CN214163858U

CN214163858U - Needle sheath mould is kept somewhere to multiaspect safe type

Info

Publication number: CN214163858U
Application number: CN202022773651.8U
Authority: CN
Inventors: 龚凯彬; 王军; 张灵荣; 蒋灵胜
Original assignee: Suzhou Lingyan Medical Technology Co ltd
Current assignee: Suzhou Lingyan Medical Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-10
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a multi-surface safety type indwelling needle sheath mold, which comprises a mold sleeve, a mold cavity, a first mold core, a second mold core and an injection molding pipeline, wherein the mold sleeve is formed by symmetrically arranging two mold sleeve parts which are mutually laminated to form the mold cavity; the first mold core and the second mold core are arranged in the mold cavity, and an injection molding pipeline is arranged in the first mold core; the die sleeve inner wall is equipped with two sets of fender material strips, and every group keeps off the material strip and is 6, centers on axle center along axial evenly distributed, is equipped with between two sets of fender material strips and keeps away the position groove. The multi-surface safety type indwelling needle sheath mold has reasonable structure, the mold sleeve is composed of two mold sleeve parts which are symmetrically arranged in a laminating way, the assembly and installation are convenient, the mold core is composed of a first mold core and a second mold core, the demolding of the formed sheath is easy, and the using effect is good; the die sleeve inner wall sets up and keeps off the material strip and keep away the position groove, has guaranteed on the basis that forms the sheath to mould plastics evenly, can also practice thrift raw materials, low in production cost, the finished product yields is high, and production efficiency is high.

Description

Needle sheath mould is kept somewhere to multiaspect safe type

Technical Field

The utility model relates to the technical field of medical equipment, specifically a needle sheath mould is kept somewhere to multiaspect safe type.

Background

In recent years, with the increasing strength of precision-grade plastic molds, the yield of plastic products is increasing, the precision requirement is also increasing, and particularly, the plastic mold requirement of the medical industry is increasing. The plastic mold for producing plastic products is an indispensable important component in the whole production process of the plastic products, and the structure of the mold has direct influence on the product quality and the production process.

The existing indwelling needle sheath mold is long in length, poor in centering performance in the injection molding process, uneven in wall thickness of a product possibly caused in production, or local depressions are formed in the surface of the product, so that the yield is reduced, the demolding is inconvenient, more waste materials are generated, the production efficiency is reduced, and the production cost is increased.

Therefore, the above problems need to be solved.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the above not enough, the utility model aims at providing a needle sheath mould is kept somewhere to multiaspect safety type, rational in infrastructure, the aggregate erection of being convenient for, the drawing of patterns is easy, excellent in use effect, it is even to mould plastics, material saving, low in production cost, the finished product yields is high, production efficiency is high.

The technical scheme is as follows: in order to realize the purpose, the utility model provides a multi-surface safety type indwelling needle sheath mold, which comprises a mold sleeve, a mold cavity, a first mold core, a second mold core and an injection molding pipeline, wherein the mold sleeve is formed by symmetrically arranging two mold sleeve parts which are mutually attached to form the mold cavity; the first mold core and the second mold core are arranged in the mold cavity, and an injection molding pipeline is arranged in the first mold core. In the multi-surface safety type indwelling needle sheath mold, the mold sleeve is formed by symmetrically laminating two mold sleeve parts, so that the assembly and installation are convenient, the mold core is composed of the first mold core and the second mold core, the demolding of the formed sheath is easy, and the using effect is good; an injection molding pipeline is arranged in the first mold core, and injection molding raw materials enter the mold cavity through the injection molding pipeline.

Further, needle sheath mould is kept somewhere to foretell multiaspect safety type, the die sleeve includes first multiaspect portion, first circular portion, second circular portion, first multiaspect portion is established in the one end of nearly first mold core, the one end of nearly second mold core is established to the second circular portion, first circular portion is established between first multiaspect portion and second circular portion.

Further, in the multi-surface safety type indwelling needle sheath mold, the inner wall of the first multi-surface part is hexagonal, and the inner walls of the first circular part and the second circular part are circular; the inner diameters of the first multi-surface part, the first circular part and the second circular part are reduced in sequence.

Further, needle sheath mould is kept somewhere to foretell multiaspect safety type, the circular portion inner wall of second is equipped with two sets of fender material strip, and every group keeps off the material strip and is 6, centers on axle center along axial evenly distributed, is equipped with between two sets of fender material strips and keeps away the position groove. In the multiaspect safe type remaining needle sheath mould, the die sleeve inner wall sets up and keeps off the material strip and keep away the position groove, mould plastics evenly, material saving.

Further, in the multi-surface safety type indwelling needle sheath mold, the first mold core comprises a first limiting part, a second multi-surface part and a third circular part, and the second multi-surface part is connected with the first limiting part and the third circular part; the outer diameter of the first limiting part is larger than the inner diameter of the first multi-face part, and the outer diameter of the second multi-face part is adapted to the inner diameter of the first multi-face part.

Further, needle sheath mould is kept somewhere to foretell multiaspect safety type, the second mold core includes spacing portion of second, fourth circular portion, fifth circular portion, spacing portion of second and fifth circular portion are connected to the fourth circular portion, the external diameter of the spacing portion of second is greater than the internal diameter of second circular portion, the internal diameter of fourth circular portion suits with the internal diameter of second circular portion, the fifth circular portion suits with the internal diameter that keeps off the material strip.

Further, in the multi-surface safety type indwelling needle sheath mold, the inner diameter of the third circular portion is consistent with the inner diameter of the fifth circular portion.

Further, according to the multi-surface safety type indwelling needle sheath mold, when the third circular portion is attached to the fifth circular portion, the first limiting portion is attached to the first multi-surface portion, and the second limiting portion is attached to the second circular portion.

Above-mentioned technical scheme can find out, the utility model discloses following beneficial effect has: the multi-surface safety type indwelling needle sheath mold has reasonable structure, the mold sleeve is composed of two mold sleeve parts which are symmetrically arranged in a laminating way, the assembly and installation are convenient, the mold core is composed of a first mold core and a second mold core, the demolding of the formed sheath is easy, and the using effect is good; the die sleeve inner wall sets up and keeps off the material strip and keep away the position groove, has guaranteed on the basis that forms the sheath to mould plastics evenly, can also practice thrift raw materials, low in production cost, the finished product yields is high, and production efficiency is high.

Drawings

FIG. 1 is a schematic sectional view of the multi-surface safety type indwelling needle sheath mold of the present invention;

FIG. 2 is a sectional view of the A-A view angle of the multi-surface safety type indwelling needle sheath mold of the present invention;

FIG. 3 is a sectional view of the B-B view angle of the multi-side safety type indwelling needle sheath mold of the present invention;

FIG. 4 is a schematic structural view of a first mold core in the multi-surface safety type indwelling needle sheath mold of the present invention;

FIG. 5 is a schematic structural view of a second mold core in the multi-surface safety type indwelling needle sheath mold of the present invention;

in the figure: 1. die sleeve; 11. dividing a mold sleeve; 12. a first multi-face section; 13. a first circular portion; 14. a second circular portion; 15. blocking the material strips; 16. a position avoiding groove; 2. a mold cavity; 3. a first mold core; 31. a first limiting part; 32. a second multi-faced portion; 33. a third circular portion; 4. a second mold core; 41. a second limiting part; 42. a ground four-circle portion; 43. a fifth circular portion; 5. and (5) injection molding the pipeline.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

The multi-surface safety type indwelling needle sheath mold shown in fig. 1-5 comprises a mold sleeve 1, a mold cavity 2, a first mold core 3, a second mold core 4 and an injection molding pipeline 5, wherein the mold sleeve 1 is formed by symmetrically arranging two mold sleeve parts 11 which are mutually attached to form the mold cavity 2; the first mold core 3 and the second mold core 4 are arranged in the mold cavity 2, and an injection molding pipeline 5 is arranged in the first mold core 3.

The die sleeve 1 comprises a first multi-surface part 12, a first circular part 13 and a second circular part 14, wherein the first multi-surface part 12 is arranged at one end close to the first die core 3, the second circular part 14 is arranged at one end close to the second die core 4, and the first circular part 13 is arranged between the first multi-surface part 12 and the second circular part 13.

The inner wall of the first multi-surface portion 12 is hexagonal, and the inner walls of the first circular portion 13 and the second circular portion 14 are circular; the inner diameters of the first multi-surface portion 12, the first circular portion 13, and the second circular portion 14 decrease in this order.

Two groups of material blocking strips 15 are arranged on the inner wall of the second circular part 14, each group of material blocking strips 15 is 6 and is uniformly distributed around the axis along the axial direction, and an avoiding groove 16 is arranged between the two groups of material blocking strips 15.

The first mold core 3 includes a first limiting portion 31, a second multi-surface portion 32, and a third circular portion 33, wherein the second multi-surface portion 32 connects the first limiting portion 31 and the third circular portion 33; the outer diameter of the first limiting part 31 is larger than the inner diameter of the first multi-surface part 12, and the outer diameter of the second multi-surface part 32 is matched with the inner diameter of the first multi-surface part 12.

And, the second mold core 4 includes a second limiting portion 41, a fourth circular portion 42, and a fifth circular portion 43, the fourth circular portion 42 connects the second limiting portion 41 and the fifth circular portion 43, the outer diameter of the second limiting portion 41 is greater than the inner diameter of the second circular portion 14, the inner diameter of the fourth circular portion 42 is adapted to the inner diameter of the second circular portion 14, and the fifth circular portion 43 is adapted to the inner diameter of the dam bar 15.

Further, the inner diameter of the third circular portion 33 is equal to the inner diameter of the fifth circular portion 43.

When the third circular portion 33 and the fifth circular portion 43 are bonded, the first stopper portion 31 is bonded to the first multi-surface portion 12, and the second stopper portion 41 is bonded to the second circular portion 14.

Needle sheath mould is kept somewhere to multiaspect safe type when using, two 11 combinations of die sleeve subsection form die sleeve 1, hollow portion forms die cavity 2. The second mold core 4 is arranged in the mold cavity 2, one end of the mold cavity 2 is closed, the first mold core 3 is pushed into the mold cavity 2 from the other end, and meanwhile, injection molding raw materials enter the mold cavity 2 through the injection molding pipeline 5 until the third circular portion 33 is attached to the fifth circular portion 43. And after the injection molding is finished, the mold sleeve part 11 is disassembled, and the first mold core 3 and the second mold core 4 are extracted to obtain a finished product.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications can be made without departing from the principles of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multi-surface safety type indwelling needle sheath mold is characterized by comprising a mold sleeve (1), a mold cavity (2), a first mold core (3), a second mold core (4) and an injection molding pipeline (5), wherein the mold sleeve (1) is formed by symmetrically arranging two mold sleeve parts (11) which are mutually attached to form the mold cavity (2); the first mold core (3) and the second mold core (4) are arranged in the mold cavity (2), and an injection molding pipeline (5) is arranged in the first mold core (3).

2. The multi-sided safety type indwelling needle sheath mold according to claim 1, wherein the mold cover (1) includes a first multi-face portion (12), a first circular portion (13), and a second circular portion (14), the first multi-face portion (12) being provided at an end near the first mold core (3), the second circular portion (14) being provided at an end near the second mold core (4), and the first circular portion (13) being provided between the first multi-face portion (12) and the second circular portion (14).

3. The multi-sided safety type indwelling needle sheath mold according to claim 2, wherein the inner wall of the first multi-sided portion (12) is hexagonal, and the inner walls of the first circular portion (13) and the second circular portion (14) are circular; the inner diameters of the first multi-surface part (12), the first circular part (13) and the second circular part (14) are reduced in sequence.

4. The multi-surface safety type indwelling needle sheath mold according to claim 2, wherein the inner wall of the second circular part (14) is provided with two groups of material blocking strips (15), 6 material blocking strips (15) are arranged in each group and are uniformly distributed around the axis along the axial direction, and an avoiding groove (16) is arranged between the two groups of material blocking strips (15).

5. The multi-sided safety type indwelling needle sheath mold according to claim 2, wherein the first mold core (3) comprises a first stopper (31), a second multi-face part (32), and a third circular part (33), the second multi-face part (32) connecting the first stopper (31) and the third circular part (33); the outer diameter of the first limiting part (31) is larger than the inner diameter of the first multi-surface part (12), and the outer diameter of the second multi-surface part (32) is matched with the inner diameter of the first multi-surface part (12).

6. The multi-surface safety type indwelling needle sheath mold according to claim 5, wherein the second mold core (4) comprises a second limiting part (41), a fourth circular part (42) and a fifth circular part (43), the fourth circular part (42) connects the second limiting part (41) and the fifth circular part (43), the outer diameter of the second limiting part (41) is larger than the inner diameter of the second circular part (14), the inner diameter of the fourth circular part (42) is matched with the inner diameter of the second circular part (14), and the fifth circular part (43) is matched with the inner diameter of the material blocking strip (15).

7. The multi-sided safety type indwelling needle sheath mold according to claim 6, wherein the third circular part (33) has an inner diameter identical to that of the fifth circular part (43).

8. The multi-sided safety type indwelling needle sheath mold according to claim 7, wherein when the third circular part (33) is fitted with the fifth circular part (43), the first stopper part (31) is fitted with the first multi-sided part (12), and the second stopper part (41) is fitted with the second circular part (14).