CN217098835U - Novel extrusion pipe extruding die - Google Patents
Novel extrusion pipe extruding die Download PDFInfo
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- CN217098835U CN217098835U CN202123428567.3U CN202123428567U CN217098835U CN 217098835 U CN217098835 U CN 217098835U CN 202123428567 U CN202123428567 U CN 202123428567U CN 217098835 U CN217098835 U CN 217098835U
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- negative pressure
- needle tube
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Abstract
The utility model discloses a novel crowded pipe mould of extrusion, include: the machine head is provided with a die cavity communicated with the outside; the die is embedded in a die cavity of the machine head; the die comprises an extrusion channel and a discharge channel, and the extrusion channel is connected with the discharge channel; one end of the clamp extends into the die cavity of the machine head and is connected with the die; the clamp comprises a negative pressure cavity, an end cover and a connecting pipe; the negative pressure cavity is communicated with the clamp, one end of the negative pressure cavity is communicated with the discharging channel, and the end cover seals the other end of the negative pressure cavity; the connecting pipe is connected with the negative pressure cavity; the end cover is provided with a connecting hole; the mold core needle tube is inserted into the negative pressure cavity from the connecting hole of the end cover; the end of the mold core needle tube exposed out of the end cover is a feeding end, and the end inserted into the discharge channel is a discharge end; the inside of the mold core needle tube is provided with a run-through feeding cavity, and the inner wall of the mold core needle tube is provided with a plurality of through holes. The utility model discloses can improve the concentricity of yarn and cable core to and realize extrusion, crowded pipe, half extrusion state when not influencing the concentricity of product.
Description
Technical Field
The utility model relates to an optical cable production technical field, concretely relates to novel crowded pipe mould of extrusion.
Background
The sleeve is an important component of the optical cable, and is formed by extrusion in order to ensure the compact structure of the optical cable. And a negative pressure process is adopted in the extrusion process.
The prior art extrusion die generally comprises split and integral dies.
The split type die sleeve realizes the states of extrusion, pipe extrusion and semi-extrusion by changing the position of the die sleeve, and has the defect of causing the eccentricity of a product.
A phantom, comprising a monolithic body and a mobile body. The integral die can not change the relative position of the die core and the die sleeve and can not realize the extrusion, pipe extrusion and semi-extrusion states. The movable integrated die can relatively slide, but when the product of the stranding unit is produced, the yarns cannot be well protected, the yarns are easily sucked to one side by negative pressure, and the peripheral yarns and the cable core are not concentric.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art.
In order to solve the technical problem, the utility model provides a novel crowded pipe mould of extrusion, include:
the machine head is provided with a die cavity communicated with the outside;
the die is embedded in a die cavity of the machine head; the die comprises an extrusion channel and a discharge channel, and the extrusion channel is connected with the discharge channel;
one end of the clamp extends into the die cavity of the machine head and is connected with the die; the clamp comprises a negative pressure cavity, an end cover and a connecting pipe; the negative pressure cavity penetrates through the clamp, one end of the negative pressure cavity is communicated with the discharging channel, and the end cover seals the other end of the negative pressure cavity; the connecting pipe is connected with the negative pressure cavity; the end cover is provided with a connecting hole;
the mold core needle tube is inserted into the negative pressure cavity from the connecting hole of the end cover; one end of the mold core needle tube, which is exposed out of the end cover, is a feeding end, and the other end of the mold core needle tube, which is inserted into the discharge channel, is a discharge end; a through feeding cavity is formed in the mold core needle tube, and a plurality of through holes are formed in the inner wall of the mold core needle tube;
and adjusting the exposed length of the mold core needle tube on the end cover side so as to adjust the relative position of the mold core needle tube and the extrusion channel of the mold.
As an optimal mode of the utility model, the feeding cavity, the negative pressure cavity and the discharging channel are coaxial.
As a preferred mode of the utility model, the mold core needle tube comprises a connecting part, a ventilation part and an adjusting part, the outer diameter of which is enlarged in sequence.
As a preferable mode of the present invention, the connecting portion is inserted into the discharging passage.
As a preferred mode of the present invention, the plurality of through holes are uniformly distributed along the periphery of the ventilation portion.
As an optimized mode of the utility model, the connecting hole of end cover is equipped with the internal thread, the regulation portion is equipped with the external screw thread, regulation portion and connecting hole threaded connection.
As an optimized mode of the utility model, the aperture of the feeding cavity of the feeding end is gradually enlarged from inside to outside.
As a preferred mode of the utility model, the die comprises a die core and a die sleeve which are coaxially arranged, and the discharge channel penetrates through the die core and the die sleeve; an extrusion channel is formed between the die sleeve and the die core.
As an optimal mode of the utility model, the mold core needle tube is connected with the mold core and the mold sleeve in sequence.
As an optimized mode of the utility model, the mold core is equipped with the toper chamber, the toper chamber with the negative pressure chamber switches on.
Compared with the prior art, the technical scheme of the utility model have following advantage:
1. the mold core needle tube is provided with uniform through holes, so that yarns can be well protected when negative pressure is pumped, and the concentricity of the yarns and the cable core is improved.
2. The relative position of the mold core needle tube and the extrusion channel is adjusted to realize the states of extrusion, tube extrusion and semi-extrusion, so that the eccentricity of the product is avoided, and the concentricity of the product is not influenced.
Drawings
In order to make the content of the present invention more clearly understood, the present invention will be described in further detail with reference to the following embodiments of the present invention, in conjunction with the accompanying drawings.
Fig. 1 is a schematic sectional view of the novel extrusion pipe-extruding die of the present invention.
Fig. 2 is a schematic sectional view of the mold core needle tube of the novel tube extruding mold of the present invention.
Fig. 3 is a schematic sectional view of the novel extrusion pipe-extruding die of the present invention.
The specification reference numbers indicate: 1. the die comprises a machine head, 2 parts of a die, 21 parts of an extrusion channel, 22 parts of a discharge channel, 23 parts of a die core, 231 parts of a conical cavity, 24 parts of a die sleeve, 3 parts of a clamp, 31 parts of a negative pressure cavity, 32 parts of an end cover, 33 parts of a connecting pipe, 4 parts of a die core needle tube, 41 parts of a feed cavity, 42 parts of a through hole, 43 parts of a connecting part, 44 parts of a ventilation part, 45 parts of an adjusting part, 451 parts of external threads, 46 parts of a feed end and 47 parts of a discharge end.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and 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 "second" or "first" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features, or indirectly contacting the first and second features through intervening media. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements does not include a limitation to the listed steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1-3, an embodiment of the present invention relates to a novel extruding and pipe-extruding mold, which includes:
the machine head 1 is provided with a die cavity communicated with the outside.
The die 2 is embedded in the die cavity of the machine head 1; the die 2 comprises an extrusion channel 21 and a discharge channel 22, wherein the extrusion channel 21 is connected with the discharge channel 22.
One end of the clamp 3 extends into the die cavity of the machine head 1 and is connected with the die 2; the clamp 3 comprises a negative pressure cavity 31, an end cover 32 and a connecting pipe 33; the negative pressure cavity 31 penetrates through the clamp 3, one end of the negative pressure cavity 31 is communicated with the discharging channel 22, and the end cover 32 seals the other end of the negative pressure cavity 31; the connecting pipe 33 is connected with the negative pressure cavity 31; the end cap 32 is provided with a coupling hole.
The mold core needle tube 4 is inserted into the negative pressure cavity 31 from the connecting hole of the end cover 32; the end of the mold core needle tube 4 exposed out of the end cover 32 is a feeding end 46, and the end inserted into the discharge channel 22 is a discharge end 47; a through feeding cavity 41 is arranged inside the mold core needle tube 4, and a plurality of through holes 42 are formed in the inner wall of the mold core needle tube 4.
The exposed length of the core needle tube 4 on the end cap 32 side is adjusted to adjust the relative position of the core needle tube 4 and the extrusion passage 21 of the die 2.
Wherein, cable core, yarn certainly the feed end 46 of mold core needle tubing 4 gets into mold core needle tubing 4, the aperture of the feed cavity 41 of feed end 46 enlarges gradually from inside to outside, is the loudspeaker form promptly, slowly gathers together the yarn, is favorable to the yarn to pass through behind the mold core needle tubing 4 more easily placed in the middle.
The cable core, yarn are followed mold core needle tubing 4 removes to discharge end 47, and connecting pipe 33 connects and takes out negative pressure equipment, takes out negative pressure equipment and is in form the negative pressure in the negative pressure chamber 31, and the inner wall of mold core needle tubing 4 is equipped with a plurality of through-holes 42, and protection yarn that can be fine is not adsorbed by the negative pressure on one side of mold core needle tubing 4, guarantees the concentricity of yarn and cable core.
The die 2 extrudes sheath materials to the discharge channel 22 through the extrusion channel 21, and the sheath materials are coated on the cable core and the periphery of the yarn to form a sheath.
The part of the mold core needle tube 4 extending out of the connecting hole can be used for adjusting, the length of the mold core needle tube 4 extending into the discharging channel 22 is adjusted, namely the relative position of the mold core needle tube 4 and the extruding channel 21 is adjusted, and the extruding, tube extruding and semi-extruding states can be formed. The relative position of the mold core needle tube 4 and the extrusion channel 21 is adjusted during production, and the concentricity of the product is not influenced. Meanwhile, the length of the tail part of the mold core needle tube 4 extending out of the end cover 32 is measured, so that the relative position of the mold core needle tube 4 and the extrusion channel 21 can be obtained, and the extrusion molding pressure can be controlled.
Preferably, the feeding cavity 41, the negative pressure cavity 31 and the discharging channel 22 are coaxial. The balance of negative pressure and the smoothness of feeding are facilitated.
Preferably, the core needle tube 4 includes a connecting portion 43, a vent portion 44, and an adjusting portion 45, which have sequentially enlarged outer diameters. The connection 43 is inserted into the outlet channel 22. A plurality of through holes 42 are evenly distributed along the periphery of the vent portion 44.
The connection portion 43 is inserted into the discharge channel 22 and is precisely fitted to the discharge channel 22. The ventilation part 44 is used for pumping negative pressure, the through holes 42 are formed in the ventilation part 44, and the through holes 42 are uniformly distributed according to a rule, so that the negative pressure is balanced conveniently, and the concentricity of yarns and cable cores is guaranteed.
The connecting hole of the end cover 32 is provided with an internal thread, the adjusting part 45 is provided with an external thread 451, and the adjusting part 45 is in threaded connection with the connecting hole. The external thread 451 of the regulating portion 45 is engaged with the internal thread of the connecting hole, and the relative position of the connecting portion 43 of the core needle tube 4 and the extrusion passage 21 is changed by screwing the regulating portion 45 of the core needle tube 4. The threaded connection facilitates accurate adjustment of the mold core needle tube 4.
Preferably, the mold 2 comprises a mold core 23 and a mold sleeve 24 which are coaxially arranged, and the discharge channel 22 penetrates through the mold core 23 and the mold sleeve 24. The extrusion channel 21 is formed between the die sleeve 24 and the die core 23. The mold core needle tube 4 is connected with the mold core 23 and the mold sleeve 24 in sequence. The mold core 23 is provided with a tapered cavity 231, and the tapered cavity 231 is communicated with the negative pressure cavity 31.
An extrusion channel 21 is formed between the mold core 23 and the mold sleeve 24, the mold core 23 is provided with a conical cavity 231, and the mold core needle tube 4 extends into the conical cavity 231 and is sequentially connected with the mold core 23 and the mold sleeve 24. The mold core needle tube 4 adjusts the relative position with the extrusion passage 21, i.e., adjusts the relative position with the mold core 23 and the mold sleeve 24. The mold core needle 4 can be adjusted to be in full contact, half contact, or no contact with the extrusion channel 21.
Compared with the prior art, the technical scheme of the utility model have following advantage:
a novel crowded pipe mould of extrusion, can protect the yarn well, avoid the yarn to be sucked to one side by the negative pressure, cause peripheral yarn and cable core decentraction, improve the concentricity of yarn and cable core. The extrusion, pipe extrusion and semi-extrusion states are realized by adjusting the mold core needle tube, and the eccentricity of a product cannot be caused.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a novel crowded pipe mould of extrusion which characterized in that includes:
the machine head is provided with a die cavity communicated with the outside;
the die is embedded in a die cavity of the machine head; the die comprises an extrusion channel and a discharge channel, and the extrusion channel is connected with the discharge channel;
one end of the clamp extends into the die cavity of the machine head and is connected with the die; the clamp comprises a negative pressure cavity, an end cover and a connecting pipe; the negative pressure cavity penetrates through the clamp, one end of the negative pressure cavity is communicated with the discharging channel, and the end cover seals the other end of the negative pressure cavity; the connecting pipe is connected with the negative pressure cavity; the end cover is provided with a connecting hole;
the mold core needle tube is inserted into the negative pressure cavity from the connecting hole of the end cover; one end of the mold core needle tube, which is exposed out of the end cover, is a feeding end, and the other end of the mold core needle tube, which is inserted into the discharge channel, is a discharge end; a through feeding cavity is formed in the mold core needle tube, and a plurality of through holes are formed in the inner wall of the mold core needle tube;
and adjusting the exposed length of the mold core needle tube on the end cover side so as to adjust the relative position of the mold core needle tube and the extrusion channel of the mold.
2. The extrusion tube die as recited in claim 1, wherein the feed cavity, the negative pressure cavity and the discharge channel are coaxial.
3. The novel extrusion tube-extruding die as claimed in claim 1, wherein the die core needle tube comprises a connecting part, a ventilating part and an adjusting part, the outer diameter of which is enlarged in sequence.
4. The extrusion die of claim 3, wherein the connecting portion is inserted into the discharge passage.
5. The novel extrusion tube extrusion die as recited in claim 3, wherein a plurality of through holes are uniformly distributed along the periphery of the vent portion.
6. The novel extrusion tube extruding die as recited in claim 3, wherein the connecting hole of the end cover is provided with an internal thread, the adjusting part is provided with an external thread, and the adjusting part is in threaded connection with the connecting hole.
7. The extrusion die as claimed in claim 1, wherein the aperture of the feeding cavity of the feeding end is gradually enlarged from inside to outside.
8. The novel extrusion tube-extruding die as claimed in claim 1, wherein the die comprises a die core and a die sleeve which are coaxially arranged, and the discharge channel penetrates through the die core and the die sleeve; an extrusion channel is formed between the die sleeve and the die core and communicated with the discharge channel.
9. The novel extrusion tube-extruding die as claimed in claim 8, wherein the die core needle tube is connected with the die core and the die sleeve in sequence.
10. The novel extrusion tube-extruding die as claimed in claim 8, wherein the die core is provided with a conical cavity, and the conical cavity is communicated with the negative pressure cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123428567.3U CN217098835U (en) | 2021-12-31 | 2021-12-31 | Novel extrusion pipe extruding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123428567.3U CN217098835U (en) | 2021-12-31 | 2021-12-31 | Novel extrusion pipe extruding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217098835U true CN217098835U (en) | 2022-08-02 |
Family
ID=82592316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123428567.3U Active CN217098835U (en) | 2021-12-31 | 2021-12-31 | Novel extrusion pipe extruding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217098835U (en) |
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2021
- 2021-12-31 CN CN202123428567.3U patent/CN217098835U/en active Active
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