Dry optical fiber loose tube extrusion device and method

Abstract

The present application relates to the field of tube production, and specifically discloses a dry optical fiber loose tube extrusion device and method thereof, which comprises: an extruder; a cooling water tank; a pressure roller; a winding roller, which is used to form a plug hole for inserting one end of the dry optical fiber loose tube and a water injection cavity connected to the plug hole; a water injection assembly, which is used to inject water into the interior of the dry optical fiber loose tube through the water injection cavity and the plug hole in sequence, and directly or indirectly make the liquid level of the water inside the dry optical fiber loose tube flush with the liquid level of the cooling water tank; wherein, the dry optical fiber loose tube is inserted into the plug hole, so that the dry optical fiber loose tube can be fixed relative to the winding roller; the water in the cooling water tank has the same water temperature as the water inside the dry optical fiber loose tube. The present application has the effect of greatly improving the production quality of dry optical fiber loose tubes.

Description

Technical Field

[0001] The present application relates to the field of tube production, and in particular to a dry optical fiber loose tube extrusion device and method thereof. Background Art

[0002] The dry optical fiber loose tube extrusion device is a device that extrude the dry optical fiber loose tube outward through an extruder. After the dry optical fiber loose tube is extruded outward, it needs to pass through a pool filled with cooling water, and the dry optical fiber loose tube is immersed in the cooling water to achieve cooling and heat dissipation of the dry optical fiber loose tube;

[0003] However, directly immersing the dry optical fiber loose tube in cooling water will cause uneven heating of the dry optical fiber loose tube, mainly because the outside of the dry optical fiber loose tube is cooled by low-temperature cooling water, and there will be a temperature difference between the inside and the outside of the dry optical fiber loose tube, which is prone to thermal expansion and contraction at the moment of cooling, resulting in cracks in the dry optical fiber loose tube, affecting the quality of the dry optical fiber loose tube;

[0004] In addition, when the dry optical fiber loose tube is directly immersed in water, the inside of the dry optical fiber loose tube is air and the outside of the dry optical fiber loose tube is water, which leads to different pressures on the inside and outside of the dry optical fiber loose tube. The outer wall of the dry optical fiber loose tube is under pressure, which may cause the dry optical fiber loose tube to be flattened or partially deformed. Summary of the invention

[0005] In order to improve the problem of poor production quality of dry optical fiber loose tubes, the present application provides a dry optical fiber loose tube extrusion device.

[0006] The present application provides a dry optical fiber loose tube extrusion device that adopts the following technical solution:

[0007] A dry optical fiber loose tube extrusion device comprises: an extruder, used for extruding the dry optical fiber loose tube outward along a discharging direction; a cooling water tank, arranged in the discharging direction; a pressing roller, used for allowing the dry optical fiber loose tube to bypass and partially immerse the dry optical fiber loose tube below the liquid level of the cooling water tank; a winding roller, used for forming a plug hole for inserting one end of the dry optical fiber loose tube and a water injection cavity communicated with the plug hole; a water injection component, used for injecting water into the dry optical fiber loose tube through the water injection cavity and the plug hole in sequence, and directly or indirectly making the liquid level of the water inside the dry optical fiber loose tube flush with the liquid level of the cooling water tank; a driving component, used for driving the winding roller to rotate; wherein the dry optical fiber loose tube is inserted into the plug hole, so that the dry optical fiber loose tube can be fixed relative to the winding roller; the water in the cooling water tank has the same water temperature as the water inside the dry optical fiber loose tube.

[0008] By adopting the above technical solution, during the manufacturing process of the dry optical fiber loose tube, the inner wall surface of the dry optical fiber loose tube and the outer wall surface of the dry optical fiber loose tube are cooled at the same time, so that the dry optical fiber loose tube is cooled more evenly, and the situation that the dry optical fiber loose tube is not cooled evenly, resulting in poor quality and easy cracks;

[0009] Because in the prior art, when the dry optical fiber loose tube is immersed in the cooling water tank, since the inside of the dry optical fiber loose tube is air and the outside of the dry optical fiber loose tube is water, the pressures inside the dry optical fiber loose tube and outside the dry optical fiber loose tube are different, thereby causing the process of cooling the dry optical fiber loose tube, which is actually the process in which the outer wall surface of the dry optical fiber loose tube is subjected to pressure, and the pressure on the outer wall surface of the dry optical fiber loose tube may cause the dry optical fiber loose tube to be flattened, or the dry optical fiber loose tube to be partially deformed, and by adopting the above-mentioned technical scheme, the inside of the dry optical fiber loose tube is water, and the outside of the dry optical fiber loose tube is also water, which can provide the same pressure inside and outside the dry optical fiber loose tube, thereby making the pressure on the dry optical fiber loose tube uniform, thereby avoiding the situation in which the dry optical fiber loose tube is deformed and the dry optical fiber loose tube is flattened, thereby improving the production quality of the dry optical fiber loose tube;

[0010] By setting up the water injection component and the winding roller, the dry optical fiber loose tube can be uniformly cooled and uniformly subjected to pressure while being wound up, which greatly reduces the time waste in the production process. When the dry optical fiber loose tube is wound, since there is water inside the dry optical fiber loose tube, the dry optical fiber loose tube is prevented from being flattened by the tightening pressure during the winding process, so that the shape of the dry optical fiber loose tube itself can be better guaranteed during the winding process, and the production quality of the dry optical fiber loose tube can be better improved.

[0011] Optionally, the water injection assembly includes: a water supply tank, a water outlet pipe, a water pump and a liquid level sensor; the water outlet pipe is connected to the water injection cavity, and the water supply tank is connected to the water outlet pipe; the water pump is used to connect to an external water source and add water to the water supply tank, and the liquid level sensor is used to set a preset water level in the water supply tank, and when the liquid level in the water supply tank is higher than the preset water level, the water pump stops adding water, and when the liquid level in the water supply tank is lower than the preset water level, the water pump starts adding water; wherein the position of the preset water level is higher than the position of the water injection cavity.

[0012] By adopting the above technical scheme, a U-shaped tube structure is formed between the water in the water supply tank, the water outlet pipe, the water injection cavity, the jack and the dry optical fiber loose tube, so that the height position of the water in the dry optical fiber loose tube can always be maintained, and it is better to ensure that as the dry optical fiber loose tube is squeezed outward, the water in the dry optical fiber loose tube can always be filled to the position of the dry optical fiber loose tube located in the cooling water tank.

[0013] Optionally, the water injection assembly also includes a control component, which increases the water pressure in the water supply tank by means of compressed air; the control component includes: a pressure plate, a displacement drive structure and a control valve; the pressure plate is slidingly and sealingly connected to the inner wall surface of the water supply tank; the displacement drive structure is used to drive the pressure plate to rise and fall in the water supply tank; and a through hole for installing the control valve is opened in the pressure plate.

[0014] By adopting the above technical solution, the pressure in the water supply tank can be controlled by moving the pressure plate upward and downward, so that the position of the water level in the dry optical fiber loose tube can be selectively controlled.

[0015] Optionally, a water outlet nozzle is provided in the socket, and the socket is connected to the water injection cavity through the water outlet nozzle; a clamping assembly is provided on the winding roller, and when the dry optical fiber loose tube is inserted into the socket, the water outlet nozzle is inserted into the dry optical fiber loose tube, and the clamping assembly clamps the outer wall surface of the dry optical fiber loose tube at the contact position with the water outlet nozzle; the clamping assembly is connected to the winding roller.

[0016] By adopting the above technical solution, the dry optical fiber loose tube is better connected to the through hole to prevent water leakage.

[0017] Optionally, a recessed area is provided on the winding roller; the clamping assembly is arranged in the recessed area; the clamping assembly includes: a first clamping plate, a second clamping plate, a fixing rod and a fastener; the fixing rod is fixed to the middle part of the winding roller, and the first clamping plate and the second clamping plate are both rotatably connected to the fixing rod; a first clamping groove is formed on the first clamping plate, and a second clamping groove is formed on the second clamping plate; the fastener is used to fix the first clamping plate and the second clamping plate to the winding roller when the first clamping plate and the second clamping plate are rotated relative to the winding roller until the first clamping groove and the second clamping groove abut against the outer wall of the dry optical fiber loose sleeve.

[0018] By adopting the above technical solution, the dry optical fiber loose tube is better fixed, so that the dry optical fiber loose tube and the winding roller are fixed more firmly, and the dry optical fiber loose tube is better wound on the roller.

[0019] Optionally, the dry optical fiber loose tube extrusion device also includes a mounting frame, which is used to install the winding roller; a fixed disk is arranged on the winding roller, the fixed disk is fixed to the mounting frame, and the fixed disk is rotatably connected to the winding roller; a cooling element is arranged on the fixed disk, and the cooling element is used to cool the fixed disk to a low-temperature heat exchange state; two fixed disks are arranged, and a low-temperature heat exchange area is formed between the two fixed disks, and the dry optical fiber loose tube is located in the low-temperature heat exchange area.

[0020] By adopting the above technical scheme, the low-temperature heat exchange area can cool the dry optical fiber loose tube wound on the winding roller. Since the water in the dry optical fiber loose tube will increase, and the dry optical fiber loose tube wound on the winding roller only receives the internal water for heat dissipation, after the dry optical fiber loose tube is wound on the winding roller for multiple turns, the efficiency of heat exchange of the water inside the dry optical fiber loose tube will become low, and it will be difficult to ensure that the water inside the dry optical fiber loose tube has the same temperature as the water outside the dry optical fiber loose tube. Therefore, by setting the low-temperature heat exchange area, the dry optical fiber loose tube on the winding roller can be directly cooled, and the efficiency of water heat exchange inside the dry optical fiber loose tube can be better guaranteed, and the water inside the dry optical fiber loose tube can be better guaranteed to have the same temperature as the water in the cooling water tank.

[0021] Optionally, an overflow hole is provided on the cooling water tank for the dry optical fiber loose sleeve to pass through; a receiving box is arranged below the cooling water tank; the receiving box is used to receive water overflowing from the overflow hole; a first pump body component is arranged at the receiving box, and the first pump body component is used to add the water in the receiving box into the cooling water tank.

[0022] Optionally, the dry optical fiber loose tube extrusion device further includes a shifting assembly, and the shifting assembly is used to drive the pressing roller to move in the cooling water tank.

[0023] Optionally, an air injection pipe is provided on the water outlet pipe, the air injection pipe passes through the water outlet pipe, and the air injection pipe partially extends into the water injection cavity; a first air pump is provided on the air injection pipe; and a second pump body component is provided on the water outlet pipe.

[0024] By adopting the above technical scheme, after cooling the water in the dry optical fiber loose tube for a period of time, the dry optical fiber loose tube originally immersed below the liquid level of the cooling water tank can be moved to the outside of the cooling water tank as the pressure roller moves by moving the pressure roller, and at the same time, the second pump body component extracts the water in the dry optical fiber loose tube outward, and the first air pump injects gas into the dry optical fiber loose tube, thereby achieving the replacement of the water inside the dry optical fiber loose tube and the injection of gas to prevent the vacuum inside the dry optical fiber loose tube from deformation and flattening. Replacing the water inside the dry optical fiber loose tube can better ensure the temperature of the water inside the dry optical fiber loose tube.

[0025] A dry optical fiber loose tube extrusion method is also provided, comprising the following steps: extruding the dry optical fiber loose tube outwardly through an extruder; immersing the dry optical fiber loose tube in a cooling water tank filled with cooling water through a pressure roller; injecting water into the dry optical fiber loose tube through a water injection component, and making the water inside the dry optical fiber loose tube flush with the liquid surface of the cooling water tank; and driving the winding roller to rotate through a driving component to wind and reel the dry optical fiber loose tube.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By fixing the dry optical fiber loose tube on the winding roller and injecting cooling water into the end of the dry optical fiber loose tube through the winding roller, the inner wall surface and the outer wall surface of the dry optical fiber loose tube are cooled at the same time, so that the dry optical fiber loose tube is cooled more evenly, and the poor quality and easy cracks caused by uneven cooling of the dry optical fiber loose tube are prevented;

[0028] 2. By filling the inside of the dry optical fiber loose tube with cooling water, the inside and outside of the dry optical fiber loose tube will be provided with the same pressure, so that the pressure on the dry optical fiber loose tube will be uniform, thereby avoiding the deformation of the dry optical fiber loose tube and the flattening of the dry optical fiber loose tube, thereby improving the production quality of the dry optical fiber loose tube;

[0029] 3. By opening a water injection cavity and a plug hole in the winding roller, the dry optical fiber loose tube can be uniformly cooled and pressurized while being wound up, thereby reducing the time waste in the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0031] Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 1 structure;

[0032] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the cooling water tank and some surrounding parts;

[0033] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the winding roller and some surrounding parts;

[0034] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the driving assembly and some surrounding parts;

[0035] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of a dry optical fiber loose tube and some surrounding parts;

[0036] Figure 7 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the gas injection pipe and some surrounding parts;

[0037] Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the clamping assembly and some surrounding parts;

[0038] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the clamping assembly;

[0039] Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fixed disk and some surrounding parts;

[0040] Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the position structure of the recessed area;

[0041] Fig.12 It is a structural schematic diagram of a part of the embodiment, mainly showing the cross-sectional structure of the winding roller;

[0042] Fig.13 yes Fig.12 A magnified view of part A;

[0043] Fig.14 yes Fig.12 B enlarged view;

[0044] Fig.15 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the pressing plate.

[0045] Reference numerals:

[0046] 1. Extruder;

[0047] 2. Cooling water tank; 21. Receiving tank; 22. First pump body component; 23. Support rod;

[0048] 3. Pressing roller;

[0049] 4. winding roller; 41. insertion hole; 42. water injection cavity; 43. water outlet nozzle; 44. recessed area;

[0050] 5. Water injection assembly; 51. Water supply tank; 52. Water outlet pipe; 53. Water pump; 54. Press plate; 55. Displacement drive structure; 56. Air injection pipe; 57. First air pump; 58. Second pump body component;

[0051] 6. driving assembly; 61. mounting seat; 62. motor; 63. first gear; 64. second gear;

[0052] 7. Dry optical fiber loose tube;

[0053] 8. Clamping assembly; 81. First clamping plate; 82. Second clamping plate; 83. Fixing rod; 84. Threaded hole;

[0054] 9. Fixing plate; 10. Mounting frame. DETAILED DESCRIPTION

[0055] The following is combined with Figure 1-15 This application is described in further detail. Example 1

[0056] A dry optical fiber loose tube extrusion device comprises: an extruder 1, a cooling water tank 2, a pressing roller 3, a winding roller 4, a water injection component 5 and a driving component 6.

[0057] The extruder 1 is used to extrude the dry optical fiber loose tube 7 outwardly along the discharging direction. The extruder 1 adopts the existing technology and is mainly used to produce the dry optical fiber loose tube 7. The cooling water tank 2 is arranged in the discharging direction, and the cooling water tank 2 is filled with cooling water. The pressure roller 3 is used for the dry optical fiber loose tube 7 to bypass and make the dry optical fiber loose tube 7 partially immersed below the liquid level of the cooling water tank 2. The pressure roller 3 is arranged in the cooling water tank 2, and the dry optical fiber loose tube 7 bypasses the bottom of the pressure roller 3, so that the pressure roller 3 can make the dry optical fiber loose tube 7 immersed below the liquid level of the cooling water tank 2, thereby realizing the cooling and cooling of the outer wall surface of the dry optical fiber loose tube 7. The winding roller 4 is used to form a socket 41 for inserting one end of the dry optical fiber loose tube 7 and a water injection cavity 42 connected with the socket 41. The water injection cavity 42 is arranged on the central axis of the winding roller 4. The winding roller 4 is an axle body, and the socket 41 is opened in a direction perpendicular to the central axis of the winding roller 4. The water injection assembly 5 is used to inject water into the interior of the dry optical fiber loose tube 7 through the water injection cavity 42 and the jack 41 in sequence, and directly or indirectly make the liquid level of the water inside the dry optical fiber loose tube 7 flush with the liquid level of the cooling water tank 2. The driving assembly 6 is used to drive the winding roller 4 to rotate. The dry optical fiber loose tube 7 is inserted into the jack 41, so that the dry optical fiber loose tube 7 can be fixed relative to the winding roller 4. The water in the cooling water tank 2 has the same water temperature as the water inside the dry optical fiber loose tube 7.

[0058] Specifically, the water injection assembly is a pump and a casing in this embodiment, the output end of the pump is communicated with the water injection cavity 42, specifically communicated through a rotary joint, the input end of the pump is communicated with the water tank, and the pump injects the water in the water tank into the dry optical fiber loose tube 7 along the water injection cavity 42 and the through hole. In this embodiment, the drive assembly 6 comprises a mounting seat 61, a mounting frame 10, a motor 62, a first gear 63 and a second gear 64. The mounting frame 10 is fixedly arranged on the ground, the mounting seat 61 is fixed to the mounting frame 10, the winding roller 4 is rotatably connected to the mounting frame 10, the motor 62 is installed on the mounting seat 61, the first gear 63 is connected to the output end of the motor 62, the second gear 64 is meshed with the first gear 63, and the second gear 64 is connected to the winding roller 4. Thereby realizing that the winding roller 4 can not only rotate, but also can be injected into the water injection cavity 42 by the water injection assembly 5.

[0059] By adopting the above technical scheme, in the process of manufacturing the dry optical fiber loose tube 7, the inner wall surface of the dry optical fiber loose tube 7 and the outer wall surface of the dry optical fiber loose tube 7 are cooled at the same time, so that the dry optical fiber loose tube 7 is cooled more evenly, and the dry optical fiber loose tube 7 is prevented from being poor in quality and prone to cracks due to uneven cooling;

[0060] Because in the prior art, when the dry optical fiber loose tube 7 is immersed in the cooling water tank 2, because the inside of the dry optical fiber loose tube 7 is air, and the outside of the dry optical fiber loose tube 7 is water, the pressure that causes the inside of the dry optical fiber loose tube 7 and the outside of the dry optical fiber loose tube 7 to be subjected to are different, thereby the process that the dry optical fiber loose tube 7 is cooled down can be caused, and the actual process is that the outer wall surface of the dry optical fiber loose tube 7 is subjected to pressure, and this pressure that the outer wall surface of the dry optical fiber loose tube 7 is subjected to may appear the situation that the dry optical fiber loose tube 7 is flattened, or the situation that the dry optical fiber loose tube 7 is partially deformed, and by adopting the above-mentioned technical scheme, the inside of the dry optical fiber loose tube 7 is water, and the outside of the dry optical fiber loose tube 7 is also water, the inside and outside of the dry optical fiber loose tube 7 can be provided with the same pressure, thereby the pressure that the dry optical fiber loose tube 7 is subjected to can be made uniform, thereby avoid the situation that the dry optical fiber loose tube 7 is deformed and the dry optical fiber loose tube 7 is flattened, thereby improve the production quality of the dry optical fiber loose tube 7;

[0061] By setting the water injection component 5 and the winding roller 4, the dry optical fiber loose tube 7 can be uniformly cooled and uniformly subjected to pressure while being wound up, which greatly reduces the time waste in the production process. When the dry optical fiber loose tube 7 is wound, since there is water inside the dry optical fiber loose tube 7, the dry optical fiber loose tube 7 is prevented from being flattened by the tightening pressure during the winding process, so that the shape of the dry optical fiber loose tube 7 itself can be better guaranteed during the winding process, and the production quality of the dry optical fiber loose tube 7 can be better improved. Example 2

[0062] The difference from Example 1 is that the water injection assembly includes: a water supply tank 51, a water outlet pipe 52, a water pump 53 and a liquid level sensor. The water outlet pipe 52 is in communication with the water injection cavity 42, and the water supply tank 51 is in communication with the water outlet pipe 52; the water pump 53 is used to connect to an external water source and add water to the water supply tank 51; the liquid level sensor is used to set a preset water level in the water supply tank 51, and when the liquid level in the water supply tank 51 is higher than the preset water level, the water pump 53 stops adding water, and when the liquid level in the water supply tank 51 is lower than the preset water level, the water pump 53 starts adding water; wherein the position of the preset water level is higher than the position of the water injection cavity 42. A U-shaped tube structure is formed between the water in the water supply tank 51, the water outlet pipe 52, the water injection cavity 42, the jack 41 and the dry optical fiber loose tube 7, so that the height position of the water in the dry optical fiber loose tube 7 can be always maintained, and it is better to ensure that as the dry optical fiber loose tube 7 is squeezed outward, the water in the dry optical fiber loose tube 7 can always be filled to the position of the dry optical fiber loose tube 7 located in the cooling water tank 2, and then the preset water level is made flush with the water level in the cooling water tank 2, so that the height of the liquid level in the dry optical fiber loose tube 7 can always be guaranteed to be flush with the required liquid level in the cooling water tank 2.

[0063] In another scheme of the water injection assembly, on the basis of the above scheme, the water injection assembly also includes a control member, which increases the water pressure in the water supply tank 51 by means of compressed air. The control member includes: a pressing plate 54, a displacement drive structure 55 and a control valve, and the displacement drive structure 55 is one of a cylinder, a hydraulic cylinder and an electric push rod in this scheme. The pressing plate 54 is connected to the inner wall surface of the water supply tank 51 in a sliding and sealing manner, and the displacement drive structure 55 is used to drive the pressing plate 54 to rise and fall in the water supply tank 51. By moving up and down the pressing plate 54, the pressure in the water supply tank 51 can be controlled, so that the position of the liquid level of the water in the dry optical fiber loose tube 7 can be selectively controlled. A through hole for installing the control valve is provided in the pressing plate 54. Thereby, the pressure in the water supply tank 51 can be controlled and the water supply tank 51 can be communicated with the external environment, that is, the U-shaped tube can be kept away to control the water level, and the water level can also be directly controlled by external pressure.

[0064] In the third scheme of the water injection assembly, on the basis of the above scheme, a second air pump is arranged on the pressure plate 54, and the second air pump can directly inject external air into the water supply tank 51, thereby further increasing the range of pressure control of the water supply tank 51, and further increasing the range of position control of the water level in the dry optical fiber loose tube 7.

[0065] The above-mentioned technical scheme aims to achieve that the water level in the dry optical fiber loose tube 7 is flush with the water level in the cooling water tank 2, and in some cases, when the dry optical fiber loose tube 7 has quality problems resulting in poor fluidity of air or water in some positions inside the dry optical fiber loose tube 7, making it difficult to make the water level in the dry optical fiber loose tube 7 flush with the water level in the cooling water tank 2 under the action of the U-tube principle, the water level in the dry optical fiber loose tube 7 is controlled to be flush with the water level in the cooling water tank 2 through external interference. Example 3

[0066] The difference from Example 1 is:

[0067] A water outlet nozzle 43 is arranged in the jack 41, and the jack 41 is communicated with the water injection cavity 42 through the water outlet nozzle 43; a clamping assembly 8 is arranged on the winding roller 4, and when the dry optical fiber loose tube 7 is inserted into the jack 41, the water outlet nozzle 43 is inserted into the dry optical fiber loose tube 7, and the clamping assembly clamps the outer wall surface of the dry optical fiber loose tube 7 at the contact position with the water outlet nozzle 43; the clamping assembly is connected to the winding roller 4. In this embodiment, the water outlet nozzle 43 is arranged in the through hole, and the water outlet nozzle 43 is fixed to the inner wall surface of the through hole.

[0068] Specifically, a recessed area 44 is provided on the winding roller 4. The clamping assembly is arranged in the recessed area 44; the clamping assembly comprises: a first clamping plate 81, a second clamping plate 82, a fixing rod 83 and a fastener; the fixing rod 83 is fixed to the middle part of the winding roller 4, and the first clamping plate 81 and the second clamping plate 82 are both rotatably connected to the fixing rod 83; a first clamping groove is formed on the first clamping plate 81, and a second clamping groove is formed on the second clamping plate 82; the fastener is used to fix the first clamping plate and the second clamping plate to the winding roller 4 when the first clamping plate and the second clamping plate rotate relative to the winding roller 4 until the first clamping groove and the second clamping groove abut against the outer wall surface of the dry optical fiber loose tube 7. The dry optical fiber loose tube 7 is better fixed, so that the dry optical fiber loose tube 7 is fixed more firmly to the winding roller 4, and the dry optical fiber loose tube 7 is better wound around the roller 4.

[0069] In this embodiment, a first solution for the fastener is: threaded holes 84 are opened on the first clamping plate 81, the second clamping plate 82 and the winding roller 4, and then a locking bolt is passed through the threaded holes 84 to fix the first clamping plate 81 to the winding roller 4, and to fix the second clamping plate 82 to the winding roller 4, so that the first clamping plate and the second clamping plate are both fixed to the winding roller 4.

[0070] In this embodiment, the second scheme of the fastener is: a tightening belt is set on the first clamping plate 81, and a tightening belt is set on the second clamping plate 82. The tightening belt of the first clamping plate 81 and the tightening belt of the second clamping plate 82 are fixed by buckles, snap buckles or quick release ports, so that the first clamping plate and the second clamping plate are both fixed to the winding roller 4. Example 4

[0071] The difference from Example 1 is that: a fixed disk 9 is arranged on the winding roller 4, the fixed disk 9 is fixed to the mounting frame 10, and the fixed disk 9 is rotatably connected to the winding roller 4; a cooling element is arranged on the fixed disk 9, and the cooling element is used to cool the fixed disk 9 to a low-temperature heat exchange state; two fixed disks 9 are arranged, and a low-temperature heat exchange area is formed between the two fixed disks 9, and the dry optical fiber loose tube 7 is located in the low-temperature heat exchange area. The low-temperature heat exchange area can cool the dry optical fiber loose tube 7 wound on the winding roller 4. Since the water in the dry optical fiber loose tube 7 will increase, and the dry optical fiber loose tube 7 wound on the winding roller 4 only receives the internal water for heat dissipation, after the dry optical fiber loose tube 7 is wound on the winding roller 4 for multiple turns, the efficiency of heat exchange of the water inside the dry optical fiber loose tube 7 will become low, and it will be difficult to ensure that the water inside the dry optical fiber loose tube 7 is the same as the water temperature outside the dry optical fiber loose tube 7. Therefore, through the provision of the low-temperature heat exchange area, the dry optical fiber loose tube 7 on the winding roller 4 can be directly cooled, and the efficiency of water heat exchange inside the dry optical fiber loose tube 7 is better guaranteed, and the water inside the dry optical fiber loose tube 7 is better guaranteed to be the same as the water temperature in the cooling water tank 2.

[0072] In this embodiment, a refrigeration element is disposed on the fixed disk 9, and a low-temperature heat exchange area is formed by the refrigeration element.

[0073] In this embodiment, a cooling pipeline is provided on the fixed disk 9, and a low-temperature heat exchange area is formed by circulating cooling water in the cooling pipeline. Example 5

[0074] The difference from Example 1 is that: the cooling water tank 2 is provided with an overflow hole for the dry optical fiber loose tube 7 to pass through; a receiving box 21 is arranged below the cooling water tank 2; the receiving box 21 is used to receive the water overflowing outward from the overflow hole; a first pump body component 22 is arranged at the receiving box 21, and the first pump body component 22 is used to add the water in the receiving box 21 to the cooling water tank 2. The receiving box 21 is fixed to the mounting frame 10, and a support rod 23 is arranged on the receiving box 21, and the cooling water tank 2 is fixed to the receiving box 21 by the support rod 23. Thereby, it is realized that water will always overflow outward from the cooling water tank 2, and will always be added to the cooling water tank 2, ensuring that there is always water in the cooling water tank 2 to cool the dry optical fiber loose tube 7.

[0075] Specifically, the dry optical fiber loose tube extrusion device further includes a shifting assembly, which is used to drive the pressing roller 3 to move in the cooling water tank 2. In this embodiment, the shifting assembly is a mechanical arm, which drives the plurality of pressing rollers 3 to move, so that the plurality of pressing rollers 3 can immerse the dry optical fiber loose tube 7 at different positions in the cooling water tank 2.

[0076] Specifically, an air injection pipe 56 is provided on the water outlet pipe 52, the air injection pipe 56 passes through the water outlet pipe 52, and a portion of the air injection pipe 56 extends into the water injection cavity 42; a first air pump 57 is provided on the air injection pipe 56; a second pump body component 58 is provided on the water outlet pipe 52, and the first pump body component 22 and the second pump body component 58 are both water pumps 53.

[0077] By adopting the above technical scheme, after cooling the water in the dry optical fiber loose tube 7 for a period of time, the dry optical fiber loose tube 7 originally immersed below the liquid level of the cooling water tank 2 can be moved to the outside of the cooling water tank 2 along with the movement of the pressure roller 3 by moving the pressure roller 3, and at the same time, the second pump body component 58 draws the water in the dry optical fiber loose tube 7 outwards, and the first air pump 57 injects gas into the dry optical fiber loose tube 7, thereby achieving the replacement of the water inside the dry optical fiber loose tube 7 and the injection of gas to prevent the vacuum inside the dry optical fiber loose tube 7 from deformation and flattening. Replacing the water inside the dry optical fiber loose tube 7 can better ensure the temperature of the water inside the dry optical fiber loose tube 7.

[0078] In other embodiments, a dry optical fiber loose tube extrusion method is provided, comprising the following steps: extruding the dry optical fiber loose tube 7 outwardly through an extruder 1; immersing the dry optical fiber loose tube 7 in a cooling water tank 2 filled with cooling water through a pressure roller 3; injecting water into the dry optical fiber loose tube 7 through a water injection component, and making the water inside the dry optical fiber loose tube 7 flush with the liquid surface of the cooling water tank 2; driving the winding roller 4 to rotate through a driving component to wind and reel the dry optical fiber loose tube 7.

[0079] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dry optical fiber loose tube extrusion device, characterized in that: include: An extruder, used for extruding the dry optical fiber loose tube outward along a discharging direction; Cooling water tank, arranged in the discharging direction; A pressing roller, used for allowing the dry optical fiber loose tube to bypass and for making the dry optical fiber loose tube partially immersed below the liquid level of the cooling water tank; A winding roller is used to form a plug hole for inserting one end of the dry optical fiber loose tube and a water injection cavity communicated with the plug hole; A water injection assembly, used to inject water into the interior of the dry optical fiber loose tube through the water injection cavity and the jack in sequence, and to directly or indirectly make the liquid level of the water inside the dry optical fiber loose tube flush with the liquid level of the cooling water tank; A driving assembly, used for driving the winding roller to rotate; The dry optical fiber loose tube is inserted into the jack, so that the dry optical fiber loose tube is fixed relative to the winding roller; the water in the cooling water tank has the same temperature as the water inside the dry optical fiber loose tube; A water outlet nozzle is arranged in the socket, and the socket is connected with the water injection cavity through the water outlet nozzle; The winding roller is provided with a clamping assembly, and when the dry optical fiber loose tube is inserted into the insertion hole, the water outlet nozzle is inserted into the dry optical fiber loose tube, and the clamping assembly clamps the outer wall surface of the dry optical fiber loose tube at the contact position with the water outlet nozzle; The clamping assembly is connected to the winding roller; The cooling water tank is provided with an overflow hole for the dry optical fiber loose tube to pass through; A receiving box is provided below the cooling water tank; the receiving box is used to receive water overflowing from the overflow hole; A first pump body component is provided at the receiving tank, and the first pump body component is used to add water in the receiving tank to the cooling water tank; The dry optical fiber loose tube extrusion device further comprises a shifting assembly, and the shifting assembly is used to drive the pressing roller to move in the cooling water tank; An air injection pipe is arranged on the water outlet pipe, the air injection pipe penetrates the water outlet pipe, and a part of the air injection pipe extends into the water injection cavity; A first air pump is arranged on the air injection pipe; and a second pump body component is arranged on the water outlet pipe.

2. The dry optical fiber loose tube extrusion device according to claim 1, characterized in that: The water injection assembly includes: a water supply tank, a water outlet pipe, a water pump and a liquid level sensor; The water outlet pipe is in communication with the water injection cavity, and the water supply tank is in communication with the water outlet pipe; The water pump is used to connect to an external water source and add water to the water supply tank. The liquid level sensor is used to set a preset water level in the water supply tank and to stop the water pump from adding water when the liquid level in the water supply tank is higher than the preset water level, and to start the water pump from adding water when the liquid level in the water supply tank is lower than the preset water level. Wherein, the position of the preset water level is higher than the position of the water injection cavity.

3. The dry optical fiber loose tube extrusion device according to claim 2, characterized in that: The water injection assembly also includes a control member, which increases the water pressure in the water supply tank by means of compressed air; The control component includes: a pressure plate, a displacement driving structure and a control valve; The pressing plate is slidably and sealingly connected to the inner wall surface of the water supply tank; the displacement driving structure is used to drive the pressing plate to rise and fall in the water supply tank; The pressure plate is provided with a through hole for installing the control valve.

4. The dry optical fiber loose tube extrusion device according to claim 1, characterized in that: The winding roller is provided with a recessed area; the clamping assembly is arranged in the recessed area; The clamping assembly comprises: a first clamping plate, a second clamping plate, a fixing rod and a fastener; The fixing rod is fixed to the middle part of the winding roller, and the first clamping plate and the second clamping plate are both rotatably connected to the fixing rod; A first clamping plate is formed with a first clamping groove, and a second clamping groove is formed with the second clamping plate; the fastener is used to fix the first clamping plate and the second clamping plate to the winding roller when the first clamping plate and the second clamping plate are rotated relative to the winding roller until the first clamping groove and the second clamping groove abut against the outer wall of the dry optical fiber loose sleeve.

5. The dry optical fiber loose tube extrusion device according to claim 4, characterized in that: The dry optical fiber loose tube extrusion device also includes a mounting frame, and the mounting frame is used to install the winding roller; A fixed disk is arranged on the winding roller, the fixed disk is fixed to the mounting frame, and the fixed disk is rotatably connected to the winding roller; A cooling element is disposed on the fixed disk, and the cooling element is used to cool the fixed disk to a low-temperature heat exchange state; Two fixing plates are provided, a low-temperature heat exchange area is formed between the two fixing plates, and the dry optical fiber loose tube is located in the low-temperature heat exchange area.

6. A method for extruding a dry optical fiber loose tube using the extrusion device according to any one of claims 1 to 5, characterized in that: The method comprises extruding the dry optical fiber loose tube outwardly through an extruder; The dry optical fiber loose tube is immersed in a cooling water tank filled with cooling water by a pressing roller; Inject water into the dry optical fiber loose tube through the water injection assembly, and make the water inside the dry optical fiber loose tube flush with the liquid level of the cooling water tank; The winding roller is driven to rotate by the driving component to wind and reel the dry optical fiber loose tube.

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