Coloring device for optical fiber secondary plastic sleeve

Abstract

The invention relates to the technical field of plastic sleeve coloring, in particular to an optical fiber secondary plastic sleeve coloring device which comprises a box body, and a die sleeve is fixed to one side of the box body; two clamping mechanisms are symmetrically mounted on the die sleeve; the box body is communicated with a material storage mechanism; a coloring mechanism is mounted in the box body; the box body is communicated with the curing mechanism through the sizing die; the casing pipe is conveyed into the die sleeve, the clamping mechanism is started to move to the state of making contact with the casing pipe, and therefore the casing pipes of different sizes can be conveyed into the box body conveniently, and meanwhile the casing pipes can be guided; when the casing pipe is conveyed into the box body, the coloring mechanism sprays paint on the casing pipe, and the material storage mechanism is opened, so that the printing ink can be stirred and mixed while being added into the coloring mechanism, and the coloring effect of the printing ink is better; the colored sleeve penetrates through the sizing die and can be conveyed into the curing mechanism, and a control switch of the curing mechanism is turned on, so that the coating coated on the surface of the sleeve can be cured.

Description

Technical Field

[0001] The invention relates to the technical field of plastic casing coloring, in particular to a device for coloring an optical fiber secondary plastic casing. Background Art

[0002] The secondary fiber sheath is a loose tube that is put on the optical fiber and is equivalent to the length of the optical fiber. This tube is made by selecting suitable polymer materials, using extrusion technology, and under reasonable process conditions. The space between the tube and the optical fiber is filled with a mixture that has long-term stable chemical and physical properties, suitable viscosity, excellent waterproof performance, long-term good protection for the optical fiber, and is fully compatible with the tube material. The optical fiber has free movement space in the tube, so the optical fiber has better tensile and lateral pressure resistance after secondary sheathing. This tube is mainly used to protect the optical fiber and improve the mechanical properties and stability of the optical fiber.

[0003] However, in the process of sheathing optical cables, the waste and empty sheaths produced in the production need to consume PBT masterbatch at the same time, which can easily make the production cost too high. In addition, the production efficiency of the sheath is low, and the unused PBT masterbatch needs to be discharged when changing the color, which not only wastes materials but also wastes time. The quality and type of the masterbatch can easily lead to differences in the excess length of the optical fiber in the sheath. The more masterbatch is added, the more it affects the stability of the product, causing the PBT to shrink greatly after the finished product, causing the optical fiber to be subjected to excessive force attenuation, and there are quality problems. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides an optical fiber secondary sheathing tube coloring device.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an optical fiber secondary sheathing tube coloring device, comprising a box body, a mold sleeve is fixed on one side of the box body; two clamping mechanisms are symmetrically installed on the mold sleeve; a material storage mechanism is connected to the box body; a coloring mechanism is installed in the box body; the box body is connected to the curing mechanism through a sizing mold;

[0006] The coloring mechanism includes a hydraulic rod and a baffle plate, a hydraulic rod is fixedly installed in the box body, a telescopic end of the hydraulic rod is fixedly connected to the baffle plate, a sealing gasket is in contact with the baffle plate, a sleeve is fixedly installed inside the box body near the baffle plate, a plurality of discharge pipes are fixedly installed on the sleeve in an annular shape and equidistantly, a high-pressure nozzle is fixedly installed on the discharge pipe, the baffle plate is slidably connected to the box body, the sealing gasket is fixedly connected to the box body, and the end of the baffle plate and the sealing gasket are both arranged in an arc structure, the box body is connected to the inside of the sleeve, and the high-pressure nozzle is located at the end of the discharge pipe away from the sleeve.

[0007] Specifically, the material storage mechanism includes a positioning ring and a material barrel, a positioning ring is fixedly installed on the top of the box body, a material barrel is threadedly installed on the positioning ring, a feeding pipe is connected to the material barrel, a second motor is fixedly installed on the material barrel, an output end of the second motor is fixedly connected to a rotating shaft through a coupling, a scraper and several groups of mixing rods are fixedly installed on the rotating shaft, the lengths of the several groups of mixing rods are not equal, and the mixing rods and scrapers are inclined, the rotating shaft and the material barrel are rotatably connected, the scraper and the box body are rotatably connected, and the contact portion of the box body and the scraper is arranged in an inclined structure.

[0008] Specifically, the clamping mechanism includes a fixed rod and a first motor. Two fixed rods are symmetrically fixedly installed on the mold sleeve, and the first motor is fixedly installed on the fixed rod. The output end of the first motor is fixedly connected to a screw rod through a coupling, and a sliding frame is threadedly connected to the screw rod. A guide wheel is rotatably installed on the sliding frame. A sliding groove is provided in the fixed rod, and the screw rod is rotatably connected to the fixed rod. The sliding frame is slidably installed on the sliding groove, and the guide wheel is arranged in an "I" shape.

[0009] Specifically, the sizing die is located at one end of the box body away from the die sleeve, and the die sleeve and the sizing die are both connected to the interior of the box body.

[0010] Specifically, the curing mechanism includes a base and a support frame, the base is fixedly mounted on the box body, two groups of support frames are symmetrically fixedly connected to the base, a curing furnace is fixedly mounted on the support frame, and a conveyor belt is rotatably mounted in the curing furnace.

[0011] The beneficial effects of the present invention are:

[0012] (1) The optical fiber secondary sheathing tube coloring device described in the present invention delivers the produced tube into the mold sleeve, starts the clamping mechanism to move it to a state of contact with the tube, and then facilitates the delivery of tubes of different sizes into the box while guiding the tube, that is, the original PBT masterbatch extrusion is changed to native color (without adding masterbatch) PBT extrusion to produce native color tubes, and the tubes can be delivered to the mold sleeve after being cooled and blown dry by a hot water tank, a warm water tank, and cold water. Two fixed rods are symmetrically fixedly installed on the mold sleeve. When the tube enters the mold sleeve, the first motor installed on the fixed rod is started, and the first motor The output end of is fixedly connected with a screw rod through a coupling, and the first motor drives the screw rod to rotate in the fixed rod. Since a sliding frame is threadedly connected to the screw rod, when the screw rod rotates, the end of the sliding frame is limited by a sliding groove provided in the fixed rod, and the screw rod drives the sliding frame to move in the sliding groove, so that the two sliding frames can move in the direction close to the sleeve. A guide wheel is rotatably installed on the sliding frame. When the guide wheel moves and contacts with the side wall of the sleeve, the two guide wheels can limit the sleeve. When the sleeve moves into the mold sleeve, it can drive the guide wheel to rotate, thereby facilitating the limitation of sleeves of different sizes and guiding the sleeve at the same time.

[0013] (2) The optical fiber secondary sheathing tube coloring device described in the present invention, when the tube is transported into the box, the coloring mechanism is started to spray ink on the side wall of the tube, and the control switch of the material storage mechanism is turned on, so that the ink can be stirred and mixed while adding ink to the coloring mechanism, thereby making the ink coloring effect better, that is: the tube coloring paint can be added to the material barrel through the feeding pipe, the material barrel is threadedly installed in the positioning ring provided at the top of the box, and the second motor installed on the material barrel is turned on, and the second motor drives the rotating shaft to rotate in the material barrel. Since a plurality of mixing rods are fixedly installed on the rotating shaft at equal intervals, when the mixing rods are When the rod rotates in the barrel, the paint added to the barrel can be stirred and mixed, thereby improving the mixing effect of the paint; when coating the side wall of the casing, the control switch of the hydraulic rod is started, and the telescopic end of the hydraulic rod drives the baffle plate to slide toward the inner wall of the box. After the baffle plate is moved, the barrel can be connected with the sleeve installed on the box, and the paint in the barrel can flow into the sleeve. A number of discharge pipes are fixed on the sleeve at equal intervals in a ring shape. When the paint enters the discharge pipe, the paint can be sprayed out through the high-pressure nozzle installed on the discharge pipe, so that the paint can be evenly sprayed on the side wall of the casing, thereby facilitating the coloring of the casing.

[0014] (3) The optical fiber secondary sheathing tube coloring device described in the present invention can transport the colored tube through a sizing die to a curing mechanism. Turning on the control switch of the curing mechanism can cure the coating on the surface of the tube, that is, starting the conveyor belt installed in the curing furnace to allow the conveyor belt to transport the colored tube into the interior of the curing furnace. The interior of the curing furnace usually has specific temperature control and atmosphere adjustment functions to ensure the smooth progress of the curing process. Then, the temperature, time and UV lamp energy of the curing furnace are adjusted according to the material of the coloring layer and the required curing effect. Under the set parameters, the chemical bond between the coloring layer and the tube substrate will be generated. After the curing is completed, the sleeve usually enters the cooling system to ensure the stability of the curing effect. After cooling, the sleeve can be inspected for quality, including the firmness, uniformity and overall appearance of the coloring layer. The loose sleeve is colored by light curing coloring, and the production of the sleeve and the coloring of the sleeve are controlled separately, which not only avoids the waste of the sleeve and the coloring ink at the same time, but also makes the color change fast and convenient. In terms of quality stability, the excess length of the optical fiber in the sleeve is less affected by the masterbatch, and it is easier to accurately control the excess length of the optical fiber. These improvements reduce production costs while improving product quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of an optical fiber secondary sheathing tube coloring device provided by the present invention;

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of the structure of section A is shown;

[0018] Figure 3 It is a schematic diagram of the connection structure between the mold sleeve and the fixing rod of the present invention;

[0019] Figure 4 for Figure 3 An enlarged schematic diagram of the structure of part B is shown;

[0020] Figure 5 It is a schematic diagram of the connection structure between the box body and the scraper of the present invention;

[0021] Figure 6 for Figure 5 An enlarged schematic diagram of the C-section structure is shown;

[0022] Figure 7 for Figure 5 An enlarged schematic diagram of the D structure is shown.

[0023] In the figure: 1. box body; 2. mold sleeve; 3. clamping mechanism; 301. fixing rod; 302. first motor; 303. slide groove; 304. screw rod; 305. sliding frame; 306. guide wheel; 4. storage mechanism; 401. positioning ring; 402. material barrel; 403. second motor; 404. feeding pipe; 405. rotating shaft; 406. mixing rod; 407. scraper; 5. curing mechanism; 501. base; 502. support frame; 503. curing furnace; 504. conveyor belt; 6. sizing die; 7. coloring mechanism; 701. hydraulic rod; 702. sleeve; 703. material baffle plate; 704. sealing pad; 705. discharge pipe; 706. high-pressure nozzle. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 As shown, the optical fiber secondary sheathing tube coloring device of the present invention comprises a box body 1, a mold sleeve 2 is fixed on one side of the box body 1; two clamping mechanisms 3 are symmetrically installed on the mold sleeve 2; a material storage mechanism 4 is connected to the box body 1; a coloring mechanism 7 is installed in the box body 1; the box body 1 is connected to the curing mechanism 5 through a sizing die 6;

[0026] Specifically, Figure 5 , Figure 6 and Figure 7 As shown, the coloring mechanism 7 includes a hydraulic rod 701 and a baffle plate 703, the hydraulic rod 701 is fixedly installed in the box body 1, the telescopic end of the hydraulic rod 701 is fixedly connected with the baffle plate 703, the baffle plate 703 is abutted with a sealing gasket 704, a sleeve 702 is fixedly installed inside the box body 1 near the baffle plate 703, a plurality of discharge pipes 705 are fixedly installed on the sleeve 702 in an annular shape and equidistantly, a high-pressure nozzle 706 is fixedly installed on the discharge pipe 705, the baffle plate 703 is slidably connected to the box body 1, the sealing gasket 704 is fixedly connected to the box body 1, and the end of the baffle plate 703 and the sealing gasket 704 are both arranged in an arc structure, the box body 1 is connected to the inside of the sleeve 702, and the high-pressure nozzle 706 is located at the end of the discharge pipe 705 away from the sleeve 702.

[0027] Specifically, Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the material storage mechanism 4 includes a positioning ring 401 and a material barrel 402, the positioning ring 401 is fixedly installed on the top of the box body 1, the material barrel 402 is threadedly installed on the positioning ring 401, the material barrel 402 is connected with a feeding pipe 404, the material barrel 402 is fixedly installed with a second motor 403, the output end of the second motor 403 is fixedly connected to a rotating shaft 405 through a coupling, and a scraper 407 and a plurality of groups of mixing rods 406 are fixedly installed on the rotating shaft 405, the lengths of the plurality of groups of mixing rods 406 are not equal, and the plurality of mixing rods 406 are fixedly installed on the rotating shaft 405. The mixing rod 406 and the scraper 407 are both arranged in an inclined manner, the rotating shaft 405 is rotatably connected to the barrel 402, the scraper 407 is rotatably connected to the box body 1, and the contact portion between the box body 1 and the scraper 407 is arranged in an inclined structure. When the sleeve is transported into the box body 1, the coloring mechanism 7 is started to spray ink on the side wall of the sleeve, and the control switch of the storage mechanism 4 is turned on, so that the ink can be added to the coloring mechanism 7 while the ink can be stirred and mixed, thereby making the ink coloring effect better, that is, the feeding pipe 404 can be used to The casing coloring paint is added to the barrel 402, and the barrel 402 is threadedly installed in the positioning ring 401 provided at the top of the box body 1. The second motor 403 installed on the barrel 402 is turned on, and the second motor 403 drives the rotating shaft 405 to rotate in the barrel 402. Since a plurality of mixing rods 406 are fixedly installed on the rotating shaft 405 at equal intervals, when the mixing rods 406 rotate in the barrel 402, the paint added to the barrel 402 can be stirred and mixed, thereby improving the mixing effect of the paint; when the casing side wall is coated with paint, the hydraulic rod 70 is started. 1, the telescopic end of the hydraulic rod 701 drives the baffle plate 703 to slide toward the inner wall of the box body 1. After the baffle plate 703 is moved, the material barrel 402 can be connected with the sleeve 702 installed on the box body 1, and the paint in the material barrel 402 can flow into the sleeve 702. A plurality of discharge pipes 705 are fixed on the sleeve 702 in an annular shape at equal intervals. When the paint enters the discharge pipe 705, the paint can be sprayed out through the high-pressure nozzle 706 installed on the discharge pipe 705, so that the paint can be evenly sprayed on the side wall of the sleeve, thereby facilitating the coloring of the sleeve.

[0028] Specifically, Figure 1 , Figure 2 and Figure 3As shown, the clamping mechanism 3 includes a fixed rod 301 and a first motor 302. Two fixed rods 301 are symmetrically fixedly installed on the mold sleeve 2. The first motor 302 is fixedly installed on the fixed rod 301. The output end of the first motor 302 is fixedly connected to a screw rod 304 through a coupling. A sliding frame 305 is threadedly connected to the screw rod 304. A guide wheel 306 is rotatably installed on the sliding frame 305. A sliding groove 303 is provided in the fixed rod 301. The screw rod 304 and the fixed rod 301 are rotatably connected, a sliding frame 305 is slidably installed at the slide groove 303, and the guide wheel 306 is arranged in an "I" shape structure, and the produced sleeve is transported to the mold sleeve 2, and the clamping mechanism 3 is started to move it to a state of contact with the sleeve, so that the sleeves of different sizes can be transported to the box body 1 while the sleeves can be guided, that is, the original PBT masterbatch extrusion is changed to the original color (no masterbatch added) PBT extrusion, and the original color sleeve is produced, and the hot water tank, warm water tank, After cooling and drying with cold water, the sleeve can be transported to the mold sleeve 2. Two fixed rods 301 are symmetrically fixedly installed on the mold sleeve 2. When the sleeve enters the mold sleeve 2, the first motor 302 installed on the fixed rod 301 is started. The output end of the first motor 302 is fixedly connected to the screw rod 304 through a coupling. The first motor 302 drives the screw rod 304 to rotate in the fixed rod 301. Since the screw rod 304 is threadedly connected with a sliding frame 305, when the screw rod 304 rotates, the end of the sliding frame 305 is affected by the fixed rod 301. Some slide grooves 303 are limited, and the screw rod 304 drives the sliding frame 305 to move in the slide groove 303, so that the two sliding frames 305 can move in the direction close to the sleeve. The guide wheels 306 are rotatably installed on the sliding frames 305. When the guide wheels 306 move and contact the side walls of the sleeve, the two guide wheels 306 can limit the sleeve. When the sleeve moves into the mold sleeve 2, the guide wheels 306 can be driven to rotate, thereby facilitating the limitation of sleeves of different sizes and guiding the sleeve at the same time.

[0029] Specifically, Figure 3 As shown, the sizing die 6 is located at one end of the box body 1 away from the die sleeve 2 , and the die sleeve 2 and the sizing die 6 are both connected to the interior of the box body 1 .

[0030] Specifically, Figure 1 , Figure 3 and Figure 4As shown, the curing mechanism 5 includes a base 501 and a support frame 502. The box body 1 is fixedly mounted with the base 501, and two groups of support frames 502 are symmetrically fixedly connected to the base 501. A curing oven 503 is fixedly mounted on the support frame 502. A conveyor belt 504 is rotatably mounted in the curing oven 503. The colored sleeve passes through the sizing die 6 and can be transported to the curing mechanism 5. Turning on the control switch of the curing mechanism 5 can cure the coating applied on the surface of the sleeve, that is, starting the conveyor belt 504 installed in the curing oven 503 can make the conveyor belt 504 transport the colored sleeve into the interior of the curing oven 503. The interior of the curing oven 503 usually has specific temperature control and atmosphere adjustment functions to ensure the smooth progress of the curing process; then, according to the material of the colored layer and the According to the required curing effect, the temperature, time and UV lamp energy of the curing furnace 503 are adjusted; under the set parameters, the chemical bonds between the coloring layer and the sleeve substrate will react to form a stable combination to ensure the uniformity and consistency of the curing effect; after the curing is completed, the sleeve usually enters the cooling system to ensure the stability of the curing effect; after cooling, the sleeve can be inspected for quality, including the firmness, uniformity and overall appearance of the coloring layer; through light curing coloring, the loose sleeve is colored, and the production of the sleeve and the coloring of the sleeve are controlled separately, which not only avoids the waste of the sleeve and the coloring ink at the same time, but also makes the color change fast and convenient; in terms of quality stability, the excess length of the sleeve fiber is less affected by the masterbatch and it is easier to accurately control the excess length of the fiber. These improvements reduce production costs while improving product quality and efficiency.

[0031] When the present invention is used, first, the original PBT masterbatch extrusion is changed to the original color (no masterbatch added) PBT extrusion to produce the original color sleeve, and the sleeve can be transported to the mold sleeve 2 after being cooled and blown dry by a hot water tank, a warm water tank, and cold water. Two fixed rods 301 are symmetrically fixedly installed on the mold sleeve 2. When the sleeve enters the mold sleeve 2, the first motor 302 installed on the fixed rod 301 is started, and the output end of the first motor 302 is fixedly connected to the screw rod 304 through a coupling. The first motor 302 drives the screw rod 304 to rotate in the fixed rod 301. Since the screw rod 304 is threadedly connected to the sliding frame 30 5. When the screw rod 304 rotates, the end of the sliding frame 305 is limited by the slide groove 303 provided in the fixed rod 301. The screw rod 304 drives the sliding frame 305 to move in the slide groove 303, so that the two sliding frames 305 can move in the direction close to the sleeve. The guide wheels 306 are rotatably installed on the sliding frame 305. When the guide wheels 306 move to a state of contact with the side wall of the sleeve, the two guide wheels 306 can limit the sleeve. When the sleeve moves into the mold sleeve 2, the guide wheels 306 can be driven to rotate, thereby facilitating the positioning of sleeves of different sizes and guiding the sleeves.

[0032] The casing coloring paint can be added to the barrel 402 through the feeding pipe 404. The barrel 402 is threadedly installed in the positioning ring 401 provided on the top of the box body 1. The second motor 403 installed on the barrel 402 is turned on. The second motor 403 drives the rotating shaft 405 to rotate in the barrel 402. Since a plurality of mixing rods 406 are equidistantly fixedly installed on the rotating shaft 405, when the mixing rods 406 rotate in the barrel 402, the paint added to the barrel 402 can be stirred and mixed, thereby improving the mixing effect of the paint; when the coating is applied to the side wall of the casing, the mixing rod 406 is started. The control switch of the hydraulic rod 701, the telescopic end of the hydraulic rod 701 drives the baffle plate 703 to slide toward the inner wall of the box body 1. After the baffle plate 703 is moved, the barrel 402 can be connected with the sleeve 702 installed on the box body 1, and the paint in the barrel 402 can flow into the sleeve 702. A plurality of discharge pipes 705 are fixed on the sleeve 702 in an annular shape at equal intervals. When the paint enters the discharge pipe 705, the paint can be sprayed out through the high-pressure nozzle 706 installed on the discharge pipe 705, so that the paint can be evenly sprayed on the side wall of the sleeve, so as to facilitate the coloring of the sleeve;

[0033] The conveyor belt 504 installed in the curing furnace 503 is started, so that the conveyor belt 504 can convey the colored sleeve into the interior of the curing furnace 503. The interior of the curing furnace 503 usually has specific temperature control and atmosphere adjustment functions to ensure the smooth progress of the curing process; then the temperature, time and UV lamp energy of the curing furnace 503 are adjusted according to the material of the colored layer and the required curing effect; under the set parameters, the chemical bonds between the colored layer and the sleeve substrate will react to form a stable combination to ensure the uniformity and consistency of the curing effect; after the curing is completed, the sleeve usually enters the cooling system to ensure the stability of the curing effect; after cooling, the sleeve can be inspected for quality, including the firmness, uniformity and overall appearance of the colored layer; through light curing coloring, the loose sleeve is colored, and the production of the sleeve and the coloring of the sleeve are controlled separately, which not only avoids the waste of the sleeve and the coloring ink at the same time, but also makes the color change fast and convenient; in terms of quality stability, the excess length of the sleeve fiber is less affected by the masterbatch and it is easier to accurately control the excess length of the fiber. These improvements reduce production costs while improving product quality and efficiency.

[0034] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An optical fiber secondary sheathing tube coloring device, characterized in that: The invention comprises a box body (1), a mold sleeve (2) is fixed on one side of the box body (1); two clamping mechanisms (3) are symmetrically mounted on the mold sleeve (2); a material storage mechanism (4) is connected to the box body (1); a coloring mechanism (7) is mounted inside the box body (1); the box body (1) is connected to a curing mechanism (5) via a sizing die (6); The coloring mechanism (7) comprises a hydraulic rod (701) and a material baffle plate (703); the hydraulic rod (701) is fixedly installed in the box body (1); the telescopic end of the hydraulic rod (701) is fixedly connected to the material baffle plate (703); a sealing gasket (704) is abutted on the material baffle plate (703); a sleeve (702) is fixedly installed inside the box body (1) near the material baffle plate (703); a plurality of discharge pipes (705) are fixedly installed on the sleeve (702) at equal intervals in an annular shape; and a high-pressure nozzle (706) is fixedly installed on the discharge pipe (705).

2. The optical fiber secondary sheathing and coloring device according to claim 1, characterized in that: The baffle plate (703) is slidably connected to the box body (1), the sealing gasket (704) is fixedly connected to the box body (1), and the end of the baffle plate (703) and the sealing gasket (704) are both arranged in an arc surface structure.

3. The optical fiber secondary sheathing and coloring device according to claim 1, characterized in that: The box body (1) is in communication with the interior of the sleeve (702), and the high-pressure nozzle (706) is located at an end of the discharge pipe (705) that is away from the sleeve (702).

4. The optical fiber secondary sheathing and coloring device according to claim 1, characterized in that: The material storage mechanism (4) comprises a positioning ring (401) and a material barrel (402); the positioning ring (401) is fixedly mounted on the top of the box body (1); the material barrel (402) is threadedly mounted on the positioning ring (401); the material barrel (402) is connected to a feeding pipe (404); a second motor (403) is fixedly mounted on the material barrel (402); the output end of the second motor (403) is fixedly connected to a rotating shaft (405) via a coupling; a scraper (407) and a plurality of groups of mixing rods (406) are fixedly mounted on the rotating shaft (405).

5. The optical fiber secondary sheathing tube coloring device according to claim 4, characterized in that: The lengths of the plurality of groups of mixing rods (406) are not equal, and the mixing rods (406) and the scrapers (407) are both arranged in an inclined manner.

6. The optical fiber secondary sheathing tube coloring device according to claim 4, characterized in that: The rotating shaft (405) is rotatably connected to the material barrel (402), the scraper (407) is rotatably connected to the box body (1), and the contact portion between the box body (1) and the scraper (407) is arranged in an inclined structure.

7. The optical fiber secondary sheathing and coloring device according to claim 1, characterized in that: The clamping mechanism (3) comprises a fixed rod (301) and a first motor (302); two fixed rods (301) are symmetrically fixedly mounted on the mold sleeve (2); the first motor (302) is fixedly mounted on the fixed rod (301); the output end of the first motor (302) is fixedly connected to a screw rod (304) via a coupling; a sliding frame (305) is threadedly connected to the screw rod (304); a guide wheel (306) is rotatably mounted on the sliding frame (305); and a sliding groove (303) is provided in the fixed rod (301).

8. The optical fiber secondary sheathing and coloring device according to claim 7, characterized in that: The screw rod (304) is rotationally connected to the fixed rod (301), a sliding frame (305) is slidably mounted on the sliding groove (303), and the guide wheel (306) is arranged in an "I"-shaped structure.

9. The optical fiber secondary sheathing and coloring device according to claim 1, characterized in that: The sizing die (6) is located at one end of the box body (1) away from the die sleeve (2), and the die sleeve (2) and the sizing die (6) are both connected to the interior of the box body (1).

10. The optical fiber secondary sheathing and coloring device according to claim 9, characterized in that: The curing mechanism (5) comprises a base (501) and a support frame (502); the base (501) is fixedly mounted on the box body (1); two groups of support frames (502) are symmetrically fixedly connected to the base (501); a curing furnace (503) is fixedly mounted on the support frame (502); and a conveyor belt (504) is rotatably mounted inside the curing furnace (503).

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