Optical fiber coating device and coating production line

Abstract

The utility model relates to an optical fiber coating device and a coating production line. The optical fiber coating device comprises a die holder, an inlet die assembly, an outlet die assembly and a quick connector, a central through hole and a side hole communicated with the central through hole are coaxially formed in the die holder; the inlet mold assembly comprises an inlet inner mold, an inlet outer mold, an inlet mold cover, a first sealing ring and a second sealing ring; the outlet mold assembly comprises an outlet mold, an outlet mold cover and a third sealing ring; the output end of the quick connector is hermetically connected with the side hole; the whole optical fiber coating device is arranged to be of a split structure composed of a plurality of components, is convenient to mount and dismount, has good sealing performance and pressure resistance, can avoid ink leakage in the optical fiber coloring process, reduces the production cost, can adapt to higher coating pressure to meet the requirement for higher production speed, and improves the production efficiency. And the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber coating device technical field especially is a kind of optical fiber coating device and coating production line. BACKGROUND

[0002] In optical cable manufacturing, in order to distinguish the plurality of optical fibers in the optical cable, ink is coated on the optical fiber, that is, the optical fiber is colored, so that the plurality of optical fibers located in the same optical cable each have a corresponding color, which is beneficial to improve the efficiency of laying or maintenance process.

[0003] The current coating method is to press the ink into the coloring mold, so that the coloring mold has a certain coating pressure inside, and then the optical fiber passes through the coloring mold to coat the ink on the surface of the optical fiber. The sealing and pressure resistance of the existing coloring mold are limited, and higher coating pressure cannot be provided, and ink leakage is prone to occur, which cannot meet the demand of speeding up the production of optical fiber coloring. SUMMARY

[0004] Therefore, the utility model wants to overcome the problem that the sealing and pressure resistance of the coloring mold for coloring optical fiber in the prior art are limited, higher coating pressure cannot be provided, and ink leakage is prone to occur, which cannot meet the demand of speeding up the production of optical fiber coloring.

[0005] To solve the above technical problems, the utility model provides an optical fiber coating device, comprising,

[0006] The mold seat comprises a mold seat body, a first connecting part and a second connecting part, a center through hole is coaxially provided on the mold seat body, and a side hole communicating with the center through hole is provided on the side surface of the mold seat body. The first connecting part and the second connecting part are both annular structures, and the first connecting part and the second connecting part are coaxially arranged at both ends of the mold seat body respectively.

[0007] The inlet mold assembly comprises an inlet inner mold, an inlet outer mold and an inlet mold cover, the inlet inner mold is coaxially arranged in the inner hole of the first connecting part, a first mold hole is provided on the inlet inner mold, and a first sealing ring is coaxially arranged between the inlet inner mold and the mold seat body. One end of the inlet outer mold is coaxially embedded in the inner hole of the first connecting part, a second mold hole is coaxially provided on the inlet outer mold, and a second sealing ring is sleeved between the inlet outer mold and the first connecting part. The inlet mold cover is coaxially connected to the free end of the first connecting part and tightly presses the inlet outer mold on the inlet inner mold, and an input hole is provided on the inlet mold cover.

[0008] An outlet die assembly comprises an outlet die and an outlet die cover, the outlet die is coaxially arranged in the inner hole of the second connecting part, a third die hole is coaxially arranged on the outlet die, and a third sealing ring is coaxially arranged between the outlet die and the die seat body, the outlet die cover is coaxially connected to the free end of the second connecting part and tightly presses the outlet die on the die seat body, and an output hole is coaxially arranged on the outlet die cover;

[0009] A quick joint, an output end of the quick joint is sealingly connected with the side hole.

[0010] In an embodiment of the utility model, the inlet inner die is a circular plate structure, and the diameter of the inlet inner die matches the inner diameter of the first connecting part.

[0011] In an embodiment of the utility model, the inlet outer die is a cylindrical structure, the diameter of the inlet outer die matches the inner diameter of the first connecting part, an annular groove extending around the circumference of the inlet outer die is arranged on the circumferential surface of the inlet outer die, and the second sealing ring is arranged in the annular groove.

[0012] In an embodiment of the utility model, the outlet die is a cylindrical structure, and the diameter of the outlet die matches the inner diameter of the second connecting part.

[0013] In an embodiment of the utility model, the side hole vertically communicates with the center through hole, and the side hole is located on the side close to the second connecting part.

[0014] In an embodiment of the utility model, the inlet die cover comprises a first body in a cylindrical shape, a first circular groove is coaxially arranged on one end of the first body, the input hole is arranged on the other end of the first body and communicates with the first circular groove, and an inner thread for screwing with the first connecting part is arranged on the inner wall of the first circular groove.

[0015] In an embodiment of the utility model, the outlet die cover comprises a second body in a cylindrical shape, a second circular groove is coaxially arranged on one end of the second body, the output hole is arranged on the other end of the second body and communicates with the second circular groove, and an inner thread for screwing with the second connecting part is arranged on the inner wall of the second circular groove.

[0016] In an embodiment of the utility model, the end face of the joint end of the inlet inner die and the inlet outer die is mirror finished.

[0017] In an embodiment of the utility model, the die seat body, the first connecting part and the second connecting part are integrally formed.

[0018] A coating production line comprises the optical fiber coating device as claimed in any one of the preceding embodiments.

[0019] The above technical scheme of the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a kind of optical fiber coating device and coating production line, including mould seat, entrance mould component, exit mould component and quick coupling;Center through-hole and the side hole that communicates center through-hole are coaxially provided on mould seat;Entrance mould component includes entrance inner mould, entrance outer mould, entrance mould cover, first sealing ring and second sealing ring;Exit mould component includes exit mould, exit mould cover and third sealing ring;The output end of quick coupling is sealed with side hole.This coating device is set in the entrance end of mould seat with entrance inner mould and entrance outer mould cooperate sealing ring to strengthen sealing;First sealing ring is tightly pressed between entrance inner mould and mould seat main part to play the role of first layer sealing, the end mirror surface processing of entrance inner mould and entrance outer mould is connected, improve the degree of combination compactness, to improve the sealing of the position of two moulds connected;And second sealing ring is set on entrance outer mould to play the role of second layer sealing;While, the length of channel when ink escapes is increased for the entrance inner mould and entrance outer mould connected, to play the role of buffer, further reduce the possibility of ink leakage.And in the outlet end of coating device, sealing effect is played by the role of exit mould and third sealing ring.The whole optical fiber coating device is set as the split type structure of multiple components, installation and disassembly are more convenient, and have good sealing property and pressure resistance, can avoid the leakage of ink in the process of optical fiber coloring, reduce production cost, and can adapt to greater coating pressure, to meet the demand of faster production speed, improve the efficiency of production. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily be clearly understood, the utility model is further explained in detail below according to the specific embodiment of the utility model and combining with the drawings, wherein

[0022] Figure 1 It is the perspective view of the optical fiber coating device of the preferred embodiment of the utility model;

[0023] Figure 2 It is the explosion view of the optical fiber coating device of the preferred embodiment of the utility model;

[0024] Figure 3 It is the structure schematic view of the mould seat of the optical fiber coating device of the preferred embodiment of the utility model;

[0025] Figure 4 It is the section view of the mould seat of the optical fiber coating device of the preferred embodiment of the utility model;

[0026] Figure 5 It is the structure schematic view of the entrance inner mould of the optical fiber coating device of the preferred embodiment of the utility model;

[0027] Figure 6is the structure schematic view of the inlet outer die of the optical fiber coating device of the preferred embodiment of the utility model;

[0028] Figure 7 is the structure schematic view of the outlet die of the optical fiber coating device of the preferred embodiment of the utility model.

[0029] Description of the drawings: 1, die holder;11, die holder main body;111, center through hole;112, side hole;12, first connecting part;13, second connecting part;2, inlet die assembly;21, inlet inner die;211, first die hole;22, inlet outer die;221, second die hole;222, annular groove;23, inlet die cover;24, first sealing ring;25, second sealing ring;3, outlet die assembly;31, outlet die;311, third die hole;32, outlet die cover;33, third sealing ring;4, quick connector. DETAILED DESCRIPTION

[0030] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model. Embodiment one

[0031] Refer to Figure 1 The utility model discloses a kind of optical fiber coating devices, including,

[0032] Die holder 1, die holder 1 includes die holder main body 11, first connecting part 12 and second connecting part 13, center through hole 111 is coaxially provided on die holder main body 11, side hole 112 is communicated with center through hole 111 and is arranged on the side of die holder main body 11;First connecting part 12 and second connecting part 13 are annular structure, first connecting part 12 and second connecting part 13 are coaxially arranged at both ends of die holder main body 11 respectively;

[0033] Inlet die assembly 2, inlet die assembly 2 includes inlet inner die 21, inlet outer die 22 and inlet die cover 23, inlet inner die 21 is coaxially arranged in the inner hole of first connecting part 12, first die hole 211 is arranged on inlet inner die 21, and first sealing ring 24 is coaxially arranged between inlet inner die 21 and die holder main body 11;One end of inlet outer die 22 is coaxially embedded in the inner hole of first connecting part 12, second die hole 221 is coaxially arranged on inlet outer die 22, and second sealing ring 25 is arranged between inlet outer die 22 and first connecting part 12;Inlet die cover 23 is coaxially connected to the free end of first connecting part 12 and tightly presses inlet outer die 22 on inlet inner die 21, and input hole is arranged on inlet die cover 23;

[0034] An outlet die assembly 3, the outlet die assembly 3 comprises an outlet die 31 and an outlet die cover 32, the outlet die 31 is coaxially arranged in the inner hole of the second connecting part 13, a third die hole 311 is coaxially arranged on the outlet die 31, and a third sealing ring 33 is coaxially arranged between the outlet die 31 and the die seat body 11, the outlet die cover 32 is coaxially connected to the free end of the second connecting part 13 and presses the outlet die 31 on the die seat body 11, and an output hole is coaxially arranged on the outlet die cover 32.

[0035] A quick connector 4, the output end of the quick connector 4 is sealingly connected with the side hole 112.

[0036] Specifically, due to the reason of the fiber running in the coloring process, the ink leakage is more likely to occur at the inlet end of the coating device than at the outlet end, so the inlet inner die 21 and the inlet outer die 22 are arranged at the inlet end of the die seat to cooperate with the sealing ring to enhance the sealing; the first sealing ring 24 is tightly pressed between the inlet inner die 21 and the die seat body 11 to play a first layer sealing role, the end of the inlet inner die 21 and the inlet outer die 22 is mirror processed to improve the bonding tightness, thereby improving the sealing performance of the joint position of the inlet inner die 21 and the inlet outer die 22; and the second sealing ring 25 is arranged on the circumference of the inlet outer die 22 between the first connecting part 12 and the inner hole to play a second layer sealing role; at the same time, the joint of the inlet inner die 21 and the inlet outer die 22 increases the length of the channel for the ink to escape, thereby playing a buffering role and further reducing the possibility of ink leakage. At the outlet end of the coating device, the outlet die 31 and the third sealing ring 33 play a sealing role. The entire fiber coating device is arranged in a split structure composed of multiple components, which is convenient to install and disassemble, has good sealing performance and pressure resistance, can avoid ink leakage in the fiber coloring process, reduce production cost, and can adapt to larger coating pressure to meet the demand for faster production speed and improve production efficiency.

[0037] Further, the inlet inner die 21 is a circular plate structure, and the diameter of the inlet inner die 21 matches the inner diameter of the first connecting part 12.

[0038] Further, the inlet outer die 22 is a circular cylinder structure, the diameter of the inlet outer die 22 matches the inner diameter of the first connecting part 12, and an annular groove 222 extending around the circumference is arranged on the circumference of the inlet outer die 22, and the second sealing ring 25 is arranged in the annular groove 222.

[0039] Further, the outlet die 31 is a cylindrical structure, and the diameter of the outlet die 31 matches the inner diameter of the second connecting part 13. Specifically, the entire optical fiber coating device is divided into multiple units that can be assembled and disassembled, which is convenient for installation and maintenance, and multiple inlet inner dies 21, inlet outer dies 22 and outlet dies 31 with different die hole diameters can be arranged, so that the parts of the device can be replaced according to actual needs, thereby improving the versatility of the entire coating device; at the same time, when some parts are damaged, they can also be replaced individually, which can reduce the use and maintenance cost of the device.

[0040] Further, the side hole 112 is vertically communicated with the center through hole 111, and the side hole 112 is located near one side of the second connecting part 13. It is conceivable that the inlet end of the coating device is more prone to leakage, so when the side hole 112 is arranged, its position can be slightly closer to the end of the second connecting part 13, which can also help to avoid ink leakage to some extent.

[0041] Further, the inlet die cover 23 includes a cylindrical first body, one end of the first body is coaxially provided with a first circular groove, the other end is provided with an input hole communicated with the first circular groove, and the inner wall of the first circular groove is provided with an internal thread for screwing with the first connecting part 12.

[0042] Further, the outlet die cover 32 includes a cylindrical second body, one end of the second body is coaxially provided with a second circular groove, the other end is provided with an output hole communicated with the second circular groove, and the inner wall of the second circular groove is provided with an internal thread for screwing with the second connecting part 13. Specifically, the inlet die cover 23 and the outlet die cover 32 have the same structure, and the inlet die cover 23 and the outlet die cover 32 are connected with the die seat 1 by screwing, which is convenient for installation and disassembly, and the screw structure can adjust the compression degree of the die cover to the internal components, which is beneficial to the sealing performance of the entire structure.

[0043] Further, the end faces of the ends of the inlet inner die 21 and the inlet outer die 22 are mirror finished, and after mirror finishing, the ends of the inlet inner die 21 and the inlet outer die 22 can be combined more tightly, which has better sealing performance and can avoid ink leakage.

[0044] Further, the die seat body 11, the first connecting part 12 and the second connecting part 13 are integrally formed.

[0045] Further, the inner walls of the die holes (i.e. the first die hole 211, the second die hole 221 and the third die hole 311) of the inlet inner die 21, the inlet outer die 22 and the outlet die 31 are provided with a medium layer for improving the service life of the die. Embodiment two

[0046] The utility model discloses also a kind of coating production line, including the optical fiber coating device of example one.

[0047] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and can not be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An optical fiber coating device, characterized in that: a die seat, the die seat comprising a die seat body, a first connecting part and a second connecting part, a central through hole coaxially formed on the die seat body, a side hole formed on the side of the die seat body and communicating with the central through hole; the first connecting part and the second connecting part are both annular structures, and the first connecting part and the second connecting part are coaxially arranged at both ends of the die seat body respectively; an inlet die assembly, the inlet die assembly comprising an inlet inner die, an inlet outer die and an inlet die cover, the inlet inner die coaxially arranged in the inner hole of the first connecting part, a first die hole formed on the inlet inner die, and a first sealing ring coaxially arranged between the inlet inner die and the die seat body; one end of the inlet outer die coaxially embedded in the inner hole of the first connecting part, a second die hole coaxially formed on the inlet outer die, and a second sealing ring coaxially arranged on the inlet outer die between the inlet outer die and the first connecting part; the inlet die cover coaxially connected to the free end of the first connecting part and tightly pressing the inlet outer die on the inlet inner die, an input hole formed on the inlet die cover; an outlet die assembly, the outlet die assembly comprising an outlet die and an outlet die cover, the outlet die coaxially arranged in the inner hole of the second connecting part, a third die hole coaxially formed on the outlet die, and a third sealing ring coaxially arranged between the outlet die and the die seat body, the outlet die cover coaxially connected to the free end of the second connecting part and tightly pressing the outlet die on the die seat body, an output hole coaxially formed on the outlet die cover; a quick connector, the output end of the quick connector sealingly connected with the side hole. The inlet inner die is a circular plate structure, and the diameter of the inlet inner die matches the inner diameter of the first connecting part.

2. The optical fiber coating apparatus of claim 1, wherein: The inlet outer die is a cylindrical structure, the diameter of the inlet outer die matches the inner diameter of the first connecting part, and an annular groove extending around the circumference of the inlet outer die is formed on the circumferential surface of the inlet outer die, and the second sealing ring is arranged in the annular groove.

3. The optical fiber coating apparatus of claim 1, wherein: The outlet die is a cylindrical structure, and the diameter of the outlet die matches the inner diameter of the second connecting part.

4. The optical fiber coating apparatus of claim 1, wherein: The side hole vertically communicates with the central through hole, and the side hole is located on the side close to the second connecting part.

5. The optical fiber coating apparatus of claim 1, wherein: The inlet die cover comprises a cylindrical first body, one end of the first body coaxially forms a first circular groove, the other end forms the input hole communicating with the first circular groove, and the inner wall of the first circular groove is provided with an internal thread for screwing with the first connecting part.

6. The optical fiber coating apparatus of claim 1, wherein: The outlet die cover comprises a cylindrical second body, one end of the second body coaxially forms a second circular groove, the other end forms the output hole communicating with the second circular groove, and the inner wall of the second circular groove is provided with an internal thread for screwing with the second connecting part.

7. The optical fiber coating apparatus of claim 1, wherein: The end faces of the joint ends of the inlet inner die and the inlet outer die are mirror finished.

8. The optical fiber coating apparatus of claim 1, wherein: The die seat body, the first connecting part and the second connecting part are integrally formed.

9. The optical fiber coating apparatus of claim 1, wherein: An optical fiber coating device as claimed in any one of claims 1-9.

10. A coating line, characterized by ​

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