling, pipe extrusion tooling fixed set up in on the extruder body, the discharge gate and the annular water conservancy diversion chamber intercommunication of crowded material mechanism.
As a preferable scheme of the extruder, the core die is provided with internal threads, and the core die is in threaded connection with the extruder body.
The utility model has the advantages that:
the utility model provides a conduit extrusion die, which comprises a mouth die, a core die and an inner insert, wherein a first developing material injection port on the mouth die is communicated with a second developing material injection port on the inner insert, so that a developing line can be formed on the outer surface of a conduit in the conduit extrusion process; the inner insert can rotate relative to the die, so that the position of the second developing material injection port can be adjusted according to actual needs, and the developing lines are molded on different positions of the guide pipe.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a single lumen tube provided by the present invention;
fig. 2 is a cross-sectional view of the mechanical tube provided by the present invention;
fig. 3 is an exploded view of a catheter extrusion die provided by the present invention;
fig. 4 is a cross-sectional view of a catheter extrusion die provided by the present invention;
fig. 5 is a cross-sectional view of the insert according to the present invention.
In the figure:
100-single chamber tube, 200-special tube;
1-die, 11-first developing material injection port;
2-core mold;
3-inner insert, 31-second developer injection port, 32-annular groove.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment provides an extruder, and this extruder includes the extruder body, sets up crowded material mechanism and pipe extrusion tooling on the extruder body, and pipe extrusion tooling is fixed to be set up on the extruder body for the medical pipe of shaping.
In order to facilitate the detection of the action position during the use, the development lines are generally formed on the outer surface of the catheter at the same time, and for the single-lumen tube 100 shown in fig. 1, because the cross section of the single-lumen tube 100 is a completely symmetrical figure, the formation position of the development lines is not required, and the existing catheter extrusion die is easier to form. However, in the conventional duct extrusion die, the developing line cannot be formed at a desired position in the profile pipe 200 shown in fig. 2 according to the actual situation.
In order to solve the problem, as shown in fig. 3 to 5, the catheter extrusion mold provided in this embodiment includes a die 1, a core mold 2, and an insert 3, wherein the die 1 is provided with a first developer injection port 11, an outer surface of the insert 3 abuts against an inner surface of the die 1 and can rotate in the die 1, the insert 3 is provided with a second developer injection port 31, the second developer injection port 31 is communicated with the first developer injection port 11, the insert 3 is sleeved on the core mold 2, an annular diversion cavity is provided between the insert 3 and the core mold 2, and the annular diversion cavity is communicated with the second developer injection port 31. Wherein the core die 2 is provided with internal threads, and the core die 2 is in threaded connection with the extruder body. By providing the inner insert 3 to be rotatable with respect to the die 1, the position of the second developer injection port 31 can be adjusted as needed, and the development lines can be formed at different positions of the tube profile 200.
Furthermore, a discharge hole of the extruding mechanism is communicated with the annular flow guide cavity, and the annular flow guide cavity is arranged in a conical shape in order to enable the material flow of the forming guide pipe to smoothly flow into the annular flow guide cavity and be extruded and formed. During the extrusion of the material flow, the inner insert 3 will maintain a sealed state due to the extrusion pressure of the material flow, thereby ensuring that the developing material is extruded and molded on the outer surface of the conduit at a certain pressure.
Further, an annular groove 32 is provided on the inner insert 3, and the annular groove 32 communicates with both the first developer injection port 11 and the second developer injection port 31. The developer flows into the annular groove 32 from the first developer injection port 11, and then flows into the second developer injection port 31 from the annular groove 32, and the developing lines are formed on the outer surface of the conduit during the extrusion process of the conduit. When the insert 3 rotates with respect to the die 1, since the annular groove 32 is provided in the insert 3, the first developer injection port 11 and the second developer injection port 31 are always communicated with each other, and the developer can smoothly flow into the second developer injection port 31.
Further, it is sometimes necessary to form a plurality of developing lines on the outer surface of the guide tube, and in order to solve this problem, a plurality of second developing material injection ports 31 are provided on the inner insert 3, and the plurality of second developing material injection ports 31 are provided at intervals along the outer surface of the inner insert 3.
Preferably, in order to mold the duct provided with different numbers of developing lines by using a set of duct extrusion die, in this embodiment, an inner insert group detachably connected to the die 1 may be provided, the inner insert group is composed of a plurality of inner inserts 3 provided with different numbers of second developing material injection ports 31, and the number of the second developing material injection ports 31 provided on the inner inserts 3 may be 1 or an integral number greater than 1, for example, 1, 2, 3, or 5. The forming of ducts with different numbers of development lines is achieved by replacing different inserts 3 on the die 1.
Further, the cross-sectional area of the end of the first developer injection port 11 close to the insert 3 is smaller than the cross-sectional area of the end of the first developer injection port 11 far from the insert 3.
Further, the conduit extrusion die is made of stainless steel, and the wear resistance, the corrosion resistance and the service life of the die can be improved by manufacturing the conduit extrusion die with the stainless steel.
This pipe extrusion tooling simple structure, convenient operation, bush 1 can be general, has reduced a large amount of costs in the design and the manufacturing of mould, and when pipe extrusion tooling's some takes place to damage, can directly change take place to damage the part the structure can, do not need whole to change, the maintenance cost that has significantly reduced.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (9)
1. A catheter extrusion die, comprising:
the developing device comprises a neck ring (1), wherein a first developing material injection port (11) is formed in the neck ring (1);
the outer surface of the inner insert (3) is abutted against the inner surface of the neck ring mold (1) and can rotate in the neck ring mold (1), a second developing material injection port (31) is formed in the inner insert (3), and the second developing material injection port (31) is communicated with the first developing material injection port (11);
the core mold (2) is sleeved with the inner insert (3), an annular flow guide cavity is arranged between the inner insert (3) and the core mold (2), and the annular flow guide cavity is communicated with the second developing material injection opening (31).
2. The catheter extrusion die according to claim 1, wherein an annular groove (32) is provided on the inner insert (3), the annular groove (32) communicating with both the first developer injection port (11) and the second developer injection port (31).
3. The catheter extrusion die according to claim 1, wherein the second developer injection port (31) is provided in plurality, and the plurality of second developer injection ports (31) are provided at intervals along an outer surface of the inner insert (3).
4. The catheter extrusion die according to claim 1, wherein a cross-sectional area of an end of the first developer injection port (11) close to the insert (3) is smaller than a cross-sectional area of an end of the first developer injection port (11) far from the insert (3).
5. The catheter extrusion die of claim 1, wherein the annular deflector cavity is conically shaped.
6. A catheter extrusion die according to any one of claims 1 to 5, characterized in that a plurality of said inserts (3) are provided, each of said inserts (3) being removably connectable to said die (1).
7. The catheter extrusion die of claim 6, wherein the catheter extrusion die is made of stainless steel.
8. An extruder, comprising an extruder body and a material extruding mechanism arranged on the extruder body, and being characterized by further comprising the conduit extrusion die as set forth in any one of claims 1 to 7, wherein the conduit extrusion die is fixedly arranged on the extruder body, and a discharge port of the material extruding mechanism is communicated with the annular flow guide cavity.
9. The extruder according to claim 8, wherein the core die (2) is provided with an internal thread, and the core die (2) is in threaded connection with the extruder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920529028.2U CN209987354U (en) | 2019-04-18 | 2019-04-18 | Pipe extrusion die and extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920529028.2U CN209987354U (en) | 2019-04-18 | 2019-04-18 | Pipe extrusion die and extruder |
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| Publication Number | Publication Date |
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| CN209987354U true CN209987354U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920529028.2U Active CN209987354U (en) | 2019-04-18 | 2019-04-18 | Pipe extrusion die and extruder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109303A (en) * | 2020-09-03 | 2020-12-22 | 昆山乐朗精密模塑有限公司 | Medical anesthesia catheter area X-ray developing line co-extrusion composite extrusion die |
| CN113665150A (en) * | 2021-08-31 | 2021-11-19 | 广州永士达医疗科技有限责任公司 | Hose manufacturing method and probe hose |
| CN114311603A (en) * | 2020-12-07 | 2022-04-12 | 江苏爱源医疗科技股份有限公司 | Cross slot type drainage tube extrusion mould |
-
2019
- 2019-04-18 CN CN201920529028.2U patent/CN209987354U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112109303A (en) * | 2020-09-03 | 2020-12-22 | 昆山乐朗精密模塑有限公司 | Medical anesthesia catheter area X-ray developing line co-extrusion composite extrusion die |
| CN114311603A (en) * | 2020-12-07 | 2022-04-12 | 江苏爱源医疗科技股份有限公司 | Cross slot type drainage tube extrusion mould |
| CN113665150A (en) * | 2021-08-31 | 2021-11-19 | 广州永士达医疗科技有限责任公司 | Hose manufacturing method and probe hose |
| CN113665150B (en) * | 2021-08-31 | 2022-07-12 | 广州永士达医疗科技有限责任公司 | Hose manufacturing method and probe hose |
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